Mercedes-Benz C-Class Operator's Manual page 140

Setting the air vents
138
depends on the airflow and air distribution
settings.
! Close the air vent when heating the
vehicle.
At high outside temperatures, open the air
vent and activate the "cooling with air
dehumidification" function. Otherwise,
temperature-sensitive items stored in the
glove box could be damaged.
Air vent thumbwheel
:
Air vent
;
To open/close: turn thumbwheel :
X
clockwise or counter-clockwise.
Setting the rear-compartment air
vents
Rear-compartment air vent thumbwheel
:
Rear-compartment air vent, right
;
Rear control unit, only with 3-zone
=
automatic climate control
Rear-compartment air vent, left
?
10 Only for Canada.
To open/close: turn thumbwheel : up or
X
down.
10