Passenger side Heated mirror not working
Thread Starter
Newbie
Joined: Nov 2013
Posts: 13
Likes: 0
2007 Merc c230
Passenger side Heated mirror not working
Hello
I recentely noticed the passenger side mirror heating is not working. I am able to adjust the mirror from inside, but the heat function is not working. Is there a fuse that i can check or the heating element needs to be replaced. I hooked the veh to the star diagnostics, but didnt find anything.
Help!!
I recentely noticed the passenger side mirror heating is not working. I am able to adjust the mirror from inside, but the heat function is not working. Is there a fuse that i can check or the heating element needs to be replaced. I hooked the veh to the star diagnostics, but didnt find anything.
Help!!
Newbie
Joined: Nov 2013
Posts: 3
Likes: 0
From: Montreal, Quebec
C320 2005, Lexus SC430 2004
I have the exact same problem on a 2005 C320...
All fuses are ok,
Continuity of the mirror heater is ok,
Continuity of the mirror heater wires ok,
Power supply to the door module is ok...
No power out to the mirror heater connector, so I suspect the door module to be faulty...
I purchased a used "door module" to see if this fixes the problem.
Will post results soon.
All fuses are ok,
Continuity of the mirror heater is ok,
Continuity of the mirror heater wires ok,
Power supply to the door module is ok...
No power out to the mirror heater connector, so I suspect the door module to be faulty...
I purchased a used "door module" to see if this fixes the problem.
Will post results soon.
Super Member
Joined: Oct 2013
Posts: 527
Likes: 20
From: Carolinas
2005 C230K SS
My passenger mirror heater doesn't work either, all other door/mirror functions are ok incl reverse tilt....it's too warm now to troubleshoot, the mirror heater is controlled automatically depending on outside temps. I'll probably replace it before the next winter season, coz I doubt it's the door module. The pass. side mirror is not auto dimming and can be had brand new for under $100 (oem)
Super Member
Joined: Aug 2007
Posts: 876
Likes: 81
From: Phoenix AZ & Cayucos CA
’27 AMG SL55(ordered), ‘23 EQS 580 SUV, ‘19 AMG E53 Cpe, ‘48 Willys Jeepster
My mirror heaters seem to be inconsistent, but I figure that it's energy management trying to level the load on the electrical system during cold starts.
Super Member
Joined: Oct 2013
Posts: 527
Likes: 20
From: Carolinas
2005 C230K SS
Both mirror heaters are on the same fuse...if one side works, then it's not the fuse. The fuse is 21 or 22 iirc located on the dash fuse box.
