Page 170 of 442

170 Controls in detailGood visibility
Headlamp cleaning system*
The button is located on the left side of the
dashboard.
1Headlamp washer button
Switch on ignition.
Press button1.
The headlamps are cleaned with a
high-pressure water jet.
Information on filling up the washer reser-
voir can be found in the “Operation” sec-
tion (page 288).
Sun visors
The sun visors protect you from sun glare
while driving.
Swing sun visors down when you expe-
rience glare.
!Do not leave windshield wipers in inter-
mittent setting when the vehicle is tak-
en to an automatic car wash or during
windshield cleaning. Wipers will oper-
ate in the presence of water sprayed on
the windshield, and wipers may be
damaged as a result.
The switch should not be left in inter-
mittent setting as the wipers will wipe
the windshield once every time the en-
gine is started. Dust that accumulates
on the windshield might scratch the
glass and / or damage the wiper blades
when wiping occurs on a dry wind-
shield.
Warning!
G
Do not use the vanity mirror while driving.
Keep the mirrors in the sun visors closed
while vehicle is in motion. Reflected glare
can endanger you and others.
Page 172 of 442

172 Controls in detailGood visibilityRear window sunshade*
The switch is located in the center console.
Turn the SmartKey to starter switch po-
sition 1 or 2. Vehicles with KEY-
LESS-GO*: press the start / stop
button once or twice.
Press the switch briefly at 1 to raise
the sunshade.
Press the switch briefly at 1 to lower
the sunshade.
Always raise the sunshade fully for its sup-
port against the window frame.
Roller sunblind* in the rear doors
Pull the roller sunblind out using the
hooks.
Attach the hooks at the top.
iIf sunlight enters through a side win-
dow, disengage sun visor from
mounting1 and pivot to the side.
Mirror lamp3 will switch off.
Warning!
G
When operating the rear window sunshade,
be sure that there is no danger of anyone be-
ing harmed by the raising or lowering proce-
dure.
The raising or lowering procedure can be im-
mediately halted by briefly pressing
switch1. To reverse direction of move-
ment, press switch1 again.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from starter switch, and lock your
vehicle. Do not leave children unattended in
the vehicle, or with access to an unlocked
vehicle. Unsupervised use of vehicle equip-
ment can cause an accident and / or serious
personal injury.
Page 173 of 442

173 Controls in detail
Good visibility
Rear window defroster
The rear window defroster uses a large
amount of power. To keep the battery
drain to a minimum, switch off the defrost-
er as soon as the rear window is clear. The
defroster is automatically deactivated af-
ter approximately 6 to 17 minutes of oper-
ation depending on the outside
temperature.
Activating
Press buttonFon the climate con-
trol panel (
page 173) or the automat-
ic climate control panel (
page 176).
The indicator lamp on the button
comes on.Deactivating
Press buttonF again.
The indicator lamp on the button goes
out.
!Always guide the sunblind by hand. Do
not let it snap back, as the retractor
could be damaged.
Warning!
G
Any accumulation of snow and ice should be
removed from the rear window before driv-
ing. Visibility could otherwise be impaired,
endangering you and others.!If the rear window defroster switches
off too soon and the indicator lamp
starts flashing, this means that too
many electrical consumers are operat-
ing simultaneously and there is insuffi-
cient voltage in the battery. The system
responds automatically by deactivating
the rear window defroster.
As soon as the battery has sufficient
voltage, the rear window defroster au-
tomatically turns itself back on.
Page 178 of 442

178 Controls in detailClimate controlSetting the temperature
Use temperature controls1 and6 to
separately adjust the air temperature on
each side of the passenger compartment.
You should raise or lower the temperature
setting in small increments, preferably
starting at 72°F (22°C).
Increasing
Turn the temperature control1 or6
slightly to the right.
The climate control system will corre-
spondingly adjust the interior air tem-
perature.Decreasing
Turn the temperature control1 or6
slightly to the left.
The climate control system will corre-
spondingly adjust the interior air tem-
perature.
Adjusting air distribution
Adjusting manually
Use air distribution control4
(page 176) to adjust the air distribution.
Press the Ubutton.
The indicator lamp on the Ubutton
goes out.
Press air distribution rocker switch4
(page 176) until the display shows
the desired setting.
The current air distribution appears in
the air distribution display9.
Adjusting automatically
Press the Ubutton.
The indicator lamp on the button
comes on. The air distribution and vol-
ume is adjusted automatically.
Symbol
Function
a
Directs air through the center,
side and rear passenger com-
partment air vents
Z
Directs air to the windows
X
Directs air into the entire
vehicle interior
Y
Directs air to the footwells
Page 179 of 442

