Characteristics of the tire, Definitions for tires and loading, Tire ply composition and material used – Mercedes-Benz 2011 E Class Sedan User Manual

Page 373: Dot (department of transportation), Average weight of the vehicle occupants, Uniform tire quality grading standards, Recommended tire pressure, Tires and wheels

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have a code with two symbols. Retreaded
tires have a code with four symbols.
Further information about retreaded tires
(

Y

page 350).

Tire size: identifier = describes the tire size.
Tire type code: tire type code ? can be
used by the manufacturer as a code to
describe specific characteristics of the tire.
Date of manufacture: date of manufacture
A provides information about the age of a
tire. The first and second positions represent
the week of manufacture, starting with "01"
for the first calendar week. Positions three
and four represent the year of manufacture.
For example, a tire that is marked with
"3208", was manufactured in week 32 in
2008.

Characteristics of the tire

i

Tire data is vehicle-specific and may

deviate from the data in the example.

This information describes the tire cord and
the number of layers in sidewall : and under
the tread ;.

Definitions for tires and loading

Tire ply composition and material

used

Describes the number of layers or the number
of rubber-coated belts in the tire tread and
the tire wall. These are made of steel, nylon,
polyester and other materials.

Bar

Metric unit for tire pressure. 14.5038 pounds
per square inch (psi) and 100 kilopascals
(kPa) are the equivalent of 1 bar.

DOT (Department of Transportation)

DOT marked tires fulfill the requirements of
the United States Department of
Transportation.

Average weight of the vehicle

occupants

The number of occupants for which the
vehicle is designed multiplied by 68 kilograms
(150 lb).

Uniform Tire Quality Grading

Standards

This is a uniform standard to grade the quality
of tires with regards to tread quality, tire
traction and temperature characteristics. The
quality grading assessment is made by the
manufacturer following specifications from
the U.S. government. The quality grade of a
tire is imprinted on the sidewall of the tire.

Recommended tire pressure

This is the recommended tire pressure for
your vehicle under normal driving conditions.
You will find the recommendation on the Tire
and Loading Information placard on the
B-pillar on the driver's side of your vehicle.
The recommended tire pressure provides the
best balance between handling
characteristics, ride comfort and wear.
Additional information on particular driving
conditions is located on the tire pressure
table on the inside of the fuel filler flap.

Definitions for tires and loading

371

Tires and wheels

BA 212 USA, CA Edition B 2011; 1; 5, en-US
dimargi

Version: 3.0.3.6

2010-05-20T13:33:46+02:00 - Seite 371

Z

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