2010 MERCEDES-BENZ R320 ECU

Seat locked
When the seat is locked, lock status
indicator : is in hinged position and red
marking ; is barely visible.
Lumbar support
You can adjust the contour of the driver’s seat
lumbar support to help enhance support to
your spine. X
Curvature position: Use button : to
move the curvature up and button = to
move it down.
X Degree of curvature: Use button ; to
lessen the curvature and button ? to
increase it. Rear seats
G
Warning!
According to accident statistics, children are
safer when properly restrained in the rear seating positions than in the front seating
position. Thus, we strongly recommend that
children be placed in the rear seats whenever
possible. Regardless of seating position,
children 12 years old and under must be
seated and properly secured in an
appropriately sized infant restraint, toddler
restraint, or booster seat recommended for
the size and weight of the child. For additional
information, see “Children in the vehicle”.
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and/
or the child is not properly secured in the child
restraint.
Rear seat adjustment G
Warning!
Never ride in a moving vehicle with the seat
backrest in an excessively reclined position as
this can be dangerous. You could slide under
the seat belt in a collision. If you slide under
it, the seat belt would apply force at the
abdomen or neck. That could cause serious
or fatal injuries. The seat backrest and seat
belts provide the best restraint when the
wearer is in a nearly upright position and seat
belts are properly positioned on the body.
Your seat must be adjusted so that you can
correctly fasten your seat belt.
Never place hands under the seat or near any
moving parts while a seat is being adjusted.
After adjusting rear seats, make sure
R the seats are properly locked
R the seat backrests are in an upright position
and are properly locked
An outboard second-row seat is properly
locked only when lock status indicator : is
in hinged position and red marking ; is
barely visible.
If a seat and seat backrest are not properly
locked, the seat could move forward and the
seat backrest could fold. You could slide
under the seat belt during braking, vehicle 86
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Steering wheel adjustment, manual
X
Unlocking: Pull release handle : out to
its stop limit.
X Move steering wheel to the desired
position.
X Locking: Push release handle : back to
its original position.
X Make sure the steering wheel is securely
locked by trying to move it up and down as
well as in and out before driving off. Steering wheel adjustment, electrical
X
Adjusting steering wheel in or out: Move
stalk in direction of arrows :.
X Adjusting steering wheel up or down:
Move stalk in direction of arrows ;.
i You can store the settings for the steering
wheel with the memory function
(Y page 96). Easy-entry/exit feature
This feature allows the driver an easier entry
into and exit from the vehicle. When entering
and exiting the vehicle, the steering wheel is
in its uppermost position.
The easy-entry/exit feature can be activated
or deactivated in the Comfort submenu of the
control system ( Y page 137). G
Warning!
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:
R Move steering wheel adjustment stalk.
R Press one of the memory position buttons.
R Press memory button M.
Do not leave children unattended in the
vehicle, 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.
With the easy-entry/exit feature activated,
the steering wheel will return to its last set
position when you close the driver’s door with
the ignition switched on. The steering wheel
will also return to its last set position when
you insert the SmartKey into the starter
switch or press the KEYLESS-GO start/stop
button once with the driver’s door closed.
i The last set steering wheel position is
stored when the ignition is switched off or
the position is stored in memory
(Y page 97).
With the easy-entry/exit feature activated,
the steering wheel tilts upwards when you
remove the SmartKey from the starter switch.
The steering wheel also tilts upwards when
you open the driver’s door with the SmartKey
in starter switch position 0 or 1 or the
KEYLESS-GO start/stop button in position 1.92
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G
Warning!
In low ambient lighting or foggy conditions,
only switch from position à to L with
the vehicle at a standstill in a safe location.
Switching from à to L will briefly
switch off the headlamps. Doing so while
driving in low ambient lighting conditions may
result in an accident.
Fog lamps will operate with the parking lamps
and/or the low-beam headlamps on. Fog
lamps should only be used in conjunction with
low-beam headlamps. Consult your State or
Province Motor Vehicle Regulations
regarding permissible lamp operation.
X Switch on the ignition.
X Turn the exterior lamp switch to position
T or L (Y page 97).
X Switching on front fog lamps: Pull out the
exterior lamp switch to first stop.
The green indicator lamp N in the
exterior lamp switch comes on.
X Switching on rear fog lamp: Pull out the
exterior lamp switch to second stop.
The rear fog lamp, the front fog lamps, the
green and the yellow indicator lamp R
in the exterior lamp switch come on.
X Switching off front fog lamps/rear fog
lamp: Push in the exterior lamp switch to
its stop.
Locator lighting and night security
illumination Locator lighting and night security
illumination are described in the “Control
system” section, see “Switching locator
lighting on or off” (Y page 135) and
“Switching night security illumination
(Headlamps delayed shut-off feature) on or
off” (Y page 135). Combination switch
Turn signals
X
Press the combination switch in direction
of arrow ; or ?.
