2015 AUDI S3 wheel size

M N
0 > co ,...., \!) 1.1"1
M 1.1"1 ,....,
Sustained high tem perature can cause the
materia l of the tire to degenerate and reduce
tire life, and excessive temperature can lead
to su dden ti re fa ilure <=>,& .
The grade C corresponds to a level of per form­
a nce which a ll passenger car tires must meet
under the Federa l Motor Veh icle Safety Stand­
ard No. 109. Grades Band A represent higher levels of performance on the laboratory test
wheel than the m inimum required by law.
_&. WARNING
The traction grade assigned to this t ire is
based on stra ight-ahead b raking t raction
tests, and does not include acceleration,
cornering, hydrop lan ing o r peak traction
character istics .
_&. WARNING
The temperature grade for this t ire is es­
tablished for a ti re that is properly inflated
and not overloaded . Excessive speed, un­
derinflation, or excessive loading, either
separately or in combination, can cause
heat buildup and possible tire fa ilure.
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, loca l governments
may require true winter or "snow" tires, those
with very deeply cut tread. These tires shou ld
only be used in pa irs and be installed on all
four wheels. Make sure you pu rchase snow
tires that are the same size and const ruct ion
type as t he other tires on your ve hicle.
If your vehicle is equipped with all-wheel
d rive*, this will improve tract ion during winte r
d riving, eve n w it h the standard t ires. Howev­
e r, we strong ly recommend t hat you a lways
eq uip a ll four wheels on yo ur vehicle wi th cor­
rectly fitted win ter t ires or a ll-season tires,
when winter road conditions are expected .
Tires an d wheel s 261
This also improves the veh icle's b rak ing per ­
formance and reduces stopping distances.
Summe r ti res prov ide les s gr ip on i ce and
snow.
Winter tires (snow tires) must always be fitted
o n all fo ur whee ls.
Ask your authorized Audi dealer or qualified
workshop for permitted winter tire sizes. Use
o nl y rad ial winter t ires.
Winter tires lose their effectiveness whe n the
tread is worn down to a depth of0 .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
r=;,page 254.
Please a lways remember that winter tires may
have a lower speed rating t han the tires o rigi­
nally installed on your vehicle at the time it
was manufactured. P lease seer=;,
page 257,
Speed rating (letter code)
for a listing of the
speed rating le tter codes and the max imum
speed at which the tires can be d rive n.
The speed rating letter code(¢
page 238) is
o n the side wall of the t ire r=;,
page 254.
_&. WARNING
Winter t ires have maximum speed limits
that may b e lower than yo ur vehicle's max­
imum speed. Always know the max imum
speed before dr iv ing off. Never dr ive faster
than the speed permitted for yo ur spe cific
win ter tires . This wi ll ca use damage to the
tires leading to an accident and ser ious
personal injury to you and your passen­
gers.
_&. WARNING
Driving faster than the maximum speed
for which the winter tires on your ve hicle
were designed can cause t ire failure in­
cluding a blowout and sudden d eflation,
-
•
•
•

26 2 T ire s and wheel s
loss of control, crashes and serious per­
sona l injuries. Have worn or damaged tires
replaced immediate 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
wh ich the winter or other tires installed
on your vehicle are rated.
A WARNING
Always adjust your driving to the road and traffic conditions. Never let the good ac­
celeration of the winter tires and all-wheel
drive tempt you into taking extra r is ks. A l­
ways remember:
- When brak ing, an a ll-wheel d rive vehicle
hand les in the same way as a front drive
vehicle .
- Drive carefu lly and reduce your speed on
icy and slippery roads, even winter tires
canno t he lp under blac k ice condit ions.
@) For the sake of the environment
Use summe r tires when weathe r cond i­
tions perm it. They are quieter, do not wea r
as quickly and red uce f ue l cons umption.
Snow chains
Snow chains may be fitted on ly to the front
wheels, and only to certain tire sizes . Ask you r
authorized Audi dealer on which tire sizes
snow chains can be used.
I f you are going to use snow chains, then you
must install them on the front wheels at
l east.
The snow chains must h ave low-profi le links
and must not be thicker than 0 .53 inch
(13 .5 mm), including the lock.
