2007 MERCEDES-BENZ SLR coolant

335 Practical hints
What to do if ...
Left displayRight displayPossible cause/
consequencePossible solution
BTop up
coolant
See Oper. ManualThe coolant level is too low.Add coolant (page 255).
Comply with all warnings while doing so.
If you have to add coolant frequently, have the cooling
system checked by an authorized Mercedes-Benz Center
immediately.
•The cooling fan for the coolant
is malfunctioning.Observe the coolant temperature gauge in the instru-
ment cluster (
page 29).
If the coolant temperature is under 248°F (120°C), you
may continue driving to the nearest specialist workshop.
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.
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
Limited Warranty.
Do not drive without sufficient amount of coolant
in the cooling system. The engine will overheat
causing major engine damage.

336 Practical hints
What to do if ...
Left displayRight displayPossible cause/
consequencePossible solution
•Coolant
Stop car –

Turn engine off
The coolant is too hot.
Among other possible causes,
the poly-V-belt could be
broken.Stop the vehicle in a safe location or as soon as it is safe to
do so.
Turn off the engine.
Check the poly-V-belt.
If it is broken:
Do not continue to drive. Otherwise, the engine will over-
heat due to an inoperative water pump which may result in
damage to the engine. Contact an authorized
Mercedes-Benz Center.
If it is intact:
Wait for the message to disappear before restarting the
engine.
Doing otherwise could result in serious engine damage that
is not covered by the Mercedes-Benz Limited Warranty.
(Continued on next page)

337 Practical hints
What to do if ...
During severe operating conditions and
stop-and-go city traffic, the coolant tem-
perature may rise close to 248°F (120°C).
Left displayRight displayPossible cause/
consequencePossible solution
Observe the coolant temperature gauge in the
instrument cluster (
page 29).
If the temperature rises again:
Contact an authorized Mercedes-Benz Center
immediately.
Warning!G
Driving when your engine is overheated 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 which can occur just by open-
ing the 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 engine damage
which is not covered by the Mercedes-Benz
Limited Warranty.

339 Practical hints
What to do if ...
Left displayRight displayPossible cause/
consequencePossible solution
±Visit
workshopCertain electronic systems are
unable to relay information to
the control system. The follow-
ing systems may have failed:

Coolant temperature gauge

Tachometer
Have the electronic systems checked by an authorized
Mercedes-Benz Center immediately.
Fuel system
malfunction
Visit
workshopThe fuel cooling system is
malfunctioning.Contact an authorized Mercedes-Benz Center
immediately.
:Engine oil pressure
Visit
workshopThere is no oil in the engine.
There is a danger of engine
damage.Stop your vehicle immediately in a safe location.
Switch off the engine.
Do not drive any further.
Contact an authorized Mercedes-Benz Center
immediately.
!The engine oil level warning 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.

Technical data
Spare parts service
Warranty coverage
Identification labels
Layout of poly-V-belt drive
Engine
Rims and tires
Electrical system
Main dimensions
Weights
Fuels, coolants, lubricants, etc.

379 Technical data
Layout of poly-V-belt drive
Layout of poly-V-belt drive
The SLR has two poly-V-belts (belt one
shown in purple/belt two shown in black).
1Idler pulley
2Automatic belt tensioner
3Power steering pump
4Air conditioning compressor
5Idler pulley
6Crankshaft
7Coolant pump
8Generator (alternator)
9Idler pulley
aAutomatic belt tensioner
bSupercharger

389 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
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 ser-
vice fluids from coming into direct contact
with your skin or clothing.
If a service fluid is swallowed, contact a
physician immediately.
CapacityFuels, coolants, lubricants, etc.
Engine with oil filter9.0 US qt (8.5 l)Approved engine oils
Automatic transmission8.5 US qt (8.0 l)MB Automatic Transmission Fluid
Rear axle2.3 US qt (2.2 l)Hypoid gear oil SAE 75 W 85
Power steeringapprox. 1.15 US qt (1.1 l)MB Power Steering Fluid
(Pentosin CHF 11S)
Brake system1.6 US qt (1.5 l)MB Brake Fluid (DOT 4+)

390 Technical data
Fuels, coolants, lubricants, etc.
CapacityFuels, coolants, lubricants, etc.
Cooling systemapprox. 10.6 US qt (10.0 l)MB 325.0 Anticorrosion/Antifreeze
Low temperature cooling system
Mercedes-Benz SLR McLaren
Mercedes-Benz SLR McLaren 722 Edition
approx. 5.3 US qt (5.0 l)
approx. 6.3 US qt (6.0 l)MB 325.0 Anticorrosion/Antifreeze
MB 325.0 Anticorrosion/Antifreeze
Fuel tank
including a reserve of25.6 US gal (97.0 l)
3.2 US gal (12.0 l)Premium unleaded gasoline:
Minimum Posted Octane 91
(Avg. of 96 RON/86 MON)
Air conditioning systemR-134a refrigerant and special PAG lubricant
oil (never R-12)
Windshield washer and headlamp cleaning
system7.4 US qt (7 l)MB Windshield Washer Concentrate1
1Use 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. Follow suggested mixing ratios (page 397).