The corresponding turn signal indicator
lamp ! or # in the instrument
cluster flashes.
The combination switch resets automatically
after major steering wheel movements.
i To signal minor directional changes such
as changing lanes, press the combination
switch only to point of resistance and
release. The corresponding turn signal
lamps will flash three times.
High beam X
Turn the exterior lamp switch to position
L (Y page 97).
X Switching on: Push the combination
switch in direction of arrow :.
The high-beam headlamp indicator lamp
K in the instrument cluster comes on.
X Switching off: Pull the combination switch
in direction of arrow = to its original
position.
i Also note the information on high-beam
headlamps with activated automatic
headlamp mode (Y page 98) or the daytime
running lamp mode ( Y page 99).100
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Shifting into reverse gear R
X
With the vehicle at a standstill, depress the
brake pedal.
X Move the gear selector lever up past the
resistance point.
Shifting into drive position D X
With the vehicle at a standstill, depress the
brake pedal.
X Move the gear selector lever down past the
resistance point. Shifting procedure
The automatic transmission selects individual
gears automatically, depending on
R the selected gear range ( Y page 119)
R the selected program mode C/S
(Y page 120)
R the position of the accelerator pedal
R the vehicle speed
With drive position D selected, you can
influence transmission shifting by limiting or
extending the gear range. Transmission positions
The current transmission position appears in
the multifunction display. :
Transmission position indicator
If the current transmission position does not
appear in the multifunction display due to a
malfunction, for example, make sure that the
automatic transmission is in the desired
position. X
Shift the automatic transmission into drive
position D.
X Select program mode S.
X Do not limit the gear range.
X Drive off carefully. Effect
B
Park position
Shift the automatic transmission
into park position P only when the
vehicle is stopped. The park position
is not intended to serve as a brake
when the vehicle is parked. Rather,
the driver should always engage the
parking brake in addition to shifting
the automatic transmission into
park position P to secure the
vehicle.
If the vehicle’s electrical system is
malfunctioning, the automatic
transmission could remain locked in
park position P.
X
Have the vehicle’s electrical
system checked at an authorized
Mercedes-Benz Center as soon as
possible. C
Reverse gear
Shift the automatic transmission
into reverse gear R only when the
vehicle is stopped.118
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R
Selecting language ( Y page 133)
R Selecting display (digital speedometer or
outside temperature) for status indicator
(Y page 133)
Time/Date submenu
R Setting the time ( Y page 133)
R Setting the date (Y page 134)
Lighting submenu
R Switching daytime running lamp mode on
or off (USA only) (Y page 134)
R Switching locator lighting on or off
(Y page 135)
R Switching night security illumination
(Headlamps delayed shut-off feature) on or
off (Y page 135)
R Switching interior lighting delayed shut-off
on or off ( Y page 136)
Vehicle submenu
R Switching automatic central locking on or
off (Y page 137)
Comfort submenu
R Activating easy-entry/exit feature
(Y page 137)
R Activating/deactivating seat belt
adjustment feature (Y page 138)
R Switching fold-in function for exterior rear
view mirrors on or off (Y page 138)
Instrument cluster submenu Access the
Instrument Cluster submenu
via the Settings menu. Use the
Instrument Cluster submenu to change
the instrument cluster display settings.
The following functions are available:
R Selecting speedometer/odometer display
mode ( Y page 132) (Canada only)
R Selecting digital speedometer display
mode ( Y page 132) R
Selecting language ( Y page 133)
R Selecting display (digital speedometer or
outside temperature) for status indicator
(Y page 133)
Selecting speedometer/odometer
display mode (Canada only)
X Press button V or U repeatedly until
the Settings menu appears in the
multifunction display.
X Press button &.
X Move the selection marker with button
W or X to the Instrument
Cluster submenu.
X Press button & or * repeatedly until
the message Display Unit
Speedometer/Odometer appears in the
multifunction display.
The selection marker is on the current
setting. X
Press button W or X to set
speedometer/odometer unit to Km or
Miles.
Selecting digital speedometer display
mode
X Press button V or U repeatedly until
the Settings menu appears in the
multifunction display.
X Press button &.
X Move the selection marker with button
W or X to the Instrument
Cluster submenu.
X Press button & or * repeatedly until
the message Display Unit Digital 132
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X
Press button V or U repeatedly until
the Settings menu appears in the
multifunction display.
X Press button &.
X Move the selection marker with button
W or X to the Time/Date submenu.
X Press button & or * repeatedly until
the message Clock Set Hour or Clock
Set Minute(s) appears in the
multifunction display.
The selection marker is on the current
setting. Example illustration for setting the hour
X
Press button W or X to set the hours
or minute(s).
Setting the date
This function is not available if your vehicle is
equipped with the COMAND system and
navigation module.
X Press button V or U repeatedly until
the Settings menu appears in the
multifunction display.
X Press button &.
