2010 MERCEDES-BENZ R320 run flat

Gross Vehicle Weight
see GVW
Gross Vehicle Weight Rating
see GVWR
GTW (Gross Trailer Weight) ..............249
GVW (Gross Vehicle Weight) ............249
GVWR (Gross Vehicle Weight
Rating) ................................................ 249H
Halogen headlamps see Headlamps


Hard plastic trim items, cleaning ....267
Hazard warning flasher ....................101
Headlamp cleaning system .............. 101
Headlamps
Active Bi-Xenon headlamps ............. 97
Automatic headlamp mode .............. 98
Bi-Xenon .................................. 97, 313
Cleaning lenses ............................. 265
Cleaning system ............................ 101
Daytime running lamp mode ............99
Delayed shut-off ............................ 135
Halogen ......................................... 313
High-beam flasher .........................101
High-beam headlamps ...................100
Low-beam headlamps ...................... 98
Replacing bulbs ............................. 312
Switch .............................................. 97
Headliner, cleaning and care of .......267
Head restraints .................................... 81
Adjustment ................................ 81, 83
NECK-PRO active front head
restraints ......................................... 53
NECK-PRO active front head
restraints, resetting ....................... 310
Heated steering wheel ........................93
Height adjustment
Seat belt outlet ................................ 50
Seats ............................................... 81
Vehicle level control ...................... 154
High-beam flasher ............................. 101
High-beam headlamps ..............100, 313
Indicator lamp .................................. 29
Hill-start assist system ..................... 153
Hinged quarter windows .................. 107Hood ...................................................
222
Messages in the multifunction
display

........................................... 288
Hooks ................................................. 189
Horn ...................................................... 27
HVAC see Climate control system
Hydroplaning ..................................... 255 I
Identification labels ..........................344
Identification number, vehicle
(VIN) ................................................... 345
Ignition ................................... 79, 80, 111
Immobilizer .......................................... 67
Indicator lamps see Lamps, indicator and warning


Infant and child restraint systems
see Children in the vehicle
Inflation pressure
see Tires, Inflation pressure
Infrared reflecting windshield .........217
Inside door handle .............................. 74
Instrument cluster ......................28, 122
Illumination .................................... 123
Lamps ............................................ 299
Multifunction display .....................125
Instrument lighting
see Instrument cluster, Illumination
Instrument panel
see Instrument cluster
Instruments and controls
see Cockpit
Interior lighting
Delayed shut-off ............................ 136
Emergency lighting ........................ 103
Front .............................................. 102
Front reading lamps ....................... 102
Rear ............................................... 103
Rear reading lamps ........................ 103
Interior rear view mirror .....................94
Auto-dimming rear view mirrors ....... 94
Interior storage spaces
see Storage compartments
Intermittent wiping
Rain sensor .................................... 10410
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J
Jack ..................................................... 272
Jump starting ..................................... 336K
Key, Mechanical
Loss of ............................................. 73
Unlocking/locking manually .......... 308
Key, SmartKey
Battery check lamp .......................... 73
Checking batteries ........................... 73
Factory setting
........................... 71, 72
Global locking (KEYLESS-
GO) .................................................. 73
Global locking (SmartKey) ................ 71
Global unlocking (KEYLESS-
GO) ............................................ 72, 73
Global unlocking
(SmartKey) ....................................... 71
Important notes on KEYLESS-GO .....72
Locking/unlocking ........................... 70
Loss of ............................................. 73
Messages in the multifunction
display ........................................... 289
Opening and closing the power
tilt/sliding sunroof or the
panorama roof ............................... 108
Opening and closing the windows . 108
Remote control ................................ 70
Replacing batteries ........................ 310
Restoring to factory setting ....... 71, 73
Selective setting ........................ 71, 73
Starter switch positions ................... 79
KEYLESS-GO
Starter switch positions ................... 80
Kickdown ........................................... 119
Kilopascal (air pressure unit) ...........249 L
Labels
Certification ................................... 344
Emission control information

