Dome light only comes on when i open the pass. side door.Steve's reply was an [open diod in the seat belt modual.I do not know where the seat belt modual is.Can someone help an electronicly chalanged person and tell me where this modual is,what it looks like and how to fix it? Help here would be greatly appreciated. Thanks

Follow Steve's diagnosis...even though you don't understand, it is probably spot on.

I don't know if the search function is fully restored, if it is doing a search on "diode" or "faulty seat belt module" should bring up a number of posts. Some may even have a how-to repair or how-to replace diodes at home.

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Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

'02 CLK320 Cabriolet - wifey's mid-life crisis

2012 VW Jetta Sportwagon TDI...at least its a diesel

Non illegitemae carborundum.

Yes, the seatbelt warning relay is at fault. It's a small black relay, about 1" by 2". Part number 004-545-07-32. On your car, I believe it's located above the brake pedal.

Thanks guys,i will look for it tomorrow.

I just unpluged the seat belt warning relay,and the dome light still comes on on the pass. side.Am i barking up the wrong tree?

The reason the left side don't work is often the circuit as it passes through the seat belt module is open. The passenger side light switch goes straight to the light. Pulling the module has no effect on the right side but makes sure the left side don't work.

Look at the wiring diagram and follow the door switch circuit for the left side. The reason this all happens is they use the same switch for two different circuits: dome light and seat belt warning.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician

Thanks Steve.BTW We all love when you reply to one of our posts,but in my case and i think in some other cases, your knowlage is so far behond ours that i think it is difficult for you to explain the reason for or the actual fix of a problem.What i am trying to say is that if i say i do not understand your reply please don't get offended it is because i am a mechanical person and NOT an electrical one.And please do not stop replying to any of my posts,just think [420 benz somewhat chalanged] Thanks Again

420, I found an extra (used) relay in my garage. Let me know if you're interested.

SPEEDY: I ordered one from Fastlane. Just a little too late but thanks anyway.

One thing you should remember, a suggestion such as mine in this post is based on experience and should be be verified with testing.

I am strongly opposed to repairs by statistical probability. I do use probability to try and start close to the answer. No sense wasting time (bg).

__________________
Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician