Tire Ply Material; Tire And Loading Terminology - Mercedes-Benz 2005 C 230 Kompressor Sport Operator's Manual

Tire ply material

1 Plies in sidewall
2 Plies under tread
i
For illustration purposes only. Actual
data on tires is specific to each vehicle
and may vary from data shown in above
illustration.
This marking tells you about the type of
cord and number of plies in the sidewall
and under the tread.

Tire and loading terminology

Accessory weight
The combined weight (in excess of those
standard items which may be replaced) of
automatic transmission, power steering,
power brakes, power windows, power
seats, radio, and heater, to the extent that
these items are available as
factory-installed equipment (whether
installed or not).
Air pressure
The amount of air inside the tire pressing
outward on each square inch of the tire.
Air pressure is expressed in pounds per
square inch (psi), or kilopascal (kPa) or
bars.
Operation
Tires and wheels
Aspect ratio
Dimensional relationship between tire
section height and section width
expressed in percentage.
Bar
Another metric unit for air pressure. There
are 14.5038 pounds per square inch (psi)
to 1 bar; there are 100 kilopascals (kPa)
to 1 bar.
Bead
The tire bead contains steel wires wrapped
by steel cords that hold the tire onto the
rim.
Cold tire inflation pressure
Tire inflation pressure when your vehicle
has been sitting for at least three hours or
driven no more than one mile (1.6 km).
327