Audi S4 Recalls
The passenger frontal air bag assembly is deployed by an inflator which contains propellant that makes the air bag deploy. This propellant may degrade over time, especially when exposed to humidity and temperature cycling. As a result, the inflator may rupture on deployment, which can send metal shrapnel through the air bag, striking vehicle occupants. This could result in serious injury or death.
A fuel leak may develop in the engine compartment.
In a crash where the first impact deploys the side air bags and a second impact occurs in the front of the vehicle, the front air bags may not deploy.