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" section.

    See also:

    Mounting a new wheel
    WARNING   Always replace wheel bolts that are damaged or rusted. Never apply oil or grease to wheel bolts. Damaged wheel hub threads should be repaired immediately. Do not continue to ...

    Adjusting luxury head restraints
    WARNING When folding back the side cushions, never reach between the side cushion and the mounting post. You could otherwise be trapped. To adjust the side bolsters of the head restra ...

    Mercedes-Benz M-Class Owners Manual
    ...