2012 AUDI S3 tire pressure

The tire pressure label on your Audi also lists
the maximum combined weight of all of the
occupants and luggage or other cargo that
the vehicle can carry. For the location of the
label
c:::>page 216, fig. 167.
A WARNING
Overloading a vehicle can cause loss of ve­
hicle control, a crash or other accident, se­
rious personal injury, and even death.
- Carrying more weight than your vehicle was designed to carry will prevent the
vehicle from handling properly and in­crease the risk of the loss of vehicle con­
trol.
- The brakes on a vehicle that has been
overloaded may not be able to stop the
vehicle within a safe distance.
- Tires on a vehicle that has been overload­
ed can fail suddenly, including a blowout
and sudden deflation, causing loss of
control and a crash.
- Always make sure that the total load be­
ing transported -including the weight of
a trailer hitch and the tongue weight of a
loaded trailer -does not make the vehi­
cle heavier than the vehicle's Gross Vehi­
cle Weight Rating.
Determining correct load limit
Use the example below to cal­
culate the total weight of the
passengers and luggage or oth­
er things that you plan to trans­
port so that you can make sure
that your vehicle will not be
overloaded.
Steps for Determining
Correct Load Limit
1. Locate the statement "THE
COMBINED WEIGHT OF QC-
Tires and wheels 221
CUPANTS AND CARGO
SHOULD NEVER EXCEED XXX
KG OR XXX LBS"on your vehi­
cle's placard (tire inflation
pressure label)
¢ page 216,
fig. 167.
2. Determine the combined
weight of the driver and pas­
sengers that will be riding in
your vehicle.
3. Subtract the combined
weight of the driver and pas­
sengers from
"XXX" kilo­
grams or
"XXX" pounds
shown on the sticker
¢ page 216, fig. 167.
4. The resulting figure equals
the available amount of car­
go and luggage load capaci­
ty. For example, if the
"XXX"
amount equals 1400 lbs.
and there will be five 150
lbs. passengers in your vehi­
cle, the amount of available
cargo and luggage load ca­
pacity is 650 lbs. (1400-7 50
(5
X 150) = 650 lbs.)
5. Determine the combined
weight of luggage and cargo
being loaded on the vehicle.
That weight may not safely
exceed the available cargo
•
•

222 Tires and wheels
and luggag e loa d cap acit y
c alcul ated in St ep 4.
6 . If your v ehi cle will b e towing
a trail er, load fro m your trail ­
er will b e tr ansferr ed to your
vehi cle. Con sult thi s manual
to determin e how thi s re­
d uces the available cargo
and luggage lo ad capacity of
y our vehicle.
..., Check the tire sidewall
(q page 223, fi g . 171) to de­
termine the d esignated lo ad
rating f or a specific tire.
Tire service life
The service life of tires depends on a lot of
different things including proper installation
and balan cing, correct tire pressure and driv­
ing style.
Fig. 16 9 Tire tread: trea d wea r in di cators (TWI)
fr
Fig. 1 70 Rotat ing t ires for more even wear
Tread Wear Indicator (TWI)
The or ig inal tires on you r vehicle have
1/ 16 inch ( 1.6 mm) hig h "wear indica tors"
c::> fig. 169 ru nning across the tread . Depend­
ing on the ma ke, there will be six to eight of
them even ly placed aro und the tire. Marks on
the tire sidewall (for example "TWI" or other
symbols) ind icate the positions of the tread
wear indica to rs. Wor n tires must be replaced .
Different figures may apply in other countr ies
c::> .&_ .
Tire pressure
Incor rect t ire pressure causes premature wea r
and can cause sudde n tire blow-out . For this
reason, tire pressu re must be checked at least
o nce a month
c::> page 218 .
Driving style
Driving fast around c urves , heavy accelerat ion
and hard braking increase tire wear .
Rotating tires for more even wear
F or all four tires on your ve hicle to have the
same service life, we recomme nd that the
front and rear tires are rotated accord ing to
the tire manufact urer's suggested tire rota­
tion intervals. Please remembe r th e follow­
i ng:
- T ire rotation intervals may differ from the
veh icle service intervals o utli ned in your
Warranty
& M ain tena nce Booklet .
