MERCEDES-BENZ S-CLASS SEDAN 2013 Owners Manual

Useful information ............................
290
Overview of climate control sys-
tems ................................................... 290
Operating the climate control sys-
tem ..................................................... 292
Setting the air vents ......................... 298 289Climate 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 Please read the information on qualified
specialist workshops (Y page 31). Overview of climate control systems
Important safety notes
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 blocked filter replaced at a Mercedes-
Benz Center as soon as possible. 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.
The automatic climate control controls the
temperature and the humidity in the vehicle
interior and filters undesirable substances
from the air.
The automatic climate control is only
operational when the engine is running 16
.
Optimum operation is only achieved if you
drive with the side windows and sliding
sunroof/panorama roof with power tilt/
sliding panel closed. You can also set some automatic climate
control

functions via COMAND (Y page 265).
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the
convenience opening feature ( Y page 93).
This will speed up the cooling process and
the desired vehicle interior temperature
will be reached more quickly.
i The integrated filter can filter out most
particles of dust and completely filters out
pollen. 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 Service Booklet. As it
depends on environmental conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Service Booklet.
i It is possible that the blower may be
activated automatically 40 minutes after
the SmartKey is removed. The vehicle is
then ventilated for 30 minutes to dry the
air-conditioning system.
16 The residual heat function can only be activated/deactivated if the ignition is switched off.290
Overview of climate control systems
Climate control

Automatic climate control panel
Front control panel
: Sets climate control to automatic mode, left (Y page 293)
; Sets the temperature, left ( Y page 294)
= Sets the airflow, left ( Y page 295)
? Defrosts the windshield ( Y page 296)
A Activates/deactivates air-recirculation mode (Y page 297)
B Switches climate control on /off( Y page 292)
C Switches the residual heat function on/off( Y page 298)
D Switches the rear window defroster on/off ( Y page 297)
E Sets the airflow, right ( Y page 295)
F Sets the temperature, right ( Y page 294)
G Sets climate control to automatic mode, right (Y page 293)
Rear control panel
H Sets the temperature, left ( Y page 294)
I Sets the air distribution, left (Y page 295)
J Sets the airflow ( Y page 295)
K OFF Switches rear-compartment climate control off (Y page 292)
AUTO Sets rear-compartment climate control to automatic mode
(Y page 293)
MAN Sets rear-compartment climate control to manual mode
(Y page 293)
L Sets the air distribution, right (Y page 295)
M Sets the temperature, right ( Y page 294) Overview of climate control systems
291
Climate control Z

Notes on using 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 Ã
rocker switch. The indicator lamp in the
à rocker switch lights up.
R Set the temperature to
72 ‡ (22 †).
R Only use the "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 as, in air-recirculation
mode, no fresh air is drawn into the vehicle.
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. Operating the climate control system
Activating/deactivating climate
control
Important information 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.
i Switch on climate control primarily using
the à rocker switch ( Y page 293).Switching the front climate control on/
off using the front control panel X
Turn the SmartKey to position 2 in the
ignition lock.
X To activate: press the ^ rocker switch
up or down.
The indicator lamp in the rocker switch
goes out. The previously selected settings
come into effect again.
X To deactivate: press the ^ rocker
switch up or down.
The indicator lamp in the rocker switch
lights up.
Switching the rear-compartment
climate control on/off using the front
control panel X
Turn the SmartKey to position 2 in the
ignition lock.
X Activate the Y rear compartment
function via COMAND ( Y page 268).
The rear-compartment climate control can
be controlled via the front control panel
using

the Y rear compartment function.
X To activate: press the ^ rocker switch
up or down.
The indicator lamp in the rocker switch
goes out. The previously selected settings
come into effect again.
X To deactivate: press the ^ rocker
switch up or down.
The indicator lamp in the rocker switch
lights up. 292
Operating the climate control system
Climate control

Switching the rear-compartment
climate control on/off using the rear
control panel
X
Turn the SmartKey to position 2 in the
ignition lock.
X To switch on: press rocker switch
K(Y page 291) up or down and select
AUTO.
or
X Press rocker switch K(Y page 291) up or
down and select MAN.
X To switch off: press rocker switch
K(Y page 291) up or down and select
OFF. Activating/deactivating cooling with
the air dehumidification function
Important information 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.
G
WARNING
If you switch off the cooling function, 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.
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.
You can activate or deactivate the cooling
with air dehumidification function via
COMAND (Y page 267).
i The cooling with air dehumidification
function uses refrigerant R134a. This
coolant does not contain
chlorofluorocarbons, and therefore does
not damage the ozone layer. Problems with the cooling with air
dehumidification function If you can no longer switch on the cooling with
air dehumidification function via COMAND,
the

cooling with air dehumidification function
is switched off due to a malfunction.
X Consult a qualified specialist workshop. Setting climate control to automatic
G
WARNING
If you switch off the cooling function, 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.
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.
Automatic mode will achieve optimal
operation if cooling with air dehumidification
is also activated. If desired, cooling with air
dehumidification can be deactivated.
Controlling the front climate control
using the front control panel X
Turn the SmartKey to position 2 in the
ignition lock.
X Set the desired temperature.
X To switch on: press the à rocker
switch up or down.
The indicator lamp in the à rocker
switch lights up. Operating the climate control system
293
Climate control Z

