2010 MERCEDES-BENZ S CLASS cooling

Break-in period .................................. 402
Bulbs see Replacing bulbs
C
CAC (Customer Assistance Center) ... 24
California retail buyers and
lessees, important notice for ............. 22
Calls (phone) .............................. 148, 230
Can holders see Cup holders
Capacities and recommended
fuel/lubricants .................................. 537
Carpets, cleaning .............................. 446
CD player ............................................ 176
Central locking
Automatic ...................................... 278
KEYLESS-GO .................................. 275
Locking/unlocking from inside ......279
SmartKey ....................................... 274
Central locking/unlocking switch ... 279
Certification label .............................. 524
Children in the vehicle
Air bags ........................................... 41
Child safety locks (rear doors) .........61
Child seat anchors – LATCH-type
(ISOFIX) ........................................... 60
Indicator lamp, front passenger
front air bag off ................................ 46
Infant and child restraint systems .... 57
ISOFIX (Child seat anchors –
LATCH-type) ..................................... 60
OCS (Occupant Classification
System) ........................................... 46
Override switch ................................ 61
Safety notes ..................................... 56
Tether anchorage points ..................59
Top tether ........................................ 59
Child safety
see Children in the vehicle
Child seat anchors – LATCH-type
(ISOFIX) see Children in the vehicle
Chrome-plated exhaust tip,
cleaning .............................................. 447
Cigarette lighters .............................. 387
Climate control system .................... 363
Air conditioning ............................. 366
Air conditioning refrigerant ............540
Air distribution ............................... 370
Air recirculation mode ...................371
Air volume ..................................... 370
Automatic mode ............................ 366
Deactivating system ......................366
Front defroster .............................. 370
Maximum cooling MAX COOL ........371
Residual heat and ventilation .........372
Temperature .................................. 367
Coat hooks ......................................... 380
Cockpit ................................................. 30
Cold tire inflation pressure .............. 430
Collapsible wheel chock ................... 450
COMAND .............................................. 76
Address book ................................. 159
Audio playback .............................. 176
AUX sockets .................................. 186
Components .................................... 77
Controller ......................................... 79
FM/AM Radio ................................ 165
Gracenote ®
Media Database .........185
HD Radio™ .................................... 167
Headphone ...................................... 82
Inserting/ejecting CDs and DVDs . 179
Introduction ..................................... 76
iPod ®
............................................. 200
Media interface .............................. 200
Music Register ............................... 196
Navigation ........................................ 95
Operating ......................................... 84
Phone book .................................... 159
Rear Seat Entertainment System ...189
Remote control (Rear Seat
Entertainment System) ....................81
Remote control (SPLITVIEW) ............81
Reset to factory settings ..................95
Satellite radio ................................ 170
SD card .......................................... 180
Shortcut buttons .............................. 77
SPLITVIEW ....................................... 90
Switching on or off ........................... 77
System settings ............................... 91
Telephone ...................................... 148
Telephone keypad ............................ 796Index221_AKB; 6; 20, en-USd2ugruen,Version: 2.11.8.12009-09-24T13:28:17+02:00 - Seite 6

Adjusting air flow from air vents
iIn automatic mode, this setting optimizes
the air flow when outside temperatures are
high.
The Airflow setting defines air distribution
and air volume in automatic mode:
RFocused (default setting, increased air
flow)
RMedium (reduced air flow)
RDiffuse (minimal air flow)
iWhen the interior ambient temperature of
the vehicle is very hot and the climate
control is cooling the interior, the setting
for air flow is temporarily overridden.
XSelect climate control settings \000T Central
climate control menu \000T Airflow.
A selection list appears.
The current setting is indicated by a
dot \000?.
XChanging air flow: Slide \000

XWait for the gear selection process to
complete before setting the vehicle in
motion.XRelease the brake pedal.XCarefully depress the accelerator pedal.
The electronic parking brake releases
automatically.
The red indicator lamp 0049 (USA only)
or 0024 (Canada only) in the instrument
cluster goes out.
After a cold start, the automatic transmission
shifts at a higher engine speed. This allows
the catalytic converter to reach its operating
temperature earlier.
For more information on driving, see “Driving
instructions” ( Y page 434).
Problems while driving
The engine runs erratically and misfires
R An ignition cable may be damaged.
R The engine electronics may not be
operating properly.
R Unburned gasoline may have entered the
catalytic converter and damaged it.
XGive very little gas.XHave the problem checked at an authorized
Mercedes-Benz Center as soon as possible.
The coolant temperature is above
248‡ (120†)
The coolant is too hot and is no longer cooling
the engine.
XStop the vehicle in a safe location as soon
as possible.XTurn off the engine immediately.XAllow the engine and coolant to cool off.XCheck the coolant level and add coolant if
necessary ( Y page 408).In case of accident
If the vehicle is leaking fuel:
XDo not start the engine under any
circumstances.XExit the vehicle at a safe distance from the
roadway.XNotify local fire and/or police authorities.
