Page 137 of 409

!
Never open the bonnet if a windscreen
wiper arm has been folded away from the
windscreen.
Never fold a windscreen wiper arm without
a wiper blade back onto the windscreen/
rear window.
Hold the windscreen wiper arm firmly when
you change the wiper blade. If you release
the windscreen wiper arm without a wiper
blade and it falls onto the windscreen, the
windscreen may be damaged by the force
of the impact.
Mercedes-Benz recommends that you have
the wiper blades replaced by aqualified
specialist workshop, e.g. at a Mercedes-
Benz Service Centre. Problems with the windscreen wipers
The windscreen wipers are obstructed Leaves or snow, for example, may be
obstructing the windscree nwiper movement.
The wiper motor has been deactivated.
X For safety reasons, you should remove the
key from the ignition lock.
or
X Switch off the engine using the Start/Stop
button and open the driver's door.
X Remove the cause of the obstruction.
X Switch the windscreen wipers back on.
The windscreen wipers are inoperative The windscreen wiper drive is malfunctioning.
X
Selec tanothe rwiper speed on the combi-
nation switch.
X Have the windscreen wipers checked at a
qualified specialist workshop.
The spray nozzles are misaligned The windscreen washer fluid fro
mthe spray
nozzles no longer hits the centre of the wind-
screen. The spray nozzles are misaligned. X
Have the spray nozzles adjusted at a quali-
fied specialist workshop. 134
Windscreen wipersLights and windscreen wipers
Page 138 of 409
Useful information
............................136
Overview of climate control sys-
tems ................................................... 136
Operating the climate control sys-
tem ..................................................... 139
Adjusting the air vents .....................149 135Climate control
Page 139 of 409

Useful information
i This Owner's Manual describes all models
and all standard and optional equipment
available to your vehicle at the time of pub-
lication of the Owner's Manual. Country-
specific deviations are possible. Please
note that your vehicle may not be equipped
with all features described. This also
applies to safety-relevan tsystems and
functions.
i Please read the information on qualified
specialist workshops (Y page 25).Overview of climate control systems
Important safety notes
G
WARNING
Observe the settings recommended on the
following pages. The windows could other-
wise mis tup. This may preven tyou from
observing the traffic conditions, thereby caus-
ing an accident.
THERMATIC/THERMOTRONIC automatic cli-
mate control controls the temperature and
the humidity of the vehicle interior and filters
out undesirable substances from the air.
THERMATIC/THERMOTRONIC automatic cli-
mate control is only operational when the
engine is running 17
.O ptimum operation is
only achieved if you drive with the side win-
dows and sliding sunroof/panorama sliding
sunroof closed.
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature (Y page 96). 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.
Aclogged 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 residual heat func-
tion may be activated automatically an hour
after the key has been removed. The vehi-
cle is then ventilated for 30 minutes to dry
the air-conditioning system.
17 THERMOTRONIC automatic climate control: the residual heat function can only be activated/deactivated
when the ignition is switched off. 136
Overview of climate control systemsClimate control
Page 140 of 409

Control panel for THERMATIC automatic climate control (2-zone)
:
Activates/deactivates air-recirculation mode (Y page 144)
; Demists the windscreen (Y page 142)
= Activates/deactivates the ZONE function (Y page 142)
? Display
A Sets climate control to automatic mod e(Ypage 140)
B Activates/deactivates coolin gwith air dehumidification ( Ypage 139)
C Switches the rear window heating on/off (Y page 143)
D Switches climate control on/off (Y page 139)
E Sets the temperature, right (Y page 141)
F Sets the air distribution (Y page 141)
G Sets the airflow (Y page 142)
H Sets the temperature, left (Y page 141)Notes on using 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 Ãand
¿ buttons .The indicator lamps above
the à and¿ buttons light up.
R Set the temperature to 22 †.
R Only use the demisting function briefly,
until the windscreen is clear again.
R Only use the air-recirculation mode briefly,
e.g. if there are unpleasant outside odours
or when in a tunnel. The windows could otherwise mist up as no fresh air is drawn
into the vehicle in air-recirculation mode.
R Use the ZONE function to adopt the tem-
perature settings on the driver's side for
the front-passenger side as well. The indi-
cator lamp above the ábutton goes
out. Overview of climate control systems
137Climate control Z
Page 141 of 409
Control panel for THERMOTRONIC automatic climate control (3-zone)
Fron
tcontrol panel
: Sets climate control to automatic mode (Y page 140)
; Demists the windscreen (Y page 142)
= Activates/deactivates the ZONE function (Y page 142)
? Display
A Activates/deactivates air-recirculatio nmode (Y page 144)
B Activates/deactivates the residual heat function (Y page 145)
C Activates/deactivates cooling with air dehumidification ( Ypage 139)
D Switches the rear window heating on/off( Ypage 143)
E Switches climate control on/off (Y page 139)
F Sets the temperature, right (Y page 141)
G Sets climate control to automatic mode (FOCUS/MEDIUM/DIFFUSE )(Y page 140)
H Sets the airflow (Y page 142)
I Sets the air distribution (Y page 141)
J Sets the temperature, left (Y page 141)
Rear control panel
K Increases the temperature (Y page 141)
L Display
M Increases the airflow (Y page 142)138
Overview of climate control systemsClimate control
Page 142 of 409

