See also:

Showing the distance display
This function is only available with DISTRONIC PLUS. Press the or button on the steering wheel to select the DriveAssist menu. Press the or button to select Distance Display. Pre ...

Trailer towing
PARKTRONIC is deactivated for the rear area when you establish an electrical connection between your vehicle and a trailer. Fold in the ball coupling if the trailer tow hitch is not required. ...

System self-test
After you have switched on the ignition, the system carries out a self-diagnosis. WARNING A malfunction in the system has been detected if one of the following conditions occurs:  - ...