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 tha ...

Activating/deactivating ATTENTION ASSIST
Press the or button on the steering wheel to select the DriveAssist menu. Press the or button to select Attention Asst.. Press . The current selection is displayed. To activate/ ...

PRE-SAFE® (preventative occupant protection)
WARNING The PRE-SAFE® system reduces the impact of an accident on vehicle occupants, as long as their seat belts have been fastened correctly. Although your vehicle is equipped with a PRESAFE ...