Safety Recall 21H7 / Oil Strainer- 2013-2017 Audi A8, S6, S7, S8, & 2014-2017 RS7

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NAME Title Department Phone Fax Date Dear Mr. Owens: Volkswagen hereby submits the following chronology associated with the subject recall. Chronology of Defect May 31, 2014: As part of regular field monitoring and quality assurance processes, analysis of claimed field parts was started by Audi and the supplier of the turbocharger. The claims could not be directly connected to the turbocharger as the root cause. Field monitoring continued. August 2014 – January 2017: Investigation regarding root cause and failure resolution process initiated based on additional turbo charger failures in the field. Start of the development and testing of process for an optimized oil strainer including release procedure on test benches and by endurance runs. At that point there was no indication that a turbo charger failure may cause an engine stall while driving and the topic was handled as a regular quality topic. Analysis revealed that, depending on the conditions in which the vehicle is used, deposits may accumulate in the engine oil system and over time these may clog up the oil strainer, which could lead to an insufficient supply of oil to the turbochargers. A new oil strainer with a larger mesh size was developed for the oil supply for both turbochargers. February-April 2017: Technical Service Bulletin regarding turbocharger replacement, including replacing the oil strainer, was issued to address engine performance and other quality issues on vehicles in the field. On March 30, 2017 an optimized oil strainer with increased mesh size was introduced in production as a result of the quality improvement processes. In addition, Audi issued a parts-related special notice to remove obsolete oil strainer from parts inventory. Field monitoring continued. July 18, 2019: Upon request of NHTSA, Audi AG presented the field situation, indicator types, and field monitoring process to NHTSA. Analysis and monitoring of field cases worldwide did not indicate a likelihood of stalling upon a turbo charger failure due to a clogged oil strainer. May 13, 2020: Upon request of NHTSA, Audi AG presented the updated field situation. Field monitoring continued. March 29, 2021: NHTSA ODI opened up investigation PE21-009. April 2, 2021: NHTSA ODI sent an Information Request letter related to PE21-009. James C. Owens, Acting Administrator National Highway Traffic Safety Administration 1200 New Jersey Avenue, S.E. Washington, DC 20590 Subject: Chronology for Audi Recall 21H7 Christopher T. Sandvig Director Group Customer Protection 248-754-5000 248-754-5093 March 23, 2022 May 28, 2021 and June 08, 2021: Submission to NHTSA of responses to PE21-009 Information Request letter. Durability test initiated with high load driving cycle and defined stopping times in an attempt to reproduce the customer claims. Comprehensive data evaluation and assessment of VOQ and customer complaints regarding customer experience. During internal testing on test bench and track to reproduce the defect and vehicle behavior a turbo charger failure did not result in an engine stall while driving. June – August 2021: Additional analysis and testing did not show stalling conditions without prior indications. The tests have shown that due to a turbocharger failure, the engine may run rough, experience reduced performance, idle poorly and may show long cranking times. There are also certain DTCs that may occur and will illuminate the EPC and/or the MIL. September 08, 2021: Updated Technical Service Bulletin was published including a special customer survey to gather detailed information on customer experience and collect blocked oil strainer for further analyses. September 21, 2021: The topic was presented at the quarterly meeting between NHTSA and VWGoA. The presentation included results of durability testing in a car running 20,000 km with a clogged oil strainer and not experiencing turbocharger failure. November 12, 2021: Audi AG presented the current status of technical and field analyses to NHTSA including data logger and video documentation of different driving situation in relation to a turbocharger failure on the vehicle. Furthermore, the steps of disassembling the relevant engine parts and the analyses of those were presented and explained. December 09, 2021: Audi AG presented the current status of evaluation and results of the customer survey that was started in September to NHTSA. February 22, 2022: A warranty extension for 10 years / 120,000 miles was launched to address and improve customer experience. March 10, 2022: The topic was presented and discussed again in a meeting with ODI leadership. During that meeting NHTSA voiced concerns that unusual behavior such as rough idle, reduced performance, long cranking times or warning lights indicating a turbo charger failure may not be sufficient to warn the driver. March 16, 2022: The Audi Product Safety Committee decides a voluntary worldwide safety recall. Between April 2017 and the date of determination, Audi received 1,889 claims and 47 field reports in the U.S. related to oil strainer replacement. Please contact me if you require any additional information or have any questions related to this information. Sincerely, Christopher T. Sandvig Director, Group Customer Protection Group Quality

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Audi of America, Inc., 3800 Hamlin Road, Auburn Hills, MI 48326 If you should have any questions about this communication, please contact Audi Customer Experience at 1-800-253-2834 or via our “Contact Us” page at www.audiusa.com. If you still cannot obtain satisfaction, you may file a complaint with: The Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, SE., Washington, DC 20590; or call the toll-free Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153); or go to http://www.safercar.gov. To check your vehicle’s eligibility for repair under this or any other recall/service campaign, please visit the Recall/Service Campaign Lookup tool at www.audiusa.com and enter your Vehicle Identification Number (VIN). If you are the lessor and registered owner of the vehicle identified in this action, the law requires you to forward this letter immediately via firstclass mail to the lessee within ten (10) days of receipt. If you have changed your address or sold the vehicle, please fill out the enclosed prepaid Owner Reply card and mail it to us so we can update our records. 