THe air bag light just showed up on my '04 225. My code reader does not even see the code, let alone allow me to reset it.

Am I destined to see the dealer?

 

90% of the time, its coming from under the drivers seat. Mine did it once and went away the following day

 

Can it be reset with a code reader, or something else I should own?

 

That i dont know 100%. You can try by pulling the battery, but if nothing is wrong, it will go away in about a day

 

Thanks Cincy!
I did have someone else drive the car for me last week and I had to readust seat height. Realted?

 

related?

 

It could be. Like i said, it seems most of the time the airbags from the seat is what sets off the light and will go away after a short period of time.

 

Its a common problem. Expect it to come back in colder weather. After a while you'll need to have the air bag control module replaced @ $900 by the dealer.

 

Buy a vagcom. Then you know to spend $400 or $650.

I had the same thing a few months ago (model year 2002)

I ended up having to replace the passenger front airbag itself. The code was passenger side ignitor faulty or something like that.

$400 from airbagcenter.com

It's a major pain tho.

If it does end up being the module, it's $650 from ecstuning.com. Just pull the old one out and do a search on their site for the big number printed on the top of the module.