2011 MERCEDES-BENZ CLS-CLASS Owners Manual

Climate control system
Control panels
4-zone automatic climate control Function Recommendation/Notes
Front climate
control panel
1
Air distribution,
driver’s side (Y page 149)
2
Front defroster i
Keep this setting selected only until the
windshield or the side windows are clear
again. (Y page 149)
3
Temperature
control, driver’s side,
raising i
Set the temperature to 72‡ (22†). (Y page 147)
4
Display
5
Temperature
control, passenger
side, raising i
Set the temperature to 72‡ (22†). (Y page 147)
6
Rear window
defroster (Y page 151)
7
Air distribution,
passenger side (Y page 149)Climate control system
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Function Recommendation/Notes
8
Air distribution and
air volume,
passenger side
(automatic mode) i
Switch on the automatic mode. The
indicator lamp in button à comes on. (Y page 146)
9
AC cooling on/off i
Switch on/off the air conditioning. (Y page 146)
a
Temperature
control, passenger
side, lowering i
Set the temperature to 72 ‡ (22†). (Y page 147)
b
° Rear air-
conditioning remote
control (USA only) (Y page 147)
Y Rear air-
conditioning remote
control (Canada
only)
c
Increasing air
volume (Y page 149)
d
Climate control on/
off i
Switch on/off the climate control
system. (Y page 145)
e
Decreasing air
volume (Y page 149)
f
Ù on/off (USA
only) (Y page 150)
Ì
Residual heat/
ventilation (Canada
only) i
With the engine turned off, it is possible
to continue to heat or ventilate the
interior. (Y page 151)
g
Temperature
control,

driver’s side,
lowering i
Set the temperature to 72 ‡ (22†). (Y page 147)
h
Air recirculation i
Only use this function for a short time,
e.g. in a tunnel. Otherwise, the windows
can fog up due to lack of fresh air. (Y page 150)
j
Air distribution and
air volume, driver’s
side (automatic
mode) i
Switch on the automatic mode. The
indicator lamp in button à comes on. (Y page 146)
Rear climate
control panel144
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Controls in detail
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Function Recommendation/Notes
O
Temperature
control, left, raising i
Set the temperature to 72 ‡ (22†). (Y page 147)
P
Display
Q
Temperature
control, right, raising i
Set the temperature to 72
‡ (22†). (Y page 147)
R
Temperature
control, right,
lowering i
Set the temperature to 72
‡ (22†). (Y page 147)
S
Temperature
control, left,
lowering i
Set the temperature to 72
‡ (22†). (Y page 147)
Notes on climate control system
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 and the tilt/sliding
sunroof closed.
Nearly

all dust particles, pollutants and odors
are filtered out before outside air enters the
passenger compartment through the air
distribution system. G
Warning!
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.
The air conditioning will not engage (no
cooling) if the A/C mode (Y page 146) is
deactivated. G
Warning!
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.
X Keep 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 96). The climate
control will then adjust the interior
temperature to the set value much faster. Deactivating the climate control
system
G
Warning!
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. Climate control system
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X
Deactivating: Press button ^.
0 appears in display ? (Y page 143).
X Reactivating: Press button ^.
Display ?
comes on. The previous settings
are once again in effect. 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. G
Warning!
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.
Deactivating It is possible to deactivate the air
conditioning. The interior air will then no
longer be cooled or dehumidified.
X
Press button ¿.
The indicator lamp in the button goes out.
The cooling function switches off after a
short delay.
Activating Moist air can fog up the windows. You can
dehumidify the interior air with the air
conditioning.
X
Press button ¿.
The
indicator lamp in the button comes on. i
The evaporator will be vented when the
air conditioning has been in use.
Approximately 1 hour after locking the
vehicle, the blower switches on
automatically. The blower will run for
30 minutes at its lowest level. The blower
noise is normal and not an indication of a
malfunction. When you unlock the vehicle
in the meantime, venting will be
interrupted. If the vehicle battery is low,
automatic

