Wheel sa nd tires, All about wheels and tires – Mercedes-Benz SLS-Class 2015 Owners Manual User Manual

Page 268

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Summer tires
Index

Speed rating

S

up to 112 mph (180 km/h)

T

up to 118 mph (190 km/h)

H

up to 130 mph (210 km/h)

V

up to 149 mph (240 km/h)

W

up to 168 mph (270 km/h)

Y

up to 186 mph (300 km/h)

ZR...Y

up to 186 mph (300 km/h)

ZR...(..Y) over 186 mph(300 km/h)
ZR

over 149 mph (240 km/h)

R

Optionally, tires with a maximum speed of

over 149 mph (240 km/h) may have "ZR" in

the size description depending on the man-

ufacturer (e.g. 245/40 ZR 18).
The service specification is made up of

load-bearing index A and speed rating B.

R

If the size description of your tire includes

"ZR" and there are no service specifica-

tions, ask the tire manufacturer in order to

find out the maximum speed.
If a service specification is available, the

maximum speed is limited according to the

speed rating in the service specification.

Example: 245/40 ZR 18 97 Y. In this exam-

ple, "97 Y" is the service specification. The

letter "Y" represents the speed index and

the maximum speed of the tire is limited to

186 mph (300 km/h).

R

The size description for all tires with maxi-

mum speeds of over 186 mph (300 km/h)

must include "ZR" and the service specifi-

cation must be given in brackets. Example:

275/40 ZR 18 (99 Y). The speed index "(Y)"

indicates that the maximum speed of the

tire is over 186 mph (300 km/h). Ask the

tire manufacturer about the maximum

speed.

All-weather tires and winter tires
Index

Speed rating

Q M+S

5

up to 100 mph (160 km/h)

T M+S

5

up to 118 mph (190 km/h)

H M+S

5

up to 130 mph (210 km/h)

V M+S

5

Up to 149 mph (240 km/h)

i

Not all tires with the M+S marking provide

the driving characteristics of winter tires. In

addition to the M+S marking, winter tires

also have the i snowflake symbol on

the tire wall. Tires with this marking fulfill

the requirements of the Rubber Manufac-

turers Association (RMA) and the Rubber

Association of Canada (RAC) regarding

snow traction, and were specially devel-

oped for driving on snow.

The speed rating of tires mounted at the fac-

tory may be higher than the maximum speed

that the electronic speed limiter permits.
Make sure that your tires have the required

speed rating for your vehicle as specified in

the "Tires" section (

Y

page 275), e.g. if you

buy new tires.
Further information about reading tire data

can be obtained from any qualified specialist

workshop.

Load index

5

Or M+Si for winter tires.

266

All about wheels and tires

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