- The longer one tire is used in one location
on t he vehicle, the more it wears at certain
points; the refore , we recommend that you
follow the tire man ufac turer's suggested
tir e rotat ion intervals.
- Vehi cles with front -wheel dr ive experience
more trea d wear on the fro nt wheels com­
pa red to all-wheel d rive (q uattro ®).
- Please rotate tires as shown
c::> fig . 170 .
-Extra care must be taken when rotating di-
rection -spec ific tires
c::> page 241 .
Wheel balancing
The wheels on new ve hicles are balanced .
However, various s ituations during everyday
driv ing ca n cause them to become
...

224 Tire s and wheel s
handling when in good condition and properly
inflated
¢ .&..
We re commend that all wo rk on tires and
wheels be perfo rmed by an authorized A udi
deale r. T hey a re familiar with recommended
procedures and have the necessary special
too ls and spare parts as we ll as the proper fa ­
cilities for disposing of the old tires.
Authorized Audi dealers have the necessary
information about technica l requirements for
installing or changing tires and r ims .
Replacing t ires and whe els
Tires shou ld be rep laced at least in pairs and
not individua lly ( for examp le both front tires
or both rear tires together).
Be sure to read and heed the t ire pressure
monito ring system* info rmation
¢ page 230.
Always buy replacement radial tires that have
the same specifications as the tires approved
fo r your vehi cle by Aud i. Replacement t ires
must always have the s ame load rating speci­
f ication as the or ig inal equipment or approved
optional tires listed in the table
¢page 216.
Audi-approved specification t ires are specially
matc hed to you r vehicle and its lo ad limits,
and ca n contribute to the important road ho ld ­
ing, d riving characteristics, and safety of the
ve hicle . The table
(¢page 216) lists specifica ­
tions of the t ires approved for the Audi mod ­
e ls covered by your Owner's Literature.
The tire press ure label located either on driv­
e r's side B-p illar or inside the fue l filler flap
(¢ page 216 , fig. 168) lists the spec ificat ions
of the original equipment tires installed on
your ve hicle at the time it was manufactured.
F ederal law requires tire manufacturers to
p lace standard ized information on the s ide ­
wall of all tires¢
fig. 171. This information
ident ifies and describes the fundamental
characterist ics, the quality grade of the tire
and also provides a tire ident ificat ion number
for safety standard cert ificat ion and in case of
a recall.
Tire specification s
Knowledge o f ti re specifications ma kes it eas­
ier to choose the correct tires. Radial ti res
have the tire specifications marked on the
sidewa ll, for examp le:
P2 25 / 45 R 17 91H XL
Th is conta ins the following information:
P Indicates the tire is for passenger cars
(where app licab le)
2 25 Nom inal tire w idth in mm of the tire
from sidewall edge to sidewall edge. In general, the larger the number, the wider
the tire
45 Height/w idth ratio in percent (aspect ra-
t io)
R Tire construct ion: Radial
1 7 Rim diameter code (in inches)
91 Load rating code
H S peed ra ting letter code
XL (or "xl", "E XTRA LOAD" or "RF") in d ic ates
that the t i re is "Re info rced" or an "E xtra
Load" t ire
M+S (or "M/5") Indicate s that the ti re has
some mud and snow capabi lity
The tires could also have the information of
direction of rotat io n
¢ page 212.
Tire manufacturing d ate
The manufacturing date is also indicated on
the tire sidewall (possibly on ly on the
inner
s ide of the wheel):
"DOT ... 2211 ... "means, for examp le, that
the tire was produced in the 22nd week of 2011.
Sp eed rating (letter c ode )
The speed rating letter code on the whee ls in­
dicates the maximum permiss ible road speeds
¢ .&. in Winter tires on page 228.