evaporator venting will not occur
in order to preserve the battery. Automatic mode
When
operating the climate control system in
automatic mode, the interior air temperature,
air volume and air distribution are adjusted
automatically.
In automatic mode, cooling with
dehumidification is switched on. This function
can be switched off if necessary. G
Warning!
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.
X Set the desired temperature
(Y page 147).
X Activating: Press one button Ã.
The
indicator lamp in the button comes on.
AUTO appears in display ? (Y page 143).
The air volume and air distribution are
adjusted automatically.
X Deactivating:
Press button I or K.
AUTO disappears in display ?. The
automatic function for air volume is
switched off, and air volume is controlled
according to the desired setting. The 146
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automatic air distribution remains
switched on.
or
X Turn air distribution control : or C
(Y page 143) on each side of the passenger
compartment to the desired symbol.
The indicator lamp in button à goes out.
Automatic air distribution is switched off in
the corresponding zone, and air
distribution is controlled according to the
desired position. The automatic air volume
remains switched on. Setting the temperature
You can adjust the air temperature for each
of the 4 zones separately. You should raise or
lower the temperature setting in small
increments, preferably starting at 72‡
(22†). Front zones
X
Increasing/decreasing: Press button
9 or : until the desired temperature
appears in display ? (Y page 143). Rear zones X
Press button °.
Display ? (Y page 143) switches over.
X Increasing/decreasing: Press button
9 or : until the desired temperature
appears in display ?.
After approximately 5 seconds after the
last adjustment, display ? switches back
to its standard display.
i You can also press button ° once
more to switch back to the standard
display.
Rear climate control panel You can adjust the air temperature on each
side of the rear passenger compartment. You
should raise or lower the temperature setting
in small increments, preferably starting at
72‡ (22†).
X
Increasing/decreasing: Press button
9 or : until the desired temperature
appears in display P (Y page 143). Adjusting air vents
G
Warning!
When operating the climate control, the air
that enters the passenger compartment
through the air vents can be very hot or very
cold (depending on the set temperature). This
may cause burns or frostbite to unprotected
skin in the immediate area of the air vents.
Always keep sufficient distance between
unprotected parts of the body and the air
vents. If necessary, use the air distribution
adjustment to direct the air to air vents in the
vehicle interior that are not in the immediate
area of unprotected skin.
For best possible performance of the climate
control: Climate control system
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X
Keep the air intake grille in front of the
windshield free of snow, leaves, sticks, and
any other debris.
X Always keep all air vents and grilles in the
passenger compartment free from
obstruction.
i For draft-free ventilation, move the
adjustable center and side air vents to the
middle position.
Center air vents :
Left center air vent, adjustable
; Right center air vent, adjustable
= Thumbwheel for air volume control for
adjustable right center air vent
? Thumbwheel for air volume control for
adjustable left center air vent
X Opening/closing: Turn thumbwheels =
and ? upward or downward. Side air vents Example illustration driver’s side
:
Left side defroster air vent, fixed
; Left side air vent, adjustable
= Thumbwheel for air volume control for
adjustable left side air vent
X Opening/closing: Turn thumbwheel = in
the required direction.
Front armrest storage compartment
ventilation The front armrest storage compartment can
be ventilated, for instance to cool its
contents, when the climate control system is
activated. The level of airflow to the front
armrest storage compartment depends on
the airflow and air distribution settings. The
temperature of the air is approximately the
same as that of the air flowing from the center
air vents.
!
Close the front armrest storage
compartment air vent when heating the
vehicle interior. Activate the air
conditioning (cooling function) when the
outside temperature is high. Otherwise,
temperature-sensitive items stored in the
front armrest storage compartment could
be damaged. 148
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X
Opening/closing air vent: Slide lever :
up or down.
Rear center console air vents :
Left rear center air vent, adjustable
; Right rear center air vent, adjustable
= Thumbwheel for air volume control for
right rear center air vent
? Rear climate control panel
A Thumbwheel for air volume control for left
rear center air vent
X Opening/closing: Turn thumbwheel = or
A upward or downward. Adjusting air distribution
The air distribution can be adjusted
separately on each side of the passenger
compartment.
The symbols on the control represent the
following functions: Symbol Function
M
Directs air through the center,
side and defroster air vents to
the windshield and front door
windows
P
Directs air through the center
and side air vents
L
Directs air into the entire
vehicle interior
O
Directs air through the center
and side air vents and to the
footwells
X
Turn air distribution control : or C
(Y page 143) to the desired symbol.
You can also turn the air distribution control
to a position between two symbols. Adjusting air volume
X Decreasing/increasing: Press button
I or K. Front defroster
You can use this setting to defrost the
windshield, for example if it is iced up.
You can also defog the windshield and the
front door windows.
i Keep this setting selected only until the
windshield or the front door windows are
clear again.
X Activating: Press button ¬.
The indicator lamp in the button comes on.
The climate control switches to the following
functions automatically:
R cooling on to dehumidify
R most efficient blower speed and heating
power, depending on outside temperature Climate control system
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R
air flows onto the windshield and the front
door windows
R the air recirculation mode is switched off
i You can adjust the air volume, air
distribution and interior air temperature
when the front defroster is switched on.
X Deactivating: Press button ¬ again.
The indicator lamp in the button goes out.
The previous settings are once again in
effect. The cooling remains switched on.
The air recirculation remains switched off.
or
X Press button Ã.
The indicator lamp in button ¬ goes out.
Air volume and air distribution are adjusted
automatically.
Windshield fogged on the outside X
Switch the windshield wipers on
(Y page 92).
X Turn air distribution control to P or
O. Maximum cooling MAX COOL
MAX COOL is only available in U.S. vehicles.
MAX COOL is only operational when the
engine is running.
This provides the fastest possible cooling of
the vehicle interior (when windows and tilt/
sliding sunroof are closed). X
Activating: Press button Ù. MAX COOL
appears in display ? (Y page 143).
The air conditioning switches automatically to
the following functions:
R maximum cooling
R maximum blowing power
R the air recirculation mode is switched on
X Deactivating: Press button Ù again.
MAX COOL disappears in display ?.
The previous settings are once again in
effect.
i To switch the maximum cooling function
off,
you can also press button ^, Ã,
¬ or ¤. 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. G
Warning!
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 button
¬.
X Activating: Press button g.
The
indicator lamp in the button comes on.
i The air recirculation mode is activated
automatically

at high outside temperatures
and if the concentration of carbon
monoxide (CO) and nitrogen oxide in the
outside air increases, for example in a
tunnel. 150
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