Three problems related to air bag light on have been reported for the 2007 BMW 3 Series. The most recently reported issues are listed below.
When turn in on the car the air bag light and seat belt light when on at the same time.
For over a year now the airbag light on the dashboard has been going on and off. Originally, it was only turning on when I had a passenger in the front seat. Now it turns on with or without a person so I'm starting to think that the drivers side is malfunctioning too. In additional the seatbelt light is turning on too now. This is very frustrating. I talked to the dealership and they indicated that it is the airbag and seat sensors that have malfunctioned. Each to fix is over $500. They also indicated that this is a common problem for owners and to wait for a supposably recall letter. However, that was a year ago and I now have the airbag and seatbelt light going off. I've also come across many BMW forums (owners) talking about their frustration with these same issues. It's surprising that the dealerships acknowledge the issue but yet nothing is being resolved. There has to be a remedy for this annoyance and lack of acknowledgement by BMW. If anything there has to be some repercussions on BMW's part since the consumers are having to deal with these problem for what seems to be years now.
Front passenger seat occupant detection mat. My 2007 BMW 328xi airbag light came on so I took it to the dealer and they told me there was a recall on my model car from 2006 up, but that my VIN# is not part of that recall even though all symptom and issue was the same. I think this should be included as the sensor mat is the same issue as noted in this recall us NHTSA campaign id:13v564000.