2010 MERCEDES-BENZ ML350 Page 91

The indicator lamp in button ¦ goes out.
The indicator lamp in button Á comes
on.
or
XTurn temperature control : and/or C
( Y page 167) slightly in any direction.
Heating switches to the temperature that
was set before the front defroster was
switched on.
The indicator lamp in button ¦ goes out.
The indicator lamp in button Á comes
on.
i The air conditioning compressor remains
on even if the indicator lamp in button
¦ goes out. This helps to prevent the
windshield from fogging.
Deactivating
XPress button ¦ again.
The indicator lamp in the button goes out.
Defrosting is turned off.
The previous settings are once again in
effect. The air conditioning compressor
remains switched on.
i To deactivate, you can also press button
^ or à .
Windshield fogged on the outside
XSwitch the windshield wipers on
( Y page 98).XPress air distribution button P or O .
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.
GWarning!
Fogged windows impair visibility,
endangering 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 is activated, or press button
¦ .
XActivating: Press button d.
The indicator lamp in the button comes on.
i The air recirculation mode is activated
automatically at high outside
temperatures.
The indicator lamp in button d is not lit
when the air recirculation mode is switched
on automatically.
A quantity of outside air is added after
approximately 30 minutes.
If you have turned off the air conditioning
or the outside temperature is below 41‡
(5†), the air recirculation mode will not
switch on automatically.
XDeactivating: Press button d.
The indicator lamp in the button goes out.
i The manually selected air recirculation
mode is deactivated automatically:
R after 5 minutes if the outside
temperature is below approximately
41‡ (5†)
R after 5 minutes if the air conditioning and
air-drying are turned off
R after 30 minutes if the outside
temperature is above approximately
41‡ (5†)
Residual heat and ventilation
With the engine switched off, it is possible to
continue to heat or ventilate the interior for
up to 30 minutes. This feature makes use of
the residual heat produced by the engine.
172Climate controlControls in detail
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FunctionRecommendation/Notes:Temperature control, driver’s
sidei Set the temperature to 72‡
(22†).( Y page 179);Air distribution and air volume
(automatic mode)i Switches on the automatic
mode. The indicator lamp in
button à comes on.(Y page 179)=Front defrosteri
Keep this setting selected
only until the windshield or the
side windows are clear again.( Y page 181)?Increasing air volume(Y page 181)AAir distribution (directs air
through the windshield and side
air vents)( Y page 180)BAC cooling on/offi
Switches on the air
conditioning. The indicator
lamp in button Á comes
on.( Y page 178)Residual heat/ventilationi
With the engine turned off, it
is possible to continue to heat
or ventilate the interior.( Y page 183)CTemperature control, passenger
sidei Set the temperature to 72‡
(22†).( Y page 179)DOperating the rear climate
control from the front( Y page 178)EAir distribution (directs air
through center and side air
vents)( Y page 180)FAir distribution (directs air
through the footwells and side
air vents)( Y page 180)GAir volume displayHDecreasing air volume(Y page 181)IRear window defroster(Y page 183)JAir recirculationi
Only use this function for a
short time, e.g. in a tunnel.
Otherwise, the windows can
fog up due to lack of fresh air.( Y page 182)1743-zone automatic climate controlControls in detail
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FunctionRecommendation/NotesKInterior temperature sensorLClimate control on/offiSwitches on the climate
control system. The indicator
lamp in button ^ goes out.
(Y page 178)Canada onlyFunctionRecommendation/Notes:Temperature control, driver’s
side
iSet the temperature to 72‡
(22†).
(Y page 179);Air distribution and air volume
(automatic mode)
iSwitches on the automatic
mode. The indicator lamp in
button à comes on.
(Y page 179)=Air distribution, driver’s side
(directs air through the
windshield and side air vents)
(Y page 180)?Front defrosteriKeep this setting selected
only until the windshield or the
side windows are clear again.
