See also:

Important safety notes
Do not leave the SmartKey in the cargo compartment. You could otherwise lock yourself out. WARNING When leaving the vehicle, always remove the SmartKey from the ignition lock. Always take t ...

Deactivating
Press and hold the closing button () in the tailgate until you hear two short tones. ...

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. ...