I have a 1991 W124 estate, that has been sitting for some time.
The front passenger window motor is permanently running in the up direction, I have checked the wires in the door and they are permanently live. I have removed the console switch, but this has made no difference and checked the relay under the bonnet, which seems fine as the other three windows and sunroof operate correctly. Decided to try and find the comfort module.
Found it!
Had to cut a hole in the carpet under the rear seat squab though.
Relay #6 keeps locking up in a closed position, all the others working fine. If I wedge it open, then the switch works to open the window, but if I manually close relay #6, then it also blows a fuse. I have checked the earth wire to the motor for continuity and it is fine, so I guess this module must be faulty, doesn't look cheap to me and I suppose it's not repairable, (If I knew where/what the fault was in the first place!)
I don't suppose there is any way to test it before replacing it?
The front passenger window motor is permanently running in the up direction, I have checked the wires in the door and they are permanently live. I have removed the console switch, but this has made no difference and checked the relay under the bonnet, which seems fine as the other three windows and sunroof operate correctly. Decided to try and find the comfort module.
Found it!
Had to cut a hole in the carpet under the rear seat squab though.
Relay #6 keeps locking up in a closed position, all the others working fine. If I wedge it open, then the switch works to open the window, but if I manually close relay #6, then it also blows a fuse. I have checked the earth wire to the motor for continuity and it is fine, so I guess this module must be faulty, doesn't look cheap to me and I suppose it's not repairable, (If I knew where/what the fault was in the first place!)
I don't suppose there is any way to test it before replacing it?