Audi R8 Spyder 2014 Owner's Manual page 203

V up to 149 mph (240 km/h)
1 )
Z
over 149 mph (240 km/h)
1 )
W up to 168 mph (270 km/h)
1
l
Y up to 186 mph (298 km/h)
1 )
Your veh icle is norma ll y factory equipped with
t ires, which possess excellen t driving charac-
ter istics and give your Audi opt imum driving
comfort
~ Ii':,. .
U.S. DOT Tire Identific at ion Numbe r (TIN)
and tire manufacture date
This is the t ire's "serial number" . It begins
with the letters " DOT" and indicates that the
tire meets all federal standards . The next two
numbers or lette rs indicate the plant whe re it
was manufactured, and the last four numbers
represent the week and year of manufacture.
For example, the numbers 2213 mean that
the tire was produced in the 22nd week of
2013. The other numbers are marketing co-
des that may or may not be used by the t ire
manufac t urer. This information is used to con-
tact consume rs if a tire defect requires a re-
call.
Audi Origin al tire
Tires with the identification "AO" or "RO" have
been specially matched with your Aud i. We
recommend using only these t ires because
they meet the highest standards regard ing
safety and driving character istics when used
correctly . Your authorized Aud i dealer will
gladly provide you with more information .
Tire ply composition and materi als used
The number of plies ind icates the number of
layers of rubber -coated fabric in the t ir e. In
general, the greater the numbe r of pli es, the
mo re weight a tire can support. Tire manufa c-
turers also must indicate t he materials in t he
tire, wh ich include steel, nylon, polyes t er, and
others.
ll Fo r tires w it h a maxim um speed capabil ity over 149
mph (24 0 km/h) , ti re manufact urers somet imes use
t he lett ers " ZR."
Tire s an d wheel s 20 1
Maximum Load Rating
This number indicates the maximum load in
kil ograms and pounds that can be carr ied by
the tire .
Tire quality grading for treadwear ,
tract ion, and temp erature resistance
Tread wear, t raction and tempe ratu re grades
¢ page
203 .
Maximum Permissible Inflation Pressure
This number is the greatest amount of air
pressure that should ever be put in the tire
under norma l dr iving cond itions .
Replacing tires or rims on vehicles
equipped with tire pressure monitoring
system
The wheels on your vehicle are equipped with
a sensor which constantly monitors the air
pressure inside the tire, and then transm its
th is information t o the tire pressure monitor-
ing system. If you are going t o repl ace the
whee l r ims on your veh icle, make sure the new
rims also have these sensors . The sensors
mus t be compatib le wit h the t ir e pressure
monitori ng system on you r vehicle.
If you install rims, w hich do not have the sen-
sors, or have sensors which are not compat i-
ble, then the t ir e pressure monitoring system
will not wor k prope rly. I n t his case, t he tire
pressure monitoring system wou ld not be
able to moni t or the tire pressure or warn you
if it is necessary.
- The battery inside of the tire pressure sen-
sor has a limited serv ice life.
- Always dr ive with the valve stem caps se-
curely mounted . We recommend using fac-
t ory installed valve stem caps. Ask your au-
thorized Audi dealer t o replace lost valve
stem caps.
The installat ion of repl acemen t tires with
stee l cord body pli es in t he ti re sidewall may .,..
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