Mercedes-Benz M-Class Owner's Manual page 130

air vents. The side air vents can only be
closed when the controls on the side air
vents are turned downwards.
Turn the key to position 2 in the ignition
X
lock.
Front control panel: press the _ but-
X
ton repeatedly until the desired symbol
appears in the display.
Rear control panel: press the M and/
X
or O button.
Setting the airflow
Turn the key to position 2 in the ignition
X
lock.
To increase: press the K button.
X
To reduce: press the I button.
X
i
You can use THERMOTRONIC automatic
climate control to set the airflow in the rear
compartment separately.
Switching the ZONE function on/off
To switch on: press the á button.
X
The indicator lamp in the á button lights
up.
THERMATIC 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.
THERMOTRONIC automatic climate con-
trol: 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 tempera-
ture, airflow or air distribution are activated,
the temperature setting for the driver's side
is not adopted for the other climate control
zones.
Only with engine running.
10
11 Depending on the outside temperature.
Operating the climate control system
To switch off: press the á button.
X
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.
Demisting the windscreen
You can use this function to defrost the wind-
screen or to demist the inside of the wind-
screen and the side windows.
i
You should only select the demisting
function until the windscreen is clear again.
Turn the key to position 2 in the ignition
X
lock.
To activate: press the ¬ button.
X
The indicator lamp in the ¬ button lights
up.
The climate control system switches to the
following functions:
R cooling with air dehumidification on
high airflow
R
high temperature
R
air distribution to the windscreen and
R
front side windows
air-recirculation mode off
R
To switch off: press the ¬ button.
X
The indicator lamp in the ¬ button goes
out. The previously selected settings come
into effect again. The cooling with air dehu-
midification function remains on. Air-recir-
culation mode remains deactivated.
or
Press the à button.
X
The indicator lamp in the ¬ button goes
out. Airflow and air distribution are set to
automatic mode.
or
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11
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10
Z