climate control MERCEDES-BENZ CLA-CLASS 2013 User Guide

Control panel for THERMATIC automatic climate control:To set the temperature (Y page 130);To demist the windscreen ( Y page 132)=To set the air distribution ( Y page 131)?To activate/deactivate air-recirculation mode ( Y page 134)ATo set the airflow ( Y page 131)BTo activate/deactivate cooling with air dehumidification ( Y page 128)CTo switch the rear window heating on/off ( Y page 133)Notes on using THERMATIC automatic
climate control
Automatic climate control
The following contains notes and recommen-
dations on optimum use of THERMATIC auto-
matic climate control.
R Switch on the air-conditioning system by
turning control knob A clockwise to the
desired position (except position 0).
R Set the temperature to 22 †.
R Recommendation to avoid misting of
the windows in the event of low outside
temperatures or rain: switch on the air
distribution ¯ and if possible switch off
P and O (Y page 131).
Deactivate air-recirculation mode
e (Y page 134).
Set airflow control A to a setting between
3 and 6(Y page 131).
R Recommendation for rapid cooling or
heating of the vehicle interior: briefly set
airflow control A to a setting between 3
and 6(Y page 131).
R Recommendation for a constant vehi-
cle interior temperature: set airflow con-
trol A to a setting between 1 and
3 (Y page 131).
R Recommendation for air distribution in
winter: select the O and ¯ settings
( Y page 131).
Recommendation for air distribution in
summer: select the P or P and
¯ settings ( Y page 131).
R Only use the "Windscreen demisting" func-
tion briefly until the windscreen is clear
again.Overview of climate control systems125Climate controlProCarManuals.com

ROnly use air-recirculation mode briefly, e.g.
if there are unpleasant outside odours or
when in a tunnel. The windows could oth-
erwise mist up as no fresh air is drawn into
the vehicle in air-recirculation mode.
R Vehicles with COMAND Online: if you
change the settings of the climate control
system, the climate status display appears
for three seconds at the bottom of the
screen in the COMAND display. See also
the separate COMAND Online operating
instructions. You will see the current set-
tings of the various climate control func-
tions.
ECO start/stop function
During automatic engine switch-off, the cli-
mate control only operates at a reduced capa-
city. If you require the full climate control out-
put, you can switch off the ECO start/stop
function by pressing the ECO button
( Y page 149).
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Control panel for THERMOTRONIC automatic climate control (2-zone):To set the temperature, left (Y page 130);To set climate control to automatic mode ( Y page 130)=To demist the windscreen ( Y page 132)?To increase the airflow ( Y page 131)ATo set the air distribution ( Y page 131)BDisplayCTo activate/deactivate air-recirculation mode ( Y page 134)DTo switch climate control on/off ( Y page 128)ETo set the temperature, right ( Y page 130)FTo activate/deactivate the residual heat function ( Y page 135)GTo activate/deactivate cooling with air dehumidification ( Y page 128)HTo reduce the airflow ( Y page 131)ITo switch the rear window heating on/off ( Y page 133)JTo switch the ZONE function on/off ( Y page 131)Notes on using THERMOTRONIC auto-
matic climate control
Automatic climate control
The following contains instructions and rec-
ommendations to enable you to get the most
out of your THERMOTRONIC automatic cli-
mate control.
R Activate climate control using the à and
¿ buttons. The indicator lamps in the
à and ¿ buttons light up.
R Set the temperature to 22 †.
R Only use the "Windscreen demisting" func-
tion briefly until the windscreen is clear
again.
R Only use air-recirculation mode briefly, e.g.
if there are unpleasant outside odours or
when in a tunnel. The windows could oth-Overview of climate control systems127Climate controlProCarManuals.com

erwise mist up as no fresh air is drawn into
the vehicle in air-recirculation mode.
R Use the ZONE function to adopt the tem-
perature settings on the driver's side for
the front-passenger side as well. The indi-
cator lamp in the á button goes out.
