2014 MERCEDES-BENZ C-CLASS ESTATE climate control

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 full climate control output,
you can switch off the ECO start/stop func-
tion by pressing the ECO button
(Y page 191). 154
Overview of climate control systemsClimate control

Control panel for THERMATIC automatic climate control (2-zone)
Vehicles with auxiliary heating
:
To set the temperature, left (Y page 163)
; To set the air distribution (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 activate/deactivate cooling with air dehumidification (Y page 161)
G To set the temperature, right (Y page 163) Overview of climate control systems
155Climate control

Vehicles without auxiliary heating
:
To set the temperature, left (Y page 163)
; To set the air distribution (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
C To switch the rear window heating on/off (Y page 167)
D To activate/deactivate synchronisation (Y page 165)
E To activate/deactivate air-recirculation mode manually (Y page 168)
F To activate/deactivate cooling with air dehumidification (Y page 161)
G To set the temperature, right (Y page 163)Information about using THERMATIC
automatic climate control (2‑zone)
THERMATIC automatic climate control The following contains notes and recommen-
dations on optimum use of THERMATIC auto-
matic climate 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. 156
Overview of climate control systemsClimate control

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. Overview of climate control systems
157Climate control

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