See also:

Requirements
Via the Control Display, set a language that is also supported by the voice activation system so that the spoken commands can be identified. Set the language. ...

Switching on/off manually
Press the button. On: the LED lights up. Off: the LED goes out. The PDC is shown on the Control Display. Switch on the backup camera via the iDrive. ...

Camera
Camera The lens of the rear view camera is under the grasping lip of the tailgate. The presence of dirt can impair image quality. Clean the lens with a moist, nonabrasive cloth. ...