X Move the selection marker with button
W or X to the Time/Date submenu.
X Press button & or * repeatedly until
the message Date Set Month , Date Set
Day, or Date Set Year appears in the
multifunction display.
The selection marker is on the current
setting. Example illustration for setting the month
X
Press button W or X to set the
month, day, or year.
Lighting submenu Access the
Lighting submenu via the
Settings menu. Use the Lighting submenu
to change the lamp and lighting settings on
your vehicle.
The following functions are available:
R Switching daytime running lamp mode on
or off (USA only) (Y page 134)
R Switching locator lighting on or off
(Y page 135)
R Switching night security illumination on or
off (Y page 135)
R Switching interior lighting delayed shut-off
on or off ( Y page 136)
Switching daytime running lamp mode on
or off (USA only)
X Press button V or U repeatedly until
the Settings menu appears in the
multifunction display.
X Press button &.
X Move the selection marker with button
W or X to the Lighting submenu.
X Press button & or * repeatedly until
the message Daytime Running Lamps
appears in the multifunction display.
The selection marker is on the current
setting. 134
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X
Press button W or X to switch the
daytime running lamp mode On or Off.
With daytime running lamp mode switched on
and the exterior lamp switch in
position $ or Ã, the low-beam
headlamps are switched on when the engine
is running.
In low ambient light conditions the following
lamps will come on additionally:
R Parking lamps
R Tail lamps
R License plate lamps
R Side marker lamps
For more information on the daytime running
lamp mode, see ( Y page 99).
For safety reasons, changing the setting for
the daytime running lamp mode is not
possible while the vehicle is in motion.
The following message appears in the
multifunction display:
Settings can only be made with
engine off.
For safety reasons, resetting all the functions
of all submenus to the factory settings while
driving ( Y page 131) will not deactivate the
daytime running lamp mode.
Switching locator lighting on or off
With the locator lighting feature activated, the
exterior lamp switch in position à and the
interior lighting in automatic mode, the
following lamps will come on during darkness
when the vehicle is unlocked using button
% on the SmartKey:
R Parking lamps
R Tail lamps R
License plate lamps
R Side marker lamps
R Front fog lamps
The locator lighting goes out when the driver’s
door is opened.
If you do not open the driver’s door after
unlocking the vehicle with the SmartKey, the
lamps will go out automatically after
approximately 40 seconds.
X Press button V or U repeatedly until
the Settings menu appears in the
multifunction display.
X Press button &.
X Move the selection marker with button
W or X to the Lighting submenu.
X Press button & or * repeatedly until
the message Surround Lighting
Function appears in the multifunction
display.
The selection marker is on the current
setting. X
Press button W or X to switch the
locator lighting function On or Off.
X Turn the exterior lamp switch to position
à when exiting the vehicle.
The locator lighting feature is activated.
Switching night security illumination
(Headlamps delayed shut-off feature) on
or off
Use this function to set whether you would
like the exterior lamps to remain on for
15 seconds during darkness after exiting the
vehicle and closing all doors. Control system
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Redialing
The control system stores the most recently
dialed phone numbers. This eliminates the
need to search through your entire phone
book.
X
Press button U or V repeatedly until
the message TEL appears in the
multifunction display.
X Press button 6.
The first number in the redial memory
appears in the multifunction display.
X Press button &
or * repeatedly until
the desired number or name appears in the
multifunction display.
X Press button 6.
The control system dials the selected
phone number. Driving systems
Introduction
This section describes the following driving
systems of your vehicle:
R Cruise control
R Distronic
R Distance warning function (only available
with Distronic)
R Hill-start assist system
R Rear-axle level control
R AIRMATIC
R All-wheel drive (4MATIC)
R Parktronic system
R Rear view camera
The

driving safety systems ABS, BAS, EBP and
ESP ®
are described in the “Safety and
security” section (Y page 63). Cruise control
The cruise control maintains the speed you
set for your vehicle automatically.
The

use of the cruise control is recommended
for driving at a constant speed for extended
periods of time.
The currently set speed or last set speed
(“Resume” function) appears in the status
indicator of the multifunction display:
R USA only: e.g. Cruise 55 Miles
R Canada only: e.g. ¯ 90 Km/h G
Warning!
The cruise control is a convenience system
designed to assist the driver during vehicle
operation. The driver is and must always
remain responsible for the vehicle’s speed
and for safe brake operation.
Only

use the cruise control if the road, traffic,
and weather conditions make it advisable to
travel at a constant speed.
R The use of the cruise control can be
dangerous on winding roads or in heavy
traffic because conditions do not allow safe
driving at a constant speed.
R The use of the cruise control can be
dangerous on slippery roads. Rapid
changes in tire traction can result in wheel
spin and loss of control.
R Deactivate the cruise control when driving
in fog.
The “Resume” function should only be
operated if the driver is fully aware of the
previously set speed and wishes to resume
this particular preset speed. 142
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