2006 MERCEDES-BENZ R350 climate control

235 Controls in detail
3-zone automatic climate control*
Deactivating the rear automatic
climate control
You can switch on and off the rear auto-
matic climate control with the automatic
climate control panel in the front.
Deactivating
Press button> (
page 232).
The indicator lamp on the button
comes on.
In displaye (
page 232), you will see
the >symbol followed by
MODE
for
approximately 3 seconds.

Press button´ (
page 232).
In displaye (
page 232), you will see
the >symbol followed by
OFF
.
The rear automatic climate control is
switched off.Reactivating

Press button> (
page 232).
The indicator lamp on button>
comes on.
In displaye (
page 232), you will see
the >symbol followed by
ON and
MODE
. The
MODE
display is cleared and
the indicator lamp on button>
goes out after approximately
3 seconds.
The rear automatic climate control
switches on.
For more information on rear air condition-
ing, see “Rear automatic climate control”
(
page 244).Operating the climate control system
in automatic mode
You can switch the automatic climate con-
trol system on and off separately for each
zone as needed.
Activating
Press buttonU (
page 232) while
the engine is running.
AUTO appears in the display of control
panele (
page 232). Air volume and
air distribution are controlled separate-
ly for each zone.
iYou can switch on and off the rear au-
tomatic climate control by pressing the
respective button on the rear climate
control panel (
page 244).
iWhen operating the climate control
system in automatic mode, you will
only rarely need to adjust the tempera-
ture, air volume and air distribution.
In automatic mode, cooling with dehu-
midify is switched on. This function can
be switched off if necessary.


236 Controls in detail3-zone automatic climate control*
Use temperature controls1 and9
(page 232) to separately adjust the
air temperature on each side of the
passenger compartment.
The temperature of the interior is ad-
justed automatically.
Deactivating

Press one button of the air distribution
(page 232) or press button

orQ (
page 232).
The
AUTO
display disappears in the
displaye (
page 232).
Depending on which button you press –
the air distribution button or the air vol-
ume button
or Q – automatic
control of either the air distribution or
air volume is switched off.
Setting the temperature
Use temperature controls1 and9
(page 232) to separately adjust the air
temperature on each side of the passenger
compartment. You should raise or lower
the temperature setting in small incre-
ments, preferably starting at 72°F (22°C).
The automatic climate control will adjust
to the set temperature as fast as possible.
Increasing

Turn temperature control1 and/or
9 slightly clockwise.
The automatic climate control system
will correspondingly adjust the interior
air temperature.
Decreasing

Turn temperature control1 and/or
9 slightly counterclockwise.
The automatic climate control system
will correspondingly adjust the interior
air temperature.
Adjusting air distribution
Use the air distribution buttons3,h,
orj for the driver’s side, or7,b, orc
(page 232) for the passenger side to
separately adjust the air distribution on
each side of the passenger compartment.
The following symbols are found on the
buttons:
Symbol
Function
Driver’s
side
Passen-
ger side
6
Z
Directs air to the
windshield and
side air vents
7
a
Directs air through
the center, side
and rear passen-
ger compartment
air vents
8
Y
Directs air to the
footwells and side
air vents


237 Controls in detail
3-zone automatic climate control*

Press the desired air distribution but-
ton (
page 232).
The indicator lamp on the button goes
out.
Adjusting the air distribution for the
center and side air vents
Opening the center air vents

Turn thumbwheels 5 and 6
(page 230) upward.
The corresponding center air vents on
the left and right are open.
Closing the center air vents

Turn thumbwheels 5 and 6
(page 230) downward.
The corresponding center air vents on
the left and right are closed.Opening the side air vents

Turn thumbwheels 2 and 7
(page 230) downward.
The corresponding side air vents on the
left and right are open.
Closing the side air vents

Turn thumbwheels 2 and 7
(page 230) downward.
The corresponding side air vents on the
left and right are closed.
Adjusting air volume
Five blower speeds are available.
Press button
to decrease or
buttonQto increase air volume
(page 232) to the desired level.
The indicator lamp on buttonU
goes out.
The AUTO
display disappears in the
display e (
page 232) and the auto-
matic mode is switched off. The select-
ed blower speed appears in the
displaye (page 232).

238 Controls in detail3-zone automatic climate control*Front defroster
You can use this setting to defrost the
windshield, such as when it is iced up. You
can also use it to defog the windshield and
side windows.
Activating
Press button0 (
page 232).
The indicator lamp on the button
comes on.The air conditioning switches to the follow-
ing functions automatically:


maximum blower speed and heating
power


air flows onto the windshield and the
front side windows (side air vents must
be open)


the air conditioning compressor
switches on at outside temperatures
above approximately 41°F (5°C) for
air-drying
Deactivating

Press button0 (
page 232).
The indicator lamp on the button goes
out. Defrosting is turned off.
The previous settings are once again in
effect.Windshield fogged on the outside

Switch the windshield wipers on
(page 59).

