Page 243 of 561

242 Controls in detail3-zone automatic climate control*Deactivating
It is possible to deactivate the air condi-
tioning (cooling) function of the automatic
climate control system. The air in the vehi-
cle will then no longer be cooled or dehu-
midified.
Press button9 (
page 232).
The indicator lamp on the button goes
out. The cooling function switches off
after a short delay.Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.
Press button9 again.
The indicator lamp on the button
comes on.
The air conditioning uses the refrigerant
R-134a. This refrigerant is free of CFCs
which are harmful to the ozone layer.Using driver-side settings for all tem-
perature zones
You can use the settings of the driver’s
side, such as temperature, air volume and
air distribution, for all temperature zones.
These settings only need to be made once
and the climate control system will auto-
matically regulate the settings for all tem-
perature zones quickly and comfortably.
Activating
Adjust the temperature, air volume and
air distribution (
page 232).
Press button; (
page 232).
The indicator lamp on the button
comes on.
The driver-side settings are used for all
temperature zones.
!If the air conditioning cannot be turned
on again, this indicates that the air
conditioning is losing refrigerant. The
compressor has turned off.
Have the air conditioning checked at
the nearest authorized Mercedes-Benz
Light Truck Center.
Page 245 of 561
244 Controls in detail3-zone automatic climate control*Rear automatic climate control
The control panel is located in the rear cen-
ter console.Rear automatic climate control panel
Activating rear air conditioning
Press buttonU.
The indicator lamp on the button
comes on. The temperature, air vol-
ume, and air distribution are adjusted
automatically.
Deactivating rear air conditioning
Press button´.
The indicator lamp on the button goes
out.
The cooling function switches off after
a short delay.
1
Increase air volume
2
Air distribution and air volume
(automatic, manual)
3
Air distribution (directs air through
the side air vents
4
Right rear center air vent, adjustable
5
Air distribution (directs air through
the footwells and side air vents)
6
Rear automatic climate control
on/off
7
Decrease air volume
8
Left rear center air vent, adjustable
9
Indicator lamps for air volume
settings
a
Temperature control
iThe climate control must be switched
on (
page 234).
Page 247 of 561

246 Controls in detail3-zone automatic climate control*Increasing the temperature
Turn temperature controla
(page 244) slightly clockwise.
The rear automatic climate control will
correspondingly adjust the interior air
temperature for the rear passenger
compartment.
Decreasing the temperature
Turn temperature controla
(page 244) slightly counterclock-
wise.
The rear automatic climate control will
correspondingly adjust the interior air
temperature for the rear passenger
compartment.Setting the temperature from the front
automatic climate control panel
You can adjust the temperature for the
rear automatic climate control from the
front panel.
Make sure the front automatic climate
control is switched on (
page 234).
Press button> (
page 232).
The indicator lamp on button>
comes on.
In displaye (
page 232), you will see
the >symbol followed by
MODE
.
Set the desired temperature for the
rear passenger compartment using
temperature control 9 (
page 232).
After approximately 3 seconds after
the last adjustment, the display switch-
es back to its standard display and the
indicator lamp on button> goes
out.Adjusting air volume
Adjusting manually
Five blower speeds are available.
Press button to decrease or
buttonQ to increase air volume to
the desired level.
The indicator lamp on theU button
goes out. The selected blower speed is
shown by the indicator lamps for air
volume settings 9 (
page 244).
Adjusting automatically
Press buttonU.
The indicator lamp on the button
comes on. The air volume is adjusted
automatically.iYou can also press the>button
once more to switch back to the stan-
dard display.