See also:

Notes on driving
- If the vehicle is heavily laden, check the tire pressures and correct them if necessary. - When parking your vehicle, make sure that the tires do not get deformed by the curb or other obstacl ...

Removing the ball coupling
Observe the manufacturer's installation instructions. Press the protective cap into the ball coupling recess. Make sure that the protective cap is firmly in place. ...

Please bear the following in mind
At the onset of winter, have your vehicle winterproofed at a qualified specialist workshop, e.g. at an authorized Mercedes- Benz Center. Observe the notes in the "Changing a wheel" ...