N
Reduces the airflow ( Ypage 142)
O Reduces the temperature ( Ypage 141) Notes on using THERMOTRONIC auto-
matic climate control
The following contains instructions and rec-
ommendations to enable you to get the most
out of your THERMOTRONIC automati ccli-
mate control.
R Activate climate control using the Ãand
¿ buttons .The indicator lamps above
the à and¿ buttons light up. You
can also set the airflow and air distribution
of the automatic climate control to one of
three levels (FOCUS/MEDIUM/DIFFUSE).
You can set the desired level using button
G.T he MEDIUM level is recommended.
R Set the temperature to 22 †.
R Only use the demisting function briefly,
until the windscreen is clear again.
R Only use the air-recirculation mode briefly,
e.g. if there are unpleasant outside odours
or when in a tunnel. The windows could
otherwise mist up as no fresh air is drawn
into the vehicle in air-recirculation mode.
R Use the ZONE function to adopt the tem-
perature settings on the driver's side for
the front-passenger side and the rear com-
partment as well. The indicator lamp above
the á button goes out.
R Use the residual heat function if you want
to heat or ventilate the vehicle interior
when the ignition is switched off. The resid-
ual heat function can only be activated or
deactivated with the ignition switched off. Operating the climate control system
Switching climate control on/off
Important information i
When climate control is switched off, the
air supply and air circulation are also
switched off. Only select this setting briefly. Otherwise, the windows may mist
up.
i Switch on climate control primarily using
the à button (Y page 140).
Activating/deactivating X
Turn the key to position 2in the ignition
lock.
X To switch on: press theÃbutton.
The indicator lamp above the Ãbutton
lights up. Airflow and air distribution are set
to automatic mode.
or
X Press button ^.
The indicator lamp above the ^button
goes out. The previously selected settings
come into effect again.
X To switch off: press the^button.
The indicator lamp above the ^button
lights up. Activating/deactivating the cooling
with 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 dehu-
midified according to the temperature selec-
ted.
G
WARNING
If the "cooling with air dehumidification" func-
tion is deactivated, the air inside the vehicle
will not be cooled (during warm weather) or
dehumidified. The windows could mist up
more quickly. This may prevent you from
observing the traffic conditions, thereby caus-
ing an accident. Operating the climate control system
139Climate control Z
Page 143 of 409

Condensation may drip from the underside of
the vehicle when THERMOTRONI
Cis in cool-
ing mode. This is normal and not a sign that
there is a malfunction.
i The cooling with air dehumidification
function uses refrigerant R134a. This cool-
ant does not contain chlorofluorocarbons,
and therefore does not damage the ozone
layer.
Activating/deactivating X
To activate: press the¿button.
The indicator lamp above the ¿button
lights up.
X To switch off: press the¿button.
The indicator lamp above the ¿button
goes out. The cooling with air dehumidifi-
cation function has a delayed switch-off
feature.
Problems with the cooling with air
dehumidification function When you press the
¿button, the indica-
tor lamp in the button flashes three times or
remains off. You can no longer switch on the
cooling with air dehumidification function.
X Consult a qualified specialist workshop. Setting climate control to automatic
mode
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.
Automatic mode will achieve optimal opera-
tion if cooling with air dehumidification is also
activated. If desired, cooling with air dehu-
midification can be deactivated. X
Turn the key to position 2in the ignition
lock.
X Set the desired temperature.
X To activate: press theÃbutton.
The indicator lamp above the Ãbutton
lights up. Automatic air distribution and air-
flow are activated.
i THERMOTRONIC automatic climate con-
trol: when automatic mode is activated, you
can select a climate mode setting
(Y page 140).
X To deactivate: press the air distribution
button.
THERMATIC automatic climate control:
press button F(Ypage 137).
THERMOTRONIC automatic climate con-
trol: press button I(Ypage 138).
The indicator lamp above the Ãbutton
goes out.
or
X Press the airflow button.
THERMATIC automatic climate control:
press button G(Ypage 137).
THERMOTRONIC automatic climate con-
trol: press button H(Ypage 138).
The indicator lamp above the Ãbutton
goes out. Setting the climate mode
This function is only available with the
THERMOTRONIC automatic climate control.
The climate control settings are especially
effective at high temperatures.
You can select the following climate control
settings in automatic mode:
FOCUS high airflow that is set slightly cooler
MEDIUM medium airflow, standard setting
DIFFUSE low airflow that is set slightly warmer and with a lower rate of
airflow 140
Operating the climate control systemClimate control
Page 144 of 409

X
Turn the key to position 2in the ignition
lock.
X Press the Ãbutton.
X Press button Gup or down and select the
desired level (Y page 138) Setting the temperature
THERMATIC automatic climate control Different temperatures can be set for the
driver's and front-passenger sides.
X Turn the key to position 2in the ignition
lock.
X To increase/reduce: press switchEor
H up or down (Y page 137).
Only change the temperature setting in
small increments. Start at 22 †.
THERMOTRONIC automatic climate
control 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.
X Turn the key to position 2in the ignition
lock.
X To increase/reduce the temperature in
the front compartment: press switchF
or J up or down (Y page 138).
Only change the temperature setting in
small increments. Start at 22 †. X
To increase/reduce the temperature in
the rear compartment using the front
control panel: press theábutton.
The indicator lamp above the ábutton
goes out.
X Press switch ForJ up or down
(Y page 138).
Only change the temperature setting in
small increments. Start at 22 †.
X To increase/reduce the temperature in
the rear compartment using the rear
control panel: press buttonKor
O(Y page 138).
Only change the temperature setting in
small increments. Start at 22 †. 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 airflow through the centre and
side air vents as well as the footwell air
vents18
b Directs the airflow through the centre
and side air vents as well as the demis-
ter vents 18
a Directs the airflow through the foot-
well and demister vents
i Regardless of the air distribution setting,
airflow is always directed through the side
air vents. The side air vents can only be
closed when the controls on the side air
vents are turned downwards.
18 Only for certain countries. Operating the climate control system
141Climate control Z