21H7 INT_ USA IMPORTANT SAFETY RECALL This notice applies to your vehicle: NHTSA: 22V178 Audi Recall: 21H7 – Oil Strainer INTERIM SAFETY RECALL NOTICE FOR YOUR VEHICLE A recall repair is not yet available This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Audi has decided that a defect, which relates to motor vehicle safety, exists in certain 2013-2017 model year Audi vehicles. Our records show that you are the owner of a vehicle affected by this action. About this recall: The oil strainer within the oil supply for the turbocharger might become blocked by oil/carbon deposits contained in the engine oil. A blocked oil strainer within the oil supply for the turbocharger leads to a lack of lubrication of the turbocharger bearings. This causes wear on the bearings and, as a result, the turbine wheel of the turbocharger may contact the housing, or the turbocharger shaft can break. This could lead to a lack of power or even stalling, which could increase the risk of a crash. A recall repair is not yet available. We will send another letter as soon as the recall work can be completed on your vehicle. What you can do now: Please do not contact your dealer about this recall unless you believe your vehicle is experiencing the condition described in this letter. A defect on the turbochargers and boost pressure system can lead to different warning messages such as the EPC, MIL, or oil warning light being displayed. In addition, the customer may notice indications like extended cranking, rough idling or lack of power. Owners experiencing these conditions are advised to contact an authorized Audi dealer to have the vehicle diagnosed/repaired. Your safety and that of your passengers is our highest priority, and we are working to make a recall repair available as soon as possible. We apologize for any inconvenience this letter may cause. Sincerely, Audi Customer Protection Audi of America, Inc., 3800 Hamlin Road, Auburn Hills, MI 48326 Si tiene alguna pregunta acerca de esta notificación, comuníquese con Atención al cliente de Audi al 1-800-253-2834 o a través de nuestra página “Contact Us” (Contáctenos) en www.audiusa.com. Si aún no obtuvo una respuesta satisfactoria, puede presentar una queja en la siguiente dirección: The Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, SE., Washington, DC 20590. También puede llamar a la línea directa gratuita de seguridad vehicular al 1-888-327-4236 (TTY: 1-800-424-9153), o bien ingresar a http://www.safercar.gov. Si desea comprobar la elegibilidad de su vehículo para una reparación en el marco de esta o de cualquier otra campaña de llamada a revisión o de servicio, utilice la herramienta Recall/Service Campaign Lookup (Búsqueda de campañas de llamada a revisión o de servicio) en www.audiusa.com e ingrese el número de identificación del vehículo (VIN). Si usted es el arrendador y propietario registrado del vehículo identificado en esta campaña, la ley exige que reenvíe esta carta de inmediato al arrendatario por correo de primera clase en el plazo de diez (10) días a partir de su recepción. Si cambió su dirección o vendió el vehículo, complete la tarjeta prepagada de respuesta del propietario que se encuentra adjunta y envíenosla para que podamos actualizar nuestros registros. 21H7 INT_ USA CAMPAÑA DE LLAMADA A REVISIÓN IMPORTANTE <DIRECCIÓN DEL CLIENTE> <CIUDAD, ESTADO Y CÓDIGO POSTAL DEL CLIENTE> Este aviso corresponde a su vehículo: < MODELYEAR> NHTSA: 22V178 Campaña de llamada a revisión de Audi: 21H7 – Filtro de aceite AVISO DE CAMPAÑA DE LLAMADA A REVISIÓN PROVISIONAL DE SU VEHÍCULO POR MOTIVOS DE SEGURIDAD El servicio de reparación por la llamada a revisión aún no está disponible El presente aviso se le envía de acuerdo con la Ley Nacional de Tráfico y Seguridad de Vehículos Motorizados. Audi ha determinado que existe un defecto relacionado con la seguridad del motor en ciertos vehículos Audi modelo 2013- 2017. Nuestros registros indican que usted es propietario(a) de uno de los vehículos afectados por esta medida. Acerca de esta campaña de llamada a revisión: El filtro de aceite dentro del suministro de aceite para el turbocompresor podría bloquearse debido a los depósitos de aceite/carbono contenidos en el aceite del motor. Un filtro de aceite bloqueado dentro del suministro de aceite para el turbocompresor produce la falta de lubricación de los rodamientos del turbocompresor. Esto provoca el desgaste de los rodamientos y, como resultado, la rueda de la turbina del turbocompresor puede hacer contacto con la carcasa, o el eje del turbocompresor puede romperse. Esto podría generar una falta de potencia o incluso un estancamiento, lo que podría aumentar el riesgo de un choque. El servicio de reparación por la llamada a revisión aún no está disponible. Enviaremos otra carta tan pronto como pueda realizarse el servicio de reparación en su vehículo. Qué puede hacer ahora: No se comunique con el concesionario por esta llamada a revisión a menos que crea que su vehículo tiene la condición descrita en esta carta. Un defecto en los turbocompresores y en el sistema de presión de sobrealimentación puede provocar que se muestren diferentes mensajes de advertencia, como EPC, MIL o la luz de advertencia del aceite. Además, el cliente puede notar indicaciones como arranque prolongado, ralentí inestable o falta de potencia. Se recomienda que los propietarios que experimenten estas condiciones se comuniquen con un concesionario Audi autorizado para que diagnostiquen o reparen el vehículo. Su seguridad y la de sus pasajeros es nuestra prioridad principal y estamos trabajando para que haya un servicio de reparación disponible cuanto antes. Nos disculpamos por cualquier inconveniente que esta carta pueda causarle. Atentamente, Defensa del Consumidor de Audi

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The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 1 of 35 Safety Recall Code: 21H7 Subject Oil Strainer Release Date August 04, 2022 Affected Vehicles Country Beginning Model Year Ending Model Year Vehicle Vehicle Count USA 2013 2017 A8 7,874 USA 2014 2017 RS7 3,305 USA 2013 2017 S6 SEDAN 6,385 USA 2013 2017 S7 5,040 USA 2013 2017 S8 3,449 CAN 2013 2017 A8 326 CAN 2014 2017 RS7 808 CAN 2013 2017 S6 SEDAN 567 CAN 2013 2017 S7 548 CAN 2013 2017 S8 292 Check Campaigns/Actions screen in Elsa on the day of repair to verify that a VIN qualifies for repair under this action. Elsa is the only valid campaign inquiry & verification source.  Campaign status must show “open.”  If Elsa shows other open action(s), inform your customer so that the work can also be completed at the same time the vehicle is in the workshop for this campaign. Problem Description The oil strainer within the oil supply for the turbocharger might become blocked by oil/carbon deposits contained in the engine oil. A blocked oil strainer within the oil supply for the turbocharger leads to a lack of lubrication of the turbocharger bearings. This causes wear on the bearings and, as a result, the turbine wheel of the turbocharger may contact the housing, or the turbocharger shaft can break. This could lead to a lack of power or even stalling, which could increase the risk of a crash. Corrective Action The oil strainer within the oil supply for the turbochargers will be replaced and an oil change will be performed. A tester routine on the scan tool will check and document the correct performance of the boost pressure system. Precautions A defect on the turbochargers and boost pressure system can lead to different warning messages such as the EPC, MIL, or oil warning light being displayed. In addition, the customer may notice indications like extended cranking, rough idling or lack of power. Owners experiencing these conditions are advised to contact an authorized Audi dealer to have the vehicle diagnosed/repaired. Code Visibility On or about August 04, 2022, the campaign code will be applied to affected vehicles. Owner Notification Owner notification will take place in August 2022. Owner letter examples are included in this bulletin for your reference. Additional Information Please alert everyone in your dealership about this action, including Sales, Service, Parts and Accounting personnel. Contact Warranty if you have any questions. The information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi Group of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 2 of 35 IMPORTANT REMINDER ON VEHICLES AFFECTED BY SAFETY & COMPLIANCE RECALLS New Vehicles in Dealer Inventory: It is a violation of federal law for a dealer to deliver a new motor vehicle or any new or used item of motor vehicle equipment (including a tire) covered by this notification under a sale or lease until the defect or noncompliance is remedied. By law, dealers must correct, prior to delivery for sale or lease, any vehicle that fails to comply with an applicable Federal Motor Vehicle Safety Standard or that contains a defect relating to motor vehicle safety. Pre-Owned Vehicles in Dealer Inventory: Dealers should not deliver any pre-owned vehicles in their inventory which are involved in a safety or compliance recall until the defect has been remedied. Dealers must ensure that every affected inventory vehicle has this campaign completed before delivery to consumers. