2013 AUDI TT wheel size

V up to 149 mph (240 km/h)l)
Z over 149 mph (240 km/h)
1
)
W up to 168 mph (270 km/h)ll
Y up to 186 mph (298 km/h)
1 )
Your veh icle is norma lly factory equipped with
t ires, which posses s excellen t driving charac­
ter istics and give your Audi opt imum driving
comfort . An electronic speed limiter
¢ page 31 w ill normally prevent your vehicle
from go ing faste r th an the tire speed rating
¢ &_ .
U.S. DOT T ire Identification Number (TIN )
and tire manufactur e date
This is the t ire's "serial numbe r" . It begins
with the le tters "DOT" and indicates that the
tire meets all federal standards . The next two
numbers or letters indicate the p lant where it
was manufactured, and the last four numbers represent the week and year of manufactu re.
Fo r example, the numbers 2211 mean that
t he t ire was produced in the 22nd week of
2011. The other numbers are marketing co ­
des that may or may not be used by the t ire
manufacturer . This information is used to con­
tact consume rs if a tire defect requires a re­
call.
Audi Original tire
Tires with the ident ificat ion "AO" or "RO" have
been spec ially matched with your Aud i. We
recommend using only these tires because
they meet the highest standards regard ing
safety and driving charac ter istics whe n used
correctly. Yo ur authorized Audi dealer will
g lad ly provide you with more informat ion.
Tire ply composition and materials used
The numbe r of p lies ind icates the numbe r of
l ayers of rubber -coa ted fabric in the t ire. In
general, the greater the number of p lies, the
mo re weight a tire can support . Tire manufac ­
turers also must indicate the materials in the
1) F o r tires wit h a m ax im um s pee d ca pabil ity over 149
mph (2 4 0 k m/h) , tire ma nufa cturers some times use
t h e le tters "Z R."
Tire s an d wheel s 209
tire, which include stee l, nylon, po lyester, and
others .
Maximum Load Rating
This number indicates the max imum load in
kil ograms and po unds that can be ca rr ied by
the tire.
Tire quality grading for treadwear ,
tract ion , and temperature resistance
T read wear, t raction and tempe ra tur e grades
¢page 210 .
Maximum Permissible Inflation Pressure
This number is the greatest amount of a ir
pressure that should ever be put in the tire
u nder norma l dr iv ing cond itions .
_&. WARNING
-Using incorrect o r unm atc hed tires and/
or wheels or improper tire and wheel
comb inat ions can lead to loss of control
,
collision and serio us personal inj ury .
- Always use t ires, rims and whee l bolts
that meet the specifications of original
factory- insta lled tires or other combina­
tions that have been specifically ap­ proved by the vehicle manufacturer.
- Tires age even if they are not being used
and can fai l sudden ly, especially at hig h
speeds. Tires that are more than 6 years
old can only be used in an emergency
and then w ith special care and at lower
speeds .
- Never mount used tires on your veh icle if
you are not sure of the ir "previous histo­
ry ." O ld used tires may have been dam­
a ged even thoug h the damage cannot be
seen tha t can lead to sudden tire fai lure
and loss of vehicle control.
.
- All fo ur whee ls must be fitted wit h ra dial
tires of the same type, size (rolling cir­
cumference) and the same tread pattern . ..,
•
•

The relative perform a nee of ti res depends
upon the actua l conditions of their use, how ­
ever, and may depart sign ificantly from the
norm due to var iat ions in dr iving habits, serv­
ice practices and differences in road character­
istics and climate .
Trac tion
The traction grades, from highest to lowest,
are AA, A, Band
C. Those grades represent the
tire's ability to stop on wet pavement as measured under controlled cond itions on
specified government test surfaces of asphalt
and concrete . A tire marked C may have poor
traction performance ¢,&. .
Temp erature
The temperature grades are A (the h ighest),
B, and
C, representing the t ire's resistance to
the generat ion of heat and its ability to dissi ­
pate heat when tested under controlled condi­
tions on a specified i ndoor 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 ti re fa ilu re ¢ ,&. .
The grade
C corresponds to a level of perform ­
ance which all passenger car tires must meet
u nder the Federa l Moto r Veh icle Safety Stand­
ard No.
109. G rades Band A represent h igher
l eve ls of perfo rmance on the laboratory tes t
wheel than the minimum required by law .
