2011 MERCEDES-BENZ S-Class Lights

Never fold a windshield wiper arm without
a wiper blade back onto the windshield.
Hold the windshield wiper arm firmly when
you change the wiper blade. If you release
the windshield wiper arm without a wiper
blade and it falls onto the windshield, the
windshield can be damaged by the force of
the impact.
Mercedes-Benz recommends that you have
the wiper blades replaced by a qualified
specialist workshop, e.g. at an authorized
Mercedes-Benz Center.
! Always position the windshield wiper
arms vertically before folding them away
from the windshield. By doing so, you will
avoid damage to the hood.
Replacing the windshield wiper blades
Moving the wiper arms to a vertical
position
Vehicles without KEYLESS-GO
XTurn the key to position 1 or 2 in the ignition
lock.
XSet the windshield wipers to
position ° on the combination switch.
XWhen the wiper arms have reached a
vertical position, turn the key to position
0 and remove it from the ignition lock.
Vehicles with KEYLESS-GO
XSwitch off the engine.XTake your foot off the brake pedal.XSet the windshield wipers to
position ° on the combination switch.
XPress the Start/Stop button repeatedly
until the windshield wipers start.
XWhen the wiper arms have reached a
vertical position, press the Start/Stop
button.
Removing the wiper bladesXFold the wiper arm away from the
windshield until it engages.
XSet the wiper blade at right angles to the
wiper arm.
XRemove the wiper blade from the retainer
on the wiper arm in the direction of the
arrow.
Installing the wiper blade
XSlide the new wiper blade into the retainer
on the wiper arm in the opposite direction
to the arrow.
Make sure that the wiper blade slides fully
into the retainer on the wiper arm.
XTurn the wiper blade parallel to the wiper
arm.
XFold the wiper arm back onto the
windshield.
Problems with the windshield wipers
The windshield wipers are obstructed
Leaves or snow, for example, may be
obstructing the windshield wiper movement.
The wiper motor has been deactivated.
XFor safety reasons, you should remove the
key from the ignition lock.
or
XSwitch off the engine using the Start/Stop
button and open the driver's door.
XRemove the cause of the obstruction.XSwitch the windshield wipers back on.282Windshield wipersLights and windshield wipers

The windshield wipers are inoperative
The windshield wiper drive is malfunctioning.
XSelect another wiper speed on the
combination switch.XHave the windshield wipers checked at a
qualified specialist workshop.Windshield wipers283Lights and windshield wipersZ

Automatic climate control control panelFunctioniNotes/tipsFront control panel:Sets climate control to
automatic, left
Activate climate control using the à rocker
switch. The indicator lamp in the à rocker switch
lights up.
;Sets the temperature, leftSet the temperature to 72 ‡ (22 †).=Sets the airflow, left?Defrosts the windshieldOnly use the "defrosting" function briefly until the
windshield is clear again.
AActivates/deactivates air-
recirculation mode
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.
BSwitches climate control on/
off
CSwitches the residual heat
function on/off
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.
Overview of climate control systems287Climate controlZ

FunctioniNotes/tipsDSwitches the rear window
defroster on/offESets the airflow, rightFSets the temperature, rightSet the temperature to 72 ‡ (22 †).GSets climate control to
automatic, rightActivate climate control using the à rocker
switch. The indicator lamp in the à rocker switch
lights up.Rear control panelHSets the temperature, leftSet the temperature to 72 ‡ (22 †).ISets the air distribution, leftJSets the airflowKOFF Deactivates the rear-
compartment climate control
AUTO Sets the rear-
compartment climate control
to automatic
MAN Sets the rear-
compartment climate control
to manualLSets the air distribution, rightMSets the temperature, rightSet the temperature to 72 ‡ (22 †).Operating the climate control
systems
Switching climate control on/off
Important information
GWarning!
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 Activate climate control primarily using
the à rocker switch ( Y page 289).
Activating/deactivating the front
climate control using the front control
panelXTurn the key to position 2 in the ignition
lock.XTo switch on: press the ^ rocker
switch up or down.
The indicator lamp in the rocker switch
goes out. The previously selected settings
come into effect again.XTo switch off: press the ^ rocker
switch up or down.
The indicator lamp in the rocker switch
lights up.288Operating the climate control systemsClimate control

