-Never mount used tires on yo ur vehicle if
yo u are not sure of their "previous histo
ry." Old used tires may have been dam
aged even though the damage cannot be
seen that can lead to sudden tire failure
and loss of vehicle control.
- If you notice unusual vibration or if the
vehicle pulls to one side when d riving, al
ways stop as soon as it is safe to do so
and check the wheels and tires for dam
age .
(D Note
Please note that summe r and wi nte r tires
are designed for the cond itions that are
Glossary of tire and loading terminology
Accessory weight means the comb ined weight (in excess of
those sta ndard items which may be rep laced)
of au toma tic transmission, power steer ing ,
power brakes, power windows, power seats,
radio, and heater, to the extent that these
items are availab le as factory-installed equip
ment (whether installed or not) .
Aspect ratio
means the rat io o f the height to the w idth of
the tire in percent . Numbers of 55 or lower in
dicate a low sidewall for improved steering re
sponse and better overa ll handling on dry
pavement .
Bead
means the part of the t ire t hat is made o f
steel wires, wrapped or reinforced by ply cords
and that is shaped to fit the r im.
Bead separation
means a b reakdown of the bond between
components in the bead .
Cord means the strands forming the plies in the
tire.
Tire s an d wheel s 249
typica l in those seasons . Aud i recommends
using winter tires during the winter
months . Low temperatures signif icant ly
dec rease the e lasticity of summer t ires,
which affects tract ion and brak ing ability.
If summer t ires are used i n very co ld tem
peratures, cracks ca n form o n the tread
bars , res ulting in perma nen t tire damage
that can cause loud driving noise and un
bala nced ti re s. Audi i s not respon sible for
th is type of damage .
Cold tire inflation pressure
means the t ire p ress ure recommended by t he
vehicle manufacture r fo r a tire o f a des ignated
s ize t hat has not bee n driven for more than a
coup le o f miles (k ilometers) at low speeds in
the three hour period before the tire press ure
is m easured or adjusted.
Curb weight
me ans the we ight of a motor ve hicle with
st andard equipmen t incl ud ing the max imum
capacity of fuel, oi l, and coolant, air condi
tioning and additional weig ht of optiona l
equipment.
Extra load tire
means a t ire design to oper ate a t higher load s
and at higher inflation pressures than the cor
responding standa rd tire . Extra load tires may
be identified as "XL", "x l", "EXTRA LOAD", o r
"RF" on the sidewal l.
Gross Axle Weight Rating ("GAWR")
me ans the load-ca rry ing capac ity of a single
axle system , measured at the tire -ground in
te rfaces.
Gross Vehicle Weight Rating ( "GVWR ")
mea ns the maximum total loaded we ight of
the ve hicl e. .,..
•
•
250 Tires and wheels
Groove
means the space between two adjacent tread
ribs .
Load rating (code)
means the maximum load that a tire is rated
to carry for a given inflation pressure. You
may not find this informat ion on all tires be
cause it is not req uired by law.
Maximum load rating
means the load rating for a t ire at the max i
mum permissible inflation pressure for that
tire.
Maximum loaded vehicle weight
means the sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity we ight, and
(d) Production options weight
Maximum (permissible) inflation pressure
means the maximum cold inflation pressure
to which a tire may be inflated. Also called
"maximum inflation pressure ."
Normal occupant weight
means 150 lbs. (68 kilograms) times the
number of occupants seated in the vehicle up
to the total seating capacity of your vehicle .
Occupant distribution
means distribution of occupants in a vehicle.
Outer diameter
means the overa ll diameter of an inflated new
tire.
Overall width
means the linear distance between the exteri
ors of the sidewalls of an inflated tire, includ
ing elevations due to labeling, decorations, or
protective bands o r ribs .
Ply
means a layer of rubber-coated parallel cords.
Production options weight
means the combined weight of those insta lled
regular production options weighing over 5
lbs. (2.3 kg) in excess of those standard items
which they replace, not previously considered
in curb weight or accessory we ight, including
heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and special tr im .
Radial ply tire
means a pneumat ic tire in which the ply cords
that extend to the beads are laid at substan
t ia lly 90 degrees to the center line of the
tread .
