key MERCEDES-BENZ R320CDI 2007 R171 Workshop Manual

133 Controls in detail
Seats
With the easy-entry/exit feature activated,
the steering wheel tilts upwards when you

remove the SmartKey from the starter
switch
or

open the driver’s door with the
SmartKey in starter switch position
0or1(
page 39) or the
KEYLESS-GO* start/stop button in
position1 (
page 41)
Easy-entry/exit feature for third-row
seats
This feature allows for easier access to and
exit from the vehicle’s third-row seats.Easy-entry feature for third-row seats
The releases for the easy-entry feature are
located on the entry side and the back of
each second-row seat.
1Easy-entry lever
Pull and hold easy-entry lever 1 in di-
rection of arrow at resistance point.
The seat backrest folds forward.
iIf the current position for the steering wheel
is in the uppermost tilt position, the steering
wheel will no longer be able to move upward
when the easy-entry/exit feature is activated.
The adjustment procedure is briefly interrupted,
when the engine is started.
Warning!G
Let the system complete the adjustment
procedure before setting the vehicle in mo-
tion. All steering wheel adjustments must be
completed before setting the vehicle in mo-
tion. Driving off with the steering wheel still
adjusting could cause the driver to lose con-
trol of the vehicle.
Warning!G
To help avoid personal injury, the sec-
ond-row seat backrests must be properly
locked either in the upright position or,
when using the expanded cargo compart-
ment, in the fully folded position while the
vehicle is in motion.

147 Controls in detail
Lighting
Manual headlamp mode
The low beam headlamps and the parking
lamps can be switched on and off with the
exterior lamp switch.
Turn the exterior lamp switch to
positionB.
Automatic headlamp mode
The following lamps switch on and off
automatically depending on the brightness
of the ambient light:

Low beam headlamps

Tail and parking lamps

License plate lamps

Side marker lamps
Turn the exterior lamp switch to
positionU.
With the SmartKey in starter switch
position1 or the KEYLESS-GO*
start/stop button pressed once, only
the parking lamps and the side marker
lamps will switch on and off automati-
cally.
When the engine is running, the low
beam headlamps, the tail and parking
lamps, the license plate lamps, and the
side marker lamps will switch on and
off automatically.
Warning!G
If the exterior lamp switch is set toU,

the headlamps may switch off
unexpectedly when the system senses
bright ambient light, for example light
from oncoming traffic

the headlamps will not be automatically
switched on under foggy conditions
To minimize risk to you and to others,
activate headlamps by turning exterior lamp
switch toB when driving or when traffic
and/or ambient lighting conditions require
you to do so.
In low ambient lighting conditions, only
switch from positionU toB with the
vehicle at a standstill in a safe location.
Switching fromUtoB will briefly
switch off the headlamps. Doing so while
driving in low ambient lighting conditions
may result in an accident.
The automatic headlamp feature is only an
aid to the driver. The driver is responsible for
the operation of the vehicle’s lights at all
times.

152 Controls in detail
Lighting
Switching off corner-illuminating front
fog lamps
The combination switch for the turn signal
resets automatically after major steering
wheel movements. This will switch off the
corner-illuminating front fog lamps if they
were activated by switching on the left or
right turn signal.
If the turn signal should stay on after
making the turn, the turn signal and
corner-illuminating front fog lamps can be
switched off by returning the combination
switch to its original position.Driving rearward
Switching on corner-illuminating front
fog lamps
Shift the automatic transmission to
reverse gearR (
page 199).
The corner-illuminating front fog lamp
opposite to your steering direction
comes on.
Switching off corner-illuminating front
fog lamps
Shift the automatic transmission
to a gear other than reverse
gearR(
page 197).
The respective front fog lamp goes out.
Hazard warning flasher
The hazard warning flasher can be
switched on at all times, even with the
SmartKey removed from the starter switch
or with the SmartKey with KEYLESS-GO*
removed from the vehicle.
The hazard warning flasher switches on
automatically when an air bag deploys.
The hazard warning flasher switch is
located on the upper part of the center
console.
1Hazard warning flasher switch
iThere may be a brief delay before the
corner-illuminating front fog lamps switch off.

