See also:

Assembling the ball coupling
Mercedes-Benz recommends that you have the ball coupling assembled at a qualified specialist workshop. Only a qualified specialist workshop has the necessary specialist knowledge and tool ...

Total load limit
Rated cargo and luggage load plus 68 kilograms (150 lbs) times the vehicle's designated seating capacity. ...

Problems with the sliding sunroof
Problem: the sunroof cannot be closed and you cannot see the cause. WARNING   You could be severely or even fatally injured when closing the sliding sunroof with increased closing force ...