Mercedes-Benz GLB 2023, Operator'S Manual

Page: 332 / 462

Tire labeling
Overview of tire labeling
1 Uniform Tire Quality Grading Standards
2
DOT (Department of Transportation), (TIN)
Tire Identification Number
3 Maximum tire load (
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4 Maximum tire pressure (
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5
Manufacturer
6 Characteristics of the tire (
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7 Tire size designation, load-bearing capacity,
speed rating and load index (
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8 Tire name
%
The data shown in the illustration is example
data.
Tire Quality Grading
In accordance with the US Department of Trans-
portation's "Uniform Tire Quality Grading Stand-
ards", tire manufacturers are required to grade
their tires on the basis of the following three per-
formance factors:
1
Tread wear grade
2 Traction grade
3
Temperature grade
%
The data shown in the illustration is example
data.
%
The classification is not legally stipulated for
Canada, but it is generally stated.
Tread wear grade
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified govern-
ment test course. For example, a tire graded 150
would wear one and one-half (1\1/2\) times as
330 Wheels and tires