(Y page 181)AIncreasing air volume(Y page 181)BRear window defroster(Y page 183)3-zone automatic climate control175Controls in detail164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 175Z

FunctionRecommendation/NotesCAir distribution, passenger side
(directs air through the
windshield and side air vents)( Y page 180)DOperating the rear climate
control from the front( Y page 178)ETemperature control, passenger
sidei Set the temperature to 72‡
(22†).( Y page 179)FAutomatic climate control on/
offi Switches on the climate
control system. The indicator
lamp in button ^ goes out.(Y page 178)GAir distribution, passenger side
(directs air through the footwells
and side air vents)( Y page 180)HAir distribution, passenger side
(directs air through center and
side air vents)( Y page 180)IAC cooling on/offi
Switches on the air
conditioning. The indicator
lamp in button Á comes
on.( Y page 178)Residual heat ventilationi
With the engine turned off, it
is possible to continue to heat
or ventilate the interior.( Y page 183)JDisplayKDecreasing air volume(Y page 181)LAir recirculationi
Only use this function for a
short time, e.g. in a tunnel.
Otherwise, the windows can
fog up due to lack of fresh air.( Y page 182)MAir distribution, driver’s side
(directs air through center and
side air vents)( Y page 180)NAir distribution, driver’s side
(directs air through the footwells
and side air vents)( Y page 180)1763-zone automatic climate controlControls in detail
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FunctionRecommendation/NotesOInterior temperature sensorPAdopting driver’s side settings
for all zones
(Y page 183)Rear automatic climate control:Increasing air volume;Temperature control=Air distribution and air volume (automatic
mode)
?Air distribution (directs air through the
side air vents)
AAir distribution (directs air through the
footwells and side air vents)
BRear automatic climate control on/offCDecreasing air volume
Notes on 3-zone automatic climate
control
With the help of a sun sensor, the automatic
climate control determines the relation of the
sun to the vehicle and automatically adjusts
the inside temperature for every individual
zone.
The automatic climate control is operational
whenever the engine is running. It cools the
vehicle’s interior according to the angle and
intensity of the sun’s rays, the outside
temperature and the selected temperature.
You can operate the automatic climate
control in either the automatic or manual
mode.
Nearly all dust particles, pollutants and odors
are filtered out before outside air enters the
passenger compartment through the air
distribution system.
GWarning!
Severe conditions (e.g. strong air pollution)
may require replacement of the filter before
its scheduled replacement interval. A clogged
filter will reduce the air volume to the interior
and the windows could fog up, impairing
visibility and endangering you and others.
Have a clogged filter replaced as soon as
possible at an authorized Mercedes-Benz
Center.
The air conditioning will not engage (no
cooling) if the A/C mode is deactivated
(Y page 178).
GWarning!
Follow the recommended settings for heating
and cooling given on the following pages.
Otherwise the windows could fog up,
impairing visibility and endangering you and
others.
Keep the air intake grille in front of the
windshield free of snow and debris.
iIf the vehicle interior is hot, ventilate the
interior before driving off, see “Summer
opening feature” (Y page 102). The climate
control will then adjust the interior
temperature to the set value much faster.
3-zone automatic climate control177Controls in detail164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 177Z

Deactivating the climate control
systemGWarning!
When the climate control system is switched
off, the outside air supply and circulation are
also switched off. Only choose this setting for
a short time. Otherwise the windows could fog
up, impairing visibility and endangering you
and others.
Deactivating the front climate control
XDeactivating: Press button ^.
The indicator lamp in the button comes on.
Canada only: Display J (Y page 175) is
cleared.XReactivating: Press button Ã.
i
You can also press button ^ on the
climate control panel.
If you press button ¦ to reactivate the
climate control system, the defrosting
mode is activated.
Deactivating the rear climate control
from the front
USA only
XDeactivating: Press button ±.
The indicator lamp in the button comes on.XReactivating: Press button ±.
The indicator lamp in the button goes out.
Canada only
XDeactivating: Press button X.
The indicator lamp in the button comes on.
In display J ( Y page 175), you will see the
Y symbol followed by MODE for
approximately 3 seconds.XWithin these 3 seconds press button
^ .
In display J, you will see the Y symbol
followed by OFF.
The rear climate control is switched off.XReactivating: Press button X.The indicator lamp in the button comes on.
In display J, you will see the Y symbol
followed by ON and MODE . The MODE display
is cleared and the indicator lamp in button
X goes out after approximately
3 seconds.
The rear climate control switches on.
