climate settings MERCEDES-BENZ S-Class 2008 W221 Comand Manual

280 Control systemsCOMAND automatic climate control
In the climate control settings, “)”
appears in the central menu. The rear
climate control can be operated from
the front.
Climate control settings, rear climate
control1Rear temperature, left
2Rear air distribution, left
3Rear air volume
4Central menu for rear climate control
5Rear air distribution, right
6Rear temperature, rightThe rear climate control is operated in the
same manner as the climate control sys-
tem for the driver’s and front passenger’s
side (
page 273).
Central menu for rear climate control
In the central menu for the rear climate
control, you can:


switch back to operating the front cli-
mate control system


switch off the rear climate control


switch the automatic function of the
rear climate control from automatic to
manual

Select climate control settings
Cen-
tral climate control menu.


281 Control systems
COMAND automatic climate control
Switching off rear climate control oper-
ation from the front
Select climate control settings
Cen-
tral climate control menu.
The current setting is indicated by a
dotR.

Selecting “Front Climate Control”:
Slide qmr or rotate ymz.

Confirming selection: Press n.
The climate control settings shows the
climate control settings for the driver
and front passenger.Switching off rear climate control

Select climate control settings
Cen-
tral climate control menu.
The current setting is indicated by a
dotR.

Selecting “Rear Climate Control
OFF”: Slide qmr or rotate ymz.

Confirming selection: Press n.
The rear climate control is switched off.Switching on the automatic function of
the rear climate control

Select climate control settings
Cen-
tral climate control menu.
The current setting is indicated by a
dotR.

Selecting “Rear Automatic”:
Slideqmr or rotate ymz.

Confirming selection: Press n.
The automatic function of the rear cli-
mate control is switched on.

493 Controls in detail
Driving systems
Dirty or fogged-up windshield
If the windshield in front of the camera is
fogged up on the inside or outside or if it is
dirty, the Night View Assist image is dimin-
ished.Removing condensation

Check settings of automatic climate
control and change them, if necessary
(page 501).

Swing the camera cover downward
(page 621).
Cleaning inside of windshield

Clean inside of windshield in front of
camera with a soft, non-scratching
cloth (
page 621).
Warning!
G
Please do not forget that your primary re-
sponsibility is to drive the vehicle. A driver’s
attention to the road must always be
his/her primary focus when driving. For
your safety and the safety of others, stop be-
fore trying to remove window fogging or
cleaning the window in front of the Night
View Assist camera.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approximate-
ly 14 m) every second.

502 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.
It can only function optimally when you are
driving with the windows and the tilt/slid-
ing sunroof/panorama sunroof* closed.
It is possible to completely deactivate the
climate control system (
page 503). Nearly all dust particles, pollutants and
odors are filtered out before outside air en-
ters the passenger compartment through
the air distribution system.
i
If you have the air distribution and air vol-
ume automatically controlled, you can adjust the
temperature, footwell temperature and air flow.
The following basic settings are recommended:


Automatic air distribution control
(page 501)


Temperature: 72°F (22°C) (
page 504)


Footwell temperature: 0 (
page 278)


Air flow: focused (
page 279)
Warning!
G
Follow the recommended settings for heat-
ing and cooling given on the following pages
and in the “COMAND automatic climate
control” section (
page 273). Otherwise
the windows could fog up, impairing visibili-
ty and endangering you and others.
Warning!
G
Severe conditions (e.g. strong air pollution)
may require replacement of the filter before
its scheduled replacement interval. A
clogged filter will reduce the air volume to
the interior and the windows could fog up,
impairing visibility and endangering you and
others. Have a clogged filter replaced as
soon as possible at an authorized
Mercedes-Benz Center.i
If the vehicle interior is hot, ventilate the in-
terior before driving off, see “Summer opening
feature” (
page 412). The automatic climate
control will then adjust the interior temperature
to the set value much faster.
Keep the air intake grille in front of the wind-
shield free of snow, leaves, sticks, and any other
debris.

