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:

    Safety
    The R-Class received a Good overall score — the highest rating possible — in the Insurance Institute for Highway Safety's frontal-offset and side-impact crash tests. It hadn't yet undergone IIHS' ...

    Notes
    The vehicle tool kit can be found in the stowage well under the cargo compartment floor. Vehicles are not equipped with the tools needed to change a wheel when they leave the factory, e.g. jac ...

    Load bearing index
    The load bearing index (also load index) is a code that contains the maximum load bearing capacity of a tire. ...