Replacing the wiper blades
Important safety notes G
WARNING
For safety reasons, switch off the windshield
wipers and remove the SmartKey from the
ignition lock
before changing the wiper blades
(vehicles with KEYLESS-GO: make sure that
the on-board electronics are in state 0).
Otherwise, the wiper motor could be switched
on suddenly and cause injury.
! To avoid damaging the wiper blades,
make sure that you touch only the wiper
arm of the wiper.
! Never open the hood if a windshield wiper
arm has been folded away from the
windshield.
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 may be damaged by the force of
the impact.
Mercedes-Benz recommends that you have
the wiper blades changed at a qualified
specialist workshop.
! Always position the windshield wiper
arms vertically before folding them away
from the windshield. By doing so, you will
avoid damage to the hood.
Changing the windshield wiper blades Moving the wiper arm to a vertical
position
On vehicles without KEYLESS-GO:
X
Turn
the SmartKey to position
1 or 2
in the
ignition lock.
X Set the windshield wipers to
position °.
X When the wiper arms have reached a
vertical position, turn the SmartKey to position 0 and remove it from the ignition
lock.
X Fold the wiper arm away from the
windshield until it engages.
On vehicles with KEYLESS-GO:
X Switch off the engine.
X Remove your foot from the brake pedal.
X Set the windshield wipers to
position °.
X Press the Start/Stop button repeatedly
until the windshield wipers start.
X When the wiper arms have reached a
vertical position, press the Start/Stop
button.
X Fold the wiper arm away from the
windshield until it engages.
Removing the wiper blades X
To bring the wiper blade into position
to be removed:
hold the wiper arm with
one hand and push the wiper blade in the
direction of arrow = with the other hand.
The wiper blade engages with an audible
click.
X To remove a wiper blade: firmly press
release knob ; and pull the wiper blade
upwards :. Windshield wipers
119
Lights and windshield wipers Z
Installing the wiper blades
X
Position the new wiper blade with tab ; in
the retainer on the wiper arm and slide it
into place in the direction of arrow
:.
The wiper blade audibly engages.
X Push the wiper blade back into position in
the direction of arrow =.
The wiper blade is freely movable again.
X Make sure that wiper blade is seated
correctly.
X Fold the wiper arm back onto the
windshield. Problems with the windshield wipers
The windshield wipers are obstructed X
For safety reasons, you should remove the
SmartKey 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 windshield wipers back on.
The windshield wipers are inoperative The windshield wiper drive is malfunctioning.
X
Select another wiper speed on the
combination switch.
X Have the windshield wipers checked at a
qualified specialist workshop.120
Windshield wipers
Lights and windshield wipers
for the front-passenger side as well. The
indicator
lamp
in 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
"residual heat" function can only be
activated or deactivated with the ignition
switched off. Operating the climate control
systems
Activating/deactivating climate
control
General notes G
WARNING
When the climate control system is switched
off, the outside air supply and circulation are
also switched
off. Only choose this setting for
a short time when the retractable hardtop
(vario-roof) is closed. Otherwise, the windows
could fog up, impairing visibility and
endangering you and others.
i Switch on climate control primarily using
the à button ( Y page 126).
Activating/deactivating X
Turn the SmartKey to position 2 in the
ignition lock.
X To switch on: press button Ã.
The indicator
lamp in the à button lights
up. Airflow and air distribution are set to
automatic mode.
or
X Press the ^ button.
The indicator
lamp in the ^ button goes
out. The previously selected settings come
into effect again.
X To switch off: press the ^ button.
The indicator
lamp in the ^ button lights
up. Activating/deactivating cooling with
air dehumidification
General notes 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. This may prevent you from
observing the traffic conditions, thereby
causing an accident.
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.
i The cooling with air dehumidification
function uses refrigerant R1234yF. This
coolant does not contain
chlorofluorocarbons, and therefore does
not damage the ozone layer.
Activating/deactivating Example: ¿ buttonOperating the climate control systems
125
Climate control Z
X
To activate: press the ¿ button.
The indicator
lamp in the ¿ button lights
up.
X To deactivate: press the ¿ button.
The indicator
lamp in the ¿ button goes
out. The cooling with air dehumidification
function has a delayed switch-off feature.
Problems with the cooling with air
dehumidification function When you press the
¿ button, the
indicator lamp in the button flashes three
times or
remains off. You can no longer switch
on the cooling with air dehumidification
function.
X Visit 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.
X
Turn the SmartKey to position 2 in the
ignition lock.
X Set the desired temperature.
X To activate: press the à button.
The indicator
lamp in the à button lights
up. Automatic air distribution and airflow
are activated.
i Dual-zone automatic climate control:
when automatic
mode is activated, you can
select a climate mode ( Y page 126).
X To switch off: press the _ button.
or
X Press the I or K button.
The indicator
lamp in the à button goes
out. Adjusting the climate mode settings
(AIR FLOW)
You can select the following climate mode
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 less draft
The climate mode settings are especially
effective at high outside temperatures. Example: ñ button126
Operating the climate control systems
Climate control
X
Turn the SmartKey to position 2 in the
ignition lock.
