engine oil MERCEDES-BENZ CL CLASS 2010 User Guide
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R
Washer system and headlamp cleaning
system (Y page 372)
R Brake fluid ( Y page 373) 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!
If you see flames or smoke coming from the
engine compartment, or if the coolant
temperature gauge indicates that the engine
is overheated, do not open the hood. Move
away from vehicle and do not open the hood
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
vehicle. Comply with all relevant safety
precautions. G
Warning!
To help prevent personal injury, stay clear of
moving parts when the hood is open and the
engine is running.
The radiator fan may continue to run for
approximately 30 seconds or may even
restart after the engine has been turned off.
Stay clear of fan blades. G
Warning!
The engine is equipped with a transistorized
ignition system. Because of the high voltage
it is dangerous to touch any components
(ignition coils, spark plug sockets, diagnostic
socket) of the ignition system
R with the engine running
R while starting the engine
R when the ignition is switched on and the
engine is turned manually X
Pull hood lock release lever :.
The hood is unlocked.
! Never open the hood if the wiper arms are
folded forward away from the windshield.
Otherwise the windshield wipers or the
hood could be damaged. X
Push handle ; under the hood upwards.
X Pull up on the hood and then release it.
The hood will be held open at shoulder
height by gas-filled struts automatically. 368
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Closing
G
Warning!
When closing the hood, use extreme caution
not to catch hands or fingers. Be careful that
you do not close the hood on anyone.
Make sure the hood is securely engaged
before driving off. Do not continue driving if
the hood can no longer engage after an
accident, for example. The hood could
otherwise come loose while the vehicle is in
motion and injure you and/or others.
X Let the hood drop from a height of
approximately 8 in (20 cm).
X Check to make sure the hood is fully
closed.
If you can raise the hood at a point above
the headlamps, then it is not properly
closed. Open it again and let it drop with
somewhat greater force. Engine oil
The amount of oil your engine consumes will
depend on a number of factors, including
driving style. Increased oil consumption can
occur when the vehicle is new or the vehicle
is driven frequently at higher engine speeds.
Engine oil consumption checks should only
be made after the vehicle break-in period.
! Do not use any special lubricant additives,
as these may damage the drive assemblies.
Using special additives not approved by
Mercedes-Benz may cause damage not
covered by the Mercedes-Benz Limited
Warranty.
For further information contact an
authorized Mercedes-Benz Center.
Notes on checking engine oil level When checking the oil level
R
the vehicle must be parked on level ground
R with the engine at operating temperature,
the vehicle must have been stationary for at least 5 minutes with the engine turned
off
R with the engine not at operating
temperature, the vehicle must have been
stationary for at least 30 minutes with the
engine turned off
Checking engine oil level with the oil
dipstick On the CL 550 4MATIC and CL 63 AMG you
can check the engine oil level with the oil
dipstick.
X
Open the hood (Y page 368). Example illustration: CL 550 4MATIC
X
Pull out oil dipstick :.
X Wipe oil dipstick : clean.
X Slowly insert oil dipstick : fully into the
dipstick guide tube.
X Pull out oil dipstick : again after
approximately 3 seconds to obtain
accurate reading.
The oil level is correct when it is between
lower (min) mark = and upper (max)
mark ; of oil dipstick :.
i CL 550 4MATIC only:
The filling quantity between the upper and
lower marks on the oil dipstick is
approximately 2.1 US qt. (2.0 l).
i CL 63 AMG only:
The filling quantity between the upper and
lower marks on the oil dipstick is
approximately 1.6 US qt. (1.5 l). Engine compartment
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X
If necessary, add engine oil.
For more information on engine oil, see
“Fuels, coolants, lubricants etc.”
(Y page 490).
For information on messages in the
multifunction display concerning engine oil,
see the “Practical hints” section
(Y page 444).
Checking engine oil level with the
control system On the CL 600 and CL 65 AMG you can check
the engine oil level with the control system.
i
The menu overview can be found on
(Y page 203).
X Switch on the ignition.
X Press = or ; on the multifunction
steering wheel to select the Service
menu.
X Press 9 or : on the multifunction
steering wheel to select Engine Oil
Level.
X Press a.
The following message appears in the
multifunction display:
Measuring
Engine Oil Level
Accurate Only
When Vehicle Is Level
One of the following messages will
subsequently appear in the multifunction
display:
R Engine Oil Level
OK
R Add 1.0 qts. Engine Oil
At Next Refueling
(Canada: 1.0 l)
R Add 1.5 qts. Engine Oil
At Next Refueling
(Canada: 1.5 l)
R Add 2.0 qts. Engine Oil
At Next Refueling (Canada:
2.0 l)
i If you want to interrupt the checking
procedure, press button % on the
multifunction steering wheel.
X If necessary, add engine oil.
For more information on engine oil, see
“Fuels, coolants, lubricants etc.”
(Y page 490).
Other display messages
If the
ignition is not switched on, the following
message appears in the multifunction
display:
For Engine Oil Level
Ignition Must be On
X Switch on the ignition.