Activating/deactivating the rear-
compartment climate control using the
front control panelXTurn the key to position 2 in the ignition
lock.XActivate the Y rear compartment
function via COMAND ( Y page 265).
The rear-compartment climate control can
be controlled via the front control panel
using the Y rear compartment function.XTo switch on: press the ^ rocker
switch up or down.
The indicator lamp in the rocker switch
goes out. The previously selected settings
come into effect again.XTo switch off: press the ^ rocker
switch up or down.
The indicator lamp in the rocker switch
lights up.
Activating/deactivating the rear-
compartment climate control using the
rear control panel
XTurn the key to position 2 in the ignition
lock.XTo activate: press rocker switch
K (Y page 287) up or down and select
AUTO .
or
XPress rocker switch K (Y page 287) up or
down and select MAN.XTo deactivate: press rocker switch
K (Y page 287) up or down and select
OFF .
Activating/deactivating cooling with
air dehumidification
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.GWarning
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 the automatic climate
control 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 263).
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.
XConsult a qualified specialist workshop.
Setting climate control to automatic
GWarning
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.
Operating the climate control systems289Climate controlZ

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
XTurn the key to position 2 in the ignition
lock.
XSet 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.
XTo switch off: press the K rocker
switch up or down.
The indicator lamp in the à rocker
switch goes out.
or
XSet the air distribution using COMAND
(Y page 262).
The indicator lamp in the à rocker
switch goes out.
Controlling the rear-compartment
climate control automatically using the
front control panel
XTurn the key to position 2 in the ignition
lock.
XActivate the Y rear compartment
function via COMAND (Y page 265).
Rear-compartment climate control can be
controlled via the front control panel using
the Y rear compartment function.
XSet 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.
XTo switch off: press the K rocker
switch up or down.
The indicator lamp in the à rocker
switch goes out.
or
XSet the air distribution using COMAND
(Y page 262).
The indicator lamp in the à rocker
switch goes out.
iTo return to the standard display, activate
the "front climate control" function via
COMAND (Y page 265).
iThe rear display changes to the standard
display automatically after five seconds.
Controlling the rear-compartment
climate control automatically using the
rear control panel
XTurn the key to position 2 in the ignition
lock.
XSet the desired temperature.X To activate: press rocker switch K up or
down and select AUTO (Y page 287).
XTo deactivate: press rocker switch K up
or down and select MAN or
OFF (Y page 287).
Setting the temperature
Climate control climate zones
You can select different temperature settings
for the driver's and front-passenger sides as
290Operating the climate control systemsClimate control

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 263).
XTurn the key to position 2 in the ignition
lock.XTo increase/reduce: press the K
rocker switch up or down.
Setting the rear-compartment airflow
using the front control panel
XTurn the key to position 2 in the ignition
lock.XActivate the Y rear compartment
function via COMAND ( Y page 265).
The rear-compartment climate control can
be controlled via the front control panel
using the Y rear compartment function.XTo increase/reduce: press the K
rocker switch up or down.
Setting the rear-compartment airflow
using the rear control panel
XTurn the key to position 2 in the ignition
lock.XTo increase/reduce: press rocker switch
J up or down ( Y page 287).
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.XTurn the SmartKey to position 2 in the
ignition lock.XTo 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 20
R high temperature 20
R air distribution to the windshield and
front side windows
R air-recirculation mode offXTo switch off: 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
XPress the w rocker switch up or down.
or
XPress the K rocker switch up or down.
Maximum cooling MAX COOL
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.
20
Depending on the outside temperature.292Operating the climate control systemsClimate control

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
XActivate the "cooling with air
dehumidification" function via COMAND
( Y page 263).XActivate automatic mode Ã.XIf the windows continue to fog up, activate
the defrosting function ( Y page 292).
i
You should only select this setting until
the windshield is clear again.
Windows fogged up on the outside
XActivate the windshield wipers.XActivate automatic climate control.
i You should only select this setting until
the windshield is clear again.
Rear window defroster
Activating/deactivating
GWarning
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 heating 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 heating may switch off.
XTurn the SmartKey to position 2 in the
ignition lock.XPress the ¤ rocker switch up or down.
The indicator lamp in the ¤ rocker
switch lights up or goes out.Problems with the rear window heating
The rear window heating has deactivated
itself prematurely or cannot be activated.
XSwitch off any consumers that are not
required, e.g. reading lamps or interior
lighting.
When the battery is sufficiently charged,
the rear window heating 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.
GWarning
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.
XTurn the SmartKey to position 2 in the
ignition lock.XTo 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.
Operating the climate control systems293Climate controlZ