Wheels and tires, Tire labeling – Mercedes-Benz GLK-Class 2013 Owners Manual User Manual

Page 347

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reduce the braking distance on snow-covered

surfaces in comparison with summer tires.

Stopping distance, however, is still

considerably greater than when the road is

not covered with ice or snow. Take

appropriate care when driving.

!

Avoid wheelspin. This can lead to damage

to the drive train.

Temperature

G

WARNING

The temperature grade for this tire is

established for a tire that is properly inflated

and not overloaded. Excessive speed,

underinflation, or excessive loading, either

separately or in combination, can cause

excessive heat build-up and possible tire

failure.

The temperature grades are A (the highest),

B, and C. These represent the tire's

resistance to the generation of heat and its

ability to dissipate heat when tested under

controlled conditions on a specified indoor

laboratory test wheel. Sustained high

temperature can cause the material of the tire

to degenerate and reduce tire life, and

excessive temperature can lead to sudden

tire failure. The grade C corresponds to a level

of performance which all passenger car tires

must meet under the Federal Motor Vehicle

Safety Standard No. 109. Grades B and A

represent higher levels of performance on the

laboratory test wheel than the minimum

required by law.

Tire labeling

Overview of tire labeling

The following markings are on the tire in

addition to the tire name (sales designation)

and the manufacturer's name:

:

Uniform Tire Quality Grading Standard

(

Y

page 349)

;

DOT, Tire Identification Number

(

Y

page 348)

=

Maximum tire load (

Y

page 343)

?

Maximum tire pressure (

Y

page 334)

A

Manufacturer

B

Tire material (

Y

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C

Tire size designation, load-bearing

capacity and speed index (

Y

page 346)

D

Load index (

Y

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E

Tire name

i

Tire data is vehicle-specific and may

deviate from the data in the example.

Tire labeling

345

Wheels

and

tires

Z

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