Definitions for tires and loading
342
Maximum load on one tire
Weight of optional extras
Maximum load on one tire. This is calculated The combined weight of those optional extras
by dividing the maximum axle load of one axle that weigh more than the replaced standard
by two.
part and more than 2.3 kilograms (5 lbs).
These optional extras, such as high-
performance brakes, level control, a roof rack
or a high-performance battery, are not
included in the unladen weight and the weight
of the accessories.
PSI (pounds per square inch)
Standard unit of measurement for tire
pressure.
TIN (Tire Identification Number)
Aspect ratio
A unique identification number which can be
used by a tire manufacturer to identify tires,
for example for a product recall, and thus
identify the purchasers. The TIN is made up
of the manufacturer's identity code, tire size,
tire type code and the manufacturing date.
Relationship between tire height and tire
width in percent.
Tire pressure
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 three hours or not have traveled more
than 1.6 km (1 mile) in this time.
Load bearing index
The load bearing index (also load index) is a
code that contains the maximum load bearing
capacity of a tire.
Traction
Traction is the result of friction between the
tires and the road surface.
Tire tread
The part of the tire that comes into contact
with the road.
TWR (permissible trailer drawbar
noseweight)
Tire bead
The TWR is the maximum permissible weight
that the ball coupling of the trailer tow hitch
can support.
The tire bead contains steel wire which is
bound by steel cords that hold the tire on the
wheel rim.
Wear indicator
Sidewall
Narrow bars (tread wear bars) that are
distributed over the tire tread. If the tire tread
is level with the bars, the wear limit of 1/16
The part of the tire between the tread and the
tire bead.
in
(1.6
mm) has been reached.
| Categories | Mercedes-Benz Manuals, Mercedes-Benz R-Class Manuals |
|---|---|
| Tags | Mercedes Benz R350, Mercedes Benz R350 BlueTEC, Mercedes Benz V251 |
| Model Year | 2011 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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