Mercedes-Benz 2011 GL-Class Operator's Manual page 135

Function
= Defrosts the windshield
? Increases the airflow
A Directs the airflow through the
defroster vents
B Switches cooling with air
dehumidification on/off
Switches the residual heat
function on/off
C Sets the temperature, right
D Switches rear-compartment
climate control on/off
E Directs the airflow through the
center and side air vents
F Directs the airflow to the
footwells and side air vents
G Displays the airflow level
H Reduces the airflow
I Switches the rear window
heating on/off
J Activates/deactivates air-
recirculation mode
K Interior temperature sensor
L Switches climate control on/
off
Rear control panel
M Increases the airflow
Overview of climate control systems
i Notes/tips
Only use the "defrosting" function briefly until the
windshield is clear again.
Activate climate control using the à and Á
buttons. The indicator lamps in the à and Á
buttons light up.
Use the residual heat function if you want to heat or
ventilate the vehicle interior when the ignition is
switched off. The "residual heat" function can only be
activated or deactivated with the ignition switched
off.
Set the temperature to 72 ‡ (22 †).
Only use "air-recirculation" mode briefly, e.g. if there
are unpleasant outside odors or when in a tunnel. The
windows could otherwise fog up as, in air-
recirculation mode, no fresh air is drawn into the
vehicle.
Activate climate control using the à and Á
buttons. The indicator lamps in the à and Á
buttons light up.
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