See also:

Changing the battery
You require a CR 2025 3 V cell battery. Take the mechanical key out of the SmartKey. Press mechanical key 2 into the opening in the SmartKey in the direction of the arrow until battery tra ...

Attaching the roof carrier
► Secure the roof carrier to roof rails 1. ► Observe the manufacturer's installation instructions. ...

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. ...