System Operation Check
WARNING: This page is about a different car, the 2004 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
Turn ignition switch to ON position. AIR BAG warning light should illuminate for 6-10 seconds then turn off. If AIR BAG warning light illuminates for 6-10 seconds and turns off, then illuminates again or remains illuminated, a fault in air bag system has been detected. If AIR BAG warning light illuminates while operating the vehicle, fault in air bag system has been detected. If AIR BAG warning light fails to illuminate, this indicates bulb or wiring is faulty.