wheel AUDI RS5 CABRIOLET 2015 Workshop Manual

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3. Subtract the combined weight of the driver and pas­sengers from
"XXX" kilo­
grams or
"XXX" pounds
shown on the sticker
.:::> page 217, fig. 182.
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. (1400-750
(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
and luggage load capacity
calculated in Step 4.
6. If your vehicle will be towing
a trailer, load from your trail­
er will be transferred to your
vehicle. Consult this manual
to determine how this re­
duces the available cargo
and luggage load capacity of
your vehicle .
Tires and wheels 227
.,.Check the tire sidewall
(.:::> page 230, fig. 186) to de­
termine the designated load
rating for a specific tire.
Tire service life
The service life of tires depends
on a lot of different things in­
cluding proper installation and
balancing, correct tire pressure
and driving style.
Fig. 184 Tire tread : tread wea r ind i­
cators (TW I)
____ Jj
Fig. 185 Rotat ing ti res fo r more even
wear
Tread Wear Indicator (TWI)
The original tires on your vehi­
cle have 1/16 inch (1.6 mm) high "wear indicators"
¢ fig. 184 running across the

228 Tir es an d whee ls
tread . Depending on the make, -Tire rotation interva ls may dif-
there will be six to eight of fer from the vehicle service in-
them evenly placed around the tervals outlined in your Main-
tire. Marks on the tire sidewall tenance and Warranty Book- (for example "TWI" or other
let.
symbols) indicate the positions -The longer one tire is used in
of the tread wear indicators .
one location on the vehicle ,
Worn tires must be replaced. the more it wears at certain
Different figures may apply in
points; the refore, we recom-
other countries¢
.a:... mend tha t you follow the tire
Tire pressure manufact urer's suggested tire
rotation intervals .
Incorrect tire pressure causes -Vehicles with front -wheel
premature wear and can cause drive experience more tread
sudden ti re blow-out. For this
wear on the front wheels com-
r eason, tire pressure must be
pared to all wheel drive (quat-
checked at least once a month tro).
¢page 221.
-Please rotate t ires as shown
Driving style ¢fig. 185.
Driving fast around curves, -Extra care must be taken when
heavy acceleration and hard rotating direction-specific
b rak ing increase tire wear . tires
¢
page 249.
Rotating tires for more even Wheel balancing
wear
The wheels on new vehicles are
For all four t ires on your veh ic le balanced. However
, various sit-
to have the same service life, uations d
uring everyday drivi ng
we recommend that the front can cause them to become un-
and rear tires are rotated ac- balanced, resulting in vibra
-
c o rd ing to the tire man ufact ur- tions you can
usu ally feel
er's suggested tire rotat ion in- through the s
teering wheel.
terva ls. Please remember the
Unbalanced wheels must be re-
following :
balanced to avo id excessive
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wear on steering, suspension and tires. A wheel must also be
rebalanced when a new tire is
installed.
Incorrect wheel alignment
Incorrect wheel alignment can
cause excessive tire wear, im­
pairing the safety of the vehi­
cle. If tires show excessive
wear, have the wheel alignment checked by an authorized Audi
dealer or qualified workshop.
All wheel drive
Vehicles with quattro must al­
ways have tires of the same
size, construction and tread
type. For details see
¢page 176.
A WARNING
Sudden tire failure can lead
to loss of control, a crash and serious personal injury!
-Never drive a vehicle when the tread on any tire is worn down to the wear indica­
tors.
-Worn tires are a safety haz­
ard, they do not grip well on
wet roads and increase your risk of "hydroplaning" and
loss of control.
Tires and wheels 229
-Always keep chemicals that can cause tire damage, such
as grease, oil, gasoline and
brake fluid away from tires.
-Tires age even if they are not being used and can fail
suddenly, especially at high speeds. Tires that are more
than 6 years old can only be used in an emergency and
then with special care and
at lower speeds.
-Never mount used tires on your vehicle if you are not sure of their "previous histo­
ry." Old used tires may have
been damaged even though
the damage cannot be seen
that can lead to sudden tire
failure and loss of vehicle
control.
•
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230 Tires and wheels
New tires and replacing
tires and wheels
New tires and wheels have to
be broken in.
Fig. 186 Tire specification codes on
the sidewall of a tire
No. Description
CD Passenger car tire (where
applicable)
@ Nominal width of tire in
millimeters
@ Ratio of height to width
(aspect ratio)
© Radial
® Rim diameter code
® Load index and speed rat-
1ng
(j) U.S. DOT tire identifica -
tion number
No. Description
® Audi Original tire
® Sever snow conditions
@ Tire ply composition and
materials used
@ Maximum load rating
@ Treadwear, traction and
temperature grades
@ Maximum permissible in-
flation pressure
The tires and rims are essential
parts of the vehicle's design.
The tires and rims approved by
Audi are specially matched to
the characteristics of the vehi­
cle and can make a major con­
tribution to good road holding and safe handling when in good
condition and properly inflated
¢ A .
We recommend that all work
on tires and wheels be per­
formed 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 facilities for disposing of
the old tires.
Authorized Audi dealers have
the necessary information