......... 345 Tire and Loading Information
placard

........................................... 236
Tire inflation pressure ....................230
Lamps, exterior
Exterior lamp switch ........................ 97
Front .............................................. 313
Messages in the multifunction
display ........................................... 295
Rear ............................................... 313
Switching on/off .............................. 97
Lamps, indicator and warning
ABS .......................................... 28, 300
Brakes ..................................... 28, 301
Distance warning
lamp ........................ 28, 147, 152, 304
Engine malfunction .................. 29, 305
ESP ®
........................................ 28, 303
Fog lamps ........................................ 99
Front passenger front air bag off
(Canada only) .......................... 45, 307
Front passenger front air bag off
(USA only) ................................ 42, 307
Fuel tank reserve ..................... 29, 305
High-beam headlamps .............29, 100
Instrument cluster ...................28, 299
Low-beam headlamps ................ 29, 98
Low tire pressure/TPMS
malfunction telltale .................. 28, 306
Seat belt telltale ................29, 51, 302
SRS .................................... 29, 36, 303
Turn signals ..................................... 28
Language, selecting ..........................133
LATCH-type child seat anchors see Children in the vehicle
License plate lamps
Messages in the multifunction
display ........................................... 296
Replacing bulbs ............................. 314
Light alloy wheels, cleaning .............267
Lighter see Cigarette lighter
Lighting ................................................ 97
Daytime running lamp mode ............99
Exterior ............................................ 97
Interior ........................................... 102
Limp-home mode .............................. 121
Load index (tires) ......................245, 249 Index
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Reminder, Seat belt
see Seat belts, Telltale
Remote control
see Key, SmartKey
Remote door unlock (Tele Aid) .........212
Replacing bulbs ................................. 312
Reporting safety defects .................... 23
Research Octane Number see RON
Reserve fuel
Messages in the multifunction
display ........................................... 293
Warning lamp ................................... 29
Reset button ................................ 28, 122
Reset tool (NECK-PRO active front
head restraints) ................................. 310
Restraint systems see Occupant safety
Rims ........................................... 250, 347
Roadside Assistance ...................21, 210
Roller sunblinds ................................. 184
RON (Research Octane Number) ..... 353
Roof rack ............................................ 187
Rubber parts, cleaning ...................... 267
Run-flat tires see MOExtended tires S
Safety Driving safety systems ..................... 63
Occupant safety ...............................

36
Reporting defects ............................ 23
Safety belts
see Seat belts
Seat belt force limiter ......................... 52
Seat belts ............................................. 47
Adjustment function ........................51
Children in the vehicle .....................55
Cleaning ......................................... 267
Fastening ......................................... 49
Height adjustment ...........................50
Proper use of ................................... 48
Safety guidelines ............................. 39
Safety notes ..................................... 47
Telltale ..................................... 29, 302
Seat heating ......................................... 91
Seating capacity ................................ 237Seats .....................................................

81
Adjustment ...................................... 81
Easy-entry/exit feature ....................92
Folding (expanding cargo volume) . 189
Heating ............................................ 91
Memory function .............................. 96
Multicontour seat ............................ 90
Rear seats ........................................ 86
Ventilation ....................................... 90
Securing cargo
Cargo tie-down rings ...................... 188
Selective setting
see Key, SmartKey
Selector lever
see Gear selector lever
Self-test
BabySmart™ .................................... 47
OCS (Occupant Classification
System) ........................................... 45
Tele Aid .......................................... 208
Service
see Maintenance
Service, parts .................................... 344
Service and warranty information .....20
Service intervals see Maintenance System, Service
indicator message
Service life (tires) .............................. 241
Settings Factory setting (KEYLESS-GO) ......... 72
Factory setting (SmartKey) ..............71
Memory function .............................. 96
Menu ............................................. 130
Selective setting (KEYLESS-GO) ....... 73
Selective setting (SmartKey) ............71
Side impact air bags ...........................40
Side marker lamps
Cleaning lenses ............................. 265
Messages in the multifunction
display ........................................... 295
Sidewall (tires) .................................. 250
Side windows see Power windows
SmartKey
see Key, SmartKey
SmartKey with KEYLESS-GO
see Key, SmartKey Index
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If the vehicle was previously locked with the
central locking switch
R
and the SmartKey is set to factory settings,
the complete vehicle is unlocked when a
front door is opened from the inside
R and the SmartKey is set to selective
settings, only the front door opened from
the inside is unlocked
If the vehicle has been locked centrally with
the SmartKey or with KEYLESS-GO, it will not
unlock using the central unlocking switch. Tailgate
G
Warning!
Make sure the tailgate is closed when the
engine is running and while driving. Among
other dangers, deadly carbon monoxide (CO)
gases may enter vehicle interior resulting in
unconsciousness and death.
A minimum height clearance of 7.20 ft
(2.20 m) is required to open the tailgate.
Opening the tailgate from the outside X
Pull on handle :.
In vehicles without KEYLESS-GO: The
vehicle must be unlocked.
X Pull tailgate upwards to open. Closing the tailgate from the outside G
Observe Safety notes, see page 55. G
Warning!
To prevent possible personal injury, always
keep hands and fingers away from the cargo
compartment opening when closing the
tailgate. Be especially careful when small
children are around. X
Lower tailgate by pulling firmly on
handles :.
X Close tailgate with hands placed flat on it.
Once the tailgate touches the latch, the
tailgate will pull itself shut automatically.
Opening the tailgate from the inside G
Warning!
Do not leave children unattended in the
vehicle. Children could open the tailgate from
the inside, which could result in an accident
and/or serious personal injury.
! Always make sure there is sufficient
overhead clearance.
You can unlock the tailgate from the third-row
seats and then open it manually. Locking and unlocking
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Leaving the engine running and the fuel
filler cap open can cause the yellow fuel
tank
reserve warning lamp to flash and the
malfunction indicator lamp ! (USA
only) or ; (Canada only) to illuminate.
For more information, see also “Practical
hints” (Y page 305).
X Remove the SmartKey from the starter
switch.
KEYLESS-GO: Open the driver’s door (this
puts the starter switch in position 0, same
as with the SmartKey removed from the
starter switch). The driver’s door then can
be closed again.
X Opening: Press fuel filler flap : at the
point indicated by the arrow.
X Turn fuel filler cap ; counterclockwise.
X Take off fuel filler cap ;.
! The fuel filler cap is tethered to the fuel
filler neck. Do not drop the cap. It could
damage the vehicle paint finish.
X Set fuel filler cap ; on fuel filler flap :.
X Fully insert filler nozzle unit and refuel.
X Only fill your tank until the filler nozzle unit
cuts out – do not top off or overfill .
X Closing: Turn fuel filler cap ; clockwise
until it audibly engages.
X Close fuel filler flap :.
Low outside temperatures (diesel
engine) !
Do not fill the tank with gasoline. Do not
blend