153 Controls in detail
Lighting
Switching on hazard warning flasher
Press hazard warning flasher
switch1.
All turn signals are flashing.
Switching off hazard warning flasher
Press hazard warning flasher switch1
again.
Interior lighting
1Front left reading lamp, on/off
2Rear interior lighting, on/off
3Automatic interior lighting
4Front interior lighting, on/off
5Front right reading lamp, on/off
6Front right interior lamp
7Reading lamps
8Front left interior lampThe controls are located in the overhead
control panel.
Deactivating automatic control
Press switch3.
The interior lighting and the locator
lighting (
page 184) remain switched
off even when you

unlock the vehicle

remove the SmartKey from the
starter switch

open a door

open the tailgate
iWith the hazard warning flasher activated
and the combination switch set for either left or
right turn, only the respective left or right turn
signals will operate when the ignition is
switched on.
iIf the hazard warning flasher has been
activated automatically, press hazard warning
flasher switch1 once to switch it off.
!An interior lamp switched on manually does
not go out automatically.
Leaving an interior lamp switch in the ON
position for extended periods of time with the
engine turned off could result in a discharged
battery.
iThe interior lighting is factory-set to
automatic mode.

154 Controls in detail
Lighting
Activating automatic control
Press switch3.
The interior lighting and the locator
lighting (
page 184) come on when
you

unlock the vehicle

remove the SmartKey from the
starter switch

open a door

open the tailgate
The interior lighting switches off after
10 seconds see “Setting interior lighting
delayed shut-off” (
page 186).Manual control
Switching front/rear interior lighting on
and off
Press front/rear interior lighting
switch4 or 2 (
page 153) to switch
on the desired interior light.
Press front/rear interior lighting
switch4 or 2 again to switch off the
respective interior light.
Switching front reading lamps on and off
The front reading lamps are located in the
lower edge of the interior rear view mirror.
Press front reading lamp
switch1or5 (
page 153) to
switch on the desired front reading
lamp.
Press front reading lamp
switch1or5 again to switch off the
respective front reading lamp.Switching second-row reading lamps on
and off
The second row reading lamps are located
above the side windows.
1Second-row reading lamp
Press on reading lamp 1 in direction
of arrow.
The reading lamp comes on.
Press on reading lamp 1 in direction
of arrow once more.
The reading lamp goes out.
iIf a door remains open, the interior lighting
switches off automatically after approximately
5minutes.

155 Controls in detail
Lighting
Switching third-row reading lamps* on
and off
The switches for the third-row reading
lamps are located in the rear overhead
control panel.
1Rear right reading lamp, on/off
2Rear left reading lamp, on/off
3Rear left reading lamp
4Rear interior lamp
5Rear right reading lampPress rear reading lamp
switch1or2 to switch on the
respective rear reading lamp.
Press rear reading lamp
switch1or2 again to switch off the
respective rear reading lamp.
Door entry lamps
For better orientation in the dark, the
corresponding door entry lamps will switch
on in darkness when you open a door and
the automatic control is activated.
The door entry lamps will switch off when
the corresponding door is closed.
Cargo compartment lamp
The cargo compartment lamp comes on
when the tailgate is opened.
If you leave the tailgate open for an
extended period of time, the cargo
compartment lamp will switch off
automatically after approximately
10 minutes.
iThe rear interior lighting is switched on and
off using the switch on the front overhead con-
trol panel (
page 153).iIf you turn the SmartKey in the starter
switch to position0 and switch off the
headlamps, the door entry lamps will remain lit
for approximately 5 minutes.

159 Controls in detail
Control system
Control system
The control system is activated as soon as
the SmartKey in the starter switch is
turned to position1 (
page 40) or as
soon as the KEYLESS-GO start/stop
button* is in position1 (
page 41). The
control system enables you to

call up information about your vehicle

change vehicle settings
For example, you can use the control
system to find out when your vehicle is
next due for maintenance service, to set
the language for messages in the instru-
ment cluster display, and much more.
The control system relays information to
the multifunction display.
Multifunction display
1Trip odometer
2Main odometer
3Transmission position indicator
4Current transmission program mode
5Status indicator (outside temperature
or digital speedometer)
For more information on menus displayed
in the multifunction display, see “Menus”
(
page 162).
iThe displays for the audio systems (radio,
CD player) will appear in English, regardless of
the language selected.
Warning!G
A driver’s attention to the road and traffic
conditions must always be his/her primary
focus when driving.
For your safety and the safety of others,
selecting features through the multifunction
steering wheel should only be done by the
driver when traffic and road conditions
permit it to be done safely.
Bear in mind that at a speed of just
30 mph (approximately 50 km/h), your
vehicle is covering a distance of
44 feet (approximately 14 m) every second.

