2014 MERCEDES-BENZ C-CLASS ESTATE Owners Manual

Control panel for THERMOTRONIC automatic climate control (3-zone)
Vehicles with auxiliary heating
Front control panel
: To set the temperature, left (Y page 163)
; To set the air distribution, left (Y page 164)
= To set the airflow (Y page 165)
To switch the climate control off (Y page 160)
? To set climate control to automatic mode (Y page 162)
A To demist the windscreen (Y page 166)
B To call up the Audio 20/COMAND Online climate control menu; see the separate operating
instructions
To activate/deactivate the residual heat function (Y page 169)
C To switch the rear window heating on/off (Y page 167)
D To switch the auxiliary heating on/off (Y page 176)
E To activate/deactivate air-recirculation mode manually (Y page 168)
F To set the air distribution, right (Y page 164)
G To set the temperature, right (Y page 163)
Rear control panel
H To set the temperature (Y page 163)
I Display
J To set the airflow (Y page 165)158
Overview of climate control systemsClimate control

Vehicles without auxiliary heating
Front control panel
: To set the temperature, left (Y page 163)
; To set the air distribution, left (Y page 164)
= To set the airflow (Y page 165)
To switch the climate control off (Y page 160)
? To set climate control to automatic mode (Y page 162)
A To demist the windscreen (Y page 166)
B To call up the Audio 20/COMAND Online climate control menu; see the separate operating
instructions
To activate/deactivate the residual heat function (Y page 169)
C To switch the rear window heating on/off (Y page 167)
D To activate/deactivate cooling with air dehumidification (Y page 161)
E To activate/deactivate air-recirculation mode manually (Y page 168)
F To set the air distribution, right (Y page 164)
G To set the temperature, right (Y page 163)
Rear control panel
H To set the temperature (Y page 163)
I Display
J To set the airflow (Y page 165) Overview of climate control systems
159Climate control

Information about using
THERMOTRONIC automatic climate
control
THERMOTRONIC 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 Ã
rocker switch. The indicator lamp above
the à rocker switch lights up. The "Cool-
ing with air dehumidification" function is
not activated automatically in automatic
mode. If necessary, activate this function
(Y page 161).
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-
erwise mist up as no fresh air is drawn into the vehicle in air-recirculation mode.
R 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 deac-
tivated with the ignition switched off. The
residual heat function is deactivated when
the ignition is switched on.
AGILITY SELECT switch You can choose between various drive pro-
grams with the AGILITY SELECT switch
(Y page 201).
If you have selected drive program E, the cli-
mate control switches to Eco mode. In Eco mode:
R the cooling output is reduced when cooling
R when heating, the electrical heater booster
is deactivated and heat output is reduced
as a result
R the rear window heating running time is
reduced
If you have selected drive program C,Sor S+
the climate control switches to Comfort
mode. The current climate control settings
are maintained in Comfort mode.
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 191).
Hybrid vehicles The "Cooling with air dehumidification" func-
tion is available when the vehicle is opera-
tional and the indicator lamp above the
¿
rocker switch is lit.
If the internal combustion engine has been
shut off automatically, the set interior tem-
perature will be maintained for a certain
period of time. Operating the climate control system
Switching climate control on/off
General notes 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.
Switch on climate control primarily using the à rocker switch (Y page 162).160
Operating the climate control systemClimate cont
rol

