See also:

Accepting a call
If someone calls you when you are in the Tel menu, a display message appears in the multifunction display, for example: Press the button on the steering wheel to accept an incoming call. ...

Storing wheels
Store wheels that are not being used in a cool, dry and preferably dark place. Protect the tires from oil, grease, gasoline and diesel. ...

Charging the batter
WARNING   Never charge a battery still installed in the vehicle unless a battery charger unit approved by Mercedes-Benz is being used. Gases may escape during charging and cause explosio ...