2014 MERCEDES-BENZ S-Class climate control

Dashboard
Function Page
0043
Steering wheel paddle
shifters
183
0044
Combination switch 140
0087
Horn
0085
Instrument cluster 33
0083
DIRECT SELECT lever 179
0084
Overhead control panel 39
006B
Control panel for:
00CA
Lowering the rear
seat head restraints 123
0094
Extending/retracting
the rear roller sunblind 325
0073
PASSENGER AIR BAG
OFF indicator lamp 63
Setting the brightness of
the instrument cluster
lighting and the COMAND
display 006C
Ignition lock 171
Start/Stop button
171 Function Page
006D
Climate control systems 152
006E
Adjusts the steering wheel 127
Steering wheel heating 128
006F
Cruise control lever 200
0070
Electric parking brake 192
0071
Diagnostics connection 26
0072
Opens the hood 348
0073
Light switch 138
0074
Control panel for:
Activating Steering Assist 210
Switching on Active Lane
Keeping Assist 243
Deactivating PARKTRONIC 218
Switching on 360° camera 230
Activating Night View
Assist 23632
Dashboa
rdAt a glance

Useful information
............................152
Overview of climate control sys-
tems ................................................... 152
Operating the climate control sys-
tems ................................................... 155
Setting the air vents .........................166 151Climate control

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Read the information on qualified
specialist workshops: (Y page 27).Overview of climate control systems
Important safety notes
Observe the settings recommended on the
following pages. The windows could
otherwise fog up.
To prevent the windows from fogging up:
R switch off climate control only briefly
R switch on air-recirculation mode only
briefly
R switch on the cooling with air
dehumidification function
R switch on the defrost windshield function
briefly, if required
Climate control regulates the temperature
and air humidity in the vehicle interior. The air
filter cleans the air, thus improving the
interior climate.
The "Cooling with air dehumidification"
function is only available when the engine is
running. Optimum climate control is only
achieved with the side windows and roof
closed.
The residual heat function can only be
activated or deactivated with the ignition
switched off (Y page 163).
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the
convenience opening feature
(Y page 100). This will speed up the cooling process and the desired interior
temperature will be reached more quickly.
i The integrated filter filters out most
particles of dust and soot and completely
filters out pollen. It also reduces gaseous
pollutants and odors. 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
Maintenance Booklet. As it depends on
environmental conditions, e.g. heavy air
pollution, the interval may be shorter than
stated in the Maintenance Booklet.
i It is possible that the blower may be
activated automatically 60 minutes after
the key has been removed depending on
various factors, e.g. the outside
temperature. The vehicle is then ventilated
for 30 minutes to dry the automatic climate
control. 152
Overview of climate control systemsClimate control

Automatic climate control panel
USA only
Front control panel
0043 To set climate control to automatic, left (Y page 157)
0044 To set the temperature, left (Y page 159)
0087 To set the airflow, left ( Ypage 160)
0085 To activate/deactivate air-recirculation mode (Y page 163)
0083 To defrost the windshield (Y page 161)
0084 To call up the COMAND climate control menu
006B To switch the rear window defroster on/off (Y page 162)
006C To activate/deactivate the residual heat function (Y page 163)
006D To set the airflow, right ( Ypage 160)
006E To set the temperature, right (Y page 159)
006F To set climate control to automatic, right (Y page 157)
Rear control panel (only vehicles with rear-compartment climate control)
0070 To set the temperature, left (Y page 159)
0071 To set the air distribution, left (Y page 160)
0072 To set climate control to automatic (Y page 157)
0073 To set the airflow ( Ypage 160)
0074 To switch climate control on/off (Y page 155)
To activate/deactivate the residual heat function (Y page 163)
0075 To set the air distribution, right (Y page 160)
0076 To set the temperature, right (Y page 159) Overview of climate control systems
153Climate control

Canada only
Front control panel
0043 To set climate control to automatic, left (Y page 157)
0044 To set the temperature, left (Y page 159)
0087 To set the airflow, left ( Ypage 160)
0085 To activate/deactivate air-recirculation mode (Y page 163)
0083 To defrost the windshield (Y page 161)
0084 To call up the COMAND climate control menu
006B To switch the rear window defroster on/off (Y page 162)
006C To activate/deactivate the residual heat function (Y page 163)
006D To set the airflow, right ( Ypage 160)
006E To set the temperature, right (Y page 159)
006F To set climate control to automatic, right (Y page 157)
Rear control panel (only vehicles with rear-compartment climate control)
0070 To set the temperature, left (Y page 159)
0071 To set the air distribution, left (Y page 160)
0072 To set climate control to automatic (Y page 157)
0073 To set the airflow ( Ypage 160)
0074 To switch climate control on/off (Y page 155)
To activate/deactivate the residual heat function (Y page 163)
0075 To set the air distribution, right (Y page 160)
0076 To set the temperature, right (Y page 159)154
Overview of climate control systemsClimate control

