2004 MERCEDES-BENZ CL500 cooling

308 Practical hintsWhat to do if …?Display
Display messages
Possible cause
Possible solution
Ï
COOLANT
STOP, ENGINE OFF!
The poly-V-belt could be broken.

Stop immediately and check the
poly-V-belt.
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. 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 Limit-
ed Warranty.
Ï
COOLANT
VISIT WORKSHOP!
The cooling fan for the coolant is malfunc-
tioning.

Observe the coolant temperature display.

Have the fan replaced as soon as possi-
ble.

372 Technical dataFuels, coolants, lubricants, etc.
Fuels, coolants, lubricants, etc.CapacitiesVehicle components and their respective
lubricants must match. Therefore use only
brands tested and approved by us.Please refer to the Factory Approved Ser-
vice Products pamphlet, or inquire at your
Mercedes-Benz Center.
Model
Capacity
Fuels, coolants, lubricants, etc.
Engine with oil filter
CL 500
CL 55 AMG
CL 600
8.5 US qt (8.0 l)
7.9 US qt (7.5 l)
9.5 US qt (9.0 l)
Approved engine oils
Automatic transmission
CL 500
CL 55 AMG
CL 600
9.1 US qt (8.6 l)
9.1 US qt (8.6 l)
8.1 US qt (7.7 l)
MB Automatic Transmission Oil
Rear axle
CL 55 AMG
and CL 600
1.7 US qt (1.6 l)
2.1 US qt (2.0 l)
Hypoid gear oil SAE 85 W 90
Hydraulic system for ABC
approx. 4.2 US qt (4.0 l)
MB Hydraulic fluid
Power steering
approx. 1.1 US qt (1.0 l)
MB Power Steering Fluid
(Pentosin CHF 11S)
Front wheel hubs
approx. 3.5 oz (100 g) each
High temperature roller bearing grease
Brake system
0.7 US qt (0.7 l)
MB Brake Fluid (DOT 4+)
Cooling system
CL 500
CL 55 AMG
CL 600
approx. 12.1 US qt (11.5 l)
approx. 15.3 US qt (14.5 l)
approx. 15.85 US qt (15 l)
MB 325.0 Anticorrosion / Antifreeze

373 Technical data
Fuels, coolants, lubricants, etc.
Model
Capacity
Fuels, coolants, lubricants, etc.
Low temperature cooling system
CL 600
2.3 US qt (2.2 l)
MB 325.0 Anticorrosion / Antifreeze
Fuel tank
including a reserve of
CL 500
CL 55 AMG
CL 600
23.2 US gal (88.0 l)
2.9 US gal (11.0 l)
Premium unleaded gasoline:
Minimum Posted Octane 91
(Avg.of96RON/86MON)
Air conditioning system
R-134a refrigerant and special PAG
lubricant oil (never R-12)
Windshield washer and
headlamp cleaning system:
7.1 US qt (6.7 l)
MB Windshield Washer Concentrate
1
1Use MB Windshield Washer Concentrate “S” and water for temperatures above freezing or MB Windshield Washer Concentrate “S” and commercially available pre-
mixed windshield washer solvent / antifreeze for temperatures below freezing point. Follow suggested mixing ratios (page 379).

376 Technical dataFuels, coolants, lubricants, etc.Gasoline additives
A major concern among engine manufac-
turers is carbon build-up caused by gaso-
line. Mercedes-Benz recommends only the
use of quality gasoline containing additives
that prevent the build-up of carbon depos-
its.
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 en-
gine performance problems such as:

Warm-up hesitation


Unstable idle


Knocking / pinging


Misfire


Power lossDo not blend any specific fuel additives
with fuel. This only results in unnecessary
costs and may be harmful to the engine op-
eration.
Damage or malfunctions resulting from
poor fuel quality or from blending specific
fuel additives are not covered by the
Mercedes-Benz Limited Warranty.
Coolants
The engine coolant is a mixture of water
and anticorrosion / antifreeze, which pro-
vides:

Corrosion protection


Freeze protection


Boiling protection (by increasing the
boiling point)
The cooling system was filled at the factory
with a coolant providing freeze protection
to approximately –22°F (–30°C) and cor-
rosion protection.
If the antifreeze mixture is effective to
–22°F (–30°C), the boiling point of the
coolant in the pressurized cooling system
is reached at approximately 266°F
(130°C).
The coolant solution must be used year
round to provide the necessary corrosion
protection and increase in the boil-over
protection. Refer to Service Booklet for re-
placement interval.