Deactivating the rear climate control
from the rear
XDeactivating: Press button ^.
The indicator lamp in the button comes on.XReactivating: Press button Ã.
The indicator lamp in the button comes on.
Air conditioning
The air conditioning is operational while the
engine is running and cools the interior air to
the temperature set by the operator. In
addition, the air conditioning dehumidifies
the interior air and helps prevent window
fogging.
GWarning!
If you switch off the air conditioning, 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.
i Condensation may drip out from
underneath the vehicle. This is normal and
not an indication of a malfunction.
Deactivating
It is possible to deactivate the cooling
function of the climate control system. The
interior air will then no longer be cooled or
dehumidified.
XPress button Á.
The indicator lamp in the button goes out.
The cooling function switches off after a
short delay.1783-zone automatic climate controlControls in detail
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Activating
Moist air can fog up the windows. You can
dehumidify the interior air with the air
conditioning.
XPress button Á again.
The indicator lamp in the button comes on.
The air conditioning uses the refrigerant
R134a. This refrigerant is free of CFCs which
are harmful to the ozone layer.
! If the air conditioning cannot be activated
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 Center.
Automatic mode
You can switch the climate control system on
and off for each zone of the passenger
compartment as desired.
When operating the climate control system in
automatic mode, the interior air temperature,
air volume and air distribution are adjusted
automatically.
In automatic mode, cooling with
dehumidification is switched on. This function
can be switched off if necessary.
GWarning!
If you switch off the air conditioning, 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.
XSet the desired temperature
( Y page 179).XActivating: Press button Ã.
The indicator lamp in the button comes on.i The settings for the passenger side are
also used for the rear passenger
compartment.XDeactivating: Press button I or K .
The indicator lamp in button à goes out.
The automatic air volume is switched off
and is controlled according to the desired
setting. The automatic air distribution
remains switched on.
or
XPress an air distribution button Z17
,
M 17
, \ 17
, P , ¯ 18
, c 17
or
O .
The indicator lamp in button à goes out.
The automatic air distribution is switched
off and is controlled according to the
desired position. The automatic air volume
remains switched on.
Automatic mode with rear climate
control panel
XActivating: Press button Ã.
The indicator lamp in the button comes on.
The temperature, air volume and air
distribution are adjusted automatically.XDeactivating: Press button I or K .
The automatic air volume is switched off
and is controlled according to the desired
setting. The automatic air distribution
remains switched on.
or
XPress button M or P .
The automatic air distribution is switched
off and is controlled according to the
desired position. The automatic air volume
remains switched on.
Setting the temperature
You can set the air temperature for each of
the 3 zones separately.You should raise or
lower the temperature setting in small
17 Canada only
18 USA only3-zone automatic climate control179Controls in detail164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 179Z

increments, preferably starting at 72‡
(22†).
Front temperature with front climate
control panel
USA only
XIncreasing/decreasing: Turn
temperature control : and/or C
(Y page 173) slightly clockwise or
counterclockwise.
Canada only
XIncreasing/decreasing: Turn
temperature control : and/or E
(Y page 175) slightly clockwise or
counterclockwise.
Rear temperature with front climate
control panel
USA only
XPress button ±.XIncreasing/decreasing: Turn
temperature control C (Y page 173)
slightly clockwise or counterclockwise.
Canada only
XPress button X.
In display J (Y page 175) you will see the
Y symbol.
XIncreasing/decreasing: Turn
temperature control E (Y page 175)
slightly clockwise or counterclockwise.
Rear temperature with rear climate
control panel
XIncreasing/decreasing: Turn
temperature control ; (Y page 177)
slightly clockwise or counterclockwise.
Adjusting air distribution
USA only
The air distribution can be adjusted manually.
The symbols on the buttons represent the
following functions:
SymbolFunction¯Directs air to the windshield and
side air vents
PDirects air through the center
and side air vents
ODirects air to the footwells and
side air vents
XPress the desired air distribution button
¯, P, or O.
The automatic mode is switched off. The
indicator lamp in the desired button comes
on.
Canada only
The air distribution can be adjusted
separately on each side of the passenger
compartment.
The symbols on the buttons represent the
following functions:
1803-zone automatic climate controlControls in detail
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