2011 Mercedes CLS-Class Owner's Manual - Page 205

2011 Mercedes CLS-Class Manual

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219_AKB; 4; 54, en-US d2ureepe, 2009-05-11T16:21:02+02:00 - Seite 203 Version: 2.11.8.1 Tires and wheels For example, a load rating of 91 corresponds to a maximum load of 1356 lb (615 kg) the tire is designed to support. See also "Maximum tire load" (Y page 197) where the maximum load associated with the load index is indicated in kilograms and lbs. For additional information on the load index, see "Load identification" (Y page 204). Speed symbol Index ZR...(..Y) ZR RAt 203 Speed rating above 186 mph (300 km/h) above 149 mph (240 km/h) Even when permitted by law, never operate a vehicle at speeds greater than the maximum speed rating of the tires. Exceeding the maximum speed for which tires are rated can lead to sudden tire failure, causing loss of vehicle control and possibly resulting in an accident and/or serious personal injury and possible death, for you and for others. Regardless of the tire speed rating, local speed limits should be obeyed. Use prudent driving speeds appropriate to prevailing conditions. Speed symbol B indicates the approved maximum speed (tire speed rating) for the tire. Summer tires Index Q R S T H V W Y ZR...Y 11 or RAny Speed rating up to 100 mph (160 km/h) up to 106 mph (170 km/h) up to 112 mph (180 km/h) up to 118 mph (190 km/h) up to 130 mph (210 km/h) up to 149 mph (240 km/h) up to 168 mph (270 km/h) up to 186 mph (300 km/h) up to 186 mph (300 km/h) 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 symbol 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. Speed rating up to 100 mph (160 km/h) up to 118 mph (190 km/h) All-season and winter tires Index Q M+S11 T M+S11 M+Sifor winter tires Z Operation G Warning! the tire manufacturer's option, any tire with a speed capability above 149 mph (240 km/h) can include a "ZR" in the size designation (for example: 245/40 ZR18). To determine the maximum speed capability of the tire, the service description for the tire must be referred to. The service description is comprised of load index A and speed symbol B. 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).

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For example, a load rating of 91 corresponds
to a maximum load of 1356 lb (615 kg) the
tire is designed to support. See also
“Maximum tire load” (
Y
page 197) where the
maximum load associated with the load index
is indicated in kilograms and lbs.
For additional information on the load index,
see “Load identification” (
Y
page 204).
Speed symbol
G
Warning!
Even when permitted by law, never operate a
vehicle at speeds greater than the maximum
speed rating of the tires.
Exceeding the maximum speed for which tires
are rated can lead to sudden tire failure,
causing loss of vehicle control and possibly
resulting in an accident and/or serious
personal injury and possible death, for you
and for others.
Regardless of the tire speed rating, local
speed limits should be obeyed. Use prudent
driving speeds appropriate to prevailing
conditions.
Speed symbol
B
indicates the approved
maximum speed (tire speed rating) for the
tire.
Summer tires
Index
Speed rating
Q
up to 100 mph (160 km/h)
R
up to 106 mph (170 km/h)
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)
Index
Speed rating
ZR...(..Y)
above 186 mph (300 km/h)
ZR
above 149 mph (240 km/h)
R
At the tire manufacturer’s option, any tire
with a speed capability above 149 mph
(240 km/h) can include a “ZR” in the size
designation (for example: 245/40 ZR18).
To determine the maximum speed
capability of the tire, the service
description for the tire must be referred to.
The service description is comprised of
load index
A
and speed symbol
B
.
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 symbol 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
11
up to 100 mph (160 km/h)
T M+S
11
up to 118 mph (190 km/h)
11
or M+S
i
for winter tires
Tires and wheels
203
Operation
219_AKB; 4; 54, en-US
d2ureepe,
Version: 2.11.8.1
2009-05-11T16:21:02+02:00 - Seite 203
Z