See also:

Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the SmartKey, use the mechanical key. •► Open the driver's door.•► Close the front-passenger door, the rear doors and the trunk lid/tailgat ...

Dashboard fuse box
Do not use a pointed object such as a screwdriver to open the cover in the dashboard. You could damage the dashboard or the cover. – To open: pull cover 1 outwards in the direction of ...

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 ...