Recommended inflation pressure
see<=> page 249, Cold tire inflation pressure.
Reinforced tire
means a t ire design to operate at higher loads
and at h igher inflation pressures than the cor
responding standa rd tire. Reinforced tires
may be identified as "XL" "xl" "EXTRA LOAD"
' ' '
or "RF" on the sidewa ll.
Rim
means a metal support for a tire or a tire and
tube assembly upon which the tire beads are
seated.
Rim diameter
means nom inal diameter of the bead seat. If
you change your wheel s ize, you will have to
purchase new tires to match the new rim di
ameter.
Rim size designation
means r im diameter and width .
Rim width
means nominal distance between rim flanges.
Sidewall
means that portion of a tire between the
t read and bead.
252 Tires and wheels
Occupant loading and distribution for vehicle normal load for various designated seating
capacities
Designated seating capacity,
number of occupants Vehicle normal load
, number Occupant distribution in a nor-
of occupants _____ mally loaded vehicle
5 3 2 in fro nt, 1 in back seat
Cold tire inflation pressure
Tire pressure affec ts the overall handling , performance and safe ty of a vehicle.
Fi g. 2 03 Tire p ress ure la b el: loca ted on driver's side B ·
p ill ar
Tire pressure genera lly refers to the amount
of air in a t ire that it needs it to do its job and
safely carry the combined load of the entire
vehicle and its contents . Tire pressure is
measured in kilopasca ls (kPa), the i nterna·
tional measur ing unit and in pou nds pe r
squa re inc h (PSI). Tire pressure is based in
par t on the vehicle's desig n and load limit -
the greatest amoun t of weight that the vehi·
cle can carry safe ly and the t ire size . The prop·
er tire pressure is freq uently referred to as the
" recommended cold tire inf lation pressure."
A ir in the tires expands when the tire heats up
because of internal frict ion when it flexes in
use . The t ire p ressu re is higher when the tire
h as wa rmed up tha n when it is "cold ." It is the
in flat io n pressu re i n a "cold" tire that counts.
Th erefore, you shou ld neve r let air ou t of a
warm tire to match " co ld tire inflat ion pres
sure" recommendations . The t ires wo uld then
be underinflated and could fail su ddenly .
M ain taining p roper t ire pr essu re is one of the
most im po rt an t th ings you ca n d o to he lp
avoid sudden tire failure. Underin fla ted t ires
a re a ma jo r cause of s udden tire failure. Keep·
i n g tires at the right pressure is also impor
tant for safe and responsive vehicle handling,
-U'>
-
---------------------- ,;
•(=~= I: I::... 1)§ :l!: n-...,....,....,~ ...... ~-...,..., ..... _ ... U ........ ~-·~N.-..-.we..... .... lllt-
-AVANT ...,.
-...... .. _
-KPA. a PSI
- KPA.
a PSI
-KPA. a PSI
Fig. 20 4 Tire pr essure labe l
SEE OWNEJICS MANUA1 FOA A,DOITl<>N.IU. INfORMATlON VOIR L£ MANUll DUPR0ftlET""" P"OUR i-t.US DE RENSEIGMEMENfS
traction, braking and load carrying. Tire pres
sures are particularly important when the
vehicle is being driven at higher speeds, and
then especially when heavily loaded even
within the permissible load-carrying capaci
ties approved for your vehicle .
The recommended tire pressures f or y our Audi
depe nd on the kind of tires o n your ve hicle
and the numbe r of passe ngers and/o r amount
of luggage you w ill be t ransporti ng .
The tire pressure label is located on the driv
er 's side B-pillar . The tire pressure labe l lists
the recommended cold t ire inflat io n press ures
for the vehicle at its maximum capac ity
weig ht an d tires t hat were o n your veh icle at
t h e time it was m anufactur ed .
If you wish to improve comfort wh en operat
ing the vehicle at normal load (up to 3 occu
pant s), you can ad just tire pre ssure s to tho se
specified for normal vehicle load . Before op
erating the vehicle at maximum load, you
mu st increase the ti re pressures to those
specified for maximum vehicle load
¢ .&. .
