Auto Dim Mirror Glass Testing

Page may contain affiliate links. Please see terms for details.


MB Enthusiast
Feb 1, 2015
South Manchester
CLK 220 CDI Sport 2009
My door mirror has stopped auto dimming, the interior mirror works fine and no sign of the usual colour change of a failed door mirror glass. Before I start stripping the door to check for broken wires Etc I want to test the mirror glass to eliminate it as being faulty. Can I just apply 12v to it as a test, or would that just destroy it. They are a bit expensive to be playing about with. If they were £20.00 I would just buy one to try it. Every other function of the mirror works fine.
Only the drivers mirror dims.
Just checking 👍🏻👍🏻😀😀
Yes I know about that, just need to find out how to test the glass.
  • Like
Reactions: Ted

Users who are viewing this thread

Top Bottom