If the extent of the damage cannot be
determined:
XContact an authorized Mercedes-Benz
Center or call Roadside Assistance.
If no damage on major assemblies, fuel
system, and engine mount can be
determined:
XStart the engine in the usual manner.
Parking
GWarning!
Do not park in areas where the hot exhaust
system could come into contact with
combustible materials. Combustible
materials such as grass, hay or leaves could
be ignited and cause a vehicle fire.
Unintended vehicle movement could cause
serious personal injury or damage to the
vehicle or the vehicle drivetrain. To reduce
such risks, always do the following before
turning off the engine and leaving the vehicle:
R Keep right foot on the brake pedal.
R Engage the electronic parking brake.
R Shift the automatic transmission into park
position P.
R Slowly release the brake pedal.
R When parked on an incline, always turn the
front wheels towards the road curb.
R Turn the SmartKey in the starter switch to
position 0 and remove the SmartKey from
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FunctionRecommendation/Notes0077Air distribution, left0078Temperature
control, lefti Set the temperature to 72‡ (22†).Notes on climate control system
i If you have the air distribution and air
volume automatically controlled, you can
adjust the temperature, footwell
temperature and air flow. The following
basic settings are recommended:
R Automatic air distribution control
( Y page 366)
R Temperature: 72‡ (22†) ( Y page 367)
R Footwell temperature: 0 ( Y page 214)
R Air flow: focused ( Y page 215)
The climate control system is operational
whenever the engine is running. You can
operate the climate control system in either
the automatic or manual mode. The system
cools or heats the interior depending on the
selected interior temperature.
It can only function optimally when you are
driving with the windows, the tilt/sliding
sunroof or tilt/sliding panel closed.
Nearly all dust particles, pollutants and odors
are filtered out before outside air enters the
passenger compartment through the air
distribution system.GWarning!
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.
GWarning!
Follow the recommended settings for heating
and cooling given on the following pages and
in the “COMAND automatic climate control”
section. Otherwise the windows could fog up,
impairing visibility and endangering you and
others.
XKeep the air intake grille in front of the
windshield free of snow and debris.
Do not obstruct air flow by placing objects on
the air flow-through exhaust slots below the
rear window.
i If the vehicle interior is hot, ventilate the
interior before driving off, see “Summer
opening feature” (Y page 309). The climate
control will then adjust the interior
temperature to the set value much faster.
The following climate control functions can
be operated via COMAND:
R Temperature ( Y page 211)
R Air distribution ( Y page 212)
R Air volume ( Y page 212)
R Switching off cooling ( 0055) (Y page 213)
R Central climate control ( Mono)
( Y page 214)
R Footwell temperature ( Y page 214)
R Air flow from air vents ( Y page 215)
R Rear climate control ( Y page 215)
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Deactivating the climate control
systemGWarning!
When the climate control system is
deactivated, the outside air supply and
circulation are also deactivated. Only choose
this setting for a short time. Otherwise the
windows could fog up, impairing visibility and
endangering you and others.
Deactivating the front climate control
XDeactivating: Press rocker switch 0061 up
or down.
The indicator lamp in the rocker switch
comes on. You will see Climate Control
OFF in the COMAND display.XReactivating: Press rocker switch 0061 up
or down.
The indicator lamp in the rocker switch
goes out. You will see the previous settings
in the COMAND display.
Deactivating the rear climate control
Operating on the front climate control
panel
XActivate the Rear00A6 function via
COMAND ( Y page 215). This function is
used to operate the rear climate control via
COMAND and the rocker switches on the
control panel from the front.XDeactivating: Press rocker switch 0061 up
or down.
The indicator lamp in the rocker switch
comes on.XReactivating: Press rocker switch 0061 up
or down.
The indicator lamp in the rocker switch
goes out. The previous settings are once
again in effect.Operating on the rear climate control
panelXDeactivating: Press rocker switch 0075
( Y page 363) up or down repeatedly until
OFF mode is selected in display.XReactivating: Press rocker switch 0075 up or
down repeatedly until AUTO mode is
selected in display.
or
XPress rocker switch 0075 up or down
repeatedly until MAN mode is selected in
display.
Air conditioning
The air conditioning is operational while the
engine is running and cools the interior air to
the temperature set by the operator. In
addition, the air conditioning dehumidifies
the interior air and helps prevent window
fogging.
GWarning!
If you deactivate the air conditioning, the
vehicle will not be cooled when weather
conditions are warm. The windows can fog up
more quickly. Window fogging may impair
visibility and endanger you and others.
i Condensated water may drip out from
underneath the vehicle. This is normal and
not an indication of a malfunction.
