I have a 1994 C280, and I'm having what appears to be massive electrical failures on a grand scale.
About 4 years ago the trunk was flooded (thanks to a leak in the seal, and the drain being clogged with paper). Everything was soaked, completely. Since then, the airbag light will not go off, the car has lots of trouble starting, the feature that rolls up the windows when locking the car from outside has ceased. After about a year of just ignoring all this, the real problems occurred. I was in the trunk investigating, when I found this really important looking relay mounted next to the battery. Turns out, it's the convenience relay, and it was covered in corrossion and bits from the flooding. The windows worked at this point... I disconnected all cables from the wiring harness and took the part out of the car. I removed the cover and cleaned it completely with electronics parts cleaner, as it looked like it really needed it. Then, I re-inserted all of the wiring and put it back together. Now, my windows will roll down, but will not roll back up unless I bang on this relay while someone else holds the switch. I've tried removing the wiring and using di-electric connector protector which helped none. Now, the front windows will not move at all. The rears continue to go down, but not up. Shortly after this, my windshield washer quit spraying. Not to mention sometimes the delay on the wiper works, sometimes it doesn't.
If perhaps ANYONE could have any idea what to do about all this, without saying "replace car," I'd be very much obliged!
About 4 years ago the trunk was flooded (thanks to a leak in the seal, and the drain being clogged with paper). Everything was soaked, completely. Since then, the airbag light will not go off, the car has lots of trouble starting, the feature that rolls up the windows when locking the car from outside has ceased. After about a year of just ignoring all this, the real problems occurred. I was in the trunk investigating, when I found this really important looking relay mounted next to the battery. Turns out, it's the convenience relay, and it was covered in corrossion and bits from the flooding. The windows worked at this point... I disconnected all cables from the wiring harness and took the part out of the car. I removed the cover and cleaned it completely with electronics parts cleaner, as it looked like it really needed it. Then, I re-inserted all of the wiring and put it back together. Now, my windows will roll down, but will not roll back up unless I bang on this relay while someone else holds the switch. I've tried removing the wiring and using di-electric connector protector which helped none. Now, the front windows will not move at all. The rears continue to go down, but not up. Shortly after this, my windshield washer quit spraying. Not to mention sometimes the delay on the wiper works, sometimes it doesn't.
If perhaps ANYONE could have any idea what to do about all this, without saying "replace car," I'd be very much obliged!
