2009 Mercedes R-Class Owner's Manual - Page 271

2009 Mercedes R-Class Manual

Page 271 highlights

Operation Tires and wheels capability of the tire, the service description for the tire must be referred to. The service description is comprised of tire load rating 5 and tire speed rating 6. If your tire includes "ZR" in the size designation and no service description is given, the tire manufacturer must be consulted for the maximum speed capability. If a service description is given, the speed capability is limited by the speed symbol in the service description. Example: 245/40 ZR18 97Y. In this example, "97Y" is the service description. The letter "Y" designates the speed rating and the speed capability of the tire is limited to 186 mph (300 km/h). RAny All-season and winter tires Index Speed rating Q M+S12 up to 100 mph (160 km/h) T M+S12 up to 118 mph (190 km/h) H M+S12 up to 130 mph (210 km/h) V M+S12 up to 149 mph (240 km/h) Make sure your tires have the required tire speed rating as specified for your vehicle in the "Technical data" section (Y page 394), for example when purchasing new tires. If you are uncertain about the correct reading of the information given on a tire's sidewall, any authorized Mercedes-Benz Center will be glad to assist you. Load identification i Not all M+S rated tires provide special winter performance. Make sure the tires you use show M+S and the mountain/ snowflake.marking on the tire sidewall. These tires meet specific snow traction performance requirements of the Rubber Manufacturers Association (RMA) and the Rubber Association of Canada (RAC) and have been designed specifically for use in snow conditions. An electronic speed limiter prevents your vehicle from exceeding a speed of 130 mph (210 km/h). The factory equipped tires on your vehicle may have a tire speed rating above the maximum speed permitted by the electronic speed limiter. tire with a speed capability above 186 mph (300 km/h) must include a "ZR" in the size designation AND the service description must be placed in parenthesis. Example: 275/40 ZR 18 (99Y). The "(Y)" speed rating in parenthesis designates the maximum speed capability of the tire as being above 186 mph (300 km/h). Consult the tire manufacturer for the actual maximum permissible speed of the tire. M+S.for winter tires 1 Load identification i For illustration purposes only. Actual data on tires are specific to each vehicle and may vary from data shown in above illustration. Z 12 or 269

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Tires and wheels
269
capability of the tire, the service
description for the tire must be referred to.
The service description is comprised of tire
load rating
5
and tire speed rating
6
.
If your tire includes “ZR” in the size
designation and no service description is
given, the tire manufacturer must be
consulted for the maximum speed
capability.
If a service description is given, the speed
capability is limited by the speed symbol in
the service description. Example:
245/40 ZR18 97Y. In this example, “97Y”
is the service description. The letter “Y”
designates the speed rating and the speed
capability of the tire is limited to 186 mph
(300 km/h).
R
Any tire with a speed capability above
186 mph (300 km/h) must include a “ZR”
in the size designation AND the service
description must be placed in parenthesis.
Example: 275/40 ZR 18 (99Y). The “(Y)”
speed rating in parenthesis designates the
maximum speed capability of the tire as
being above 186 mph (300 km/h). Consult
the tire manufacturer for the actual
maximum permissible speed of the tire.
All-season and winter tires
Index
Speed rating
Q M+S
12
up to 100 mph (160 km/h)
T M+S
12
up to 118 mph (190 km/h)
H M+S
12
up to 130 mph (210 km/h)
V M+S
12
up to 149 mph (240 km/h)
i
Not all M+S rated tires provide special
winter performance. Make sure the tires
you use show M+S and the mountain/
snowflake
.
marking on the tire
sidewall. These tires meet specific snow
traction performance requirements of the
Rubber Manufacturers Association (RMA)
and the Rubber Association of Canada
(RAC) and have been designed specifically
for use in snow conditions.
An electronic speed limiter prevents your
vehicle from exceeding a speed of 130 mph
(210 km/h).
The factory equipped tires on your vehicle
may have a tire speed rating above the
maximum speed permitted by the electronic
speed limiter.
Make sure your tires have the required tire
speed rating as specified for your vehicle in
the “Technical data” section (
Y
page 394),
for example when purchasing new tires.
If you are uncertain about the correct reading
of the information given on a tire’s sidewall,
any authorized Mercedes-Benz Center will be
glad to assist you.
Load identification
1
Load identification
i
For illustration purposes only. Actual data
on tires are specific to each vehicle and
may vary from data shown in above
illustration.
12
or M+S
.
for winter tires
Operation
Z