2005 MERCEDES-BENZ CL55AMG roof

192 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 188).
The indicator lamp on the button
comes on.
Deactivating

Press button, (
page 188).
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 close.
Warning!
G
Never operate the side windows and the
tilt/sliding sunroof if there is the possibility
of anyone being harmed by the closing pro-
cedure.
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 the
respective window switch. The closing of the
tilt/sliding sunroof can be immediately halt-
ed by releasing the, button or by mov-
ing 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 193) for the
air recirculation mode to be activated
automatically.
If you have turned off the air condition-
ing (
page 195) or the outside
temperature is below 41°F (5°C), the
air recirculation mode will not switch
on automatically.

193 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 buttone (
page 188).
The indicator lamp on the button
comes on.
Deactivating

Press buttone (
page 188).
The indicator lamp on the button goes
out.
iIf you keep button, pressed, the
side windows and the sliding / pop-up
roof will return to their previous posi-
tion.
iIf you keep buttone pressed, the
side windows and the sliding / pop-up
roof will close.
Warning!
G
Never operate the side windows and the
tilt/sliding sunroof if there is the possibility
of anyone being harmed by the closing pro-
cedure.
In the event that the procedure causes po-
tential danger, the procedure can be imme-
diately halted by releasing thee button
or by pressing the respective window
switch. The closing of the tilt/sliding sun-
roof can be immediately halted by releasing
thee button or by moving the tilt/slid-
ing sunroof switch in the overhead control
panel in any direction.

194 Controls in detailAutomatic climate controlThe 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.
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 188).
The indicator lamp on the button
comes on.
Deactivating

Press buttonF (
page 188) again.
The indicator lamp on the button goes
out.
iIf you keep buttone pressed, the
side windows and the sliding / pop-up
roof will return to their previous posi-
tions.
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.

201 Controls in detail
Power windows
Summer opening feature
If the weather is warm, you can ventilate
the vehicle before driving off by simulta-
neously:

opening the side windows


opening the tilt/sliding sunroof


turning on the seat ventilation* for the
driver’s seat

Aim transmitter eye of the SmartKey or
SmartKey with KEYLESS-GO* at the
driver’s outside door handle.

Press and hold button Πuntil the
windows and tilt/sliding sunroof have
reached the desired position.

Release button Πto interrupt pro-
cedure.
Convenience closing feature
When you lock the vehicle, you can close
the windows and tilt/sliding sunroof simul-
taneously. 
Aim transmitter eye of the SmartKey or
SmartKey with KEYLESS-GO* at the
driver’s outside door handle
(page 201).

Press and hold button ‹ until the
windows and tilt/sliding sunroof are
completely closed.

Release button ‹ to interrupt pro-
cedure.
iThe seat ventilation* for the driver’s
seat is automatically set to the highest
level if activated via summer opening
feature.

202 Controls in detailPower windowsVehicles with KEYLESS-GO*:
Press and hold button ‹ or the lock
button at the outside door handle
(page 60) until the side windows and
the tilt/sliding sunroof are completely
closed.

Release button Πor the lock button
at the outside door handle to interrupt
procedure.
Warning!
G
When closing the windows and the tilt/slid-
ing sunroof, make sure that there is no dan-
ger of anyone being harmed by the closing
procedure.
If potential danger exists, proceed as fol-
lows:

Release button
‹
to reverse direc-
tion of movement, press button
Œ
or
opening or button
‹
for closing.
Vehicles with KEYLESS-GO*:


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

203 Controls in detail
Power tilt/sliding sunroof
Power tilt/sliding sunroof
Opening and closing the power tilt/sliding sunroof
The tilt/sliding sunroof can be opened and
closed electrically. The switch for the
tilt/sliding sunroof is on the overhead con-
trol panel.
1Push up to raise sunroof at rear
2Pull down to lower sunroof at rear
3Push forward to slide sunroof closed
4Push back to slide sunroof openWith the sunroof closed or tilted open, a
screen can be slid into the roof opening to
guard against sun rays. When sliding the
sunroof open, the screen will also retract.
Warning!
G
When closing the tilt/sliding sunroof, make
sure that there is no danger of anyone being
harmed by the closing procedure.
The closing procedure of the tilt/sliding sun-
roof can be immediately halted by releasing
the switch or, if the switch was moved past
the resistance point and released, by mov-
ing the switch in any direction.
The tilt/sliding sunroof is made out of glass.
In the event of an accident, the glass may
shatter. This may result in an opening in the
roof.
In a vehicle rollover, occupants not wearing
their seat belts or not wearing them properly
may be thrown out of the opening. Such an
opening also presents a potential for injury
for occupants wearing their seat belts
properly as entire body parts or portions of
them may protrude from the passenger
compartment.

204 Controls in detailPower tilt/sliding sunroof

Switch on ignition (
page 34).
Opening and closing the power
tilt/sliding sunroof

To open, close, raise or lower the
tilt/sliding sunroof, move the switch to
resistance point in the required
direction1to4.

Release the sunroof switch when the
tilt/sliding sunroof has reached the de-
sired position.
Fully opening (Express-open) and clos-
ing (Express-close) the power the
tilt/sliding sunroof

To open, close, raise or lower the
tilt/sliding sunroof, move the switch
past the resistance point in the re-
quired direction1to4 and release.
The tilt/sliding sunroof opens or closes
completely.
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended 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.!To avoid damaging the seals, do not
transport any objects with sharp edges
which can stick out of the tilt/sliding
sunroof.
Do not open the tilt/sliding sunroof if
there is snow or ice on the roof, as this
could result in malfunctions.
The tilt/sliding sunroof can be opened
or closed manually should an electrical
malfunction occur (
page 370).
iYou can also open or close the tilt/slid-
ing sunroof using the SmartKey, see
“Summer opening feature”
(page 201) and “Convenience clos-
ing feature” (
page 201).
You can close and reopen the tilt/slid-
ing sunroof using the air recirculation
button, or the charcoal filter
buttone in the climate control pan-
el (
page 188).
iWith the SmartKey in starter switch po-
sition 0 or removed from the starter
switch, the tilt/sliding sunroof can be
operated

until you open the driver’s or pas-
senger door


for up to approximately five min-
utes.

205 Controls in detail
Power tilt/sliding sunroof
Stopping the power tilt/sliding sunroof
during Express-operation
Move the switch in any direction.
Synchronizing the power tilt/sliding
sunroof
The tilt/sliding sunroof must be synchro-
nized

after the battery has been
disconnected or discharged


after the tilt/sliding sunroof has been
closed manually (
page 370)


the tilt/sliding sunroof does not open
smoothly


after a malfunction

Switch on ignition (
page 34).

Press and hold the sunroof switch in di-
rection of arrow1 until the tilt/sliding
sunroof is fully raised at the rear.
Keep holding the sunroof switch in the
direction of arrow1 for approximately
one second.

Check the Express-open feature
(page 204).
If the tilt/sliding sunroof opens com-
pletely, the sunroof is synchronized.
Otherwise repeat the above steps.
iThe selecting a tilt/sliding sunroof
opening position feature is activated
for Canada vehicles, but deactivated
for U.S. vehicles at the factory. If you
wish to have it activated, contact an au-
thorized Mercedes-Benz Center.
To select a tilt/sliding sunroof opening
position, press the sunroof switch to
the resistance point and release it
when the tilt/sliding sunroof has
reached the desired position. The
tilt/sliding sunroof now opens to the
position set when the sunroof switch is
pressed past the resistance point in the
“open” direction.
iIf the movement of the tilt/sliding sun-
roof is blocked during the closing pro-
cedure, the sunroof will stop and
reopen slightly.