Bear in min d that the tire pressure mon itor ing
system * can o nly mo nitor the tir e press ures .,.
Tires an d wheel s 253
you have stored. The system does not recog
nize the load condition of your vehicle.
The effectiveness of the ti re pressu re monitor
ing sys tem* will be impaired if you store nor
mal load pressures but then operate the vehi
cle at its maximum load¢,& .
See the illustration ¢
fig. 203 for the location
of the label on dr iver's side B-pillar (co lor of
the actual labe l and exact location on the ve
hicle wi ll vary slig htly) .
Note that the fo llowing tab le is accurate a t
the t ime o f go ing to press and is subject to
Tire de signation
c h ange. In the event of discrepancies, the ti re
pressure label located o n the driver's side B
pillar always takes precedence .
T he table below lists the recommended cold
ti re inflation pressures for the Audi mode l
covered by your Owner's Literat ure at the vehi
cle's capacity weight and the t ire sizes instal
l ed on the respective models as orig inal
equipment, or as a factory option.
Tire pressure
Model /
Engine normal load condition full load condition
front rear front rear
Q5 :
2.0 liter
4-cylinder
and
Q5:
3.0 liter
6 -cy lind er 235
/60 Rl8 103H
All S eason
235 /55 Rl9 101H
All Season
235 /55 Rl 9101W
High P erforman ce
255 /45 R20 101W
High Performance
255 /40 R21102Y
High Perfo rmance PSI
29
29
29
35
kAA ~I kAA ~I kAA ~I kAA
200 29 200 3
2 220 32 220
210 30 210
33 230
33 230
200 29 200 33 230 33 230
'
200 29 200 33 230 33 230
I
240 36 250 36 250 39 270
X
L= reinforced or extra load tire. It may also appear as xl, EXTRA LOAD , or RF on the tire side
wall.
The correct tire pressure for the spare wheel i s
located on a label on the dr ive r's side B-p illa r.
Because tec hnical changes may be made to
vehicle equ ipment dur ing the model year, al
ways compare the tire size designation on the tire pressure label on your vehicle w it h the
tires on your vehicle . Make su re t hat the tire
size info rmation on the veh icle label is the
same as the s ize of the t ires on the vehicle.
This is especia lly important if the vehicle be
l ongs to someone else or you bought the vehi
cle with different rims/tires or yo u bought the
vehicle as a previous ly owned vehicle.
Remembe r, your safety and that of yo ur pas
sengers also depends on making sure that load lim
its are not exceeded . Veh icle load in
cludes everybody and eve ryth ing in and on the
vehicle . These load limits a re techn ica lly refer
r ed to as the veh icle's Gross Vehicle Weight
Rat ing ("GVWR"). The Gross Axle We igh t Rat
ing ("GAWR") is the maxim um load that can
be applied at each of the vehicle's two ax les.
The Gross Vehicle Weight Rating and the Gross Ax le Weight Rating are listed on the
safety comp liance sticker label located on the
driver's side B-pillar . The tire pressure labe l on
your Audi lists the maximum combined
weight of all of the occupants and luggage o r
other ca rgo that the veh icle can ca rry . Fo r the
location of the t ire pressure label ¢
fig. 203. IJI,,
•
•
254 Tire s and wheel s
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 in crease the risk of a loss of veh icle 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 causing loss of con
trol and a crash .
- Always make sure that the total load be
ing transported -including the we ight of
a tra iler hitch and the tongue weight of a
loaded trailer -does not make the veh i
cle heav ier than the veh icle's Gross Vehi
cle Weight Rating.
A WARNING
- Incorrect tire pressures and/or underin
flation can lead to a serious o r fatal acci
dent.
- Incorrect tire pressures and/or underin
flation cause increased tire wea r and can
affect the handling of the vehicle .
- Incorrect tire pressures and/or underin
flation can also lead to sudden tire fa il
ure, including a blowo ut and sudden de
flation, causing loss of vehicle control.
Checking tire pressure
-
The correct tire pressure for the tires originol
ly installed on your vehicle is listed on the tire
pressure label located on driver's side 8-pil
lar .