179 Controls in detail
Climate control
Adjusting center air vents:
The thumbwheels for left2 and right6
center air vents are automatically posi-
tioned for optimum interior airflow. In this
position, center air vent4 and adjustable
left and right center vents3 and5 are
fully opened.
Heating:
Only in manual mode is it possible to lower
the temperature in the headroom by regu-
lating the cold-airflow using
thumbwheel7 (
page 174).Windshield fogged on the outside
Switch the windshield wipers on
(page 48).
Press the Ubutton.
The indicator lamp on the button
comes on.
Adjusting air volume
Adjusting manually
Five blower speeds are available.
Press to decrease orQ to in-
crease air volume to the desired level.
The
Auto
display disappears and the
automatic mode is switched off. The
selected blower speed is shown in the
display.Adjusting automatically
Press the U button.
The air volume is adjusted automatical-
ly.
Defrosting
Activating
Press buttonP.
The indicator lamp on the button
comes on.
or
Switch off air recirculation, if selected.
Press buttonO.
The indicator lamp on the button goes
out.iThese settings should only be selected
for a short time.
Page 180 of 442
180 Controls in detailClimate control
Close center air vents.
Open left and right side air vents and
adjust side air vents upwards.
Deactivating
Press buttonP.
The indicator lamp on the button goes
out. Defrosting is turned off.
Air recirculation mode
Switch to air recirculation mode to prevent
unpleasant odors from entering the vehicle
from the outside. This setting cuts off the
intake of outside air and recirculates the
air in the passenger compartment.Activating
Press buttonO.
The indicator lamp on the button
comes on.
Warning!
G
When the outside temperature is below
41°F (5°C), only switch to air recirculation
mode for short periods to prevent window
fogging.
iThe air recirculation mode is activated
automatically at high outside tempera-
tures.
If you have turned off the air condition-
ing (
page 182) or the outside
temperature is below 41°F (5°C), the
air recirculation mode will not switch
on automatically.
Page 181 of 442

181 Controls in detail
Climate control
Deactivating
Press buttonO.
The indicator lamp on the button goes
out.
The air recirculation mode is deactivated
automatically:
after five minutes if the outside temper-
ature is below approximately 41°F
(5°C)
after five minutes if the air conditioning
is turned off
after 30 minutes if the outside temper-
ature is above approximately 41°F
(5°C)At outside temperatures above 79°F
(26°C), the system will not automatically
switch back to outside air. A quantity of
outside air is added after approximately
30 minutes.
Deactivating the climate control sys-
tem
Deactivating
Press button M (
page 176).
Reactivating
Press button M again(
page 176).
or
Press any button on the climate control
panel (
page 176).
Warning!
G
Never operate the windows and
sliding / pop-up roof* or panorama
sliding / pop-up roof* if there is the possibil-
ity of anyone being harmed by the opening
or closing procedure.
In case the procedure causes potential dan-
ger:
Vehicles with sliding/pop-up roof: The pro-
cedure for the windows can be immediately
halted by pressing or pulling the respective
window switch. The procedure for the slid-
ing/pop-up roof can be immediately halted
by moving the switch for the sliding/pop-up
roof in any direction.
The closing of the side windows and the slid-
ing/pop-up roof can be reversed by again
pressing and holding theO button.
Vehicles with panorama sliding/pop-up
roof: The procedure for the windows and
panorama sliding/pop-up roof can be imme-
diately halted by releasing theO button.
iIf you keep buttonO pressed, the
side windows and sliding / pop-up
roof* or panorama sliding / pop-up
roof* will return to their previous posi-
tion.
Page 182 of 442

182 Controls in detailClimate controlAir conditioning
The air conditioning is operational while
the engine is running and cools the interior
air to the temperature set by the operator.
Deactivating
It is possible to deactivate the air condi-
tioning (cooling) function of the climate
control system. The air in the vehicle will
then no longer be cooled or dehumidified.
Press button± (
page 176).
The indicator lamp on the button±
comes on.Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.
Press± again (
page 176).
The indicator lamp on the button±
goes out.
The air conditioning uses the refrigerant
R134a. This refrigerant is free of CFCs
which are harmful to the ozone layer.
Residual heat and ventilation*
With the engine switched off, it is possible
to continue to heat or ventilate the interior
for up to 30 minutes. This feature makes
use of the residual heat produced by the
engine.
Activating
Turn the SmartKey in the starter switch
to position0or1, or remove it from
the starter switch.
Press buttonT (
page 176).
The indicator lamp on buttonT
comes on.
iCondensation may drip out from under-
neath the vehicle. This is normal and
not an indication of a malfunction.
!If the air conditioning cannot be turned
on again, this indicates that the air con-
ditioning is losing refrigerant. The com-
pressor has turned itself off.
Have the air conditioning checked at
the nearest authorized Mercedes-Benz
Center.