2013 AUDI S4 height

246 Tires and wheels
New tires and replacing tires and wheels
New tires and wheels have to be broken in .
Fig. 195 Tire speci fication codes o n the sidewal l of a
t ir e
No. Description
(!) Passenger car tire (where applicable)
@ Nominal width of tire in mill imeters
@ Ratio of height to width (aspect ratio)
@ Rad ial
® Rim diameter code
@ Load index and speed rating
(j) U.S. DOT tire identification number
@ Audi Original tire
® Sever snow conditions
@) Tire ply composition and materials
used
Maximum load rating
Tr eadwear, traction and temperature
grades
Maximum permissible inflation pres­
sure
The tires and rims are essential parts of the
vehicle's design . The tires and rims approved
by Audi are specially matched to the charac­
ter istics of the vehicle and can make a major contribution to good road holding and safe
handling when in good condition and properly
inflated
¢
&..
We recommend that all work on tires and
whee ls be performed by an authorized Audi
dealer. They are familiar with recommended
procedures and have the necessary special
tools and spare parts as well as the proper fa­
cilities for disposing of the old tires.
Authorized Audi dea lers have the necessary
information about technical requirements for
insta lling or changing tires and rims .
Replacing tires and wheels
Tires should be replaced at least in pairs and
not individually (for example both front tires
or both rear tires together).
Be sure to read and heed the i nformation to
the tire pressure mon itor ing system*
<:!> page 253 .
Always buy replacement radia l tires that have
the same spec ificat ions as the tires approved
for your vehicle by Audi. Replacement tires
must a lways have the same load rating speci­
fication as the origina l equipment or approved
optiona l tires listed in the table¢
page 238 .
Audi-approved specification tires are specia lly
matched to your vehicle and its load limits,
and can contribute to the important roadhold­
ing, driving characteristics, and safety of the
vehicle. The table
(c;, page 238) lists specifica­
tions of the tires approved for the Audi mod­ els covered by your Owner's Literature .
The tire pressure label located on driver's side
B-pillar
(c;, page 238, fig. 192) lists the speci­
fications of the original equipment tires in­
stalled on your vehicle at the time it was man ­
ufactured .
Federal law requires tire manufacturers to
place standardized information on the side­
wall of all tires co
fig. 195 . This information
identifies and descr ibes the fundamenta l
characteristics, the quality grade of the t ire
and also provides a tire identification number ..,.

for safety standard certification and in case of
a recall.
Tire specifications
Knowledge of tire specifications makes it eas­
i er to choose the correct tires. Radial tires
have the tire specifications marked on the
sidewall, for example :
P255 / 35 R19 96V XL
This contains the follow ing information:
P Indicates the tire is for passenger cars
(where applicable)
255 Nominal tire width in mm of the tire
from sidewa ll edge to sidewall edge. In
general, the larger the number, the wider
the tire
35 Height/width ratio in percent (aspect ra-
tio)
R Tire construction: Radial
19 Rim diameter code (in inches)
96 Load rating code
Y Speed rating letter code
XL (or "xl", "EXTRA LOAD", or "RF" Indicates
that the tire is a"Reinforced" or an "Extra L oad" tire
M+S (or "M/S") Indicates that the tire has
some mud and snow capability
The t ires could also have the information of
d ir ection of rotation~
page 234.
Tire manufacturing date
The manufacturing date is also indicated on
the tire sidewall (poss ibly only on the
inner
side of the wheel):
"DOT . .. 2212 ... "means, for example, that
the tire was produced in the 22nd week of
2012.
Speed rating (letter code)
The speed rating letter code on the wheels in­
dicates the maximum permissib le road speeds
~ &. in Winter tires on page 250.
ll For tires w it h a max imum spee d capa bility over
1 4 9 mp h (2 40 k m/h) , tire man ufact urers sometimes
u se t he le tte rs "ZR ."
