Clima MERCEDES-BENZ S-Class 2011 W221 User Guide

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 ............................286
Overview of climate control sys-
tems ................................................... 286
Operating the climate control sys-
tems ................................................... 288
Setting the air vents .........................294285Climate control

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

Automatic climate control control panelFunctioniNotes/tipsFront control panel:Sets climate control to
automatic, left
Activate climate control using the à rocker
switch. The indicator lamp in the à rocker switch
lights up.
;Sets the temperature, leftSet the temperature to 72 ‡ (22 †).=Sets the airflow, left?Defrosts the windshieldOnly use the "defrosting" function briefly until the
windshield is clear again.
AActivates/deactivates air-
recirculation mode
Only use "air-recirculation" mode briefly, e.g. if there
are unpleasant outside odors or when in a tunnel. The
windows could otherwise fog up as, in air-
recirculation mode, no fresh air is drawn into the
vehicle.
BSwitches climate control on/
off
CSwitches the residual heat
function on/off
Use the residual heat function if you want to heat or
ventilate the vehicle interior when the ignition is
switched off. The "residual heat" function can only be
activated or deactivated with the ignition switched
off.
Overview of climate control systems287Climate controlZ

FunctioniNotes/tipsDSwitches the rear window
defroster on/offESets the airflow, rightFSets the temperature, rightSet the temperature to 72 ‡ (22 †).GSets climate control to
automatic, rightActivate climate control using the à rocker
switch. The indicator lamp in the à rocker switch
lights up.Rear control panelHSets the temperature, leftSet the temperature to 72 ‡ (22 †).ISets the air distribution, leftJSets the airflowKOFF Deactivates the rear-
compartment climate control
AUTO Sets the rear-
compartment climate control
to automatic
MAN Sets the rear-
compartment climate control
to manualLSets the air distribution, rightMSets the temperature, rightSet the temperature to 72 ‡ (22 †).Operating the climate control
systems
Switching climate control on/off
Important information
GWarning!
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.
i Activate climate control primarily using
the à rocker switch ( Y page 289).
Activating/deactivating the front
climate control using the front control
panelXTurn the key to position 2 in the ignition
lock.XTo switch on: press the ^ rocker
switch up or down.
The indicator lamp in the rocker switch
goes out. The previously selected settings
come into effect again.XTo switch off: press the ^ rocker
switch up or down.
The indicator lamp in the rocker switch
lights up.288Operating the climate control systemsClimate control

Activating/deactivating the rear-
compartment climate control using the
front control panelXTurn the key to position 2 in the ignition
lock.XActivate the Y rear compartment
function via COMAND ( Y page 265).
The rear-compartment climate control can
be controlled via the front control panel
using the Y rear compartment function.XTo switch on: press the ^ rocker
switch up or down.
The indicator lamp in the rocker switch
goes out. The previously selected settings
come into effect again.XTo switch off: press the ^ rocker
switch up or down.
The indicator lamp in the rocker switch
lights up.
Activating/deactivating the rear-
compartment climate control using the
rear control panel
XTurn the key to position 2 in the ignition
lock.XTo activate: press rocker switch
K (Y page 287) up or down and select
AUTO .
or
XPress rocker switch K (Y page 287) up or
down and select MAN.XTo deactivate: press rocker switch
K (Y page 287) up or down and select
OFF .
Activating/deactivating cooling with
air dehumidification
Important information
The cooling with air dehumidification function
is only available when the engine is running.
The air inside the vehicle is cooled and
dehumidified according to the temperature
selected.GWarning
If you switch off the cooling function, 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.
Condensation may drip from the underside of
the vehicle when the automatic climate
control is in cooling mode. This is normal and
not a sign that there is a malfunction.
You can activate or deactivate the "cooling
with air dehumidification" function via
COMAND ( Y page 263).
i The cooling with air dehumidification
function uses refrigerant R134a. This
coolant does not contain
chlorofluorocarbons, and therefore does
not damage the ozone layer.
Problems with the "cooling with air
dehumidification" function
If you can no longer switch on the cooling with
air dehumidification function via COMAND,
the cooling with air dehumidification function
is switched off due to a malfunction.
XConsult a qualified specialist workshop.
Setting climate control to automatic
GWarning
If you switch off the cooling function, 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.
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the
temperature of the dispensed air, the airflow
and the air distribution.
Operating the climate control systems289Climate controlZ

Automatic mode will achieve optimal
operation if cooling with air dehumidification
is also activated. If desired, cooling with air
dehumidification can be deactivated.
Controlling the front climate control
using the front control panel
XTurn the key to position 2 in the ignition
lock.
XSet the desired temperature.X To switch on: press the à rocker
switch up or down.
The indicator lamp in the à rocker
switch lights up.
XTo switch off: press the K rocker
switch up or down.
The indicator lamp in the à rocker
switch goes out.
or
XSet the air distribution using COMAND
(Y page 262).
The indicator lamp in the à rocker
switch goes out.
Controlling the rear-compartment
climate control automatically using the
front control panel
XTurn the key to position 2 in the ignition
lock.
XActivate the Y rear compartment
function via COMAND (Y page 265).
Rear-compartment climate control can be
controlled via the front control panel using
the Y rear compartment function.
XSet the desired temperature.X To switch on: press the à rocker
switch up or down.
The indicator lamp in the à rocker
switch lights up.
XTo switch off: press the K rocker
switch up or down.
The indicator lamp in the à rocker
switch goes out.
or
XSet the air distribution using COMAND
(Y page 262).
The indicator lamp in the à rocker
switch goes out.
iTo return to the standard display, activate
the "front climate control" function via
COMAND (Y page 265).
iThe rear display changes to the standard
display automatically after five seconds.
Controlling the rear-compartment
climate control automatically using the
rear control panel
XTurn the key to position 2 in the ignition
lock.
XSet the desired temperature.X To activate: press rocker switch K up or
down and select AUTO (Y page 287).
XTo deactivate: press rocker switch K up
or down and select MAN or
OFF (Y page 287).
Setting the temperature
Climate control climate zones
You can select different temperature settings
for the driver's and front-passenger sides as
290Operating the climate control systemsClimate control