air conditioning MERCEDES-BENZ S-Class 2011 W221 Owner's Manual

1, 2, 3 ...
12 V socket ........................................ 431
4ETS see ETS/4ETS
4MATIC (permanent four-wheel
drive) .................................................. 339
A
ABC see Active Body Control
ABC (Active Body Control)
Display message ............................ 403
ABS (Anti-lock Braking System)
Display message ............................ 388
Function/notes ................................ 67
Warning lamp ................................. 415
Active Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 376
Display message ............................ 404
Function/information ....................356
Active Body Control (ABC) ................ 338
Active Driving Assistance package . 355
Active Lane Keeping Assist Activating/deactivating (on-
board computer) ............................ 376
Display message ............................ 404
Function/information ....................359
Active light function (display
message) ............................................ 397
Active multicontour seat .......... 106, 268
Active partition (USB devices only) Selecting ........................................ 234
Active service system
see Service interval display
ADAPTIVE BRAKE ................................. 71
Adaptive brake lamps ......................... 69
Adaptive Damping System (ADS) ..... 337
Adaptive Highbeam Assist Display message ............................ 397
Switching on/off ........................... 275
Switching on/off (on-board
computer) ...................................... 377
Additional speedometer ................... 377
Address book
Calling up ....................................... 201
Connecting a call ........................... 204
Creating an entry ........................... 203
Deleting an entry ........................... 204
Importing contacts ........................200
Introduction ................................... 200
Starting route guidance .................204
Voice tag ....................................... 205
Address book entry
Adopting as a home address .........175
Address entry menu .......................... 151
Air bags Display message ............................ 386
Front air bag (driver, front
passenger) ....................................... 46
Important safety notes ....................44
Safety guidelines ............................. 43
Side impact air bag ..........................46
Window curtain air bag ....................47
Air-conditioning system
see Climate control
Air dehumidification
Activating/deactivating with
cooling ........................................... 289
Air distribution
Setting ........................................... 291
Setting (COMAND) .........................262
Airflow
Setting ........................................... 292
AIRMATIC ........................................... 336
AIRMATIC (display message) ............ 402
Air nozzles see Air vents .................................. 295
Air pressure
see Tire pressure
Air-recirculation mode
Activating/deactivating .................293
Air vents ............................................. 295
Glove box ....................................... 295
Important safety information .........294
Rear ............................................... 295
Setting the center air vents ...........295
Setting the side air vents ...............295
Alarm system
see ATA 4Index

Seat beltsAdjusting the driver's and front-
passenger seat belt .........................58
Adjusting the height ......................... 58
Automatic comfort-fit feature ..........60
Belt force limiters ............................ 59
Cleaning ......................................... 459
Correct usage .................................. 56
Emergency Tensioning Devices ........ 59
Fastening ......................................... 57
Important safety guidelines .............55
Releasing ......................................... 58
Safety guidelines ............................. 43
Special seat belt retractor ...............62
Switching belt adjustment on/off
(on-board computer) ......................378
Warning lamp ................................. 414
Warning lamp (function) ................... 58
Seat heating
Indicator lamp (Malfunction) ..........107
Seats
Adjusting (electrically) ...................102
Adjusting lumbar support ..............106
Adjusting the head restraint ..........104
Cleaning the cover .........................458
Correct driver's seat position ........100
Important safety notes ..................101
Multicontour seat .......................... 106
Storing settings (memory
function) ........................................ 111
Switching seat heating on/off .......106
Switching the seat ventilation on/
off .................................................. 107
Seat ventilation
Indicator lamp (Malfunction) ..........107
Sensors (cleaning instructions) ....... 456
Service indicator see Service interval display
Service interval display .................... 451
Displaying a service message (on-
board computer) ............................ 452
Service menu (on-board computer) . 377
Service products Brake fluid ..................................... 514
Capacities ...................................... 511
Coolant (engine) ............................ 515
Engine oil ....................................... 513
Fuel ................................................ 512Important safety notes ..................510
Notes ............................................. 510
Refrigerant (air-conditioning
system) .......................................... 514
Washer fluid ................................... 515
Settings
On-board computer .......................377
Setting the air distribution
COMAND ....................................... 263
Shift ranges ....................................... 311
Showing the distance display (on-
board computer) ............................... 375
Side impact air bag ............................. 46
Side marker lamp (display
message) ............................................ 396
Side windows Convenience closing feature ............91
Convenience opening feature ..........90
Important safety information ...........89
Opening/closing .............................. 90
Resetting ......................................... 92
Troubleshooting ............................... 92
Skipping back
CD/DVD mode .............................. 222
Skipping forwards
CD/DVD mode .............................. 222
Sliding sunroof
Important safety information ...........93
Opening/closing .............................. 94
Resetting ......................................... 94
Troubleshooting ............................... 97
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery .......................80
Changing the programming .............79
Checking the battery .......................80
Convenience closing feature ............91
Convenience opening feature ..........90
Display message ............................ 411
Important safety notes ....................76
Malfunction ...................................... 81
Starting the engine ........................301
Snow chains ...................................... 482
Socket ................................................ 431
Dashboard ..................................... 432
Rear compartment .........................432
Trunk ............................................. 43218Index

