MERCEDES-BENZ S350 2006 W221 Owner's Manual

200 Controls in detailAutomatic climate controlCharcoal filter
An activated charcoal filter markedly re-
duces bad odors and removes pollutants
from air entering the passenger compart-
ment.
Activating
Press buttone (
page 193).
The indicator lamp on the button
comes on.
Deactivating

Press buttone (
page 193).
The indicator lamp on the button goes
out.
iPress and hold buttone for approx-
imately two seconds. The side windows
and tilt/sliding sunroof will close. You
can release buttone once the clos-
ing procedure has begun. The windows
and tilt/sliding sunroof continue clos-
ing until they are fully closed.
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 pressing
the respective window switch. The closing of
the tilt/sliding sunroof can be immediately
halted by moving the tilt/sliding sunroof
switch in the overhead control panel in any
direction.
The closing of the side windows and
tilt/sliding sunroof can be reversed by again
pressing and holding buttone.
iPress and hold buttone for approx-
imately two seconds. The side windows
and or tilt/sliding sunroof will return to
their previous position. You can release
buttone once the opening proce-
dure has begun. The windows and
tilt/sliding sunroof continue opening
until they have reached 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 posi-
tion if buttone is used to re-open
the remaining windows or tilt/sliding
sunroof.

201 Controls in detail
Automatic climate control
The system automatically switches 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 ± 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 193).
The indicator lamp on the button
comes on.
Deactivating

Press buttonF (
page 193) 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 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.

202 Controls in detailAutomatic climate controlAir 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 193).
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 193).
The indicator lamp on 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.
This feature makes use of the residual heat
produced by the engine.
Activating
Turn the SmartKey in the starter switch
to position1 or 0, or remove it from the
starter switch.

Press buttonT (
page 193).
The indicator lamp on buttonT
comes on.
iCondensation may drip out from under-
neath the vehicle. This is normal and
not an indication of a malfunction.
!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.

203 Controls in detail
Automatic climate control
Deactivating
Press buttonT (
page 193).
The indicator lamp on buttonT
goes out.
The residual heat is automatically turned
off:


when the ignition is switched on


after approximately 30 minutes
(15 minutes when residual heat and
ventilation in the rear* are also
switched on)


if the battery voltage drops
Ventilated storage compartment
Depending on vehicle model and configu-
ration, your vehicle is equipped with a stor-
age compartment under the front armrest
(page 244) 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 in front of armrest” (
page 244).

Push upper portion of switch.
Switching ventilation off

Open the storage compartment in front
of the armrest, see “Storage compart-
ment in front of armrest” (
page 244).

Push lower portion of switch.
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.
!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.

204 Controls in detailAutomatic climate controlRear passenger compartment adjust-able air vents
Rear center console 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.Rear side air vents
4Rear side air vent, right and left
5Air volume control for rear side air vent
To open rear side air vents:

Turn thumbwheel5 towards the win-
dow.
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 is the same as at the dashboard
center air vents.

205 Controls in detail
Automatic climate control
Rear passenger compartment climate control*
The 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.
The automatic climate control system is
adjustable individually for the rear passen-
ger compartment.
Nearly all dust particles, pollutants and
odors are filtered out before outside air en-
ters the passenger compartment through
the air distribution system.The control panel is located in the rear cen-
ter console.
Rear automatic climate control panel
iWhen the rear seats are not occupied
(rear seat belts unbuckled) the rear cli-
mate control system adopts the set-
tings of the front climate control
system.
Item
1
Left center air vent, adjustable
2
Display
3
Right center air vent, adjustable
4
Thumbwheel for air distribution
5
Temperature control, right
6
Air volume (automatic, manual)
7
Temperature control, left
8
Rear climate control system on/off
Residual engine heat utilization
(REST)
Warning!
G
Follow the recommended settings for heat-
ing and cooling as given in the instructions
for the front automatic climate control
(page 192). Otherwise the windows could
fog up, impairing visibility for the driver and
endangering you and others.

