2003 MERCEDES-BENZ CLK55AMG COUPE fuel additives

ContentsFuels, coolants, lubricants, etc. ......... 351
Capacities .................................... 351
Engine oils .................................... 353
Engine oil additives ...................... 353
Air conditioning refrigerant .......... 353
Brake fluid .................................... 353
Premium unleaded gasoline ......... 354
Fuel requirements ........................ 354
Gasoline additives ........................ 354
Coolants ....................................... 355
Windshield and
headlamp washer system ............. 357
Consumer information ....................... 358
Uniform tire quality grading.......... 358
Technical terms............................... 361Index................................................. 367

353 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 conditioning refrigerant
R-134a (HFC) refrigerant and special PAG
lubricating oil are used in the air condition-
ing 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.

354 Technical dataFuels, coolants, lubricants, etc.Premium unleaded gasoline
Fuel requirements
Only use premium unleaded gasoline
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 en-
gine performance problems such as:

Warm-up hesitation


Unstable idle


Knocking/pinging


Misfire


Power loss
Do not blend any 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.

355 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).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
Anticorrosion /Antifreeze should be used
to bring it up to the proper level (have cool-
ing system checked for signs of leakage).
Please make sure that the mixture is in ac-
cordance with label instructions.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.
The coolant solution must be used year
round to provide the necessary corrosion
protection and increase boil-over protec-
tion. You should have it replaced every 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.

376 IndexFront lamps
Messages in display 296–299
Replacing bulbs 317, 318
Switching on 105
Front seat head restraints
Installing 98
Power seat 98
Removing 98
Front seats
Heater* 101
FSS (Flexible Service System) 266, 363
Fuel 251
Additives 354
Fuel reserve warning lamp 280
Gasoline additives 354
Premium unleaded gasoline 251, 352,
354
Requirements 354
Reserve warning 23
Technical data 351
Fuel additives 354
Fuel consumption statistics
After start 136
Since last reset 137Fuel filler flap 251
Locking 251
Opening 313
Unlocking 251
Fuel requirements 354
Fuel reserve tank
Message in display 296
Fuel tank
Capacity 352
Filler flap 251
Fuels, coolants, lubricants etc.
Capacities 351
Functions (control system) 115, 118
Resetting 124
Fuse box 337
Fuse chart 337
Fuse extractor 338
Fuses 337
Auxiliary fuse box in trunk 338
Fuse box in engine compartment 337
Fuse box in passenger compartment
337
Fuse chart 337
Fuse extractor 338
Spare fuses 338G
Garage door opener 27, 235
Erasing in remote control 238
Integrated remote control 236
Rolling code programming 237
Gasoline see Fuel 251
Gasoline additives 354
Gear range 363
Automatic transmission 143
Limiting 143
Shifting into optimal 142
Gear range limit
Canceling 142
Gear selector lever
Cleaning 273
Position 144
Global
Locking 85
Locking with KEYLESS-GO* 90
Unlocking 85
Unlocking with KEYLESS-GO* 89
Global Positioning System (GPS) 363
Glove box 21, 219
Closing 219
Opening 219
Good visibility 149

389 Index
Switching on
Audio system 168
Automatic central locking (control sys-
tem) 133
ESP 78
Front fog lamps 107
Front lamps 105
Hazard warning flasher 108
Headlamps 46
High beams 108
Parking lamps 105
Rapid seat heating* 101
Rear fog lamp 107
Seat heating* 101
Windshield wipers 47
Symbol (Distronic*)
Distance warning function* 122
Synchronizing
Power windows 189
Sliding/pop-up roof 192, 315T
Tachometer 23, 113
Overspeed range 113
Tail lamps
Cleaning 271
Replacing bulbs 317, 322
Tar stains 269
Technical data 353
Brake fluid 353
Coolant 351
Coolants 355
Electrical system 348
Engine 344
Engine oil 353
Engine oil additives 353
Fuel requirements 354
Fuels 351
Gasoline additives 354
Lubricants 351
Main dimensions 349
Premium unleaded gasoline 354
Rims and tires 345Weights 350
Windshield and headlamp washer sys-
tem 357
Windshield and headlamp* washer sys-
tem 352
Tele Aid
Information 232
Initiating an emergency call manually
230
Messages in display 301
Roadside assistance 231
Tele Aid System 227
Tele Aid System 366
Tele Aid* 227
Emergency calls 228
Remote door unlock 234
Stolen vehicle tracking services 235
System self-check 228
Upgrade signals 233
Telematics* 366
Telephone
Emergency call 185