See also:

Important safety notes
WARNING When leaving the vehicle, always remove the SmartKey from the ignition lock. Always take the SmartKey with you and lock the vehicle. Do not leave children unattended in the vehicle, ...

Fuse box in the engine compartment
Make sure that the windshield wipers are turned off. WARNING Make sure that the windshield wipers are switched off and that the SmartKey is removed from the ignition lock before you open ...

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. ...