Page 168 of 416

168 Controls in detailClimate controlDefrosting
Activating
Press button P.
The indicator lamp in the button illumi-
nates.
The climate control automatically
switches to the following functions:
maximum blower and heat output
air distribution to the windshield
and the side windows
rear ventilation is turned off
Deactivating
Press the P button.
The indicator lamp in the button goes
out. Defrosting is turned off.
Air recirculation
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 button O briefly.
The indicator lamp in the button illumi-
nates.Deactivating
Press button O briefly.
The indicator lamp in the button goes
out.
The air recirculation mode is deactivated
automatically:
after 30 minutes if the outside temper-
ature is above about 41°F (5°C)
after 5 minutes if the outside tempera-
ture is below about 41°F (5°C)
after 5 minutes if economy mode
AC
OFF
is selected
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-
er or the outside temperature is below
41°F (5°C), the air recirculation mode
will not switch on automatically.
Page 171 of 416

171 Controls in detail
Power windows
Power windows
Opening and closing the windows
The side windows are opened and closed
electrically. Switches for operating all the
side windows are located on the driver’s
door. The switches for the respective win-
dows are located on the front passenger
and the rear doors.
1Switch for rear door window override
(
page 78)
2Left front window
3Right front window
4Right rear window
5Left rear window
Turn SmartKey in the starter switch to
position1 or2.Opening the windows
Press switch 2 to 5 to the resistance
point.
The corresponding window will move
downwards until you release the
switch.
Closing the windows
Pull on switch 2 to 5.
The corresponding window will move
upwards until you release the switch.
Fully opening windows (Express-open)
Press switch 2 to 5 past the
resistance point and release.
The corresponding window opens
completely.
Stopping windows
Press or pull respective switch again.
Warning!
G
When closing the windows, make sure there
is no danger of anyone being harmed by the
closing procedure.
The closing procedure can be immediately
halted by releasing the switch or by releas-
ing button‹ on the SmartKey.
When leaving the vehicle, always remove the
SmartKey from starter switch, take it with
you, and lock your vehicle. Do not leave chil-
dren unattended in the vehicle, or with ac-
cess to an unlocked vehicle. Unsupervised
use of vehicle equipment can cause an acci-
dent and/or serious personal injury.
Page 172 of 416

172 Controls in detailPower windowsOpening and closing windows with the
SmartKey
The tilt/sliding sunroof (
page 173) will
also be opened or closed when the power
windows are operated with the SmartKey.
Aim transmitter eye at the outside
driver’s door handle.
The SmartKey must be in close proxim-
ity to the door handle.
Opening (Summer opening feature)
Press and hold buttonŒ after un-
locking the vehicle.
The windows and tilt/sliding sunroof
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 tilt/sliding sunroof
begin to close after approximately one
second.
Release transmit button to interrupt
procedure.
Make sure all side windows and the
tilt/sliding sunroof are properly closed
before leaving the vehicle.
Warning!
G
Never operate the windows or tilt/sliding
sunroof if there is the possibility of anyone
being harmed by the opening or closing pro-
cedure.
In case the procedure causes potential dan-
ger, the procedure can be immediately halt-
ed by releasing the button on the SmartKey.
To reverse direction of movement,
pressŒ for opening or ‹ for closing.
Page 173 of 416

173 Controls in detail
Power tilt/sliding sunroof
Power tilt/sliding sunroof
Opening and closing the power tilt/sliding sunroof
The tilt/sliding sunroof is opened and
closed electrically. The switch for the
tilt/sliding sunroof is on the overhead con-
trol panel.Sunroof switch1Push up to raise sunroof at rear
2Pull down to lower sunroof at rear
3Push forward to slide sunroof closed
4Push back to slide sunroof open
Warning!
G
When closing the tilt/sliding sunroof, make
sure there is no danger of anyone being
harmed by the closing procedure.
The opening procedure of the tilt/sliding
sunroof can be immediately halted by re-
leasing the switch or, if the switch was
moved past the resistance point and re-
leased, by moving the switch in any direc-
tion.
The closing procedure of the tilt/sliding sun-
roof can be immediately halted by releasing
the switch.
The closing procedure can be immediately
reversed by moving the switch in
direction
1
or4
.
In a vehicle rollover, occupants not wearing
their seat belts or not wearing them properly
may be thrown out of the opening. Such an
opening also presents a potential for injury
for occupants wearing their seat belts prop-
erly as entire body parts or portions of them
may protrude from the passenger compart-
ment.
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. Unsuper-
vised use of vehicle equipment can cause an
accident and/or serious personal injury.
Page 175 of 416