COMAND display
Display overview
The COMAND display shows the function currently selected and its associated menus. The
COMAND display is divided into several areas.
The radio display is shown in the example.
:Status bar;To call up the audio menu=Main function bar?Display/selection windowARadio menu barBAir conditioning function bar
Status bar : shows the current settings for radio and telephone operation.
The main functions navigation, audio, telephone and video feature additional menus. This is
indicated by triangle ;. The following table lists the available menu items.
Main function bar = allows you to call up the desired main function.
In the example, the Audio main function is set to radio mode and display/selection
window ? is active.
Radio menu bar A allows you to operate the radio functions.
The air-conditioning functions can be operated in air-conditioning function bar B.
Menu overview
The table lists the menus available after calling up the main navigation, audio, telephone, video
or system function in the main function bar.
At a glance119COMANDZ

You can access the automatic climate control
menu via the air conditioning function bar.
To do so, make certain that the key is in
position 2 in the ignition lock.
Air conditioning function bar
:To set the temperature, left;To set the air distribution, left=To set the airflow, left?Climate control main menu
(Y page 263)
ATo set the airflow, rightBTo set the air distribution, rightCTo set the temperature, right
Setting the temperature
You can set the temperature separately for
the driver’s and front-passenger side.
XSelect left temperature display : or right
temperature display C in the air-
conditioning function bar by turning cVd
the COMAND controller and press W to
confirm.
XTo adjust the temperature: slide ZVÆ or
turn cVd the COMAND controller.
XTo confirm the selection: press W the
COMAND controller.
Setting the air distribution
You can set the air distribution separately for
the driver’s side and for the front-passenger
side.
XSelect left air distribution ; or right air
distribution B by turning cVd the
COMAND controller and press W to
confirm.
¯Directs air through the defroster ventsPDirects air through the center and side
air vents
ODirects air through the footwell ventsSDirects air through the center, side and
footwell vents
aDirects air through the defroster and
footwell vents
_Directs air through the defroster,
center, side and footwell vents
bDirects air through the defroster,
center and side air vents
WControls air distribution automaticallyXTo adjust the air distribution: turn cVd
the COMAND controller.
XTo confirm the selection: press W the
COMAND controller.
262VehicleCOMAND

Setting the airflow
You can set the airflow separately for the
driver’s side and for the front-passenger side.
XSelect left airflow = or right airflow A by
turning cVd the COMAND controller and
press W to confirm.
XTo adjust the airflow: slide ZVÆ or turn
cVd the COMAND controller.
XTo confirm the selection: press W the
COMAND controller.
Climate control main menu
Using COMAND, you can set additional
functions that cannot be called up using the
control panel in the center console. Call up
these functions using the climate control
main menu.
XTo open the climate control main
menu: select the AC climate control
symbol in the air-conditioning function bar
by turning cVd the COMAND controller
and press W to confirm.
The climate control menu opens.
Climate control main menu
You can:
Rswitch cooling with dehumidification on/
off (Æ)
Rcontrol climate control centrally (Mono)
Radjust the Footwell temperature
Rset the Airflow for the air vents
Roperate the Rear air conditioning from the
front
Rset the Auxiliary heating,
departure time
Switching cooling with air
dehumidification on/off
Cooling is operational when the engine is
running and cools according to the selected
interior temperature for the vehicle. Cooling
also dehumidifies the air inside the vehicle
and, thereby, prevents the windows from
misting up.
GRisk of accident
If you switch off cooling with
dehumidification, the vehicle will not be
cooled and the air not dehumidified in warm
weather conditions. The windows can mist up
faster. This could result in your no longer
being able to observe the traffic conditions
properly and you may cause an accident.
iCondensation may collect on the
underside of the vehicle when the cooler is
operating.
XSelect the climate control main menu in the
air-conditioning function bar by turning
Vehicle263COMANDZ

