Hi Everyone. I have a 2003 E/320 CDI W211 and am having trouble with the near side Mirror indicator not working! It came up on the Instrument screen stating not working! I have checked the 30 amp fuses that are OK and it will now probably be a Broken Internal Wire! Being as there are so many, can anybody tell me of which colour wire, from I think the Black Connector, operates the indicator light? And will it fail to work if one of the row of bulbs is not working??
Many Thanks
Eddie

 

Many thanks everybody for so many views, but disappointed at No Replies!
I have now found, and fixed the fault by undoing the insulation tape around the loom, and found a grey, and a black wire that had completely snapped, Soldered back together, and it is now working fine!
only thing that doesn’t work, is the up and down tilt on the mirror lense, but not too worried about that, as it is not an MOT failure!!

 

Having similar issue on a 2009 E350 This may help. Thant you.