2016 SMART FORTWO winter tires

All passenger car tires must conform to the
statutory safety requirements in addition to
these grades.
iThe actual values for tires are vehicle-
specific and may deviate from the values in
the illustration.
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested under controlled conditions on a specified
U.S. government course. For example, a tire
graded 150 would wear one and one-half times
as well on the government test track as a tire
graded 100.
The relative performance of tires depends
upon the actual conditions of their use, how- ever, and may depart significantly from the
norm due to variations in driving habits,
service practices and differences in road
characteristics and climate conditions.
Traction
GWARNING
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration,
cornering, hydroplaning, or peak traction
characteristics.
!Avoid wheelspin. This can lead to damage
to the drive train.
The traction grades – from highest to lowest –
are AA, A, B and C. Those grades represent the
tire's ability to stop on wet pavement as
measured under controlled conditions on
specified government test surfaces of
asphalt and concrete. A tire marked C may
have poor traction performance.
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.
smart recommends a minimum tread depth of
00CF in (4 mm) on all four winter tires. Observe
the legally required minimum tire tread
depth (
Ypage 178). Winter tires can reduce
the braking distance on snow-covered surfa- ces 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) (
Ypage 179).
Temperature
GWARNING
The temperature grade for this tire is
established for a tire that is properly
inflated and not overloaded. Excessive
speed, underinflation, or excessive load-
ing, either separately or in combination,
can cause excessive heat build-up and pos- sible 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 dis-
sipate 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.
190All about wheels and tires
>> Wheels and tires.

Optionally, tires with a maximum speed of
over 149 mph (240 km/h) may have "ZR" in the
size description, depending on the manufac-
turer (e.g. 245/40 ZR 18).
Rim diameter:rim diameter0085is the diam-
eter of the bead seat, not the diameter of the
rim flange. The rim diameter is specified in
inches (in).
Load-bearing index: load-bearing index0083
is a numerical code that specifies the maxi-
mum load-bearing capacity of a tire.
Do not overload the tires by exceeding the
specified load limit. The maximum permis-
sible load can be found on the vehicle's Tire
and Loading Information placard on the
B-pillar on the driver's side (
Ypage 185).
Example:
Load-bearing index 91 indicates a maximum
load of 1,356 lb (615 kg) that the tires can bear.
For further information on the maximum tire
load in kilograms and lbs, see (
Ypage 193).
For further information on the load bearing
index, see "Load index" (
Ypage 193).
Speed rating: speed rating0084specifies the
approved maximum speed of the tire.
iTire data is vehicle-specific and may
deviate from the data in the example.
Regardless of the speed rating, always
observe the speed limits. Drive carefully and
adapt your driving style to the traffic con-
ditions.
Summer tires
IndexSpeed rating
Qup to 100 mph (160 km/h)
Rup to 106 mph (170 km/h)
Sup to 112 mph (180 km/h)
Tup to 118 mph (190 km/h)
Hup to 130 mph (210 km/h)
Vup to 149 mph (240 km/h)
Wup to 168 mph (270 km/h)
Yup to 186 mph (300 km/h)
ZR...Yup to 186 mph (300 km/h)
IndexSpeed rating
ZR...(..Y)over 186 mph (300 km/h)
ZRover 149 mph (240 km/h)
ROptionally, tires with a maximum speed of
over 149 mph (240 km/h) may have "ZR" in the size description, depending on the manu-
facturer (e.g. 245/40 ZR18).
The service specification is made up of
load-bearing index 0083and speed rating
0084.
RIf the size description of your tire
includes "ZR" and there are no service
specifications, 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 ZR18 97 Y.In this example,
"97 Y" is the service specification. The
letter "Y" represents the speed rating. The
maximum speed of the tire is limited to
186 mph (300 km/h).
RThe size description for all tires with
maximum speeds of over 186 mph (300 km/h)
must include "ZR", andthe service speci-
fication must be given in parentheses.
Example: 275/40 ZR 18 (99 Y). Speed rating
"(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
IndexSpeed rating
Q M+S2up to 100 mph (160 km/h)
T M+S2up to 118 mph (190 km/h)
H M+S2up to 130 mph (210 km/h)
V M+S2up to 149 mph (240 km/h)
iNot 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 004Dsnowflake sym-
bol on the tire wall. Tires with this mark-
ing fulfill the requirements of the Rubber
Manufacturers Association (RMA) and the
2Or M+S 004Dfor winter tires.
192All about wheels and tires
>> Wheels and tires.

smart accepts no liability for damage
resulting from the use of tires or wheels
other than those tested and approved.
Information on wheels and tires can be
obtained at a qualified specialist work-
shop, e.g. a smart center.
!Retreaded tires have not been tested by
smart and are not recommended. Previous
damage sustained by the tires (before the
retreading process) cannot always be rec-
ognized. As a result, smart cannot guaran-
tee vehicle safety if retreaded tires are
fitted.
Overview of abbreviations used in the fol-
lowing tire tables:
RBA: both axles
RFA: front axle
RRA: rear axle
The recommended pressures for various oper- ating conditions can be found:
Ron the Tire and Loading Information plac-
ard with the recommended tire pressures on
the B-pillar on the driver's side
Rin the tire pressure table on the inside of
the fuel filler flap
Observe the notes on recommended tire pres-
sures under various operating conditions
(
Ypage 180).
Check tire pressures regularly, and only when
the tires are cold. Comply with the mainte-
nance recommendations of the tire manufac-
turer in the vehicle document wallet.
Notes on the vehicle equipment – always
equip the vehicle with:
Rtires of the same size on a given axle (left/
right)
Rwith the same type of tires on all wheels at a given time (summer tires, winter tires)
Exception: it is permissible to fit a dif-
ferent type or make in the event of a flat
tire.
iThe following pages contain information
on approved wheel rim and tire sizes for
equipping your vehicle with winter tires.
Winter tires are not available at the fac-
tory as standard equipment or optional
extras.
If you want to equip your vehicle with
approved winter tires, it may be necessary
to obtain wheel rims in the corresponding size. The size of the approved winter tires
may differ from the standard tires. This is
dependent on the model and the equipment
installed at the factory.
The tires and wheel rims, as well as further
information, can be obtained at a quali-
fied specialist workshop.
iNot all wheel and tire combinations are
available at the factory for all countries.
Wheel and tire combinations201
>> Wheels and tires.
Z

Winter tires
R 15
TiresWheels
FA: 165/65 R15 81 T M+S004D
RA: 185/60 R15 84 T M+S004DSteel wheels:
FA: 5.0 J x 15 H2
Wheel offset: 1.25 in (32 mm)
RA: 5.5 J x 15 H2
Wheel offset: 1.65 in (42 mm)
Light-alloy wheels:
FA: 5.0 J x 15 CH
Wheel offset: 1.25 in (32 mm)
RA: 5.5 J x 15 CH
Wheel offset: 1.65 in (42 mm)
Wheel and tire combinations203
>> Wheels and tires.
Z