Drifting mirrors - any solution?
Is anyone aware of a solution to the old problem - memory mirrors drifting off their saved position? It has become my morning routine to press and hold the memory button while the engine warms up - it takes care of the drift, but this is plain ridiculous!
The tech at the dealer where I service my car had no clue (not surprising, as he knew nothing about the very problem, either).
TIA.
Is anyone aware of a solution to the old problem - memory mirrors drifting off their saved position? It has become my morning routine to press and hold the memory button while the engine warms up - it takes care of the drift, but this is plain ridiculous!
The tech at the dealer where I service my car had no clue (not surprising, as he knew nothing about the very problem, either).
TIA.
do you still have the service records? What was the exact description? TIA.
"Door control modules losing memory... perform power mirror function test and found R/F Int losing memory. Remove and replace door panels and replace both Ft door control modules."
Parts #203-820-14-85 and #203-820-15-85
Hope this helps.
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so they are saying the mirrors are supposed to drift...german engineering at its best like the lever on an ice cream machine (from an infiniti radio commercial)
Last edited by YeeHaw; Sep 2, 2005 at 07:06 PM.




There are some faults that Mercedes know about and dont consider it important enough to resolve as the intervention of the owner can easily resolve it.
So the solution from the workshop is to "modify the owners expectations"

I have to push the mirror button to make it go up!!!
My dealer, first reprogramed the mirror and it turned to be ok, but only for 1 day, than it starts not going all up, and after some reverses its all turned down!
I tried to memorize new positions but its the same thing!!!
Now, my dealer says that I have to replace the mirror, but I heard here that could be the memory module in the door, does the dealer can check where is the problem??
I paid for a electric instalation check (CAN readings, etc...) in my last dealer visit, but I don't know if it was relationed to this problem
I was thinking in buying the electric folding mirrors from Steve, this could be a faster way of doing it

But my problem is a little bit different, my memory is still there when I press the memory button, the mirror starts to go up but it doesn't go all up! and sometimes it stay turned down
Its the same with you guys? not what I readed
"Door control modules losing memory... perform power mirror function test and found R/F Int losing memory. Remove and replace door panels and replace both Ft door control modules."
Parts #203-820-14-85 and #203-820-15-85
Hope this helps.
I looked up my service report and here is mine:
L/Outside Mirror keeps drifting - Have to keep resetting.
88-3476 Replace Left Outside Mirror Motor
Parts # 203-820-22-42 Description: Electric Motor
This repair worked great on mine. I had it done in April of 04. However, it has started drifting again. I'll complain again when I bring the car in for service next time (next few months).
My guess is that whatever holds the mirror in place gets weak after awhile.
gaiex, this is just a guess, but it sounds like it could be the mirror motor or the memory module on yours as well. Either way, I'd bring it in and have them check both (I don't have the part number for the "right" mirror motor, but they should be able to find it from the "left" one).
Good luck, and let us know how you make out.



