Wheels and tires, All about wheels and tires – Mercedes-Benz SLS-Class 2015 Owners Manual User Manual
Page 266
The safe speed on a wet, snow covered or icy
road is always lower than on dry road surfa-
ces.
You should pay special attention to road con-
ditions when temperatures are around freez-
ing point.
Mercedes-Benz recommends a minimum
tread depth of ã in (4 mm) on all four winter
tires. Observe the legally required minimum
tire tread depth (
Y
page 251). Winter tires can
reduce the braking distance on snow-covered
surfaces in comparison with summer tires.
The braking distance is still much further than
on surfaces that are not icy or covered with
snow. Take appropriate care when driving.
Further information on winter tires (M+S
tires) (
Y
page 252).
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. They represent the tire's resistance to
the generation of heat and its ability to dissi-
pate heat when tested under controlled con-
ditions 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
The following markings are on the tire in addi-
tion to the tire name (sales designation) and
the manufacturer's name:
:
Uniform Tire Quality Grading Standard
(
Y
page 268)
;
DOT, Tire Identification Number
(
Y
page 267)
=
Maximum tire load (
Y
page 267)
?
Maximum tire pressure (
Y
page 256)
A
Manufacturer
B
Tire material (
Y
page 268)
C
Tire size designation, load-bearing capa-
city and speed rating (
Y
page 264)
D
Load index (
Y
page 266)
E
Tire name
i
Tire data is vehicle-specific and may devi-
ate 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.
264
All about wheels and tires
Wheels
and
tires