2007 Mercedes GL-Class Owner's Manual - Page 213

Controls in detail Good visibility Synchronizing exterior rear view mirrors The power folding rear view mirrors may have to be synchronized after the vehicle battery has been disconnected or discharged. If the exterior rear view mirrors do not fold properly upon locking or unlocking the vehicle although the corresponding function in the control system is activated ( page 185), do the following: Fold each exterior rear view mirror in completely ( page 212). Fold each exterior rear view mirror out completely ( page 212). When the exterior rear view mirrors fold properly upon locking the vehicle, the exterior mirrors are synchronized. Otherwise repeat the above steps. 1 Button for folding exterior rear view mirrors in and out Switch on the ignition ( page 42). Folding the exterior rear view mirrors in and out manually Folding in Briefly press button 1. Both exterior rear view mirrors fold in. i The exterior rear view mirrors can vibrate if they are not folded out completely. The button is located on the door control panel. i If you are driving at more than approximately 30 mph (47 km/h), you will not be able to fold the exterior mirrors in. Folding out Briefly press button 1 again. Both exterior rear view mirrors fold out. ! If an exterior rear view mirror housing is forcibly pushed forward (hit from the rear) or forcibly pushed rearward (hit from the front) press button 1 to fold mirrors in, then press button 1 again to fold mirrors out. Do not force mirrors by hand as this may damage the adjustment mechanism. The mirror housing is then properly positioned and you can adjust the mirror in the usual manner. Please make sure both rear view mirrors are folded out before driving off. 212