169 Controls in detail
Control system
RACETIMER
The RACETIMER allows you to time and
save driving stretches in hours, minutes
and seconds.Press button è or ÿ repeatedly
until you see the AMG menu.
Press button j repeatedly until you
see the RACETIMER.
1Gear indicator
2RACETIMER
3Lap numberStarting the RACETIMER
Press button æ.
The timer starts.
Displaying intermediate time
Press button ç while the timer is
running.
The intermediate time is shown for
5 seconds.
Stopping the RACETIMER
Press button æ.
The timer stops.
Warning!G
The RACETIMER feature is only for use on
roads and in conditions where high speed
driving is permitted. Racing on public roads
is prohibited under any circumstances and
the driver is and must always remain re-
sponsible for following posted speed limits.
iYou can start the RACETIMER when the
engine is running or the starter switch is in
position2 (
page 39).
iWhile the RACETIMER is being displayed,
you cannot adjust the audio volume using
buttonsæ or ç.
iWhen you stop the vehicle and turn the
SmartKey to position 1 (
page 39) or, in vehi-
cles with KEYLESS-GO*, turn off the engine and
do not open the driver’s door, the RACETIMER
stops timing. Timing is resumed when you
switch the ignition back on (
page 39) or
restart the engine (
page 54) and then press
the æbutton.

172 Controls in detail
Control system
Press buttonk orj repeatedly
until the desired station is found.
The station search depends on the
selected setting in the
Vehicle
submenu of the control system
(
page 188).
Pressing buttonkorj will
either start a frequency scan or select
the next stored radio station.
Selecting satellite radio station*
(USA only)
The satellite radio is treated as a radio
application.
Select satellite radio with the
corresponding soft key on the
COMAND system.1SAT mode
2Channel name or number
Press buttonk orj repeatedly
until the desired channel is found.Operating the CD player
Selecting CD track
Turn on the COMAND system and
select CD. Refer to separate COMAND
system operating instructions.
Press buttonè orÿ repeatedly
until the settings for the CD currently
being played appear in the multifunc-
tion display.
1Current CD (for CD changer*)
2Current track
Press buttonk orj repeatedly
until the desired track is selected.
iYou can only store new stations using the
corresponding feature on the radio. Refer to
separate COMAND system operating
instructions. You can also operate the radio in
the usual manner.
iAdditional optional satellite radio equipment
and a subscription to satellite radio service
provider are required for satellite radio opera-
tion. Contact an authorized Mercedes-Benz
Light Truck Center for details and availability for
your vehicle.
For more information, refer to separate
COMAND system operating instructions.
iVehicles with CD changer*: To select a CD
from the magazine, press a number on the
COMAND system key pad located in the center
console.


175 Controls in detail
Control system
Press buttonè orÿ repeatedly
until the vehicle status message
memory appears in the multifunction
display.If conditions have occurred causing status
messages to be recorded, the number of
messages appears in the multifunction
display:
Press buttonk orj.
The stored messages will now be
displayed in the order in which they
have occurred. For malfunctions and
warning messages, see “Vehicle status
messages in the multifunction display”
(
page 433).Should the vehicle’s system record any
conditions while driving, the number of
messages will reappear in the multifunc-
tion display

when the SmartKey in the starter
switch is turned to position0 or
removed from the starter switch
or

when you turn off the engine by
pressing the KEYLESS-GO* start/stop
button (
page 67) in the starter
switch once and open the driver’s door
(this puts the starter switch in
position0, same as with the SmartKey
removed from the starter switch)
Warning!G
Malfunction and warning messages are only
indicated for certain systems and are inten-
tionally not very detailed. The malfunction
and warning messages are simply a remind-
er with respect to the operation of certain
systems and do not replace the owner’s
and/or driver’s responsibility to maintain
the vehicle’s operating safety by having all
required maintenance and safety checks
performed on the vehicle and by bringing
the vehicle to an authorized Mercedes-Benz
Light Truck Center to address the malfunc-
tion and warning messages (
page 433).
iAfter you have scrolled through all recorded
status messages, the first recorded message
appears again.
iThe vehicle status message memory will
be cleared when you turn the SmartKey in the
starter switch to position1 or2, or when you
press the KEYLESS-GO* start/stop button once
or twice without depressing the brake pedal. You
will then only see high priority messages in the
multifunction display (
page 433).