See also:

Adding DEF
WARNING Make sure • DEF does not come into contact with skin, eyes, or clothing • to keep DEF out of the reach of children If you and/or others have come into contact with DEF: • If DEF ...

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. ...

Connecting an external device
Do not leave external devices in the vehicle as extreme temperatures (e.g. direct sunlight or extremely low outside temperatures) could cause them to malfunction (see the operating instructions ...