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:

    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 ...

    First-aid kit
    Open the tailgate. Remove first-aid kit : from the parcel net. Check the expiration date on the first-aid kit at least once a year. Replace the contents if necessary, and replace mi ...

    Making adjustments in 5 mph (Canada: 10 km/h) increments
    Briefly press the cruise control lever beyond the pressure point, up 1 for a higher speed or down 2 for a lower speed. The last speed stored is increased or reduced. ...