Mercedes-Benz 2011 GL-Class Operator's Manual page 146

Setting the air vents
144
Center vents in the rear compartment (3rd row of
seats)
Rear-compartment air vent, left
:
Rear-compartment air vent, right
;
Rear-compartment air vent thumbwheel,
=
right
Rear-compartment air vent thumbwheel,
?
left
X
To open/close: turn thumbwheels =
or ? up or down.
Setting the rear-compartment side air
vents
B-pillar air vent
:
B-pillar air vent
;
Thumbwheel for B-pillar air vent, rear
=
Thumbwheel for B-pillar air vent, front
?
X
To open/close: turn thumbwheels =
or ? up or down.