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 3 of 35 Parts Information Parts Control Type: Free Order Parts will be managed by Free Order Initial Allocation: NO There will be no parts allocation. Please reference the Repair Projection Tool (below) to view your potential VIN population. Repair Projection Tool: (right click to open) Criteria Quantity Part Number P.O.C. Part Description Ordering Method 01 1 079-115-175-G STRAINER Free Order 1 079-103-161-Q GASKET 3 079-103-583 SEAL 1 079-129-717-J GASKET 1 079-129-717-K GASKET 1 079-145-818 SEAL 1 079-198-405-D FILTERELEM 2 4E0-121-666 SEAL RING See ELSA G -12E-050-1G DSP -or- G -013-A8J-1L-DSP COOLANT 1 N -013-815-7 -or N -013-849-8 WASHER (engine oil drain plug seal – confirm part number in ETKA) 10 N -101-243-06 BOLT 1 N -904-095-01 HOSE CLAMP 1 N -104-057-02 TORX SCREW 2 N -903-038-01 SEAL RING 1 WHT-001-011 SEAL RING Up to 2 WHT-005-529 SEAL RING See ELSA N/A 5W-40 Engine Oil The following parts are only needed if the oil pressure switch or the right side turbo coolant pipe are removed during the repair. They may not be necessary in every repair. 1 N -013-811-5 SEAL (oil pressure switch) Free Order 1 WHT-001-011-A SEAL RING (right turbo coolant pipe) NOTE The specified part numbers reflect the status at the start of this action. Interim updates made in ETKA can cause a listed part number to become unavailable. In this case, the new part number specified in ETKA should be used. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 4 of 35 Claim Entry Instructions The labor times listed here may differ from the labor operations and labor times listed in ELSA. After campaign has been completed, enter claim as soon as possible to help prevent work from being duplicated elsewhere. Attach the Elsa screen print showing action open on the day of repair to the repair order. If customer refused campaign work:  U.S. dealers: Submit the request through Audi Warranty Online under the Campaigns/Update option.  Canada dealers: Upload the repair order [signed by customer] to Audi WIN/Operations/Campaign Closure. Service Number 21H7 Damage Code 0099 Parts Vendor Code 002 Claim Type Sold vehicle: 7 10 Unsold vehicle: 7 90 Causal Indicator Mark STRAINER* as causal part Vehicle Wash/Loaner Do not claim wash/loaner under this action Criteria I.D. 01 Check for related faults in ECM. Remove charge air cooler housing. Replace oil strainer. Change engine oil and filter. Road test vehicle. Recheck ECM for faults. LABOR Model Labor Op Time Units Description A8, S8 1726 19 99 590 Replace oil strainer S6, S7, RS7 1726 20 99 650 Replace oil strainer ALL 2706 89 50 10 Connect battery charger 0150 00 00 Time stated on diagnostic protocols GFF Operations* *NOTE: if multiple GFF operations are performed, add the logs together PARTS Quantity Part Number Description 1.00 079115175G STRAINER* 1.00 079103161Q GASKET 3.00 079103583 SEAL 1.00 079129717J GASKET 1.00 079129717K GASKET Continued on next page The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 5 of 35 PARTS (continued) Quantity Part Number Description 1.00 079145818 SEAL STRIP 1.00 079198405D FILTER ELEMENT WITH GASKET 2.00 4E0121666 ROUND SEAL Up to 2.00 G 12E050S0 COOLANT (U.S. ONLY) Up to 80.00 G 12E050S0 COOLANT (CANADA ONLY) Up to 90.00 G 052167S0 ENGINE OIL 1.00 N 0138115 SEAL RING (if necessary) 1.00 N 0138157 -or- N 0138498 WASHER (engine oil drain plug seal – confirm part number in ETKA) 10.00 N 10124306 OVAL HEXAGON SOCKET HEAD BOLT 1.00 N 10405702 OVAL HEXAGON SOCKET HEAD SCREW 2.00 N 90303801 ROUND SEAL 1.00 N 90409501 RETAINING CLIP 1.00 WHT001011 ROUND SEAL 1.00 WHT001011A ROUND SEAL (if necessary) Up to 2.00 WHT005529 ROUND SEAL -AND- S6, S7 or RS7 Models ONLY Add as needed depending on vehicle equipment LABOR Labor Op Time Units Description 9092 00 50 SEE ELSA Preparation Driver Assist Calibration 4495 01 50 SEE ELSA Preparation Driver Assist Calibration 9080 15 50 SEE ELSA Camera f night vision sys adjust 9083 15 50 SEE ELSA Overhead view camera adjust 9163 16 50 SEE ELSA Radar sensor adjust The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 6 of 35 Customer Letter Example (USA) This notice applies to your vehicle: , NHTSA: 22V178 Subject: Safety Recall 21H7 – Oil Strainer Dear Audi Owner, This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Audi has decided that a defect, which relates to motor vehicle safety, exists in certain 2013-2017 model year Audi vehicles. Our records show that you are the owner of a vehicle affected by this action. What is the issue? The oil strainer within the oil supply for the turbocharger might become blocked by oil/carbon deposits contained in the engine oil. A blocked oil strainer within the oil supply for the turbocharger leads to a lack of lubrication of the turbocharger bearings. This causes wear on the bearings and, as a result, the turbine wheel of the turbocharger may contact the housing, or the turbocharger shaft can break. This could lead to a lack of power or even stalling, which could increase the risk of a crash. What will we do? To correct this defect, your authorized Audi dealer will replace the oil strainer within the oil supply for the turbochargers and perform an oil change. Additionally, a tester routine on the scan tool will check and document the correct performance of the boost pressure system. This work will take about a day to complete and will be performed for you free of charge. Please keep in mind that your dealer may need additional time for the preparation of the repair, as well as to accommodate their daily workshop schedule. What should you do? Please contact your authorized Audi dealer without delay to schedule this recall work. For your convenience, you can also visit www.audiusa.com and click on the “Find a Dealer” link to locate a dealer near you and schedule this service. Precautions you should take A defect on the turbochargers and boost pressure system can lead to different warning messages such as the EPC, MIL, or oil warning light being displayed. In addition, the customer may notice indications like extended cranking, rough idling or lack of power. Owners experiencing these conditions are advised to contact an authorized Audi dealer to have the vehicle diagnosed/repaired. Lease vehicles and address changes If you are the lessor and registered owner of the vehicle identified in this action, the law requires you to forward this letter immediately via first-class mail to the lessee within ten (10) days of receipt. If you have changed your address or sold the vehicle, please fill out the enclosed prepaid Owner Reply card and mail it to us so we can update our records. Reimbursement of Expenses If you have previously paid for repairs relating to the condition described in this letter, the enclosed form explains how to request reimbursement. We would be pleased to review your reimbursement request. Can we assist you