2006 MERCEDES-BENZ CL55AMG climate control

189 Controls in detail
Automatic climate control
Adjusting air volume
Use air volume control9 (
page 185) for
both automatic and manual air volume ad-
justment.
Adjusting automatically

PressA on air volume switch9
(page 185).
The display shows
AUTO
. The air volume
is adjusted automatically.
Adjusting manually
Reducing air volume

Press switch 9 down until the desired
air volume is reached.
The display shows the current level.
Increasing air volume

Press switch9 up until the desired air
volume is reached.
The display shows the current level.
Maximum cooling MAXCOOL
If the left and right air distribution controls
as well as the air volume control are set
toU and there is a high need for cool-
ing, the display
AUTO MAXCOOL
appears.
This provides the fastest possible cooling
of the vehicle interior (when windows and
tilt/sliding sunroof roof are closed).
Defrosting
Activating
Press buttonP (
page 185).
The indicator lamp on the button
comes on.
Switch off air recirculation, if selected.

Press button, (
page 185).
The indicator lamp on the button goes
out.

Close center air vents.

Adjust side air vents upwards.
Deactivating

Press buttonP (
page 185).
The indicator lamp on the button goes
out. Defrosting is turned off.
iThese settings should only be selected
for a short time.

190 Controls in detailAutomatic climate controlAir recirculation mode
Switch to air recirculation mode to prevent
unpleasant odors from entering the vehicle
from the outside. This setting cuts off the
intake of outside air and recirculates the
air in the passenger compartment.
Activating
Press button, (
page 185).
The indicator lamp on the button
comes on.
Warning!
G
When the outside temperature is below
41°F (5°C), only switch to air recirculation
mode for short periods to prevent window
fogging.
iIf you press and hold button, the
windows and tilt/sliding sunroof will
close. Warning!
G
Never operate the windows and the tilt/slid-
ing sunroof if there is the possibility of any-
one being harmed by the closing procedure.
In the event that the procedure causes po-
tential danger, the closing of the windows
can be immediately halted by releasing
button, or by pressing the respective
window switch. The closing of the tilt/slid-
ing sunroof can be immediately halted by re-
leasing button, or by moving the
tilt/sliding sunroof switch in the overhead
control panel in any direction.
iThe air recirculation mode is activated
automatically:

at high outside temperatures


if the concentration of carbon mon-
oxide and nitrogen oxide in the out-
side air increases beyond a
predetermined level, for example in
a tunnel
Please note that the charcoal filter
must be activated (
page 191) for the
air recirculation mode to be activated
automatically.
If you have turned off the air condition-
ing (
page 193) or the outside
temperature is below 41°F (5°C), the
air recirculation mode will not switch
on automatically.

191 Controls in detail
Automatic climate control
Deactivating
Press button, (
page 185).
The indicator lamp on the button goes
out.The air recirculation mode is deactivated
automatically:


after 5 minutes if the outside tempera-
ture is below approximately 41°F (5°C)


after 5 minutes if the air conditioning is
turned off


after 30 minutes if the outside temper-
ature is above approximately 41°F
(5°C)
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.
Charcoal filter
An activated charcoal filter markedly re-
duces bad odors and removes pollutants
from air entering the passenger compart-
ment.
Activating
Press buttone (
page 185).
The indicator lamp on the button
comes on.
iIf you press and hold button, the
windows and or tilt/sliding sunroof will
return to their previous position.
A window or tilt/sliding sunroof will
only return to its previous position if it
has not been moved to another posi-
tion using the respective window
switch or tilt/sliding sunroof switch af-
ter it was closed with button,.
A window or tilt/sliding sunroof that
was moved will remain in its current po-
sition if button, is used t o re-open
the remaining windows or tilt/sliding
sunroof.
iIf you press and hold buttone the
windows and tilt/sliding sunroof will
close.


192 Controls in detailAutomatic climate control
Deactivating
Press buttone (
page 185).
The indicator lamp on the button goes
out.The system switches automatically to the
air recirculation mode if the carbon
monoxide (CO) or nitrogen oxide (NO
X)
concentration of the outside air increases
beyond a predetermined level, for example
in a tunnel.
The automatic air recirculation mode does
not function if ± mode is selected or if
the outside temperature has fallen below
41°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.
Warning!
G
Never operate the windows and the tilt/slid-
ing sunroof if there is the possibility of any-
one being harmed by the closing procedure.
In the event that the procedure causes po-
tential danger, the closing of the windows
can be immediately halted by releasing
button
e
or by pressing the respective
window switch. The closing of the tilt/slid-
ing sunroof can be immediately halted by re-
leasing buttone
or by moving the
tilt/sliding sunroof switch in the overhead
control panel in any direction.
iIf you press and hold buttone the
windows and or tilt/sliding sunroof will
return to their previous position.
A window or tilt/sliding sunroof will
only return to its previous position if it
has not been moved to another posi-
tion using the respective window
switch or tilt/sliding sunroof switch af-
ter it was closed with buttone.
A window or tilt/sliding sunroof that
was moved will remain in its current po-
sition if buttone is used to re-open
the remaining windows or tilt/sliding
sunroof.