diesel fuel with gasoline or kerosene.
The fuel system and engine will otherwise
be damaged, which is not covered by the
Mercedes-Benz Limited Warranty.
To prevent malfunctions, diesel fuel with
improved cold flow characteristics is offered
in the winter months. Check with your fuel
retailer. Check regularly and before a long trip
For information on quantities and
requirements

of operating agents, see “Fuels,
coolants, lubricants, etc.” (Y page 350).
Check the following:
R Engine oil level ( Y page 224)
R Tire inflation pressure ( Y page 230)
R Coolant level ( Y page 225)
R Vehicle lighting ( Y page 313)
R Washer system and headlamp cleaning
system (Y page 226)
R Brake fluid ( Y page 227) Engine compartment
Hood
G
Warning!
Do not pull the release lever while the vehicle
is in motion. Otherwise the hood could be
forced open by passing air flow.
This

could cause the hood to come loose and
injure you and/or others.
Opening G
Warning!
Do not open the hood when the engine is
overheated. You could be seriously injured.
Observe the coolant temperature display to
determine whether the engine may be
overheated. If you see flames or smoke
coming from the engine compartment, move
away from the vehicle. Wait until the engine
has cooled. If necessary, call the fire
department. G
Warning!
You could be injured when the hood is open –
even when the engine is turned off.
Parts of the engine can become very hot. To
prevent

burns, let the engine cool completely
before touching any components on the 222
Engine compartment
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The recommended tire inflation pressures
for your vehicle can be found on
Rthe Tire and Loading Information placard
located on the driver’s door B-pillar
(Y page 236)
R the tire inflation pressure label on the
inside of the fuel filler flap
The tire inflation pressures are not listed in
the Operator’s Manual. G
Warning!
The tire pressure loss warning system does
not
provide a warning for wrongly selected tire
inflation pressures. Always adjust tire
inflation pressure according to the Tire and
Loading Information placard on the driver’s
door B-pillar or on the tire inflation pressure
label located on the inside of the fuel filler flap.
The tire pressure loss warning system does
not replace regular checks of the tire inflation
pressures since a gradual pressure loss in
more than one tire cannot be detected by the
tire pressure loss warning system.
The tire pressure loss warning system is not
able to issue a warning due to a sudden
dramatic loss of tire inflation pressure (e.g.
tire blowout caused by a foreign object). In
this case bring the vehicle to a halt by carefully
applying the brakes and avoiding abrupt
steering maneuvers.
Restarting the tire pressure loss warning
system
The tire pressure loss warning system must
be restarted in the following situations:
R after you have changed the tire inflation
pressure
R after you have replaced the wheels or tires
R after you have installed new wheels or tires
X Using the Tire and Loading Information
placard on the driver’s door

B-pillar or, if
available, the tire inflation pressure label on
the inside of the fuel filler flap, make sure
the tire inflation pressure of all four tires is
correct. G
Warning!
The tire pressure loss warning system can
only
warn you in a reliable manner if you have
set the correct tire inflation pressures for
each tire.
If an incorrect tire inflation pressure was set,
the system will monitor the pressure
according to the incorrect value.
X Switch on the ignition.
X Make sure the standard display appears in
the multifunction display

(Y page 126).
X Press button * or & on the
multifunction steering wheel repeatedly
until the following message appears in the
multifunction display:
Run Flat Indicator
Active
Menu: R-Button
X Press the reset button (Y page 122).
The following message will appear in the
multifunction display:
Restart
Run Flat Indicator?
X If you wish to confirm: Press button
W.
The following message will appear in the
multifunction display:
Run Flat Indicator
Restarted
After a certain “learning phase”, the tire
pressure loss warning system checks the
set pressure values for all four tires.
X If you wish to cancel:
Press button X.
Advanced Tire Pressure Monitoring
System (Advanced TPMS), (USA only) Your vehicle is equipped with the Advanced
Tire Pressure Monitoring System (Advanced
TPMS).

