MERCEDES-BENZ CL500 2006 C215 Owner's Manual

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.

197 Controls in detail
Power windows
Power windows
Opening and closing the power windows
The side windows are opened and closed
electrically. The switches for all side win-
dows are on the driver’s door. The switch
for the front passenger door window is on
the front passenger door.
1Left door window
2Right door window
3Right rear side window
4Left rear side window
5Rear side windows override switch
(
page 78)The additional switches for the rear side
windows are on the rear center console.
6Left rear side window
7Right rear side window
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 the switch was pressed past the resis-
tance point and released, by pressing the re-
spective 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 pressed the switch past
the resistance point and released it to close
the door window, the automatic reversal
function will stop the door window and open
it slightly.
If the door window encounters an obstruc-
tion that blocks its path in a circumstance
where you are closing the door window by
pressing and holding the switch, by pressing
and holding button ‹ on the SmartKey,
by pressing and holding the lock button
(vehicles with KEYLESS-GO*) on an outside
door handle, or by pressing and holding
button
,
or button
e
on the climate
control panel, the automatic reversal func-
tion will not operate.


198 Controls in detailPower windows

Switch on the ignition (
page 34).
Opening the power windows

Press switch1 to 4 at the
symbolk to the resistance point.
The corresponding window will move
downwards until you release the
switch.Closing the power windows

Press switch1 to 4 at the
symbolj to the resistance point.
The corresponding window will move
upwards until you release the switch.
Fully opening the power windows
(Express-open)

Press switch1 to 4 at the
symbolk past the resistance point
and release.
The corresponding window opens com-
pletely.
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 unattended in the ve-
hicle, or with access to an unlocked vehicle.
Unsupervised use of vehicle equipment may
cause an accident and/or serious personal
injury.iYou can also open or close the side
windows and power tilt/sliding sunroof
using the SmartKey or SmartKey with
KEYLESS-GO*, see “Summer opening
feature” (
page 200) and
“Convenience closing feature”
(
page 200).
Depending on current position, the win-
dows may also open or close when the
air recirculation button, or the
charcoal filter buttone in the
climate control panel (
page 185) is
pressed and held.
iOperating the rear side windows from
the rear is not possible if you activate
the override switch (
page 78).
iWith the SmartKey in starter switch po-
sition 0 or removed from the starter
switch, the door windows can be oper-
ated:

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


for at least 5 minutes
Warning!
G
If you press and hold the switch up when
closing a door 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.


199 Controls in detail
Power windows
Fully closing the power windows
(Express-close)
Press switch1 to 2 at the
symbolj past the resistance point
and release.
The corresponding window closes com-
pletely.
Stopping power windows during
Express-operation

Briefly press the respective window
switch again.
Synchronizing the power windows
The windows must be synchronized each
time

after the battery has been disconnect-
ed


if the windows cannot be fully opened
(Express-open) or closed
(Express-close)
Each window must be synchronized.

Close all doors.

Switch on the ignition (
page 34).

Press and hold switches1 to 4 at
the symbolj until the windows are
completely closed.

Hold on to switches1 to 4 for ap-
proximately 1 second.
The windows are synchronized.
Warning!
G
Driver’s door only:
If within 5 seconds you again press the
switch past the resistance point and re-
lease, the automatic reversal will not func-
tion.
!If the upward movement of the door
window is blocked during the closing
procedure, the door window will stop
and open slightly. Remove the obstruc-
tion, press the respective door window
switch at the symbolj again past
the resistance point and release. If the
door window still does not close when
there is no obstruction, press and hold
the respective door window switch at
the symbolj. The door window will
then close without the obstruction sen-
sor function.