Need More Time
to Check
Engine Oil Level
X If the engine is at operating temperature,
wait 5 minutes before repeating check
procedure.
X If the engine is not at operating
temperature yet,
you must wait 30 minutes
before checking oil.
If you see the message:
Engine Oil Level
Not Measurable
With Running Engine
X Turn off the engine.
X If the engine is at operating temperature,
wait 5 minutes before checking oil.
X If the engine is not at operating
temperature yet,
you must wait 30 minutes
before checking oil.
If there is excess engine oil with the engine at
normal operating temperature, the following
message appears in the multifunction
display:
Reduce
Engine Oil Level
X Have excess oil siphoned or drained off.
Contact an authorized Mercedes-Benz
Center. 370
Engine compartment
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!
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.
For information on messages in the
multifunction display concerning engine oil,
see the “Practical hints” section
(Y page 444).
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: CL 550 4MATIC Example illustration: CL 63 AMG
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 490) and
(Y page 492). 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. Active Body Control (ABC) fluid level
Regular fluid level check is not required. If you
notice fluid leaks or malfunction messages in
the multifunction display, have an authorized
Mercedes-Benz Center check the ABC
system. Engine compartment
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Display messages
Possible causes/consequences and
X Solutions# The battery is no longer charging.
Possible causes:
R
alternator malfunctioning
R broken poly-V-belt
R a malfunction in the electronic system
X Stop immediately in a safe location or as soon as it is safe
to do so and check the poly-V-belt.
X If it is broken: Do not continue to drive. Otherwise the
engine will overheat due to an inoperative water pump
which may result in damage to the engine. Contact an
authorized Mercedes-Benz Center.
X If it is intact: Drive to the nearest authorized Mercedes-
Benz Center immediately. Adjust driving to be consistent
with reduced braking responsiveness. 4 Check
Engine
Oil at
Next
Refueling CL 550 4MATIC and CL 63 AMG only:
The engine oil level has dropped to approximately the
minimum level.
X
Check the engine oil level ( Y page 369) and add engine oil
as required (Y page 371).
X If you must add engine oil frequently, have the engine
checked for possible leaks. 4 Check
Engine
Oil Level
(Add 1
quart)
(USA only)
Check
Engine
Oil Level
(Add 1
Liter)
(Canada
only) CL 600 and CL 65 AMG only:
The engine oil level is too low.
X
Add engine oil ( Y page 371) and check the engine oil level
(
Y page 369).
X If you must add engine oil frequently, have the engine
checked for possible leaks. If the message
Check Engine
Oil at Next
Refueling (CL 550 4MATIC and CL 63 AMG
only) or Check Engine Oil Level (Add 1
quart) (Canada: 1 Liter) (CL 600 and CL
65 AMG) 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.444
Vehicle status messages in the multifunction display
Practical hints
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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 Solutions4 Engine
Oil Level
Cannot Be
Measured CL 600 and CL 65 AMG only:
The measuring system is malfunctioning.
X
Have the measuring system checked at an authorized
Mercedes-Benz Center. 4 Engine
Oil Level
Too High CL 600 and CL 65 AMG only:
You have added too much engine oil. There is a risk of
damaging the engine or the catalytic converter.
X
Have oil siphoned or drained off. Observe all legal
requirements with respect to its disposal. 4 Engine
Oil Level
Low Stop
Vehicle
Turn
Engine Off CL 600 and CL 65 AMG only:
The engine oil level is too low. There is a danger of engine
damage.
X
Stop the vehicle in a safe location or as soon as it is safe
to do so.
X Turn off the engine.
X Engage the parking brake.
X Add engine oil ( Y page 371) and check the engine oil level
(
Y page 369). C 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. 7 Gas Cap
Loose A loss of pressure has been detected in the fuel system. The
fuel cap may not be closed properly or the fuel system may
be leaking.
X
Check the fuel cap ( Y page 367).
X If it is not closed properly: Close the fuel cap.
X If it is closed properly: Have the fuel system checked at
an authorized Mercedes-Benz Center. Vehicle status messages in the multifunction display
445
Practical hints
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Spare wheel
! Compare the recommended tire inflation pressure for your vehicle with the tire inflation
pressure on the yellow label located on the spare wheel rim.
If the
tire inflation pressure on the yellow label on the spare wheel rim differs from the values
given in this Operator’s Manual, inflate the tire to the recommended tire inflation pressure
given on the yellow label on the spare wheel rim.
i Please note that the tire inflation pressure of the spare wheel differs from the tire inflation
pressure of the road tires. All models
Rim
4.5 B x 19 H2
Wheel offset
1.38 in (35 mm)
Minispare tire
56 T 155/70 R19 113M
Recommended tire inflation pressure
61 psi (4.2 bar)
Fuels, coolants, lubricants, etc.
Capacities
Vehicle components and their respective
lubricants must match. Therefore only use
products tested and approved by Mercedes-
Benz.
For information on tested and approved
products, contact an authorized Mercedes-
Benz Center or visit www.mbusa.com (USA
only). G
Warning!
