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" section
See also:
Suspension: selective damping as standard
The standard steel suspension of the Mercedes-Benz CLS-Class is equipped with
a selective damping system. The shock absorbers adapt to the given driving
situation, reducing the damping forces auto ...
Capacities
...
Snow chains
For safety reasons, Mercedes-Benz
recommends that you only use snow chains
which have been specially approved for your
vehicle by Mercedes-Benz, or are of a
corresponding standard of quality.
...