2002 MERCEDES-BENZ C320 Climate control

165 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Special settings (use only for short duration)
Air distribution, manual
Press left or right U button. The button pops out, the
h, j andk symbols are visible. Turn the
button to select the air distribution desired.
hAir from the center, side, dashboard top center
and rear passenger compartment air outlets.
jAir from the windshield, side defroster and rear
passenger compartment air outlets.
kAir from the center, side, footwell, rear footwell
and rear passenger compartment air outlets.
To return to automatic mode:
Press left or right U button. The h, j
andk symbols will no longer be visible.Air volume, manual
Seven blower speeds are available.
Press rightQ or leftM side of air volume control
switch until the requested blower speed is attained.
The display “AUTO” disappears and the automatic mode
is switched off. The selected blower speed is shown in
the display.
To return to automatic mode:
Press left or right U button until it clicks in. The
h, j andk symbols will no longer be visible.
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166 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Defrosting
Press the P button. The indicator lamp in the button
illuminates.
Maximum heated and automatically controlled amount
of air is directed to the defroster and windshield air
outlets.
Switch off air recirculation, if selected: Press
buttonO. The indicator lamp in the button will go
out.
The fan is set to a higher speed and the warm air is
directed to the defroster and windshield air outlets.
Pressing the P button again returns the system to
the previous setting.Windows fogged up on the inside
Switch off the economy mode, if selected:
Press buttonS. The indicator lamp in the button will
go out.
Switch off air recirculation, if selected:
Press buttonO. The indicator lamp in the button will
go out.
Set blower to the maximum blower speed.
Increase temperature setting.
Open the side air outlets and direct them onto the side
windows.
Windshield fogged up on the outside
Switch on the windshield wiper.
Close air outlet at dashboard top center (7, page 160).
Switch to manual mode.
Turn air distribution control switch to positionh
ork.
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167 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Air recirculation
Select air recirculation:
The indicator lamp in the button O is not
illuminated.
Press button O briefly. The indicator lamp in the
button illuminates.
To switch off the air recirculation:
The indicator lamp in the button O is illuminated.
Press button O briefly. The indicator lamp in the
button goes out.
Switching on air recirculation and activating
convenience closing of power windows and sliding /
pop-up roof:
The indicator lamp in the button O is not
illuminated.
Press button O for more than 2 seconds, the side
windows and the sliding / pop-up roof will be closed. The
indicator lamp in the button illuminates.Switching off air recirculation and activating
convenience opening:
The indicator lamp in the button O is illuminated.
Press button O for more than 2 seconds, the side
windows and the sliding / pop-up roof return to the
position they were in before closing.
A window or the sliding / pop-up roof opened manually
after convenience closing will no longer be returned to
the position it was in before closing when convenience
opening is selected.
The system automatically switches from air
recirculation to fresh air:
•after 30 minutes if the outside temperature is above
about 40
°F(5
°C),
•after 5 minutes if the outside temperature is below
about 40
°F(5
°C),
•after 5 minutes if economy mode S is selected.
The system switches automatically to air recirculation at
high outside temperatures. A quantity of outside air is
added after a maximum of 30 minutes.
If the windows should fog up from the inside, switch
from recirculated air back to fresh air.
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168 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Activated charcoal filter
An activated charcoal filter markedly reduces bad odors
and removes pollutants from air entering the passenger
compartment.
Select activated charcoal filter:
The indicator lamp in the button e is not
illuminated.
Press e button briefly. The indicator lamp in the
button illuminates.
Switch off activated charcoal filter:
The indicator lamp in the button e is illuminated.
Press e button briefly. The indicator lamp in the
button goes out.
The system switches automatically to the air
recirculation mode, if the carbon monoxide (CO) or
nitrogen oxides (NO
X) concentration of the outside air
increases beyond a predetermined level.
The automatic air recirculation mode does not function
if economy mode S is selected or if the outside
temperature has fallen below 40
°F(5
°C). The activated charcoal filter should be switched off
when windows fog up on the inside, or if the passenger
compartment needs to be quickly heated or cooled
down.
Switching on the activated charcoal filter and activating
convenience closing of power windows and sliding /
pop-up roof:
The indicator lamp in the e button is not
illuminated.
Press button e for more than 2 seconds, the side
wi nd ows and t he slid in g / p op-up r oof will b e c los ed . The
indicator lamp in the button illuminates.
Switching off activated charcoal filter and activating
convenience opening:
The indicator lamp in the e button is illuminated.
Press button e for more than 2 seconds, the side
windows and the sliding / pop-up roof return to the
position they were in before closing. The indicator lamp
in the button goes out.
A window or the sliding / pop-up roof opened manually
after convenience closing will no longer be returned to
the position it was in before closing when convenience
opening is selected.
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169 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Economy mode
The function of this setting corresponds to the
automatic mode. However, because the air conditioning
compressor will not engage (fuel savings), it is not
possible to air condition in this setting.
Press S button to activate. The indicator lamp in the
button illuminates.
Press S button once again to return to the previous
setting. The indicator lamp in the button goes out.
Important!
In the S mode the windows could fog up on the
inside. Switch off S mode.
Automatic climate control - OFF/ON
To switch the automatic climate control off, set the air
volume control switch to position 0.
The fresh air supply to the vehicle interior is shut off.
While driving, use this setting only temporarily,
otherwise the windshield could fog up.To switch the automatic climate control on again, press
the U or Pbutton, or set air volume control
switch to any speed.
Residual engine heat utilization
With the engine switched off, it is possible to continue
to heat or ventilate the interior for a short while,
dependent of the temperature set in the automatic
climate control. Air volume and distribution are
controlled automatically.
To s e l e c t :
Turn the electronic key in starter switch to position 1
or 0 or remove it altogether.
Press button T. The indicator lamp in the button
illuminates.
This function selection will not activate if the battery
level is insufficient.
The function switches off automatically:
•if the electronic key in starter switch is turned to
position 2,
•after approximately 30 minutes,
•if the battery voltage drops.
OM_203.book Seite 169 Donnerstag, 31. Mai 2001 11:57 11

