See also:

Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the SmartKey, use the mechanical key. Open the driver's door. Close the front-passenger door, the rear doors and the trunk lid. Press the locking ...

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 ...

Please bear the following in mind
At the onset of winter, have your vehicle winterproofed at a qualified specialist workshop, e.g. at an authorized Mercedes- Benz Center. Observe the notes in the "Changing a wheel" ...