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:

    Low-beam headlamps
    To switch on the low-beam headlamps: turn the SmartKey in the ignition lock to position 2 or start the engine. Turn the light switch to . The indicator lamp in the instrument cluster li ...

    INTERIOR
    It's inside the R-Class where some of those previously mentioned quirks start rearing their ugly heads. The R-Class has an electronic gearshift lever on the steering wheel. Putting the car into ...

    Tire pressure specifications
    WARNING   Follow recommended tire inflation pressures. Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect handling and fuel economy, and ...