X
To deactivate: press the K rocker
switch up or down.
The indicator lamp in the à rocker
switch goes out.
or
X Set the air distribution using COMAND
(Y page 266).
The indicator lamp in the à rocker
switch goes out.
Controlling the rear-compartment
climate control automatically using the
front control panel X
Turn the SmartKey to position 2 in the
ignition lock.
X Activate the Y rear compartment
function via COMAND ( Y page 268).
Rear-compartment climate control can be
controlled

via the front control panel using
the Y rear compartment function.
X Set the desired temperature.
X To switch on: press rocker switch Ã
up or down.
The indicator lamp in the à rocker
switch lights up.
X To deactivate: press the K rocker
switch up or down.
The indicator lamp in the à rocker
switch goes out.
or
X Set the air distribution using COMAND
(Y page 266).
The indicator lamp in the à rocker
switch goes out.
i To
return to the standard display, activate
the front climate control function via
COMAND (Y page 268).
i The rear display changes to the standard
display automatically after five seconds. Controlling the rear-compartment
climate

control automatically using the
rear control panel X
Turn the SmartKey to position 2 in the
ignition lock.
X Set the desired temperature.
X To activate: press
rocker switch K up or
down and select AUTO(Y page 291).
X To deactivate: press rocker switch K up
or down and select MAN or
OFF(Y page 291). Setting the temperature
Climate control climate zones
You

can select different temperature settings
for the driver's and front-passenger sides as
well as for the left and right sides of the rear
compartment and the footwells.
Setting the front-compartment
temperature using the front control
panel X
Turn the SmartKey to position 2 in the
ignition lock.
X To increase/reduce: press the w
rocker switch up or down.
Only change the temperature setting in
small increments. Start at

72 ‡ (22 †).
i You can also use COMAND to set the
temperature ( Y page 265).294
Operating the climate control system
Climate control

Setting the temperature in the rear
compartment using the front control
panel
X
Turn the SmartKey to position 2 in the
ignition lock.
X Activate the Y rear compartment
function via COMAND ( Y page 268).
The rear-compartment climate control can
be controlled via the front control panel
using
the Y rear compartment function.
X To increase/reduce: press the w
rocker switch up or down.
Only change the temperature setting in
small increments. Start at

72 ‡ (22 †).
i To
return to the standard display, activate
the front climate control function via
COMAND (Y page 268).
i The rear display changes to the standard
display automatically after five seconds.
Setting the temperature in the rear
compartment using the rear control
panel X
Turn the SmartKey to position 2 in the
ignition lock.
X To increase/reduce: press rocker
switch H or M up or down ( Y page 291).
Only change the temperature setting in
small increments. Start at

72 ‡ (22 †).
Setting the footwell temperature The footwell temperature can be set via
COMAND (Y page 268).
Setting the air distribution
Air distribution settings The air distribution can be set individually for
the driver's and front-passenger sides.
¯
Directs air through the defroster vents
P Directs air through the center and side
air vents O
Directs the airflow through the
footwell air vents
S Directs air through the center, side and
footwell vents
a Directs air through the defroster and
footwell vents
_ Directs air through the defroster,
center, side and footwell vents
b Directs air through the defroster,
center and side air vents
W Sets the air distribution to automatic
Setting the air distribution in the front/
rear compartment using COMAND The air distribution can be set using COMAND
(Y page 266).
Setting the rear-compartment air
distribution

using the rear control panel X
Turn the SmartKey to position 2 in the
ignition lock.
X Press rocker switch I or L up or down
repeatedly
(Y page 291) until the desired
air distribution symbol is shown in the
display. Setting the airflow
Setting the front-compartment airflow
using the front control panel You can select different airflow settings for
the

driver's and front-passenger sides as well
as for the rear compartment.
You can also use COMAND to set the airflow
(Y page 266).
X Turn the SmartKey to position 2 in the
ignition lock.
X To increase/reduce: press the K
rocker switch up or down. Operating the climate control system
295
Climate control Z