X Press the à button.
X Press the ñ button repeatedly until the
desired climate mode appears in the
display. Setting the temperature
Different temperatures can be set for the
driver's and front-passenger sides.
X
Turn the SmartKey to position 2 in the
ignition lock.
X Turn controls : or D clockwise or
counter-clockwise.
Only change the temperature setting in
small increments. Start at 72 ‡ (22 †
).Setting the air distribution X
Turn the SmartKey to position 2 in the
ignition lock.
X Press the _ button repeatedly until the
desired symbol appears in the display.
P Directs air through the center and side
air vents
O Directs air through the footwell air
vents
S Directs air through the center, side and
footwell vents
¯ Directs air through the defroster vents
b Directs air through the defroster,
center and side air vents 1
a Directs air through the defroster and
footwell vents
_ Directs air through the defroster,
center and
side air vents as well as the
footwell air vents 1
.
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. Setting the airflow
X
Turn the SmartKey to position 2 in the
ignition lock.
X To increase: press the K button.
X To reduce: press the I button.
1 Canada only. Operating the climate control systems
127
Climate control Z
Switching the ZONE function on/off
X
To switch on: press the á button.
The indicator
lamp in the á button lights
up. The temperature setting for the driver's
side is not adopted for the front-passenger
side.
X To switch off: press the á button.
The indicator
lamp in the á button goes
out. The temperature setting for the
driver's side is adopted for the front-
passenger side. Defrosting the windshield
Example:
¬ button
You can use this function to defrost the
windshield or to demist the inside of the
windshield and the side windows.
Switch off
the defrosting function as soon as
the windshield is clear again. X
Turn the SmartKey to position 2 in the
ignition lock.
X To activate: press the ¬ button.
The indicator
lamp in the ¬ button lights
up.
The climate control system switches to the
following functions:
R cooling with air dehumidification on
R high airflow (depending on the outside
temperature)
R high temperature (depending on the
outside temperature)
R air distribution to the windshield and
front side windows
R air-recirculation mode off
X To switch off: press the ¬ button.
The indicator
lamp in the ¬ button 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 à button.
The indicator
lamp in the ¬ button goes
out. Airflow and air distribution are set to
automatic mode.
or
X Turn temperature control : or D
clockwise or counter-clockwise.
or
X Press the K or I button. MAX COOL maximum cooling
The MAX COOL function is only available in
vehicles for the USA. 128
Operating the climate control systems
Climate control
MAX COOL is only operational when the
engine is running.
X
To activate: press the Ù button.
The indicator lamp in the button lights up.
X To deactivate: press the Ù button
again.
The indicator
lamp goes out. The previously
selected settings come into effect again.
When you activate MAX COOL, climate
control switches to the following functions:
R maximum cooling
R maximum airflow
R air-recirculation mode on Defrosting the windows
Windows fogged up on the inside X
Activate the ¿ cooling with air
dehumidification function.
X Activate automatic mode Ã.
X If the windows continue to fog up, activate
the defrosting function (Y
page 128).
i You should only select this setting until
the windshield is clear again.
Windows fogged up on the outside X
Activate the windshield wipers.
X Press the _ button repeatedly until the
P or O symbol appears in the
display.
i You should only select this setting until
the windshield is clear again. Rear window defroster
Activating/deactivating G
WARNING
Clear all windows of ice or snow before setting
off. Otherwise, impaired visibility could
endanger 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. It otherwise
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 ¤ button.
The indicator
lamp in the ¤ button lights
up or goes out.
Problems with the rear window
defroster The rear window defroster has deactivated
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. Operating the climate control systems
129
Climate control Z
Activating/deactivating air-
recirculation mode
G
WARNING
At low outside temperatures, only switch over
to air-recirculation mode for brief periods.
Otherwise, the windows could fog up, thus
impairing visibility and endangering yourself
and others. This may prevent you from
observing the traffic conditions and thereby
cause an accident. X
Turn the SmartKey to position 2 in the
ignition lock.
X To activate: press the g button.
The indicator
lamp in the g button lights
up.
i Air-recirculation mode is automatically
activated at high levels of pollution or at
high outside temperatures. When air-
recirculation mode is activated
automatically, the indicator lamp in the
g button is not lit.
Outside air
is added after about 30minutes.
X To switch off: press the g button.
The indicator
lamp in the g button goes
out. i
Air-recirculation mode deactivates
automatically:
R after approximately five minutes at
outside temperatures below
approximately 41 ‡ (5 †)
R after approximately five minutes if
cooling with air dehumidification is
deactivated
R after approximately
30 minutes at
outside temperatures above
approximately 41 ‡ (5 †) Activating/deactivating the residual
heat function
The residual
heat function is only available on
vehicles for Canada. 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.
X Turn the SmartKey to position 0 in the
ignition lock or remove it.
X To activate: press the Ì button.
The indicator
lamp in the Ì button lights
up.
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 130
Operating the climate control systems
Climate control