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. ...

Opening
- Switch off the engine. - Remove the SmartKey from the ignition lock. KEYLESS-GO: open the driver’s door. This switches the ignition to position 0, which corresponds to having removed the S ...

Inserting the brackets into the loading rail
– Insert bracket 1 into the center of loading rail 4. – Press release button 2 and push bracket 1 into the desired position in loading rail 4. – Let go of release button 2. – Press lockin ...