Mercedes-Benz GL-Class: Setting the center air vents

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 ...