further? If your authorized Audi dealer fails or is unable to complete this work free of charge within a reasonable time, please contact Audi Customer Experience at 1-800-253-2834 or via our “Contact Us” page at www.audiusa.com. Checking your vehicle for open Recalls and Service Campaigns To check your vehicle’s eligibility for repair under this or any other recall/service campaign, please visit the Recall/Service Campaign Lookup tool at www.audiusa.com and enter your Vehicle Identification Number (VIN). If you still cannot obtain satisfaction, you may file a complaint with: The Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, SE., Washington, DC 20590; or call the toll-free Vehicle Safety Hotline at 1- 888-327-4236 (TTY: 1-800-424-9153); or go to http://www.safercar.gov. We apologize for any inconvenience this matter may cause; however we are taking this action to help ensure your safety and continued satisfaction with your vehicle. Sincerely, Audi Customer Protection The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 7 of 35 Customer Letter Example (Canada) This notice applies to your vehicle: , Transport Canada Recall: 2022-133 Subject: Safety Recall 21H7 – Oil Strainer Dear Audi Owner, This notice is sent to you in accordance with the requirements of the Motor Vehicle Safety Act. This is to inform you that your vehicle may contain a defect that could affect the safety of a person. Our records show that you are the owner of a vehicle affected by this action. What is the issue? The oil strainer within the oil supply for the turbocharger might become blocked by oil/carbon deposits contained in the engine oil. A blocked oil strainer within the oil supply for the turbocharger leads to a lack of lubrication of the turbocharger bearings. This causes wear on the bearings and, as a result, the turbine wheel of the turbocharger may contact the housing, or the turbocharger shaft can break. This could lead to a lack of power or even stalling, which could increase the risk of a crash. What will we do? To correct this defect, your authorized Audi dealer will replace the oil strainer within the oil supply for the turbochargers and perform an oil change. Additionally, a tester routine on the scan tool will check and document the correct performance of the boost pressure system. This work will take about a day to complete and will be performed for you free of charge. Please keep in mind that your dealer may need additional time for the preparation of the repair, as well as to accommodate their daily workshop schedule. What should you do? Please contact your authorized Audi dealer without delay to schedule this recall work. Precautions you should take A defect on the turbochargers and boost pressure system can lead to different warning messages such as the EPC, MIL, or oil warning light being displayed. In addition, the customer may notice indications like extended cranking, rough idling or lack of power. Owners experiencing these conditions are advised to contact an authorized Audi dealer to have the vehicle diagnosed/repaired. Lease vehicles and address changes If you are the lessor and registered owner of the vehicle identified in this letter, you shall forward this letter (and any subsequent notice, if applicable) to the lessee within ten (10) days of receipt. If you have changed your address or sold the vehicle identified in this letter, please fill out the enclosed prepaid Owner Reply Card and mail it to us so we can update our records. Reimbursement of Expenses If you have previously paid for repairs relating to the condition described in this letter, the enclosed form explains how to request reimbursement. We would be pleased to review your reimbursement request. Can we assist you further? If your authorized Audi dealer fails or is unable to complete this work free of charge within a reasonable time, please contact Audi Customer Relations Monday through Friday from 8AM to 8PM EST at 1-800-822-2834 or via our “Contact Audi Canada” page at www.audi.ca. We apologize for any inconvenience this matter may cause; however we are taking this action to help ensure your safety and continued satisfaction with your vehicle. Sincerely, Audi Customer Protection The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 8 of 35 Repair Overview  Replace oil strainer. NOTE  These repair instructions may differ from the labor operations and labor times listed in ELSA.  Damages resulting from improper repair or failure to follow these work instructions are the dealer’s responsibility and are not eligible for reimbursement under this action.  This procedure must be read in its entirety prior to performing the repair.  Due to variations in vehicle equipment and options, the steps/illustrations in this work procedure may not identically match all affected vehicles.  Diagnosis and repair of pre-existing conditions in the vehicle are not covered under this action.  When working during extreme temperatures, it is recommended that the vehicle be allowed to acclimate inside the shop to avoid temperature-related component damage/breakage. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 9 of 35 Required Tools Engine Bung Set -VAS6122- (or equivalent) Hose Clip Pliers -VAS6362- (or equivalent) Trim Removal Wedge -3409- (or equivalent) Guide Pins -T10093- Hex Ball Socket -T10058- (or equivalent) Cooling System Charge Kit -VAS6096- The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 10 of 35 Repair Instruction Section A – Check for Previous Repair  Enter the VIN in Elsa and proceed to the “Campaign/Action” screen. TIP On the date of repair, print this screen and keep a copy with the repair order.  Confirm the Campaign/Action is open . If the status is closed, no further work is required.  Note the Applicable Criteria ID for use in determining the correct work to be done and corresponding parts associated. CRITICAL REPAIR STEP STOP! If multiple software update Campaign/Actions are open, they must be performed in order of the Start date . The oldest should be performed first.  All Safety Recalls must be completed prior to completing this campaign.  Proceed to Section B. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 11 of 35 Section B – Fault Interrogation  Connect a battery maintainer and perform a full GFF scan using the latest version of ODIS.  Check fault memory of the ECM (address 0001).  If faults related to a failed turbocharger are NOT stored: o No further diagnosis is required under this action. o Exit GFF and send diagnostic log to GFF Paperless. o Proceed to Section C for replacing the oil strainer.  If faults related to a failed turbocharger are stored: o Work through the populated test plan(s) for the fault. o If diagnosis leads to replacing the turbos due to damage from the impellers making contact with the housing:  Send diagnosis log to GFF Paperless.  Stop the ODIS session.  Take photos of damaged turbo(s).  U.S. dealers: Upload photos of damaged turbos to Doc-It for review. Contact Audi Warranty for authorization.  Canadian dealers: Create an ATA WEB ticket and attach photos of damaged turbos for review.  The oil strainer must still be replaced, Proceed to Section C. o If diagnosis leads to an issue other than damage to the turbo (air leak, for example), the diagnosis and repair of the fault will not be covered under this action.  After repairing the cause of the fault, the oil strainer must still be replaced, Proceed to Section C. NOTE Below are examples of damaged turbos with excessive wear due to failed impeller bearings. