2011 MERCEDES-BENZ CL-Class climate control

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
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
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
236VehicleCOMAND

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.
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.
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.
Vehicle237COMANDZ

Vehicle equipment ............................256
Overview of climate control sys-
tems ................................................... 256
Operating the control systems ........258
Setting the air vents .........................262255Climate 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 15
. Optimum
operation is only achieved when you drive
with the side windows and tilt/sliding sunroof
closed.
Some functions of automatic climate control
can also be set via COMAND ( Y page 234).
i
Ventilate the vehicle for a brief period
during warm weather, e.g. using the
convenience opening feature ( Y page 86).
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.15 The "residual heat" function can only be switched on/off if the ignition is switched off.256Overview of climate control systemsClimate control

Automatic climate control control panelFunctioniNotes/tips:Sets climate control to
automatic, leftActivate 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 modeOnly 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/
offCSwitches the residual heat
function on/offUse 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.DSwitches the rear window
defroster on/offESets the airflow, rightOverview of climate control systems257Climate controlZ

FunctioniNotes/tipsFSets 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.Operating the control systems
Switching the 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 258).
Activating/deactivating
XTurn 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.
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 236).
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
258Operating the control systemsClimate control

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.
Automatic mode will achieve optimal
operation if cooling with air dehumidification
is also activated. If desired, cooling with air
dehumidification can be deactivated.
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 235).
The indicator lamp in the à rocker
switch goes out.
Setting the temperature
Climate control climate zones
You can select different temperature settings
for the driver's and front-passenger sides as
well as for the footwells.
XTurn the key to position 2 in the ignition
lock.
XTo increase/reduce: press the w
rocker switch up or down.
Only change the temperature setting in
small increments. Start at 72 ‡ (22 †).
iYou can also use COMAND to set the
temperature (Y page 234).
iThe footwell temperature can be set via
COMAND (Y page 237).
Setting the air distribution
Air distribution settings
The air distribution can be set individually for
the driver's and front-passenger sides.
¯directs the airflow through the
defroster vents
Pdirects the airflow through the center
and side air vents
Odirects the airflow through the footwell
air vents
Sdirects the airflow through the center
and side air vents, as well as the
footwell air vents
adirects the airflow through the footwell
and defroster vents
_directs the airflow through the
defroster, center and side air vents, as
well as the footwell air vents
bdirects the airflow through the center
and side air vents, as well as the
defroster vents
Wadjusts the air distribution
automatically
The air distribution can be set using COMAND
(Y page 235).
Operating the control systems259Climate controlZ

Setting the airflow
You can select different airflow settings for
the driver's and front-passenger sides.XTurn the key to position 2 in the ignition
lock.XTo increase/reduce: press the K
rocker switch up or down.
You can also use COMAND to set the airflow
( Y page 235).
Defrosting the windshield
You can use this function to defrost the
windshield or to defrost the inside of the
windshield and the side windows.
i You should only select the defrosting
function until the windshield is clear again.
XTurn the SmartKey to position 2 in the
ignition lock.XTo switch on: press the ¬ rocker
switch up or down.
The indicator lamp in the ¬ rocker
switch lights up.
The climate control system switches to the
following functions:
R cooling with air dehumidification on
R high airflow 16
R high temperature 16
R air distribution to the windshield and
front side windows
R air-recirculation mode offXTo switch off: press the ¬ rocker
switch up or down.
The indicator lamp in the ¬ rocker
switch goes out. The previously selected
settings come into effect again. The cooling
with air dehumidification function remains
on. Air-recirculation mode remains
deactivated.
or
XPress the w rocker switch up or down.orXPress the K rocker switch up or down.
Maximum cooling MAX COOL
The MAX COOL function is only available in
vehicles for the USA.
MAX COOL is only operational when the
engine is running.
The MAX COOL function is activated
automatically:
R if climate control is set to automatic
( Ã ) on both sides
R if additional cooling is used
The display shows MAX COOL.
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 236).XActivate automatic mode Ã.XIf the windows continue to fog up, activate
the defrosting function ( Y page 260).
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.
16 Depending on the outside temperature.260Operating the control systemsClimate control