Mercedes-Benz 2013 GL X166 Operator's Manual page 143

Directs the airflow through the rear air vents
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Directs the airflow through the footwell vents
?
Information about using automatic
climate control
The following contains notes and
recommendations on optimum use of
automatic climate control.
Activate climate control using the à and
R
¿Á buttons. The indicator lamps in
the à and ¿Á buttons light up.
Set the temperature to 72 ‡ (22 †).
R
Only use the "defrosting" function briefly
R
until the windshield is clear again.
Only use "air-recirculation" mode briefly,
R
e.g. if there are unpleasant outside odors
or when in a tunnel. The windows could
otherwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
Use the ZONE function to adopt the
R
temperature settings on the driver's side
for the front-passenger side as well. The
indicator lamp above the á button goes
out.
Overview of climate control systems
141
Z