Mercedes-Benz GLK-Class: Overview of Tire Quality Grading Standards
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:
Vehicle Load Limits
It is very important to know how much weight the vehicle can carry. This weight
is called the vehicle capacity weight and includes the weight of all occupants,
cargo and all nonfactory&-instal ...
Vents, Heating, and A/C
Vents, Heating, and A/C
Fan Control Dial
Turn this dial to increase or decrease
the fan speed and airflow.
Temperature Control Dial
Turning this dial clockwise increases
the temperature of ...
Operation
Depending on the date of manufacture of your vehicle, the
or
symbol for the automatic headlamp mode/daytime
running lamps is located on the light switch.
Illustration: light switch with the
...
