2010 MERCEDES-BENZ R320 oil temperature

SmartKey with KEYLESS-GO
..........289
SRS ................................................ 287
Tailgate
.......................................... 288
Tail lamps ...................................... 297
Tele Aid .......................................... 287
Tire inflation pressure ............283, 298
Tire pressure monitor .................... 283
Tires ...................................... 283, 298
Trailer brake lamps ........................297
Trailer tail lamps ............................ 297
Trailer turn signal lamps ................297
Turn signals ................................... 298
Washer fluid ................................... 290
Multifunction steering wheel
Adjustment ...................................... 91
Buttons .......................................... 123
Cleaning ......................................... 267
Easy-entry/exit feature ...........92, 137
Gearshift control ............................ 121
Heating ............................................ 93
Memory function .............................. 96
Overview .......................................... 30N
Navigation menu ............................... 129
Navigation system see Separate operating instructions


NECK-PRO active front head
restraints ............................................. 53
Resetting ....................................... 310
Nets, parcel ....................................... 188
Night security illumination .............. 135
Normal occupant weight .................. 250
Number, vehicle identification
(VIN) ................................................... 345O
Occupant Classification System see

OCS (Occupant Classification
System)
Occupant distribution ....................... 250
Occupant safety Air bags ........................................... 37
BabySmart™ .................................... 45
Children and air bags ....................... 37
Children in the vehicle .....................55Child seat anchors – LATCH-type
....60
Fastening the seat belts ...................
49
Front passenger front air bag off
indicator lamp (Canada
only) ........................................ 45, 307
Front passenger front air bag off
indicator lamp (USA only) ........42, 307
Infant and child restraint systems .... 55
Introduction ..................................... 36
OCS (Occupant Classification
System) ........................................... 42
PRE-SAFE ®
....................................... 52
Seat belts .................................. 39, 47
OCS (Occupant Classification
System) ................................................ 42
Self-test ........................................... 45
Odometer ........................................... 125
Oil, oil level see Engine oil
On-board computer
see Control system
One-touch gearshifting .....................120
Operating safety .................................. 22
Ornamental moldings, cleaning .......265
Outside temperature see Displays
Overhead control panel ......................32 P
Paintwork, cleaning ..........................264
Paintwork code ................................. 345
Panic alarm .......................................... 62
Panorama roof with power tilt/
sliding panel ...................................... 184
Cleaning .........................................