Comply with all valid regulations with respect
to handling, storing, and disposing of service fluids. Otherwise you could endanger persons
or the environment.
Keep service fluids out of the reach of
children.
For health reasons, you should prevent
service
fluids
from coming into direct contact
with your skin or clothing.
If a service fluid is swallowed, contact a
physician immediately. Model Capacity Fuels, coolants,
lubricants, etc.
Engine with oil
filter
CL 550 4MATIC 9.0 US qt (8.5 l) Approved engine
oils
CL 600
CL 65 AMG 9.5 US qt (9.0 l)
CL 63 AMG
57 9.9 US qt (9.35 l)
56
Must not be used with snow chains.
57 Engine with oil cooler. 490
Fuels, coolants, lubricants, etc.
Technical data
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Model Capacity Fuels, coolants,
lubricants, etc.
Air
conditioning
system
All models — R134a refrigerant
and special
PAG lubricant oil
(never R 12)
Washer system
and headlamp
cleaning
system
All models 6.9 US qt (6.5 l) MB Windshield
Washer
Concentrate
59
(Y page 496)
Washer fluid mixing
ratio ( Y page 496) 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
CL 550 4MATIC 273 229.5
CL 600 275 229.5
CL 63 AMG 156
229.5
60 CL 65 AMG 275 229.5
i
MB sheet numbers are printed on the
outside of oil containers.
59 Mixed with water or commercially available premixed washer solvent/antifreeze.
60 Restriction: Only SAE 0W-40 /SAE 5W-40
engine oils may be used.492
Fuels, coolants, lubricants, etc.
Technical data
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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
the formation of bubbles in the system, thus
reducing the system’s efficiency. Therefore, the brake fluid must be replaced
regularly. Refer to your vehicle’s Maintenance
Booklet for replacement interval.
Only brake fluid approved by Mercedes-Benz
is recommended. Any authorized Mercedes-
Benz Center will provide you with additional
information. Premium unleaded gasoline
G
Warning!
Gasoline is highly flammable and poisonous.
It burns violently and can cause serious
personal injury.
Never allow sparks, flames or smoking
materials near gasoline!
Turn off the engine before refueling.
Whenever you are around gasoline, avoid
inhaling fumes and any skin or clothing
contact. Extinguish all smoking materials.
Direct skin contact with fuels and the
inhalation of fuel vapors are damaging your
health.
! To maintain the engine’s durability and
performance, premium unleaded gasoline
must be used.
If premium unleaded gasoline is not
available and low octane gasoline is used,
follow these precautions:
R Have the fuel tank only partially filled
with unleaded regular gasoline and fill up
with premium unleaded gasoline as soon
as possible.
R Avoid full throttle driving and abrupt
acceleration.
R Do not exceed an engine speed of
3 000 rpm if the vehicle is loaded with a
light load such as two persons and no
luggage.
R Do not exceed 2
/ 3 of maximum
accelerator pedal position if the vehicle Fuels, coolants, lubricants, etc.
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is fully loaded or operating in
mountainous terrain.
Fuel requirements
Only use premium unleaded gasoline. The
octane number
(posted at the pump) must be
91 min. It is an average of both the Research
Octane Number (RON) and the Motor Octane
Number (MON): (RON+MON)/2. This is also
known as the ANTI-KNOCK INDEX.
Reformulated gasolines (RFG) and/or
unleaded gasoline containing oxygenates
such as ethanol, TAME, ETBE, IPA, IBA, and
TBA can be used provided the ratio of any one
of these oxygenates to gasoline does not
exceed 10%; MTBE must not exceed 15%.
The ratio of methanol to gasoline must not
exceed 3% plus additional cosolvents.
Using mixtures of ethanol and methanol is not
allowed. Gasohol, which contains 10%
ethanol and 90% unleaded gasoline, can be
used.
These blends must also meet all other fuel
requirements, such as resistance to spark
knock, boiling range, vapor pressure, etc. Gasoline additives
A major concern among engine
manufacturers is carbon build-up caused by
gasoline. Mercedes-Benz recommends only
the use of quality gasoline containing
additives that prevent the build-up of carbon
deposits.
After an extended period of using fuels
without such additives carbon deposits can
build up, especially on the intake valves and
in the combustion area, leading to engine
performance problems such as:
R Warm-up hesitation
R Unstable idle
R Knocking/pinging R
Misfire
R Power loss
In areas where carbon deposits may be
encountered due to lack of availability of
gasoline which contains these additives, the
use of Mercedes-Benz approved additives is
recommended.
Contact an
authorized Mercedes-Benz Center
or visit www.mbusa.com (USA only) for a
listing of approved products. Follow
directions on the product label.
Do not blend other fuel additives with fuel.
This only results in unnecessary cost and may
be harmful to the engine operation.
! Damage or malfunction resulting from
poor fuel quality or from blending additional
fuel additives other than those tested and
approved by us for use on Mercedes-Benz
vehicles are not covered by the Mercedes-
Benz Limited Warranty or by any pre-owned
or Extended Limited Warranties. 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†). 494
Fuels, coolants, lubricants, etc.
Technical data
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