2010 MERCEDES-BENZ R320 key

i
If a door remains open, the interior lamps
go out automatically after approximately
5 minutes when the SmartKey is removed
or in starter switch position 0.
X Deactivating: Press button ~.
Button ~ engages.
Manual control !
An interior lamp switched on manually
does not go out automatically.
Leaving an interior lamp switched on for an
extended period of time with the engine
turned off could result in a discharged
battery.
X Switching front interior lighting on/
off: Press switch c.
X Switching rear interior lighting on/off:
Press switch v.
X Switching front reading lamps on/off:
Press respective switch p.
Emergency lighting The interior lighting comes on automatically
if the vehicle is involved in an accident.
Switching off:
X
Press button ~.
or
X Press hazard warning flasher switch
(Y page 101).
or
X Unlock the vehicle with the SmartKey. Interior lighting in the rear
! An interior lamp switched on manually
does not go out automatically.
Leaving an interior lamp switched on for an
extended period of time with the engine
turned off could result in a discharged
battery. Second-row reading lamps
X
Switching rear reading lamps on/off:
Press second-row reading lamp : where
indicated by the arrow.
Third-row reading lamps and interior
lighting :
p Right third-row reading lamp on/off
; p Left third-row reading lamp on/off
= Left third-row reading lamp
? Rear interior lighting
A Right third-row reading lamp
i The rear interior lighting is switched on
and off using the button on the front
overhead control panel ( Y page 102). Wipers
Notes
! Do not operate the wipers when the
windshield/rear window is dry. Dust that Wipers
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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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If the windshield wipers fail to function at
all with the combination switch in position
Ä or Å,
R
set the combination switch to the next
higher wiper speed
R have the windshield wipers checked at
the nearest authorized Mercedes-Benz
Center Power windows
Opening and closing
The door windows and the hinged quarter
windows are opened and closed electrically.
The switches for all door windows and the
hinged quarter windows are located on the
driver’s door control panel. The switches for
the respective door windows are located on
the front passenger door and the rear doors.
The
hinged quarter windows can be operated
from the driver’s seat only.
i Operating the rear door windows from
the rear is not possible when you activate
the override switch (Y page 62). G
Observe Safety notes, see page 55. G
Warning!
When opening or closing the windows, make
sure there is no danger of anyone being
harmed by the opening/closing procedure.
The door windows are equipped with the
express operation and automatic reversal
function.

If in express operation mode a door
window encounters an obstruction that
blocks its path, the automatic reversal
function will stop the door window and open
it slightly.
The door windows operate differently when
the switch is pulled and held. See the “Closing
when a door window is blocked” section in
this chapter for details.
The closing of a door window can be
immediately halted by releasing the switch or, if the switch was pulled past the resistance
point and released, by either pressing or
pulling the respective switch.
The

closing of the hinged quarter windows can
be immediately halted by pressing or pulling
the switch.
If a window encounters an obstruction that
blocks its path in a circumstance where you
are closing the windows by pressing and
holding button & on the SmartKey or by
pressing and holding the lock button (vehicles
with KEYLESS-GO) on an outside door handle,
the automatic reversal function will not
operate.
Activate the override switch when children
are riding in the back seats of the vehicle. The
children may otherwise injure themselves,
e.g. by becoming trapped in the window
opening. G
Warning!
Do not keep any part of your body up against
the
window pane when opening a window. The
downward motion of the pane may pull that
part of your body down between the window
pane and the door frame and trap it there. If
there is a risk of entrapment, release the
switch and pull it to close the window.
i You can also open or close the windows
using the SmartKey, see “Summer opening
feature” ( Y page 108) and “Convenience
closing feature” ( Y page 108).
i After switching off the ignition or
removing the SmartKey from the starter
switch, you can operate the windows until
you open the driver’s or front passenger
door. If no door was opened you can
operate the windows for up to 5 minutes. 106
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Each door window must be synchronized
separately.
X
Close all doors.
X Switch on the ignition.
X Pull and hold switch :, ;, = or ?
(Y page 107) until the respective door
window is closed.
The door window opens again slightly.
X Pull and hold the respective switch once
more
immediately until the door window is
closed completely.
X Hold the respective switch for
approximately 1 second.
The door window is synchronized. Summer opening feature
When
the weather is warm, you can ventilate
the vehicle before driving off by
simultaneously
R opening the door windows
R opening the hinged quarter windows
R opening the tilt/sliding sunroof
R opening the panorama roof with power tilt/
sliding panel and roller sunblinds
The summer opening feature can only be
activated via the remote control of the
SmartKey. The SmartKey must be in close
proximity to the driver’s outside door handle.
X Aim the transmitter eye of the SmartKey at
the driver’s outside door handle.
Vehicles without panorama roof with
power tilt/sliding panel X
Press and hold button % on the
SmartKey until the windows and the tilt/
sliding sunroof have reached the desired
position.
The vehicle unlocks.
X Release button % on the SmartKey to
interrupt the opening procedure. Vehicles with panorama roof with
power tilt/sliding panel When roller sunblinds are extended:
X
Press and hold button % on the
SmartKey.
The vehicle unlocks.
The

