Mercedes-Benz GL-Class: Overview of Tire Quality GradingStandards
The Uniform Tire Quality Grading is a U.S.
Government requirement. Their purpose is to provide drivers with consistent and reliable information regarding tire performance. Tire manufacturers are required to grade tires using three performance factors: tread wear 1, tire traction 2, and temperature resistance 3. Although not a Government of Canada requirement, all tires made for sale in North America have these grades branded on the sidewall.
The actual values for tires are vehiclespecific
and may deviate from the values in
the illustration.
Where applicable, the tire grading information can be found on the tire sidewall between the tread shoulder and maximum tire width.
For example:
All passenger car tires must conform to the statutory safety requirements in addition to these grades.
Tread wear
The tread wear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified
U.S. government course. For example, a tire
graded 150 would ...
See also:
Switching on Blind Spot Assist
► Make sure that the radar sensor system and Blind Spot Assist are activated in the on-board
computer.
► Turn the SmartKey to position 2 in the
ignition lock.
Warning lamps 1 light u ...
Address Book
The address book entry method lets you select a destination by selecting an address
that has been stored in the address book.
Address Book: Press to access the
Address Book screen. From this scr ...
United states department of transportation
The following information relates to the tire grading system developed by the
National Highway Safety Administration which will grade tires by treadwear, traction
and temperature performance.
Not ...