R Use the residual heat function if you want
to heat or ventilate the vehicle interior
when the ignition is switched off. The resid-
ual heat function can only be activated or
deactivated with the ignition switched off.
R Vehicles with COMAND Online: if you
change the settings of the climate control
system, the climate status display appears
for three seconds at the bottom of the
screen in the COMAND display. See also
the separate COMAND Online operating
instructions. You will see the current set-
tings of the various climate control func-
tions.
ECO start/stop function
During automatic engine switch-off, the cli-
mate control only operates at a reduced capa-
city. If you require the full climate control out-
put, you can switch off the ECO start/stop
function by pressing the ECO button
( Y page 149).
Operating the climate control system
Switching climate control on/off
Points to observe before use
When the climate control is switched off, the
air supply and air circulation are also
switched off. The windows could mist up.
Therefore, only switch off climate control
briefly.
THERMATIC automatic climate controlXTurn the key to position 2 in the ignition
lock ( Y page 145).XTo switch on: turn control A clockwise to
the desired position (except position 0)
( Y page 125).XTo switch off: turn control A anti-clock-
wise to position 0 (Y page 125).
THERMOTRONIC automatic climate
control
XTurn the key to position 2 in the ignition
lock ( Y page 145).X To switch on: press the à button.
The indicator lamp in the à button lights
up. Airflow and air distribution are set to
automatic mode.
or
XPress the ^ button.
The indicator lamp in the ^ button goes
out. The previous settings are reactivated.XTo deactivate: press the ^ button.
The indicator lamp in the ^ button lights
up.
i THERMOTRONIC automatic climate con-
trol: switch on climate control primarily
using the à button.
Activating/deactivating the cooling
with air dehumidification function
Points to observe before use
If you deactivate the "Cooling with air dehu-
midification function", the air inside the vehi-
cle will not be cooled in warmer weather. The
air inside the vehicle will not be dehumidified
either. The windows can mist up more
quickly. Therefore, only switch off the "Cool-
ing with air dehumidification function" briefly.
The "Cooling with air dehumidification" func-
tion is only available when the engine is run-
ning. The air inside the vehicle is cooled and
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dehumidified according to the temperature
selected.
Condensation may drip from the underside of
the vehicle when cooling mode is active. This
is normal and not a sign that there is a mal-
function.
Switching on/offXTo activate: press the ¿ button.
The indicator lamp in the ¿ button lights
up.XTo deactivate: press the ¿ button.
The indicator lamp in the ¿ button goes
out. The "Cooling with air dehumidification"
function has a delayed switch-off feature.Operating the climate control system129Climate controlProCarManuals.com

Problems with the "Cooling with air dehumidification" functionProblemPossible causes/consequences and M SolutionsThe indicator lamp in
the ¿ button
flashes three times or
remains off. The "Cool-
ing with air dehumidifi-
cation function" cannot
be switched on.Cooling with air dehumidification has been deactivated due to a
malfunction.XVisit a qualified specialist workshop.Setting climate control to automatic
mode
Points to observe before use
Only THERMOTRONIC automatic climate con-
trol features the "Control climate control
automatically" function.
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the tem-
perature of the dispensed air, the airflow and
the air distribution.
The automatic mode functions optimally
when the "Cooling with air dehumidification"
function is activated. If desired, cooling with
air dehumidification can be deactivated.
If you deactivate the "Cooling with air-dehu-
midification" function, the air inside the vehi-
cle will not be cooled. The air inside the vehi-
cle will also not be dehumidified. The win-
dows can mist up more quickly. Therefore,
only deactivate the "Cooling with air-dehu-
midification" function briefly.
Setting climate control to automatic
mode
XTurn the key to position 2 in the ignition
lock ( Y page 145).XSet the desired temperature.XTo activate: press the à button.