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about technical requirements
for installing or changing tires and rims.
Replacing tires and wheels
Tires should be replaced at least in pairs and not individu ­
ally (for example both front
tires or both rear tires togeth­ er) .
Be sure to read and heed the in­
formation to the tire pressure monitoring system*
¢page 239.
Always buy replacement radial
tires that have the same specifi­
cations as the tires approved
for your vehicle by Audi. Re­
placement tires must always
have the same load rating spec­
ification as the original equip ­
ment or approved optional tires
listed in the table
¢ page 217.
Audi-approved specification
tires are specially matched to
your vehicle and its load limits and can contribute to the im­
portant roadholding, driving
characteristics, and safety of
the vehicle. The table ( ¢
page 217) lists specifica­
tions of the tires approved for
I
Tires and wheels 231
the Audi models covered by
your Owner's Literature.
The tire pressure label located on driver's side B-pillar
(r=>page 217, fig. 183) lists the
specifications of the original
equipment tires installed on
your vehicle at the time it was
manufactured.
Federal law requires tire manu­
facturers to place standardized information on the sidewall of
all tires¢
fig. 186. This infor­
mation identifies and describes
the fundamental characteris­
tics, the quality grade of the
tire 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 easier to choose the
correct tires. Radial tires have
the tire specifications marked on the sidewall , for example:
P265 / 35 R19 98V XL
This contains the following in-
formation: ..,..
•
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232 Tires and wheels
P Indicates the tire is for pas­
senger cars (where applica­ ble)
265 Nominal tire width in mm
of the tire from sidewall
edge to sidewall edge. In
general, the larger the num­
ber, the wider the tire
35 Height/width ratio in per­
cent (aspect ratio)
R Tire construction: Radial
19 Rim diameter code (in in-
ches)
98 Load rating code
Y Speed rating letter code
XL (or "xl", "EXTRA LOAD", or
"RF" Indicates that the t ire is
a"Reinforced" or an "Extra
Load" tire
M+S (or "M/5") Indicates that
the tire has some mud and snow capability
The tires could also have the in­
formation of direction of rota­
tion
¢page 211.
Tire manufacturing date
The manufacturing date is also
indicated on the tire sidewall
l) For t ires with a maximum speed ca­
pability ov er 149 mph (240 km/h) ,
tire manufacturers sometimes use
the letters "ZR."
(possibly only on the inner side
of the wheel):
"DOT ... 2214 ... " means, for
example, that the tire was pro­
duced in the 22nd week of
2014.
Speed rating (letter code)
The speed rating letter code on
the wheels indicates the maxi­
mum permissible road speeds
¢ A in Winter tires on
page 237.
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)
1 )
Z over 149 mph (240 km/h)1)
W up to 168 mph (270 km/h)1
)
Y up to 186 mph (298 km/h)1) .,.

Tires and wheels 233
Your vehicle is normally factory highest standards regarding •
equipped with tires, which pos- safety and driving characteris-• '
sess excellent driving character- tics when used correctly. Your
istics and give your Audi authorized Audi dealer will
optimum driving comfort. gladly provide you with more
U.S. DOT Tire Identification
information.
Number (TIN) and tire
Tire ply composition and
manufacture date materials used
This is the tire's "serial num-The number of plies indicates
ber". It begins with the letters the number of layers of rubber-
"DOT" and indicates that the coated fabric in the tire. In gen-
tire meets all federal stand- eral, the greater the number of
ards . The next two numbers or
plies, the more weight a tire
letters indicate the plant where can support. Tire manufactur-
it was manufactured, and the ers also must indicate the ma-
last four numbers represent the terials in the tire, which include
week and year of manufacture .
steel, nylon, polyester, and oth-
For example, the numbers ers.
2214 mean that the tire was
Maximum Load Rating
produced in the 22nd week of
2014. The other numbers are This number indicates the max-
marketing codes that may or imum load in kilograms and
may not be used by the ti re pounds that can be carried by
manufacturer. This information the tire.
is used to contact consumers if
Tire quality grading for
a tire defect requires a recall. treadwear, traction, and
Audi Original tire temperature resistance
Tread wear, traction and tern-
Tires with the identification
"ROl" have been specially perature
grades¢
page 236.
M matched with your Audi. We
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.... 1.1'1 ....

