Had the same problem with mine. Replaced the "brain" in the driver's door and the main module in the console, but neither fixed the problem. Mercedes dealer finally traced the problem to one of the rear window motors. That motor still worked, but apparently had a defect that caused the front windows and outside mirrors not to work somehow. We disconnected the defective rear window motor and the front windows and mirrors work fine now. I have purchased a replacement motor for the rear window, but have not yet installed it since we rarely use that window and replacing the motor is not a trivial exercise.