P up to 93 mp h (150 km/h)
Q up to 99 mp h (1 58 km/h)
R up to 106 mph ( 170 km/h)
S up to 110 mph ( 180 km/h)
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)1l
W up to 168 mph (270 km/h)
1 )
Y up to 186 mph (298 km/h)1l
Your vehicle is norma lly factory equipped with
tires, which possess excellent driving charac­
ter istics and give your Audi opt imum driving
comfort. An electronic speed limiter
c:> page 25 will normally prevent your vehicle
from go ing faster than the tire speed rating
¢ & .
U.S . DOT T ire Identific ation Numbe r (TIN)
and tire manufacture date
This is the t ire's "serial number" . It begins
with the lette rs "DO T" and indicates that the
tire meets all federal sta ndards. The next two
n umbers or le tters indica te the p la nt where it
was manufactured, and the last four numbers
represent the week and year of manufacture.
F or example, the numbers 2209 mean that
the t ire was produced in the 22nd week of
2009 . 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.
Aud i Original tire
Tires with the ident ificat io n "AO" or "RO" have
been spec ially matched with your Aud i. We
recommend using only t hese tires because
they meet the highest standards regard ing
safety and driving charac ter is t ics when used
correctly . Yo ur au thori zed Au di dealer w ill
g lad ly provide you with more information.
Maximum Load Rating
This number indicates the maximum load in
kilograms a nd pounds that ca n be carried by
the tire .
ll For tires wit h a max imum spee d capa bility over 149
mph (2 4 0 km/ h), ti re ma nufac tur ers somet imes use
t h e letters "Z R."
Tire s an d wheel s 225
Tire quality grading for treadwear,
traction, and temperature resi stanc e
Tread wear, traction and temperat ure grades
c:> page226.
Ma ximum Permissible Inflation Pressure
Th is number is the g reatest amount of a ir
pressure that should ever be put in the tire
u nder normal dr iv ing conditions.
.&_ WARNING ~
- Using incorrect o r unmatched tires and/
or wheels or improper tire and wheel
comb inat ions can lead to loss of control,
col lis ion and serious personal inj ury.
- Always use t ires, rims and whee l bolts
that meet the specifications of original
factory- installed tires or other combina­
tions that have been specifically ap­ proved by the vehicle manufacture r.
- T ires age even i f they are not being used
and can fail sudden ly , e specially at hig h
speeds. Tires that are more than 6 ye ars
old can only be used in an emergency
an d then w ith speci al care and at lower
speeds .
- Never mo unt used t ires on your veh icle if
you are not sure of thei r "previous histo­
ry." O ld used tires may have been dam ­
aged even though the damage cannot be
seen that can lead to sudden tire fai lure
and loss of vehicle control.
- All fou r whee ls must be fitted with radial
tires of the same type , size (rolling cir­
cumference) and the same tread pattern.
Driving with different tires reduces vehi­
cle handling and can lead to a loss of
contro l.
- If the spa re tire is not the same as the
tires that are mounted on the vehicle -
for examp le w ith winter t ir e s -only use
the spare t ire fo r a short pe riod of time
•
•

226 Tires and wheels
and drive with extra care. Refit the nor­
mal road wheel as soon as safely possi­
ble.
- Never drive faster than the maximum
speed for which the tires on your vehicle
are rated because tires that are driven
faster than their rated speed can fail
suddenly.
- Overloading tires cause heat build-up,
sudden tire failure, including a blowout
and sudden deflation and loss of control.
- Temperature grades apply to tires that are properly inflated and not over or un­
derinflated .
- For technical reasons it is not always
possible to use wheels from other vehi­
cles -in some cases not even wheels
from the same vehicle model.
- If you install wheel trim discs on the ve­
hicle wheels , make sure that the air flow
to the brakes is not blocked. Reduced air­
flow to the brakes can them to overheat,
increasing stopping distances and caus­
ing
a collision.
- Run flat tires may only be used on vehi­ cles that were equipped with them at the
factory. The vehicle must have a chassis designed for run flat tires and a factory­
installed tire pressure monitoring sys­
tem* that indicates a loss of tire pres­
sure . Incorrect use of run flat tires can
lead to vehicle damage or accidents .
Check with an authorized Audi dealer or
tire specialist to see if your vehicle can be
equipped with run flat tires . If run flat
tires are used, they must be installed on
all four wheels. Mixing tire types is not
permitted .
