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:
Weatherstrips
Apply silicone grease on weatherstrips to make them last longer, seal better,
and not stick or squeak. See Recommended Fluids and Lubricants . ...
Engine Heater
The engine coolant heater can provide easier starting and better fuel economy
during engine warm-up in cold weather conditions at or below −18°C (0°F). Vehicles
with an engine heater should ...
Tail lamps with LEDs
1 Rear fog lamp
2 Backup lamp
► Switch off the lights.
► Open the cargo compartment.
► Open the side trim panel.
► Turn the corresponding bulb holder
counter-clockwise ...