Mercedes-Benz GL-Class 2015 - Manual (Page 162)

MAX COOL is only operational when the
engine is running.
X
To activate: press the Ù button.
The indicator lamp in the button lights up.
X To activate: press off-road button Ù
again.
The indicator lamp goes out. The previously
selected settings are restored.
When you activate MAX COOL, climate con-
trol switches to the following functions:
R maximum cooling
R maximum airflow
R air-recirculation mode on
Defrosting the windows
Windows fogged up on the inside
X
Activate the ¿/Á cooling with air
dehumidification function.
X Activate automatic mode Ã.
X If the windows continue to fog up, activate
the "windshield defrosting" function
(
Y
page 159).
i You should only select this setting until
the windshield is clear again.
Windows fogged up on the outside
X Press the _ button repeatedly until the
P or O symbol appears in the dis-
play.
i You should only select this setting until
the windshield is clear again.
Rear window defroster
General notes
The rear window defroster has a high current
draw. You should therefore switch it off as
soon as the rear window is clear. Otherwise,
the rear window defroster switches off auto-
matically after several minutes.
If the battery voltage is too low, the rear win-
dow defroster may switch off.
Switching on/off
X
Turn the SmartKey to position 2 in the igni-
tion lock (
Y
page 167).
X Press the ¤ button.
The indicator lamp in the ¤ button lights
up or goes out.
160
Operating the climate control systems
Climate
control