include "ZR", and the service specification
must be given in parentheses. Example:
275/40 ZR 18 (99 Y). Speed rating "(Y)" indi-
cates that the maximum speed of the tire is
over 186 mph (300 km/h). Consult the tire
manufacturer to find out 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 pro-
vide the driving characteristics of winter
tires. In addition to the M+S marking, win-
ter tires also have the
i
snowflake
symbol on the tire wall. Tires with this
marking fulfill the requirements of the
Rubber Manufacturers Association (RMA)
and the Rubber Association of Canada
(RAC) regarding the tire traction on snow.
They have been especially developed for
driving on snow.
An electronic speed limiter prevents the
vehicle from exceeding a speed of 130 mph
(210 km/h).
The speed rating of tires mounted at the fac-
tory may be higher than the maximum speed
that the electronic speed limiter permits.
The driver must ensure that the tires have
the required speed rating, e.g. with new tires.
For the required speed rating for the vehicle,
see (
Y
page 134).
Further information about reading tire data
is available from any qualified specialist
workshop.
Load index
In addition to the load-bearing index, load
identification
:
may also be imprinted on
the sidewall of the tire.
R
No text: standard load (SL) tire.
R
XL or Extra Load: extra load or reinforced
tire.
R
Light Load: light load tire.
R
C, D, E: load range that depends on the
maximum load that the tire can carry at a
certain pressure.
Maximum load rating
Maximum tire load
:
is the maximum per-
missible weight for which the tire is
approved.
Do not overload the tires by exceeding the
specified load limit. The maximum permis-
sible load is located on the vehicle's Tire and
Loading Information placard on the B-pillar
on the driver's side.
5
Or M+S
i
for winter tires.
136
Obtaining information on tires
>>
Maintenance
and
care
.
Summary of Contents for Smart fortwo cabrio
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