See also:

Activating the rear view camera
Make sure that the SmartKey is in position 2 in the ignition lock. Engage reverse gear. The area behind the vehicle is shown in the COMAND display with guide lines. ...

Cleaning the wheels
Do not use acidic wheel cleaning products to remove brake dust. This could damage wheel bolts and brake components. Do not park the vehicle for an extended period straight after clean ...

Checking tire pressure electronically
– Make sure that the SmartKey is in position 2 in the ignition lock. – Press the or button on the steering wheel to select the Serv. menu. – Press the or button to select Tire Pressure. ...