Page 178 of 399

178 Controls in detailAutomatic climate control*This provides the fastest possible cooling
of the vehicle interior (when windows and
sliding/pop-up roof are closed).Defrosting
Activating
Press buttonP.
The indicator lamp on the button
comes on.
Switch off air recirculation, if selected.
Press buttonO.
The indicator lamp on the button goes
out.
Close center air outlets.
Adjust side air outlets 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.
iThese settings should only be selected
for a short time.
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.
iIf you keep buttonO pressed, the
side windows and the sliding/pop-up
roof* will be closed.
The air recirculation mode is activated
automatically:
at high outside temperatures
if the concentration of carbon mon-
oxide and nitrogen oxide in the out-
side air increases, for example in a
tunnel (charcoal filter activated
(page 180))
If you have turned off the air condition-
er (
page 170) or the outside
temperature is below 41°F (5°C), the
air recirculation mode will not switch
on automatically.
Page 179 of 399

179 Controls in detail
Automatic 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 conditioner
is turned off (AC
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.
Warning!
G
Never operate the windows or slid-
ing/pop-up roof* if there is the possibility of
anyone being harmed by the opening or
closing procedure.
In case the procedure causes potential dan-
ger, the procedure can be immediately halt-
ed by releasing the control button. To
reverse direction of movement press
button
Œ
for opening or
‹
for clos-
ing.
iIf you keep buttonO pressed, the
side windows and the sliding/pop-up
roof* will be returned to their previous
position.
Page 180 of 399

180 Controls in detailAutomatic climate control*Charcoal filter
An activated charcoal filter markedly re-
duces bad odors and removes pollutants
from air entering the passenger compart-
ment.
Activating
Press buttone.
The indicator lamp on the button lights
up.
The system switches automatically to the
air recirculation mode if the carbon
monoxide (CO) or nitrogen oxide (NO
X)
concentration of the outside air increases
beyond a predetermined level.Deactivating
Press buttone.
The indicator lamp on the button goes
out.
The automatic air recirculation mode does
not function if economy mode AC
OFF
is se-
lected or if the outside temperature has
fallen below 41
°F(5
°C).
The activated charcoal filter should be
switched off when windows fog up on the
inside, or if the passenger compartment
needs to be quickly heated or cooled
down.
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 buttonF.
The indicator lamp on the button
comes on.
Deactivating
Press buttonF again.
The indicator lamp on the button goes
out.
iIf you keep buttone pressed, the
side windows and the sliding/pop-up
roof* will be closed.
iIf you keep buttone pressed, the
side windows and the sliding/pop-up
roof* will be returned to their previous
position.
Page 181 of 399

181 Controls in detail
Automatic climate control*
Air conditioner
The air conditioner 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 automatic
climate control system. The air in the vehi-
cle will then no longer be cooled or dehu-
midified.
Press buttonAC
OFF
.
The indicator lamp on the
buttonAC
OFF
lights up.Activating
Moist air can fog up the windows. You can
dehumidify the air with the air conditioner.
PressAC
OFF
again.
The indicator lamp on
theAC
OFF
button goes out.
The air conditioner uses the refrigerant
R134a. This refrigerant is free of CFCs
which are harmful to the ozone layer.
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 blinking, 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.
iCondensation may drip out from under-
neath the vehicle. This is normal and
not an indication of a malfunction.
!If the air conditioner cannot be turned
on again, this indicates that the air con-
ditioner is losing refrigerant. The com-
pressor has turned itself off.
Have the air conditioner checked at the
nearest authorized Mercedes-Benz
Center.
Page 184 of 399