Setting the rear-compartment airflow
using the front control panel
X
Turn the SmartKey to position 2 in the
ignition lock.
X Activate the Y rear compartment
function via COMAND ( Y page 268).
The rear-compartment climate control can
be controlled via the front control panel
using
the Y rear compartment function.
X To increase/reduce: press the K
rocker switch up or down.
Setting the rear-compartment airflow
using the rear control panel X
Turn the SmartKey to position 2 in the
ignition lock.
X To increase/reduce: press rocker switch
J up or down ( Y page 291).Defrosting the windshield
You can use this function to defrost the
windshield or to defrost the inside of the
windshield and the side windows.
i You should only select the defrosting
function

until the windshield is clear again.
X Turn the SmartKey to position 2 in the
ignition lock.
X To switch on: press the ¬ rocker
switch up or down.
The indicator lamp in the ¬ rocker
switch lights up.
The

climate control system switches to the
following functions:
R cooling with air dehumidification on
R high airflow 17
R high temperature 17
R air distribution to the windshield and
front side windows
R air-recirculation mode off X
To deactivate: press the ¬ rocker
switch up or down.
The indicator lamp in the ¬ rocker
switch goes out. The previously selected
settings

come into effect again. The cooling
with air dehumidification function remains
on. Air-recirculation mode remains
deactivated.
or
X Press the w rocker switch up or down.
or
X Press the K rocker switch up or down. MAX COOL maximum cooling
The MAX COOL function is only available in
vehicles for the USA.
MAX COOL is only operational when the
engine is running.
The MAX COOL function is activated
automatically:
R if climate control is set to automatic
(Ã) on both sides
R if additional cooling is used
The display shows MAX COOL.
This is the quickest way to cool the vehicle
interior

when the sliding sunroof and the side
windows are closed. Defrosting the windows
Windows fogged up on the inside X
Activate the cooling with air
dehumidification function via COMAND
(Y page 267).
X Activate automatic mode Ã.
X If the windows continue to fog up, activate
the defrosting function

(Y page 296).
i You should only select this setting until
the windshield is clear again.
17 Depending on the outside temperature.296
Operating the climate control system
Climate control

Windows fogged up on the outside
X
Switch on the windshield wipers.
X Activate automatic climate control.
i You should only select this setting until
the windshield is clear again. Rear window defroster
Activating/deactivating G
WARNING
Any accumulation of snow and ice should be
removed from the rear window before driving.
Visibility could otherwise be impaired,
endangering you and others.
The rear window defroster has a high current
draw. You should therefore switch it off as
soon as the window is clear as it only switches
off automatically after several minutes.
If the battery voltage is too low, the rear
window defroster may switch off.
X Turn the SmartKey to position 2 in the
ignition lock.
X Press the ¤ rocker switch up or down.
The indicator lamp in the ¤ rocker
switch lights up or goes out.
Problems with the rear window
defroster The rear window defroster has deactivated
itself prematurely or cannot be activated.
X
Switch off any consumers that are not
required, e.g. reading lamps or interior
lighting.
When the battery is sufficiently charged,
the rear window defroster is activated
again automatically. Activating/deactivating air-
recirculation mode
You can deactivate the flow of fresh air if
unpleasant odors are entering the vehicle from outside. The air already inside the
vehicle will then be recirculated. 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 the ¬
button.
X Turn the SmartKey to position 2 in the
ignition lock.
X To activate: press the g rocker switch
up or down.
The indicator lamp in the g rocker
switch lights up.
i Air-recirculation mode is activated
automatically at high outside
temperatures. The indicator lamp in the
g rocker switch is not lit when
automatic air-recirculation mode is
activated.
Outside air is added after about 30
minutes.
X To deactivate: press the g rocker
switch up or down.
The indicator lamp in the g rocker
switch goes out.
i Air-recirculation mode deactivates
automatically:
R after approximately five minutes if
outside

temperatures are less than about
41 ‡ (5 †)
R after approximately five minutes if
cooling with air dehumidification is
deactivated
R after approximately 30 minutes if outside
temperatures are over about
41 ‡ (5 †) Operating the climate control system
297
Climate control Z

Activating/deactivating the residual
heat function
It
is possible to make use of the residual heat
of the engine to continue heating the
stationary vehicle for up to 30 minutes after
the engine has been switched off. The heating
time depends on the temperature that has
been set.
i The blower will run at a low speed
regardless of the airflow setting.
i If you activate the residual heat function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.
X Turn the SmartKey to position 0 in the
ignition lock or remove it.
X To activate: press the Ì rocker switch
up or down.
The indicator lamp in the Ì rocker
switch lights up.
X To deactivate: press the Ì rocker
switch up or down.
The indicator lamp in the Ì rocker
switch goes out.
i Residual heat is deactivated
automatically:
R after about 30 minutes
R when the ignition is switched on
R if the battery voltage drops
R if the coolant temperature is too low Setting the air vents
Important safety notes
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
could 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.
In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes:
R keep the air intake grille on the hood free
of blockages, such as ice, snow or leaves
R never cover the air vents or air intake grille
in the vehicle interior.
i For virtually draft-free ventilation, adjust
the sliders of the air vents to the center
position. Setting the center air vents
:
Fixed center air vent
; Center air vent, right
= Center vent thumbwheel, right
? Center vent thumbwheel, left
A Center air vent, left
X To open/close: turn thumbwheels =
and ? up or down. 298
Setting the air vents
Climate control