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 12 of 35 NOTE  Turbos on engine codes CRDB, CWUB, CWUC and DDTA have an integrated and abradable sealing ring.  Visible contact marks (as shown below) in the area of the sealing ring are OK.  Visible contact marks (shown in the previous photos of excessive wear) outside the area of the sealing ring are NOT OK. Example of acceptable contact on turbos with an integrated and abradable sealing ring. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 13 of 35 Section C – Replacing Oil Strainer Even small pieces of debris can cause faults. Observe the following guidelines for cleanliness when working on the turbo charging system:  Before loosening, thoroughly clean the connection points and surrounding areas with engine or brake cleaner, and then allow the cleaned area to dry completely.  Immediately seal off any open lines and connections with clean plugs taken from the Engine Bung Set -VAS6122-, for example.  Place the removed parts on a clean surface and cover them. Only use lint-free cloths.  Carefully cover or seal opened components if repairs are not performed immediately.  Only install clean parts: remove the replacement parts from their packaging just before installing them. Do not use parts that have been stored outside of their packaging (for example, in tool boxes etc.).  Do not work with compressed air when the system is open. Do not move the vehicle if at all possible.  Protect any disconnected connectors from dirt and moisture, and only connect them when they are completely dry. Remove engine cover:  First pull off the engine cover at the rear mounting points .  Then pull of the engine cover at the front mounting points . WARNING Fire hazard and risk of damage due to a missing engine cover. The engine cover must be always be installed before the hood is closed. The engine may not be started and the vehicle may not be driven with the hood closed without an engine cover. Open coolant reservoir cap: WARNING The cooling system is under pressure when the engine is warm. There is a risk of scalding due to hot steam and hot coolant. Scalding the skin and other parts of the body is possible.  Wear safety gloves.  Wear protective eyewear.  Reduce the pressure by covering the coolant expansion tank cap with a cloth and carefully opening it.  Open the coolant reservoir cap . The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 14 of 35 Remove noise insulation:  See ELSA Repair Manual: Repair manual > Body > Body Exterior > 66 Exterior Equipment > Noise Insulation > Front Noise Insulation, Removing and Installing. Remove front bumper cover (S6/S7/RS7 only):  See ELSA Repair Manual: Repair manual > Body > Body Exterior > 63 Bumpers > Front Bumper > Bumper Cover, Removing and Installing Bring lock carrier into Service Position (S6/S7/RS7 only):  See ELSA Repair Manual: Repair manual > Body > Body Exterior > 50 Body Front > Lock Carrier > Service Position, Implementing and Resetting Drain coolant: WARNING The cooling system is under pressure when the engine is warm. There is a risk of scalding due to hot steam and hot coolant. Scalding the skin and other parts of the body is possible.  Wear safety gloves.  Wear protective eyewear.  Reduce the pressure by covering the coolant expansion tank cap with a cloth and carefully opening it.  See ELSA Repair Manual: Repair manual > Engine > 8-Cylinder Direct Injection 4.0L 4V TFSI Engine > 19 Cooling System > Coolant System/Coolant > Coolant, Draining and Filling The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 15 of 35 Remove lock carrier cover (A8/S8):  Remove the lock carrier cover <2> in direction of .  If equipped, at the same time release the tab <3>. While doing this the retaining tabs <4> will unlock.  Remove the cover from the groove on the lock carrier <1>. Remove left and right longitudinal members (A8/S8):  Remove the front bolts <1> and rear bolts <3> and lift out the longitudinal members <2>. NOTE Only the right side has to be removed for the A8. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 16 of 35 Remove air filter housing(s) and air duct (A8/S8):  Loosen the hose clamps to remove the air duct pipe. NOTE A8 shown. Procedure for S8 will be similar.  From underneath the vehicle, press the release buttons and remove the secondary air hose <1> (right side).  Remove the air filter housing <2> upward.  Remove the bolts and then remove the air duct <1>. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 17 of 35 Remove air duct and air filter housing (S6/S7/RS7):  Remove the bolts and air duct <1>.  Remove the bolts and the air duct <2>.  Remove the air duct hoses by loosening the hose clamps <2>.  Remove the air filter housing <1> with the air duct hoses upward. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 18 of 35 Disconnect coolant hoses from charge air cooler:  Loosen the clamps <1> and remove the coolant hoses.  Ignore the . Remove secondary air injection hose:  Loosen the hose clamps and press the release buttons <1> to remove the secondary air injection pipe. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 19 of 35 Free up front coolant pipe and coolant hoses:  Remove nut from right cylinder head.  Loosen the clamp and remove the coolant hose.  Free up the wiring harness.  Remove the bolt <3>, then remove the front coolant pipe <2> from the left cylinder head and from the right cylinder head. NOTE When removing seized coolant pipe from the cylinder head:  Use penetrating oil around the pipe to cylinder head connection.  LIGHTLY tap each side of the coolant line near the connection with a small hammer.  DO NOT attempt to remove the pipe until the pipe can be moved back and forth.  Rotate the line gently back and forth until the connection is rotating in the cylinder head.  Once the connection is moving freely, pry up on the pipe with slight even pressure using a pry bar while rotating the pipe back and forth.  Open the clip <1> and disconnect the upper right coolant hose from the radiator. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 20 of 35 Remove Throttle Valve Control Module -J338-:  Loosen the clamp <1> and remove the air duct hose.  Unlock and disconnect the connector <2> and free up the wire.  Remove the bolts and push the Turbocharger Recirculation Valve -N249- and Turbocharger Recirculation Valve Bank 2 -N427- to the side.  Remove the bolts and loosen the hose clamps <1>. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 21 of 35  To prevent damage to the air duct hoses, carefully lift the respective air duct hoses using the -3409- and spray some silicone spray between the hose and the hose connections .  Disconnect connectors <2> and remove Throttle Valve Control Module -J338-. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 22 of 35 Remove components in preparation of removing charge air cooler (as needed):  Disconnect the vacuum hose <1>.  Remove the bolts <3> and then remove the vacuum reservoir <2>.  Press the release button <3> and loosen the hose clamps to remove the secondary air injection hose.  Disconnect the connector <2>.  Free up the secondary air injection hose <1> and press it downward.  Remove the bolts .  Remove upper clamp on hose between the air duct pipe and the oil separator.  Remove the air duct pipe. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 23 of 35  Disconnect the connector <3>.  Free up the vacuum hoses .  Remove the bolts <2> (quantity: 3).  