2003 MERCEDES-BENZ CLK500 COUPE window

160 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 155).
The indicator lamp on the button lights
up.
Deactivating

Press button
,
(page 155).
The indicator lamp on the button goes
out.
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 be closed.
The 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 161) for the
air recirculation mode to be activated
automatically.
If you have turned off the air condition-
ing system (
page 163) or the outside
temperature is below 41°F (5°C), the
air recirculation mode will not switch on
automatically.
iIf you keep button
,
pressed, the
side windows and the sliding/pop-up
roof will be returned to their previous
position.

161 Controls in detail
Automatic climate control
The air recirculation mode is deactivated
automatically:

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


after five 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 button
e
(page 155).
The indicator lamp on the button lights
up.
Deactivating

Press button
e
(page 155).
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 AC
OFF
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.
iIf you keep button
e
pressed, the
side windows and the sliding/pop-up
roof will be closed.
iIf you keep button
e
pressed, the
side windows and the sliding/pop-up
roof will be returned to their previous
position.

162 Controls in detailAutomatic climate controlRear 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 button
F
(page 155).
The indicator lamp on the button lights
up.
Deactivating

Press button
F
(page 155) again.
The indicator lamp on the button goes
out.
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 blinking, 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.

163 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 buttonAC
OFF
(page 155).
The indicator lamp on the
buttonAC
OFF
lights up.Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.

PressAC
OFF
again (
page 155).
The indicator lamp on the
buttonAC
OFF
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 key in the starter switch to
position1 o r r e m o v e i t f r o m t h e s t a r t e r
switch.

Press button
T
(page 155).
The indicator lamp on button
T

comes on.
iCondensation may drip out from under-
neath the vehicle. This is normal and
not an indication of a malfunction.
!If theAC
OFF
button on the automatic
climate control panel starts to blink,
this indicates that the air conditioning
system is losing refrigerant. The com-
pressor 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.

187 Controls in detail
Power windows
Power windows
Opening 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 on the
rear side trim panels.
1Left front window
2Right front window
3Left rear window
4Right rear window

Turn key in the starter switch to
position1 or2.
Opening the windows

Press switch to resistance point.
The window will move downwards until
you release the switch.
Closing the windows

Pull on switch.
The window will move upwards until
you release the switch.
Warning!
G
When closing the windows, make sure that
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.
If the window encounters an obstruction
that blocks its path in a circumstance 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 the window encounters an obstruction
that blocks its path in a circumstance where
you are closing the window by pulling the
switch to its resistance point and holding it
there, by pressing and holding button ‹
on the SmartKey, or by pressing and holding
the lock button (vehicles with
KEYLESS-GO*) on the door handle,
the automatic reversal function will not op-
erate.
When leaving the vehicle, always remove the
key from starter switch, take the SmartKey
with KEYLESS-GO* (if so equipped) with
you, and lock your vehicle. Do not leave chil-
dren unattended in the vehicle, or with ac-
cess to an unlocked vehicle. Unsupervised
use of vehicle equipment can cause an acci-
dent and/or serious personal injury.

188 Controls in detailPower windowsIf you pull and hold the switch up when
closing the window, and upward move-
ment of the window is blocked by some ob-
struction including but not limited to arms,
hands, fingers etc., the automatic reversal
will not operate.
Fully opening windows
Press switch past resistance point and
release.
The window opens completely.
Fully closing windows

Pull switch past resistance point and
release.
The window closes completely.
If the upward movement of the window is
blocked during the closing procedure, the
window will stop and open slightly.Stopping windows

Press or pull respective switch again.Opening and closing the windows with
the SmartKey
The sliding/pop-up roof will also be
opened or closed when you operate the
power windows with the key.Warning!
G
Driver's door only:
If within five seconds you again pull the
switch past the resistance point and re-
lease, the automatic reversal will not func-
tion.iYou can also open or close the win-
dows using the:

SmartKey, see below


button
,
in the control panel of
the automatic climate control
(
page 155).


button
e
in the control panel of
the automatic climate control
(
page 155).
Warning!
G
Never operate the windows or slid-
ing/pop-up roof if there is the possibility of
anyone being harmed by the opening or
closing procedure.
In case the procedure causes potential dan-
ger, the procedure can be immediately halt-
ed by releasing the remote control button.
To reverse direction of movement press

Œ
for opening or
‹
for closing.

189 Controls in detail
Power windows

Aim transmitter eye at the front door
handle.
Opening (Summer opening feature)

Press and hold button
Œ
after un-
locking the vehicle.
The windows and sliding/pop-up roof
begin to open after approximately one
second.

Release transmit button to interrupt
procedure.Closing (Convenience feature)

Press and hold button
‹
after lock-
ing the vehicle.
The windows and sliding/pop-up roof
begin to close after approximately one
second.

Release transmit button to interrupt
procedure.
Ensure that all side windows and the slid-
ing/pop-up roof are properly closed before
leaving the vehicle.
Closing the side windows and
sliding/pop-up roof with KEYLESS-GO

Press and hold lock button at door
(page 53) until the side windows and
the sliding/pop-up roof are closed.
Synchronizing power windows
The power windows must be resynchro-
nized each time after the battery has been
disconnected:
Pull the power window switches until
the side windows are closed and hold
the switches for approximately one
second.Warning!
G
When closing the windows and the slid-
ing/pop-up roof, be sure that there is no
danger of anyone being harmed by the clos-
ing procedure.
If potential danger exists, proceed as fol-
lows:

Release the lock button.


Pull on the door handle and hold firmly.
The side windows and the
sliding/pop-up roof will open for as long
as the door handle is held but the door
not opened.

191 Controls in detail
Sliding/pop-up roof*
Stopping the sliding / pop-up roof
Move the switch in any direction.
If the movement of the sliding/pop-up
roof is blocked during the closing pro-
cedure, the roof will stop and reopen
slightly.
Opening and closing the sliding/pop-up
roof with the SmartKey
The power windows will also be opened or
closed when you operate the slid-
ing/pop-up roof with the key.

Aim transmitter eye at the front door
handle.
Opening

Press and hold button
Œ
after un-
locking the vehicle.
The windows and sliding/pop-up roof
begin to open after approximately one
second.

Release transmit button to interrupt
procedure.
iYou can also open or close the slid-
ing/pop-up roof using the:

SmartKey (
page 188)


button
,
in the control panel of
the automatic climate control
(
page 155)


button
e
in the control panel of
the automatic climate control
(
page 155)
!To avoid damaging the seals, do not
transport any objects with sharp edges
which can stick out of the slid-
ing/pop-up roof.
The sliding/pop-up roof can be opened
or closed manually should an electrical
malfunction occur (
page 314).
Warning!
G
Never operate the windows or slid-
ing/pop-up roof if there is the possibility of
anyone being harmed by the opening or
closing procedure.
In case the procedure causes potential dan-
ger, the procedure can be immediately halt-
ed by releasing the remote control button.
To reverse direction of movement press

Œ
for opening or
‹
for closing