Page 614 of 723
611 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Coolant level
Stop vehicle!
Switch engine offThe poly-V-belt could be broken.Stop the vehicle in a safe location or as soon
as it is safe to do so and immediately turn off
the engine.
Check the poly-V-belt.
If it is broken:
Do not continue to drive. Otherwise the en-
gine will overheat due to an inoperative water
pump which may result in damage to the en-
gine.
Notify an authorized Mercedes-Benz Center.
If it is intact:
Do not continue to drive the vehicle with this
message displayed. Doing so could result in
serious engine damage that is not covered by
the Mercedes-Benz Limited Warranty.
Observe the coolant temperature gauge in
the instrument cluster (
page 30).
(Continued on next page)
Page 615 of 723
612 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Coolant level
Stop vehicle!
Switch engine offRestart the engine.
If this message disappears from the multi-
function display:
Drive immediately to the nearest autho-
rized Mercedes-Benz Center.
If this message does not disappear from the
multifunction display:
Call Roadside Assistance.
The cooling fan for the coolant is malfunc-
tioning.Observe the coolant temperature gauge in
the instrument cluster (
page 30).
Have the fan replaced as soon as possible.
You are driving with one or both doors
open.
The display symbol shows you which doors
are open.Close the doors.
Page 674 of 723
671 Technical data
Parts service
Warranty coverage
Identification labels
Layout of poly-V-belt drive
Engine
Rims and tires
Electrical system
Main dimensions and weights
Fuels, coolants, lubricants, etc.
Page 679 of 723
676 Technical data
Layout of poly-V-belt drive
CL 550
1Idler pulley
2Idler pulley
3Automatic belt tensioner
4ABC tandem pump (pump for
power-steering assistance and ABC
chassis)
5Air conditioning compressor
6Crankshaft
7Coolant pump
8Generator (alternator)CL 600
1Automatic belt tensioner
2ABC tandem pump (pump for
power-steering assistance and ABC
chassis)
3Air conditioning compressor
4Crankshaft
5Coolant pump
6Generator (alternator)
7Idler pulley
8Idler pulley
9Idler pulley
Page 687 of 723

684 Technical data
Fuels, coolants, lubricants, etc.
Capacities
Vehicle components and their respective
lubricants must match. Therefore only use
products tested and approved by
Mercedes-Benz.
Please refer to the Factory Approved
Service Products pamphlet (USA only), or
inquire at an authorized Mercedes-Benz
Center.
Warning!G
Comply with all valid regulations with re-
spect to handling, storing and disposing of
service fluids. Otherwise you could endan-
ger persons or the environment.
Keep service fluids out of the reach of chil-
dren.
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.
ModelCapacityFuels, coolants, lubricants, etc.
Engine with oil filterCL 550
CL 6008.98 US qt. (8.5 l)
8.45 US qt. (8.0 l)Approved engine oils
Automatic transmissionCL 550
CL 60010.36 US qt. (9.8 l)
8.14 US qt. (7.7 l)MB Automatic Transmission Fluid
Rear axleCL 5501.27 US qt. (1.2 l)Hypoid gear oil SAE 85 W 90
CL 6002.11 US qt. (2.0 l)
ABC hydraulic systemAll models4.2 US qt. (4.0 l)MB ABC Fluid
Page 688 of 723

