fuel additives MERCEDES-BENZ SL500 2003 R230 Owner's Manual

ContentsPractical hints.................................. 249
What to do if … .................................. 250
Lamps in instrument cluster ......... 250
Messages in the display ............... 257
Where will I find ...?............................ 288
First aid kit ................................... 288
Vehicle tool kit ............................. 288
Locking/unlocking in an emergency.. 290
Unlocking the vehicle ................... 290
Locking the vehicle ...................... 292
Lowering the Easy Pack feature
manually ....................................... 292
Changing batteries ....................... 293
Replacing bulbs ................................. 295
Bulbs ............................................ 295
Replacing bulbs for front lamps.... 298
Replacing bulbs for rear lamps ..... 299
Replacing wiper blades ...................... 301
Removing ..................................... 301
Installing....................................... 301
Flat tire .............................................. 302
Preparing the vehicle.................... 302
Sealing tires with TIREFIT kit 1 ..... 302
Sealing tires with TIREFIT kit 2 ..... 308
Mounting the spare wheel ............ 312Batteries ............................................ 319
Disconnecting the batteries ......... 320
Removing the batteries ................ 321
Charging and reinstalling
batteries....................................... 321
Reconnecting the batteries .......... 321
Jump starting ..................................... 323
Towing the vehicle ............................. 325
Installing towing eye bolt ............. 327
Fuses ................................................. 329
Main fuse box............................... 329
Technical data................................. 331
Spare parts service ............................ 332
Warranty coverage............................. 333
Loss of Service and Warranty
Information Booklet ..................... 333
Identification labels ........................... 334
Layout of poly-V-belt drive ................. 335
SL 500 ......................................... 335
SL 55 AMG ................................... 335
Engine................................................ 336
Rims and tires.................................... 337
Same size tires ............................. 337
Mixed size tires ............................ 338Spare wheel ................................. 338
Electrical system ............................... 339
Main dimensions ............................... 340
Weights ............................................. 341
Fuels, coolants, lubricants, etc. ......... 342
Capacities .................................... 342
Engine oils ................................... 343
Engine oil additives ...................... 343
Air conditioner refrigerant............ 343
Brake fluid.................................... 343
Premium unleaded gasoline ......... 344
Fuel requirements ........................ 344
Gasoline additives ........................ 344
Coolants ...................................... 345
Windshield and headlamp washer
system ......................................... 347
Consumer information ....................... 348
Uniform tire quality grading ......... 348
Technical terms............................... 351Index................................................. 357

343 Technical data
Fuels, coolants, lubricants, etc.
Engine oils
Engine oils are specifically tested for their
suitability in our engines. Therefore, only
use engine oils recommended by
Mercedes-Benz. Information on recom-
mended brands is available in the Factory
Approved Service Products pamphlet, or at
your authorized Mercedes-Benz Center.
Please follow FSS recommendations for
scheduled oil changes. Failure to do so
could result in engine damage not covered
by the Mercedes-Benz Limited Warranty.
Engine oil additives
Do not blend oil additives with engine oil.
They may be harmful to the engine opera-
tion.
Damage or malfunctions resulting from
blending oil additives are not covered by
the Mercedes-Benz Limited Warranty.Air conditioner 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.
Brake fluid
During vehicle operation, the boiling point
of the brake fluid is continuously reduced
through the absorption of moisture from
the atmosphere. Under extremely strenu-
ous operating conditions, this moisture
content can lead to the formation of bub-
bles in the system, thus reducing the sys-
tem’s efficiency.
Therefore, the brake fluid must be re-
placed every two years, preferably in the
spring.
Only brake fluid approved by
Mercedes-Benz is recommended. Your au-
thorized Mercedes-Benz Center will pro-
vide you with additional information.
Model
Capacity
Fuels, coolants, lubricants etc.
Hydraulic system for retractable hardtop
0.42 US qt (0.4 l)
MB Hydraulic Fluid
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 346).

344 Technical dataFuels, coolants, lubricants, etc.Premium unleaded gasoline
Fuel requirements
Only use Premium unleaded meeting
ASTM standard D 439:

The octane number (posted at the
pu mp ) m us t b e 91 mi n. It is an a ve ra 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 not to 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 manufac-
turers is carbon build-up caused by gaso-
line. Mercedes-Benz recommends only the
use of quality gasoline containing additives
that prevent the build up of carbon depos-
its.
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
Do not blend other specific fuel additives
with fuel. This only results in unnecessary
cost and may be harmful to the engine op-
eration.
!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

345 Technical data
Fuels, coolants, lubricants, etc.
Damage or malfunctions resulting from
poor fuel quality or from blending specific
fuel additives are not covered by the
Mercedes-Benz Limited Warranty.Coolants
The engine coolant is a mixture of water
and anticorrosion / antifreeze, which pro-
vides:

corrosion protection


freeze protection


boiling protection (by increasing the
boiling point)
The cooling system was filled at the factory
with a coolant providing freeze protection
to approximately -22°F (-30°C) and corro-
sion protection.
If the antifreeze mixture is effective to
-22°F (-30°C), the boiling point of the cool-
ant in the pressurized cooling system is
reached at approximately 266°F (130°C).The coolant solution must be used year
round to provide the necessary corrosion
protection and increase in the boil-over
protection. You should have it replaced ev-
ery 15 years or 150 000 miles (250 000
km), whichever comes first.
Coolant system design and coolant used
stipulate the replacement interval. The
above replacement interval is only applica-
ble if MB 325.0 anticorrosion/antifreeze
solution or other Mercedes-Benz approved
products of equal specification (see Facto-
ry Approved Service Products pamphlet)
are used to renew the coolant concentra-
tion 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 that
the mixture is in accordance with label in-
structions.
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 your authorized Mercedes-Benz
Center.

363 Index
Fuel 225
Additives 344
Fuel requirements 344
Fuel reserve warning lamp 21, 255
Gasoline additives 344
Premium unleaded gasoline 225,
342, 344
Fuel consumption statistics
After start 132
Since reset 132
Fuel filler flap 225
Locking 225
Opening 225
Unlocking 225
Fuel requirements 344
Fuel reserve tank
Message in display 286
Fuel tank
Filler flap 225
Fuels, coolants, lubricants etc. -
capacities 342
Functions (control system) 111
Fuse chart 288, 329Fuses 329
Fuse chart 288, 329
Fuse extractor 288, 329
Main fuse box 329
Spare fuses 288, 329
G
Garage door opener 25, 208
Gasoline see Fuel
Gear range
Automatic transmission 139
Indicator 21
Limiting 139
Shifting into optimal 138
Glove box 19, 190
Closing 190
Opening 190
GPS 353
H
Hands-free microphone 25
Hardtop open/close control 24
Hardtop see Retractable hardtop
Hardtop switch 160
Hazard warning flasher 105
Hazard warning flasher switch 23Head restraints
Adjusting height 33
Adjusting tilt 34
Headlamp switch-off delay see Delayed
switch-off, exterior lamps
Headlamps
Automatic mode 103
Headlamp cleaning system 146, 233
Manual mode 103
Refilling washer fluid 233
Head-thorax airbag 65, 353
Heated steering wheel* 197
Height adjustments
Head restraints 33
Seats 33
Steering column 35
Vehicle level 184
High beam flasher 105
High beam headlamp indicator 21
High beam headlamps 43, 102, 296
Replacing bulbs 298
Switching on 104
Hood 227
Messages in display 279
Horn 19
Hydroplaning 219