cVd the COMAND controller and press
W to confirm.
The climate control menu opens.
XTo switch on: select Æ and press W.XTo switch off: select Æ and press W.
A tick appears.
Controlling climate control centrally
You can use the Mono function to set all the
air-conditioning zones in the vehicle to the
same settings. If the Mono function is
switched on and you adjust climate control
on the driver’s side, these changes will also
be made in all the air-conditioning zones.
XSelect the climate control main menu in the
air-conditioning function bar by turning
cVd the COMAND controller and press
W to confirm.
The climate control menu opens.
XSelect Mono and press W.
A tick appears when the function is
selected.
The Mono function is automatically switched
off if you:
Rchange settings for automatic climate
control on the front-passenger side using
COMAND
Rpress one of the rocker switches to operate
automatic climate control on the front-
passenger side
Rpress one of the rocker switches on the
rear-compartment control panel
Adjusting the footwell temperature
You can use the Footwell temperature
function to set the temperature difference
between the footwell and the rest of the
vehicle interior.
iThis setting is quite effective in automatic
mode, especially at low outside
temperatures.
The greater the value you set, the higher the
temperature in the footwell.
XSelect the climate control main menu in the
air-conditioning function bar by turning
cVd the COMAND controller and press
W to confirm.
The climate control menu opens.
XSelect Footwell temperature and press
W.
A scale appears.
XTo change the temperature difference:
slide ZVÆ or turn cVd.
XTo confirm your selection: press W.264VehicleCOMAND

Adjusting the blower settings for the air
vents
This function allows you to determine the way
the air is blown through the air vents in
automatic mode.
You can select:
RFocused (high blower setting)
RMedium (standard setting)
RDiffuse (low blower setting)
iThis setting is quite effective in automatic
mode, especially at high outside
temperatures.
If the vehicle has become very warm and the
automatic climate control is cooling the
interior, the blower settings are briefly
canceled.
XSelect the climate control main menu in the
air-conditioning function bar by turning
cVd the COMAND controller and press
W to confirm.
The climate control menu opens.
XSelect Airflow and press W.
A menu appears.
The current setting is indicated by a # dot.
XTo change the airflow: slide ZVÆ or turn
cVd.
XTo confirm your selection: press W.
Operating the rear-compartment air-
conditioning system from the front
The rear-compartment air-conditioning
system is operated in the same way as
climate control for the driver and front
passenger.
Switching on operation of the rear-
compartment air conditioning from the
front
XSelect the climate control main menu in the
air-conditioning function bar by turning
cVd the COMAND controller and press
W to confirm.
The climate control menu opens.
XSelect Rear Y and press W.
Rear appears in the main menu on the air-
conditioning function bar. The rear-
compartment air-conditioning system can
be controlled from the front.
Main menu for the rear-compartment air-
conditioning system
In the main menu for the rear-compartment
air-conditioning system, you can:
Rswitch back to front-compartment climate
control operation
Rswitch off the rear-compartment air
conditioning
Rswitch automatic mode for the rear-
compartment air conditioning on/off
XTo open the main menu: select the
climate control main menu in the air
conditioning function bar and press W.
The current setting is indicated by a # dot.
Vehicle265COMANDZ

To switch back from operation of the rear-
compartment air-conditioning system from
the front:
XIn the climate control main menu, select
Front climate control and press W.
The air conditioning function bar shows the
climate control settings for the driver and
front passenger.
To switch off the rear-compartment air-
conditioning system:
XIn the climate control main menu, select
Rear climate control off and press
W.
To switch on automatic mode for the rear-
compartment air-conditioning system:
XIn the climate control main menu, select
Rear automatic and press W.
Automatic mode for the rear-compartment
air-conditioning system is switched on.
Seats
Lumbar supports
The lumbar support in the backrest of the
driver's and front-passenger seats can be
adjusted to provide optimum support for your
back.
XTo select the seat: press the T
function button.
The main area of the COMAND display is
active. A scale appears.
XTo move to the lower menu bar: select
by sliding ZVÆ the COMAND controller
and press W to confirm.
iWhen you press the T function button,
the previously adjusted seat is active.
XTo adjust the lumbar support: select by
sliding XVY or turning cVd the COMAND
controller and press W to confirm.
Multicontour seat
iInformation about the components and
operating principles of COMAND can be
found on (Y page 116).
The contour of the driver's seat and front-
passenger seat backrests can be individually
adjusted to provide optimum support for your
back. This is achieved by controlling the
pressure in the air chambers in the
multicontour seat.
The adjustments are made using the
COMAND display.
iWhen you adjust the multicontour seat,
you may hear the air being pumped in or
released.
You can adjust the following air cushions:
Rseat side bolsters
Rseat backrest side bolsters
Rbackrest curvature in the lumbar region
Rbackrest curvature in the upper back
region
XMake sure that the key is in position 2 in
the ignition lock.
XPress the T function button.
Selecting the seat
You must first select the seat for which you
wish to make adjustments.
XPress the T function button.
The main area is active.
XTo move to the lower menu bar: select
by sliding ZVÆ the COMAND controller
and press W to confirm.
266VehicleCOMAND