503 Controls in detail
Automatic climate control
The following automatic climate control
functions can be operated via COMAND:
Deactivating climate control system
Deactivating: Press button´
(page 501) up or down.
The indicator lamp on the button
comes on. You will see “Climate Con-
trol OFF” in the COMAND display.

Reactivating: Press button´
(page 501) up or down.
The indicator lamp on the button goes
out. You will see the previous settings
in the COMAND display.Operating climate control system in
automatic mode
Air distribution and air volume is adjusted
automatically by the automatic climate
control system. You can also adjust the
settings for air distribution and air volume
manually.
Activating
Press buttonU (
page 501) up or
down.
The indicator lamp on the button
comes on.
Do not obstruct air volume by placing objects on
the air volume-through exhaust slots below the
rear window.Function
Page
Temperature
274
Air distribution
275
Air volume
275
Switching off cooling (“AC
OFF”)
276
Central climate control (“Mono”)
277
Footwell temperature
278
Air flow from air vents
279
Rear climate control*
279
Warning!
G
When the automatic climate control is
switched off, the outside air supply and cir-
culation are also switched off. Only choose
this setting for a short time. Otherwise the
windows could fog up, impairing visibility
and endangering you and others.
i
In automatic mode, cooling with dehumidify
is switched on. This function can be switched off
if necessary (
page 276).

505 Controls in detail
Automatic climate control
Activating
Press button; (
page 501) up or
down.
The indicator lamp on the button
comes on.
The air conditioning switches to the follow-
ing functions automatically:


most efficient blower speed and heat-
ing power, depending on outside tem-
perature


air flows onto the windshield and the
front door windows


the air conditioning compressor
switches on at outside temperatures
above approximately 41°F (5°C) for
air-drying


the air recirculation mode is switched
offAdjustments
You can adjust the air volume and the tem-
perature when the front defroster is
switched on. The air flow will remain on the
windshield and door windows.

Press buttonQ up or down to in-
crease or decrease air volume to the
desired level.
The air volume increases/decreases to
the next higher/lower blower speed
and heating switches to the tempera-
ture that was set before the front de-
froster was switched on.
The indicator lamp on button;
goes out.
or

Press temperature control %$
2and/ora (
page 501) upward or
downward.
Heating switches to the temperature
that was set before the front defroster
was switched on.The indicator lamp on button; goes
out.
Deactivating

Press button; (
page 501) up or
down.
The indicator lamp on the button goes
out.
The previous settings are once again in
effect, except air recirculation mode
stays off.
Windshield fogged on the outside

Switch the windshield wipers on
(page 408).

Press buttonU (
page 501) up or
down.
The indicator lamp on the button
comes on.
i
The air conditioning compressor remains on
even with the indicator lamp on button;
goes out. This helps to prevent windshield from
fogging.

509 Controls in detail
Automatic climate control
Residual engine 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

Switch off the ignition (
page 370).

Press buttonT (
page 501) up or
down.
The indicator lamp on the button
comes on.
Deactivating

Press buttonT (
page 501) up or
down.
The indicator lamp on the button goes
out.Rear passenger compartment climate
control*
i
If you switch on the residual heat function
when outside temperatures are high, only the
ventilation will be switched on.
i
Regardless of the selected air volume, the
blower operates at low speed when heating. In
case of ventilation the blower operates at higher
speed.
i
How long the system will provide heating de-
pends on


the coolant temperature


the temperature set by the operator
i
The residual heat is automatically turned off:


when the ignition is switched on


after approximately 30 minutes


if the battery voltage drops


if the coolant temperature is too low
Warning!
G
Follow the recommended settings for heat-
ing and cooling as given in the instructions
for the front climate control (
page 501).
Otherwise the windows could fog up, impair-
ing visibility for the driver and endangering
you and others.