Mercedes-Benz 2010 M-Class Operator's Manual page 180

3-zone automatic climate control
178
Deactivating the climate control
system
G
Warning!
When the climate control system is switched
off, the outside air supply and circulation are
also switched off. Only choose this setting for
a short time. Otherwise the windows could fog
up, impairing visibility and endangering you
and others.
Deactivating the front climate control
X
Deactivating: Press button ^.
The indicator lamp in the button comes on.
Canada only: Display J (
cleared.
X
Reactivating: Press button Ã.
i You can also press button ^ on the
climate control panel.
If you press button ¦ to reactivate the
climate control system, the defrosting
mode is activated.
Deactivating the rear climate control
from the front
USA only
X
Deactivating: Press button ±.
The indicator lamp in the button comes on.
X
Reactivating: Press button ±.
The indicator lamp in the button goes out.
Canada only
X
Deactivating: Press button X.
The indicator lamp in the button comes on.
In display J (
Y symbol followed by MODE for
approximately 3 seconds.
X
Within these 3 seconds press button
^.
In display J, you will see the Y symbol
followed by OFF.
The rear climate control is switched off.
X
Reactivating: Press button X.
Y page 175) is
Y page 175), you will see the
The indicator lamp in the button comes on.
In display J, you will see the Y symbol
followed by ON and MODE. The MODE display
is cleared and the indicator lamp in button
X goes out after approximately
3 seconds.
The rear climate control switches on.
Deactivating the rear climate control
from the rear
X
Deactivating: Press button ^.
The indicator lamp in the button comes on.
X
Reactivating: Press button Ã.
The indicator lamp in the button comes on.
Air conditioning
The air conditioning is operational while the
engine is running and cools the interior air to
the temperature set by the operator. In
addition, the air conditioning dehumidifies
the interior air and helps prevent window
fogging.
G
Warning!
If you switch off the air conditioning, the
vehicle will not be cooled when weather
conditions are warm. The windows can fog up
more quickly. Window fogging may impair
visibility and endanger you and others.
i Condensation may drip out from
underneath the vehicle. This is normal and
not an indication of a malfunction.
Deactivating
It is possible to deactivate the cooling
function of the climate control system. The
interior air will then no longer be cooled or
dehumidified.
X
Press button Á.
The indicator lamp in the button goes out.
The cooling function switches off after a
short delay.