Mercedes-Benz GL-Class: Setting the center air vents - Setting the air vents - Climate control - Mercedes-Benz GL-Class Owner's ManualMercedes-Benz GL-Class: Setting the center air vents

1 Center air vent, left

1 Center air vent, left
2 Center air vent, right
3 Center vent thumbwheel, right
4 Center vent thumbwheel, left

To open/close: turn thumbwheels 3 and 4 to the right or left.

    Important safety notes
    WARNING   When operating the climate control, the air that enters the passenger compartment through the air vents can be very hot or very cold (depending on the set temperature). This c ...

    Setting the side air vents
    ► To open/close: turn thumbwheel 3 to the left or right. Side window defroster vent 1 is never completely shut, even if side air vent 2 is shut. ...

    See also:

    Driving on Snow or Ice
    Drive carefully when there is snow or ice between the tires and the road, creating less traction or grip. Wet ice can occur at about 0°C (32°F) when freezing rain begins to fall, resulting in even ...

    Engine Air Cleaner/Filter
    See Engine Compartment Overview   for the location of the engine air cleaner/filter. Inspect the air cleaner/filter at the scheduled maintenance intervals and replace it at the first oil ...

    Treadwear
    The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 would wea ...