2006 MERCEDES-BENZ SLR coolant

325 Practical hints
What to do if ...
Left display
Right display
Possible cause/
consequence
Possible solution
Ï
Coolant
Stop, put 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 over-
heat 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 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 instru-
ment cluster (
page 29).

Drive immediately to the nearest authorized
Mercedes-Benz Center.
Coolant
Visit
workshop
The cooling fan for the coolant
is malfunctioning.

Observe the coolant temperature gauge in the instru-
ment cluster (
page 29).

Have the fan replaced immediately.

327 Practical hints
What to do if ...
Left display
Right display
Possible cause/
consequence
Possible solution
G
Display malfunc-
tion
Visit
workshop
The displays for several sys-
tems have malfunctioned.
Some systems themselves may
also have malfunctioned.

Continue driving with added caution.
When the display is malfunctioning, warnings and mal-
function messages might not be displayed.

Have the electronic systems checked by an authorized
Mercedes-Benz Center immediately.
Failure to follow these instructions increases the risk of an
accident.
±
Display malfunc-
tion
Visit
workshop
Certain electronic systems are
unable to relay information to
the control system. The follow-
ing systems may have failed:

Coolant temperature gauge


Tachometer


Cruise control display

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

Close the doors.

Technical dataSpare 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.

369 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

377 Technical data
Fuels, coolants, lubricants, etc.
Fuels, coolants, lubricants, etc.
CapacitiesVehicle components and their respective
lubricants must match. Therefore use only
products tested and approved by
Mercedes-Benz. Please refer to the Factory Approved
Service Products pamphlet, or inquire at
your Mercedes-Benz Center.
Capacity
Fuels, coolants, lubricants, etc.
Engine with oil filter
9.5 US qt (9.0 l)
Approved engine oils
Automatic transmission
9.1 US qt (8.6 l)
MB Automatic Transmission Fluid
Rear axle
1.9 US qt (1.8 l)
Hypoid gear oil SAE 75 W 85
Power steering
approximately 1.15 US qt (1.1 l)
MB Power Steering Fluid (Pentosin CHF 11S)
Front wheel hubs
approximately 3.0 oz (85 g) each
High temperature roller bearing grease
Brake system
1.6 US qt (1.5 l)
MB Brake Fluid (DOT 4+)
Cooling system
approximately 10.6 US qt (10.0 l)
MB 325.0 Anticorrosion/Antifreeze
Low temperature cooling system
approximately 5.3 US qt (5.0 l)
MB 325.0 Anticorrosion/Antifreeze
Fuel tank
including a reserve of
25.6 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 system
R-134a refrigerant and special PAG lubricant
oil (never R-12)
Windshield washer and headlamp cleaning system
7.4 US qt (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. Follow suggested mixing ratios (page 383).

378 Technical dataFuels, 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. For a listing of approved engine
oils and oil filters, refer to the Factory
Approved Service Products pamphlet, or
contact an authorized Mercedes-Benz
Center.
Engine oil additives
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.Air conditioning refrigerant
R-134a (HFC) refrigerant and special PAG
lubricating oil are used in the air condition-
er system.
Never use R-12 (CFC) or mineral-based lu-
bricating oil. Otherwise damage to the
system will occur.
!Using engine oils and oil filters of
specification other than those express-
ly required for the Maintenance Sys-
tem, or changing of oil and oil filter at
change intervals longer than those
called for by the Maintenance System
will result in engine damage not cov-
ered by the Mercedes-Benz Limited
Warranty.
Please follow Maintenance System rec-
ommendations for scheduled oil
changes. Failure to do so will result in
engine damage not covered by the
Mercedes-Benz Limited Warranty.

379 Technical data
Fuels, coolants, lubricants, etc.
Brake fluid
During vehicle operation, the boiling point
of the brake fluid is continuously reduced
through the absorption of moisture from
the atmosphere.
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
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 Mainte-
nance Booklet for replacement interval.
Warning!
G
Gasoline is highly flammable and poisonous.
It burns violently and can cause serious
injury. Whenever you are around gasoline,
avoid inhaling fumes and skin contact, extin-
guish all smoking materials. Never allow
sparks, flame or smoking materials near
gasoline!
!To maintain the engine’s durability and
performance, premium unleaded gaso-
line must be used. If premium unleaded
is not available and low octane fuel is
used, follow these precautions:

have the fuel tank only partially
filled with unleaded regular and fill
up with premium unleaded as soon
as possible


avoid full throttle driving and abrupt
acceleration


do not exceed an engine speed of
3000 rpm if the vehicle is loaded
with a light load such as two per-
sons and no luggage


do not exceed
2/3 of maximum ac-
celerator pedal position if the vehi-
cle is fully loaded or operating in
mountainous terrain

380 Technical dataFuels, coolants, lubricants, etc.Fuel requirements
Only use premium unleaded fuel:

The octane number (posted at the
pu m p) m us t b e 91 mi n. It is an a vera ge
of both the Research (R) octane num-
ber and the Motor (M) octane number:
(R+M)/2). This is also known as the
ANTI-KNOCK INDEX.
Unleaded gasoline containing oxygenates
such as ethanol, IPA, IBA and TBA can be
used provided the ratio of any one of these
oxygenates to gasoline does not exceed
10%; MTBE must not exceed 15%.
The ratio of methanol to gasoline must not
exceed 3% plus additional cosolvents.Using mixtures of ethanol and methanol is
not allowed. Gasohol, which contains
10% ethanol and 90% unleaded gasoline,
can be used.
These blends must also meet all other fuel
requirements, such as resistance to spark
knock, boiling range, vapor pressure, etc.
Gasoline additives
A major concern among engine
manufacturers is carbon build-up caused
by gasoline. Mercedes-Benz recommends
only the use of quality gasoline containing
additives that prevent the build up of
carbon deposits.
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
engine performance problems such as:

Warm-up hesitation


Unstable idle


Knocking/pinging


Misfire


Power loss
In areas where carbon deposits may be
encountered due to lack of availability of
gasolines which contain these additives,
Mercedes-Benz recommends the use of
additives approved by us for use on
Mercedes-Benz vehicles. Refer to Factory
Approved Service Products pamphlet for a
listing of approved product(s). Follow
directions on product label.
Do not blend other fuel additives with fuel.
This only results in unnecessary cost and
may be harmful to engine operation.
Damage or malfunction resulting from
poor fuel quality or from blending
additional fuel additives other than those
tested and approved by us for use on
Mercedes-Benz vehicles listed in the
Factory Approved Service Products
pamphlet are not covered by the
Mercedes-Benz Limited Warranty.