Remove wheel ce nte r covers a nd tr im dis cs
be fore putting snow chains on yo ur vehicle
q0 . For sa fety reasons cover caps must then
be fitted over the whee l bolts. These are avai l­
ab le from authorized Audi dea lers.
A WARNING
Using the wrong snow chains for your veh i­
cle o r instal ling them incorrect ly can in­
crease the risk of loss of cont ro l leading to
se rious pe rsonal injury .
- Snow chains are available in different
sizes . Always make sure to follow the in­
structions p rov ided by t he snow cha in
manufac turer.
- When driving with snow cha ins never
d rive faster than the speed permitted for
your specific snow chains.
- Always observe local regulations.
@ Note
- Remove snow chains before dr iv ing o n
roads not covered with snow to avoid
damaging tires and wea ring the snow
chains dow n un necessa rily .
- Snow chains, which come into direc t con­
tact with the whee l rim, can scrat ch or
damage it. Therefo re, make sure that the
s now chains are s uitably covered. Check
t he pos ition of t he snow chains after
driving a few yards and correct if neces ­
sary. Follow the inst ructions from the
snow chain man ufacturer when do ing so.
@ Tips
Where snow chains are mandatory on cer ­
tain roads, th is normally a lso applies to
vehicles with a ll-wheel drive .
Wheel bolts
Wheel bolts must always be tightened to the
correct torque .
The design of w heel bol ts is matched to the
f ac tory installed rims. If different rims are fit­
ted, the co rrect wheel bo lts with the right
l ength and correctly shaped bolt heads must
be used. Th is ensures that wheels are fitted
securely and that the brake system functions
correct ly . .,..

M N
0 > co ,...., \!) 1.1'1
M 1.1'1 ,....,
In certain circumstances, you may not use
wheel bo lts from a different vehicle -
even if it
i s the same mode l
Q page 291.
A WARNING
Improperly tightened or maintained wheel
bolts can become loose caus ing loss of
control, a collision and ser ious personal in­
jury .
- Always keep the wheel bolts and the
threads in the wheel hubs clean so the
wheel bolts can turn easily and be prop­
erly t ightened.
- Never grease or oil the wheel bolts and
the threads in the wheel hubs. They can
become loose w hile d riving if greased or
o iled,
even if tightened to the spec ified
torq ue.
- Only use wheel bo lts that belong to the
rim being ins talled.
- Never use different whee ls bolts on your
vehicle .
- Always maintain the correct tightening
torque fo r the wheel bolts to reduce the
risk of a wheel loss. If the tigh teni ng tor­
que of the wheel bolts is too low, they
can loosen and come out when the vehi­
cle is moving . If the tightening torque is
too high, the whee l bolts and threads
can be damaged and the wheel ca n be­
come loose .
(D Note
The specified torque for the wheel bo lts is
90 ft lb (120 Nm) w ith a tolerance of
± 7,4 ft lb(± 10 Nm). Torque whee l bolts
diagonally. After changing a wheel, the
torque must be checked as soon as possi­
b le with a torque wrench -prefe rably by an
author ized Audi dealer or qualified wo rk­
shop.
Low aspect ratio tires
Your Audi is factory-equipped with low aspect
ratio tires . These tires have been thorough ly
tested and been selected spec ifically for your
model for the ir superb performance, road feel
Tire s an d wheel s 263
and handling under a variety o f driving condi ­
tions. Ask your authorized A udi dealer for
more details .
T he low aspec t ratio of these tires is ind icate d
by a numera l of
55 or le ss in the tire's size
designation. The numera l represents the ratio
of the t ire's sidewa ll height in relation to its
tread width expressed in percentage.
Conven­
tiona l tires have a he ight/w idth rat io of 60 or
more .
The performance of low-a spect-ratio tire s is
particularl y sens it iv e to improper inflation
pressure. It is therefore important that low
a spect ratio tir es are inflated to the specified
pre ssure and that the inflation pr essure i s
regularly checked and ma intain ed . Tire pr es­
s ure s should be checked at lea st on ce a
month and alway s bef ore a long trip
~ page 245 , Checking tire pressure .
