See also:

Locking the vehicle
If the vehicle can no longer be locked with the SmartKey, you can lock it by taking the following steps. If the central locking in the vehicle is malfunctioning, you cannot lock the trunk. P ...

Activating the rear view camera
Make sure that the SmartKey is in position 2 in the ignition lock. Make sure that the "rear view camera" function is selected in COMAND (see the separate operating instructions for C ...

Important safety notes
WARNING Severe conditions (e.g. strong air pollution) may require replacement of the filter before its scheduled replacement interval. A clogged filter will reduce the air volume to the inter ...