When you place a load on the roof as well as all outer and inner attachments, the vehicle's centre of gravity will rise and the familiar driving characteristics as well as the steering and braking characteristics will change. When driving around bends, the vehicle will tilt more heavily and may react more sluggishly to steering movements.
If you exceed the maximum roof load, the driving characteristics, as well as the steering and braking, will be greatly impaired.
Information about the maximum roof load can be found in the "Technical data" section More.
Tighten the roof rack's screws to a torque of 8 Nm – 10 Nm in the designated grooved plates.
The tightened screws should not touch the rails.
Ensure that the grooved plates are not located in the areas around the plastic caps.
The grooved plates must have the right cross-section.
The insides of the mounting rails must be free of dirt.
Re-tighten the screws uniformly after around 500 km.
Mercedes-Benz recommends that you use only roof racks that have been tested and approved for Mercedes-Benz . These help to prevent vehicle damage.
If you want to retrofit the mounting rails, have them installed at a qualified specialist workshop. Otherwise, you could damage the vehicle.
If your vehicle is fitted with mounting rails on the roof, you can install a roof rack on the roof. Special fasteners (sliding blocks) are available as accessories for this purpose.
These fasteners are available from any Mercedes-Benz Service Centre.