windows open and the roller sunblinds
begin to retract after approximately
1 second.
X With the windows opened and the roller
sunblinds fully retracted, press and hold
button % on the SmartKey again.
The tilt/sliding panel opens.
X Release button % on the SmartKey to
interrupt the opening procedure.
When roller sunblinds are retracted:
X Press and hold button % on the
SmartKey.
The vehicle unlocks.
The windows and the tilt/sliding panel
opens after approximately 1 second.
X Release button % on the SmartKey to
interrupt the opening procedure. Convenience closing feature
When locking the vehicle, you can
simultaneously close
R the door windows
R the hinged quarter windows
R the tilt/sliding sunroof
R the panorama roof with power tilt/sliding
panel
Afterward, you can extend the roller
sunblinds of the panorama roof with power
tilt/sliding panel. G
Warning!
When closing the windows and the tilt/sliding
sunroof or panorama roof with power tilt/
sliding

panel, make sure there is no danger of 108
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anyone being harmed by the closing
procedure.
If
potential danger exists, proceed as follows:
R Release button & to stop the closing
procedure. To open, press and hold button
%. To continue the closing procedure
after making sure that there is no danger of
anyone being harmed by the closing
procedure, press and hold button &.
Vehicles with KEYLESS-GO:
R Release the lock button on the outside door
handle to stop the closing procedure.
R Immediately pull on the same outside door
handle and hold firmly. The windows and
the tilt/sliding sunroof or panorama roof
with power tilt/sliding panel will open for
as long as the door handle is held but the
door not opened.
With SmartKey The SmartKey must be in close proximity to
the driver’s outside door handle.
X
Aim transmitter eye of the SmartKey at the
driver’s outside door handle.
Vehicles without panorama roof with
power tilt/sliding panel
X Press and hold button & on the
SmartKey until the windows and the tilt/
sliding sunroof are closed completely.
X Release button & on the SmartKey to
interrupt the closing procedure. Vehicles with panorama roof with power
tilt/sliding panel
When tilt/sliding panel is opened:
X
Press and hold button & on the
SmartKey until the windows and the tilt/
sliding panel are closed completely.
X Press and hold button & on the
SmartKey again.
The roller sunblinds extend.
X Release button & on the SmartKey to
interrupt the closing procedure.
When tilt/sliding panel is closed:
X Press and hold button & on the
SmartKey until the windows and the roller
sunblinds are closed completely.
X Release button & on the SmartKey to
interrupt the closing procedure.
With KEYLESS-GO The SmartKey with KEYLESS-GO must be
located outside the vehicle within
approximately 3 ft (1 m) of a door.
X
Close all doors.
Vehicles without panorama roof with
power tilt/sliding panel
X Press and hold the lock button on an
outside door handle

(Y page 73) until the
windows and the tilt/sliding sunroof are
closed completely.
X Release the lock button on the outside door
handle to interrupt the closing procedure.
Vehicles with panorama roof with power
tilt/sliding panel
When tilt/sliding panel is opened:
X Press and hold the lock button on an
outside door handle

(Y page 73) until the Power windows
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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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Parking
G
Warning!
Do not park this vehicle in areas where
combustible materials such as grass, hay or
leaves can come into contact with the hot
exhaust system. These materials could be
ignited and cause a vehicle fire.
Vehicle movement may result in serious
personal injury or damage to the vehicle or
vehicle drivetrain. Therefore, always do the
following before turning off the engine and
leaving the vehicle:
R Keep right foot on the brake pedal.
R Engage the parking brake.
R Shift the automatic transmission into park
position P.
R Slowly release the brake pedal.
R When parked on an incline, always turn the
front wheels towards the road curb.
R Turn the SmartKey in the starter switch to
position 0 and remove the SmartKey from
the starter switch, or press the KEYLESS-
GO start/stop button.
R Take the SmartKey with you and lock the
vehicle when leaving.
Parking brake G
Warning!
Engaging the parking brake while the vehicle
is in motion can cause the rear wheels to lock
up. You could lose control of the vehicle and
cause an accident. In addition, the vehicle’s
brake lights do not light up when the parking
brake is engaged. G
Warning!
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it with
you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. Children could
release the parking brake and/or shift the automatic transmission out of park position
P, either of which could result in an accident
and/or serious personal injury.
X
Releasing: Pull on release handle :.
When the ignition is switched on or the
engine is running, the brake warning lamp
$ (USA only) or J (Canada only) in
the instrument cluster goes out.
X Engaging: Step on parking brake
pedal ; firmly.
When the engine is running, the brake
warning lamp $ (USA only) or J
(Canada only) in the instrument cluster
comes on. Turning off the engine
G
Warning!
Do not turn off the engine before the vehicle
has come to a complete stop. 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.
i If the engine cannot be turned off as
described, see “Emergency engine
shutdown” ( Y page 342).
X Shift the automatic transmission into park
position P.
X Engage the parking brake. 114
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