See also:

Resuming cruising speed
Press button 4: The stored speed is resumed and maintained ...

Switching on automatically
With the engine running or the ignition switched on, shift the selector lever into position R. The image of the rear view camera is displayed when the system has been switched on using iDrive. ...

Camera
Camera The camera is located near the base of the mirror. Keep windshield clean and clear in the area in front of the interior rear view mirror. ...