Vehicle equipment
i This manual describes all the standard
and optional equipment of your vehicle
which was available at the time of
purchase. Country-specific differences are
possible. Bear in mind that your vehicle
may not feature all functions described
here. This also refers to safety-related
systems and functions.
Overview of climate control systems
Important safety notes
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.
Otherwise, the windows could fog up,
impairing visibility and endangering you and
others.
Automatic climate control regulates the
temperature and the humidity in the vehicle
interior and filters undesirable substances
from the air.
Automatic climate control is only operational
when the engine is running 19
. Optimum
operation is only achieved when you drive
with the side windows and tilt/sliding
sunroof/panorama roof with power tilt/
sliding panel closed.
Some functions of automatic climate control
can also be set via COMAND ( Y page 261).
i
Ventilate the vehicle for a brief period
during warm weather, e.g. using the
convenience opening feature ( Y page 90).
This will speed up the cooling process and
the desired vehicle interior temperature
will be reached more quickly.
i The integrated filter can remove most
particles of dust and removes pollen
completely. A clogged filter reduces the
amount of air supplied to the vehicle
interior. For this reason, you should always
observe the interval for replacing the filter,
which is specified in the Service Booklet.
As it depends on environmental conditions,
e.g. heavy air pollution, the interval may be
shorter than stated in the Service Booklet.
i It is possible that the interior blower may
be activated automatically 40 minutes after
the SmartKey is removed. The vehicle is
then ventilated for 30 minutes to dry the
air-conditioning system.19 The "residual heat" function can only be switched on/off if the ignition is switched off.286Overview of climate control systemsClimate control

This is the quickest way to cool the vehicle
interior when the sliding sunroof and the side
windows are closed.
Defrosting the windows
Windows fogged up on the inside
XActivate the "cooling with air
dehumidification" function via COMAND
( Y page 263).XActivate automatic mode Ã.XIf the windows continue to fog up, activate
the defrosting function ( Y page 292).
i
You should only select this setting until
the windshield is clear again.
Windows fogged up on the outside
XActivate the windshield wipers.XActivate automatic climate control.
i You should only select this setting until
the windshield is clear again.
Rear window defroster
Activating/deactivating
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 heating has a high current
draw. You should therefore switch it off as
soon as the window is clear as it only switches
off automatically after several minutes.
If the battery voltage is too low, the rear
window heating may switch off.
XTurn the SmartKey to position 2 in the
ignition lock.XPress the ¤ rocker switch up or down.
The indicator lamp in the ¤ rocker
switch lights up or goes out.Problems with the rear window heating
The rear window heating has deactivated
itself prematurely or cannot be activated.
XSwitch off any consumers that are not
required, e.g. reading lamps or interior
lighting.
When the battery is sufficiently charged,
the rear window heating is activated again
automatically.
Activating/deactivating air-
recirculation mode
You can deactivate the flow of fresh air if
unpleasant odors are entering the vehicle
from outside. The air already inside the
vehicle will then be recirculated.
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
window fogging persists, make sure the air
conditioning is activated, or press the ¬
button.
XTurn the SmartKey to position 2 in the
ignition lock.XTo activate: press the g rocker switch
up or down.
The indicator lamp in the g rocker
switch lights up.
i Air-recirculation mode is activated
automatically at high outside
temperatures. The indicator lamp in the
g rocker switch is not lit when
automatic air-recirculation mode is
activated.
Outside air is added after about 30
minutes.
Operating the climate control systems293Climate controlZ