266
Operation ....................................... 184
Roller sunblinds ............................. 184
Synchronizing ................................ 186
Parcel nets ......................................... 188
Parking ............................................... 114
Parktronic system ..........................156
Parking brake ............................ 114, 255
Messages in the multifunction
display ........................................... 286
Parking position
Exterior rear view mirrors ................ 95
Transmission position .................... 118 Index
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i
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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For more information on engine oil, see
“Fuels, coolants, lubricants etc.”
(Y page 350).
For information on messages in the
multifunction display concerning engine oil,
see the “Practical hints” section
(Y page 293).
Adding engine oil
!
Only use approved engine oils and oil
filters required for vehicles with
Maintenance System. For a listing of
approved engine oils and oil filters, contact
an authorized Mercedes-Benz Center or
visit www.mbusa.com (USA only).
The following will result in engine or
emission control system damage not
covered by the Mercedes-Benz Limited
Warranty:
R Using engine oils and oil filters of
specification other than those expressly
required for the Maintenance System.
R Changing of oil and oil filter at change
intervals longer than those called for by
the Maintenance System.
R Using any oil additives. Example illustration: R 350
X
Unscrew filler cap : from filler neck.
X Add engine oil as required. Be careful not
to overfill with oil.
Be careful not to spill any oil when adding.
Avoid environmental damage caused by oil
entering the ground or water. !
Excess oil must be siphoned or drained
off. It could cause damage to the engine
and emission control system not covered
by the Mercedes-Benz Limited Warranty.
X Screw filler cap : back on filler neck.
For more information on engine oil, see the
“Technical data” section ( Y page 350) and
(Y page 352). Transmission fluid level
The transmission fluid level does not need to
be checked. If you notice transmission fluid
loss or gearshifting malfunctions, have an
authorized Mercedes-Benz Center check the
transmission. Coolant level
The engine coolant is a mixture of water and
anticorrosion/antifreeze.
When checking the coolant level, the vehicle
must be parked on level ground, and the
coolant temperature must be below 158‡
(70†). G
Warning!
In order to avoid any potentially serious burns:
R Use extreme caution when opening the
hood if there are any signs of steam or
coolant leaking from the cooling system, or
if the coolant temperature display indicates
that the coolant is overheated.
R Do not remove the cap on the coolant
expansion tank if the coolant temperature
is above 158‡ (70†). Allow the engine to
cool down before removing the cap. The
coolant expansion tank contains hot fluid
and is under pressure.
R Using a rag, slowly open the cap
approximately 1
/ 2 turn to relieve excess
pressure. If opened immediately, scalding Engine compartment
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recommended minimum tire tread depth for
winter tires is
1
/ 6 in (4 mm). Treadwear indicator
: appears as a solid
band across the tread.
Storing tires !
Keep unmounted tires in a cool, dry place
with as little exposure to light as possible.
Protect tires from contact with oil, grease
and fuels.
Cleaning tires !
Never use a round nozzle to power wash
tires. The intense jet of water can result in
damage to the tire.
Always replace a damaged tire. Uniform Tire Quality Grading
Standards
The Uniform Tire Quality Grading is a U.S.
Government requirement designed to give
drivers consistent and reliable information regarding tire performance. Tire
manufacturers are required to grade tires
based on three performance factors:
treadwear
:, traction ;, and temperature
resistance =. Although not a Government of
Canada requirement, all tires made for sale in
North America have these grades branded on
the sidewall.
i For illustration purposes only. Actual data
on tires are specific to each vehicle and
may vary from data shown in above
illustration.
Quality grades can be found, where
applicable, on the tire sidewall between tread
shoulder and maximum section width. For
example: Treadwear Traction Temperature
200 AA A
All passenger car tires must conform to
federal safety requirements in addition to
these grades.
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified
U.S. Government test course. For example, a
tire graded 150 would wear one and one-half
(1
1
/ 2) times as well on the government
course as a tire graded 100.
The relative performance of tires depends
upon the actual conditions of their use,
however, and may depart significantly from
the norm due to variations in driving habits,
service practices and differences in road
characteristics and climate.
Traction G
Warning!
The traction grade assigned to this tire is
based on straight-ahead braking traction 242
Tires and wheelsOperation
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Light alloy wheels
If possible, clean wheels once a week.
X
Use Mercedes-Benz approved Wheel Care,
a soft bristle brush and a strong spray of
water for cleaning the light alloy wheels.
! Only use acid-free cleaning materials.
Acid may cause corrosion or damage the
clear coat.
! The vehicle should not be parked for an
extended period of time immediately after
it
has been cleaned. This applies especially
after the wheel rims have been cleaned
with wheel rim cleaner. Wheel rim cleaners
can lead to increased corrosion of the
brake disks and brake pads. Non-approved
wheel cleaners may also damage the wheel
paint if the vehicle is not driven after
cleaning.
Therefore, the vehicle’s brake system
should always be warmed-up before it is
parked after cleaning. Drive your vehicle for
several minutes to allow the brakes to dry.
When applying Mercedes-Benz approved
Tire Care and Mercedes-Benz approved
Wheel Care products, take care not to
spray them on the brake disks.
Plastic and rubber parts X
Use a gentle dishwashing detergent or mild
detergent

for delicate fabrics as a washing
solution.
X Wipe with a cloth moistened in a lukewarm
solution.
The

