MERCEDES-BENZ S350 2006 W221 Owner's Manual

190 Controls in detailGood visibilitySun visors
The sun visors protect you from sun glare
while driving.Glare from the front
1Mounting
2Sun visor

Swing sun visor2 down.Glare from the front and sides

Swing sun visor2 down.

Disengage sun visor2 from
mounting1.

Pivot sun visor to the side.
Warning!
G
Do not use the vanity mirror while driving.
Keep the mirrors in the sun visors closed
while vehicle is in motion. Reflected glare
can endanger you and others.iFor information on vanity mirrors
(page 241).

191 Controls in detail
Good visibility
Rear window sunshade
The switch is located on the upper part of
the front center console.
1Rear window sunshade switch
Switch on the ignition (
page 34).

Press switch 1 briefly to raise the sun-
shade.

Press switch 1 briefly to lower the
sunshade.
Always raise the sunshade fully for its sup-
port against the window frame.
Rear side window sunshade*
To raise sunshade pull on the tab and
engage in holder.

To lower sunshade disengage tab and
guide retraction.
Warning!
G
When operating the rear window sunshade,
be sure that there is no danger of anyone be-
ing harmed by the raising or lowering proce-
dure.
The raising or lowering procedure can be im-
mediately reversed by pressing switch1.Warning!
G
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.
!Always guide the sunshade. Do not let
it snap back abruptly, as the retractor
could be damaged.

192 Controls in detailAutomatic climate control

193 Controls in detail
Automatic climate control
Automatic climate control panel
Item
1
Left center air vent, adjustable
2
Left air vent, fixed
3
Thumbwheel for air volume control
for left center air vent
4
Thumbwheel for air temperature
control for center air vents
5
Thumbwheel for air volume control
for right center air vent
6
Right air vent, fixed
7
Right center air vent, adjustable
8
Side defroster vent, fixed
9
Side air vent, adjustable
a
Thumbwheel for air volume control
for side air vents
b
Door air vent
c
Automatic climate control panel
iFor draft-free ventilation, move the slid-
ers for the center air vents 1, 7, 9
to the middle position.
Item
1
Windshield defroster
2
Rear window defroster
3
Display
4
Residual engine heat utilization
(REST)
5
Automatic climate control on/off
6
Air distribution, right (automatic,
manual)
7
AC cooling on/off
8
Right side temperature control
9
Air volume (automatic, manual)
a
Left side temperature control
b
Air recirculation
c
Air distribution, left (automatic, man-
ual)
d
Activated charcoal filter

194 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 202).
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 196).
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.
iThe current climate control settings
(ON/OFF, temperature, air volume, ac-
tivated charcoal filter, etc.) are stored
for each SmartKey before it is removed
from the starter switch or when the ve-
hicle is locked using the SmartKey with
KEYLESS-GO* (
page 108).
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, leaves, sticks,
and any other debris.
Do not obstruct air volume by placing
objects on the air volume-through ex-
haust slots below the rear window.
iWhen operating the climate control
system in automatic mode, you will
only rarely need to adjust the tempera-
ture, air volume and air distribution.

195 Controls in detail
Automatic climate control
Deactivating the climate control sys-tem
Deactivating
It is possible to completely deactivate the
automatic climate control system. 
Press button M (
page 193).
The display shows
0.
Reactivating

Press button M (
page 193).
Setting the temperature
Use temperature controls aand8
(page 193) 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 a or 8 repeatedly until
the display shows the desired tempera-
ture.
The automatic climate control system
will correspondingly adjust the interior
air temperature.
Adjusting the temperature for center
air vents
When outside temperatures are low, you
can manually raise the air temperature for
the center and side air vents. The
thumbwheel4 is located between the
center air vents (
page 192).Automatic temperature control

Turn thumbwheel 4 to A.
The indicator lamp above the thumb-
wheel comes on. The temperature is
automatically adjusted to the set value.
Turning on warm air

Turn thumbwheel4 in the direction of
the white marking.
Warm air will enter from the center air
vent.
Turning on cooler air

Turn thumbwheel4 in the direction of
the blue marking.
Cooler air will enter from the center air
vent.
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.

196 Controls in detailAutomatic climate controlAdjusting air distribution
Use air distribution controlsc and6
(page 193) 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 buttonU.
The buttonU will pop out.
The button emerges and theh,
», d and csymbols become
visible.

Turn the marking on the regulator to
the desired symbol.
The air will be directed to the vents cor-
responding to this symbol.
Adjusting automatically

Press left or right buttonU until it
clicks in.
Theh, », d and c sym-
bols are no longer visible.
The air distribution is adjusted auto-
matically.
Windows fogged on the inside

Press button± to switch on the air
conditioning (
page 193).
The indicator lamp in the button goes
out.

Press button, to switch off the air
recirculation (
page 193).
The indicator lamp on the button goes
out.

Make sure left and right buttonU
emerges.
Theh, », d and c sym-
bols become visible.

Press left and right buttond.

Set blower to the maximum speed.

Adjust left and right air vents1
and7 upwards (
page 192).

Increase temperature setting.

Open side air vents9 and direct them
onto the side windows (
page 192).
Windshield fogged on the outside

Switch the windshield wipers on
(page 52).

Press on both buttons U until they
click in.
Theh, », d and c sym-
bols are no longer visible.
Symbol
Function
h
Directs air through the cen-
ter air vents
d
Directs air to the windows
»
Directs air into the entire
vehicle interior
c
Directs air to the footwells

197 Controls in detail
Automatic climate control
Adjusting air volume
Use air volume control9 (
page 193) for
both automatic and manual air volume ad-
justment.
Adjusting automatically

PressA on air volume switch9
(page 193).
The display shows
AUTO
. The air volume
is adjusted automatically.
Adjusting manually
Reducing air volume

Press switch9 down until the desired
air volume is reached.
The display shows the current level.
Increasing air volume

Press switch9 up until the desired air
volume is reached.
The display shows the current level.
Maximum cooling MAXCOOL
If the left and right air distribution controls
as well as the air volume control are set
toU and there is a high need for cool-
ing, the display
AUTO MAXCOOL
appears.
This provides the fastest possible cooling
of the vehicle interior (when windows and
tilt/sliding sunroof are closed).
Defrosting
Activating
Press buttonP (
page 193).
The indicator lamp on the button
comes on.

Switch off air recirculation, if selected.

Press button, (
page 193).
The indicator lamp on the button goes
out.

Close center air vents.

Adjust side air vents upwards.
Deactivating

Press buttonP (
page 193).
The indicator lamp on the button goes
out. Defrosting is turned off.
iThese settings should only be selected
for a short time.

198 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 193).
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.
iPress and hold button, for approx-
imately two seconds. The side windows
and tilt/sliding sunroof will close. You
can release button, 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 the
tilt/sliding sunroof can be reversed by again
pressing and holding button,.

199 Controls in detail
Automatic climate control
Deactivating
Press button, (
page 193).
The indicator lamp on the button goes
out.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.
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 200) for the
air recirculation mode to be activated
automatically.
If you have turned off the air condition-
ing (
page 202) or the outside tem-
perature is below 41°F (5°C), the air
recirculation mode will not switch on
automatically.
iPress and hold button, for approx-
imately two seconds. The side windows
and or tilt/sliding sunroof will return to
their previous position. You can release
button, 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 button,. A
window or tilt/sliding sunroof that was
moved will remain in its current posi-
tion if button, is used to re-open
the remaining windows or tilt/sliding
sunroof.