The indicator lamp in the à button lights
up. Automatic air distribution and airflow
are activated.XTo switch to manual mode: press the
É or Ë button.
or
XPress the K or I button.
The indicator lamp in the à button goes
out. Automatic air distribution and airflow
are deactivated.
Setting the temperature
THERMATIC automatic climate control
You can set the temperature for the entire
vehicle.
XTurn the key to position 2 in the ignition
lock ( Y page 145).XTo increase/reduce: turn control :
clockwise or anti-clockwise ( Y page 125).
Only change the temperature setting in
small increments. Start at 22 †.
THERMOTRONIC automatic climate
control
Different temperatures can be set for the
driver's and front-passenger sides.
XTurn the key to position 2 in the ignition
lock ( Y page 145).XTo increase/reduce: turn controls : or
E clockwise or anti-clockwise
( Y page 127). Only change the temperature
setting in small increments. Start at 22 †.130Operating the climate control systemClimate control
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Setting the air distribution
THERMATIC automatic climate control
Air distribution settings
¯Directs the airflow through the demis-
ter ventsPDirects the airflow through the centre
and side air ventsODirects the airflow through the foot-
well air vents
i You can also activate several of the air
distribution settings simultaneously. In
order to do this, press several of the air
distribution buttons. The air is then routed
through different air vents.
Setting the air distribution
XTurn the key to position 2 in the ignition
lock ( Y page 145).XPress one or more of the P, O ,
¯ buttons.
The corresponding indicator lamp comes
on.
THERMOTRONIC automatic climate
control
Air distribution settings
¯Directs the airflow through the demis-
ter ventsPDirects the airflow through the centre
and side air ventsODirects the airflow through the foot-
well air ventsSDirects airflow through the centre and
side air vents as well as the footwell air
vents 8
.bDirects the airflow through the centre
and side air vents as well as the demis-
ter vents 8aDirects the airflow through the foot-
well and demister ventsi Regardless of the air distribution setting,
airflow is always directed through the side
air vents. The side air vents can only be
closed if the adjusters are turned clockwise
until they engage.
Setting the air distributionXTurn the key to position 2 in the ignition
lock ( Y page 145).XPress the É or Ë button until the
desired symbol appears in the display.
Setting the airflow
THERMATIC automatic climate control
XTurn the key to position 2 in the ignition
lock ( Y page 145).XTo increase/reduce: turn control A
clockwise or anti-clockwise ( Y page 125).
THERMOTRONIC automatic climate
control
XTurn the key to position 2 in the ignition
lock ( Y page 145).XTo increase/reduce: press the K or
I button.
Switching the ZONE function on/off
This function is only available with the
THERMOTRONIC automatic climate control.
XTo activate: press the á button.
The indicator lamp in the á button lights
up.
The temperature setting for the driver's
side is not adopted for the front-passenger
side.XTo deactivate: press the á button.
The indicator lamp in the á button goes
out.8 Only for certain countries.Operating the climate control system131Climate controlProCarManuals.com

The temperature setting for the driver's
side is adopted for the front-passenger
side.
Demisting the windscreen
You can use this function to defrost the wind-
screen or to demist the inside of the wind-
screen and the side windows.
i You should only select the "Windscreen
demisting" function until the windscreen is
clear again.
XTurn the key to position 2 in the ignition
lock ( Y page 145).XTo activate: press the ¬ button.
The indicator lamp in the ¬ button lights
up.
The climate control system switches to the
following functions:
R high airflow
R high temperature
R air distribution to the windscreen and
front side windows
R air-recirculation mode off
i The "Windscreen demisting" function
automatically sets the blower output to the
optimum demisting effect. As a result, the
airflow may increase or decrease automat-
ically after the button is pressed.
i You can adjust the blower output man-
ually while the "Windscreen demisting"
function is in operation:
R THERMATIC automatic climate control:
turn airflow control A clockwise or anti-
clockwise ( Y page 125).
R THERMOTRONIC automatic climate con-
trol: press the ó or ô button.
