See also:

Charging the battery
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 explosions ...

Using KEYLESS-GO
The KEYLESS-GO key must be outside the vehicle. All the doors must be closed. Touch recessed sensor surface 1 on the door handle until the side windows and the sliding sunroof or the panor ...

Side impact air bags
WARNING The pressure sensors for side impact air bag control are located in the doors. Do not modify any components of the doors or door trim panels including, for example, the addition of ...