2010 MERCEDES-BENZ R320 brake

circumstances described below. Disabling
the system will reduce vehicle stability in
driving maneuvers.
Do not switch off the ESP
®
when a spare
wheel is mounted.
To improve the vehicle’s traction, switch off
the ESP ®
. This allows the drive wheels to spin
and thus cut into surfaces for better grip, for
example
R when driving with snow chains
R in deep snow
R in sand or gravel G
Warning!
Switch on the ESP ®
immediately if the
aforementioned circumstances do not apply
anymore. Otherwise the ESP ®
will not
stabilize the vehicle when it is starting to skid
or a wheel is spinning.
When you switch off the ESP ®
,
R the ESP ®
does not stabilize the vehicle
R the engine output is not limited, which
allows the drive wheels to spin and thus cut
into surfaces for better grip
R the 4-ETS will still apply the brakes to a
spinning wheel
R the ESP ®
continues to operate when you
are braking
R the cruise control or the Distronic system
cannot be activated
R the cruise control or the Distronic system
switch off if activated
i When the ESP ®
is switched off and one or
more drive wheels are spinning, the ESP ®
warning lamp d in the instrument
cluster flashes. However, the ESP ®
will
then not stabilize the vehicle. X
With the engine running, press ESP ®
switch : until the ESP ®
warning lamp
d in the instrument cluster comes on.
The ESP ®
is switched off. G
Warning!
When the ESP ®
warning lamp d is
illuminated continuously, the ESP ®
is
switched off or is not operational due to a
malfunction. Vehicle stability in standard
driving maneuvers is reduced.
Adapt your speed and driving to the prevailing
road conditions and to the non-operating
status of the ESP ®
.
! Avoid spinning of a drive wheel for an
extended period with the ESP ®
switched
off. This may cause serious damage to the
drivetrain which is not covered by the
Mercedes-Benz Limited Warranty.
Switching on the ESP ® X
Press ESP ®
switch : until the ESP ®
warning lamp d in the instrument
cluster goes out.
You are now again in normal driving mode
with the ESP ®
switched on.
ESP ®
trailer stabilization If the trailer you are towing should begin to
sway, the rig can only be stabilized by
immediately applying the brakes hard.
Steering during this maneuver will not help to
stabilize the rig.66
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The ESP
®
will assist you in such situations.
The ESP ®
recognizes when the trailer starts
swaying and will apply the brakes to reduce
the
vehicle speed to a non-critical speed that
allows the vehicle-trailer combination to
stabilize.
The ESP ®
trailer stabilization is functional at
vehicle speeds above approximately 40 mph
(65 km/h) when the ESP ®
is switched on. G
Warning!
The system will not be able to assist when the
trailer jackknifes
R if the ESP ®
has switched off due to a
malfunction
R on wet or icy roads
R on roads with slippery surface
R in sand or gravel
Trailers with a high center of gravity may tip
over

before the system recognizes swaying of
the trailer. Anti-theft systems
Immobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. The
engine can be started by anyone with a valid
SmartKey that is left inside the vehicle.
Activating X
With SmartKey: Remove the SmartKey
from the starter switch.
X With KEYLESS-GO:
Turn off the engine and
open the driver’s door.
Deactivating X
Switch on the ignition.
i Starting the engine will also deactivate
the immobilizer. In the event that the engine cannot be
started (yet the vehicle’s battery is
charged), the system is not operational.
Contact an authorized Mercedes-Benz
Center

or call 1-800-FOR-MERCedes (in the
USA) or 1-800-387-0100 (in Canada). Anti-theft alarm system
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens
R a door
R the tailgate
R the hood
The alarm will stay on even if the activating
element, a door, for example, is closed
immediately.
The

