Tire Labeling - Mercedes-Benz C-Class Convertible 2021 Operator's Manual

366 Wheels and tires

Tire labeling

Overview of tire labeling
1 Uniform Tire Quality Grading Standards
( page 366)
/
2
DOT (Department of Transportation), (TIN)
Tire Identification Number ( page 367)
/
3
Maximum tire load ( page 368)
/
4 Maximum tire pressure ( page 368)
/
5 Manufacturer
6 Characteristics of the tire ( page 369)
/
7 Tire size designation, load-bearing capacity,
speed rating and load index (
/
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:
page 369)
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 gov‐
ernment test course. For example, a tire graded
150 would wear one and one-half (1\1/2) times