2010 MERCEDES-BENZ R320 Owner's Manual

Effect
A
Neutral position
No power is transmitted from the
engine to the drive axle. When the
brakes
are released, the vehicle can
be moved freely (pushed or towed).
To avoid damage to the
transmission, never shift the
automatic transmission into neutral
position N while driving.
Exception: If the ESP ®
is switched
off or malfunctioning, shift the
automatic transmission into neutral
position N if the vehicle is in danger
of skidding.
! Coasting the vehicle, or driving
for any other reason with the
automatic transmission in neutral
position N can result in
transmission damage that is not
covered by the Mercedes-Benz
Limited Warranty. 7
Drive position
The automatic transmission shifts
automatically. All forward gears are
available.
Driving tips
Kickdown Use the kickdown when you want maximum
acceleration.
X
U.S. vehicles: Fully depress the
accelerator pedal.
Depending on the engine speed the
automatic transmission shifts into a lower
gear.
X Canada vehicles:
Depress the accelerator
pedal past the point of resistance.
Depending on the engine speed the
automatic transmission shifts into a lower
gear. Rocking the vehicle Rocking the vehicle by shifting the automatic
transmission directly between drive position
D and reverse gear
R can help free a vehicle
stuck in mud or snow. The engine control
system of this vehicle electronically limits
directly shifting the automatic transmission
between drive position D and reverse gear R
to

very low speeds, i.e. approximately 5 mph
(9 km/h). To shift the automatic transmission
directly between drive position D and reverse
gear R, move the gear selector lever up or
down past the resistance point.
Working on the vehicle G
Warning!
When working on the vehicle, engage the
parking brake and shift the automatic
transmission into park position P. Otherwise
the

vehicle could roll away which could result
in an accident and/or serious personal injury.
Towing a trailer X
When you tow a trailer, shift into a lower
gear range manually if the automatic
transmission hunts between gears on
inclines.
A

lower gear range and reduction of speed
reduces the potential to overload or to
overheat the engine.
For more information on trailer towing, see
“Trailer towing”
(Y page 256). Gear ranges
With the automatic transmission in drive
position D, you can limit or extend the gear
range, see “One-touch gearshifting”
(Y page 120). Automatic transmission
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The current gear range appears in the
multifunction display.
:
Gear range indicator Effect
=
With this selection you can use the
braking effect of the engine.
5
Allows the use of the engine’s
braking effect when driving
R
on steep downgrades
R in mountainous regions
R under extreme operating
conditions 4
For maximum use of the engine’s
braking effect on very steep or
lengthy downgrades.
Automatic shift program
Program mode selector switch
C Comfort For comfort driving
S Sport For standard driving The current program mode appears in the
multifunction display.
:
Program mode indicator
You should only change the program mode
when the automatic transmission is in park
position P.
The last selected program mode ( C or S) is
active when the engine is restarted.
X Press the program mode selector switch
repeatedly until the letter of the desired
program mode appears in the multifunction
display.
Selecting program mode C means:
R The vehicle starts out more gentle, both
forward and reverse, except when driving
off with full throttle.
R Traction and driving stability are improved
on icy roads.
R Upshifts occur earlier even when you give
more gas. The engine then operates at
lower revolutions and the wheels are less
likely to spin.
Selecting program mode S means that
upshifts occur later. One-touch gearshifting
With the automatic transmission in drive
position D, you can limit or extend the gear
range using the steering wheel gearshift
control. 120
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Steering wheel gearshift control
i
You cannot shift with the steering wheel
gearshift control when the automatic
transmission is in park position P, neutral
position N, or reverse gear R.
Limiting gear range G
Warning!
On slippery road surfaces, never downshift in
order to obtain braking action. This could
result in drive wheel slip and reduced vehicle
control. Your vehicle’s ABS will not prevent
this type of loss of control.
X Briefly pull left gearshift control :.
The automatic transmission will shift into
the next lower gear as permitted by the
shift program. This action simultaneously
limits the gear range of the automatic
transmission.
i To avoid overrevving the engine when
downshifting, the automatic transmission
will not shift into a lower gear if the engine’s
maximum speed would be exceeded.
Extending gear range X
Briefly pull right gearshift control ;.
The automatic transmission will shift into
the next higher gear as permitted by the
shift program. This action simultaneously
extends the gear range of the automatic
transmission. i
If you press on the accelerator pedal
when the engine has reached the
revolution limit of the current gear range,
the automatic transmission will upshift
beyond any gear range limit selected.
Canceling gear range limit X
Pull and hold right gearshift control ; until
the gear range indicator disappears from
the multifunction display.
The automatic transmission will shift from
the current gear range directly into drive
position D.
Shifting into optimal gear range X
Pull and hold left gearshift control :.
The automatic transmission will select the
gear range suited for optimal acceleration
and deceleration automatically. This will
involve shifting down one or more gears. Emergency operation (limp-home
mode)
If vehicle acceleration becomes less
responsive or sluggish or the automatic
transmission no longer shifts, the automatic
transmission is most likely operating in limp-
home (emergency operation) mode. In this
mode only second gear and reverse gear R
can be selected.
X Stop the vehicle in a safe location.
X Shift the automatic transmission into park
position P.
X Turn off the engine.
X Wait at least 10 seconds before restarting.
X Restart the engine.
X Shift the automatic transmission into drive
position D (for second gear) or reverse gear
R.
X Have the automatic transmission checked
at an authorized Mercedes-Benz Center as
soon as possible. Automatic transmission
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Transfer case
The vehicle is equipped with all-wheel drive
(4MATIC). Both the front and rear axles are
powered at all times when the vehicle is being
operated.
! Only conduct operational or performance
tests on a two-axle dynamometer. If such
tests are necessary, contact an authorized
Mercedes-Benz Center. You could
otherwise seriously damage the brake
system or the transfer case which is not
covered by the Mercedes-Benz Limited
Warranty.
! Because the ESP ®
operates
automatically, the engine and ignition must
be shut off (SmartKey in starter switch
position 0 or 1 or KEYLESS-GO start/stop
button in position 0 or 1) when the parking
brake is being tested on a brake test
dynamometer. Such testing should be no
longer than 10 seconds.
Active braking action through the ESP ®
may otherwise seriously damage the brake
system which is not covered by the
Mercedes-Benz Limited Warranty. Instrument cluster
Introduction
For a full view illustration of the instrument
cluster, see “Instrument cluster”
(Y page 28). G
Warning!
No messages will be displayed if either the
instrument cluster or the multifunction
display is inoperative.
As a result, you will not be able to see
information about your driving conditions,
such as
R speed
R outside temperature R
warning/indicator lamps
R malfunction/warning messages
R failure of any systems
Driving characteristics may be impaired.
If you must continue to drive, do so with added
caution. Contact an authorized Mercedes-
Benz Center as soon as possible. :
To dim instrument cluster illumination
; Reset button
= To brighten instrument cluster
illumination
For information on changing the instrument
cluster settings, e.g. the language, see
(Y page 132). Activating the instrument cluster
The instrument cluster is activated when you
R open the driver’s door
R switch on the ignition
R press button :, ; or =
i Opening the driver’s door or pressing
button :, ; or = without switching on
the ignition activates the instrument
cluster illumination only for 30 seconds. 122
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Adjusting the instrument cluster
illumination
X To brighten illumination: Press and hold
button = until the desired level of
illumination is reached.
X To dim illumination: Press and hold
button : until the desired level of
illumination is reached.
i The 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.
i With the exterior lighting switched on, the
brightness of the switches in the center
console will also be adjusted when using
button : or =. Resetting trip odometer
X Make sure you are viewing the standard
display