234 Tires and wheels
Maximum Permissible
Inflation Pressure
This number is the greatest
amount of air pressure that
should ever be put in the tire
under normal driving condi­
tions.
.&_ WARNING
-Using incorrect or unmatch­ ed tires and/ or wheels or improper tire and wheel
combinations can lead to loss of control, collision and
serious personal injury.
-Always use tires, rims and wheel bolts that meet the
specifications of original
factory-installed tires or
other combinations that have been specifically ap­
proved by the vehicle manu­
facturer.
-Tires age even if they are
not being used and can fail
suddenly, especially at high
speeds. Tires that are more
than 6 years old can only be used in an emergency and
then with special care and
at lower speeds.
-Never mount used tires on your vehicle if you are not sure of their "previous
histo­
ry." Old used tires may have
been damaged even though
the damage cannot be seen
that can lead to sudden tire
failure and loss of vehicle
control.
-All four wheels must be fit­ ted 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 control.
-If the replacement tire is
not the same as the tires
that are mounted on the ve­
hicle -for example with win­
ter tires - only use the re­
placement tire for a short
period of time and drive
with extra care. Refit the normal road wheel as soon
as safely possible.
-Never drive faster than the maximum speed for which
the tires on your vehicle are
rated because tires that are
driven faster than their rat-
ed speed can fail suddenly. ...

Tires and wheels 235
-Overloading tires cause heat Incorrect use of run flat •
build-up, sudden tire fail- tires can lead to vehicle • '
ure, including a blowout damage or accidents. Check
and sudden deflation and with an authorized Audi loss of control. dealer or tire specialist to
-Temperature grades apply see if your vehicle
can be
to tires that are properly in- equipped with run flat tires.
flated and not over or un- If run flat tires are used,
derinflated. they must be installed on all
-For technical reasons it is four wheels. Mixing tire
not always possible to use types is not permitted.
wheels from other vehicles -
(D Note
in some cases not even -For technical reasons, it is
wheels from the same vehi-
not generally possible to
cle model.
use the wheel rims from
-If you install wheel trim
other vehicles. This can hold
discs on the vehicle wheels, true for wheels of the same
make sure that the air flow vehicle type.
to the brakes is not blocked. -If a replacement tire is dif-
Reduced airflow to the
ferent from the tires that
brakes can them to over-
you have mounted on your
heat, increasing stopping
vehicle (for example winter
distances and causing a col-
tires or wide profile tires),
lision.
-Run flat tires may only be then use the replacement
tire for a short period of
used on vehicles that were time only and drive with ex-
equipped with them at the tra care. Replace the flat
factory. The vehicle must
tire with the tire matching
have a chassis designed for
the others on your vehicle
run flat tires and a factory-
as soon as possible.
installed tire pressure moni-
M
-Never drive without the N
er toring system* that indi-u.. co
valve stem cap. The valves ,....,
cates a loss of tire pressure. \!) 1.1'1 ,...., could get damaged. 1.1'1 ,....,

236 Tires and wheels
@ For the sake of the environment
Dispose of old tires in accord­
ance with the local require­
ment s.
Uniform tire quality grading
- Tread wear
- T raction
AA A B C
- T emperature ABC
Quality grades can be found where applicable
on the tire side wall between tread shou lder
and max imum sect ion width
¢ page 230,
fig. 186.
For example: Tread wear 200, Tract ion 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 (1 1/2) times as well on the
government course as a tire graded 100.
The relat ive performance of t ires depends
upon the actua l conditions of their use, how­
ever, and may depart significantly from the norm due to var iations in dr iving habits, serv­
ice practices and differences in road character­
istics and climate .
Traction
The traction grades, from highest to lowest,
are AA, A, Band
C. Those grades represent the
tire's abil ity 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 ¢&,. .
Temperature
The temperature grades are A (the highest),
B, and C, representing the tire's resistance to
the generation of heat and its ability to dissi­
pate heat when tested under controlled condi­
tions on a specified indoor laboratory test
wheel.
Sustained high temperature can cause the
material of the tire to degenerate and red uce
tire life, and excessive temperature can lead
to sudden tire failure
¢ &,..
The grade C corresponds to a level of perform ­
ance which all passenger car tires must meet
under the Federal Motor Vehicle Safety Stand­
ard No. 109. Grades Band A represent higher
levels of performance on the laboratory test
wheel than the minimum required by law .
A WARNING
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration,
cornering, hydroplaning or peak traction
characteristics.
A WARNING
The temperature grade for this tire is es ­
tablished for a tire 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 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
only be used in pairs and be installed on all
four wheels. Make sure you purchase snow
tires that are the same size and construction
type as the other tires on your vehicle. .,.