It measures the tire inflation pressure
in the vehicle’s tires and issues warnings in
case of pressure loss in one or more of the
tires. 232
Tires and wheels
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You may only use the MOExtended system in
conjunction with the tire pressure loss
warning system (
Y page 231) or the
Advanced TPMS (Y page 232).
i Vehicles with MOExtended system are
not factory-equipped with a TIREFIT kit.
When
retrofitting with tires that do not have
run-flat characteristics, e.g. winter tires,
you should also equip your vehicle with a
TIREFIT kit. TIREFIT kits are available at any
authorized Mercedes-Benz Center.
For information on driving in case of pressure
loss in one or more tires (emergency mode),
see the “Practical Hints” section
(Y page 330). Tire care and maintenance
G
Warning!
Regularly check the tires for damage.
Damaged tires can cause tire inflation
pressure loss. As a result, you could lose
control of your vehicle.
Worn,

old tires can cause accidents. If the tire
tread is worn to minimum tread depth, or if
the tires have sustained damage, replace
them.
Check the tire inflation pressure at least once
a month. For more information on checking
tire inflation pressure, see “Recommended
tire inflation pressure” ( Y page 228).
Tire inspection Every time you check the tire inflation
pressure, you should also inspect your tires
for the following:
R
excessive treadwear ( Y page 241)
R cord or fabric showing through the tire’s
rubber
R bumps,

bulges, cuts, cracks or splits in the
tread or side of the tire
Replace the tire if you find any of the above
conditions. Make sure you also inspect the spare tire
periodically

for condition and inflation. Spare
tires will age and become worn over time even
if never used, and thus should be inspected
and replaced when necessary.
Life of tire G
Warning!
Tires and spare tire should be replaced after
6 years, regardless of the remaining tread.
The service life of a tire is dependent upon
varying factors including but not limited to:
R Driving style
R Tire inflation pressure
R Distance driven
Tread depth G
Warning!
Although the applicable federal motor vehicle
safety laws consider a tire to be worn when
the

treadwear indicators (TWI) become visible
at approximately 1
/ 16 in (1.6 mm), we
recommend that you do not allow your tires
to wear down to that level. As tread depth
approaches 1
/ 8 in (3 mm), the adhesion
properties on a wet road are sharply reduced.
Depending upon the weather and/or road
surface (conditions), the tire traction varies
widely.
Do not allow your tires to wear down too far.
Adhesion properties on wet roads are sharply
reduced at tread depths of less than 1
/ 8 in
(3 mm).
Treadwear indicators (TWI) are required by
law. These indicators are located in six places
on the tread circumference and become
visible at a tread depth of approximately
1 / 16 in (1.6 mm), at which point the tire is
considered worn and should be replaced.
The recommended minimum tire tread depth
for summer tires is 1
/ 8 in (3 mm). The Tires and wheels
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bring road-salt-impaired braking efficiency
back to normal.
If the vehicle is parked after being driven on
salt-treated roads, the braking efficiency
should be tested as soon as possible after
driving is resumed.
G
Warning!
Make sure not to endanger any other road
users when carrying out these braking
maneuvers. Driving instructions
Drive sensibly – save fuel
To save fuel you should:
R Keep tires at the recommended inflation
pressures.
R Remove unnecessary loads.
R Remove carriers when not in use.
R Allow engine to warm up under low load
use.
R Avoid frequent acceleration and
deceleration.
R Have all maintenance work performed at
the intervals specified in the Maintenance
Booklet and as required by the
Maintenance system. Contact an
authorized Mercedes-Benz Center.
Fuel
consumption is also increased by driving
in cold weather, in stop-and-go traffic, on
short trips and in mountainous areas. Drinking and driving
G
Warning!
Drinking and driving and/or taking drugs and
driving are very dangerous combinations.
Even a small amount of alcohol or drugs can
affect your reflexes, perceptions and
judgment. The possibility of a serious or even fatal
accident

are greatly increased when you drink
or take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or
taking drugs. Pedals
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 that 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. Power assistance
G
Warning!
There is no power assistance for the steering
and
the brake when the engine is not running.
Steering and braking requires significantly
more effort and you could lose control of the
vehicle and cause an accident as a result.
Do not turn off the engine while the vehicle is
in motion. Brakes
Downhill grades !
When driving down long and steep
grades, relieve the load on the brakes by
shifting into a lower gear to use the
engine’s

braking power. This helps prevent
overheating of the brakes and reduces
wear. Driving instructions
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