377 Technical data
Fuels, coolants, lubricants, etc.
Coolant system design and coolant used
stipulate the replacement interval. The re-
placement interval published in the Ser-
vice Booklet is only applicable if MB 325.0
anticorrosion / antifreeze solution or other
Mercedes-Benz approved products of
equal specification (see Factory Approved
Service Products pamphlet) are used to re-
new the coolant concentration or bring it
back up to the proper level.
To provide important corrosion protection,
the solution must be at least 45%
anticorrosion / antifreeze [equivalent to
freeze protection to approx. –22°F
(–30°C)]. If you use a solution that is more
than 55% anticorrosion / antifreeze [freeze
protection to approx. –49°F (–45°C)], the
engine temperature will increase due to
the lower heat transfer capability of the so-
lution. Therefore, do not use more than
this amount of anticorrosion / antifreeze.If the coolant level is low, water and
MB 325.0 anticorrosion / antifreeze
should be used to bring it up to the proper
level (have cooling system checked for
signs of leakage). Please make sure the
mixture is in accordance with label instruc-
tions.
The water in the cooling system must meet
minimum requirements, which are usually
satisfied by normal drinking water. If you
are not sure about the water quality, con-
sult an authorized Mercedes-Benz Center.Anticorrosion / antifreeze
Your vehicle contains a number of alumi-
num parts. The use of aluminum compo-
nents in motor vehicle engines
necessitates that anticorrosion / anti-
freeze coolant used in such engines be
specifically formulated to protect the alu-
minum
parts. (Failure to use such anticorrosion /
antifreeze coolant will result in a signifi-
cantly shortened service life.)
Therefore, the following product is strongly
recommended for use in your vehicle:
Mercedes-Benz 325.0 Anticorrosion / An-
tifreeze Agent.
Before the start of the winter season (or
once a year in hot southern regions), you
should have the anticorrosion / antifreeze
concentration checked. The coolant is also
regularly checked each time you bring your
vehicle to an authorized Mercedes-Benz
Center for service.

378 Technical dataFuels, coolants, lubricants, etc.Anticorrosion / antifreeze quantityModel
Approx. freeze protection
– 35°F (– 37°C)
– 49°F (– 45°C)
CL 500
6.1 US qt. (5.75 l)
6.7 US qt. (6.3 l)
CL 600 (main cooling system)
7.9 US qt. (7.5 l)
8.7 US qt. (8.25 l)
CL 600 (low temperature cooling system)
1.2 US qt. (1.1 l)
1.3 US qt. (1.2 l)
CL 55 AMG
7.7 US qt. (7.25 l)
8.5 US qt. (8.0 l)

389 Index
A
ABC 210, 383
Messages in display 300
Setting vehicle level 211
ABS 23, 77, 383
Malfunction indicator lamp 292
Messages in display 301
Warning lamp 292
Accelerator position, automatic
transmission 163
Accident
In case of 52
Activating
Air conditioner (cooling) 183
Air recirculation mode 179
Anti-theft alarm system 83
Central locking (control system) 153
Charcoal filter 181
Distance warning function* 207
Distronic* 203
Easy-entry/exit feature 154
ESP 81
Exterior headlamps 49
Exterior lamps 120Exterior rear view mirror parking
position 168
Front and rear fog lamp 121, 122
Hazard warning flasher 124
Headlamps 49
High beams 123
Ignition 31
Ignition with KEYLESS-GO*
start/stop button 33
Immobilizer 55, 82
Limiting opening height of
trunk lid 153
Rear window defroster 182
Residual heat 183
Seat heater 113, 114
Seat ventilation* 115
Tow-away alarm 84
Windshield wipers 50
Activating steering wheel gearshift control
Downshifting 162, 165
Upshifting 162, 165
Adding
Coolant 267
Engine oil 265Additional turn signals 336
Adjustable air vents, rear passenger
compartment 185
Adjusting 34
Air distribution 177
Air volume 178
Backrest tilt 35
Exterior rear view mirror 40
Folding forward front seat
backrests 37
Head restraint height 36
Head restraint tilt 36
Instrument cluster illumination 126
Interior rear view mirror 40
Lumbar support 111
Mirrors 40
Multicontour backrest* 111
Seat cushion depth 35, 111
Seat cushion tilt 35
Seat fore and aft adjustment 35
Seat height 35
Seat in the lumbar region 112
Seat in the shoulder region 111
Seats 34

390 Index
Steering column height 39
Steering column in or out 39
Steering column up or down 39
Steering wheel 39
Air conditioner (cooling)
Turning off 183
Air pressure see Tire inflation
pressure 271
Air recirculation mode 179
Activating 179
Deactivating 180
Air vents, rear passenger compartment
Adjustable 185
Air volume
Adjusting 178
AIRBAG OFF indicator lamp 298
Airbags 61
BabySmart
TM deactivation
system 71, 383
Children 62
Front 65
Passenger 65
Safety guidelines 64
Side impact 65
Window curtain 65Alarm
Audible 76, 82, 83
Canceling 83
Visual 82
Alarm system
Anti-theft 82
Anti-theft alarm system indicator
lamp 25
Alignment bolt 346
Alignment bolt (vehicle tool kit) 329, 383
Antiglare
Automatic 167
Antilock brake system (ABS) 383
Antilock Brake System see ABS 23
Anti-theft alarm system
Activating 83
Canceling alarm 83
Deactivating 83
Anti-theft systems 82
Anti-theft alarm system 82
Anti-theft alarm system indicator
lamp 25
Immobilizer 82
Tow-away alarm 84Armrest
Storage compartment in front of 222,
223
Storage compartment in front of
armrest 222
Ashtray 227
At the gas station 257
ATF (automatic transmission fluid) 266
AUDIO menu 134
Operating
Cassette player 136
CD player 136
Selecting radio station 135
Selecting satellite radio* station 135
Audio system
CD mode 137
Automatic antiglare for rear view
mirror 167
Automatic central locking
Activating/deactivating
(control system) 153
Automatic climate control 173
Air recirculation mode 179
Defrosting 179
Rear window defroster 182
Setting the temperature 176