Audi R8 Spyder 2012 Owner's Manual page 197

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T
up to 118 mph (190 km/h)
U
up to 124 mph (200 km/ h)
H
up to 130 mph (210 km/ h)
V
up to 149 mph (240 km/h)
1 )
Z
over 149 mph (240 km/h)
1
l
W up to 168 mph (270 km/h)
1 )
Y
up to 186 mph (298 km/h)
1 )
Your veh icle is norma lly factory equipped with
tires , which possess excellent driving charac-
teristics and give your Audi opt imum driving
comfort ¢ &. .
U.S. DOT Tire Identification Numbe r (TIN )
and ti re manufacture date
This is the ti re's "serial number". It begins
with the letters "DOT" and indicates that the
ti re meets all federal standards. The next two
numbers or letters indicate the plant where it
was manufac t ured, and the last four numbers
represent the week and year of manufacture .
For example, the numbers 2210 mean that
the t ire was produced in the 22nd week of
20 11. The othe r numbe rs are mar keting co-
des t hat may or may not be used by t he t ire
manufacturer . This information is used to con-
tact consumers if a tire defect requires a re-
call.
Audi original tire
Tires wi t h the ident ificat ion "AO" or "RO" have
been specially matched with your Audi. We
recommend using only these tires because
they meet the highest standards regarding
safety and driving character istics when used
correctly . Your authori zed Audi dealer will
gladly provide you with more information .
Tire ply composit ion and materials used
The number of plies ind icates the numbe r of
layers of rubber-coated fabric in the t ire. In
general, the greater the number of plies, the
more weig ht a tire can support. Tire manufac-
turers also must indicate the materials in the
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
195
ti re, which incl ude stee l, nylon, polyester, and
others .
Maximum Load Rating
This number ind icates the maximum load in
kil ograms and pounds that can be carried by
the tire.
Tire quality grading for treadwear ,
traction, and temperature resistance
Tread wear, t raction and t empe ratur e grades
¢ page
197 .
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 w heels on your vehicle are equippe d with
a sensor which constantly monito rs the air
pressure inside the tire, and then transmits
th is information to the tire pressure monitor ·
ing system. If you are going to replace the
whee l rims on your veh icle, make sure the new
rims also have these sensors. The sensors
must be compatib le with the t ire pressure
monito ring syst em on your vehicle .
If you install rims, wh ich do not have the sen-
sors, or have sensors which are not compati-
ble , then the t ire pressure monitoring system
will not wor k prope rly. In t his case, the tire
pressure monitor ing system wou ld not be
able to moni t or the tire pressure or warn you
if it is necessary.
- The battery inside of t he tire pressure sen-
sor has a limited service 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-
t hori zed Audi dealer t o replace lost valve
stem caps.

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