Mercedes-Benz 2013 GL X166 Operator's Manual page 157

X
To open/close: turn thumbwheel : up or
down.
Setting the rear-compartment side air
vents
2nd row of seats
B-pillar air vent
:
Thumbwheel for B-pillar air vent
;
X
To open/close: turn thumbwheel ; to the
left or right.
B-pillar air vent in the headliner
B-pillar air vent
:
Thumbwheel for B-pillar air vent
;
X
To open/close: turn thumbwheel ; up or
down.
Setting the air vents
3rd row of seats
B-pillar air vent in the headliner
B-pillar air vent
:
Thumbwheel for B-pillar air vent
;
X
To open/close: turn thumbwheel ; up or
down.
155
Z