driver AUDI RS5 CABRIOLET 2015 Manual Online

218 Tires and whee ls
Tire pressure generally refers to tant things you can do to help
the amount of a ir in a tire that avoid sudden tire failure. Un-
it needs it to do its job and derinflated tires are a major
safely carry the combined load cause of sudden tire failure .
of the entire vehicle and its con-
Keeping tires at the right pres-
tents . Tire pressure is measured sure is also important for safe
in kilopascals (kPa), the inter- and responsive vehic le han-
national measuring unit and in dling, traction, braking and
pounds pe r square inch (PSI). load carrying.
Tire pressu res
Ti re pressure is based in part on are particularly important
the vehicle's design and load when the vehicle is being driv-
limit -the greatest amount of en at h igher speeds, and then
weight that the vehicle can car-especially when hea vily loaded
ry safely and the tire size. The even within the permissible
proper tire pressure is frequent-load-carrying capacities ap-
ly referred to as the "recom-proved for your vehicle.
mended cold tire inflation pres-
The recommended tire pres-
sure." Air in the tires expands sures for your Audi depend on
when the tire heats up because the kind of tires on your vehicle
of internal friction when it flex- and the number of passengers
es in use. The ti re pressure is
and/or amount of luggage you
h igher when the tire has
will be transporting.
warmed up than when it is
The tire pressure labe l is locat-
"cold." It is the inflation p res-
ed on the driver's side 8-pillar.
sure in a "cold" tire that counts .
Therefore, you should never let The tire pressure label lists the
recommended cold tire infla-
air out of a warm tire to match
"cold tire inflation pressure" tion pressures for the vehicle at
its maximum capacity weight
recommendations . The tires
would then be underinflated and tires that were on your ve-
and cou ld fai l suddenly . hicle at the time it was manu-
f actured.
...
Maintaining proper tire p res-
sure is one of the most impor-

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If you wish to improve comfort
when operating the vehicle at
normal load (up to 2 occu­
pants), you can adjust tire
pressures to those specified
for normal vehicle load. Before
operating the vehicle at maxi­ mum load, you must increase
the tire pressures to those
specified for maximum vehicle
load
c> .&. .
Bear in mind that the tire pres­
sure monitoring system* can
only monitor the tire pressures
you have stored. The system does not recognize the load
condition of your vehicle.
The effectiveness of the tire p ressure monitoring system*
will be impaired if you store normal load pressures but then
operate the vehicle at its maxi­
mum load
c> .&. .
Model Tire designation
Engine
RS 5 Cabriolet: 265/35 Rl9 98V XL
4.2
liter High Performance
a-cylinder
275/30 R20 97V XL
High Performance
Tires and wheels 219
See the illustration c> fig. 182
for the location of the label on driver's side B-pillar (color of
the actual label and exact loca­
tion on the vehicle will vary slightly).
Note that the following table is
accurate at the time of going to
press and is subject to change.
In the event of discrepancies,
the tire pressure label is locat­ ed on the driver's side B-pillar
always takes precedence.
The table below lists the rec­ ommended cold tire inflation pressures for the Audi model
covered by your Owner's Litera­
ture at the vehicle's capacity
weight and the tire sizes instal­
led on the respective models as
original equipment , or as a fac­
tory option.
Tire pressure
normal load condition full load condition (up to 2 occupants)
front rear front rear
PSI kPA PSI kPA PSI kPA PSI kPA
41 280 38 2 60 45 310 44 300
41 280
38 2
60 4 5 310 44 30 0
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XL= reinforced or extra load tire. It may also appear as xi, EXTRA LOAD, or RF on the tire side-
wall.