Activating/deactivating
X
Turn the key to position 2in the ignition
lock (Y page 185).
X To switch on: press thet/!
rocker switch up or down.
The Audio 20/COMAND Online climate
control menu opens.
X Activate the climate control using the air-
conditioning function bar; see the separate
Audio 20/COMAND Online operating
instructions.
or
X Set the airflow to level 1 or higher using the
H button.
X To switch off: press thet/!
rocker switch up or down.
The Audio 20/COMAND Online climate
control menu opens.
X Deactivate the climate control using the
air-conditioning function bar; see the sep-
arate Audio 20/COMAND Online operating instructions.
or
X Set the airflow to level 0 using the H
rocker switch. Activating/deactivating the cooling
with air dehumidification function
General notes 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,
deactivate the "Cooling with air-dehumidifi-
cation" function only briefly.
For vehicles without hybrid drive, the "Cooling with air dehumidification" function is availa-
ble when the engine is running. For hybrid
vehicles, the "Cooling with air dehumidifica-
tion" function is also available via the electric refrigerant compressor when the engine is
not running. The air inside the vehicle is cooled and 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.
Activating/deactivating THERMATIC automatic climate control/
THERMOTRONIC automatic climate con-
trol without auxiliary heating
X To activate: press the¿rocker switch
up or down.
The indicator lamp above the rocker switch
lights up.
or X Activate the cooling with air dehumidifica-
tion function via Audio 20/COMAND
Online (see the separate operating instruc-
tions).
X To deactivate: press the¿rocker
switch up or down.
The indicator lamp above the rocker switch
goes out.
or X Deactivate the cooling with air dehumidifi-
cation function via Audio 20/COMAND
Online (see the separate operating instruc-
tions).
THERMOTRONIC automatic climate con-
trol with auxiliary heating
You can activate or deactivate the "Cooling
with air dehumidification" function using
Audio 20/COMAND Online (see the separate operating instructions). Operating the climate control system
161Climate control

Problems with the "Cooling with air dehumidification" function
Problem
Possible causes/consequences and
M
MSolutions THERMOTRONIC
with auxiliary heat-
ing:
cooling with air
dehumidification can
no longer be activated
using Audio 20/
COMAND Online, see
the separate operating
instructions. The cooling with air dehumidification function has been deactiva-
ted due to a malfunction.
X Visit a qualified specialist workshop. THERMATIC/
THERMOTRONIC
without auxiliary
heating:
the indicator
lamp over the
¿ rocker switch
flashes three times or
remains off. The cool-
ing with air dehumidifi-
cation function can
also no longer be acti-
vated using Audio 20/
COMAND Online (see
the separate operating
instructions). The cooling with air dehumidification function has been deactiva-
ted due to a malfunction.
X Visit a qualified specialist workshop. Setting climate control to automatic
mode
General notes 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. The "Cooling with air
dehumidification" function must be activated
manually in automatic mode. If necessary,
"Cooling with air dehumidification" can also
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,
deactivate the "Cooling with air-dehumidifi-
cation" function only briefly. 162
Operating the climate control systemClimate control

Automatic control
X
Turn the key to position 2in the ignition
lock (Y page 185).
X Set the desired temperature using the
w rocker switch on the front control
unit.
or X Set the desired temperature using
Audio 20/COMAND Online, see the sepa-
rate operating instructions.
X To activate: press theÃrocker switch
up or down.
The indicator lamp above the Ãrocker
switch lights up.
X To switch to manual operation: press the
H rocker switch up or down.
or
X Set the airflow using Audio 20/COMAND
Online, see the separate operating instruc-
tions.
or
X Press the upper or lower section of the
_ rocker switch.
or X Set the air distribution using Audio 20/
COMAND Online, see the separate operat-
ing instructions.
The indicator lamp above the Ãrocker
switch goes out.
In automatic mode, if you adjust the airflow or air distribution manually, the indicator lamp
above the Ãrocker switch goes out. The
function which has not been changed man-
ually, however, continues to be controlled
automatically. When the manually set func-
tion switches back to automatic mode, the
indicator lamp above the Ãrocker switch
lights up again. Setting the climate mode
This function is only available with
THERMOTRONIC automatic climate control. In automatic mode you can select the follow-
ing airflow settings for the driver's and front-
passenger areas:
FOCUS high airflow that is set slightly cooler
MEDIUM medium airflow, standard setting
DIFFUS Elow airflow that is set slightly
warmer and with less of a draught
X To set: set the climate mode using Audio
20/COMAND Online (see separate operat-
ing instructions). Setting the temperature
THERMATIC automatic climate control THERMATIC automatic climate control (2-
zone): the temperature for the driver's and
front-passenger side can be set individually.
X Turn the key to position 2in the ignition
lock (Y page 185).
X To increase/reduce: press the upper or
lower section of the wrocker switch.
or X Set the temperature using Audio 20/
COMAND Online, see the separate operat-
ing instructions.
Only change the temperature setting in
small increments. Start at 22 †. Operating the climate control system
163Climate control

