accessories, the maximum load and the
weight of the optional equipment installed at
the factory.
Kilopascal (kPa)
Metric unit for tire pressure. 6.9 kPa is the
equivalent of 1 psi. Another unit for tire
pressure is bar. 100 kilopascal (kPa) is the
equivalent of 1 bar.
Load index
In addition to the load bearing index, the load
index may also be imprinted on the sidewall
of the tire. This specifies the load bearing
capacity more precisely.
Curb weight
The weight of a vehicle with standard
equipment, including the maximum capacity
of fuel, oil and coolant and also includes the
air-conditioning system and optional
equipment if these are installed on the
vehicle, but does not include passengers or
luggage.
Maximum tire load
The maximum tire load is the maximum
permissible weight in kilograms or lbs for
which a tire is approved.
Maximum permissible tire pressure
Maximum permissible tire pressure for one
tire.
Maximum load on one tire
Maximum load on one tire. This is calculated
by dividing the maximum axle load of one axle
by two.
PSI (pounds per square inch)
Standard unit of measurement for tire
pressure.
Aspect ratio
Relationship between tire height and tire
width in percent.
Tire pressure
This is pressure inside the tire applying an
outward force to every square inch of the
tire's surface. The tire pressure is specified in
pounds per square inch (psi), in kilopascal
(kPa) or in bar. The tire pressure should only
be corrected when the tires are cold. For this,
the vehicle must have been stationary for at
least 3 hours or not have traveled more than
1.6 km (1 mile) in this time.
Tire tread
The part of the tire that comes into contact
with the road.
Tire bead
The tire bead ensures that the tire sits
securely on the wheel. There are several steel
wires in the bead to prevent the tire from
coming loose from the wheel rim.
Sidewall
The part of the tire between the tread and the
tire bead.
Weight of optional extras
The combined weight of those optional extras
that weigh more than the replaced standard
part and more than 2.3 kg (5 lbs). These
optional extras, such as high-performance
268Definitions for tires and loadingWheels and tires
ProCarManuals.com
CapacitiesVehicle modelCapacityFuel, coolant,
lubricants etc.Engine oil and
filterG 5509.5 US qt (9.0 l)Approved engine
oilsG 55 AMG9.0 US qt (8.5 l)Power steeringAll modelsApproximately 1.06 US qt
(1.0 l)MB power steering
fluid or approved
Dexron III ATFCooling systemG 550Approximately 12.8 US qt
(12.1 l)MB 325.0 corrosion
inhibitor/antifreeze
agentG 55 AMGApproximately 13.4 US qt
(12.7 l)Tank capacityG 55025.4 US gal (96.0 l)Premium-grade
unleaded gasoline
(at least 91 octane,
average value
between 96 RON/
86 MON)G 55 AMG25.1 US gal (95.0 l)ReserveAll modelsApproximately 5.3 US gal
(20.0 l)Air-
conditioning
systemAll models—Refrigerant R134a
and special PAG
lubricant (never
R 12)Windshield/
headlamp
cleaning
systemAll models7.4 US qt (7.0 l)MB windshield
washer
concentrate 25
( Y page 281)
Mixing ratio for
washer fluid
( Y page 281)Fuel
Important safety notesGWarning
Gasoline is highly flammable and poisonous.
It burns violently and can cause serious
personal injury.
Never allow sparks, flames or smoking
materials near gasoline.
Turn off the engine before refueling.
Whenever you are around gasoline, avoid
inhaling fumes and any skin or clothing
contact.25 Mixed with water or premixed washer fluid with antifreeze protection.Service products and capacities277Technical dataZProCarManuals.com
