See also:

Important safety notes
WARNING The DISTRONIC PLUS requires familiarity with its operational characteristics. We strongly recommend that you review the following information carefully before operating the system. ...

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. ...

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 ...