Page 228 of 666

226 Controls in detailAir conditioning
3
Setting the airflowThe airflow is set using the airflow con-
trol for the rear compartment.\1To increase:
press the
Q
airflow
control.
\1To reduce:
press the airflow
control.
The display next to the airflow con-
trols indicates the speed of the air-
flow.
Setting the temperatureOnly change the temperature in small in-
crements.\1To increase:
turn the temperature
selector control clockwise.
\1To reduce:
turn the temperature se-
lector control counterclockwise.
Air vents in the roof air ductAdjustable air vents are integrated in the
roof air duct.1Air vents\1
Adjust the airflow by opening /
closing the air flaps.
iYour vehicle may be equipped with
an air-conditioning system in the rear
compartment and / or a rear heater.
If both systems are installed and the
temperature selector control is in the
middle position, only one of the sys-
tems operates and air-recirculation
mode is active.
nf_BA.book Page 226 Friday, January 25, 2008 3:53 PM
Page 243 of 666

241 Controls in detail
Auxiliary heating/ventilation*
3
Operating system without steering
wheel buttons
\1
Switch on the ignition (
\2
page 111).
\1
Press the
ö
switch.
The
ö
symbol in the display flashes.
or \1
Press the
menu button on the
in-
strument cluster repeatedly until the
ö
symbol in the display flashes.
\1
Use the or button on the
in-
strument cluster to select desired
switch-on time
1 to
3.
The switch-on time selected is dis-
played.
\1
Wait 10 seconds for the standard
display to appear.The switch-on time is selected.
The yellow indicator lamp in
the
ö
switch comes on.
If you have not selected a switch-on time
and
--:--
appears in the display, the au-
tomatic switch-on is deactivated. The
yellow indicator lamp in the
ö
switch
goes out.
Operating system with steering wheel
buttons*
\1
Switch on the ignition (
\2
page 111).
\1
Briefly press the
ö
switch.
The
Aux. heat.
submenu is shown in
the display.
The selected switch-on time is high-
lighted or
Timer off
is highlighted if
no switch-on time has been selected.
iIf you turn the key to position
0 in the
ignition lock, the yellow indicator
lamp in the
ö
switch goes out af-
ter 30 minutes.
The red indicator lamp in the
ö
switch comes on when the auxiliary
heating switches on.
N54.32-2277-31
nf_BA.book Page 241 Friday, January 25, 2008 3:53 PM
Page 244 of 666

242 Controls in detailAuxiliary heating/ventilation*
3
\1
Press the
æ
or
ç
button to se-
lect the desired switch-on time. The
automatic switch-on is deactivated if
the
Timer off
setting is selected.
\1
Press the
è
button.
The switch-on time is selected.
The yellow indicator lamp in
the
ö
switch comes on.
Setting the switch-on time
Operating system without steering
wheel buttons
\1
Select a switch-on time as described
under “Selecting a switch-on time”
(\2
page 240).
\1
Press the reset button on the
in-
strument cluster to set the selected
switch-on time.
The hours figure flashes and
the
”
symbol appears in the dis-
play.
\1
Set the hours using the or
am
button on the
instrument cluster.
\1
Press the reset button.
The minute display flashes.
\1
Set the minutes using the
or button.
iYou can reach the
Aux. heat.
sub-
menu via the
Settings
menu
(
\2
page 161).
iIf you turn the key to position
0 in the
ignition lock, the yellow indicator
lamp in the
ö
switch goes out af-
ter 30 minutes.
The red indicator lamp in the
ö
switch comes on when the auxiliary
heating switches on.
nf_BA.book Page 242 Friday, January 25, 2008 3:53 PM
Page 245 of 666
243 Controls in detail
Auxiliary heating/ventilation*
3
Operating system with steering wheel
buttons
\1
Select a switch-on time as described
under “Selecting a switch-on time”
(\2
page 240).
\1
Press the
j
button.
The
Hours
menu appears in the dis-
play.
\1
Set the hours using the
æ
or
ç
button.
\1
Press the
j
button.
The
Minutes
menu appears in the
display.
\1
Set the minutes using the
æ
or
ç
button.
\1
Press the
è
button.
The switch-on time is set and selected.
iIf you keep the button pressed, the
values will change continuously.
To return to the standard display:\4
press and hold the button
on the
instrument cluster for
more than 1 second
\4
do not press a button for
10 seconds
iTo return to the standard display,
press the
è
or
ÿ
button re-
peatedly until the standard display
appears.
nf_BA.book Page 243 Friday, January 25, 2008 3:53 PM
Page 257 of 666