Remove the bolts <1 through 6> pull the housing for the charge air cooler slightly forward. CAUTION There is a risk of contamination from leaking engine oil. When removing the charge air cooler housing, up to 0.5 liters of engine oil can drain from the oil separator into the area between the cylinder heads. Extract engine oil that has leaked and clean the engine. Remove cover in inner-V:  Disconnect the connector <3>.  Remove the bolts <1> and then remove the hose lines.  Loosen the hose clamps to remove the oil return hoses <2>. TIP It may be necessary to remove the right side turbo coolant supply line from the cylinder head in order to remove the oil supply lines. If this line is removed, the seal must be replaced. It may be necessary to remove the oil pressure switch in order to access the coolant hose clamps <2>. If the oil pressure switch is removed, the seal must be replaced. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 24 of 35 CRITICAL REPAIR STEP Observe the guidelines for clean working conditions:  Remove all dirt and debris around the cover before removing.  If the bolt heads are full of dirt, ensure the bolt heads are clean before removing.  Remove the bolts in the following sequence <11 to 1>, and then remove the cover in the inner-V.  Disconnect the connector and free up the wire. Replace oil strainer:  Remove oil strainer .  Clean mounting area for oil strainer with a lint free cloth.  Install new oil strainer in the reverse order of removal. Part Number Part Description 079-115-175-G Oil Strainer The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 25 of 35 Install cover in inner-V:  Clean the mounting surface for the cover.  Replace cover gasket.  Replace cover bolts. Part Number Part Description 079-103-161-Q Gasket N -101-243-06 M6x20 Bolt (x10) N -104-057-02 M6x45 Bolt (x1) (pos. #4)  Install cover in the reverse order of removal.  Torque bolts in the following sequence: Step Bolts Tightening Description 1 <1-11> Install by hand all the way 2 <1-11> 5 Nm diagonally 3 <1-11> Turn an additional 90° in a diagonal sequence  Reconnect connector .  Install oil return hoses and secure clamps <2>.  Replace o-rings for oil supply lines.  Connect oil supply lines and torque bolts <1> to 9 Nm.  Connect connector <3>.  If the oil pressure switch was removed: o Replace seal. o Torque switch to 20 Nm.  If the right side coolant supply line was removed. o Replace seal. o Torque bolt to 9 Nm, Part Number Part Description N -903-038-01 O-ring – oil supply pipe (x2) N -013-811-5 Seal for oil pressure switch (if necessary) WHT-001-011-A O-ring – right side coolant supply pipe (if necessary) The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 26 of 35 Replace oil separator seals:  Replaces seals <1> for oil separator <2>. Part Number Part Description 079-103-583 Seal (x3) Reinstall charge air cooler housing:  Installation is the reverse order of removal.  Replace gaskets. Part Number Part Description 079-129-717-K Gasket – right side 079-129-717-J Gasket – left side  Torque bolts <1, 2 and 6> to 9 Nm. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 27 of 35 Reinstall remaining engine components in the reverse order of removal:  Reference ELSA Repair Manual as needed.  Torque screw clamps as follows: 1 – Hose Clamp -a- = 13 mm wide: 5.5 Nm 2 – Hose Clamp -b- = 9 mm wide: 3.4 Nm  Reinstall the air duct pipe.  Replace the o-ring.  Install new clamp Part Number Part Description WHT-005-529 O-ring N -904-095-01 Clamp  Torque bolts to 9 Nm. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 28 of 35  Reinstall throttle valve unit in the reverse order of removal.  Replace the gasket for the throttle valve unit. Part Number Part Description 079-145-818 Gasket  Torque bolts to 5 Nm.  Torque screw clamps <1> to 5.5 Nm.  Reinstall Turbocharger Recirculation Valve -N249- and Turbocharger Recirculation Valve Bank 2 -N427- in the reverse order of removal.  Torque bolts to 9 Nm. NOTE Contrary to the repair manual, the seals for the recirculation valves can be reused.  Reinstall and secure coolant hoses and clamps <1> in the reverse order of removal. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 29 of 35  Reinstall air ducts in the reverse order of removal.  Torque bolts to 2.5 Nm.  Reconnect all coolant hoses.  Replace seals for the upper and lower radiator hoses. Part Number Part Description 4E0-121-666 O-ring (x2)  Reinstall coolant hose and clamp in the reverse order of removal.  Ensure ground cable is attached and torque nut to 9 Nm. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 30 of 35  Reinstall the front coolant pipe <2> in the reverse order of removal.  Replace o-ring for connection to left cylinder head. Part Number Part Description WHT-001-011 O-ring  Torque bolt <3> to 9 Nm.  Reinstall the secondary air injection hose <1> in the reverse order of removal.  Reinstall vacuum reservoir <2> in the reverse order of removal.  Secure vacuum line <1>. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 31 of 35  Reinstall air filter housings in the reverse order of removal.  Reinstall longitudinal members <2> in the reverse order of removal.  Torque bolts <1 and 3> to 24 Nm. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 32 of 35  Reset service position (reference ELSA Repair Manual).  Reinstall lock carrier cover <2> in opposite direction of removal.  Install the lock carrier cover into the guides on the lock carrier, the radiator grille and the bumper cover. Fill coolant:  See ELSA Repair Manual: Repair manual > Engine > 8-Cylinder Direct Injection 4.0L 4V TFSI Engine > 19 Cooling System > Coolant System/Coolant > Coolant, Draining and Filling The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 33 of 35 Reinstall engine cover in the reverse order of removal.  To prevent damage to the engine cover, do not hit it with a fist or a tool.  Pay attention to the oil filler tube when positioning the engine cover. WARNING Fire hazard and risk of damage due to a missing engine cover. The engine cover must be always be installed before the hood is closed. The engine may not be started and the vehicle may not be driven with the hood closed without an engine cover. Change engine oil and filter:  Reference ELSA Repair Manual as needed.  Replace drain plug seal.  Torque drain plug to 20 Nm.  Torque oil filter housing to 25 Nm. Part Number Part Description N/A Engine oil 079-198-405-D Oil filter N -013-849-8 -or- N -013-815-7 Drain plug seal (confirm part number in ETKA)  Reinstall front noise insulation in the reverse order of removal. Road test and recheck fault memory:  Perform a short road test.  Recheck ECM fault memory to ensure fault P0299 is not present.  Send diagnostic log to GFF Paperless. The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 34 of 35 Calibrate driver assist systems depending on vehicle equipment (S6/S7/RS7 ONLY):  See ELSA Repair Manual for driver assist system calibration steps. Proceed to Section D The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Audi dealer. 2022 Audi of America, Inc. and Audi Canada. All Rights Reserved. August 2022 21H7 Page 35 of 35 Section D – Campaign Completion Stamp Item#: AUD4927ENG -ORItem # AUD4927FRE  Once the campaign has been completed, the technician should stamp the repair order.  Stamps are available for ordering through the Compliance Label Ordering Portal.  Proceed to Section E Section E – Parts Return/Disposal Properly store (retain), destroy or dispose of removed parts in accordance with all state/province and local requirements, unless otherwise indicated and/or requested through the Warranty Parts Portal (WPP) for U.S. and the Part Destruction and Core Disposition Report for Canada.

