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Operating the climate control systems
118
MAX COOL maximum cooling
The MAX COOL function is only available in vehi-
cles for the USA.
MAX COOL is only operational when the engine
is running.
To activate: press the Ù button.
X
The indicator lamp in the button lights up.
To deactivate: press the Ù button.
X
The indicator lamp in the button goes out. The
previously selected settings are restored.
When you activate MAX COOL, climate control
switches to the following functions:
maximum cooling
R
maximum airflow
R
air-recirculation mode on
R
Defrosting the windows
Windows fogged up on the inside
Activate the ¿ cooling with air dehumidi-
X
fication function.
Activate the à mode button.
X
If the windows continue to fog up, activate the
X
¬ "Windshield defrosting" function.
i
You should only select this setting until the
windshield is clear again.
Problems with the rear window defroster
Problem
The rear window
defroster has deactiva-
ted prematurely or can-
not be activated.
Switching air-recirculation mode
on/off
General notes
If you switch on air-recirculation mode, the win-
dows can fog up more quickly, in particular at
low temperatures. Only use air-recirculation
mode briefly to prevent the windows from fog-
ging up.
Possible causes/consequences and M Solutions
The on-board voltage is too low because too many electrical consum-
ers are switched on.
Switch off any consumers that are not required, e.g. reading lamps,
X
interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window defroster
can be activated again.
Windows fogged up on the outside
Activate the windshield wipers.
X
Press the _ button repeatedly until the
X
P or O symbol appears in the display.
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 automatically
after several minutes.
If the battery voltage is too low, the rear window
defroster may switch off.
Activating/deactivating
Turn the SmartKey to position 2 in the igni-
X
tion lock (
page 122).
Y
Press the ¤ button.
X
The indicator lamp in the ¤ button lights
up or goes out.
Activating/deactivating
Turn the SmartKey to position 2 in the igni-
X
tion lock (
page 122).
Y
To activate: press the g button.
X
The indicator lamp in the g button lights
up.
i
Air-recirculation mode is automatically acti-
vated at high levels of pollution or at high out-
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