Mercedes-Benz M-Class 2012 Owners Manual - Manual (Page 133)

Rear control panel:
M Directs the airflow through the rear
center and rear side air vents.
O Directs the airflow through the
footwell air vents
i Using the rear control panel, you can also
activate both air distribution positions
simultaneously. In order to do this, press
both air distribution buttons. The air is then
routed through all rear air vents.
i Regardless of the air distribution setting,
airflow is always directed through the side
air vents. The side air vents can only be
closed when the controls on the side air
vents are turned downwards.
X Turn the SmartKey to position 2 in the
ignition lock.
X
Front control panel: press the _
button repeatedly until the desired symbol
appears in the display.
X Rear control panel: press the M and/
or O button.
Setting the airflow
X Turn the SmartKey to position 2 in the
ignition lock.
X To increase: press the K button.
X To reduce: press the I button.
i You can use automatic climate control to
set the airflow in the rear compartment
separately.
Switching the ZONE function on/off
X To switch on: press the á button.
The indicator lamp in the á button lights
up.
Dual-zone automatic climate control: the
temperature setting for the driver's side is
not adopted for the front-passenger side.
The temperature of the front-passenger
side is adopted for the rear compartment.
Automatic climate control: the
temperature setting for the driver's side is
not adopted for the front-passenger side
and the rear compartment.
When the buttons or controls for
temperature, airflow or air distribution are
activated, the temperature setting for the
driver's side is not adopted for the other
climate control zones.
X To switch off: press the á button.
The indicator lamp in the á button goes
out.
The temperature setting for the driver's
side is adopted for the front-passenger side
and the rear compartment.
Defrosting the windshield
You can use this function to defrost the
windshield or to defrost the inside of the
windshield and the side windows.
i You should only select the defrosting
function until the windshield is clear again.
X Turn the SmartKey to position 2 in the
ignition lock.
X To activate: press the ¬ button.
The indicator lamp in the ¬ button lights
up.
The climate control system switches to the
following functions:
R cooling with air dehumidification on 11
R high airflow 12
R high temperature 12
R air distribution to the windshield and
front side windows
R air-recirculation mode off
11 Only with engine running.
12 Depending on the outside temperature.
Operating the climate control system
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