(D Note
-For technical reasons, it is not generally
possible to use the wheel rims from oth­
er vehicles. This can hold true for wheels
of the same vehicle type.
- If the spare ti re is different from the
tires that you have mounted on your ve­
hicle (for example winter tires or wide
profile tires), then use the spare tire for a short period of time only and
drive with
extra care. Replace the flat tire with the
tire matching the others on your vehicle
as soon as possible.
- If you put different wheels and tires on
your vehicle (e .g. winter wheels and
tires), you must be certain that the
wheels and tires are compatible with the
tire pressure monitoring system* . Other ­
wise the system will register a malfunc­
tion and a fault message will be dis­
played. For more information, contact
your authorized Audi dealer.
- Never drive without the valve stem cap .
The valves could get damaged .
@ For the sake of the environment
Dispose of old tires in accordance with the
local requirements.
Uniform tire quality grading
- Tread wear
- Traction AA A B C
- Temperature ABC
Quality grades can be found where applicable
on the tire side wall between tread shoulder
and maximum section width
¢ page 223,
fig. 171 .
For example: Tread wear 200, Traction AA,
Temperature A.
All passenger car tires must conform to Feder­
al Safety Requirements in addition to these
grades .
Tread wear
The tread wear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified
government test course.
For example, a tire graded 150 would wear
one and one half (11/2) times as well on the
government course 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
ll-

@ Tips
-Where snow chains are mandatory on
certain roads, this normally also applies
to vehicles with All Wheel Drive .
- If snow chains are insta lled, the tire
pressures shou ld not be stored in the tire
pressure monitoring system (TPMS).
Otherwise the system could malfunction
¢page 232.
Wheel bolts
Wheel bolts must always be tightened to the
correct torque .
The design of whee l bolts is matched to the
factory installed rims. If different rims are fit­
ted, the correct wheel bolts wit h the right
length and correctly s haped bolt heads must
be used. This ensures that wheels are fitted
secure ly and that the bra ke system f unctions
cor rectly .
In certain circumstances, you may not use
wh eel bolts from a differ ent vehicle -even if it
i s the same mode l.
.&, WARNING
Improperly tig hte ned o r maint ained wheel
bol ts can become loose ca using loss of
cont ro l, a co llision and ser ious persona l in ­
jury.
- Always keep the wheel bolts an d the
threads in the wheel hubs clean so the
whee l bolts can tu rn easily and be pro p­
er ly t ightened.
- Never grease or oil the wheel bo lts and
the threads in the w heel hubs. They can
become loose w hile driving if greased or
o iled, even if tightened to the specified
torq ue.
- Only use wheel bolts t hat belong to the
r im being installed.
- Never use different whee ls bolts on your
vehicle.
- Always maintai n the co rrect tighten ing
torq ue for the wheel bo lts t o reduce the
risk of a wheel loss. If the tightening tor-
Tire s an d wheel s 229
que of t he whee l bolts is too low, they
can loosen and come out when the vehi­
cle is mov ing. If the tig htening torq ue is
too high, the wheel bolts and threads
can be damaged and the whee l can be­
come loose.
(D Note
The specified torque for the whee l bolts is
90 ft lb (120 Nm) with a tolerance of± 7,4
ft lb(± 10 Nm). Torq ue whee l bolts diago­
nally. After changing a whee l, the tor que
must be checked as so on as possible with a
torq ue w rench -prefe rably by an au thor ­
iz ed A udi de aler or qu alified workshop .
Low aspect ratio tires
Your Audi is factory -eq uipped w ith low aspect
r atio tires . These tires have been tho ro ughly
tested and been se lected specifically for your
model for their superb performance, road fee l
and handli ng u nder a var iety of driving condi­
tions . Ask your au thorized Aud i dealer for
more d etails.
The low aspect ratio of these t ires is ind icated
by a numeral of
55 or less in the tire's s ize
designation . The numera l represen ts the ratio
of the t ire's sidewa ll height in relation to its
t read width exp ressed in perce ntage. Conven­
tiona l tires have a he ight/w idth ratio of 60 o r
more.
