Consumer Information; Uniform Tire Quality Grading - Mercedes-Benz 2000 CLK 430 Operator's Manual

Consumer information

This has been prepared as required of all manufactures
of passenger cars under Title 49, Code of U.S. Federal
Regulations, Part 575 pursuant to the "National Traffic
and Motor Vehicle Safety Act of 1966".

Uniform tire quality grading

Quality grades can be found where applicable on the
tire sidewall between tread shoulder and maximum
section width. For example:
Tread wear 200
All passenger vehicle tires must conform to federal
safety requirements in addition to these grades.
Consumer information
Instruments
Operation
and controls
Traction AA Temperature A
Instrument
Driving
cluster display
Treadwear
The treadwear grade is a comparative rating based on
the wear rate of the tire when tested under controlled
conditions on a specified government test course. For
example, a tire graded 150 would wear one and one-half
1
(1 / ) times as well on the government course as a tire
2
graded 100. The relative performance of tires depends
upon the actual conditions of their use, however, and
may depart significantly from the norm due to
variations in driving habits, service practices and
differences in road characteristics and climate.
Traction
The traction grades, from highest to lowest are AA, A, B,
and C. Those grades represent the tire's ability to stop
on wet pavement as measured under controlled
conditions on specified government test surfaces of
asphalt and concrete. A tire marked "C" may have poor
traction performance.
Warning!
The traction grade assigned to this tire is based on
straightahead braking traction tests, and does not
include acceleration, cornering, hydroplaning, or
peak traction characteristics.
Practical hints Car care
289
Technical
Index
data