2007 MERCEDES-BENZ CLK63AMG window

196 Controls in detail
Climate control
Air conditioning
The cooling function, is only operational
when the engine is running, cools the vehi-
cle interior down to the selected tempera-
ture. The cooling function also
dehumidifies the air in the vehicle interior,
thus preventing the windows from fogging
up.Deactivating
It is possible to deactivate the air condi-
tioning (cooling) function of the climate
control system. The air in the vehicle will
then no longer be cooled or dehumidified.
Press button2(page 189).
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 button2(page 189) again.
The indicator lamp on the button
comes on.The air conditioning uses the
refrigerant R134a. This refrigerant is free
of CFCs which are harmful to the ozone
layer.
iCondensation may drip out from underneath
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.
!If the air conditioning cannot be turned on
again, this indicates that the air conditioning is
losing refrigerant. The compressor has turned it-
self off.
Have the air conditioning checked at the nearest
authorized Mercedes-Benz Center.

199 Controls in detail
Automatic climate control
USA only
Canada only
Item
1Left side air vent, adjustable
2Thumbwheel for air volume control
for center air vents
3Right side air vent, adjustable
4Automatic climate control panel
5Right center air vent, adjustable
6Thumbwheel for air volume control
for right side center air vent
7Thumbwheel for air volume control
for left side center air vent
8Left center air vent, adjustable
iFor draft-free ventilation, move the sliders
for the center air vents and side air vents to the
middle position.
Item
1Left side air distribution control
2Front defroster
3Temperature control, left, raising
4Display
5Air volume control, raising
6Temperature control, right, raising
7Rear window defroster
8Right side air distribution control
9Charcoal filter
aAC cooling on/off
Residual heat/ventilation
(Canada only)
bTemperature control, right, lowering
cAir volume control, lowering
dTemperature control, left, lowering
eAir recirculation
fAutomatic climate control on/off
(complete system)
gAir distribution and air volume
(automatic mode)
Item

200 Controls in detail
Automatic climate control
The automatic climate control is operation-
al whenever the engine is running. You can
operate the automatic climate control sys-
tem in either the automatic or manual
mode. The system cools or heats the inte-
rior depending on the selected interior
temperature and the current outside tem-
perature.Nearly all dust particles, pollutants and
odors are filtered out before outside air
enters the passenger compartment
through the air distribution system.
The air conditioning will not engage (no
cooling) if the A/C mode is deactivated
(
page 208).
Warning!G
When operating the automatic climate
control, the air that enters the passenger
compartment through the air vents can be
very hot or very cold (depending on the set
temperature). This may cause burns or frost-
bite on unprotected skin in the immediate
area of the air vents. Always keep sufficient
distance between unprotected parts of the
body and the air vents. If necessary, use the
air distribution controls (
page 199) to
direct the air to air vents in the vehicle inte-
rior that are not in the immediate area of un-
protected skin.
Warning!G
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.
iSevere conditions (e.g. strong air pollution)
may require replacement of the filter before its
scheduled interval. A clogged filter will reduce
the air volume to the interior.
If the vehicle interior is hot, ventilate the interior
before driving off, see “Summer opening fea-
ture” (
page 252). The automatic climate con-
trol will then adjust the interior temperature to
the set value much faster.
Keep the air intake grille in front of the wind-
shield free of snow and debris.
Do not obstruct air flow by placing objects on the
air flow-through exhaust slots below the rear
window.

201 Controls in detail
Automatic climate control
Deactivating the automatic climate
control system
Deactivating
Press button´ (page 199).
The indicator lamp on the button
comes on.
Reactivating
Make sure the ignition is switched on.
Press button´ (page 199).
The indicator lamp on the button goes
out.The previous settings are once
again in effect.Operating the automatic climate con-
trol system in automatic mode
Activating
Press buttonU (page 199) while
the engine is running.
The indicator lamp on the button
comes on. The air volume and air distri-
bution are adjusted automatically.1Temperature, left
2Blower speed
3Temperature, right
Use temperature controls3
anddor6 and b (
page 199) to
separately adjust the air temperature
on each side of the passenger compart-
ment.
The temperature of the vehicle interior
is adjusted automatically.
Deactivating
Press buttonU (page 199) again.
The indicator lamp on the button goes
out. The automatic operation of air vol-
ume and air distribution switches off.
Warning!G
When the automatic climate control is
switched off, the outside air supply and cir-
culation 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.
iWhen operating the climate control system
in automatic mode, you will only rarely need to
adjust the temperature, air volume and air distri-
bution.
In automatic mode, the dehumidify function is
switched on when the system is cooling. If nec-
essary, this function can be switched off by
pushing the button2or9 (
page 199).
iYou can switch the automatic climate con-
trol system on and off for each side of the pas-
senger compartment as desired.

