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:

    Safety & Reliability
    As of this writing, the Insurance Institute for Highway Safety has not yet crash-tested the GL-Class. Eight standard airbags include three-row side curtain airbags and seat-mounted side-impact air ...

    Important safety notes
    If you fail to adapt your driving style, the driving safety systems can neither reduce the risk of accident nor override the laws of physics. Driving safety systems are merely aids designed to ...

    General notes
    WARNING All categories of messages contain important information which should be taken note of and, where a malfunction is indicated, addressed as soon as possible at an authorized Mercedes- ...