alarm system will also be triggered when
R the vehicle is opened with the mechanical
key
R a door is opened from the inside
To cancel the alarm after it has been
triggered, see “Canceling the alarm”
(Y page 68).
i If the alarm stays on for more than
30 seconds, the Tele Aid system initiates a
call to the Response Center automatically.
The Tele Aid system will initiate the call
provided that
R you have subscribed to the Tele Aid
service
R the Tele Aid service has been activated
properly
R the necessary mobile phone, power
supply and GPS coverage are available Anti-theft systems
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X
Always remove the SmartKey from the
starter switch when the engine is not in
operation.
This will help to prevent accelerated vehicle
battery discharge or a completely
discharged vehicle battery.
If the SmartKey cannot be turned in the
starter switch, the vehicle battery may not be
sufficiently charged.
X Check the vehicle battery and charge it if
necessary.
or
X Get a jump start.
i If the SmartKey does not belong to the
vehicle, the SmartKey can be turned in the
starter switch. However, the ignition does
not switch on and the engine does not start. KEYLESS-GO
G
Observe Safety notes, see page 55.
Vehicles equipped with the KEYLESS-GO
feature are supplied with a SmartKey with
integrated KEYLESS-GO function and a
removable KEYLESS-GO start/stop button.
The KEYLESS-GO start/stop button must be
inserted in the starter switch and the
SmartKey present in the vehicle.
Pressing the KEYLESS-GO start/stop button
without depressing the brake pedal
corresponds to the various starter switch
positions (Y page 79).
Pressing the KEYLESS-GO start/stop button
with the brake pedal firmly depressed will
start the engine (Y page 110).
The KEYLESS-GO start/stop button can be
pulled out of the starter switch easily. You can
then insert the SmartKey into the starter
switch.
i The KEYLESS-GO start/stop button does
not need to be removed from the starter
switch when you leave the vehicle.
However, always take the SmartKey with
you when you leave the vehicle. As long as the SmartKey is in the vehicle, the vehicle’s
electrical systems can be switched on or
the engine can be started using the
KEYLESS-GO start/stop button.
:
KEYLESS-GO start/stop button
; Starter switch
X Insert the KEYLESS-GO start/stop button
into the starter switch (if not inserted
already).
X Make sure the automatic transmission is in
park position P.
X Do not depress the brake pedal. KEYLESS-GO start/stop button
=
USA only
? Canada only
Position 0 Before you press the KEYLESS-GO start/stop
button, the vehicle’s on-board electronics
have status 0 (as with SmartKey removed).80
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Position 1
X
Press the KEYLESS-GO start/stop button
once.
This supplies power for some electrical
consumers, such as radio functions.
i If you now press the KEYLESS-GO start/
stop button
R once more, the ignition (position 2) is
switched on
R twice more the power supply is again
switched off
Ignition (or position 2) X
Press the KEYLESS-GO start/stop button
twice.
This supplies power for all electrical
consumers.
All lamps (except low-beam headlamp
indicator lamp, high-beam headlamp
indicator lamp, and turn signal indicator
lamps unless activated) in the instrument
cluster
come on. If a lamp in the instrument
cluster fails to come on when the ignition
is switched on, have it checked and
replaced if necessary. If a lamp in the
instrument cluster remains on after
starting the engine or comes on while
driving, refer to “Lamps in instrument
cluster” ( Y page 299).
i If you now press the KEYLESS-GO start/
stop

button once, the power supply is again
switched off. Seats
Safety notes
G
Warning!
In order to avoid possible loss of vehicle
control
the following must be done before the
vehicle is put into motion:
R seat adjustment
R head restraint adjustment
R steering wheel adjustment
R rear view mirror adjustment
R fastening of seat belts G
Warning!
Do not adjust the driver’s seat while driving.
Adjusting the seat while driving could cause
the driver to lose control of the vehicle.
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 position that is as upright as
possible and seat belts are properly
positioned on the body. G
Warning!
Your seat must be adjusted so that you can
correctly fasten your seat belt.
Observe the following points:
R Adjust

