2004 MERCEDES-BENZ CLK55AMG COUPE window

174 Controls in detailAutomatic climate controlThe automatic climate control is operation-
al whenever the engine is running. You can
operate the climate control system in ei-
ther the automatic or manual mode. The
system cools or heats the interior depend-
ing on the selected interior temperature
and the current outside temperature.Nearly all dust particles, pollutants and
odors are filtered out before outside air en-
ters the passenger compartment through
the air distribution system.
The air conditioning will not engage (no
cooling) if the ° mode is selected
(
page 181).
Warning
G
When operating the automatic climate con-
trol, the air that enters the passenger com-
partment through the air vents in the
footwell can be very hot or very cold (de-
pending on the set temperature). This may
cause burns or frostbite on unprotected skin
in the immediate area of the air vents. Al-
ways keep sufficient distance between un-
protected parts of the body and the footwell
air vents. If necessary change the air flow
using the air distribution controls to direct
the air away from the footwell air vents
(page 176).
Warning!
G
Follow the recommended settings for heat-
ing and cooling given on the following pag-
es. Otherwise the windows could fog up,
impairing visibility and endangering you and
others.
iSevere conditions (e.g. strong air pollu-
tion) may require replacement of the fil-
ter 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.
Keep the air intake grille in front of the
windshield free of snow and debris.
Do not obstruct air flow by placing ob-
jects on the air flow-through exhaust
slots below the rear window.

176 Controls in detailAutomatic climate controlAdjusting air distribution
Use the air distribution controls7 and9
(page 172) to separately adjust the air
distribution on each side of the passenger
compartment. The following symbols are
found on the controls:Adjusting manually

Press left or right U button.
The U pops out, the a, Z,
X and Y symbols are visible.
Air distribution can be adjusted manu-
ally.
Adjusting automatically

Press left or right U button again.
The a, Z, X and Y sym-
bols are no longer visible.
The air distribution is adjusted auto-
matically.Windshield fogged on the outside

Switch the windshield wipers on, see
“Windshield wipers” (
page 48).

Switch to manual mode.

Close the air vent at dashboard top
center.

Turn the air distribution control
toa orY.
Symbol
Function
a
Directs air through the center,
side and rear passenger com-
partment air vents
Z
Directs air to the windows
X
Directs air into the entire vehi-
cle interior
Y
Directs air to the footwells

177 Controls in detail
Automatic climate control
Adjusting air volume
Adjusting manually
Seven blower speeds are available.
Press leftM or rightQ s i d e o f a i r
volume control switch until the re-
quested blower speed is attained.
The display “AUTO” disappears and the
automatic mode is switched off. The
selected blower speed is shown in the
display.
Adjusting automatically

Press left or right U button until it
clicks in.
The a, Z, X and Y sym-
bols are no longer visible.
The air volume is adjusted
automatically.
Maximum cooling MAXCOOL
If the left and right air distribution controls
as well as the airflow volume control are
set toU and there is a high need for
cooling, the display “MAXCOOL” appears.
This provides the fastest possible cooling
of the vehicle interior (when windows and
sliding/pop-up roof are closed).
Defrosting
Activating
Press buttonP (
page 173).
The indicator lamp on the button
comes on.
Switch off air recirculation, if selected.

Press button, (
page 173).
The indicator lamp on the button goes
out.

Close center air vents.

Adjust side air vents upwards.
Deactivating

Press buttonP (
page 173).
The indicator lamp on the button goes
out. Defrosting is turned off.
iThese settings should only be selected
for a short time.

178 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 173).
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 keep button, pressed, the
side windows and the sliding/pop-up
roof* will close.Warning
G
Never operate the side windows and the
sliding/pop-up roof* if there is the possibil-
ity of anyone being harmed by the closing
procedure.
In the event that the procedure causes po-
tential danger, the closing of the side win-
dows can be immediately halted by
releasing the, button or by pressing or
pulling the respective window switch. The
closing of the sliding/pop-up roof* can be
immediately halted by releasing the,
button or by moving the sliding/pop-up
roof* 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, for example in a
tunnel
Please note that the charcoal filter
must be activated (
page 179) for the
air recirculation mode to be activated
automatically.
If you have turned off the air condition-
ing system (
page 181) or the outside
temperature is below 41°F (5°C), the
air recirculation mode will not switch
on automatically.

