2007 MERCEDES-BENZ R320CDI steering

145 Controls in detail
Memory function*
The memory button and stored position
buttons are located on the entry side of
each front seat base.
MMemory button
1, 2, 3Stored positions
Switch on the ignition (page 39).
or
Open the respective door.
Storing positions into memory
Adjust the seats (page 44).
On the driver’s side, additionally adjust
the steering wheel (
page 46) and
exterior rear view mirrors (
page 48)
to the desired positions.
Press memory buttonM.
Release memory button M and press
stored position 1, 2 or 3 within
3 seconds.
All settings are stored to the selected
position.
Recalling positions from memory
Press and hold stored position
button1,2 or3 until the seat, steering
wheel and exterior rear view mirrors
have fully moved to the stored posi-
tions.
!Do not operate the power seats using mem-
ory button M if the seat backrest is in an exces-
sively reclined position. Doing so could cause
damage to front or rear seats.
Move seat backrest to an upright position first.
iReleasing the stored position button stops
movement to the stored positions immediately.

146 Controls in detail
Lighting
For information on how to switch on the
headlamps and use the turn signals, see
“Switching on headlamps” (
page 59)
and “Turn signals” (
page 60).
Exterior lamp switch
MOff
Daytime running lamp mode
(
page 148)
UAutomatic headlamp mode
Daytime running lamp mode
(
page 147)
CParking lamps (also tail lamps,
license plate lamps, side marker
lamps, instrument panel lamps)
BLow beam headlamps or high beam
headlamps when the combination
switch is pushed forward. The tail
lamps, license plate lamps, side marker lamps, parking lamps and
instrument panel lamps also come
on.
ˆStanding lamps, right (turn left one
stop)
‚Standing lamps, left (turn left two
stops)
‡Indicator lamp for front fog lamps*
†Indicator lamp for rear fog lamp
iIf you drive in countries where vehicles drive
on the other side of the road than the country in
which the vehicle is registered, you must have
the headlamps modified for symmetrical low
beams. Relevant information can be obtained at
any authorized Mercedes-Benz Light Truck
Center.
iVehicles with active Bi-Xenon* headlamps:
The active Bi-Xenon* headlamps monitor the
vehicle’s steering angle and speed, then auto-
matically shift their beams to either side to
better follow the curvature of the road ahead, in-
creasing usable illumination over conventional
headlamps.iIf you hear a warning signal when exiting the
vehicle, you have forgotten to switch off the ex-
terior lamps.
In addition the message
Switch off lights
appears in the multifunction display.
Switch off the exterior lamps.
iWith the daytime running lamp mode activat-
ed and the engine running, the low beam head-
lamps cannot be switched off manually.
For information on how to activate the daytime
running lamp mode, see “Daytime running lamp
mode” (
page 148).

151 Controls in detail
Lighting
Corner-illuminating front fog lamps*
The corner-illuminating front fog lamps
improve illumination of the area in the
direction into which you are turning.
The corner-illuminating front fog lamps will
operate with the engine running and with

the exterior lamp switch in
positionB (
page 146)
or

the exterior lamp switch in
positionU (
page 146)
or

the daytime running lamp mode
activated (
page 148)Driving forward
Switching on corner-illuminating front
fog lamps
Switch on the left or right turn signal
(
page 60), depending on whether
you are turning left or right.
The respective front fog lamp comes on
and illuminates the area in the
direction into which you are turning.
or
Turn steering wheel in desired direc-
tion.
The front fog lamp on the side of your
steering direction comes on.iWith the automatic headlamp mode
activated, the corner-illuminating front fog lamps
will only come on in low ambient lighting condi-
tions.
The corner-illuminating front fog lamps
function is not available at a vehicle speed
above25mph(40km/h).
iIf you are driving faster than
25 mph (40 km/h) or have the front fog lamps
switched on, the corner-illuminating function is
not available.iIf you have switched on the turn signal for
one side but turn the steering wheel in the
opposite direction, the corner-illuminating front
fog lamp comes on for the side indicated by the
turn signal.
The corner-illuminating front fog lamp remains lit
for a maximum of three minutes. Afterwards, it
goes out even if the turn signal is still switched
on.
iThe corner-illuminating front fog lamps tem-
porarily come on both sides of the vehicle if you
turn the steering wheel in one direction and then
again in the other direction shortly thereafter.
iThe corner-illuminating front fog lamps will
come on automatically depending on the steer-
ing angle, even if you did not switch on either
turn signal. If the corner-illuminating front fog
lamps came on automatically, they will also go
out automatically depending on the steering
angle.

