3-Series (E46, E90)Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.
I got a 2001 325i recently and all seems fine. But tonite when I went to drive it, as soon as I turned the car on the air bag light in the dashboard came on. I have no idea what triggered it. I drove it earlier today without problems. It just stays on for some reason and it wont go away. Has anyone seen this before? What might have caused this and whats the potential problems this raises?
Any fault in the airbag system will cause the light to go on. One very common cause is faulty seat belt receptacles. Others being seat occupancy mats, wiring, module, or the airbags themselves.
Because it is such a huge safety issue I'd recommend getting it to a professional mechanic ASAP.
[It could be something as simple as the seatbelt recpticle, however it could be more serious and prevent deployment of the airbags if it is more critical.
As everyone else has said you should probably consult your mechanic.
The link below has fault code readers and reset tools if you want to check it yourself.
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