Headlamps fogged up on the inside

The headlamps may fog up on the inside if there is high atmospheric humidity.

The level of moisture diminishes, Drive with the headlamps switched on.

The level of moisture diminishes, depending on the length of the journey and the weather conditions (humidity and temperature).

If the level of moisture does not diminish:

specialist workshop. Have the headlamps checked at a qualified specialist workshop.

    See also:

    Override feature for the rear side windows
    WARNING When children ride on the vehicle's rear seats, activate the override switch. Otherwise, the children could be injured, e.g. by trapping themselves in the rear side window. •` ...

    Tires
    Problem Possible causes/consequences and •► Solutions USA only: The yellow tire pressure monitor warning lamp (pressure loss/ malfunction) is lit. Canada only: The yell ...

    The electronic guardian angel: PRE-SAFE has a preventive effect
    Occupant protection in the new Mercedes-Benz R-Class begins well before an accident. The Mercedes-Benz invention PRE-SAFE is able to activate preventive measures reflexively when it recognises the ...