My air bag light is still on after an inexperienced indy mechanic replaced a window regulator. If the air bag is cannot be disconnected with the battery hooked up. I've been told only the dealer can reset the air bag light. I've had three shops with 'good bmw style' computers try, each time the light came back on. Either they don't know how, or there is a dealer specific code. A member wrote a similar post 5 years ago, now I have the same problem...even after explaining to the mechanic not to disable the airbag. Next time my car goes to the dealer, I'll get it reset. Not going to make a special trip. It's just another BMW gremlin to deal with. They must stay up nights dreaming up these things.