2000–2002 Audi A4, 2000–2002 Audi S4, 2000–2001 Audi TT Recall: Due to a manufacturing issue, the NADI inflators may absorb moisture…
NHTSA campaign 21V470000 · Air Bags · filed Jun 23, 2021 · verified Jul 30, 2026
The defect
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2000-2001 Audi TT Coupe, TT Roadster, 2000-2002 A4, and S4 vehicles equipped with Non-Azide Driver Air Bag Inflators (NADI) that do not contain phase stabilized ammonium nitrate (PSAN) propellant. Due to a manufacturing issue, the NADI inflators may absorb moisture, possibly causing the air bag to deploy improperly in the event of a crash.
The risk
In the event of a crash necessitating air bag deployment, the air bag may not properly protect the occupant, increasing the risk of serious injury or death.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
Dealers will replace the driver frontal airbag inflator with an alternative inflator, free of charge. Owner notification letters were mailed November 2, 2021. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 69CJ.
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.
Affected vehicles
Related recalls
More Audi A4 recalls
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- 1997–1998 Audi A4 and 1 other model — Due to a manufacturing issue, the NADI inflator may absorb…
- 2022 Audi A4 and 2 other models — Semiconductor inside the engine control unit may…
- 2020–2021 Audi A4 and 22 other models — Rear axle alignment may not have been inspected after the…
Other campaigns involving Audi vehicles
Source: NHTSA recall database, campaign 21V470000 (manufacturer number 69CJ). Data last verified Jul 30, 2026.