to determ ine ho w th is re
du ces the avail a bl e c argo
and luggage l oad ca pa city of
yo ur vehicle .
.,. Check th e tir e s idew all
(¢ pa ge 2 58, fig. 209) to de
termin e the d esign ated lo ad
rating f or a specific tire .
Tire service life
The service life of tires depends on a lot of
different things including proper installation
and balancing, correc t tire pressure and driv
ing style .
Fig . 20 7 Tire t re ad : tread we ar ind ic a tors (TWI)
Fig. 208 Rotat ing tires for more ev en wea r
Tread Wear Indicator (TWI)
The o rigina l tires on your vehicle have
1/16 inch (1.6 mm) high "wear indicators"
c::;, fig. 207 running across the tread . Depend
ing on the make, there will be six to eight of
them evenly p laced around the t ire. Marks on
the t ire s idewa ll (for example " TWI" or other
symbols) indicate the positions of the tread
wear ind icators. Wo rn t ires must be r ep laced .
Tires and wheels 25 7
Different figures may app ly in other countries
c::;, .&. .
Tire pressure
Incor rect tire press ure ca uses premature wear
and can c ause sudden tire blow-out. For this
reason , tire pressure m ust be checked at least
once a month
c::;, page 2 53.
Driving style
Driving fast around curves, h eavy acce le rat ion
and har d bra king increase tire wear .
Rotating tires for more even wear
For all four tires on your ve hicle to have the
same service life, we recommend that the
front and rear t ires a re rotated according to
the tire manufact urer's suggested tire ro ta
tion intervals. Please remembe r the follow
ing:
- Tire rotation intervals may differ from the
veh icle service inte rva ls o utlined in your
Ma intenance and Warranty Boo klet .
- The longer one tire is used in one location
on the vehi cle, the more it wears at cer tain
points ; the refore, we recommend that you
follow t he tire manu fact urer's suggested
tire rotation intervals .
- Ve hicl es w ith front-wheel dr ive exper ience
more tread wear on the front w heels com
pared to a ll-wheel drive (quattro) .
- Please rot ate tires as shown
c::;, fig . 208.
- Extra care mus t be taken whe n rota ting di-
rection-spec ific tires
c::;, page 277 .
Wheel balancing
The wheels on new veh icles are balanced .
However, various s ituations during eve ryday
driv ing ca n cause them to become unba l
anced, re su lting in vib rat io ns you ca n usually
feel t hrough the s teer ing whee l.
Unbalanced wheels must be rebalanced to
avo id excessive wear on steering, s uspension
and t ires. A whee l m ust also be reba la n ced
whe n a new tire is insta lled.
)J,,-
258 Tires and wheels
Incorrect wheel alignment
Incorrect wheel alignment can cause exces
sive tire wear, impairing 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 always have tires
of the same size, construction and tread type.
For details see Qpage 202 .
.&_ WARNING
Sudden tire failure can lead to loss of con
trol, 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 hazard, they do
not grip well on wet roads and increase
your risk of"hydroplaning" and loss of
control.
- 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 a re 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.
New tires and replacing tires and wheels
New tires and wheels have to be broken in .
Fig. 209 Tir e specificat ion codes on t he s idewall o f a
t ire
No. Description
® Ratio of height to width (aspect ratio)
© Radial
® 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
@ Treadwear, 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
teristics 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
wheels be performed by an authorized Audi
dealer. They are familiar with recommended
procedures and have the necessary spec ial
too ls and spare parts as well as the proper fa
cilities for dispos ing of the old tires .
Authorized Audi dealers have the necessary information about techn ica l requ irements for
installing or changing tires and rims.
R eplacing t ires and w heels
Tires shou ld be rep laced at least in pairs and
not individua lly (for example both front tires
or both rear tires together).
Be s ure to read and heed the information to
the tire pressure monitoring system*
¢page 265.
Always buy rep lacement radial tires that have
the same specifications as the t ires approved
for your ve hicle by Audi. Replacement tires
must always have the same load rating speci
fication as the original equipment or approved
optional tires listed in the table¢
page 251.
Audi-approved specification tires are specially
matched to your vehicle and its load limits,
and can contribute to the important road hold
ing, driving characteristics, and safety of the
veh icle. The table
(¢page 251) lists spec ifica
tions of the t ires approved for the Audi mod
els covered by your Owner's Literature .
The tire pressure labe l located on the driver's
side B-pillar ¢
page 251, fig. 206 lists the
specif ications of the or iginal equipment tires
installed on your vehicle at the time it was
manufactured.