The air conditioning uses the refrigerant
R134a. This refrigerant is free of CFCs which
are harmful to the ozone layer.
The cooling function can be activated or
deactivated via COMAND ( Y page 213).
Automatic mode
When operating the climate control system in
automatic mode, the interior air temperature,
air volume and air distribution are adjusted
automatically.
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In automatic mode, cooling with
dehumidification is switched on. This function
can be switched off if necessary.
GWarning!
If you deactivate the air conditioning, the
vehicle will not be cooled when weather
conditions are warm. The windows can fog up
more quickly. Window fogging may impair
visibility and endanger you and others.
Automatic mode with the front climate
control
XSet the desired temperature
(Y page 367).
XActivating: Press rocker switch \000Z up or
down.
The indicator lamp in the rocker switch
comes on.
XDeactivating: Press rocker switch \000

ActivatingXPress rocker switch 0066 up or down.
The indicator lamp in the rocker switch
comes on.
The climate control switches to the following
functions automatically:
R most efficient blower speed and heating
power, depending on outside temperature
R air flows onto the windshield and the front
door windows
R the air conditioning compressor switches
on at outside temperatures above
approximately 41‡ (5†) for air-drying
Adjustments
You can adjust the air volume and the
temperature when the front defroster is
switched on. The air flow will remain on the
windshield and front door windows.
XPress rocker switch 0099 up or down to
increase 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 temperature that
was set before the front defroster was
switched on.
The indicator lamp in rocker switch 0066
goes out.
or
XPress rocker switches 0084 up or down.
Heating switches to the temperature that
was set before the front defroster was
switched on.
The indicator lamp in rocker switch 0066
goes out.
i The air conditioning compressor remains
on even with the indicator lamp in button
0066 goes out. This helps to prevent
windshield from fogging.
DeactivatingXPress rocker switch 0066 up or down.
The indicator lamp in the rocker switch
goes out.
The previous settings are once again in
effect, except air recirculation mode stays
off.
Windshield fogged on the outside
XSwitch the windshield wipers on
( Y page 305).XPress rocker switch 005A up or down.
The indicator lamp in the rocker switch
comes on.
Maximum cooling MAX COOL
MAX COOL is only available in U.S. vehicles.
MAX COOL is only operational when the
engine is running.
If 005A is selected on both the left and right
side and there is a high demand for cooling,
the display MAXCOOL appears in the COMAND
display.
This provides the fastest possible cooling of
the vehicle interior (when windows and tilt/
sliding sunroof or tilt/sliding panel are
closed).
Air recirculation mode
Switch to air recirculation mode to prevent
unpleasant odors from entering the vehicle
from the outside (e. g. before driving through
a tunnel). This setting cuts off the intake of
outside air and recirculates the air in the
passenger compartment.
GWarning!
Fogged windows impair visibility,
endangering you and others. If the windows
begin to fog on the inside, switching off the
air recirculation mode immediately should
clear interior window fogging. If interior
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window fogging persists, make sure the air
conditioning is activated, or press button
0066 .XActivating: Press rocker switch 0074 up or
down.
The indicator lamp in the rocker switch
comes on.
i The air recirculation mode is activated
automatically at high outside
temperatures.
The indicator lamp in rocker switch 0074 is
not lit when the air recirculation mode is
switched on automatically.
A quantity of outside air is added when the
cooling demand is not at maximum.
If the air conditioning has been turned off
or the outside temperature is below 41‡
(5†), the air recirculation mode will not
switch on automatically.
XDeactivating: Press rocker switch 0074 up
or down.
The indicator lamp in the rocker switch
goes out.
i The manually selected air recirculation
mode is deactivated automatically:
R after 5 minutes if the outside
temperature is below approximately
41‡ (5†)
R after 5 minutes if the air conditioning is
turned off
R after 30 minutes if the outside
temperature is above approximately
41‡ (5†)
Residual heat and ventilation
With the engine turned 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.
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
depends on the coolant temperature and
the selected temperature. The blower will
run at low speed regardless of the air
distribution control setting.XActivating: Switch off the ignition.XPress rocker switch 004D up or down.
The indicator lamp in the rocker switch
comes on.XDeactivating: Press rocker switch 004D up
or down.
The indicator lamp in the rocker switch
goes out.
The residual heat is deactivated
automatically:
R when the ignition is switched on
R after approximately 30 minutes
R if the battery voltage drops
R if the coolant temperature is too low
Rear window defroster
GWarning!
Any accumulation of snow and ice should be
removed from the rear window before driving.
Visibility could otherwise be impaired,
endangering you and others.
The rear window defroster uses a large
amount of power. To keep the battery drain
to a minimum, switch off the defroster as
soon as the rear window is clear. The
defroster is switched off automatically after
approximately 6 to 17 minutes of operation
depending on the outside temperature.
372Rear window defrosterControls in detail
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