surface may temporarily change color.
If this is the case, wait for it to dry. G
Warning!
Do not use cleaners or cockpit care sprays
containing
solvents to clean the cockpit or the
steering wheel. Cleaners containing solvents
will make the surface porous and vehicle
occupants could suffer serious injuries from
plastic parts coming loose in the event of air
bag deployment. !
Do not use oil, wax or scouring agents.
Otherwise you may scratch or damage the
surface.
Hard plastic trim items
X Use Mercedes-Benz approved Interior Care
on

a soft, lint-free cloth and apply with light
pressure.
COMAND display !
You
must switch off the COMAND display
and allow it to cool prior to cleaning.
! Do not use any liquids or cleaning agents.
These can damage or even destroy the
COMAND display screen.
X Use a standard microfiber cloth and apply
with light pressure.
Steering wheel X
Wipe with a damp cloth and dry thoroughly
or clean with Mercedes-Benz approved
Leather Care.
Carpets X
Use Mercedes-Benz approved Carpet and
Fabric Care for cleaning the carpets.
Headliner X
Use a soft bristle brush or a dry-shampoo
cleaner in case of excessive dirt.
Seat belts X
Only use clear, lukewarm water and soap.
! The seat belts must not be treated with
chemical cleaning agents. Do not dry the
seat belts at temperatures above

176‡
(80†) or in direct sunlight. Vehicle care
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Display messages
Possible causes/consequences and
X Solutions# Battery/
Alternator
Stop
Vehicle The battery is defective.
X
Stop the vehicle in a safe location or as soon as it is safe
to do so.
X Engage the parking brake.
X Do not continue to drive.
X Contact an authorized Mercedes-Benz Center. 4 Check
engine
oil level
at next
refueling. The engine oil level is too low.
X
Check the engine oil level ( Y page 224) and add engine oil
as required ( Y page 225).
X If you must add engine oil frequently, have the engine
checked for possible leaks. If the message Check engine oil level
at next refueling. appears while the
engine is running and at operating
temperature,

the engine oil level has dropped
to approximately the minimum level.
The message will be stored in the vehicle
status message memory after you have
cleared it from the multifunction display.
Visually check for oil leaks. If there are no
obvious oil leaks, drive to the nearest service
station to refill your engine oil to the required
level. For information on approved engine oils
contact
an authorized Mercedes-Benz Center
or visit www.mbusa.com (USA only).
! Engine oil level warnings should not be
ignored. Extended driving with the symbol
displayed could result in serious engine
damage that is not covered by the
Mercedes-Benz Limited Warranty. Display messages
Possible causes/consequences and
X SolutionsC The fuel level is low.
X
Refuel at the next gas station. 8 Reserve
Fuel The fuel level has dropped below the reserve mark.
X
Refuel at the next gas station. 8 Ultra Low-
sulfur
Diesel
Fuel Only Vehicles with diesel engine only:
The fuel level has dropped below the reserve mark.
X
Refuel at the next gas station.
X Only use commercially available vehicular ULTRA-LOW
SULFUR DIESEL FUEL (15 ppm SULFUR MAXIMUM). Vehicle status messages in the multifunction display
293
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Approved engine oils
Engine oils are specifically tested for their
suitability in our engines and durability for our
service intervals. Therefore, only use
approved engine oils and oil filters required
for vehicles with the Maintenance System.
For a listing of approved engine oils and oil
filters, contact an authorized Mercedes-Benz
Center or visit www.mbusa.com (USA only).
! Using engine oils and oil filters of a
specification other than those expressly
required for the Maintenance System, or
changing of oil and oil filter at change
intervals longer than those called for by the
Maintenance System will result in engine or
emission control system damage not
covered by the Mercedes-Benz Limited
Warranty.
Please follow Maintenance System
recommendations for scheduled oil
changes. Failure to do so will result in
engine or emission control system damage
not covered by the Mercedes-Benz Limited
Warranty.
Mercedes-Benz recommends MOBIL OIL.
Use the table below to determine the
MB sheet number. Model Engine,
type MB sheet
number
R 350 BlueTEC 642 229.51
R 350 272 229.5
i
MB sheet numbers are printed on the
outside of oil containers. Viscosity grades for engine oils Using the chart below, select oil viscosity
according to the lowest air temperature
expected before the next oil change.
Engine oil additives
! Do not blend oil additives with engine oil.
They may damage the engine. Damage or
malfunctions resulting from blending oil
additives are not covered by the Mercedes-
Benz Limited Warranty. Air conditioning refrigerant
R134a (HFC) refrigerant and special PAG
lubricating oil are used in the air conditioning
system.
! Never use R 12 (CFC) or mineral-based
lubricating oil. Otherwise damage to the
system will occur. Brake fluid
G
Warning!
During vehicle operation, the boiling point of
the brake fluid is continuously reduced
through the absorption of moisture from the
atmosphere.
Under extremely strenuous operating
conditions, this moisture content can lead to 352
Fuels, coolants, lubricants, etc.Technical data
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immediately. If AdBlue
®
has crystallized
already, use cold water and a sponge.
AdBlue ®
residues will crystallize and soil
the affected surfaces.
High ambient temperatures If AdBlue
®
in the reservoir heats up to above
122‡ (50†) for a long period of time, for
example due to direct sunlight, ammonia gas
vapors may escape when opening the
AdBlue ®
tank. G
Warning!
When opening the filler cap of the AdBlue ®
tank ammonia gas vapors may escape. Refill
AdBlue ®
in a well ventilated area only.
Ammonia