Federal law requires t ire manufacturers to
p lace standard ized information on the s ide
wall of all tires¢
fig. 209 . This information
i dent ifies and desc ribes the fundamental
characterist ics, the quality grade of the tire
and a lso provides a tire ide ntificat io n number
Tire s an d wheel s 259
for sa fety standard certification and in case of
a reca ll.
Tire specifications
Knowledge of tire specifications makes it eas
ier to choose the co rrec t tires . Radial ti res
have the tire specifications marked on the
sidewa ll, for examp le:
P235 / 60 R 18 103 H
This co nta ins the following information:
P Indicates the tire is for passenger cars
(where app licab le)
235 Nom inal tire width i n mm of the tire
from sidewall edge to sidewall edge. In
general, the larger the number, the wider
the tire
60 Height/w idth ratio in percent (aspect ra -
t io)
R Tire construct ion: Radial
18 Rim diameter code (i n inches)
103 Load ra ting code
H Speed ra ting letter code
XL (or "xl", "EXTRA LOAD", or "RF" Indicates
t h at the t ire is a "Reinfo rced" or an " Ext ra
Load " tir e
M+S (or "M/S") Indicates that the tire has
some mud and snow capab ility
The tires could also have the informat ion of
direction of rotat ion
¢ page 247 .
Tire manufacturing d ate
The manufact uring date is also indicated on
the tire sidewall (possibly only on the
inner
s ide of the wheel):
"DOT ... 2213 .. . " means, for example, that the
tire was produced in the 22nd week of 2013.
Speed rating (letter code )
The speed rating letter code on the whee ls in
dicates the maximum permissible road speeds
¢ .&. in Winter tires on page 263.
P up to 93 mp h (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)
•
•
260 Tire s and wheel s
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)
1 )
Your veh icle is norma lly fac to ry equipped with
tires, which possess excellent driving charac
teristics and give yo ur Audi opt imum driving
comfort . An e lectronic speed limiter
c:> page 27 wi ll normally prevent your vehicle
from go ing faster than the tire speed rating
c:> & .
U.S . DOT Tire Identification Numb er (TIN )
a nd tire manufacture d ate
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 p lant whe re it
was manufactured, and the last four numbers r epresent the week and year of manufacture.
F or example, the numbers 2213 mean tha t
the tire was produced in the 22nd wee k of
2013. The other n umbers are marketing co
des that may or may not be used by the tire manufacturer. This information is used to con
tact consumers if a tire defect requires a re
call.
Aud i O riginal tir e
Tires with the identification "AO" or "RO" have
been spec ially matched with your Aud i. We
recommend using only these tires because
they meet the highest standards regard ing
safety and driving character istics when used
correctly . Your authorized Aud i dealer w ill
g lad ly provide you with more information .
Tire ply composition and materials used
The number of plies indicates the number of
layers of rubber-coated fabric in the t ire. In
general, the greater the numbe r of plies, the
ll For tir es w it h a m ax im um spee d ca pabil ity ove r 149
mph (2 40 km/ h), ti re ma nufac tur ers somet imes use
t h e lett ers " ZR."
more we ight a tire can support. Tire manufac
turers also must indicate the materials in the
t ire, which include stee l, nylon, po lyester, and
others.
Ma ximum Load Rating
This number ind icates the maximum load in
ki log rams and pounds that can be carried by
the tire .
Tire quality grading for treadwear,
traction, and temp eratu re re sis tance
T read wear, t raction and tempe rature grades
c:> poge261 .
Maximum Permissible Inflation Pressure
Th is number is the g reatest amount of a ir
pressure that should ever be put in the tire
u nder norma l dr iv ing cond itions.
A WARNING
- Using incorrect or unmatched tires and/
or wheels or improper tire and wheel
comb inat ions can lead to loss of control,
coll is ion and serio us personal injury.
- Always use t ires, rims and whee l bolts
that meet the specif ications of original
factory- installed tires or other combina
tions that have been specifically ap p roved by the vehicle manufacture r.
- Tires age even if they are not being used
and 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
and then w it h specia l care and at lower
speeds.
- Never mo unt used tires on your veh icle if
you are no t 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 fa ilure
and loss of vehicle control.
-All four wheels must be fitted 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 spare tire is not the same as the
tires that are mounted on the vehicle -
for example with winter tires -only use
the spare tire for a short period of time and drive with extra care. Refit the nor
mal road wheel as soon as safely possi
ble.
- Never drive faster than the maximum
speed for which the tires on your vehicle
are rated because tires that are driven
faster than their rated speed can fail
suddenly.
- Overloading tires cause heat build-up,
sudden tire failure, including a blowout
and sudden deflation and loss of control.