A Word about Low Aspect Ratio and High
Performance Ti res
Hig h pe rformance tires are des igned for bet­
ter performance and handling in warm cli­
mates. When driving in cold, snowy or icy
weather, you sho uld equ ip your vehicle w it h
four all-season or winter tires, which
offer
better traction under those condit ions. We
suggest you use the Audi recommended win­
te r or a ll-season tires specified for you r Audi.
High performance tires a lso have a lower as ­
pect ratio that aids performance and han­
dling . Driving over rough or damaged road
surfaces, as well as debr is, cu rbs and other
obstacles can cause serious damage to
whee ls, tires, vehicle body, and suspens ion
parts . B e carefu l to avo id road hazards and re­
du ce your speed , espec ia lly if your vehicle is
equipped wi th low prof ile tires .
Please a lso remember when making your se­
lection that, wh ile these tires deliver respon­
s ive handling, t hey m ay ride less comfo rtably
and make more noise than o thers . Finally,
these tires may wear more quickly than other
c h oices.
IJJ>
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264 Tire s and wheel s
It is important that the inflation pressu re is
regularly checked and maintained at recom­
mended levels .
F or more informat ion p lease ask your A udi
deale r for more details .
What you can do to avoid tire and rim
damage
Low aspect ratio t ires can be damaged more
easi ly by impact with potho les, curbs, gu llies
or ridges on the road, part icularly if the t ire is
underinflated .
I n o rder to m inim ize the o ccu rrence of impact
damage to the tires of your vehicle, we recom­
mend that you observe the following precau­
tions:
- Always mainta in recommended inflat ion
pressures. Check your tire 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
thro ugh or over such obstacles can damage
your t ires. Impact with a curb may also
cause damage to your tires.
- After any impact, immediately inspect your
t ires or have them inspected by the neares t
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 unde rinflat ion, wh ich could eventu­
ally cause t ire fail ure.
If you be lieve that a
t ire may have been damaged, replace the
tire as soon as possible.
- T hese tires may wea r more quick ly than oth­
ers.
- Please a lso remember that, whi le these t ires
deliver respons ive handling, they may ride
less comfortably and make mo re noise than
other c hoices.
Reduced performance in winter /cold
s eason condition s
All tires are designed for certain pu rposes .
The low aspect ratio, u ltra hig h performance t
ir es or iginally insta lled on yo ur vehicle a re in ­
tended for maximum dry and wet road per­
formance and handling . They are not suitable
for cold, snowy or icy weather conditions. If
you drive under those c ircumstances, you
shou ld equ ip your vehicle w ith all -season or
winter tires, which offer bette r traction unde r
those conditions . We suggest you use the rec­
ommended snow o r all-season t ires specified
for yo ur vehicle , or thei r equivalent .
Refer to~ page
261 for more detailed infor­
mation regard ing winter tires .
Tire pressure
monitoring system
ill General notes
E ach tire, including the spare ( if provided),
shou ld be checked monthly wh en co ld and in­
flated to t he inflat io n pressure recommended
by the veh icle man ufact urer on t he veh icle
placard or tire inf lation pressure labe l. (If your
vehicle has tires of a different size than the
size indicated on the vehicle placard or tire in ­
flat ion pressure labe l, you should determine
the proper t ire inflation press ure for those
t i res).
As an added safety feature, your ve hicle has
been equipped with a tire pressure monitoring
system (TPMS) that illum inates a low tire
pressure tell tale when one or more of your
t ires is s ignificantly under-inflated . According­
ly, when the low tire pressure telltale illumi­
nates, you shou ld stop and check you r tires as
soon as possib le, and inflate them to the
proper p ress ure. Driving on a sig nifican tly u n­
der -inflated t ire causes the tire to overhea t
and can lead to tire fa ilure . Under-inflation al­
so reduces fuel eff iciency and tire tread life,
and may affect the vehicle's hand ling and
stopp ing ability.