206 Controls in detailAutomatic climate controlDeactivating and reactivating the cli-
mate control system
Deactivating
It is possible to completely deactivate the
automatic climate control system. 
Press button M (
page 205).
The display shows
0.
Reactivating

Press button M (
page 205).Setting the temperature
Use temperature controls 5and7
(
page 205) to separately adjust the air
temperature on each side of the passenger
compartment. You should raise or lower
the temperature setting in small incre-
ments, preferably starting at 72°F (22°C).
Increasing/decreasing

Press button 5 or 7 repeatedly until
the display shows the desired tempera-
ture.
The automatic climate control system
will correspondingly adjust the interior
air temperature.Adjusting air distribution
Use thumbwheel4 (
page 205) to sepa-
rately adjust the air distribution in the rear
passenger compartment. The following
symbols are found on the controls:

Turn thumbwheel4 to the desired
symbol.
The air will be directed to the vents cor-
responding to this symbol.
iWhen the air conditioning is switched
off, the outside air supply and circula-
tion are also switched off. Only choose
this setting for a short time. Otherwise
the windows could fog up.
Symbol
Function
d
Directs air to the center air
vents
c
Directs air to the footwell
air vents

207 Controls in detail
Automatic climate control
Adjusting air volume
Adjusting automatically
PressA on air volume switch6
(page 205).
The display shows
AUTO
The air volume
is adjusted automatically.
Reducing air volume

Press switch6 down until the desired
air volume is reached.
The display shows the current level.
Increasing air volume

Press switch6 up until the desired air
volume is reached.
The display shows the current level.Residual heat and ventilation
With the engine switched off, it is possible
to continue to heat or ventilate the interior.
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 205).Deactivating

Press buttonT (
page 205).
The residual heat is automatically turned
off:


when the ignition is switched on


after approximately 30 minutes
(15 minutes when residual heat and
ventilation in the front are also
switched on)


if the battery voltage dropsiHow 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.

208 Controls in detailPower windowsOpening 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-
es for the respective windows are on the
front passenger door and the rear doors.
1Left front window
2Right front window
3Right rear window
4Left rear window
5Rear window override switch
(
page 77)
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 door windows are equipped with the ex-
press-close and automatic reversal func-
tion. If the 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 window, the automatic reversal function
will stop the window and open it slightly.
If the window encounters an obstruction
t h a t b l o c k s i t s p a t h i n a c i r c u m s t a n c e w h e r e
you are closing the 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 function will not op-
erate.
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 may cause an accident
and/or serious personal injury.
iYou can also open or close the win-
dows using the SmartKey, see “Sum-
mer opening feature” (
page 210) and
“Convenience closing feature”
(
page 211).
You can close and reopen the windows
using the air recirculation button,
or the charcoal filter buttone in the
climate control panel (
page 193).

209 Controls in detail
Power windows

Switch on the ignition (
page 34).
Opening the 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 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 windows
(Express-open)

Press switch1 to 4 at the
symbolk past the resistance point
and release.
The corresponding window opens com-
pletely.Fully closing the windows
(Express-close)

Press switch1 to 4 at the
symbolj past the resistance point
and release.
The corresponding window closes com-
pletely.
iOperating the windows from the rear is
not possible if you activate the override
switch (
page 77).
iWith the SmartKey in starter switch po-
sition 0 or removed from the starter
switch, the power windows can be op-
erated:

until you open the driver’s or front
passenger door


for at least five minutes
Warning!
G
If you press and hold the switch up when
closing the window, and upward movement
of the window is blocked by some obstruc-
tion including but not limited to arms, hands,
fingers, etc., the automatic reversal will not
operate.
Warning!
G
Driver’s door only:
If within five 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 window
is blocked during the closing proce-
dure, the window will stop and open
slightly. Remove the obstruction, press
the respective power window switch at
the symbolj again past the resis-
tance point and release. If the window