Press buttonU (
page 232).
AUTO appears in the display of control
panele (
page 232). Air volume and
air distribution are controlled separate-
ly for each zone.
If the automatic air distribution and air vol-
ume are switched off:

Press buttons8 and Y
(page 232).
iKeep this setting selected only until the
windshield or the side windows are
clear again.
When the defrost setting has been se-
lected, only the rear window defroster
can be switched on. No other settings
are possible.
iTo switch off, you can also press
button´ orU (
page 232).
iKeep this setting selected only until the
windshield is clear again.

239 Controls in detail
3-zone automatic climate control*
Maximum cooling MAX COOL
If the air distribution control as well as the
airflow volume control are set toU and
there is a high need for cooling, the
MAX COOL function is activated.
“MAX COOL” appears in the front and rear
display.
This provides the fastest possible cooling
of the vehicle interior (when windows and
tilt/sliding sunroof* or tilt/sliding panel*
are closed).
Air recirculation mode
Switch to air recirculation mode to prevent
unpleasant odors from entering the vehicle
from the outside (e.g. before driving
through a tunnel). This setting cuts off the
intake of outside air and recirculates the
air in the passenger compartment.Activating

Press button: (
page 232).
The indicator lamp on the:button
comes on.
Warning!
G
Fogged windows impair visibility, endanger-
ing you and others. If the windows begin to
fog on the inside, switching off the air
recirculation mode immediately should clear
interior window fogging. If interior window
fogging persists, make sure the air
conditioning (
page 241) is activated, or
press button0.
iThe air recirculation mode is activated
automatically at high outside tempera-
tures.
The indicator lamp on button:is
not lit when the air recirculation mode
is automatically switched on.
A quantity of outside air is added after
approximately 30 minutes.
If you have turned off the air condition-
ing (
page 241) or the outside
temperature is below 41°F (5°C), the
air recirculation mode will not switch
on automatically.

240 Controls in detail3-zone automatic climate control*
Deactivating
Press button:(
page 232).
The indicator lamp on the:button
goes out.
Warning!
G
Never operate the windows and tilt/sliding
sunroof* or tilt/sliding panel* if there is the
possibility of anyone being harmed by the
opening or closing procedure.
In case the procedure causes potential dan-
ger:
Vehicles with or without tilt/sliding sun-
roof*: The closing of the windows can be im-
mediately halted by pressing or pulling the
respective window switch. The closing of the
tilt/sliding sunroof* can be immediately
halted by moving the switch for the tilt/slid-
ing sunroof* in any direction.
The closing of the windows and the
tilt/sliding sunroof* can be reversed by
again pressing and holding the:button.
Vehicles with panorama roof*: The closing
of the windows and tilt/sliding panel* can
be immediately halted by releasing
the:button.
iIf you press and hold button:, the
windows and the tilt/sliding sunroof*
or tilt/sliding panel* will close.iTo cool the interior as fast as possible,
the automatic climate control automat-
ically switches to air recirculation. The
indicator lamp on button:is not lit
when the system switches to air recir-
culation automatically.
iThe air recirculation mode is
deactivated automatically

after five minutes if the outside
temperature is below
approximately 41°F (5°C)


after five minutes if the air condi-
tioning and air-drying is turned off


after 30 minutes if the outside
temperature is above
approximately 41°F (5°C)

241 Controls in detail
3-zone automatic climate control*
At outside temperatures above 79°F
(26°C) the system will not automatically
switch back to outside air. A quantity of
outside air is added after approximately
30 minutes.
Air conditioning
The cooling function, only operational
when the engine is running, cools the vehi-
cle down to the selected interior tempera-
ture. The cooling function also
dehumidifies the air in the vehicle interior,
thereby preventing the windows from fog-
ging up.
iPress and hold button:for approx-
imately 2 seconds. The windows,
and/or the tilt/sliding sunroof*, (or
tilt/sliding panel*) will return to their
previous position. You can release
button:once the opening proce-
dure has begun. The windows and/or
the tilt/sliding sunroof* (or tilt/sliding
panel*) continue opening until they
have reached their previous position.
A window or the tilt/sliding sunroof*
(or tilt/sliding panel*) will only return
to its previous position if it has not
been moved to another position using
the respective window switch or
tilt/sliding sunroof* (or tilt/sliding
panel*) switch after it was closed with
button:.
A window or the tilt/sliding sunroof (or
tilt/sliding panel*) that was moved will
remain in its current position if
button:is used to re-open the re-
maining windows or tilt sliding sun-
roof* (or tilt/sliding panel*).
iCondensation may drip out from under-
neath the vehicle. This is normal and
not an indication of a malfunction.Warning!
G
If you turn off the cooling function, 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.

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.