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:

    Vehicles with a "Minispare" emergency spare wheel
    – Lift the trunk floor up. – Remove the "Minispare" emergency spare wheel. Example: vehicles with AIRMATIC and trailer tow hitch 1 Folding wheel chock 2 Lug wrench 3 Alignment b ...

    Hiding a service message
    X Press the % or a button on the steering wheel. ...

    Call priority
    When service calls are active, e.g. Roadside Assistance or MB Info calls, an emergency call can still be initiated. In this case, an emergency call will take priority and override all other ac ...