179 Controls in detail
Automatic climate control
Deactivating
Press button, (
page 173).
The indicator lamp on the button goes
out.
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 173).
The indicator lamp on the button
comes on.
iIf you keep button, pressed, the
side windows and the sliding/pop-up
roof* will return to their previous
position.
iThe air recirculation mode is deactivat-
ed automatically:

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


after five minutes if the air condi-
tioning is turned off


after 30 minutes if the outside tem-
perature is above approximately
41°F (5 °C)
At outside temperatures above 79°F
(26 °C) the system will not automatical-
ly switch back to outside air. A quantity
of outside air is added after approxi-
mately 30 minutes.
iIf you keep buttone pressed, the
side windows and the sliding/pop-up
roof* will close.

180 Controls in detailAutomatic climate controlDeactivating
Press buttone (
page 173).
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.
The automatic air recirculation mode does
not function if economy mode ° is se-
lected 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.Deactivating the climate control
system
Deactivating
It is possible to deactivate the automatic
climate control system.
Press buttonM (
page 173) until
the display is cleared.
The climate control system is deacti-
vated.
Reactivating

Press button Q (
page 173).
Warning
G
Never operate the side windows and the
sliding/pop-up roof* if there is the possibil-
ity of anyone being harmed by the closing
procedure.
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. The
closing of the sliding/pop-up roof* can be
immediately halted by releasing thee
button or by moving the sliding/pop-up
roof* switch in the overhead control panel in
any direction.
iIf you keep buttone pressed, the
side windows and the sliding/pop-up
roof* will return to their previous
position.
iWhen the automatic climate control
system is deactivated, the air flow and
circulation are also switched off.
Only choose this setting temporarily to
prevent the windows from fogging up.

181 Controls in detail
Automatic climate control
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 173).
The indicator lamp on the button°
comes on.Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.

Press° again (
page 173).
The indicator lamp on the button°
goes out.
The air conditioning system uses the refrig-
erant 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 o r r e m o v e i t f r o m t h e
starter switch.

Press button° (
page 173).
The indicator lamp on button°
comes on.
iCondensation may drip out from under-
neath the vehicle. This is normal and
not an indication of a malfunction.
!If the° button on the automatic cli-
mate control panel starts to flash, this
indicates that the air conditioning sys-
tem is losing refrigerant. The compres-
sor has turned itself off. The air
conditioning cannot be turned on
again.
Have the air conditioning system
checked at the nearest authorized
Mercedes-Benz Center.

210 Controls in detailPower windows
Power windowsOpening and closing the windows
The side windows can be opened and
closed electrically. The switches for all the
side windows are on the driver’s door. The
switches for the respective windows are
on the front passenger door and the rear
side trim panels.
1Left front window
2Right front window
3Right rear window
4Left rear window
5Rear window override switch
(
page 74)
Warning!
G
When closing the windows, make sure there
is no danger of anyone being harmed by the
closing procedure.
The closing of the door windows can be im-
mediately halted by releasing the switch or,
if switch was pulled past the resistance
point and released, by either pressing or
pulling the respective switch.
The closing of the rear side windows can be
immediately halted by releasing the switch.
The door windows are equipped with the ex-
press-close and automatic reversal func-
tion. If a door window encounters an
obstruction that blocks its path in a circum-
stance where you pulled the switch past the
resistance point and released it to close the
window, the automatic reversal function will
stop the window and open it slightly.
If a door window encounters an obstruction
that blocks its path in a circumstance where
you are closing the window by pulling and
holding the switch, by pressing and holding
button
‹
on the SmartKey, or by press-
ing and holding the lock button
(vehicles with KEYLESS-GO*) on the door
handle, the automatic reversal function will
not operate.
When leaving the vehicle, always remove the
SmartKey from starter switch, take the
SmartKey with KEYLESS-GO* with you, and
lock your vehicle. Do not leave children un-
attended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment can cause an accident
and/or serious personal injury.