The recommended tire pressures are on the
tire pressure labe l and in the tab le
c:::> page 252, Cold tire inflation pressure .This
means that the pressure must be checked and
adjusted when the tire has not been driven for more than a couple of m iles (k ilometers) at
low speeds during the p revious three hours . Air in the tires expands when the tire heats up
as a result of interna l friction as it flexes in
u se . The tire pressure is h igher when the tire
has warmed up than when it is "cold."
It is the inflation pressure in a "co ld" tire that
counts . Therefore, you should never let air out
of a warm tire to match "Cold t ire inflat ion
pressure" recommendat ions
c:::> page 252 . The
t ires wou ld then be underinflated and could
fail suddenly .
The tire pressure label on your Audi lists the recommended co ld tire inflation pressures at
maximum capacity for the new, orig inal
equipment tires that were on your vehicle at
the time it was manufactured . Fo r the loca
t ion of the labe l
c:::>page 252, fig . 203 .
Most tires lose air naturally over t ime . They
can a lso lose some air if you drive over a pot
hole or hit a curb while park ing. It is usually
not possible to see whether the rad ia l tires
used today are underinflated jus t by looki ng
at them.
T he refo re, be sure to check t ire p ressures at
least once a month and always before going
o n a long trip. Ma ke sure to take the numbe r
of peop le and the amou nt o f luggage into ac
count when adjust ing tire pressu re for a trip -
even one that yo u wo uld not consider to be
" long." See
c:::> page 256, Tires and vehicle
load limits
for more important information .
Always use an ac curate tire p ress ure ga uge
when checking and adj usting inflation pres
s u res . Check a ll of the tires and be sure not to
forget the spare tire. If the pressure in any t ire
is too high when the tire is "cold," let air out
of the tire s low ly w ith the edge of the tire
gauge and keep checking the pressure until
you reach the pressure that is co rrect fo r the
load (passengers and luggage) and k ind of
dr iv ing you plan to do.
If the pressure in any tire is too low, note the
difference between the p ressure in the co ld
t ire and the pressure you need and add the air
t h at you need to reach the cor rect pressure for
t h e ve hicl e load (passengers and luggage) for
the tires on your vehicle as listed on the on
-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 heav ier 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 OC
CUPANTS AND CARGO
SHOULD NEVER EXCEED XXX KG OR XXX LBS" on your ve
hicle's placard (tire inflation
pressure label)
¢ page 252,
fig. 203.
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
Tires and wheels 257
shown on the sticker
¢page 252, fig. 203.
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
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.
.,. Check the tire sidewall
(¢ page 259, fig. 207) to de
termine the designated load rating for a specific tire.
•
•
'
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)1
)
Your veh icle is no rma lly factory equipped with
tires , which possess excellent driving charac
teristics and give your Audi opt imum driving
comfort . An e lectronic speed limiter
c::> page 2 7 wi ll normally prevent you r vehicle
from go ing faster than the tire speed ra ting
c:::> .& .
U.S . DOT T ire Identification Numb er (TIN )
and tire manufacture date
This is the t ire's "serial number". It begins
with the letters "DOT" and indicates that the
tire meets all federal standards . The next two
numbers or letters indicate the plant where it
was manufactured, and the last four numbers r ep resent the week and year of manufacture.
F or
examp le, the numbers 22 12 mean that
the tire was produced in the 22nd week o f
20 12. The other numbe rs are marketing co
des that may or may not be used by the tire
manufactu rer. This information is used to con
tact consumers if a tire defec t requi res a re
call.
Aud i O riginal ti re
Tires with the identification "AO" or "RO" have
been specia lly matched with your Audi . We
recommend using only these tires because
t hey meet the highest standards regard ing
safety and driving character istics when used
correctly . Your authorized Audi dealer w ill
g lad ly provide you with more information .
Tire ply compo sit ion and material s used
The number of plies ind icates the number of
layers of rubber-coated fabric in the t ire. In
general, the greater the number of plies, the
ll Fo r tires wit h a m ax im um s pee d ca pabil ity over 149
mph (2 4 0 k m/h) , tire man ufacturers some times u se
th e le tters " ZR."
