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. ...

Important notes on tire pressure
WARNING   If the tire pressure drops repeatedly, check the tires for punctures from foreign objects and/or whether air is leaking from the valves or from around the rim. The tire temper ...

Calling up a stored setting
If you want to move the seat from the fully reclined position to a stored seat position, first raise the backrest. The seat could otherwise be damaged. Press and hold the relevant storage ...