THERMOTRONIC automatic climate
control General notes
THERMOTRONIC automatic climate control zones
You can select different temperature settings for the driver's and front-passenger sides as
well as for the rear compartment.
Setting the temperature in the front com-
partment using the front control panel
X Turn the key to position 2in the ignition
lock (Y page 185).
X To increase/reduce: press the upper or
lower section of the wrocker switch.
or X Set the temperature using Audio 20/
COMAND Online, see the separate operat-
ing instructions.
Only change the temperature setting in
small increments. Start at 22 †.
Setting the temperature in the rear com-
partment using the front control panel X Turn the key to position 2in the ignition
lock (Y page 185).
X Set the temperature with the wrocker
switch on the front control panel.
or
X Set the temperature using Audio 20/
COMAND Online, see the separate operat-
ing instructions.
Only change the temperature setting in
small increments. Start at 22 †. X
Press the upper or lower section of
the ! rocker switch.
The climate control menu in Audio 20/
COMAND Online opens.
X Select the synchronisation function, see
separate Audio 20/COMAND Online oper-
ating instructions.
The temperature setting for the driver's
side is adopted for the front-passenger side
and the rear compartment.
Setting the temperature in the rear com-
partment using the rear control panel
X Turn the key to position 2in the ignition
lock (Y page 185).
X To increase/reduce: press the upper or
lower section of the wrocker switch on
the rear control panel (Y page 158).
Only change the temperature setting in
small increments. Start at 22 †.
The set temperature appears on the rear-
compartment display. Setting the air distribution
Air distribution settings ¯
Directs the airflow through the demis-
ter vents
P Directs the airflow through the centre
and side air vents
O Directs the airflow through the foot-
well air vents
S Directs the airflow through the centre
and side air vents as well as the foot-
well air vents
a Directs the airflow through the foot-
well and demister vents
_ Directs the airflow through the demis-
ter vents, the centre and side air vents
as well as the footwell air vents
b Directs the airflow through the centre
and side air vents as well as the demis-
ter vents
W Sets the air distribution to automatic 164
Operating the climate control systemClimate control

Setting
THERMOTRONIC automatic climate control:
you can set the air distribution separately for
the driver's and front-passenger side.
X Turn the key to position 2(Y page 185).
X Press the _button up or down.
The various air distribution settings appear in Audio 20/COMAND Online.
X Press and hold the _button upwards
until the desired position is reached.
or X Set the air distribution using Audio 20/
COMAND Online; see the separate operat-
ing instructions. Setting the airflow
THERMATIC automatic climate control X
Turn the key to position 2in the ignition
lock (Y page 185).
X To increase/reduce: press the upper or
lower section of the Hrocker switch.
or
X Set the airflow using Audio 20/COMAND
Online, see the separate operating instruc-
tions.
THERMOTRONIC automatic climate
control Setting the front-compartment airflow
You can set the airflow separately for the
front and rear compartment.
X Turn the key to position 2in the ignition
lock (Y page 185).
X To increase/reduce: press the upper or
lower section of the Hrocker switch.
or
X Set the airflow using Audio 20/COMAND
Online; see the separate operating instruc-
tions. Setting the rear compartment airflow
X Turn the key to position 2in the ignition
lock (Y page 185).
X Press the upper or lower section of
the ! rocker switch.
The Audio 20/COMAND Online climate
control menu opens.
X Select the synchronisation function in the
climate control menu; see separate
Audio 20/COMAND Online operating
instructions.
The airflow setting for the front area is
adopted for the rear compartment.
Setting the rear compartment airflow
using the rear control panel
X Turn the key to position 2in the ignition
lock (Y page 185).
X To increase/reduce: press the upper or
lower section of the K/Irocker
switch on the rear control panel.
The selected airflow level is shown in the
rear-compartment display. Activating/deactivating the synchro-
nisation function
General notes The "Synchronisation" function is only avail-
able with THERMATIC automatic climate con-
trol (2-zone) and THERMOTRONIC automatic
climate control.
Climate control can be set centrally using the synchronisation function. The temperature
setting is adopted for the front-passenger
side. For THERMOTRONIC automatic climatecontrol, the temperature setting is adopted
for the front-passenger side and rear com-
partment. Operating the climate control system
165Climate control