Mercedes-Benz M-Class Operator's Manual page 146

Operating the climate control systems
144
To switch rear-compartment climate control on/off (
Q
To reduce the airflow (
R
Information about using 3-zone
automatic climate control
The following contains instructions and
recommendations to enable you to get the
most out of your automatic climate control.
Activate climate control using the à and
R
¿ buttons. The indicator lamps above
the à and ¿ buttons light up.
In automatic mode, you can also use the
R
ñ button to set a climate mode
(FOCUS/MEDIUM/DIFFUSE). The
MEDIUM level is recommended.
Set the temperature to 72 ‡ (22 †).
R
Only use the "Windshield defrosting"
R
function briefly until the windshield is clear
again.
Only use air-recirculation mode briefly, e.g.
R
if there are unpleasant outside odors or
when in a tunnel. The windows could
otherwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
Use the ZONE function to adopt the
R
temperature settings on the driver's side
for the front-passenger side and the rear
compartment as well. The indicator lamp
above the á button goes out.
Use the residual heat function if you want
R
to heat or ventilate the vehicle interior
when the ignition is switched off. The
residual heat function can only be activated
or deactivated with the ignition switched
off.
Vehicles with COMAND: if you change the
R
settings of the climate control system, the
climate status display appears for
approximately three seconds at the bottom
of the screen in the COMAND display. See
also the separate COMAND operating
instructions. You will see the current
settings of the various climate control
functions.
page 148)
Y
^ buttons.
Activating/deactivating
X
or
X
page 144)
Y
During automatic engine switch-off, the
climate control function only operates at a
reduced capacity. If you require the full
climate control output, you can switch off the
ECO start/stop function by pressing the ECO
button ( page 163).
Y
Operating the climate control
systems
Switching climate control on/off
General notes
When the climate control is switched off, the
air supply and air circulation are also
switched off. The windows could fog up.
Therefore, switch off climate control only
briefly.
i
Switch on climate control primarily using
the à button (
Y
In the rear compartment, you can also switch
climate control on and off using the à and
Turn the SmartKey to position 2 in the
X
ignition lock ( page 157).
Y
To activate: press the à button.
The indicator lamp in the à button lights
up. Airflow and air distribution are set to
automatic mode.
Press the ^ button.
The indicator lamp in the ^ button goes
out. The previously selected settings are
restored.
To deactivate: press the ^ button.
X
The indicator lamp in the ^ button lights
up.
page 146).