2007 MERCEDES-BENZ SLR CLASS fuel pressure

340 Practical hints
What to do if ...
Left displayRight displayPossible cause/
consequencePossible solution
AReserve fuelThe fuel level has fallen into the
reserve range.Refuel at the next gas station (page 247).
Fuel cap
openA loss of pressure has been
detected in the fuel system.
The fuel cap may not be closed
properly or the fuel system may
be leaky.Check the fuel cap (page 247).
If it is not closed properly:
Close the fuel cap.
If it is closed properly:
Have the fuel system checked by an authorized
Mercedes-Benz Center.
ìTel
Enter PINYou have not yet entered your
PIN in you telephone.Enter the PIN for your SIM card.
IRemove
keyYou have forgotten to remove
the SmartKey.Remove the SmartKey from the starter switch.
Replace
keyNo additional code available for
the SmartKey.Have the SmartKey checked. Contact an authorized
Mercedes-Benz Center.

366 Practical hints
Flat tire
Contact an authorized Mercedes-Benz
Center as soon as possible to obtain a
new TIREFIT kit.
Bring used TIREFIT materials to an
authorized Mercedes-Benz Center for
proper disposal.
Replace your TIREFIT container every
4 years. Replacement containers are
available at your authorized
Mercedes-Benz Center.
Warning!G
Follow recommend tire inflation pressures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly,
adversely affect handling and fuel economy,
and are more likely to fail from being
overheated.
Do not overinflate tires. Overinflated tires
can adversely affect handling and ride
comfort, wear unevenly, increase stopping
distance, and result in sudden deflation
(blowout) because they are more likely to
become punctured or damaged by road
debris, potholes etc.
Do not overload the tires by exceeding the
specified load limit or vehicle capacity
weight as indicated on the placard on the
driver’s door B-pillar. Overloading the tires
can overheat them, possibly causing a
blowout.
Warning!G
Do not exceed vehicle speed of 50 mph
(80 km/h). A TIREFIT repair is not designed
to operate at higher speeds.
The sticker must be attached on the instru-
ment cluster where it will be easily seen by
the driver.
Vehicle handling characteristics may
change. Adapt your driving accordingly.


381 Technical data
Rims and tires
Rims and tires
!For safety reasons, only use tires and rims
which have been tested and approved by
Mercedes-Benz for use on SLR vehicles. Tires
approved by Mercedes-Benz are developed to
provide best possible performance in conjunc-
tion with the driving safety systems on your
vehicle such as ABS or ESP
®.
!Using tires and rims other than those ap-
proved by Mercedes-Benz can have detrimental
effects, such as

Poor handling characteristics

Increased noise

Increased fuel consumption
Moreover, tires and rims not approved by
Mercedes-Benz may, under load, exhibit dimen-
sional variations and different tire deformation
characteristics that could cause them to come
into contact with the vehicle body or axle parts.
This may result in damage to the tires or the
vehicle.
iFurther information on tires and rims is
available at any authorized Mercedes-Benz Cen-
ter. A placard with the recommended tire infla-
tion pressures is located on the driver’s door
B-pillar. Some vehicles may have supplemental
tire pressure information for driving at high
speeds (
page 268) or for vehicle loads less
than the maximum loaded vehicle condition. If
such information is provided, it can be found on
the placard located on the inside of the fuel filler
flap. The tire pressure should be checked regu-
larly and should only be adjusted on cold tires.
Follow tire manufacturer’s maintenance
recommendation included with vehicle.

393 Technical data
Fuels, coolants, lubricants, etc.
Fuel requirements
Only use premium unleaded fuel:

The octane number (posted at the
pump) must be 91 min. It is an average
of both the Research Octane Number
(RON) and the Motor Octane Number
(MON): (RON+MON)/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 lossIn 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
(USA only) or contact an authorized
Mercedes-Benz Center 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 are not
covered by the Mercedes-Benz Limited
Warranty.
For a listing of approved products, refer to the
Factory Approved Service Products pamphlet
(USA only) or contact an authorized
Mercedes-Benz Center.

401 Technical terms
Instrument cluster
The displays and indicator/warning
lamps in the driver’s field of vision, in-
cluding the tachometer, speedometer,
engine temperature and fuel gauge.
Kickdown
Depressing the accelerator past the
point of resistance shifts the transmis-
sion down to the lowest possible. This
very quickly accelerates the vehicle
and should not be used for normal
acceleration needs.
Kilopascal (kPa)
(
page 285)
Maximum load rating
(
page 285)
Maximum loaded vehicle weight
(
page 285)
Maximum tire inflation pressure
(
page 285)MON
(M
otor Octane Number)
The Motor Octane Number for gasoline
as determined by a standardized
method. It is an indication of a gaso-
line's ability to resist undesired detona-
tion (knocking). The average of both
the MON (Motor Octane Number) and
RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.
Multifunction display
Two display fields in the instrument
cluster used to present information
provided by the control system.
Multifunction steering wheel
Steering wheel with buttons for
operating the control system.
Normal occupant weight
(
page 285)OCS
(O
ccupant Classification System)
The system automatically turns the
front passenger front air bag on or off
based on the classified occupant size
category determined by weight sensor
readings from the seat.
Overspeed range
Engine speeds within the red marking
on the tachometer dial. Avoid this
engine speed range, as it may result in
serious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.

413 Index
Interior rear view mirror 44
Auto-dimming 182
Interior storage spaces see Storage com-
partments
J
Jacking up the vehicle 362
Jump starting 367
K
Key, Mechanical 355
Key, SmartKey
Battery check lamp 100
Checking the batteries 101
Factory setting 99
Locking/unlocking 98
Locking/unlocking, Global setting 99
Locking/unlocking, Selective
setting 100
Loss of 101
Messages in the multifunction
display 340
Opening and closing the
windows 201, 202
Positions in starter switch 40Remote control 98
Replacing the batteries 357
Turning off the engine 56
Unlocking, Trunk 101
Kickdown 173, 401
Kilopascal 285
Knee air bags 66
L
Labels
Certification 378
Emission control label 378
Vacuum line routing 378
Lamps
Exterior 359
Lamps, exterior
Messages in the multifunction
display 341Lamps, indicator and warning
ABS 29, 302
ABS/ESP
®29, 300
Airbrake 29, 307
Battery, SmartKey 100
Brake 29, 303
Center console 312
Coolant 29, 306
Engine malfunction 29, 304
Engine oil temperature 29, 307
Fog lamps 109
Fuel reserve 29, 307
Gearshift 29, 307
High beam 29
Instrument cluster 300
Low tire pressure telltale 29, 311
PASSENGER AIR BAG OFF 70, 312
Seat belt telltale 29, 308
Seat belts 308–309
SRS 29, 61, 310
Turn signals 29
Language, Setting 133