Audi is recalling 28,624 model year 1998 A8s and model year 1997-1998 A4s equipped with Non-Azide Driver airbag Inflators (NADI) that do not contain phase stabilized ammonium nitrate (PSAN) propellant.
The NADI inflator may absorb moisture because of a manufacturing issue.
As a result, the inflator could explode during airbag deployment with metal fragments striking the driver or other occupants.
Additionally, an underinflated airbag may not protect the occupant properly.
In either case an occupant could be injured or killed.
What to do
Dealers will replace the driver's airbag inflator with an inflator of a different design free of charge.
Owner notification letters were sent September 21, 2021.
The vehicles in this recall were mistakenly omitted from a recall issued in 2020.
These owners have already been notified by mail and informed that the remedy is available.
Owners may contact Audi customer service at (800) 253-2834. Audi's number for the current recall is 69BT.