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:

    Exterior
    This distinctive SUV's strictly utilitarian appearance is somewhat softened by body-colored bumpers and rocker panels, plus a stainless steel spare-tire cover. New 18-inch twin five-spoke wheels ...

    Cleaning the steering wheel and gear orselector lever
    ► Thoroughly wipe with a damp cloth or use leather care agents that have been recommended and approved by Mercedes- Benz. ...

    Centrally locking and unlocking the vehicle from the inside
    You can centrally lock or unlock the vehicle from the inside. The central locking/unlocking button does not lock or unlock the fuel filler flap. You cannot unlock the vehicle centrally from the ...