The windshield wipers are inoperative

The windshield wiper drive is malfunctioning.

the Select another wiper speed on the combination switch.
at a Have the windshield wipers checked at a qualified specialist workshop.

    See also:

    TWR (Tongue Weight Rating)
    The TWR specifies the maximum permissible weight that the ball coupling of the trailer tow hitch can support. ...

    Tow-starting (emergency starting)
    Vehicles with automatic transmission must not be started by tow-starting. This could otherwise damage the transmission. ...

    Roadside Assistance
    The Mercedes-Benz Roadside Assistance Program offers technical help in the event of a breakdown. Calls to the toll-free Roadside Assistance Hotline are answered by our agents 24 hours a day, 3 ...