The windshield wipers are inoperative

The windshield wiper drive is malfunctioning.

combination switch. Select another wiper speed on the combination switch.

qualified specialist workshop. Have the windshield wipers checked at a qualified specialist workshop.

    See also:

    Problems with your vehicle
    If you should experience a problem with your vehicle, particularly one that you believe may affect its safe operation, we urge you to contact an authorized Mercedes-Benz Center immediately to h ...

    Wet roads
    WARNING After driving in heavy rain for some time without applying the brakes or through water deep enough to wet brake components, the first braking action may be somewhat reduced. You hav ...

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