175 Controls in detail
Power tilt/sliding sunroof
Opening and closing the tilt/sliding
sunroof with the SmartKey
The power windows (
page 171) will also
be opened or closed when you operate the
tilt/sliding sunroof with the SmartKey.
Aim transmitter eye at the driver’s door
handle.
The SmartKey must be in close proxim-
ity to the door handle.
Opening (Summer opening feature)
Press and hold buttonŒ after un-
locking the vehicle.
The windows and tilt/sliding sunroof
begin to open after approximately one
second.
Release transmit button to interrupt
procedure.Closing (Convenience closing feature)
Press and hold button‹ after lock-
ing the vehicle.
The windows and tilt/sliding sunroof
begin to close after approximately one
second.
Release transmit button to interrupt
procedure.
Make sure all side windows and the
tilt/sliding sunroof are properly closed be-
fore leaving the vehicle.
Warning!
G
Never operate the windows or tilt/sliding
sunroof if there is the possibility of anyone
being harmed by the opening or closing pro-
cedure.
In case the procedure causes potential dan-
ger, the procedure can be immediately halt-
ed by releasing the button on the SmartKey.
To reverse direction of movement,
pressŒ for opening or ‹ for closing.
Page 176 of 416

176 Controls in detailDriving systemsThe driving systems of your vehicle are de-
scribed on the following pages:
Cruise control, with which the vehicle
can maintain a preset speed.
Rear Parking Assist*, which assists
your parking maneuvers.
For information on the BAS, ABS, ESP,
4-ETS and EBB driving systems, see “Driv-
ing and safety systems” (
page 80).
Cruise control
Cruise control automatically maintains the
speed you set for your vehicle.
Use of cruise control is recommended for
driving at a constant speed for extended
periods of time. You can set or resume
cruise control at any speed over 20 mph
(30 km/h).
The cruise control function is operated by
means of the cruise control lever.
The cruise control lever is the uppermost
lever found on the left-hand side of the
steering column (
page 23).
iThe cruise control should not be acti-
vated during-off road driving.
Warning!
G
Cruise control is a convenience system de-
signed to assist the driver during vehicle op-
eration. The driver is and must always
remain responsible for the vehicle speed
and for safe brake operation.
Only use cruise control if the road, traffic
and weather conditions make it advisable to
travel at a steady speed.
The use of cruise control can be danger-
ous on winding roads or in heavy traffic
because conditions do not allow safe
driving at a steady speed.
The use of cruise control can be danger-
ous on slippery roads. Rapid changes in
tire traction can result in wheel spin and
loss of control.
Deactivate cruise control when driving
in fog.
The “Resume” function should only be oper-
ated if the driver is fully aware of the previ-
ously set speed and wishes to resume this
particular preset speed.
Page 178 of 416

178 Controls in detailDriving systemsSetting a higher speed
Lift cruise control lever to position1
and hold it up until the desired speed is
reached.
Release cruise control lever.
The new speed is set.
Setting a lower speed
Depress cruise control lever to
position2 and hold it down until the
desired speed is reached.
Release cruise control lever.
The new speed is set.Fine adjustment in 1 mph
(Canada: 1 km/h) increments
Faster
Briefly tip cruise control lever in
direction of arrow1.
Slower
Briefly tip cruise control lever in
direction of arrow2.Setting to last stored speed
(“Resume” function)
Briefly push cruise control lever to
position4.
Cruise control resumes the last set
speed.
Remove your foot from the accelerator
pedal.
iDepressing the accelerator pedal does
not deactivate cruise control. After
brief acceleration (e.g. for passing),
cruise control will resume the last
speed set.
iWhen you use the cruise control lever
to decelerate, the transmission will au-
tomatically downshift if the engine’s
braking power does not brake the vehi-
cle sufficiently.
Warning!
G
The speed stored in memory should only be
set again if prevailing road conditions per-
mit. Possible acceleration or deceleration
differences arising from returning to preset
speed could endanger yourself and others.
Page 179 of 416

179 Controls in detail
Driving systems
Rear Parking Assist*
The Rear Parking Assist system is an elec-
tronic aid designed to assist the driver dur-
ing parking maneuvers. It visually and
audibly indicates the relative distance be-
tween the rear of the vehicle and an obsta-
cle.
The Rear Parking Assist system is auto-
matically activated when you switch on the
ignition and shift the gear selector lever to
positionR.The Rear Parking Assist system monitors
the rear area of your vehicle by means of
four sensors in the rear bumper.
1SensorsWarning!
G
Rear Parking Assist (rear 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
street curbs). Such objects may not be de-
tected by the system and can damage the
vehicle.
The operational function of the Rear Parking
Assist can be affected by dirty sensors, es-
pecially at times of snow and ice. See
“Cleaning the Rear Parking Assist sensors”
(page 283).
Interference caused by other ultrasonic sig-
nals (e.g. working jackhammers or the air
brakes of trucks) can cause the system to
send erratic indications, and should be tak-
en into consideration.Warning!
G
Make sure no persons or animals are in the
area in which you are maneuvering. You
could otherwise injure them.