Wheels and tires, Tire labeling – Mercedes-Benz G-Class 2015 User Manual

Page 328

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Maximum loaded vehicle weight

The maximum weight is the sum of:

R

the curb weight of the vehicle

R

the weight of the accessories

R

the load limit

R

the weight of the factory installed optional

equipment

Kilopascal (kPa)

Metric unit for tire pressure. 6.9 kPa corre-

sponds to 1 psi. Another unit for tire pressure

is bar. 100 kilopascals (kPa) are the equiva-

lent 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 capa-

city more precisely.

Curb weight

The weight of a vehicle with standard equip-

ment including the maximum capacity of fuel,

oil and coolant. It also includes the air-condi-

tioning system and optional equipment if

these are installed in the vehicle, but does not

include passengers or luggage.

Maximum load rating

The maximum load rating 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)

A standard unit of measure 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 each square inch of the tire's

surface. The tire pressure is specified in

pounds per square inch (psi), in kilopascals

(kPa) or in bar. The tire pressure should only

be corrected when the tires are cold.

Cold tire pressure

The tires are cold:

R

if the vehicle has been parked without

direct sunlight on the tires for at least three

hours and

R

if the vehicle has not been driven further

than 1 mile (1.6 km)

Tread

The part of the tire that comes into contact

with the road.

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

bead.

Weight of optional extras

The combined weight of those optional extras

that weigh more than the replaced standard

parts and more than 2.3 kg (5 lbs). These

optional extras, such as high-performance

326

Tire labeling

Wheels

and

tires

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