A WARNING
The traction grade assigned to this tire is
based on stra ight-ahead b raking traction
tests, and does not include acceleration,
cornering, hydroplan ing or peak traction
character istics.
A WARNING
The temperature grade for this t ire is es­
tablished for a t ire that is p roperly inflated
and not overloaded. Excessive speed, un­
derinflation, or excessive loading, either
-
Tire s an d wheel s 211
separately or in combinat ion, can ca use
heat bui ldup and possible tire failure.
Winter tires
Winter tires can improve vehicle handling on
snow and ice. At temperatures below 45 °F (7 °C) we recommend changing to winter
tires.
In some heavy snow areas, local governments
may require true winter or "snow" tires, those
with very deeply cut tread. These tires should
o nly be used in pairs and be installed on all
four wheels . Make sure you purchase snow
t ires that are the same size and construction
type as the other tires on your vehicle.
If your vehicle is equipped w ith all-whee l
drive*, th is w ill improve traction during winter
driv ing, even with the standa rd tires. Howev­
er, we strongly recommend that you always
equip all fou r wheels o n your veh icle w ith cor­
rect ly fitted winter tires o r all-season t ires,
when winter road condit ions are expe cted .
T his also improves the veh icle's braking per ­
formance and reduces stopping distances.
Summe r tires provide less grip on ice and
snow.
Winter tires (snow tires) must always be fitted
o n all fo ur wheels .
Ask your authorized Audi dealer or qualified
workshop for permitted
winter tire siz es. Use
only rad ial w inter t ires.
Winter tires lose their effectiveness when the
tread is worn down to a depth of
0 .157 inch
(4 mm) .
Only drive w ith w inter t ires under w inter con­
dit ions. Summer t ires handle better when
there is no snow or ice on the roads and the
temperature is above 45 °F (7 °() .
If you have a flat tire, see notes on spare
whee l
¢page 207.
Please a lways remember that winter tires may
have a lower speed rating than the tires origi -
nally installed on your vehicle at the time it .,.
•
•

212 Tire s and wheel s
was manufactured . Please see q page 208,
Speed roting (letter code) for a listing of the
speed rat ing letter codes and the maximum
speed at wh ich the t ires can be driven .
The speed rating letter code
( c::> page 199) is
on the side wall of the tire
c::> page 207.
A WARNING
Winter tires have maximum speed limits
that may be lower than your vehicle's max­
imum speed . Always know the maximum
speed before driving off . Never drive faster
than the speed permitted for your specific
w inter t ires. This will cause damage to the
tires leading to an accident and serious
pe rsonal inj ury to you and your passen­
gers .
A WARNING
= ~
Driving faster than the maximum speed
for which the winter tires on your vehicle
were designed can cause tire fai lure in­
cluding a blowout and sudden deflat ion,
loss of control, crashes and serious per­
sonal injuries. Have worn or damaged tires
rep laced immed iate ly .
- Winter tires have maximum speed rat ing
that may be lower than your veh icle's
maximum speed .
- Never drive faster than the speed for
w hich the winter or other tires installed
on your vehicle are rated.
A WARNING
Always adjust your d riving to the road and
traffic conditions. Neve r let the good ac­
celeration of the wi nte r t ir es and all-whee l
dr ive temp t you in to taking extr a ris ks . A l­
ways remember :
- Whe n bra king , a n a ll-wheel d rive vehicle
hand les in the same way as a front drive
vehicle.
- Drive caref ully and reduce your speed on
icy and slippery roads, even winter tires
cannot he lp under black ice conditions.
{® For the sa ke of the env ironment
Use summer tires when weather condi­
tions permit. They are qu ieter, do not wear
as quickly and reduce fuel consumption.
Snow chains
Snow cha ins may be f itted only to the front
whee ls, and only to certain tire sizes . Ask your
autho rized Aud i dealer on which tire sizes
snow c hains ca n be used.
If you are go ing to use snow chains, then you
must install them on the front whee ls at
least.
The snow chains must have low-prof ile links
and must not be t hicker than 0.53 inch
(13.5 mm), includ ing the lock .
Remove whee l center covers and trim discs
before putt ing snow cha ins on your vehicle
c::> Q) . For safety reasons cover caps must then
be fitted over the wheel bolts . These are ava il ­
able from autho rized Aud i dealers .
