Safety Recall 19Q4 Right Front Brake Pipe Nut – 2022 Volkswagen Tiguan

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November 3, 2021 NHTSA CAMPAIGN NUMBER: 21V853000

Improperly Tightened Brake Pipe Nut

A loose brake pipe nut may allow brake fluid to leak, extending the distance required to stop and increasing the risk of a crash.

 

NHTSA Campaign Number: 21V853

Manufacturer VolkswageneBay Group of America, Inc.

Components SERVICE BRAKES, HYDRAULIC

Potential Number of Units Affected 1,285

 

Summary

VolkswageneBay Group of America, Inc. (VolkswageneBay) is recalling certain 2022 Tiguan vehicles. The nut that secures the brake pipe near the right-front wheel well may be loose.

 

Remedy

Dealers will inspect and tighten the brake pipe nut, as necessary, free of charge. Owner notification letters were mailed November 23, 2021. Owners may contact VolkswageneBay customer service at 1-800-893-5298. VolkswageneBay’s number for this recall is 19Q4

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

 

Check if your Volkswagen has a Recall

 


Affected Vehicles

Country Beginning Model YearEnding Model Year Vehicle Vehicle Count
USA20222022TIGUAN1,285
CAN20222022TIGUAN300

 

Problem Description

The brake pipe nut at the right front wheel well may not be torqued to the proper specification. If the nut becomes loose, brake fluid may leak. This in turn can result in the vehicle requiring a longer braking distance, increasing the risk of a crash.

 

Corrective Action

Inspect and, if necessary, torque the affected nut to the proper value.

 

Precautions

Vehicle driver may see the brake warning light illuminate just after significant brake fluid loss. If this happens, owners are advised to contact an authorized VolkswageneBay dealer without delay to make arrangements to have the vehicle inspected/repaired.

 

Code Visibility

On or about November 16, 2021, the campaign code will be applied to affected vehicles.

 

Owner Notification

Owner notification will take place in November 2021. Owner letter examples are included in this bulletin for your reference.

 


Repair Overview

 

Brake Line Inspection

  • Raise vehicle on hoist.

 

Risk of injury of the skin due to corrosive brake fluid.

Irritation and injury of the skin possible.

Avoid contact with skin. Wear gloves

 

  • Inspect passenger front brake line to brake hose connection by hand. DO NOT USE TOOLS!

 

  • If connection is loose:
    • Tighten the connection to 14 Nm.

 

  • If connection is not loose:
    • Verify the connection is tight by torqueing to 14 Nm.

 

Changing Brake Fluid

 

WARNING

Faulty brakes increase the risk of a crash.

Make sure the brakes are working correctly before driving the vehicle for the first time.

 

WARNING

Risk of crash due to the brakes malfunctioning.

Brake fluid must never come into contact with fluids containing mineral oils (oil, gasoline, cleaning solutions).

Wear safety gloves that are free of oil and grease.

 

CAUTION

Risk of a crash due to the water content in the brake fluid being too high. Brake fluid is hygroscopic, meaning that it absorbs moisture from the surrounding air.

Brake failure due to the formation of steam bubbles.

Store brake fluid in air-tight containers.

Immediately seal any open brake hoses and brake lines.

 

CAUTION

There is a risk of contamination and paint damage from leaking brake fluid

Rinse off any leaking brake fluid immediately using plenty of water.

 

CAUTION

Risk of injury of the skin due to corrosive brake fluid.

Irritation and injury of the skin possible.

Avoid contact with skin. Wear gloves

 

Brake Fluid, Extracting:

 

  • Insert the suction hose from the Brake Charger/Bleeder Unit through the screen <1> in the brake fluid reservoir to extract as much brake fluid as possible.
  • Do not remove the screen inside the brake fluid reservoir.
  • After extracting, observe that no further brake fluid runs into the reservoir (the brake fluid level in the reservoir must align with the lower edge of the screen).

 

NOTE

  • The bleed hose must fit tightly over the bleed screw to prevent air from getting into the brake system.
  • The brake fluid level in the reservoir must be high enough so that air cannot get into the brake system.
  • By using the Brake Bleeding Tool Set – Insert Tool -VAS6564/9-, the removal of the rear wheels is no longer necessary.

 

Attach the Brake Charger/Bleeder Unit:

  • Attach the adapter <1> to the brake fluid reservoir.
  • Attach the hose from the Brake Filling and Bleeding Equipment to the adapter <1>.
  • Set the pressure on the Brake Charger/Bleeder Unit to a maximum of 2 bar and switch on the Brake Charger/Bleeder Unit.