The performance of low-a spect-ratio tires i s
particularly sensitive to improper inflation
pre ssure.
It is therefore important that low
aspect ratio tires are inflated to the specified
pres sure and that the inflation pressure is
regularly checked and maintained. Tire pre s­
sures should be checked at least once a month and always befo re a long trip
¢ page 218, Checking tire pressure.
What you can do to avoid tire and rim
damage
Low aspect ratio tires can be damaged mo re
easily by impact w it h potholes, curbs, gul lies ..,.
•
•

230 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 22 7 for more detailed infor­
mation regarding winter tires.
Tire pressure monitoring system
ill 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 in­
flat ion p ressure labe l, you should dete rmine
the p roper t ire infla tion p ress ure fo r those
t i res.)
As an added safety feature, your ve hicle has
been equipped with a tire pressure mon itoring
system ( TPMS) tha t illum ina tes a low ti re
pressure tel ltale when one or more of your
tires is significant ly under-inflated . Acco rding­
l y, when the low tire pressure te lltale i llumi­
nates, you should 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-inflation al ­
so reduces fuel effic iency and tire tread life,
and may affect the vehicle 's handling and
stopp ing ability.
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 un ction indicator to ind icate when
the sys tem is not operating properly. The
T PMS ma lf u nction 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 ..,_

remain continuously illuminated. This se­
quence will continue upon subsequent vehicle
start-ups as long as the malfunction exists.
When the malfunction indicator is illuminat­
ed, the system may not be able to detect or
signal low tire pressure as intended . TPMS
malfunct ions may occur for a variety of rea­
sons, including the installation of replace­
ment or alternate tires or wheels on the vehi­
cle that prevent the TPMS from functioning
properly . Always check the TPMS malfunction
tellta le after replacing one or more tires or
wheels on your vehicle to ensure that the re­
placement or alternate tires and wheels allow
the TPMS to continue to function properly.
Tire pressure indicator appears
Appl ies to vehicles: with tire pressur e monitoring sys te m
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too
low or if there is a system malfunction.
Fig. 172 Display : underinflation warning
Fig. 173 Display: System malfunction
Using the ABS sensors, the tire pressure moni ­
toring system compares the tire tread circum­
ference and vibration characteristics of the in­
dividual tires. If the pressure decreases in one
or more tires, this is indicated in the instru­
ment cluster with a warning symbol
ti] and a
Tires and wheels 231
message r=!) fig. 172. The driver message in the
display goes out after 5 seconds. The driver
message can be displayed again by pressing
the
ICHECKI button @¢ page 10, fig . 3 . If on­
ly one tire is affected, the display will indicate
its position .
The tire pressure monitoring must be reset in
the menu display each time the pressures are
adjusted (e .g. when switching between parti­
al and full load pressure) or after changing or
replacing a tire on your vehicle¢
page 232.
You can find the recommended tire pressures
for your vehicle on the label on the driver's
door pillar¢
page 216.
Tire tread circumference and vibration charac­
teristics can change and cause a tire pressure
warning if:
- the tire pressure in one or more tires is too
low,
- the tire has structural damage,
- the tire pressure was changed, wheels rotat- ed or replaced but the TPMS was not reset
¢page 232.
Warning symbols
ti] Loss of pressure in at least one tire¢&.
Check the tire or tires and replace or repair if
necessary. The indicator light
ti] in the instru­
ment cluster also illuminates
¢page 13.
Check/correct the pressures of all four tires
and reset TPMS in the menu display .
11@1&1 (Tire Pressure Monitoring System) Tire
pressure! System malfunction . Ifll@IS, ap­
pears after switching the ignition on or while
driving ¢
fig. 173 and the indicator light ti] in
the instrument cluster blinks for approx i­
mately one minute and then stays on, there is
a system malfunction. See your autho rized
Audi dealer as soon as possible.
A WARNING
-If the tire pressure indicator appears in
the instrument cluster display, one or
more of your tires is significantly under­
inflated. Reduce your speed immediately
and avoid any hard steering or braking ..,.