2012 MERCEDES-BENZ S-Class climate control

turning cVd the COMAND controller and
press W to confirm.
The main area is active.XSelect the Automatic Locking function
by sliding XVY or turning cVd the
COMAND controller and press W to
confirm.
Activating/deactivating the trunk lid
opening height restriction
XTo activate/deactivate the trunk lid
opening height restriction: select
Vehicle in the main function bar by sliding
XVY and turning cVd the COMAND
controller and press W to confirm.
The main area is active.XSelect the Trunk Opening-height
Restriction function by sliding XVY or
turning cVd the COMAND controller and
press W to confirm.
Automatic climate control
Introduction to automatic climate
control
You can operate automatic climate control
using COMAND or the buttons on the upper
section of the center console ( Y page 291).
Several special automatic climate control
functions can only be adjusted using
COMAND.
You can access the automatic climate control
menu via the air-conditioning function bar.
To do so, make certain that the SmartKey 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 266)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.Vehicle265COMANDZ

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 and 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 ventsODirects air through the footwell ventsSDirects air through the center, side and
footwell ventsaDirects air through the defroster and
footwell vents_Directs air through the defroster,
center, side and footwell ventsbDirects air through the defroster,
center and side air ventsWControls air distribution automaticallyXTo adjust the air distribution: turn cVd
the COMAND controller.XTo confirm the selection: press W the
COMAND controller.Setting the airflow
You can set the airflow separately for the
driver’s and 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
COMAND allows you to set additional
functions which cannot be selected 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.266VehicleCOMAND

Climate control main menu
You can:
R switch cooling with dehumidification on or
off ( Æ )
R control climate control centrally ( Mono)
R adjust the Footwell Temperature
R set the Airflow for the air vents
R operate the Rear air conditioning from the
front
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
fogging up.
GWARNING
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.
i Condensation 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 turningcVd 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:
Vehicle267COMANDZ

Rchange settings for automatic climate
control on the front-passenger side using
COMAND
R press one of the rocker switches to operate
automatic climate control on the front-
passenger side
R press 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.
i This 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.Setting 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:
R Focused (high blower setting)
R Medium (standard setting)
R Diffuse (low blower setting)
i This setting is quite effective in automatic
mode, especially at high outside
temperatures.
If the vehicle has become very warm and the
automatic air conditioning 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
268VehicleCOMAND

climate control for the driver and front
passenger.
Switching on operation of the rear-
compartment air conditioning from the
frontXSelect 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:
R switch back to front-compartment climate
control operation
R switch off the rear-compartment air
conditioning
R switch 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.
To switch back to 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:
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:
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.Vehicle269COMANDZ

Useful information ............................290
Overview of climate control sys-
tems ................................................... 290
Operating the climate control sys-
tem ..................................................... 292
Setting the air vents .........................298289Climate control

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Please read the information on qualified
specialist workshops ( Y page 31).
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 blocked filter replaced at a Mercedes-
Benz Center as soon as possible.
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.
The automatic climate control controls the
temperature and the humidity in the vehicle
interior and filters undesirable substances
from the air.
The automatic climate control is only
operational when the engine is running 16
.
Optimum operation is only achieved if you
drive with the side windows and sliding
sunroof/panorama roof with power tilt/
sliding panel closed.
You can also set some automatic climate
control functions via COMAND (Y page 265).
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the
convenience opening feature ( Y page 93).
This will speed up the cooling process and
the desired vehicle interior temperature
will be reached more quickly.
i The integrated filter can filter out most
particles of dust and completely filters out
pollen. 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 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.16 The residual heat function can only be activated/deactivated if the ignition is switched off.290Overview of climate control systemsClimate control

Automatic climate control panelFront control panel:Sets climate control to automatic mode, left (Y page 293);Sets the temperature, left ( Y page 294)=Sets the airflow, left ( Y page 295)?Defrosts the windshield ( Y page 296)AActivates/deactivates air-recirculation mode ( Y page 297)BSwitches climate control on /off( Y page 292)CSwitches the residual heat function on/off( Y page 298)DSwitches the rear window defroster on/off ( Y page 297)ESets the airflow, right ( Y page 295)FSets the temperature, right ( Y page 294)GSets climate control to automatic mode, right ( Y page 293)Rear control panel HSets the temperature, left ( Y page 294)ISets the air distribution, left ( Y page 295)JSets the airflow ( Y page 295)KOFF Switches rear-compartment climate control off ( Y page 292)AUTO Sets rear-compartment climate control to automatic mode ( Y page 293)MAN Sets rear-compartment climate control to manual mode ( Y page 293)LSets the air distribution, right ( Y page 295)MSets the temperature, right ( Y page 294)Overview of climate control systems291Climate controlZ