 

Bleeding brakes โ€“ Front Axle:

  • Remove the cap from the bleed screw on the left front brake caliper.
  • Connect the collector bottle bleed hose <1> to the left front bleeder valve.
  • Open the breather valve and let 200 ml drain out.
  • Close the bleeder screw and torque to 4.5 Nm.
  • Reattach the brake caliper bleeder screw cap.
  • Repeat the steps on the front right side.

 

Bleeding brakes โ€“ Rear axle:

  • Use the Brake Bleeding Tool Set – Insert Tool -VAS6564/9- for the rear axle.
  • Guide the bleeder hose <1> from the Brake Bleeding Tool Set -VAS6564- from the inside of the rim through the socket <3> and connect to the bleed screw.
  • Open the breather valve and let 300 ml drain out.
  • Close the bleeder screw and torque to 4.5 Nm.
  • Reattach the brake caliper bleeder screw cap.
  • Repeat the same procedure on the right rear side of the vehicle.

 

Final steps:

  • Remove the filler hose from the adapter.
  • Remove the adapter from the brake fluid reservoir.
  • Check the brake fluid level and correct if necessary. It must be between <1> and <2>.
  • Reinstall the brake fluid reservoir cap,
  • Perform a function test during the test drive.

 


What is the safety concern for Safety Recall 19Q4?

The brake pipe nut at the right front wheel well may not be torqued to the proper specification. If the nut becomes loose, brake fluid may leak. This in turn can result in the vehicle requiring a longer braking distance, increasing the risk of a crash.

 

Are there any precautions I should take because my vehicle is part of Safety Recall 19Q4?

Vehicle driver may see the brake warning light illuminate just after significant brake fluid loss. If this happens, owners are advised to contact an authorized VolkswageneBay dealer without delay to make arrangements to have the vehicle inspected/repaired.

 

What is the repair for Safety Recall 19Q4?

To correct this defect, your authorized VolkswageneBay dealer will Inspect and, if necessary, torque the affected nut to the proper value.

 

When will the repair for Safety Recall 19Q4 be available?

Repairs for this recall have begun. Please contact your authorized VolkswageneBay dealer without delay to schedule this recall repair. To set up an appointment online, please visit www.vw.com/find-a-dealer.


Chronology :

September 21, 2021: first vehicles detected with potentially incorrect tightened nut. Internal analysis process started.

September 21 – October 10, 2021: Intensive analysis conducted in order to identify root cause, in depth factory process analysis carried out and more vehicles have been checked.

October 12, 2021: Topic was presented at VolkswageneBay de Mexico’s pre product safety committee. Further details requested including a risk analysis.

October 21, 2021: Topic was presented at VolkswageneBay de Mexico’s product safety committee for recommendation.

October 27, 2021: Topic was jointly discussed at VolkswageneBay de Mexico’s and VolkswageneBay AG’s product safety committee and a recall was decided.

 


1 Affected Product

Vehicle

MAKEMODELYEAR
VOLKSWAGENeBayTIGUAN2022

 


10 Associated Documents

ISSUED Owner Notification Letter(Part 577)

RCONL-21V853-5937.pdf 273.146KB

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ISSUED Owner Notification Letter(Part 577) – 19Q4 Customer Letter PRI

RCONL-21V853-2948.pdf 540.889KB

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Manufacturer Notices(to Dealers,etc) – VOLKSWAGENeBay Date: November 15, 2021 Repair Available Safety Recall 19Q4 / Right Front Brake Pipe Nut

RCMN-21V853-3986.pdf 713.097KB

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19Q4 Recall FAQ_12012021

RMISC-21V853-3387.pdf 390.695KB

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Defect Notice 573 Report

RCLRPT-21V853-5780.PDF 215.466KB

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Recall Acknowledgement

RCAK-21V853-1859.pdf 645.237KB

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Remedy Instructions and TSB

RCRIT-21V853-2529.pdf 802.122KB

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Recall Quarterly Report #1, 2021-4

RCLQRT-21V853-5223.PDF 211.145KB

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Recall Quarterly Report #3, 2022-2

RCLQRT-21V853-5589.PDF 211.336KB

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Recall Quarterly Report #4, 2022-3

RCLQRT-21V853-0910.PDF 211.438KB

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