the seat backrest until your arms are
slightly angled when holding the steering
wheel.
R Adjust the seat to a comfortable seating
position that still allows you to reach the
accelerator/brake pedal safely. The
position should be as far back as possible
with the driver still able to operate the
controls properly. Seats
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Single wipe
X
Press the combination switch briefly in
direction of arrow B to the resistance
point.
The windshield wipers wipe one time
without washer fluid.
Wiping with washer fluid X
Press the combination switch in direction
of arrow B past the resistance point.
The windshield wipers operate with washer
fluid.
i To prevent smears on the windshield or
noisy/chattering wiper blades, wipe with
washer fluid every now and then even when
it is raining.
For information on filling up the washer
reservoir, see “Washer system and headlamp
cleaning system” ( Y page 226).
For information on cleaning the headlamps
with washer fluid, see “Headlamp cleaning
system” ( Y page 101). Rear window wiper/washer
X Observe notes on page (Y page 103).
The rear window wiper engages automatically
when the automatic transmission is shifted
into reverse gear R with the windshield wipers
switched on. Combination switch
:
Rear window wiper switch
2 Wiping rear window with washer fluid 3
Intermittent wiping
4 Rear window wiper off
5 Wiping rear window with washer fluid
X Switch on the ignition.
X Turn rear window wiper switch : to the
desired position. Rear window wiper indicator
B appears in
the lower multifunction display when the rear
window wiper is activated.
For information on filling up the washer
reservoir, see “Washer system and headlamp
cleaning system” ( Y page 226). Problems with wipers
! If anything blocks the wipers (leaves,
snow, etc.), switch them off immediately.
For safety reasons, stop the vehicle in a
safe location, and
R -
remove the SmartKey from the starter
switch
or
- turn off the engine by pressing the
KEYLESS-GO start/stop button and
open the driver’s door (with the
driver’s door open, starter switch is in
position 0, same as with SmartKey
removed from starter switch)
- engage the parking brake
before attempting to remove any
blockage.
R Remove blockage.
R Turn the wipers on again. Wipers
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windows and the tilt/sliding panel are
closed completely.
X Press and hold the lock button on an
outside door handle again.
The roller sunblinds extend.
X Release the lock button on the outside door
handle to interrupt the closing procedure.
When tilt/sliding panel is closed:
X Press and hold the lock button on an
outside door handle ( Y page 73) until the
windows and the roller sunblinds are
closed completely.
X Release the lock button on the outside door
handle to interrupt the closing procedure. Driving and parking
Safety notes
G
Warning!
Make sure absolutely no objects are
obstructing the pedals’ range of movement.
Keep the driver’s footwell clear of all
obstacles. If there are any floormats or
carpets in the footwell, make sure the pedals
still have sufficient clearance.
During sudden driving or braking maneuvers
the objects could get caught between the
pedals. You could then no longer brake or
accelerate. This could lead to accidents and
injury. G
Warning!
With the engine not running, there is no power
assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the
vehicle. Adapt your driving accordingly. Starting the engine
G
Warning!
Inhalation of exhaust gas is hazardous to your
health. All exhaust gas contains carbon
monoxide (CO), and inhaling it can cause
unconsciousness and possible death.
Do not run the engine in confined areas (such
as a garage) which are not properly ventilated.
If you think that exhaust gas fumes are
entering the vehicle while driving, have the
cause determined and corrected
immediately. If you must drive under these
conditions, drive only with at least one
window fully open at all times.
Automatic transmission Gearshift pattern for automatic transmission
:
Button for selecting park position P
j Park position
k Reverse gear
i Neutral position
h Drive position
For more information on how to operate the
gear selector lever, see “Automatic
transmission” (Y page 115).
X Make sure the automatic transmission is in
park position P.
The transmission position indicator in the
multifunction display should be on P
(Y page 118). 110
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With SmartKey
X
Do not depress the accelerator pedal.
X Gasoline engine: Turn the SmartKey in the
starter switch to position 3 (Y page 79) and
release it.
The engine starts automatically.
X Diesel engine: Turn the SmartKey in the
starter switch to position 2 (Y page 79).
Preglow indicator lamp % in the
instrument cluster comes on.
X As soon as preglow indicator lamp %
goes out, turn the SmartKey in the starter
switch to position 3 and release it.
The engine starts automatically.
i If the engine is at operating temperature,
preglow indicator lamp % may not stay
on and you can start the engine without
preglowing.
With KEYLESS-GO G
Warning!
As long as the SmartKey is in your vehicle, the
vehicle can be started. Therefore, never leave
children unattended in the vehicle, as they
could otherwise accidentally start the engine.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Do
not leave children unattended in the vehicle,
or with access to an unlocked vehicle. A
child’s unsupervised access to a vehicle could
result in an accident and/or serious personal
injury.
You can start your vehicle without the
SmartKey in the starter switch using the
KEYLESS-GO start/stop button.
The SmartKey must be located in the vehicle. KEYLESS-GO start/stop button
:
USA only
; Canada only
X Make sure the KEYLESS-GO start/stop
button is inserted in the starter switch
(Y page 80).
i To start the engine with the SmartKey
instead of the KEYLESS-GO function,
remove the KEYLESS-GO start/stop button
from the starter switch. Proceed as
described in “With SmartKey”
(Y page 111).
X Depress the brake pedal during the starting
procedure.
X Do not depress the accelerator pedal.
X Gasoline engine: Press the KEYLESS-GO
start/stop button once.
The engine starts automatically.
X Diesel engine: Press the KEYLESS-GO
start/stop button once.
The engine preglows and starts
automatically.
i If the engine is at operating temperature,
the time the engine needs to preglow is
reduced.
Starting difficulties !
Remember that extended starting
attempts can drain the battery. Driving and parking
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The engine does not start. You can hear
the starter.
There could be a malfunction in the engine
electronics or in the fuel supply system.
Carry out the following steps:
X
If you are starting the engine with the
SmartKey:
Turn the SmartKey in the starter
switch to position 0 and repeat the starting
procedure.
X If you are starting the engine with KEYLESS-
GO: Close any doors that may be open to
allow