193 Controls in detail
Automatic climate control
Rear window defroster
The rear window defroster uses a large
amount of power. To keep battery drain to
a minimum, switch off the defroster as
soon as the rear window is clear. The de-
froster is automatically deactivated after
approximately 6 to 17 minutes of opera-
tion depending on the outside tempera-
ture.
Activating
Press buttonF (
page 185).
The indicator lamp on the button
comes on.
Deactivating

Press buttonF (
page 185) again.
The indicator lamp on the button goes
out.
Air conditioning
The air conditioning is operational while
the engine is running and cools the interior
air to the temperature set by the operator.
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 button± (
page 185).
The indicator lamp on the button±
comes on.
Warning!
G
Any accumulation of snow and ice should be
removed from the rear window before driv-
ing. Visibility could otherwise be impaired,
endangering you and others.!If the rear window defroster switches
off too soon and the indicator lamp
starts flashing, this means that too
many electrical consumers are operat-
ing simultaneously and there is insuffi-
cient voltage in the battery. The system
responds automatically by deactivating
the rear window defroster.
As soon as the battery has sufficient
voltage, the rear window defroster au-
tomatically turns itself back on.
iCondensation may drip out from under-
neath the vehicle. This is normal and
not an indication of a malfunction.

194 Controls in detailAutomatic climate controlActivating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.
Press± again (
page 185).
The indicator lamp on the button±
goes out.
The air conditioning uses the refrigerant
R134a. This refrigerant is free of CFCs
which are harmful to the ozone layer.
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.
Activating
Turn the SmartKey in the starter switch
to position1 or0, or remove it from
the starter switch.

Press buttonT (
page 185).
The indicator lamp on buttonT
comes on.Deactivating

Press buttonT (
page 185).
The indicator lamp on buttonT
goes out.
The residual heat is automatically turned
off:


when the ignition is switched on


after about 30 minutes


if the battery voltage drops
!If button± on the automatic cli-
mate control panel starts to flash, this
indicates that the air conditioning is
losing refrigerant. The compressor has
turned itself off. The air conditioning
cannot be turned on again.
Have the air conditioning checked at
the nearest authorized Mercedes-Benz
Center.
iHow long the system will provide heat-
ing depends on the coolant tempera-
ture and the temperature set by the
operator. The blower will run at speed
setting 1 regardless of the air distribu-
tion control setting.

195 Controls in detail
Automatic climate control
Ventilated storage compartment
Depending on vehicle model and configu-
ration, your vehicle is equipped with a stor-
age compartment under the front armrest
(page 232) which can be ventilated
when the automatic air conditioning is
switched on. If so equipped, the switch is
located inside the storage compartment in
the front. The air temperature is about the
same as that of the center air vents.
The air volume is dependent on the setting
of:


Air distribution control


Air volume control


Air vents in the dashboard
The air temperature is about the same as
that of the dashboard air vents. It cannot
be regulated separately.Switching ventilation on

Open the storage compartment in front
of the armrest, see “Storage compart-
ment below the front armrest”
(page 232)

Push upper portion of switch.Switching ventilation off

Open the storage compartment in front
of the armrest, see “Storage compart-
ment below the front armrest”
(page 232).

Push lower portion of switch.!Do not obstruct the air vent in the stor-
age compartment.iThe compartment can get very warm
due to its confined space. When storing
heat sensitive objects in the compart-
ment, close the air vent while heating
the passenger compartment.

196 Controls in detailAutomatic climate controlRear passenger compartment adjust-able air vents
1Left center air vent, adjustable
2Right center air vent adjustable
3Thumbwheel for center air vents with
adjustable booster blowerTo open center air vents and to adjust the
booster blower:

Turn thumbwheel3.iThe booster blower allows air volume
speed to the rear passenger compart-
ment to be increased at four different
levels.
The temperature at the air vents for
rear passenger compartment1
and2 i s t h e s a m e a s a t t h e d a s h b o a r d
center air vents.