2007 MERCEDES-BENZ CLS63AMG coolant

347 Practical hints
What to do if …
Problem
Possible cause/consequence
Suggested solution
D
The red coolant temperature
warning lamp comes on when
the engine is running.
There is insufficient coolant in the reservoir.
If this warning lamp comes on frequently,
there is a leak in the cooling system.
If the coolant level is correct, the electric
radiator fan may be broken.

Immediately add coolant to prevent
engine from overheating
(page 290).

Have the cooling system checked.

If the coolant temperature is below
248°F (120°C), you can continue
driving to the nearest authorized
Mercedes-Benz Center.

Avoid high engine loads (e.g. driving
uphill) and stop-and-go driving.
D
The red coolant temperature
warning lamp comes on while
driving and you hear a warning
sound.
The coolant temperature has exceeded
248°F (120°C).

Stop in a safe location as soon as pos-
sible and allow the engine and coolant
to cool down.
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.

373 Practical hints
What to do if …
Display symbol
Display messages
Possible cause/consequence
Possible solution
(USA only)ú(Canada only)±
Visit workshop
There may be a malfunction in the:

fuel injection system


ignition system


exhaust system


fuel system

Have the measuring system checked
by an authorized Mercedes-Benz
Center.
H
Top up coolant
See Operator’s Manual
The coolant level is too low.

Add coolant (
page 290).

If you have to add coolant frequently,
have the cooling system checked by
an authorized Mercedes-Benz Center.
Warning!
G
Do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts. You could be seriously burned.
!
Do not ignore the low engine coolant level
warning. Extended driving with the message and
symbol displayed may cause serious engine
damage not covered by the Mercedes-Benz Lim-
ited Warranty.Do not drive without sufficient amount of coolant
in the cooling system. The engine will overheat
causing major engine damage.

374 Practical hintsWhat to do if …
During severe operation conditions and
stop-and-go city traffic, the coolant tem-
perature may rise close to 248°F (120°C).
Display symbol
Display messages
Possible cause/consequence
Possible solution
Z
Coolant
Stop, turn engine off
The coolant is too hot.

Stop the vehicle in a safe location or as soon
as it is safe to do so and immediately turn
off the engine.

Only start the engine again after the mes-
sage disappears. You could otherwise dam-
age the engine.

Apply the parking brake (
page 53).

Observe the coolant temperature indicator
in the instrument cluster (
page 26).
If the temperature rises again:

Contact an authorized Mercedes-Benz
Center immediately.
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.
Stop the vehicle in a safe location away from
other traffic. 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 damage which is not
covered by the Mercedes-Benz Limited
Warranty.

375 Practical hints
What to do if …
Display symbol
Display messages
Possible cause/consequence
Possible solution
Z
Coolant
Stop, turn engine off
The poly-V-belt could be broken.

Stop the vehicle in a safe location and immediately
turn off the engine.

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 au-
thorized Mercedes-Benz Center.
If it is intact:

Do not continue to drive the vehicle with this mes-
sage displayed. Doing so could result in serious en-
gine damage that is not covered by the
Mercedes-Benz Warranty.

Observe the coolant temperature indicator in the
instrument cluster (
page 26).

Drive immediately to the nearest authorized
Mercedes-Benz Center.

376 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
Z
The cooling fan for the coolant is
malfunctioning.

Observe the coolant temperature indicator in the
instrument cluster (
page 26).
If the coolant temperature is under 120°C, you may
continue driving to an authorized Mercedes-Benz
Center.

Avoid placing heavy loads on the engine (e.g. by
driving uphill) as well as stop-and-go traffic.

Have the fan replaced as soon as possible.
±
Display malfunction
Visit workshop
Certain electronic systems are
unable to relay information to
the control system. The follow-
ing systems may have failed:

Coolant temperature display


Tachometer


Cruise control display

Have the electronic systems checked by an autho-
rized Mercedes-Benz Center.
Engine
Service
There may be a malfunction in:

the fuel injection system


the ignition system


the exhaust system

Have the engine checked as soon as possible by an
authorized Mercedes-Benz Center.

431 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.

436 Technical dataLayout of poly-V-belt driveCLS 550
1Idler pulley
2Idler pulley
3Automatic belt tensioner
4Power steering pump
5Air conditioning compressor
6Crankshaft
7Coolant pump
8Generator (alternator)
CLS 63 AMG
1Idler pulley
2Idler pulley
3Idler pulley
4Automatic belt tensioner
5Power steering pump
6Air conditioning compressor
7Crankshaft
8Coolant pump
9Generator (alternator)

449 Technical data
Fuels, coolants, lubricants etc.
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 ser-
vice fluids from coming into direct contact
with your skin or clothing.
If a service fluid is swallowed, contact a phy-
sician immediately.
Model
Capacity
Fuels, coolants, lubricants etc.
Engine with oil filter
CLS 550
9.0 US qt (8.5 l)
Approved engine oils
Engine with oil filter including
oil cooler
CLS 63 AMG
9.3 US qt (8.8 l)
Approved engine oils
Automatic transmission
CLS 550
9.7 US qt (9.2 l)
MB Automatic Transmission Fluid
CLS 63 AMG
9.0 US qt (8.5 l)
Rear axle
CLS 550
1.37 US qt (1.3 l)
Hypoid gear oil SAE 85 W 90
CLS 63 AMG
1.27 US qt (1.2 l)