Tire s an d wheel s 261
more weight a tire can support . Tire manufac
turers also must indicat e the materials in the
tire, which incl ude steel, nylon, po lyester, and
others.
Ma ximum Load Rating
This number indicates the maximum load in
ki lograms and pounds that can be ca rried by
the tire.
Tire quality grading for treadwear,
tract ion, and temp erature re sis tance
Tread wear, traction and temperat ure grades
c::> page 2 62 .
Maximum Permissible Inflation Pressu re
T his number is the greatest amount of a ir
pressure that should ever be put in the tire
u nder normal driving conditions .
A WARNING
-Using incorrect or 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 injury.
- 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 manufacturer.
- Tires age even if they are not being used
a nd can fai l sudden ly, especially at high
speeds. Tires that are more than 6 yea rs
old can only be used in an emergency
a nd then w ith special care and at lower
speeds.
- Neve r mo unt used tires o n your veh icle if
you are not sure of the ir "previo us histo
ry." O ld used tires may have been dam
aged even though the damage cannot be
seen that ca n lead to sudden tire fai lure
and loss of vehicle control.
•
•
driving a few yards and correct if neces
sary . Follow the instructions from the
snow cha in manufacturer when doing so.
(D Tips
Where snow chains are mandatory oncer
tain roads, this norma lly also applies to
veh icles with all-whee l dr ive .
Wheel bolts
Wheel bolts must always be tightened to the
correct torque.
The design o f whee l bolts is matched to the
factory insta lled r ims . If different rims are fit
ted, the correct wheel bo lts wit h the right
l ength and correctly shaped bolt heads must
be used. This ensures that wheels are f itted
securely and that the brake system functions
correctly .
In certain circumstances, you may not use
wheel bo lts from a different vehicle -even if it
is the same model<=>
page 297.
A WARNING
Improperly tightened or maintained wheel
bolts can become loose caus ing loss of
cont ro l, a co llision and serious persona l in
Jury .
- Always keep the w heel bolts and the
threads in the wheel hubs clea n so the
w hee l bolts can t urn easily and be p rop
erly t igh tened.
- Never grease or oil the wheel bolts and
the threads in the wheel h ubs. They can
become loose wh ile d riving if greased or
oiled, even if tightened to the specified
torq ue.
- Only use whee l bo lts that belong to the
rim being installed .
- Never use different whee ls bolts on your
vehicle.
- Alw ays m ain ta in the co rrec t tig hten ing
torq ue fo r the wheel bo lts to reduce the
risk of a wheel loss . If the tightening tor
que of the wheel bo lts is too low, they
can loosen and come out when the vehi-
Tire s an d wheel s 265
cle is mov ing. If the tightening torq ue is
too high, the wheel bolts and threads
can be damaged and the whee l can be
come loose.
@ Note
The specified torque for the whee l bolts is
105 ft lb (140 Nm) with a to lerance of
± 7,4 ft lb(± 10 Nm). Torque wheel bolts
diagonally . After changi ng a wheel, the
torque m ust be checked as soon as poss i
ble with a to rque wrench -preferably by an
a uthorized Aud i dea le r or qualified wor k
shop.
Low aspect ratio tires
Your A udi is fac tory -eq uipped w ith low aspect
ratio 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 handling under a variety of driving condi
tions . Ask your authorized Aud i dealer for
more details.
The low aspect ratio of these t ires is ind icated
by a numeral of
55 or less in the tire's size
designation. The numera l represents the ratio
of the tire's sidewa ll height in relation to its
tread width exp ressed in percentage. Conven
tiona l tires have a he ight/w idth ratio of 60 or
more.
The performance of low-a spect-r atio tire s is
particularly sensit ive to improper inflation
pre ssure. It is therefor e important that low
a spect ratio tire s are inflated to the specified
pres sure and that th e inflation pr essure i s
regularly checked and maintained. Tire pre s
sure s should be chec ked at lea st once a
month and always before a long trip
<=> page 2 54, Checking tire pressure.
What you can do to avo id tire and rim
damage
Low aspect ratio tires can be damaged mo re
easily by impact w ith potholes, curbs, gull ies
or ridges on the road, particularly if the tire is
under inflated . ..,.
•
•