gas vapors have a pungent odor and
are particularly irritating for your skin,
mucous membranes, and eyes. Inhaling
ammonia gas vapors will cause burning eyes,
nose, and throat, as well as coughing and
watering eyes.
Low ambient temperatures AdBlue
®
freezes at a temperature of
approximately 12‡ (-11†). Your vehicle is
factory

equipped with an AdBlue ®
preheating
system. The vehicle can thus be operated at
temperatures below 12‡ (-11†).
Special additives !
Only use AdBlue ®
complying with
ISO 22241. Do not add additives to
AdBlue ®
and do not dilute AdBlue ®
with
water.

Otherwise, the BlueTEC exhaust gas
aftertreatment system could be damaged.
Damage caused by using additives or
diluting with water are not covered by the
Mercedes-Benz Limited Warranty.
Purity The purity of AdBlue
®
is of particular
importance for avoiding malfunctions in the
exhaust gas aftertreatment. If AdBlue
®
is pumped out of the tank, e.g.
during repair work, the same liquid must not
be used to refill the tank as its purity is no
longer guaranteed.
! Impurities caused for example by other
service

products, cleaning agents, and dust
result in increased emissions,
malfunctions, catalyst damage, or engine
damage. Coolants
The engine coolant is a mixture of water and
anticorrosion/antifreeze, which provides:
R Corrosion protection
R Freeze protection
R Boiling

protection (by increasing the boiling
point)
The cooling system was filled at the factory
with a coolant providing freeze protection to
approximately -35‡ (-37†) and corrosion
protection.
! Add premixed coolant solution only.
Adding water and MB 325.0 Anticorrosion/
Antifreeze separately from each other,
could cause engine damage not covered by
the Mercedes-Benz Limited Warranty.
If the antifreeze mixture is effective to -35‡
(-37†), the boiling point of the coolant in the
pressurized cooling system is reached at
approximately 266‡ (130†).
The coolant solution must be used year round
to provide the necessary corrosion protection
and increase boil-over protection. Refer to
the Maintenance Booklet for replacement
interval.
Coolant system design and coolant used
determine the replacement interval. The
replacement interval published in the
Maintenance Booklet is only applicable if
MB 325.0 Anticorrosion/Antifreeze solution
or other Mercedes-Benz approved products
of equal specification are used to renew the Fuels, coolants, lubricants, etc.
355
Technical data
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