I know this is an old thread but here's hoping someone may be able to help!
RHD 2008 W211 (facelift) E280
Passenger mirror lost horizontal control then three months later lost vertical control.
Indicator repeater, heating and fold still work fine.
Suspected wiring so decided to have a look and troubleshoot to find if it was the wiring, the motor or the control module/ switch.
Once off there were no obvious breaks - loom with two connectors to the door module one 10 block black with all black wires and one white 6 or 8 block but with only 2 connectors attached.
At the mirror the main loom came in and split with one side going behind the pivot I assume to the fold motor.
The other led to two spade attachments to the mirror heating, a black two pin connector for the indicator, a black 3pin connector to the motor and 2 wires to a white connector in a housing but not connected to anything.
Hope you're with me so far!
I tried a continuity test on the wires but couldn't get any successful result. Then thought of trying the motor on the drivers side mirror but when that was checked it was completely different ! The glass was much thicker, the two pin white connectors attached to the glass as well as the heating ones and the motor connector was a square block with at least six wires as opposed to a flat 3 pin connector on the left. So unable to check motor function!
So should I try a new motor or try a new mirror from a breaker perhaps or is it maybe the door module?
Any help or pointers would be massively helpful thanks!