204 Controls in detail
Automatic climate control
Adjusting air volume
Use buttonU (
page 199) for auto-
matic mode or air volume controls

orQ (
page 199) to adjust air volume
manually.
Seven blower speeds are available.
Press button
to decrease
orQ (
page 199) to increase air
volume to the desired level.
The indicator lamp on the buttonU
goes out.
The automatic air distribution remains
switched on.
Front defroster
You can use this setting to defrost the
windshield, for example if it is iced up.
You can also defog the windshield and the
side windows.
Activating
Press buttonP or0
(
page 199).
The indicator lamp on the button
comes on.
The air conditioning switches
automatically to the following functions:

cooling on to dehumidify

maximum blowing and heating
power

air flows onto the windshield and
the front side windows

the air recirculation mode is
switched offDeactivating
Press buttonP or0
(
page 199) again.
The indicator lamp on the button goes
out.
The previous settings are once again in
effect.
Windshield fogged on the outside
Switch the windshield wipers on
(
page 55).
If the automatic mode of the automatic cli-
mate control is switched off:
Turn air distribution control1 or8
toa orY (
page 199).
iKeep this setting selected only until the
windshield or the side windows are clear again.
iIf you have switched on the defrost function
using thePor0 button, you cannot
make any other settings.
iThe cooling remains switched on.
iKeep this setting selected only until the
windshield is clear again.

205 Controls in detail
Automatic climate control
Maximum cooling MAXCOOL
If the left and right air distribution controls
as well as the airflow volume control are
set toU (
page 199) and there is a
high need for cooling, the display
“MAXCOOL” appears.
This provides the fastest possible cooling
of the vehicle interior (when side windows
and soft top 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 199).
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 208) is activated, or
press buttonP or 0.
iThe air recirculation mode is activated auto-
matically at high outside temperatures.
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 approxi-
mately 30 minutes.

206 Controls in detail
Automatic climate control
Deactivating
Press button, (page 199).
The indicator lamp on the button goes
out.Air recirculation mode with conve-
nience closing or opening featureConvenience closingPress and hold button,
(
page 199) until the windows are
closed or have reached the desired po-
sition. The indicator lamp on the button
comes on. The air recirculation mode is
activated.
Convenience opening
Press and hold button,
(
page 199) until the windows have
return to their previous position or they
have reached the desired position. The
indicator lamp on the button goes out.
The air recirculation mode is deactivat-
ed.
iThe air recirculation mode is deactivated au-
tomatically:

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

after 5 minutes if the air conditioning is
turned off

after 30 minutes if the outside temperature
is above approximately 41°F (5 °C)
Warning!G
Never operate the side windows and the
tilt/sliding sunroof* if there is the possibility
of anyone being harmed by the closing
procedure.
When using the air recirculation mode with
convenience closing feature, should the up-
ward movement of a window be blocked by
some obstructions including but not limited
to arms, hands, fingers. etc., the automatic
reversal feature will not operate.
In the event that the procedure causes
potential danger, the closing of the side
windows can be immediately halted by
releasing the, button or by pressing or
pulling the respective window switch.
iA side window will only return to its previous
position if it has not been moved to another po-
sition using the respective side window switch
after it was closed with button,. A side win-
dow that was moved will remain in its current po-
sition if button, is used to re-open the
remaining side windows.

207 Controls in detail
Automatic climate control
Charcoal filter
An activated charcoal filter markedly
reduces bad odors and removes pollutants
from air entering the passenger compart-
ment. The charcoal filter can be activated
or deactivated.
The system switches automatically to the
air recirculation mode, if the

charcoal filter is switched on.

carbon monoxide (CO) or nitrogen
oxide (NO
X) concentration of the out-
side air increases beyond a predeter-
mined level.
Activating
Press buttone (page 199).
The indicator lamp on the button
comes on.Deactivating
Press buttone (page 199).
The indicator lamp on the button goes
out.
iThe automatic air recirculation mode does
not function if theA/C (indicator lamp on
button2 or 9 not lit) mode is deactivat-
ed, or if the outside temperature has fallen
below 41°F (5°C).
iIf you press and hold buttone, the side
windows will close.
iThe 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 side windows if there is
the possibility of anyone being harmed by
the closing procedure.
When using the charcoal filter with conve-
nience closing feature, should the upward
movement of a window be blocked by some
obstructions including but not limited to
arms, hands, fingers. etc., the automatic re-
versal feature will not operate.
In the event that the procedure causes po-
tential danger, the closing of the side win-
dows can be immediately halted by
releasing thee button or by pressing or
pulling the respective window switch.
iIf you press and hold buttone, the side
windows will return to their previous position.
A side window will only return to its previous po-
sition if it has not been moved to another posi-
tion using the respective side window switch
after it was closed with buttone. A side win-
dow that was moved will remain in its current po-
sition if button e is used to re-open the
remaining side windows.