XTo deactivate: press the ¬ button.
The indicator lamp in the ¬ button goes
out. The previous settings are reactivated.
Air-recirculation mode remains deactiva-
ted.
or
XTHERMOTRONIC automatic climate con-
trol: press the à button.
The indicator lamp in the ¬ button goes
out. Airflow and air distribution are set to
automatic mode.
or
XTHERMATIC automatic climate control:
turn temperature control : clockwise or
anti-clockwise ( Y page 125).
THERMOTRONIC automatic climate con-
trol: turn temperature control : or E
clockwise or anti-clockwise ( Y page 127).
Demisting the windows
Windows misted up on the inside
THERMATIC automatic climate control
XActivate the ¿ "Cooling with air dehu-
midification" function.XIf the windows continue to mist up, activate
the ¬ "Windscreen demisting" function.
i
You should only select this setting until
the windscreen is clear again.
THERMOTRONIC automatic climate con-
trol
XActivate the ¿ "Cooling with air dehu-
midification" function.XActivate automatic mode Ã.XIf the windows continue to mist up, activate
the ¬ "Windscreen demisting" function.
i
You should only select this setting until
the windscreen is clear again.
Windows misted up on the outside
XActivate the windscreen wipers.XSet the air distribution to P or O .
i
You should only select this setting until
the windscreen is clear again.
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Rear window heating
Switching on/off
The rear window heating has a high current
draw. You should therefore switch it off as
soon as the window is clear. It otherwise
switches off automatically after several
minutes.
If the battery voltage is too low, the rear win-
dow heating may switch off.
XTurn the key to position 2 in the ignition
lock ( Y page 145).XPress the ¤ button.
The indicator lamp in the ¤ button lights
up or goes out.Operating the climate control system133Climate controlProCarManuals.com

Problems with the rear window heatingProblemPossible causes/consequences and M SolutionsThe rear window heat-
ing has switched off
prematurely or cannot
be activated.The battery has not been sufficiently charged.XSwitch off any consumers that are not required, e.g. reading
lamps, interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window heat-
ing can be activated again.Activating/deactivating air-recircula-
tion mode
Points to observe before use
You can deactivate the flow of fresh air if
unpleasant odours are entering the vehicle
from outside. The air already inside the vehi-
cle will then be recirculated.
If you switch on air-recirculation mode, the
windows can mist up more quickly, in partic-
ular at low temperatures. Only use air-recir-
culation mode briefly to prevent the windows
misting up.
The operation of air-recirculation mode is the
same for all control panels.
Activating/deactivating
XTurn the key to position 2 in the ignition
lock ( Y page 145).XTo activate: press the e button.
The indicator lamp in the e button lights
up.
i Air-recirculation mode is activated auto-
matically at high outside temperatures.
When air-recirculation mode is activated
automatically, the indicator lamp in the
e button is not lit.
Outside air is added after about
30 minutes.
XTo deactivate: press the e button.
The indicator lamp in the e button goes
out.i Air-recirculation mode is deactivated
automatically:
R after approximately five minutes at out-
side temperatures below about 5 †
R after approximately five minutes if the
"Cooling with air dehumidification" func-
tion is deactivated
R after approximately 30 minutes at out-
side temperatures above approximately
5 † if the "Cooling with air dehumidifi-
cation" function is activated
Convenience opening/closing using
the air-recirculation button
GWARNING
When the convenience closing feature is oper-
ating, parts of the body could become trapped
in the closing area of the side window and the
sliding sunroof. There is a risk of injury.
Observe the complete closing procedure
when the convenience closing feature is oper-
ating. When closing make sure that no parts
of the body are in the closing area.
GWARNING
During convenience opening parts of the body
could be drawn in or become trapped
between the side window and window frame.
There is a risk of injury.
When opening, make sure that nobody is
touching the side window. If someone
becomes trapped, press the W switch
immediately to open/close the side window
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