for better detection of the SmartKey.
or
X Remove the KEYLESS-GO start/stop
button from the starter switch.
X Start the engine with the SmartKey as radio
signals from another source may be
interfering with the KEYLESS-GO function.
X Repeat the starting procedure.
If the engine does not start after several
starting attempts:
X Contact an authorized Mercedes-Benz
Center or call Roadside Assistance.
The engine does not start. You cannot
hear the starter.
The battery may not be charged sufficiently.
X Get a jump start (Y page 336).
If the engine will not start despite a jump
start:
X Contact an authorized Mercedes-Benz
Center or call Roadside Assistance.
The starter has been exposed to excessive
temperatures.
X Let the starter cool for about 2 minutes.
X Repeat the starting procedure.
If the engine does not start after several
starting attempts:
X Contact an authorized Mercedes-Benz
Center or call Roadside Assistance. Driving off
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.
! Do not run a cold engine at high engine
speeds. Running a cold engine at high
engine speeds may shorten the service life
of the engine. This is not covered by the
Mercedes-Benz Limited Warranty.
! If an acoustic warning sounds and the
message Release Parking Brake
appears in the multifunction display when
driving off, you have forgotten to release
the parking brake.
Release the parking brake.
! Avoid spinning of a drive wheel. This may
cause serious damage to the drivetrain
which is not covered by the Mercedes-Benz
Limited Warranty.
! Simultaneously depressing the
accelerator pedal and applying the brakes
reduces engine performance and causes
premature brake and drivetrain wear which
is not covered by the Mercedes-Benz
Limited Warranty.
i Once the vehicle is in motion, the
automatic central locking function engages
and the locking knobs in the doors move
down.
The automatic central locking function can
be switched off( Y page 137).
Automatic transmission G
Warning!
It is dangerous to shift the automatic
transmission
out of park position P or neutral
position N if the engine speed is higher than 112
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