had a strange one yesterday.was travelling along around 50mph when a woman driver pulled out in front of me requiring emergency braking.as I came to a stop,without hitting her,i got a loud bong plus airbag light plus a message on screen saying restraint system faulty,pretensioners not working and airbag light.could any of you guys help with a possible diagnosis before my local bmw dealer charges me £120 for a diagnosis.thanks in advance for any help
My guess is you may have popped the battery safety terminal on your positive cable. Without a code you won’t know for sure. I got a 9AFF code which turned out to be a low battery in the end.
Only way to know what popped is to read the airbag module codes. You may have blown the seat belt tensioners.
ASE and BMW Master Certified Technician
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