2003 MERCEDES-BENZ G55AMG fuel pressure

313 Technical data
Rims and tires
Rims and tires
Use only tires and rims which have been
specifically developed for your vehicle and
tested and approved by Mercedes-Benz.
Other tires and rims can have detrimental
effects, such as

poor handling characteristics


increased noise


increased fuel consumption
Tires and Spare wheel
!Moreover, tires and rims not approved
by Mercedes-Benz may, under load, ex-
hibit dimensional variations and differ-
ent tire deformation characteristics
under load that could cause them to
come into contact with the vehicle
body or axle parts. Damage to the tires
or the vehicle may be the result.
iFurther information on tires and rims is
available at any authorized
Mercedes-Benz Light Truck Center. A
tire inflation pressure table is located
on the fuel filler cap of the vehicle. The
tire pressure should be checked regu-
larly and should only be adjusted on
cold tires. Follow tire manufacturer’s
maintenance recommendation includ-
ed with vehicle.
G500
G55AMG
Rims (light alloy)
7½ Jx18 H2 ET43
9½ Jx18 EH2 ET50
Wheel offset
1.69 in (43 mm)
1.97 in (50 mm)
All season tires (radial-ply tires)
265/60 R18 110V
285/55 R18 113V

318 Technical dataFuels, 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. 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
Fuel requirements
Use only premium unleaded meeting
ASTM standard D 439:

The octane number (posted at the
pump) must be 91 min. It is an average
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..
!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.

350 IndexTire inflation pressure
Checking 225
Tire speed rating 201, 329
Tire traction 201
Tires 224, 313, 322
Consumer information 322
Direction of rotation 225
Driving instructions 200
Retreads 224
Rims and tires 313
Service life 225
Temperature 226
Temperature grades 323
Tread depth 228
Wear pattern 226
Winter 228
Tools 268
Tow-away alarm 27, 80
Arming 80
Disarming 80
Disarming for transport 80
Towing eye, front 302
Towing eye, rear 302
Towing the vehicle 299
Stranded vehicle 302
Various faults 301Tracking services
For stolen vehicle 191
Traction 322, 329
Transfer case 141, 329
Gear range 141
Messages in the multifunction
display 142
Switching 141
Transfer case differential lock
Switching on 145
Transmission see
Automatic transmission 220
Transmission selector lever 275
Unlocking manually 275
Tread depth (tires) 228
Treadwear 322
Trip computer 130
Trip odometer
Resetting 109
Trunk see Cargo compartment 87, 88
Turn signal lamp, side
Replacing bulbs 284
Turn signal lamps
Replacing bulbs 279, 280Turn signals 23, 46
Additional in mirrors 279
Cleaning lenses 234
Front bulbs 279
Indicator lamps 25
Rear bulbs 280
Turning off
Engine 51
U
Units
Setting speedometer units 122
Setting temperature units 122
Unlocking 32, 84
Driver’s door in an emergency 272
Fuel filler flap 214
Global 85
In an emergency 272
Selective settings 85
Transmission selector lever
manually 275
Vehicle in an emergency 190
With the SmartKey 32
Upgrade signals
Tele Aid 189
Uphill driving
Cruise control 163