See also:

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. ...

Cleaning the wheels
Do not use acidic wheel cleaning products to remove brake dust. This could damage wheel bolts and brake components. Do not park the vehicle for an extended period straight after cleaning it, ...

Useful information
This Operator's Manual describes all models and all standard and optional equipment of your vehicle available at the time of publication of the Operator's Manual. Country-specific differences ...