A WARNING
Using the wrong snow chai ns for your veh i­
cle o r ins ta ll ing them in correct ly can in­
crease the risk o f loss of cont ro l leading to
se rious personal injury.
- Snow chains are available in different
sizes. Always make sure to follow the i n­
structions provided by the snow chain manufacturer .
- When driving with snow cha ins never
d rive faster than the speed permitted for
your specific snow chains.
- Always observe local regulations .
(D Note
-Remove snow chain s before dr iv ing o n
roads not covered with snow to avoid
damaging tires and wearing the snow
chains down unnecessa rily.
- Snow chains, which come in to direc t con­
tact with the whee l rim, can scratch or
damage it . Therefore , make sure that the
1J1-

214 Tire s and wheel s
or ridges on the road, part icu larly if the tire is
u nderinflated.
I n o rder to m inim ize the o ccurrence of impact
damage to the t ires of your vehicle, we recom­
mend that you observe the following precau ­
tions:
- Always maintain recommended infla tion
pressures. Check your t ire pressure every
2,000 miles (3,000
km) and add air if neces ­
sary .
- Drive carefu lly on roads with potholes, deep
gullies or ridges. The impact from driving
t h rough or over such obstacles can damage
your tires. Impact with a curb may also cause damage to your tires.
- After any impact, immediately inspect your
tires or have them inspected by the nearest
authorized Aud i dealer. Replace a damaged
t ire as soon as possible .
- Inspect your t ires every 2,000 miles (3,000
km) for damage and wear . Damage is not al­
ways easy to see . Damage can lead to loss of
air and underinflation, wh ich could eventu­
ally cause t ire failure . If you be lieve that a
t ire may have been damaged, replace the
t ir e as soon as possible.
- T hese tires may wea r mo re quick ly than oth­
ers.
- Please a lso remember that, wh ile these t ires
deliver respons ive handling, they may ride
l ess comfortably and make mo re no ise than
other choices.
Reduced performance in winter /co ld
sea son condit ion s
All ti res a re des igned for certa in pu rposes.
The low aspect ratio, ultra high performance
tires originally installed on your vehicle are in­
tended for max imum dry and wet road per­
formance and handling. They are not suitable
for cold, snowy or icy weather condit ions. If
you dr ive under those circumstances, you
should equip your vehicle with all -season or
winter tires, which offer better traction under
those cond it ions. We suggest you use the rec­
ommended snow or all-season tires specified
fo r your vehi cle, or their eq uivalent. Refer to
q page 211
for more detailed infor­
mation regarding winter tires.
Tire pressure monitoring system
General notes
Applies to veh icles: w ith tire pressure monitoring system
Each tire, incl uding the spare ( if provided),
sho uld be checked monthly when co ld and in­
flated to the inflation pressure recommended by the veh icle manufacturer on the veh icle
placard or tire inflation pressure label. (If your
vehicle has tires of a different size than the
s ize indicated on the vehicle placard or tire i n­
flat ion p ressure label, you should dete rmine
the p roper t ire infla tion p ress ure fo r th ose
t i res.)
As an added safety feature, your ve hicle has
been equipped with a tire pressure mon itoring
system ( TPM S) tha t illum inates a low ti re
pressure tel ltale when one o r more of your
tires is significant ly under-inflated . Acco rding­
l y, when the low tire pressure telltale i llumi­
nates, you shou ld stop and check your tires as
soon as possib le, and inflate them to the
proper pressure. Driving on a sign ificantly un­
der- inflated t ire causes the tire to overheat
and can lead to tire fa ilure . Under-inflat ion al ­
so reduces fuel effic iency and tire tread life ,
and may affect the vehicle 's hand ling and
stopp ing abili ty.
Please note that the TPMS is not a substitute
for proper tire ma intenance, and it is the driv­
er's respons ibility to maintain co rrect tire
pressure, even if under-inflation has not
reached the leve l to tr igger illum inat ion of the
T PMS low tire pressu re tellta le .
You r vehicle has also been equipped with a
T PMS ma lf u nction indicator to ind icate when
the sys tem is not operating p roperly . Th e
T PMS ma lfunction indicator is combined w ith
t h e low tire pressure te lltale. When the sys­
tem detects a malfunction, the telltale will
flash for approximately one min ute and then ..,_