- Temperature grades apply to tires that
are properly inflated and not over or un
derinflated .
- For technical reasons it is not always
possible to use wheels from other
vehicles -in some cases not even wheels
from the same vehicle model.
- If you install wheel trim discs on the ve
hicle wheels, make sure that the air flow
to the brakes is not blocked. Reduced air
flow to the brakes can them to overheat,
increasing stopping distances and caus
ing a collision.
- Run flat tires may only be used on
vehicles that were equipped with them at the factory. The vehicle must have a
chassis designed for run flat tires. Incor
rect use of run flat tires can lead to vehi
cle damage or accidents. Check with an
authorized Audi dealer or tire specialist
to see if your vehicle can be equipped
with run flat tires. If run flat tires are
used, they must be installed on all four
wheels . Mixing tire types is not permit
ted.
Tires and wheels 261
@ Note
- For technical reasons, it is not generally
possible to use the wheel rims from oth
er vehicles. This can hold true for wheels
of the same vehicle type.
- If the spare tire is different from the
tires that you have mounted on your ve
hicle (for example winter tires or wide
profile tires), then use the spare tire for a
short period of time only and drive with
extra care. Replace the flat tire with the
tire matching the others on your vehicle
as soon as possible.
- Never drive without the valve stem cap .
The valves could get damaged.
(® For the sake of the environment
Dispose of old tires in accordance with the
local requirements.
Uniform tire quality grading
- Tread wear
- Traction AA A B C
- Temperature ABC
Quality grades can be found where applicable
on the tire side wall between tread shoulder
and maximum section width
¢ page 258,
fig. 209.
For example: Tread wear 200, Traction 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 1S0 would wear
one and one half (1 1/2) times as well on the
government course as a tire graded 100. •
•
26 2 T ire s and wheel s
The relat ive performance of tires depends
upon the actua l conditions of their use, how
ever, and may depart sign ificantly from the
norm due to va riat ions in dr iving habits, serv
ice practices and differences in road character
istics and climate.
Tr action
The traction grades , from highest to lowest,
are AA, A, Band
C. Those g rades represent the
tire's ability 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 tempera ture grades are A (the h ighest),
B, and
C, representing the tire's resistance to
the generat ion of heat and its abi lity to dissi
pate heat when tested under controlled cond i
tions on a specified indoor laboratory test
wheel.
Sustained high temperature can cause the
materia l of the tire to degenerate and reduce
tire life, and excessive temperature can lead
to sudden ti re fa il ur e~ .&, .
The grade
C corresponds to a level of perform
ance which all passenger ca r tires must meet
u nder the Federa l Moto r Veh icle Safety Stand
a rd No.
1 09. Grades Band A represent higher
l eve ls of performance on t he 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 , hydroplan ing or peak traction
character istics.
A WARNING
The temperature grade for this t ire is es
tablished for a t ire that is properly inflated
and not overloaded . Excessive speed, un
derinflation, or excessive loading, eithe r
-
separately or in combination, can ca use
heat bui ldup and possib le 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 s ize and construction
type as the othe r tires on your vehicle .
Your vehicle is equipped with all-wheel drive,
th is will improve traction during winter driv
i ng, even with the standa rd t ires. However, we
strong ly recommend that you always equip all
four wheels on you r vehicle wi th cor rectly fit
ted win ter tires o r all -season tires, when win
te r road cond itions are expected . This also im
proves the vehicle's braking performance and
reduces stopping distances.
Summe r tires provide less grip on i ce and
snow.
Winter tires (snow tires) must always be fitted on all four whee ls .
Ask your author ized Audi dealer or qualified
workshop for permitted
winter tir e siz es. Use
on ly rad ial winter t ires .
Winter tires lose their effectiveness when the
tread is worn down to a depth of
O .15 7 inch
(4 mm).
Only drive w ith w inter t ires under winter con
ditions. 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 ti re, see notes on spare
whee l
¢page 258.
Please a lways remember that winter tires may
have a lower speed rating than the tires origi-
nally installed on your vehicle at the time it .,.
was manufactured. Please see ¢ page 259,
Speed rating (letter code) for a listing of the
speed rat ing letter codes and the maximum
speed at which the tires can be driven .
The speed rating letter code(¢
page 250) is
on the side wall of the tire
c::> page 258.
A WARNING
Winter tires have maximum speed limits
that may be lower than your vehicle's max
imum speed. Always know the maximum
speed before driving off . Never drive faster
than the speed permitted for your specific
w inte r tires . This will cause damage to the
tires leading to an ac cident and serious
pe rsonal inj ury to you and yo ur passen
gers .
