Page 205 of 474

203 Controls in detail
Automatic climate control
Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.
Press± again (
page 194).
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 position1 or 0, or remove it from the
starter switch.
Press buttonT (
page 194).
The indicator lamp on buttonT
comes on.Deactivating
Press buttonT (
page 194).
The indicator lamp on buttonT
goes out.
The residual heat is automatically turned
off:
when the ignition is switched on
after about 30 minutes
if the battery voltage drops
!If the± button on the automatic cli-
mate control panel starts to flash, this
indicates that the air conditioning is
losing refrigerant. The compressor has
turned itself off. The air conditioning
cannot be turned on again.
Have the air conditioning checked at
the nearest authorized Mercedes-Benz
Center.
iHow long the system will provide heat-
ing depends on the coolant tempera-
ture and the temperature set by the
operator. The blower will run at speed
setting 1 regardless of the air distribu-
tion control setting.
Page 210 of 474

208 Controls in detailPower windows
Switch on ignition (
page 34).
Opening the windows
Press switch1 to 4 at the
symbolk to the resistance point.
The corresponding window will move
downwards until you release the
switch.Closing the windows
Press switch1 to 4 at the
symbolj to the resistance point.
The corresponding window will move
upwards until you release the switch.
Fully opening the windows
(Express-open)
Press switch1 to 4 at the
symbolk past the resistance point
and release.
The corresponding window opens com-
pletely.Fully closing the windows
(Express-close)
Press switch1 to 4 at the
symbolj past the resistance point
and release.
The corresponding window closes com-
pletely.
iOperating the windows from the rear is
not possible if you activate the override
switch (
page 78).
iWith the SmartKey in starter switch po-
sition 0 or removed from the starter
switch, the power windows can be op-
erated:
until you open the driver’s or front
passenger door
for at least five minutes.
Warning
G
If you press and hold the switch up when
closing the window, and upward movement
of the window is blocked by some obstruc-
tion including but not limited to arms, hands,
fingers, etc., the automatic reversal will not
operate.
Warning!
G
Driver's door only:
If within five seconds you again press the
switch past the resistance point and re-
lease, the automatic reversal will not func-
tion.
Page 211 of 474

209 Controls in detail
Power windows
Stopping windows during Express-op-
eration
Briefly press the respective power win-
dow switch again.
Synchronizing the power windows
The power windows must be synchronized
after the battery has been disconnect-
ed
if the power windows cannot be fully
opened (Express-open) or closed
(Express-close)
Each power window must be synchronized.
Close all doors.
Switch on ignition (
page 34).
Press and hold switch1 to 4 at the
symbolj until the windows are
completely closed.
Hold on to switches1 to 4 for ap-
proximately one second.
The power windows are synchronized.
Summer opening feature
If the weather is warm, you can ventilate
the vehicle before driving off by simulta-
neously:
opening the side windows
opening the tilt/sliding sunroof
turning on the seat ventilation* for the
driver’s seat
!If the upward movement of the window
is blocked during the closing proce-
dure, the window will stop and open
slightly.Remove the obstruction, press
the respective power window switch at
the symbolj again past the resis-
tance point and release.If the window
still does not close when there is no ob-
struction, press and hold the respec-
tive power window switch at the
symbolj. The side window will
then close without the obstruction sen-
sor function.
iThe seat ventilation* for the driver’s
seat is automatically set to the highest
level if activated via summer opening
feature.
Page 214 of 474

212 Controls in detailPower tilt/sliding sunroof
Switch on ignition (
page 34).
Opening and closing the power
tilt/sliding sunroof
To open, close, raise or lower the
tilt/sliding sunroof, move the switch to
resistance point in the required
direction1to4.
Release the sunroof switch when the
tilt/sliding sunroof has reached the de-
sired position.
Fully opening (Express-open) and clos-
ing (Express-close) the power the
tilt/sliding sunroof
To open, close, raise or lower the
tilt/sliding sunroof, move the switch
past the resistance point in the re-
quired direction1to4 and release.
The tilt/sliding sunroof opens or closes
completely.
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 vehi-
cle equipment can cause an accident
and/or serious personal injury.!To avoid damaging the seals, do not
transport any objects with sharp edges
which can stick out of the tilt/sliding
sunroof.
Do not open the tilt/sliding sunroof if
there is snow or ice on the roof, as this
could result in malfunctions.
The tilt/sliding sunroof can be opened
or closed manually should an electrical
malfunction occur (
page 386).
iYou can also open or close the tilt/slid-
ing sunroof using the SmartKey, see
“Summer opening feature”
(page 209) and “Convenience clos-
ing feature” (
page 210).
You can close and reopen the tilt/slid-
ing sunroof using the air recirculation
button, or the charcoal filter
buttone in the climate control pan-
el (
page 194).
iWith the SmartKey in starter switch po-
sition 0 or removed from the starter
switch, the tilt/sliding sunroof can be
operated
until you open the driver’s or pas-
senger door
for up to approximately five min-
utes.
Page 215 of 474

