2004 MERCEDES-BENZ G55AMG fuel additives

Contents
Battery ............................................... 311
Charging the battery .................... 311
Disconnecting the battery ............ 312
Reconnecting the battery ............. 312
Jump starting ..................................... 313
Towing the vehicle ............................. 315
Transporting the vehicle............... 317
Towing the vehicle -
various problem scenarios ........... 317
Front towing eye .......................... 318
Rear towing eye ........................... 318
Freeing a stranded vehicle ........... 318
Fuses ................................................. 319
Fuse box in passenger
compartment ............................... 319
Fuse box in battery box................ 319
Fuse box in front passenger
footwell ........................................ 320
Fuse box in middle tunnel ............ 321
Technical data.................................. 323
Spare parts service............................. 324
Warranty coverage ............................. 325
Loss of Service and Warranty
Information Booklet ...................... 325
Identification labels ............................ 326
Layout of poly-V-belt drive .................. 327
G 500/G 55 AMG ......................... 327
Engine ................................................ 328
Rims and tires .................................... 329
Rims and Tires ............................. 329
Spare wheels ................................ 330
Electrical system ................................ 331
Main dimensions, vehicle weights
and ratings ......................................... 332
Main dimensions........................... 332
Vehicle weights and ratings .......... 332Fuels, coolants, lubricants, etc. .......... 333
Capacities ..................................... 333
Engine oils .................................... 334
Engine oil additives ....................... 335
Air conditioning refrigerant ........... 335
Brake fluid .................................... 335
Premium unleaded gasoline.......... 335
Fuel requirements......................... 336
Gasoline additives......................... 336
Coolants ....................................... 336
Anticorrosion/antifreeze .............. 337
Windshield/rear window washer
system and headlamp cleaning
system .......................................... 339
Consumer information........................ 340
Uniform tire quality grading .......... 340
Technical terms............................... 343Index................................................. 349

335 Technical data
Fuels, coolants, lubricants, etc.
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 is 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 Light Truck Cen-
ter will provide you with additional
information.
Premium unleaded 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.

336 Technical dataFuels, coolants, lubricants, etc.Fuel requirements
Use only premium unleaded meeting
ASTM standard D 439:

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 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 other specific fuel additives
with fuel. This only results in unnecessary
cost and may be harmful to the engine op-
eration.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 -35°F (-37°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).

357 Index
Flexible Service System (FSS) 242, 344
Fog lamp, rear 107, 296
Fog lamps, front 107
Messages in display 275
Switching on 107
4-ETS 74, 77
Front airbags 61
Front axle differential lock
Switching on 151
Front fog lamps
Replacing bulbs 295, 299
Front lamps
Messages in display 274, 276
Replacing bulbs 295, 297
Switching on 104
Front seat head restraints
Installing 95
Removing 95
Front towing eye 318
Front turn signal lamp
Replacing bulbs 300FSS (Flexible Service System) 242, 344
Fuel 225
Additives 336
Fuel reserve warning lamp 258
Gasoline additives 336
Premium unleaded gasoline 225,
333, 335
Refueling 224
Requirements 336
Reserve warning 25
Technical data 333
Fuel additives 336
Fuel consumption statistics
After start 136
Since last reset 136
Fuel filler flap 224
Locking 224
Opening 290
Unlocking 224
Fuel requirements 336Fuel reserve tank
Message in display 273
Fuel tank
Capacity 333
Filler flap 224
Fuels, coolants, lubricants, etc.
Capacities 333
Functions (control system) 116, 119
Resetting 125
Fuse box 319, 320, 321
Fuses 319
Fuse box in battery box 319
Fuse box in front passenger
footwell 320
Fuse box in middle tunnel 321
Fuse box in passenger
compartment 319
G
Garage door opener 29, 198
Gasoline see Fuel
Gasoline additives 336
GAWR 344

370 IndexTail lamps 301
Cleaning 246
Replacing bulbs 296
Tailgate
Closing 90
Message in display 282
Opening 89, 90
Separately locking 90
Separately unlocking 91
Tailgate lock 284
Unlocking in an emergency 287
Tar stains 245
Technical data
Air conditioning refrigerant 335
Brake fluid 335
Coolant 333
Coolants 336
Electrical system 331
Engine 328
Engine oil 334Engine oil additives 335, 340
Fuel requirements 336
Fuels 333
Gasoline additives 336
Lubricants 333
Main dimensions 332
Premium unleaded gasoline 335
Rims and tires 329
Weights and ratings 332
Windshield and headlamp washer
system 334, 339
Tele Aid 190
Emergency calls 191
Information 194
Initiating an emergency call
manually 193
Messages in display 281
Remote door unlock 197
Roadside Assistance 193
Stolen vehicle tracking services 197
System self-check 191
Tele Aid System 190
Upgrade signals 196Tele Aid System 347
Telematics* 347
Telephone
Answering a call 138
Dialing a number from the phone
book 139
Ending a call 138
Loading phone book 139
Operating 137
Redialing 139
Telephone* 26, 189
Messages in display 281
Temperature
Display mode 127
Grades of tires 341
Setting interior temperature 158
Setting units in display 127
Tires 238
Text messages
Multifunction display 261
Tie-down rings (Cargo
compartment) 182
Tightening torque 347