Windows fogged up on the outside

wipers. Switch on the windshield wipers.
button repeatedly until the Press the or button repeatedly until the symbol appears in the display. or You should only select this symbol appears in the display.

setting until You should only select this setting until the windshield is clear again.

    See also:

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    Attaching the roof carrier
    – Secure the roof carrier to roof rails 1. – Observe the manufacturer's installation instructions. ...

    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 ...