Please note that the TPMS is not a substit ute
for proper tire maintenance, and it is the driv­
er 's respons ibility to maintain correct tire
pressure, even if under-inflation has not

300 Index
Leather care/cleanin g .... ... .. .. .... . 20 8
Le aving home .............. ... .. ... . 48
LED headlights All-weathe r lights ................ .. 46
L eft h and drive .. . ...... ... .. .. .... .. 4 9
Lift ing jack .. .......... ........ ... . 272
Lift ing vehicle . .. ... .... ... .. .. .... . 284
Light ad ap tive lig ht ................ .... .. 47
Ad justing a utomatic head lights ... .. .. 48
Coming/Leaving home ... .. .. .. .... . . 48
Fog lights/rear fog light(s) ... .. .. .. . . 4 6
Headlight flasher ................... 48
H eadlights . . . . . . . . . . . . . . . . . . . . 46, 48
H ighway light ...................... 47
L ow beams .... .... ...... .. .. .. .. .. 46
P ark ing light .............. ... .. .... 46
Sw itching dayt ime runn ing ligh ts on and
off .. .. ................... .. .. .. .. 49
Travel mode . . . . . . . . . . . . . . . . . . . . . . . 4 9
Light/ra in sensor
H eadlights . .............. ... .. .... 46
I nd icator light . . . . . . . . . . . . . . . . . . . . . 25
I n termi ttent (wi ndshield wipe rs) . . . . . . 50
Lighting Exterior ......... ............. ... .. 46
I n ter ior . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Lights Ambient lighting ................... 49
H eadlig ht range contro l system . ...... 46
Inter ior/read ing ........... ... .. .... 49
Loading the roof rack . . . . . . . . . . . . . . . . . 63
L oc king/ unlocking
by remote con tro l ............ ...... 37
with the cen tral locking switch . ... .. . . 39
with the convenience key . . . . . . . . . . . . . 38
with the door lock ..... ... .. .. .... .. 39
L ong -term memory . . . . . . . . . . . . . . . . . . 28
Low beam Ind icator light . . . . . . . . . . . . . . . . . . . . . 25
Low beams . .... .. ..... ... .. .. .... .. 4 6
L owe r universa l anchorages (Canada) ... 184
Luggage compartment ................ 64
Cargo net ......................... 65
Increasing the size . . . . . . . . . . . . . . . . . . 65
L oading .. .. ... .... ...... ... ... .. .. 64
P ass-t hrou gh . . . . . . . . . . . . . . . . . . . . . . 67 R
eversib le mat . . . . . . . . . . . . . . . . . . . . . 66
Socket . ... .... .. .. ... ..... ... .. .. . 60
Storage hooks . . . . . . . . . . . . . . . . . . . . . 66
Stow ing luggage .............. .... 131
Tie-downs . . . . . . . . . . . . . . . . . . . . . . . . . 65
L uggage compartment lid
Central locking ... ... .. ..... .... . .. . 42
Emergency release . .. .. ..... ... .. .. 267
L umbar suppo rt . . . . . . . . . . . . . . . . . 5 7, 58
M
Maintenance ...... ................ . 289
Maintenance intervals
with driver information system . . . . . . . . 13
Mir ror
Digital compass sw itching on and off . . . 54
dimming . ..... .. .. ... ..... ... .. .. . 53
Vanity mirror . . . . . . . . . . . . . . . . . . . . . . 50
Mir ro r compass . . . . . . . . . . . . . . . . . . . . . . 54
Mirro rs
Adjusting the exterior m irrors . . . . . . . . . 52
Monitoring the Advanced Airbag System 156
Motor stopp ing (dr iver messages w ith mechani-
ca l ign ition key) .. .. ... ..... ... .. .. . 79
Mult ifunct ion steer ing wheel ......... .. 28
On-board computer ............ .... . 28
N
Natural leather care/cleaning ......... 208
Navigation system CD-ROM p layer . . . . . . . . . . . . . . . . . . . . . 61
New ti res and wheels ............ .... 254
NHTSA Contacting .. .. ....... ........... . 133
N itrogen oxide (NOx) catalytic converter
refer to Ad Blue ................ .... 215
N umber of sea ts . .. ............. .... 135
Number of vehicle keys ............... 35
0
Occupant protection .................. 94
Occupant seating positions .. ... .. .. .. 126
Octane rat ing . .. ....... ........... . 210
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 11