(Y page 126) in the multifunction
display.
X Press and hold the reset button in the
instrument cluster

(Y page 122) until the
trip odometer is reset. Tachometer
The red marking on the tachometer
(Y

page 29) denotes excessive engine speed.
! Avoid driving at excessive engine speeds,
as it may result in serious engine damage
that is not covered by the Mercedes-Benz
Limited Warranty.
To help protect the engine, the fuel supply is
interrupted if the engine is operated within
the red marking. Control system
Introduction
The
control system is activated as soon as the
starter switch is in position 1 (Y page 79).
The control system enables you to call up
information about your vehicle and to 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 instrument cluster display,
and much more. G
Warning!
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.
The control system relays information to the
multifunction display. Multifunction steering wheel
The displays in the multifunction display and
the settings in the control system are
controlled by using the buttons on the
multifunction steering wheel. Control system
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:
Multifunction display
;
Press button
6
to answer a call
to dial8
to redial 8
~ to end a call
to reject an incoming call Press button
W
X
to select submenus in the
Settings menu
to set values
to set the volume Press button
?
to turn Voice Control System
on9
, see separate operating
instructions =
Press button
V
U
to select next or previous menu Press button briefly
&
*
to move within a menu
Within Audio/DVD
menu to
select previous or next track,
scene or stored station
Within Telephone menu to
switch to the phone book and
select a name or number Press and hold button
&
*
Within Audio/DVD
menu to
select previous or next track
with quick search or to select
previous or next station in
station list or wave band
Within Telephone menu to
start the quick search in the
phone book Press button
A
to turn Voice Control System
off9
, see separate operating
instructions Depending on the selected menu, pressing
the buttons on the multifunction steering
wheel will alter what appears in the
multifunction display.
The information available in the multifunction
display is arranged in menus and
accompanying functions and submenus.
The individual functions are then found within
the relevant menu (radio or CD operations
under Audio/DVD
menu, for example).
These functions serve to call up relevant
information or to customize the settings for
your vehicle.
It is helpful to think of the menus, and the
functions within each menu, as being
arranged in a circular pattern.
8 Function only available in telephone menu.
9 Vehicles without Voice Control System: Button without function. 124
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X
Press button V or U repeatedly to
pass through each menu one after the
other.
X Press button * or & repeatedly to
pass through each function display, one
after the other, in the current menu.
In the Settings menu, instead of functions,
you will find a number of submenus for calling
up and changing settings. For instructions on
using these submenus, see “Settings menu”
(Y page 130).
The number of menus available in the system
depends on which optional equipment is
installed in your vehicle. Multifunction display
:
Trip odometer
; Main odometer =
Transmission position/gear range
indicator
? Automatic transmission program mode
indicator
A Outside temperature or digital
speedometer
For more information on menus displayed in
the multifunction display, see “Menus and
submenus” (Y page 126). Control system
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Menus and submenus
i
The headings used in the menus table are
designed to facilitate navigation within the
system and are not necessarily identical to
those shown in the multifunction display.
The first function displayed in each menu
will automatically show you which part of
the system you are in. Function
:
Standard display
menu
(Y page 126) ;
Audio/DVD
menu (Y page 128) =
Navigation menu (Y page 129)
?
AIRMATIC/Compass
menu
(Y page 129) A
Distronic
menu (Y page 129) B
Vehicle status message
memory
10
menu (Y page 130) C
Settings menu (Y page 130)
D
Distance warning function
menu
(Y page 138) Function
E
Trip computer
menu (Y page 139) F
Telephone
menu (Y page 140) Standard display menu
Standard display
In the standard display, trip odometer
: and
main odometer ; appear in the
multifunction display.
X If you see another display, press button
V or U repeatedly until the standard
display appears.
X Press button & or * to select the
functions in the Standard display menu.
10 The vehicle status message memory menu is only displayed if there is a message stored. 126
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