Tires and wheels 24 7
P up to 93 mph (150 km/h)
Q up to 99 mph (158 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)1l
Z
over 149 mph (240 km/h)1l
W up to 168 mph (270 km/h)1l
Y up to 186 mph (298 km/h)1l
Your vehicle is normally factory equ ipped w ith
tires, which possess excellent dr iving charac­
teristics and give your Aud i optimum driving
comfort . An electron ic speed lim iter
~ page 31 will normally prevent your vehicle
from going faster than the tire speed rating
~&. -
U.S. DOT Tire Identification Number (TIN)
and tire manufacture date
T his is the tire's "se rial number". It begins
with the letters "DOT" and ind icates that the
tire meets all federa l standards. The next two
numbers or letters indicate the plant where it
was manufactured, and the last four numbers
represent the week and year of manufacture.
For example, the numbers 2212 mean that
the tire was produced in the 22nd week of
2012 . The other numbers are marketing co ­
des that may or may not be used by the tire
manufacturer . T his information is used to con­
tact consumers if a tire defect requ ires a re­
call.
Audi Original tire
Tires with the identification "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 characterist ics w hen used
correct ly . Your authorized Audi dealer will
gladly provide you with more information . ...,
•
•

252 Tire s and wheel s
diagonally . After changing a whee l, the
torque must be checked as soon as possi­
ble with a torque wrench -preferably by an
author ized Audi dealer or qualif ied work­
shop.
Low aspect ratio tires
Your Aud i is factory-equipped with low aspect
ratio t ires . These t ires have been thoroughly
tested and been selected spec ifica lly for your
model for the ir superb pe rformance, road feel
and handling under a va riety of driving condi­
tions . Ask your a utho rized Aud i dea le r for
more detai ls.
The low aspect ratio of these ti res is indicated
by a numeral of
55 or l ess in the tire's size
des ignation. The numera l represents the rat io
of the tire's sidewall height in relation to its
tread width expressed in percentage. Conven­
tional tires have a height/width ratio of 60 or more.
The performance of low-a spe ct-ratio ti re s is
p articu lar ly sensi tive to imprope r inflat ion
pressure. It i s therefore impo rt a nt th at low
aspect r atio tire s are inflated to th e specified
pr essure and tha t th e inflation pres sure is
regularly checked and maintain ed . Tire pr es­
s ure s should be checked at l east once a
m onth and alway s befor e a long trip
~ page 241, Checking tire pressure.
What you can do to avoid tire and rim
damag e
Low aspect ratio t ires can be damaged more
eas ily by impact with potho les, cu rbs, gu llies
or ridges on the road, part icu larly 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 maintai n recommended i nflat io n
pressures. Check your tire pressure every
2,000 miles (3,000 km) and add a ir if neces­
sary . - Drive carefully on roads with potholes, deep
gullies or ridges. The impact from driving
through or over such obstacles can damage
your tires. Impact with a curb may also cause damage to your tires.
- After any impact, immed iate ly inspect your
tires or have them inspected by the nearest
author ized Audi dealer. Replace a damaged
tire as soon as possible .
- Inspect your tires every 2,000 m iles (3,000
km) for damage and wear. Damage is not al­
ways easy to see . Damage can lead to loss of
air and under inflation, which could eventu­
ally cause tire failure.
If you believe that a
t ire may have been damaged, rep lace the
t ire as soon as possible.
- These tires may wear more quickly tha n oth­
ers.
- Please also remember that, while these tires
de live r responsive hand ling, they may ride
less comfo rtably and make more noise than
other choices .
Reduced performance in winter /cold
season c onditions
All tires are designed for certa in p urposes.
T he low aspect ratio, ult ra h igh performance
t ir es originally insta lled on your vehicle are 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 with all-season or
winter tires, which offe r bette r traction unde r
those conditions. We sugges t you use the rec­
ommended snow or all -se ason t ires specified
f or yo ur vehicle , or their equivalent.
Refer to~
page 250 for more detailed infor­
mation regard ing winter tires.

294 Index
Escape hand le ...
