2005 MERCEDES-BENZ CL55AMG coolant temperature

345 Practical hints
What to do if …?
During severe operating conditions,
e.g. stop-and-go traffic, the coolant tem-
perature may rise close to 248°F (120°C).
Display
Possible cause
Possible solution
Ï
COOLANT
STOP, ENGINE OFF
The coolant is too hot.

Stop the vehicle and turn off the engine.

Only start the engine again after the mes-
sage disappears. You could otherwise
damage the engine.
Warning!
G
Driving when your engine is badly overheat-
ed can cause some fluids which may have
leaked into the engine compartment to
catch fire. You could be seriously burned.
Steam from an overheated engine can cause
serious burns and can occur just by opening
the engine hood. Stay away from the engine
if you see or hear steam coming from it.
Turn off the engine, get out of the vehicle
and do not stand near the vehicle until the
engine has cooled down.
!The engine should not be operated with
the coolant temperature above 248°F
(120°C). Doing so may cause serious
engine damage which is not covered by
the Mercedes-Benz Limited Warranty.

346 Practical hintsWhat to do if …?Display
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 Cen-
ter.
If it is intact:

Restart the engine only after the message
disappears from the multifunction dis-
play. Doing so could result in serious en-
gine damage that is not covered by the
Mercedes-Benz Limited Warranty.

Observe the coolant temperature gauge
(page 135).

Drive immediately to the nearest autho-
rized Mercedes-Benz Center. Adjust driv-
ing to be consistent with reduced braking
responsiveness.

347 Practical hints
What to do if …?
Display
Possible cause
Possible solution
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.
Î
CRUISE CONTROL
DRIVE TO WORKSHOP
Cruise control or Distronic* is malfunc-
tioning.

Have cruise control or Distronic*
checked by an authorized Mercedes-Benz
Center.
G
DISPLAY DEFECTIVE
VISIT WORKSHOP
The instrument cluster display is malfunc-
tioning.

Continue driving with added caution.

Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
±
DISPLAY DEFECTIVE
VISIT WORKSHOP
Certain electronic systems are unable to
relay information to the control system.
The following systems may have failed:

Coolant temperature display


Tachometer


Cruise control display

Have the electronic systems checked by
an authorized Mercedes-Benz Center.
J
DOOR OPEN
You are attempting to drive with one or
more doors open.

Close the doors.

411 Technical data
Fuels, 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
CL 65 AMG
8.5 US qt (8.0 l)
8.0 US qt (7.5 l)
9.5 US qt (9.0 l)
11.0 US qt (10.5 l)
Approved engine oils
Automatic transmission
CL 500
CL 55 AMG CL 600
CL 65 AMG
9.1 US qt (8.6 l)
9.1 US qt (8.6 l)
8.2 US qt (7.7 l)
8.2 US qt (7.7 l)
MB Automatic Transmission Fluid
Rear axle
CL 500
CL 55 AMG CL 600
CL 65 AMG
1.7 US qt (1.6 l)
2.1 US qt (2.0 l)
2.1 US qt (2.0 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+)

412 Technical dataFuels, coolants, lubricants, etc.
Model
Capacity
Fuels, coolants, lubricants, etc.
Cooling system
CL 500
CL 55 AMG
CL 600
CL 65 AMG
approx. 12.1 US qt (11.5 l)
approx. 15.3 US qt (14.5 l)
approx. 15.85 US qt (15 l)
approx. 16.18 US qt (15.3 l)
MB 325.0 Anticorrosion/Antifreeze
Low temperature cooling system
CL 600
CL 65 AMG
2.3 US qt (2.2 l)
3.06 US qt (2.9 l)
MB 325.0 Anticorrosion/Antifreeze
Fuel tank
23.2 US gal (88.0 l)
Premium unleaded gasoline:
Minimum Posted Octane 91
(Avg.of96RON/86MON)
including a reserve of
CL 500 and CL 600
2.9 US gal (11.0 l)
including a reserve of
CL 55 AMG and CL 65 AMG
3.7 US gal (14.0 l)
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 418).

416 Technical dataFuels, coolants, lubricants, etc.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 solu-
tion or other Mercedes-Benz approved
products of equal specification (see
Factory Approved Service Products pam-
phlet) are used to renew the coolant con-
centration or bring it back up to the proper
level.
To provide important corrosion protection,
the solution must be at least 45% anticor-
rosion/antifreeze [equivalent to freeze
protection to approx. –22°F (–30°C)]. If
you use a solution that is more than 55%
anticorrosion/antifreeze [freeze protec-
tion to approx. –49°F (–45°C)], the engine
temperature will increase due to the lower
heat transfer capability of the solution.
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 instructions.
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/antifreeze
coolant used in such engines be specifical-
ly formulated to protect the aluminum
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/Anti-
freeze 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.

417 Technical data
Fuels, 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
8.38 US qt (7.93 l)
9.21 US qt (8.72 l)
CL 65 AMG (main cooling system)
8.08 US qt (7.65 l)
8.9 US qt (8.42 l)
CL 65 AMG (low temperature cooling system)
1.53 US qt (1.45 l)
1.7 US qt (1.6 l)

418 Technical dataFuels, coolants, lubricants, etc.Windshield and headlamp washer system
Both the windshield and headlamp washer
systems are supplied from the windshield
washer fluid reservoir.
The windshield and headlamp washer fluid
reservoir has a capacity of approx.
7.1 US qt (6.7 l).

Refill the reservoir with MB Windshield
Washer Concentrate and water (or con-
centrate and commercially available
premixed windshield washer solvent/
antifreeze, depending on ambient tem-
peratures).Windshield and headlamp washer fluid
mixing ratio
For temperatures above freezing point, use
MB Windshield Washer Concentrate “S”
and water:


1 part “S” to 100 parts water
[40 ml “S” to 1 gallon (4 liters) water].
For temperatures below freezing point, use
MB Windshield Washer Concentrate “S”
and commercially available premixed
windshield washer solvent/antifreeze:


1 part “S” to 100 parts solvent
[40 ml “S” to 1 gallon (4 liters) solvent].
Warning
G
Washer solvent/antifreeze is highly flamma-
ble. Do not spill washer solvent/antifreeze
on hot engine parts, because it may ignite
and burn. You could be seriously burned.