See also:

Cleaning the rear view camera
Cleaning the rear view camera   Use clear water and a soft cloth to clean camera lens 1. Do not clean the camera lens and the area around the rear view camera with a power washer. ...

Switching the rear-compartment climate control on/off using the front control panel
Turn the SmartKey to position 2 in the ignition lock. Activate the rear compartment function via COMAND. The rear-compartment climate control can be controlled via the front control panel ...

Checking the oil level using the oil dipstick
Park the vehicle on a level surface. To check the oil level with the engine at normal operating temperature, switch the engine off and wait for approximately five minutes. Pull oil dipst ...