220 Tires and wheels
Because technical changes may
be made to vehicle equipment
during the model year, always
compare the tire size designa­
tion on the tire pressure label
on your vehicle with the tires on
your vehicle. Make sure that the
tire size information on the ve­ hicle label is the same as the
size of the tires on the vehicle.
This is especially important if
the vehicle belongs to someone else or you bought the vehicle
with different rims/tires or you
bought the vehicle as a previ­
ously owned vehicle.
Remember, your safety and
that of your passengers also de­ pends on making sure that load
limits are not exceeded . Vehicle
load includes everybody and ev­
erything in and on the vehicle.
These load limits are technical­
ly referred to as the vehicle's
Gross Vehicle Weight Rating
("GVWR"). The Gross Axle
Weight Rating ("GAWR") is the
maximum load that can be ap­
plied at each of the vehicle's
two axles . The Gross Vehicle
Weight Rating and the Gross
Axle Weight Rating are listed on the safety compliance stick- er label located on the driver's
side B-pillar.
The tire pressure
label on your Audi lists the
maximum combined weight of
all of the occupants and lug­
gage or other cargo that the ve­
hicle can carry. For the location
of the tire pressure label
¢fig. 182.
&_ WARNING
-
Overloading a vehicle can
cause loss of vehicle 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 ve­
hicle from handling properly
and increase the risk of a
loss of vehicle control.
-The brakes on a vehicle that has been overloaded may
not be able to stop the vehi­
cle within a safe distance.
-Tires on a vehicle that has
been overloaded can fail
suddenly causing loss of
control and a crash.
-Always make sure that the
total load being transported
- including the weight of a

222 Tires and wheels
Most tires Lose air naturally If the pressure in any tire is too
over time. They can also Lose Low, note the difference be-
some air if you drive over a pot- tween the pressure in the cold
hole or hit a curb while parking . tire and the pressure you need
It is usually not possible to see and add the air that you need to
whether the radial tires used reach the correct pressure for
today are underinflated just by the vehicle load (passengers
looking at them. and luggage) for the tires on
Therefore , be sure to check tire your vehicle as listed on the on
pressures at least once a month your vehicle and in
this manual
and always before going on a and the kind of driving you plan
long trip. Make sure to take the to do.
number of people and the
Never exceed the maximum in-
amount of luggage into ac-flation pressure listed on the
count when adjusting tire pres-tire sidewall for any reason.
sure for a trip -even one that
Remember that the vehicle
you would not consider to be manufacturer, not the tire man-
"long." See
¢ page 224, Tires ufacturer, determines the car-
and vehicle load limits for more
rect tire pressure for the tires
important information. on your vehicle.
Always use an accurate tire
It is important to check the tire
pressure gauge when checking pressure when the tires are
and adjusting inflation pres- cold.
sures . Check all of the tires. If
the pressure in any tire is too -Read the required tire pres-
sure from the tire pressure la-
high when the tire is "cold ", let
bel. The tire pressure label is
air out of the tire slowly with
located on the driver's side 8-
the edge of the tire gauge and
pillar. The tire pressure label
keep checking the pressure un-
lists the recommended cold
til you reach the pressure that
tire inflation pressures for the
is correct for the load (passen-
vehicle at its maximum capaci-
gers and luggage) and kind of
ty weight and the tires that
...
driving you plan to do.

Tires and wheels 223
were on your vehicle at the changing a wheel or replacing •
time it was manufactured. For wheels you have to adjust the • '
recommended tire pressures tire pressures on all wheels. In
for normal load conditions, addition, you must then initial-
please see chapter ize the new tire pressures in the
9page 217. tire pressure monitoring sys-
-Turn the valve stem cap coun- tern*
9 page 239.
ter-clockwise to remove it
_&. WARNING
from the tire valve.
Incorrect tire pressures and/
-Place the air pressure gauge or underinflation can lead
on the valve. sudden tire failure, loss of
-The tire pressures should only control, collision, serious per-
be checked and adjusted when sonal injury or even death.
the tires are cold. The slightly -When the
[IJ warning sym-
raised pressures of warm tires bol appears in the instru-
must not be reduced. ment cluster, stop and in-
-Adjust the tire pressure to the spect the tires.
load you are carrying. -Incorrect tire pressure and/
-Reinstall the valve stem cap or underinflation can cause
on the valve. increased tire wear and can
When should I check the tire affect the handling of the
pressure? vehicle and stopping ability.
The correct tire pressure is es- -Incorrect tire pressures
pecially important at high and/or underinflation can
speeds . The pressure should also lead to sudden tire fail-
therefore be checked at least ure, including a blowout
once a month and always be -and sudden deflation, caus-
fore starting a journey. ing loss of vehicle control.
When should I adjust the
-The driver is responsible for
the correct tire pressures for
tire pressures?
M all tires on the vehicle. The N
er Adjust the tire pressure to the u..
applicable pressure values ... co ,....,
load you are carrying. After \!) 1.1'1 ,...., 1.1'1 ,....,