213 Controls in detail
Power tilt/sliding sunroof
Stopping the power tilt/sliding sunroof
during Express-operation
Move the switch in any direction.
Synchronizing the power tilt/sliding
sunroof
The tilt/sliding sunroof must be synchro-
nized
after the battery has been
disconnected or discharged
after the tilt/sliding sunroof has been
closed manually (
page 386)
the tilt/sliding sunroof does not open
smoothly
after a malfunction
Switch on ignition (
page 34).
Press and hold the sunroof switch in di-
rection of arrow1 until the tilt/sliding
sunroof is fully raised at the rear.
Keep holding the sunroof switch in the
direction of arrow1 for approximately
one second.
Check the Express-open feature
(page 212).
If the tilt/sliding sunroof opens com-
pletely, the sunroof is synchronized.
Otherwise repeat the above steps.
iThe selecting a tilt/sliding sunroof
opening position feature is activated
for Canada vehicles, but deactivated
for U.S. vehicles at the factory. If you
wish to have it activated, contact an au-
thorized Mercedes-Benz Center.
To select a tilt/sliding sunroof opening
position, press the sunroof switch to
the resistance point and release it
when the tilt/sliding sunroof has
reached the desired position. The
tilt/sliding sunroof now opens to the
position set when the sunroof switch is
pressed past the resistance point in the
“open” direction.
iIf the movement of the tilt/sliding sun-
roof is blocked during the closing pro-
cedure, the sunroof will stop and
reopen slightly.
Page 237 of 474

235 Controls in detail
Driving systems
Parktronic system* (Parking assist)
The Parktronic system is an electronic aid
designed to assist the driver during park-
ing maneuvers. It visually and audibly indi-
cates the relative distance between the
vehicle and an obstacle.
The Parktronic system is automatically ac-
tivated when you switch on the ignition
and placed the gear selector lever in posi-
tion D, R, or N.
The Parktronic system deactivates at
speeds over approximately 11 mph
(18 km/h). At lower speeds the Parktronic
system turns on again.
The Parktronic system also deactivates
when you place the gear selector lever in
position P.The Parktronic system monitors the sur-
roundings of your vehicle with six sensors
in the front bumper and four sensors in the
rear bumper.
1Sensors in the front bumperWarning!
G
Parktronic is a supplemental system. It is
not intended to, nor does it replace, the
need for extreme care. The responsibility
during parking and other critical maneuvers
always rests with the driver.
Special attention must be paid to objects
with smooth surfaces or low silhouettes
(e.g. trailer couplings, painted posts, or road
curbs). Such objects may not be detected by
the system and can damage the vehicle.
The operational function of the Parktronic
system can be affected by dirty sensors, es-
pecially at times of snow and ice, see
“Cleaning the Parktronic* system sensors”
(page 333).
Interference caused by other ultrasonic sig-
nals (e.g. working jackhammers, car wash,
or the air brakes of trucks) can cause the
system to send erratic indications, and
should be taken into consideration.
Warning!
G
Make sure no persons or animals are in the
area in which you are maneuvering. You
could otherwise injure them.
Page 240 of 474

238 Controls in detailDriving systemsAs your vehicle approaches an object, one
or more distance segments will illuminate,
depending on the distance. When the
eighth distance segment illuminates, you
have reached the minimum distance.
Front area: An intermittent acoustic
warning will sound as the first red dis-
tance segment illuminates and a con-
stant acoustic warning lasting a
maximum of two seconds will sound for
the second red distance segment. The
signal is canceled when the gear selec-
tor lever is placed in position P.
Rear area: An intermittent acoustic
warning will sound as the first red dis-
tance segment illuminates and a con-
stant acoustic warning lasting a
maximum of two seconds will sound for
the second red distance segment. The
signal is canceled when the gear selec-
tor lever is placed in position D orP.Switching the Parktronic system
on/off
The Parktronic system can be switched off
manually.
The Parktronic button is located in the up-
per part of the front center console.
1Indicator lamp
2Parktronic buttonSwitching off the Parktronic system
Press button 2.
Indicator lamp 1 comes on.
Switching on the Parktronic system
Press button 2 again.
Indicator lamp 1 goes out.iThe Parktronic system is automatically
switched on when the ignition is
switched on (
page 34).
Page 241 of 474
239 Controls in detail
Driving systems
Parktronic system malfunction
If only the red distance segments illumi-
nate and an acoustic warning sounds,
there is a malfunction in the Parktronic
system. The Parktronic system will auto-
matically switch off after 20 seconds and
the indicator lamp in the Parktronic switch
comes on.
Have the Parktronic system checked
by an authorized Mercedes-Benz Cen-
ter as soon as possible.If only the red distance segments illumi-
nate and no acoustic warning sounds, the
Parktronic system sensors are dirty or
there is an interference from other radio or
ultrasonic signals. The Parktronic system
will automatically switch off after 20 sec-
onds and the indicator lamp in the Park-
tronic switch comes on.
Switch off ignition (
page 34).
Clean Parktronic system sensors
(page 333).
Switch on ignition.
or
Check Parktronic system operation at
another location to rule out interfer-
ence from outside radio or ultrasonic
signals.