The vehicle centre of gravity and the usual driving characteristics as well as the steering and braking characteristics alter.
If you exceed the maximum roof load, the driving characteristics, as well as steering and braking, will be greatly impaired.
You can find information on the maximum roof load under "Lashing points and carrier systems" More.
If the weight of the roof luggage, including the roof luggage rack, exceeds the maximum permissible roof load, this can cause damage to the vehicle.
An excessively high tightening torque or an insufficient screw-in depth can cause damage to the thread of the roof luggage rack's threaded holes.
Use roof and rear luggage racks that have been approved or recommended for Mercedes-Benz. These help to prevent vehicle damage.
You can install a roof luggage rack on the roof and, for example, a rear bicycle rack on the tailgate.
Install the cover caps of the securing thread after removing the roof luggage rack.
If you have installed a rear luggage rack on the tailgate, the additional weight restricts the assistance offered by the pneumatic springs when you open the tailgate. You will then need more force to open the tailgate. At low outside temperatures below freezing point, you should provide additional support for the tailgate after opening it in order to prevent it from lowering unintentionally.