224 Tires and wheels
are located on a sticker on
the driver's side B-pillar.
-Only when all tires on the vehicle are filled to the cor­rect pressure, the tire pres­
sure monitoring system*
can work correctly.
-The use of incorrect tire pressure values can lead to
accidents or other damage.
Therefore it is essential that
the driver observe the speci­
fied tire pressure values for
the tires and the correct pressures for the function of
the tire pressure monitoring
system*.
-Always inflate tires to the
recommended and correct
tire pressure before driving
off.
-Driving with underinflated
tires bend more, letting
them get too hot resulting
in tread separation, sudden
tire failure and loss of con­
trol.
-Excessive speed and/over­ loading can cause heat
build-up, sudden tire failure
and loss of control.
-If the tire pressure is too
low or too high, the tires will wear prematurely and
the vehicle will not handle
well.
-If the tire is not flat and you
do not have to change a
wheel immediately, drive at
reduced speed to the near­
est service station to check
the tire pressure and add air
as required.
(D Note
Driving without valve stem
caps can cause damage to
the tire valves. To prevent
this, always make sure that
factory installed valve stem
caps on all wheels are secure­ ly mounted on the valve.
@ For the sake of the environment
Underinflated tires will also
increase the fuel consump­
tion.
Tires and vehicle load limits
There are limits to the amount
of load or weight that any vehi­
cle and any tire can carry. Ave­
hicle that is overloaded will not
handle well and is more diffi­
cult to stop. Overloading can not only lead to loss of vehicle
control, but can also damage .,.

important parts of the vehicle
and can lead to sudden tire fail­
ure, including a blowout and
sudden deflation that can cause
the vehicle to crash.
Your safety and that of your
passengers also depends on
making sure that load limits are not exceeded. Vehicle load in­
cludes everybody and every­
thing in and on the vehicle.
These load limits are technical­ ly referred to as the vehicle's
Gross Vehicle Weight Rating
("GVWR").
The "GVWR" includes the
weight of the basic vehicle, all
factory installed accessories, a
full tank of fuel, oil, coolant and other fluids plus maximum
load. The maximum load in­
cludes the number of passen­
gers that the vehicle is intend­
ed to carry ("seating capacity")
with an assumed weight of 150 lbs . (68 kg) for each pas­
senger at a designated seating
position and the total weight of
any luggage in the vehicle. If
you tow a trailer, the weight of
the trailer hitch and the tongue
weight of the loaded trailer
Tires and wheels 225
must be included as part of the
vehicle load.
The
Gross Axle Weight Rating
("GAWR") is the maximum load
that can be applied at each of
the vehicle's two axles.
The Gross Vehicle Weight Rat­ ing and the Gross Axle Weight
Rating are listed on the safety
compliance sticker label locat­
ed on the driver's side 8-pillar.
Your Audi has 4 seating posi­
tions, 2 in the front and 2 in the rear for total seating capacity
of 4. Each seating position has
a seat belt¢ page 123, Safety
belts.
The fact that there is an upper limit to your vehicle's Gross Ve­
hicle Weight Rating means that
the total weight of whatever is being carried in the vehicle (in­
cluding the weight of a trailer hitch and the tongue weight of
the loaded trailer) is limited.
The more passengers in the ve­ hicle or passengers who are
heavier than the standard
weights assumed mean that less weight can be carried as
luggage.
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226 Tires and wheels
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
¢page 217, fig. 182.
A WARNING
-
Overloading a vehicle can
cause loss of vehicle 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 ve­
hicle from handling properly
and increase the risk of the
loss of vehicle control.
-The brakes on a vehicle that has been overloaded may
not be able to stop the vehi­
cle within a safe distance.
-Tires on a vehicle that has
been overloaded can fail
suddenly, including a blow­
out and sudden deflation,
causing loss of control and a
crash .
-Always make sure that the
total load being transported
- including the weight of a trailer hitch and the tongue
weight of a loaded trailer­ does not make the vehicle
heavier than the vehicle's
Gross Vehicle Weight Rat­
ing.
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 OC­
CUPANTS AND CARGO
SHOULD NEVER EXCEED XXX KG OR XXX LBS"on your vehi­
cle's placard (tire inflation
pressure label)
¢page 217,
fig. 182.
2. Determine the combined
weight of the driver and pas­
sengers that will be riding in
your vehicle.
...

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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

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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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