170 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Rear window defroster
Turn the electronic key in starter switch to position 2.
To select:
Press the F button in the control panel of the
automatic air conditioner. The indicator lamp in the
button illuminates.
To c a nc el:
Press the F button in the control panel of the
automatic air conditioner. The indicator lamp in the
button goes out.
Note:
Heavy accumulation of snow and ice should be removed
before activating the defroster. The rear wind ow de fr oster us es a large amount of power.
To keep the battery drain to a minimum, turn off the
defroster as soon as the rear window is clear.
The defroster is automatically turned off after
approximately 6–17 minutes of operation depending on
the outside temperature and vehicle speed.
If several power consumers are turned on
simultaneously, or the battery is only partially charged,
it is possible that the defroster will automatically turn
itself off. When this happens, the indicator lamp inside
the switch starts blinking.
As soon as the battery has sufficient voltage, the
defroster automatically turns itself back on.
OM_203.book Seite 170 Donnerstag, 31. Mai 2001 11:57 11

171 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Front center console storage compartment
ventilation
The front center console compartment has its own air
outlet.
To open: Raise lever (1).
To close: Lower lever (1).The air volume is dependent on the setting of:
•air distribution control,
•air volume control,
•air outlets in the dashboard.
The air temperature is about the same as that of the
dashboard air outlets. It cannot be regulated separately.
Notes:
The compartment can get very warm due to its confined
space. When storing heat sensitive objects in the
compartment, close the air outlet while heating the
passenger compartment.
Do not allow articles to obstruct the air outlet in the
storage compartment.
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172 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Rear passenger compartment adjustable air outlets 1Center air outlet, left
2Air volume control for center air outlets
To open: Turn the wheel upward.
3Center air outlet, right
Note:
The temperature at the air outlets for the rear passenger
compartment (1 and 3) is the same as at the dashboard
center air outlets.
OM_203.book Seite 172 Donnerstag, 31. Mai 2001 11:57 11