Mercedes Benz 2008 c300 Manuale Utente

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Operation
Tires and wheels
Tire ply material
1 Plies in sidewall
2 Plies under tread
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.
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 3 hours or driv-
en no more than 1 mile (1.6 km). 
Curb weight
The weight of a motor vehicle with stan-
dard equipment including the maximum 
capacity of fuel, oil, and coolant, and, if so 
equipped, air conditioning and additional 
optional equipment, but without passen-
gers and cargo.
i
For illustration purposes only. Actual data 
on tires are specific to each vehicle and may vary 
from data shown in above illustration.