My rear wiper has never worked in my 2004 A3 8p. I decided it was time to try and fix it...
I can hear the relay behind the dash when I activate the steering column switch.
I took the rear trim out in the boot to reveal the motor. Used my ball joint splitter to remove the actual wiper arm.
I decided to remove the cover from the actual motor, and it completely seized up!!! I think this is the classic snapped washer pipe leaking into the mechanism. Conclusion; replacement motor needed.
I tried checking the plug that went into the motor with a multimeter. There are 4 connectors, and I can detect 12V on a number of them. Does anyone know what each colour wire does in this part of the loom so that I check the problem is definately with the motor? Or a full wiring diagram that I can work out?
I mangaged to get hold of a newer rear wiper motor from a friend who was breaking a 2011 A1.
This physically fits into the car, looks identical, and also has 4 connectors that are labelled the same on the motor. However the motor does not work when plugged into the car. Any advice on how to check this motor works by hooking it up to a spare 12V battery I have lying around?
Should this A1 rear wiper motor work? Or am I fighting a loosing battle...
Any help appreciated, Rich