Notes on using climate control
Automatic climate control Below, you can find a number of notes and
recommendations to help you use climate
control optimally.
R Activate climate control using the 0058
rocker switch. The indicator lamp in the
0058 rocker switch lights up.
R Set the temperature to 72 ‡ (22 †).
R Only use the "Windshield defrosting"
function briefly until the windshield is clear
again.
R Only use air-recirculation mode briefly, e.g.
if there are unpleasant outside odors or
when in a tunnel. The windows could
otherwise fog up, since 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 deactivated with the ignition switched
off. The residual heat function is switched
off when the ignition is switched on.
If you are controlling the rear climate control
using the front control panel, note the
following:
R If you set rear-compartment climate
control using the front control panel, the
00A4 symbol appears in the rear-
compartment control panel display.
R If the rear-compartment climate control is
set using the front control panel, it cannot
be set at the same time using the rear
control panel. If controlling the rear climate
control from the front control panel is
locked, wait five seconds. You will then be
able to control the rear climate control
using the rear control panel.
R After selecting the rear compartment
settings, the front climate control can be
controlled automatically again via
COMAND after five seconds. Alternatively, you can select "Cancel rear
compartment" in the COMAND air-
conditioning function bar.
ECO start/stop function During automatic engine switch-off, the
climate control only operates at a reduced
capacity. If you require the full climate control
output, you can switch off the ECO start/stop
function by pressing the ECO button
(Y
page 177). Operating the climate control
systems
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 fog up.
Therefore, switch off climate control only
briefly
Switch on climate control primarily using the
0058 rocker switch ( Ypage 157).
Switching the front climate control on
and off using the control panel X
Turn the SmartKey to position 2in the
ignition lock ( Ypage 171).
X To activate: press the008Arocker switch
up or down.
The COMAND climate control menu opens.
X Activate climate control via the air-
conditioning setting bar in COMAND (see
the separate operating instructions).
X To deactivate: press the008Arocker
switch up or down.
The COMAND climate control menu opens.
X Deactivate climate control via the air-
conditioning setting bar in COMAND (see
the separate operating instructions). Operating the climate control systems
155Climate control

Switching the front climate control on/
off using the control panel Observe the notes on controlling the rear-
compartment climate control using the front
control panel (Y page 155).
X Turn the SmartKey to position 2in the
ignition lock (Y page 171).
X To activate: press the008Arocker switch
up or down.
The COMAND climate control menu opens.
X Select "Rear adjustment" in the air-
conditioning setting bar (see the separate
COMAND operating instructions).
You can control the rear-compartment
climate control using the front control
panel or COMAND.
X Activate rear-compartment climate control
via the air-conditioning setting bar.
X To deactivate: press the008Arocker
switch up or down.
The COMAND climate control menu opens.
X Select "Rear adjustment" in the air-
conditioning setting bar (see the separate
COMAND operating instructions).
X Deactivate rear-compartment climate
control via the air-conditioning setting bar.
Switching rear-compartment climate
control on/off using the control panel X
Turn the SmartKey to position 2in the
ignition lock (Y page 171).
X To activate: press rocker switch 0074up or
down (Y page 153).
The indicator lamp in rocker switch 0074goes
out. All settings are displayed in full in the
rear-compartment display.
X To deactivate: press rocker switch 0074up
or down (Y page 153).
The indicator lamp in rocker switch 0074
lights up. OFF
OFF is displayed in the rear-
compartment display. Activating/deactivating cooling with
air dehumidification
General notes If you deactivate the "Cooling with air-
dehumidification" function, the air inside the
vehicle will not be cooled. The air inside the
vehicle will also not be dehumidified. The
windows can fog up more quickly. Therefore,
deactivate the cooling with air-
dehumidification function only briefly.
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.
Condensation may drip from the underside of
the vehicle when it is in cooling mode. This is
normal and not a sign that there is a
malfunction.
Activating/deactivating cooling with
air dehumidification You can activate or deactivate the "Cooling
with air dehumidification" function using
COMAND (see the separate operating
instructions).156
Operating the climate control systemsClimate control

Problems with the "Cooling with air dehumidification" function
Problem Possible causes/consequences and
0050
0050Solutions Cooling with air
dehumidification can
no longer be switched
on using COMAND (see
the separate operating
instructions). Cooling with air dehumidification has been deactivated due to a
malfunction.
X
Visit a qualified specialist workshop. Setting climate control to automatic
General notes 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.
The automatic mode functions optimally
when the "Cooling with air dehumidification"
function is activated. If necessary, cooling
with air dehumidification can be deactivated.
If you deactivate the "Cooling with air-
dehumidification" function, the air inside the
vehicle will not be cooled. The air inside the
vehicle will also not be dehumidified. The
windows can fog up more quickly. Therefore,
deactivate the cooling with air-
dehumidification function only briefly. Controlling front climate control
automatically using the front control
panel X
Turn the SmartKey to position 2in the
ignition lock (Y page 171).
X Set the desired temperature using the
0082 rocker switch on the front control
unit.
or
X Set the desired temperature using
COMAND (see the separate operating
instructions).
X To activate: press rocker switch 0058up
or down.
The indicator lamp in the 0058rocker
switch lights up.
X To switch to manual operation: press the
0097 rocker switch up or down.
or
X Set the airflow using COMAND (see the
separate operating instructions).
or
X Set the air distribution using COMAND (see
the separate operating instructions).
The indicator lamp in the 0058rocker
switch goes out.
In automatic mode, if you adjust the airflow
or air distribution manually, the indicator
lamp on the 0058rocker switch goes out. The
function which has not been changed
manually, however, continues to be
controlled automatically. When the manually
set function switches back to automatic Operating the climate control systems
157Climate control