2002 MERCEDES-BENZ CL500 climate control

172 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Dust filter
Nearly all dust particles and pollen are filtered out
before outside air enters the passenger compartment
through the air distribution system.Automatic maximum cooling (MAXCOOL)
With the automatic climate control set to automatic, the
system will automatically switch to maximum cooling
output when necessary to achieve the set temperature
quickly, see page 173. The display shows
“AUTO MAXCOOL”.
The temperature setting cannot be changed during
maximum cooling operation.
Note:
By pressing one of the temperature buttons, the system
will display briefly (approx. 5 seconds) the set
temperature in the display.
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173 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Basic setting – automatic mode
In the automatic mode the automatic climate control
cools or heats the interior depending on the direction
and strength of the sunlight, outside temperature,
selected interior temperature and the actual interior
temperature of the vehicle. With the automatic climate
control switched off, the air volume and distribution can
still be set manually.
There are three basic settings for the automatic mode:
•Automatic air volume control
•Automatic air outlet control, left and right
•Automatic air outlet control, center, see page 169
We recommend these settings to be used all year round.Air volume and distribution are controlled
automatically.
We recommend to set the temperature switches on the
left and right to 72
°F (22
°C). Please make changes from
this setting to suit your personal requirements.
Automat ic airf low regu lation:
Press the A on the air volume switch. The display
shows “AUTO”.
Automatic air distribution:
Press on both Uknobs until they click in. Theh,
jand ksymbols will no longer be visible.
The economy mode and air recirculation functions will
be switched off. The automatic blower will be activated
at the same time.
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174 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 Ubutton. The button pops out, theh, j
andk symbols are visible. Turn the button to select
the air distribution desired.
hAir from the center, side and door air outlets.
jAir from the center, side, door and windshield air
outlets.
kAir from the center, side, door and footwell air
outlets.
To return to automatic mode:
Press the Ubutton until it clicks in. Theh, j
and ksymbols will no longer be visible.Air volume, manual
Press the air volume switch up or down. Seven blower
speeds can be selected.
P83.40-2300-21
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175 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Defrosting
Press the Pbutton. The display showsP.
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.
Pressing the Pbutton again returns the system to
the previous setting.Windows fogged on the inside
Switch off the economy mode, if selected: Press
button AC
OFF
. 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.
Adjust left and right air outlets upwards.
Set blower to the maximum blower speed.
Increase temperature setting.
Open the side air outlets and direct them onto the side
windows.
P83.40-2009-21
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176 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Windshield fogged on the outside
Switch on the windshield wiper.
Press on both U buttons until they click in.
Theh, jand ksymbols will no longer be
visible.
Air recirculation
Select air recirculation:
The indicator lamp in the Obutton is not
illuminated.
Press buttonO briefly. The indicator lamp in the
button illuminates.
Switch off the air recirculation:
The indicator lamp in the Obutton is illuminated.
Press buttonO briefly. The indicator lamp in the
button will go 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 and hold button O until the side windows and
the sliding / pop-up roof are closed. The indicator lamp
in the button lights up.
Switching off air recirculation and activating
convenience opening of power windows and sliding/
pop-up roof:
The indicator lamp in the button O is illuminated.
Press and hold button O until the side windows and
the sliding / pop-up roof are in the desired position.
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177 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 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 AC
OFF
is selected.
The s ystem s witches autom atic ally to air re circ ulation at
high outside temperatures. A quantity of outside air is
added after a maximum of 30 minutes.
Important!
If the windows should fog up from the inside, switch
from recirculated air back to fresh air.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 ebutton is not
illuminated.
Press ebutton briefly. The indicator lamp in the
button illuminates.
Switch off activated charcoal filter:
The indicator lamp in the ebutton is illuminated.
Press ebutton 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 ACOFF
is selected or if the outside
temperature has fallen below 40
°F(5
°C).
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178 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
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 and hold button e until the side windows and
the sliding / pop-up roof are closed. The indicator lamp
in the button illuminates.
Switching off activated charcoal filter and activating
convenience opening of power windows and sliding /
pop-up roof:
The indicator lamp in the e button is illuminated.
Press and hold button e until the side windows and
the sliding / pop-up roof are in the desired position.
The indicator lamp in the button goes out.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 AC
OFF
button to activate. The indicator lamp in the
button illuminates.
Press AC
OFF
button once again to return to the previous
setting. The indicator lamp in the button goes out.
Important!
In the mode AC
OFF
the windows could fog up on the
inside. Switch off ACOFF
mode.
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179 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 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 setting of the automatic
climate control. Air volume and distribution are
controlled automatically.
To select:
Turn the electronic key in starter switch to position 1
or 0 or remove it altogether.
Press buttonT. The display shows “REST”.
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.
Note:
The battery symbol# will appear in the automatic
climate control display some time before the residual
engine heat utilization is switched off if the battery
voltage drops.
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