See also:

Increased vehicle weight due to optional equipment
This is the combined weight of all standard and optional equipment available for the vehicle, regardless of whether it is actually installed on the vehicle or not. ...

Important safety notes
See the "Important safety notes" section. If ESP® detects that the vehicle is deviating from the direction desired by the driver, one or more wheels are braked to stabilize the veh ...

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" sec ...