685 Technical data
Fuels, coolants, lubricants, etc.
ModelCapacityFuels, coolants, lubricants, etc.
Power steeringCL 550approx. 1.06 US qt. (1.0 l)MB Power Steering Fluid
(Pentosin CHF 11S or, depending on
vehicle production date,
Chevron Texaco PSF 9109)
1
1For detailed information, please refer to the Factory Approved Service Products pamphlet (USA only) or contact an authorized Mercedes-Benz Center.
CL 600approx. 1.27 US qt. (1.2 l)
Front wheel hubsAll modelsapprox. 3.6 oz. (95 g) eachHigh-temperature roller bearing
grease
Brake systemAll modelsapprox. 0.53 US qt. (0.5 l)MB Brake Fluid (DOT 4 Plus)
Cooling systemCL 55012.15 US qt. (11.5 l)MB 325.0 Anticorrosion/Antifreeze
CL 60013 US qt. (12.3 l)
Low temperature cooling systemCL 6002.75 US qt. (2.6 l)
Fuel tankAll models23.78 US gal (90.0 l)Premium unleaded gasoline:
Minimum Posted Octane 91
(Avg. of 96 RON/86 MON)
including a reserve ofAll models 2.9 US gal (11.0 l)
Air conditioning systemAll modelsR-134a refrigerant and special PAG
lubricant oil (never R-12)
Windshield washerAll models6.87 US qt (6.5 l)MB Windshield Washer Concentrate2
2Use MB Windshield Washer Concentrate “MB SummerFit” and water for temperatures above freezing or MB Windshield Washer Concentrate “MB SummerFit” and
commercially available premixed windshield washer solvent/antifreeze for temperatures below freezing point. Follow suggested mixing ratios (page 691).
Page 689 of 723

686 Technical data
Fuels, coolants, lubricants, etc.
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 Maintenance
System (U.S. vehicles, Canada vehicles,
depending on vehicle production date) or
FSS PLUS (Canada vehicles, depending on
vehicle production date). For a listing of
approved engine oils and oil filters, refer to
the Factory Approved Service Products
pamphlet (USA only), or contact an autho-
rized Mercedes-Benz Center.Engine oil additives
Air conditioning refrigerant
R-134a (HFC) refrigerant and special PAG
lubricating oil are used in the air condition-
ing system.
!Using engine oils and oil filters of
specification other than those expressly
required for the Maintenance System
(U.S. vehicles, Canada vehicles, depending on
vehicle production date) or FSS PLUS (Canada
vehicles, depending on vehicle production date),
or changing of oil and oil filter at change intervals
longer than those called for by the Maintenance
System (U.S. vehicles, Canada vehicles, depend-
ing on vehicle production date) or FSS PLUS
(Canada vehicles, depending on vehicle produc-
tion date) will result in engine or emission control
system damage not covered by the
Mercedes-Benz Limited Warranty.
Please follow Maintenance System
(U.S. vehicles, Canada vehicles, depending on
vehicle production date) or FSS PLUS (Canada
vehicles, depending on vehicle production date)
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.
!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.
!Never use R-12 (CFC) or mineral-based
lubricating oil. Otherwise damage to the system
will occur.
Page 690 of 723

687 Technical data
Fuels, coolants, lubricants, etc.
Brake fluid
Only brake fluid approved by
Mercedes-Benz is recommended. Your au-
thorized Mercedes-Benz Center will pro-
vide you with additional information.Premium unleaded gasoline
Warning!G
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 condi-
tions, this moisture content can lead to the
formation of bubbles in the system, thus re-
ducing the system’s efficiency.
Therefore, the brake fluid must be replaced
regularly. Refer to your vehicle’s
Maintenance Booklet for replacement inter-
val.
Warning!G
Gasoline is highly flammable and poisonous.
It burns violently and can cause serious
personal injury.
Never allow sparks, flame or smoking mate-
rials near gasoline!
Turn off the engine before refueling.
Whenever you are around gasoline, avoid in-
haling fumes and skin or clothing contact,
extinguish all smoking materials.
Direct skin contact with fuels and the inha-
lation of fuel vapors are damaging to your
health.
!To maintain the engine’s durability and per-
formance, premium unleaded gasoline must be
used. If premium unleaded gasoline is not avail-
able and low octane fuel is used, follow these
precautions:
Have the fuel tank only partially filled with
unleaded regular gasoline and fill up with
premium unleaded gasoline as soon as
possible.
Avoid full throttle driving and abrupt acceler-
ation.
D o n o t e x c e e d a n e n g i n e s p e e d o f 3 0 0 0 r p m
if the vehicle is loaded with a light load such
as two persons and no luggage.
Do not exceed 2/3 of maximum accelerator
pedal position if the vehicle is fully loaded or
operating in mountainous terrain.