Page 209 of 498

208 Controls in detail4-zone automatic climate controlDeactivating
Press button, (
page 198) or
(
page 199) again.
The indicator lamp on the button goes
out.Combination filter with
pollutant-sensitive air-recirculation
mode
The combination filter reduces pollutants
and unpleasant odors in the outside air.
The pollutant-sensitive air-recirculation
mode automatically switches off the
supply of outside air when pollutants are
detected in the air.
iThe air recirculation mode is deactivat-
ed automatically:
after 5 minutes if the outside tem-
perature is below
approximately 41°F (5°C)
after 5 minutes if the air condition-
ing is turned off
after 30 minutes if the outside tem-
perature is above approximately
41°F (5°C)
iPress and hold button, for approx-
imately 2 seconds. The side windows
and or tilt/sliding sunroof* will return
to their previous position. You can re-
lease button, once the opening
procedure has begun. The windows
and tilt/sliding sunroof* or tilt/sliding
panel* continue opening until they
have reached their previous position.
A window or tilt/sliding sunroof* will
only return to its previous position if it
has not been moved to another posi-
tion using the respective window
switch or tilt/sliding sunroof* switch
after it was closed with button,.
A window or tilt/sliding sunroof* that
has been moved will remain in its cur-
rent position if button, is used to
re-open the remaining windows or
tilt/sliding sunroof*.
iThe pollutant-sensitive air-recirculation
mode is not possible if you have
switched off the air conditioning or if
the temperature falls below 41°F
(5°C).
Page 210 of 498

209 Controls in detail
4-zone automatic climate control
Air conditioning
The cooling function, only operational
when the engine is running, cools the vehi-
cle interior down to the selected tempera-
ture. The cooling function also
dehumidifies the air in the vehicle interior,
thus preventing the windows from fogging
up.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 button2 (
page 198) or
(
page 199).
The indicator lamp on the button goes
out. The cooling function switches off
after a short delay.
Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.
Press button2 (
page 198) or
(
page 199) again.
The indicator lamp on the button
comes on.
The air conditioning uses the refrigerant
R134a. This refrigerant is free of CFCs
which are harmful to the ozone layer.Residual heat and ventilation
(Canada only)
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.
iCondensation may drip out from under-
neath the vehicle. This is normal and
not an indication of a malfunction.Warning!
G
If you turn 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.
!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.iIf you switch on the residual heat
function when temperatures are high,
only the ventilation will be switched on.
Page 211 of 498
210 Controls in detail4-zone automatic climate controlActivating
Switch off the ignition.
Press buttonT (
page 198).
REST in the display4 (page 198)
comes on.Deactivating
Press buttonT (
page 198) again.
REST in the display4 (page 198)
goes out.
Rear air conditioning
The rear climate control is adjusted via the
front climate control panel (
page 198) or
(
page 199) or the rear climate control
panel.
The rear climate control panel is located in
the rear center console.
iRegardless of the selected air volume,
the blower operates at low speed.iHow long the system will provide heat-
ing depends on
the coolant temperature
the temperature set by the operator
The blower will run at speed setting1
regardless of the air distribution
control setting.
iThe residual heat is automatically
turned off:
when the ignition is switched on
after about 30 minutes
if the battery voltage drops
if the coolant temperature is too
low
Page 212 of 498

211 Controls in detail
4-zone automatic climate control
Setting the temperature
Use temperature control rocker
switches4 and6 to separately adjust
the air temperature on each side of the
rear passenger compartment.
You should raise or lower the temperature
setting in small increments, preferably
starting at 72°F (22°C). The adjusted tem-
perature appears in the display 5. The
rear climate control will adjust to the set
temperature as fast as possible.
Display1Temperature, left
2Temperature, right
Adjust the temperature to the desired
setting for each side of the passenger
compartment using the left and right
temperature buttons.
The temperature in the rear passenger
compartment is adjusted automatical-
ly.
1
Left rear center air vent, adjustable
2
Right rear center air vent, adjustable
3
Thumbwheel for air volume control
for right rear center air vent
4
Temperature rocker switch, right
5
Display
6
Temperature rocker switch, left
7
Thumbwheel for air volume control
for left rear center air vent
iYou can also adjust the rear tempera-
ture using the front climate control
panel (
page 198) or (
page 199).
iThe rear climate control will not cool
the air when the air conditioning is
switched off (
page 209).
Page 213 of 498

