Mirror Drifting Solution (Memory Power Mirrors)
I have had this problem in my car as well. During my recent B-Service, I brought up this issue. The service advisor knew of a service advisory on this, and they ran a "power mirror function test" and confirmed my mirrors were "losing memory."
I wasn't able to get the service advisory, or "campaign" number, but they did replace two mirror "control units," or electronic modules, one in each door. The part numbers for my C320 Sedan were 203-820-15-85, and 203-820-14-85.
If you are experiencing similar symptoms, just mention "Mirror Drifting" in your service request and these part numbers. They should be able to trace back from the part numbers to the service advisory.