..... ... .. .. .... .. 42
Opening and closing
Rear light 39
Defective . . . . . . . . . . . . . . . . . . . . . . . . . 21
Rear view camera Parking mode 1
Parking mode 2 120
121
Rear view mirror . . . . . . . . . . . . . . . . . . . . . 51
Rear window heating . . . . . . . . . . . . . . . . . 78
Rear window sun shade . . . . . . . . . . . . . . . 53
Rear window washer system . . . . . . . . . . . 53
Recirculation mode (automatic climate
control) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Refuelling . .. .. . .......... .. .. .... . 217
Release lever for hood . . . . . . . . . . . . . . . 219
Remote control
Hom elink .. ............. .. .. .. .. . 123
Remote control key ........... .. .... .. 33
Personalizing ............. ... .. .. .. 33
unlocking/locking ....... ... .. .. .. .. 35
Remote rear lid release . . . . . . . . . . . . . . . 39
Repair manuals .. ........ .. .. .. .. .. . 280
Repairs Airbag system ............ ... .. ... 158
Replacement key . . . . . . . . . . . . . . . . . . . . 33
Replacing Windshield wiper blades ..... .. .... .. 55
Replacing bulbs ............ ... .. .. . 268
Replacing tires and wheels ... .. .. .. .. . 246
Replacing wipe r blades . .. .. .. .. .. .. .. 54
Reporting Safety Defects .... .. .. .... . 135
Reset button .. .. ........ ...... .... .. 12
Retractor .... .......... ...... ... .. . 140
Reversible floor .. ........ .. .. .. .... .. 75
Reversible mat .. ........ .. .. .. .. .. .. 73
Right hand drive ........... .... .... .. 49
Rims Cast alloy . .. .... ........ .. .. .... . 208
Roof rack .. ... ............ .. .. .. .. .. 67
Roof load .. ... .......... .. .. .. .. .. 68
Roof weight . . . . . . . . . . . . . . . . . . . . . . . 68
s
SAFE . .. .. ... ............ .. .. .. .. .. 12
Safe driving hab its ......... .. .. .. .. . 127 Safety
belt position . . . . . . . . . . . . . . . . . 141
Safety belt height adjustment ... .. .. 143
Safety belts worn by pregnant women . 142
Safety belt pretensioner . . . . . . . . . . . . . . 143
Service and disposal ............... 144
Safety belts . . . . . . . . . . . . . . . . . . . . . . . . 140
Cleaning .. ... ... ................ . 212
Danger to passengers who do not wear a
safety belt .... .. ............. .... 138
Fastening . .. .. . .. ............ .. .. 140
Height adjustment .. ... ........ .. .. 143
Improperly worn ... ........... .. .. 143
Not worn . . . . . . . . . . . . . . . . . . . . . . . . 138
Safety be lt position . . . . . . . . . . . . . . . . 141
Safety instructions ............. .... 140
Securing child safety seats ....... ... 176
Spec ial considerations for pregnant
women ...... ... .. .............. . 142
Unfa stening ... .. ... .......... .. .. 142
Warning/indicator light ......... .... 13 7
Warning light . . . . . . . . . . . . . . . . . . . . . . 17
Why YOU MUST wear them .......... 137
Worn properly ... .. ........... .. .. 139
Safety belt warning light ......... .. .. 13 7
Safety compliance sticker ........ .... 275
Safety equipment . ... ........... .. .. 127
Safety features for occupant restraint and
protection . . . . . . . . . . . . . . . . . . . . . . . . . 12 7
Safety guidelines
Seats . .... .... .. ............. .... . 58
Safety instructions
Engine compartment ........... .. .. 219
for side c urtain airbags ............. 165
for using child safety seats ...... .... 169
for using safety belts ........... .. .. 140
Monitoring the Advanced Airbag Sys-
tem .. ..... ... .. .. .............. . 158
Seat adjustment Head restra ints ... ................ 131
Seat belts
refer to Safety belts . . . . . . . . . . . . . . . . 13 7
Seat heating . . . . . . . . . . . . . . . . . . . . . . . . 78
Seating capac ity ... ............. .... 137
Seating position Driver .. .. .... .. .. ........... .. .. 128
Front passenger .. ... .......... .. .. 129
How to adjust the front seats ........ 129