See also:

Cleaning the rear view camera
Use clear water and a soft cloth to clean camera lens 1. Do not clean the camera lens and the area around the rear view camera with a power washer. ...

Attaching the roof carrier
Secure the roof carrier to the roof rails. Observe the manufacturer's installation instructions. ...

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 ...