255 Controls in detail
Driving systems
3
Front sensors
Rear sensors
Minimum distance
If an obstacle is within this range, all seg-
ments of the warning displays light up
and a warning tone sounds (the warning
for the front sounds different than the
warning for the rear). The distance may
no longer be displayed if you drive the
vehicle closer to the obstacle than the
minimum distance.
Center
about 39 in (100 cm)
Corners
about 26 in (65 cm)
Center
about 71 in (180 cm)
Corners
about 39 in (100 cm)
Center
about 12 in (30 cm)
Corners, front
about 10 in (25 cm)
Corners, rear
about 12 in (30 cm)
!
CAUTION
Pay particular attention to obstacles
above or below the sensors when
p a r k i n g , s u c h a s f l o w e r p o t s o r t r a i l e r
towbars.
Parktronic does not detect such ob-
jects in the immediate vicinity. You
could damage the vehicle or objects.
Parktronic can malfunction as a con-
sequence of:\4
ultrasonic sources such as a
truck’s compressed-air brakes,
an automatic car wash or a pneu-
matic drill
\4
attachments to the vehicle, e.g.
load-bearing implements or trail-
er couplings
\4
number plates (vehicle license
plates) that are not affixed flat
against the bumper
\4
dirty or icy sensors
nf_BA.book Page 255 Friday, January 25, 2008 3:53 PM
Page 258 of 666
256 Controls in detailDriving systems
3
Warning displays
The warning displays indicate the dis-
tance between the sensor and the ob-
stacle.
The warning display for the front area is
located on the middle of the dashboard
above the center console.
Front area warning display
1Left-hand side of vehicle
2Right-hand side of vehicle
3Indicator segmentsThe warning displays for the rear left and
right-hand sides are in the exterior mir-
ror concerned.
Warning display in the left-hand exterior
mirror for the area to the rear left-hand side4Left-hand side of vehicle
5Indicator segmentsThe warning display is divided into 5 yellow
and 2 red segments for each side of the ve-
hicle. Parktronic is operational if yellow indi-
cator segments
3
and
5
light up.
N54.65-2074-31
N54.65-2075-31
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Page 259 of 666

257 Controls in detail
Driving systems
3
The selector lever position determines
whether the front and/or rear area is
monitored.One or more segments light up as the
vehicle approaches an obstacle, de-
pending on the vehicle’s distance from
the obstacle.
From the:
\4
sixth segment, an intermittent warn-
ing tone sounds for approximately
2seconds
\4
seventh segment, a continuous
warning tone sounds for approxi-
mately 2 seconds. You have reached
the minimum distance.
Roll-back warningParktronic automatically begins to mon-
itor the area behind the vehicle if the ve-
hicle begins to roll backwards without
reverse gear engaged, e.g. after stop-
ping on an uphill gradient.
If Parktronic detects an obstacle no
more than 31 in (80 cm) away,\4
all the segments of the warning dis-
plays light up
\4
a continuous warning tone sounds as
the vehicle approaches the obstacle
and for a further 2 seconds after the
vehicle has come to a halt
!
CAUTION
There is a malfunction if only the red
segments of the warning display light
up (\2
page 451).
Transmission
position
Monitoring
D
Front area
R or
N
Front and rear
area
P
No areas activated
nf_BA.book Page 257 Friday, January 25, 2008 3:53 PM
Page 260 of 666
258 Controls in detailDriving systems
3
Switching Parktronic on/off You can switch Parktronic on and off
manually.
The switch is located on the center con-
sole.1To switch Parktronic on/off
\1To switch off:
press upper part
1
of the switch.
The indicator lamp in the switch
comes on.
\1To switch on:
press upper part
1
of
the switch again.
The indicator lamp in the switch goes
out.
Trailer towingIf you attach a trailer, Parktronic is deac-
tivated for the rear area as soon as you
make the electrical connection between
your vehicle and the trailer.The rear view camera is a visual parking
aid. It displays the area behind your ve-
hicle on a separate monitor located on
the center console.
The rear view camera is activated when
you engage reverse gear.
The camera is located in the center of
the roof above the third brake lamp
(
\2
page 422). N54.25-2922-31Rear view camera*
nf_BA.book Page 258 Friday, January 25, 2008 3:53 PM