All About Wheels And Tires - Mercedes-Benz C-Class 2018 Operator's Manual

Observe the legally required minimum tire tread
depth ( page 334). Winter tires can reduce the
Y
braking distance on snow-covered surfaces in
comparison with summer tires. The braking dis-
tance is still much further than on surfaces that
are not icy or covered with snow. Take appro-
priate care when driving.
Further information on winter tires (M+S tires)
( page 335).
Y
Temperature
G
WARNING
The temperature grade for this tire is estab-
lished for a tire that is properly inflated and
not overloaded. Excessive speed, underinfla-
tion, 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, representing 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. Sus-
tained 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.

All about wheels and tires

Tire labeling
Overview
Uniform Tire Quality Grading Standard
:
( page 351)
Y
DOT, Tire Identification Number
;
( page 350)
Y
Maximum tire load (
=
Maximum tire pressure (
?
Manufacturer
A
Tire material ( page 350)
B
Y
Tire size designation, load-bearing capacity
C
and speed rating (
Y
Load index ( page 349)
D
Y
Tire name
E
The markings described above are on the tire in
addition to the tire name (sales designation) and
the manufacturer's name.
i
Tire data is vehicle-specific and may deviate
from the data in the example.
Tire size designation, load-bearing
capacity and speed rating
G
WARNING
Exceeding the stated tire load-bearing capa-
city and the approved maximum speed could
lead to tire damage or the tire bursting. There
is a risk of accident.
Therefore, only use tire types and sizes
approved for your vehicle model. Observe the
page 349)
Y
page 339)
Y
page 347)
Z
347