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21H7 USA IMPORTANT SAFETY RECALL This notice applies to your vehicle: , NHTSA: 22V178 Subject: Safety Recall 21H7 – Oil Strainer Dear Audi Owner, This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Audi has decided that a defect, which relates to motor vehicle safety, exists in certain 2013- 2017 model year Audi vehicles. Our records show that you are the owner of a vehicle affected by this action. What is the issue? The oil strainer within the oil supply for the turbocharger might become blocked by oil/carbon deposits contained in the engine oil. A blocked oil strainer within the oil supply for the turbocharger leads to a lack of lubrication of the turbocharger bearings. This causes wear on the bearings and, as a result, the turbine wheel of the turbocharger may contact the housing, or the turbocharger shaft can break. This could lead to a lack of power or even stalling, which could increase the risk of a crash. What will we do? To correct this defect, your authorized Audi dealer will replace the oil strainer within the oil supply for the turbochargers and perform an oil change. Additionally, a tester routine on the scan tool will check and document the correct performance of the boost pressure system. This work will take about a day to complete and will be performed for you free of charge. Please keep in mind that your dealer may need additional time for the preparation of the repair, as well as to accommodate their daily workshop schedule. What should you do? Please contact your authorized Audi dealer without delay to schedule this recall work. For your convenience, you can also visit www.audiusa.com and click on the “Find a Dealer” link to locate a dealer near you and schedule this service. Precautions you should take A defect on the turbochargers and boost pressure system can lead to different warning messages such as the EPC, MIL, or oil warning light being displayed. In addition, the customer may notice indications like extended cranking, rough idling or lack of power. Owners experiencing these conditions are advised to contact an authorized Audi dealer to have the vehicle diagnosed/repaired. Audi of America, Inc. 3800 Hamlin Road Auburn Hills, MI 48326 +1 800 253 2834 www.audiusa.com Audi of America, Inc. IMPORTANT SAFETY RECALL Lease vehicles and address changes If you are the lessor and registered owner of the vehicle identified in this action, the law requires you to forward this letter immediately via firstclass mail to the lessee within ten (10) days of receipt. If you have changed your address or sold the vehicle, please fill out the enclosed prepaid Owner Reply card and mail it to us so we can update our records. Reimbursement of Expenses If you have previously paid for repairs relating to the condition described in this letter, the enclosed form explains how to request reimbursement. We would be pleased to review your reimbursement request. Can we assist you further? If your authorized Audi dealer fails or is unable to complete this work free of charge within a reasonable time, please contact Audi Customer Experience at 1-800-253-2834 or via our “Contact Us” page at www.audiusa.com. Checking your vehicle for open Recalls and Service Campaigns To check your vehicle’s eligibility for repair under this or any other recall/service campaign, please visit the Recall/Service Campaign Lookup tool at www.audiusa.com and enter your Vehicle Identification Number (VIN). If you still cannot obtain satisfaction, you may file a complaint with: The Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, SE., Washington, DC 20590; or call the toll-free Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153); or go to http://www.safercar.gov. We apologize for any inconvenience this matter may cause; however we are taking this action to help ensure your safety and continued satisfaction with your vehicle. Sincerely, Audi Customer Protection

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AUDI DEALER COMMUNICATION Ensure all dealership personnel are aware of this notice so they are able to address customer questions. Contact Warranty if you require additional assistance. Direct press inquiries to Audi Public Relations. Audi Customer Protection 21H7_DLR_LAUNCH Repair Available – Safety Recall 21H7 / Oil Strainer This notice is for:  Dealer Principal  General Manager  Sales Managers  Service Manager  Parts Manager  Service Advisor  Warranty Administrator  Technicians Date: August 03, 2022 Issue: The oil strainer within the oil supply for the turbocharger might become blocked by oil/carbon deposits contained in the engine oil. A blocked oil strainer within the oil supply for the turbocharger leads to a lack of lubrication of the turbocharger bearings. This causes wear on the bearings and, as a result, the turbine wheel of the turbocharger may contact the housing, or the turbocharger shaft can break. This could lead to a lack of power or even stalling, which could increase the risk of a crash. Precautions A defect on the turbochargers and boost pressure system can lead to different warning messages such as the EPC, MIL, or oil warning light being displayed. In addition, the customer may notice indications like extended cranking, rough idling or lack of power. Owners experiencing these conditions are advised to contact an authorized Audi dealer to have the vehicle diagnosed/repaired. Repair:  REPAIR AVAILABLE – August 04, 2022 – The oil strainer within the oil supply for the turbochargers will be replaced and an oil change will be performed. A tester routine on the scan tool will check and document the correct performance of the boost pressure system.  See ELSA/ServiceNet for complete repair & claiming instructions  Check daily campaign open inventory report or OMD for affected vehicles in inventory  Repair every affected inventory vehicle before delivery to consumers. Parts Department: There will be no parts allocation. Parts will be managed by Free Order . Affected Vehicles Country Beginning Model Year Ending Model Year Vehicle Vehicle Count USA 2013 2017 A8 7,874 USA 2014 2017 RS7 3,305 USA 2013 2017 S6 SEDAN 6,385 USA 2013 2017 S7 5,040 USA 2013 2017 S8 3,449 CAN 2013 2017 A8 326 CAN 2014 2017 RS7 808 CAN 2013 2017 S6 SEDAN 567 CAN 2013 2017 S7 548 CAN 2013 2017 S8 292 *Counts reflect overall population; some vehicles may have already been repaired. Check Campaigns/Actions screen in Elsa on the day of repair to verify that a VIN qualifies for repair under this action. Elsa is the only valid campaign inquiry & verification source. Notes:  Schedule owner repairs immediately  Owner mailing – August 2022 IMPORTANT REMINDER: VEHICLES AFFECTED BY SAFETY & COMPLIANCE RECALLS New Vehicles in Dealer Inventory: It is a violation of federal law for a dealer to deliver a new motor vehicle or any new or used item of motor vehicle equipment (including a tire) covered by this notification under a sale or lease until the defect or noncompliance is remedied. By law, dealers must correct, prior to delivery for sale or lease, any vehicle that fails to comply with an applicable Federal Motor Vehicle Safety Standard or that contains a defect relating to motor vehicle safety. Pre-Owned Vehicles in Dealer Inventory: Dealers should not deliver any pre-owned vehicles in their inventory which are involved in a safety or compliance recall until the defect has been remedied. -END OF MESSAGE