212 Controls in detail4-zone automatic climate controlAdjusting air distribution
Push the slide for the left center
vent1 or right center vent2 to the
left, right, up, or down.
The air flow is directed in the
corresponding direction.
Adjusting air volume
Turn thumbwheel3 or 7
(page 210) up or down.
The air volume is increased or
decreased.Adjusting the rear settings with the
front control panel
You can adjust the temperature for the
rear climate control from the front climate
control panel.
Press button™ or 5
(page 198) or (
page 199).
The display switches over.
1Rear climate control display
Set the desired temperature for the
rear passenger compartment using
temperature rocker switches4
and6 (
page 210).
After approximately 5 seconds after
the last adjustment, the display switch-
es back to its standard display.
iFor draft-free ventilation, push
slides1 and 2 (
page 210) upward.
iYou can also press button™ or
5 (
page 198) or (
page 199)
once more to switch back to the stan-
dard display.
Page 214 of 498
213 Controls in detail
4-zone automatic climate control
Front center console storage compart-ment ventilation
The front center console storage compart-
ment under the armrest has its own air
vent. The air temperature is about the
same as that of the dashboard air vents.
The lever is located in the front center
vent.
1Lever
To open air vent slide the lever1 up.
To close air vent slide the lever1
down.iThe compartment can get very warm
due to its confined space. When storing
heat sensitive objects (e.g. groceries)
in the compartment, close the air vent
while heating the passenger compart-
ment.
Page 215 of 498

214 Controls in detailPower windowsOpening and closing the windows
The side windows are opened and closed
electrically. The switches for all of the side
windows are on the driver’s door. The
switches for the respective windows are
on the front passenger door and the rear
doors.
1Rear window override switch
(
page 82)
2Right front window
3Right rear window
4Left rear window
5Left front window
Warning!
G
When closing the windows, make sure that
there is no danger of anyone being harmed
by the closing procedure.
The closing of the door windows can be
immediately halted by releasing the switch
or, if switch was pulled past the resistance
point and released, by either pressing or
pulling the respective switch.
The door windows are equipped with the
express-close and automatic reversal func-
tion. If the window encounters an obstruc-
tion that blocks its path in a circumstance
where you pulled the switch past the resis-
tance point and released it to close the win-
dow, the automatic reversal function will
stop the window and open it slightly.
If the window encounters an obstruction
that blocks its path in a circumstance where
you are closing the window by pulling and
holding the switch, by pressing and holding
button‹ on the SmartKey, by pressing
and holding the lock button (vehicles with
KEYLESS-GO*) on an outside door handle,
the automatic reversal function will not op-
erate.
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of
vehicle equipment can cause an accident
and/or serious personal injury.
Page 216 of 498

215 Controls in detail
Power windows
Switch on the ignition (
page 36).
Opening the windows
Press switch2 to 5 to the resistance
point.
The corresponding window will move
downwards until you release the
switch.Closing the windows
Pull switch2 to 5 to the resistance
point.
The corresponding window will move
upwards until you release the switch.
iYou can also open or close the win-
dows using the SmartKey, see “Sum-
mer opening feature” (
page 217) and
“Convenience closing feature”
(
page 217).
Depending on current position, the win-
dows may also open or close when the
air recirculation button, in the au-
tomatic climate control (
page 198)
or (
page 199) is pressed and held.
iOperating the windows from the rear is
not possible if you activate the override
switch (
page 82).
iWith the SmartKey in starter switch
position0 or removed from the starter
switch, the power windows can be
operated:
until you open the driver’s or front
passenger’s door
for at least 5 minutes.
Warning!
G
If you pull and hold the switch up when clos-
ing the window, and upward movement of
the window is blocked by some obstruction
including but not limited to arms, hands, fin-
gers, etc., the automatic reversal will not op-
erate.