Air Bag Light Came On For No Apparant Reason? - BMW Forum - BimmerWerkz.com
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#1 (permalink) Old 03-19-2005, 08:22 PM
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Hi All,

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?

Much appreciated!
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#2 (permalink) Old 03-19-2005, 08:28 PM
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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.
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#3 (permalink) Old 03-19-2005, 09:33 PM
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Going over the manual I came across this statement: "the airbag indicator lamp also comes on if the safety belt tensioners have been triggered."

It probably is a problem with the seat belts/tensioners. Is there a way to fix this without going to the dealership?

Thanks!
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#4 (permalink) Old 03-20-2005, 01:37 PM
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You can replace the seatbelts yourself IF that is indeed the problem however you will not be able to clear the airbag lamp. You need a diagnostic tool to do that.
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#5 (permalink) Old 03-20-2005, 02:28 PM
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I had this problem a couple of weeks ago, took it to the dealership and they changed the wiring harnesses.

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#6 (permalink) Old 03-20-2005, 02:33 PM
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[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.

http://www.bimmerzone.com/
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#7 (permalink) Old 03-24-2005, 10:38 AM
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Took it to the dealership 3 days ago .. turned out to be a seatbelt sensor that went bad. Was covered by the warranty though so no worries
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