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AUDI DEALER COMMUNICATION Ensure all dealership personnel are aware of this notice so they are able to address customer questions. Contact Warranty if you require additional assistance. Direct press inquiries to Audi Public Relations. Audi Customer Protection 21H7_DLR_ADV Advance Notice – Safety Recall 21H7 / Oil Strainer This notice is for:  Dealer Principal  General Manager  Sales Managers  Service Manager  Parts Manager  Service Advisor  Warranty Administrator  Technicians Date: March 29, 2022 Issue: The oil strainer within the oil supply for the turbocharger might become blocked by oil/carbon deposits contained in the engine oil. A blocked oil strainer within the oil supply for the turbocharger leads to a lack of lubrication of the turbocharger bearings. This causes wear on the bearings and, as a result, the turbine wheel of the turbocharger may contact the housing, or the turbocharger shaft can break. This could lead to a lack of power or even stalling, which could increase the risk of a crash. Precautions Repair A defect on the turbochargers and boost pressure system can lead to different warning messages such as the EPC, MIL, or oil warning light being displayed. In addition, the customer may notice indications like extended cranking, rough idling or lack of power. Owners experiencing these conditions are advised to contact an authorized Audi dealer to have the vehicle diagnosed/repaired.  REPAIR NOT YET AVAILABLE  Check daily campaign open inventory report or OMD for affected vehicles in inventory. Affected Vehicles Country Beginning Model Year Ending Model Year Vehicle Vehicle Count USA 2013 2017 A8 7,874 USA 2014 2017 RS7 3,305 USA 2013 2017 S6 SEDAN 6,385 USA 2013 2017 S7 5,040 USA 2013 2017 S8 3,449 CAN 2013 2017 A8 326 CAN 2014 2017 RS7 808 CAN 2013 2017 S6 SEDAN 567 CAN 2013 2017 S7 548 CAN 2013 2017 S8 292 *Counts reflect overall population; some vehicles may have already been repaired. Check Campaigns/Actions screen in Elsa on the day of repair to verify that a VIN qualifies for repair under this action. Elsa is the only valid campaign inquiry & verification source. Notes: IMPORTANT REMINDER: VEHICLES AFFECTED BY SAFETY & COMPLIANCE RECALLS New Vehicles in Dealer Inventory: It is a violation of federal law for a dealer to deliver a new motor vehicle or any new or used item of motor vehicle equipment (including a tire) covered by this notification under a sale or lease until the defect or noncompliance is remedied. By law, dealers must correct, prior to delivery for sale or lease, any vehicle that fails to comply with an applicable Federal Motor Vehicle Safety Standard or that contains a defect relating to motor vehicle safety. Pre-Owned Vehicles in Dealer Inventory: Dealers should not deliver any pre-owned vehicles in their inventory which are involved in a safety or compliance recall until the defect has been remedied. -END OF MESSAGE

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-178 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Volkswagen Group of America, Inc. Submission Date : MAR 23, 2022 NHTSA Recall No. : 22V-178 Manufacturer Recall No. : 21H7 Manufacturer Information : Manufacturer Name : Volkswagen Group of America, Inc. Address : 3800 Hamlin Road Auburn Hills MI 48326 Company phone : 1-800-893-5298 Population : Number of potentially involved : 26,053 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2013-2017 Audi S8 Vehicle Type : Body Style : Power Train : NR Descriptive Information : The recall population was determined by records of the vehicle assembly information. Vehicles not included in the recall were built with an oil strainer with a larger mesh size or already received the oil strainer with a larger mesh width during a prior repair. S8 3,449 Production Dates : JUN 27, 2012 – MAR 30, 2017 VIN Range 1 : Begin : WAUD2AFD0EN004908 End : WUAJ5AFD2HN901376 ✔ Not sequential Part 573 Safety Recall Report 22V-178 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 2 : 2013-2017 Audi S7 Vehicle Type : Body Style : Power Train : NR Descriptive Information : The recall population was determined by records of the vehicle assembly information. Vehicles not included in the recall were built with an oil strainer with a larger mesh size or already received the oil strainer with a larger mesh width during a prior repair. S7 5,040 Production Dates : JUN 27, 2012 – MAR 30, 2017 VIN Range 1 : Begin : WAUW2AFC2DN018839 End : WAU2FAFC6HN115695 ✔ Not sequential Vehicle 3 : 2013-2017 Audi S6 SEDAN Vehicle Type : Body Style : Power Train : NR Descriptive Information : The recall population was determined by records of the vehicle assembly information. Vehicles not included in the recall were built with an oil strainer with a larger mesh size or already received the oil strainer with a larger mesh width during a prior repair. S6 SEDAN 6,385 Production Dates : JUN 25, 2012 – MAR 30, 2017 VIN Range 1 : Begin : WAUJ2AFC4DN019680 End : WAUHFAFC8HN115708 ✔ Not sequential Part 573 Safety Recall Report 22V-178 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 4 : 2014-2017 Audi RS7 Vehicle Type : Body Style : Power Train : NR Descriptive Information : The recall population was determined by records of the vehicle assembly information. Vehicles not included in the recall were built with an oil strainer with a larger mesh size or already received the oil strainer with a larger mesh width during a prior repair. RS7 3305 Production Dates : JUL 25, 2013 – MAR 30, 2017 VIN Range 1 : Begin : WUAW2AFC9GN900343 End : WUAWRAFC0HN904634 ✔ Not sequential Vehicle 5 : 2013-2017 Audi A8 Vehicle Type : Body Style : Power Train : NR Descriptive Information : The recall population was determined by records of the vehicle assembly information. Vehicles not included in the recall were built with an oil strainer with a larger mesh size or already received the oil strainer with a larger mesh width during a prior repair. A8 7874 Production Dates : JUN 27, 2012 – MAR 30, 2017 VIN Range 1 : Begin : WAUR2AFD2DN004929 End : WAU43AFD4HN019073 ✔ Not sequential Description of Defect : Description of the Defect : The oil strainer within the oil supply for the turbochargers might become blocked by oil/carbon deposits contained in the engine oil. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : A blocked oil strainer within the oil supply for the turbochargers leads to a lack of lubrication of the turbocharger bearings. This causes wear on the bearings and, as a result, the turbine wheel of the turbocharger may contact the housing, or the turbocharger shaft can break. This could lead to a lack of power or even stalling, which could increase the risk of a crash. Description of the Cause : The mesh of the oil strainer within the oil supply for the turbochargers might Part 573 Safety Recall Report 22V-178 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 get blocked by oil/carbon deposits contained in the engine oil. Identification of Any Warning that can Occur : A defect on the turbochargers and boost pressure system can lead to different warning messages such as the EPC, MIL or oil warning light being displayed. In addition, the customer may notice indications like extended cranking, rough idling or lack of power. Involved Components : Component Name 1 : oil strainer Component Description : oil strainer within the oil supply for the turbochargers Component Part Number : 079115175 G Supplier Identification : Component Manufacturer Name : Audi AG Address : Auto-Union-Str. 1 Ingolstadt Foreign States 85057 Country : Germany Chronology : Please see separate file for the chronology Description of Remedy : Description of Remedy Program : The oil strainer within the oil supply for the turbochargers will be replaced and an oil change will be performed. A tester routine on the scan tool will check and document the correct performance of the boost pressure system. Audi will offer a reimbursement plan under this recall. How Remedy Component Differs from Recalled Component : The recalled component is the oil strainer 079115175 F with 30μm mesh width. Part 573 Safety Recall Report 22V-178 Page 5 The information contained in this report was submitted pursuant to 49 CFR §573 The recall remedy component can be distinguished from the recalled component because the oil strainer 079115175 G has a larger mesh width of 90 μm. Identify How/When Recall Condition was Corrected in Production : Vehicles produced after March 30, 2017 have been built with oil stainers which have the larger mesh width. Recall Schedule : Description of Recall Schedule : Dealers/owners: On or before May 20, 2022 Planned Dealer Notification Date : MAY 20, 2022 – MAY 20, 2022 Planned Owner Notification Date : MAY 20, 2022 – MAY 20, 2022 * NR – Not Reported

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