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.

157 Controls in detail
Instrument cluster
Adjusting instrument cluster
illumination
Use button 1 or 3 to adjust the illumina-
tion brightness for the instrument cluster.
To brighten illumination
Press and hold button 3 until the
desired level of illumination is reached.
To dim illumination
Press and hold button 1 until the
desired level of illumination is reached.
Resetting the trip odometer
Make sure you are viewing the trip odome-
ter display (
page 159).
If it is not displayed, press buttonè
orÿ on the multifunction steering
wheel (
page 160) repeatedly until
the trip odometer appears in the multi-
function display.
Press and hold reset button 2
(
page 156) until the trip odometer is
reset.
Tachometer
The red marking on the tachometer
(
page 26) denotes excessive engine
speed.
To help protect the engine, the fuel supply
is interrupted if the engine is operated
within the red marking.
iThe instrument cluster illumination is
dimmed or brightened automatically to suit
ambient light conditions.
The instrument cluster illumination will also be
adjusted automatically when you switch on the
vehicle’s exterior lamps.!Avoid driving at excessive engine speeds, as
it may result in serious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.

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.

160 Controls in detail
Control system
Multifunction steering wheel
The displays in the multifunction display
and the settings in the control system are
controlled by the buttons on the multifunc-
tion steering wheel.
Depending on the selected menu, pressing
the buttons on the multifunction steering
wheel will alter what is shown in the multi-
function display.
The information available in the multifunc-
tion display is arranged in menus, each
containing a number of functions or sub-
menus.
The individual functions are then found
within the relevant menu (radio or
CD operations under
AUDIO, for example).
These functions serve to call up relevant
information or to customize the settings
for your vehicle.
1Multifunction display
Operating the control system
2Selecting the submenu or setting
the volume:
Press button
æup/to increase
çdown/to decrease
3Telephone*:
Press button
sto take a call
to dial
to redial
tto end a call
to reject an incoming call
4Moving within a menu:
Press button
jfor next display
kfor previous display
5Menu systems:
Press button
èfor next menu
ÿfor previous menu
6Voice Control*1
1Vehicles without Voice Control*: Button without
function.
7Voice Control*1

190 Controls in detail
Control system
Activating easy-entry/exit feature*
Use this function to activate and
deactivate the easy-entry/exit feature
(
page 132).
Move the selection marker with
buttonæ orç to the
Comfort
submenu.
Press buttonj ork repeatedly
until the message
Easy-entry feature
appears in the multifunction display.
The selection marker is on the current
setting.
Press buttonæ orç to switch
the easy-entry/exit feature
On or Off.Setting fold-in function for exterior rear
view mirrors*
Using this function, you can set the
exterior rear view mirrors to be automati-
cally folded in when you lock your vehicle.
Warning!G
You must make sure no one can become
trapped or injured by the moving steering
wheel when the easy-entry/exit feature is
activated.
To stop steering wheel movement, do one of
the following:

Move steering wheel adjustment stalk*
(
page 47).

Press one of the memory position
buttons or memory button M*
(
page 145).
Do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle.
Children could open the driver’s door and
unintentionally activate the easy-entry/exit
feature, which could result in an accident
and/or serious personal injury.
iWith this function set to On and the exterior
rear view mirrors folded in using the button on
the door control panel (
page 214), the exterior
rear view mirrors will not fold out when you
switch on the ignition. You will then have to fold
out the exterior rear view mirrors using the
button on the door control panel (
page 214).
Make sure both exterior rear view mirrors are
folded out completely before driving off.