184 Controls in detailPower windows
Power windowsOpening and closing the windows
The side windows can be 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 and the rear
doors.
1Rear window override switch
(
page 71)
2Right front window
3Right rear window
4Left rear window
5Left front window
Turn key in the starter switch to
position1 or2.
Opening the windows
Press switch to resistance point.
The window will move downwards until
you release the switch.
Closing the windows
Pull on switch.
The window will move upwards until
you release the switch.
Fully opening windows
Press switch past resistance point and
release.
The window opens completely.
Warning!
G
When closing the windows, be sure that
there is no danger of anyone being harmed
by the closing procedure.
In case of obstruction, the automatic rever-
sal will not operate if a door window is being
closed by pulling the switch and holding it,
or when using the SmartKey.
The closing procedure of door windows can
be immediately reversed by either pressing
or pulling the switch, or pressing
button
Œ
on the SmartKey and holding
it.
When leaving the vehicle, always remove the
key from starter switch, take it with you, and
lock your vehicle. Do not leave children un-
attended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment can cause serious personal
injury.
Page 185 of 399

185 Controls in detail
Power windows
Fully closing windows
Pull switch past resistance point and
release.
The window closes completely.
If the upward movement of the window is
blocked during the closing procedure, the
window will stop and open slightly.Stopping windows
Press or pull respective switch again.Opening and closing the windows with
the Smartkey
The sliding/pop-up roof* will also be
opened or closed when the power windows
are operated with the key (
page 188).
Aim transmitter eye at the front door
handle.
Warning!
G
Driver’s door only:
If within five seconds switch1 is again
pulled past the resistance point and re-
leased, the automatic reversal will not oper-
ate.
iYou can also open or close the win-
dows using the following:
SmartKey (summer opening/con-
venience feature), see below
ButtonO in the control panel of
the climate control (
page 164) or
automatic climate control
(
page 174)
Buttonein the control panel of
the automatic climate control
(page 174)
Warning!
G
Never operate the windows or slid-
ing/pop-up roof* if there is the possibility of
anyone being harmed by the opening or
closing procedure.
In case the procedure causes potential dan-
ger, the procedure can be immediately halt-
ed by releasing the control button. To
reverse direction of movement press
button
Œ
for opening or
‹
for clos-
ing.
Page 186 of 399
186 Controls in detailPower windowsOpening (Summer opening feature)
Press and hold button Œafter un-
locking the vehicle.
The windows and sliding/pop-up roof*
begin to open after approximately one
second.
Release transmit button to interrupt
procedure.Closing (Convenience feature)
Press and hold button ‹after lock-
ing the vehicle.
The windows and sliding/pop-up roof*
begin to close after approximately one
second.
Release transmit button to interrupt
procedure.
Ensure that all side windows and the slid-
ing/pop-up roof* are properly closed be-
fore leaving the vehicle.
Synchronizing power windows
The power windows must be resynchro-
nized each time after the battery has been
disconnected.
Pull the power window switches until
the side windows are closed and hold
the switches for approximately one
second.
Page 188 of 399

188 Controls in detailSliding/pop-up roof*Stopping the sliding/pop-up roof
Move the switch in any direction.
If the movement of the sliding/pop-up
roof is blocked during the closing pro-
cedure, the roof will stop and reopen
slightly.Opening and closing the sliding/pop-up
roof with the SmartKey
The power windows will also be opened or
closed when the sliding/pop-up roof is op-
erated with the key (
page 185).
Aim transmitter eye at the front door
handle.
iYou can also open or close the slid-
ing/pop-up roof using the following:
SmartKey, see below
ButtonO in the control panel of
the climate control (
page 164) or
automatic climate control
(
page 174)
Buttonein the control panel of
the automatic climate control
(page 174)
!To avoid damaging the seals, do not
transport any objects with sharp edges
which can stick out of the slid-
ing/pop-up roof.
Open the sliding/pop-up roof only if
the roof is clear of snow or ice.
The sliding/pop-up roof can be opened
or closed manually should an electrical
malfunction occur (
page 331).
Warning!
G
Never operate the windows or slid-
ing/pop-up roof if there is the possibility of
anyone being harmed by the opening or
closing procedure.
In case the procedure causes potential dan-
ger, the procedure can be immediately halt-
ed by releasing the remote control button.
To reverse direction of movement
pressŒ for opening or ‹ for closing.