A WARNING
Driv ing faster than the maximum speed
for which the winter tires on your vehicle
were designed can ca use tire fai lure in
cl uding a blowout and sudden deflat ion,
loss of control, crashes and serious per
sonal injuries . Have worn or damaged tires
rep laced immed iate 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
w hich the winter or other tires installed
on your veh icle are rated .
A WARNING
Always adjust your d rivi ng to the road and
traffic conditions. Neve r let the good ac
c eleration of the w inte r ti res and all-whee l
drive temp t you in to taking extra r is k s . A l
ways remember:
- When bra king, an a ll-wheel d rive vehicle
hand les in the s ame way as a front drive
vehicle.
- Drive carefu lly and reduce your speed on
icy and slippery roads, even winter tires
cannot he lp under blac k ice conditions.
Tire s an d wheel s 263
'
@) For the sake of the environment
Use summer tires when weather condi
tions permit. They are qu ieter, do not wear
as quickly and reduce fuel consumpt ion.
Snow chains
Snow cha ins may be fitted only to the rear
wheels, and o nly to certain tire sizes . Ask your
autho rized Aud i deale r on which tire sizes
snow cha ins can be used .
The snow chains must have low-prof ile links
and must not be th icker than 0.53 inch
(13.5 mm) , includ ing the lock .
Remove wheel center covers and trim discs
before putt ing snow cha ins on your vehicle
c::> Q) . For safety reasons cover caps must then
be fitted over the wheel bolts. These are ava il
able from autho rized Aud i dealers.
A WARNING
Using the wrong snow chai ns for your vehi
cle o r insta lling them incorrect ly can in
crease the risk of loss of cont ro l leading to
serious personal injury.
- Snow chains are available in different
sizes. A lways make sure to follow the in
structions p rov ided by the snow chain
manufacturer.
- When driving with snow chains never
drive faster than the speed permitted for
your specif ic snow chains.
- Always observe local regulations .
(D 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 down unnecessarily.
- Snow chains, which come into direct con
tact with the whee l rim , can scratch or
damage it . Therefore, make sure that the
snow chains are suitably covered. Check
the pos ition of the snow chains after
•
•
264 Tire s and wheel s
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 normally also applies to
veh icles with all-wheel dr ive .
Wheel bolts
Wheel bolts must always be tightened to the
correct torque.
The design of whee l bolts is matched to the
factory insta lled rims . If different rims are fit
ted, the correct wheel bolts with 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 bolts from a different vehicle -even if it
is the same model
¢ page 295.
.&_ WARNING
Improperly tig htened or maintained wheel
bolts can become loose ca using loss of
cont ro l, a co llision and serious p ersona l in
Jury.
- Always keep the wheel bolts and the
threads in t he wheel hubs clea n so the
wheel bolts can tu rn easily and be prop
erly tigh tened.
- N ever grease or oil the wheel bo lts and
the threads in the wheel h ubs. They can
become loose w hile d riving if greased or
oiled, even if tightened to the specified
torq ue.
- Only use wheel bolts that be long to the
rim being installed.
- N ever use different whee ls bolts on your
vehicle.
- Always mai nta in the co rrec t tighte ning
tor que 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 veh i- cle is moving.
If the tightening torque is
too high, the wheel bolts and threads
can be damaged and the wheel can be
come loose.
(D 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 changing a wheel, the
torque must be checked as soon as poss i
ble with a to rque wrench -preferab ly by an
a uthorized Aud i dea le r or qualified wor k
shop.
Low aspect ratio tires
Your A udi is factory -eq uipped w it h low aspect
ratio tires. These tires have been thoroughly
tested and been se lected specifically for your
model for their superb performance, road fee l
and handling under a variety of driving condi
t ions . Ask your authorized Audi dealer for
more details .
The low aspect ratio of these tires is ind icated
by a numeral of
55 or less in the tire's s ize
designation . The numeral represents the ratio
of the tire's sidewall height in relation to its
t read width exp ressed in percentage. Conven
tiona l tires have a he ight/w idth rat io of 60 or
more.
Th e performanc e of low-a spect-ratio tire s is
pa rticularly sensi tive to improp er inflation
pre ssure. It i s ther efor e important that low
a spe ct ratio tir es are inflated to the spe cified
pre ssure and that the inflation pre ssure i s
regula rly checked and mainta ined. Tire pre s
sure s should be checked at lea st once a
month and al way s befo re a long trip
¢ page 2 53, Checking tire pressure.
What you can do to a void tire and rim
damage
Low aspect ratio tires can be damaged more
easily by impact w ith potholes, curbs, gul lies
or ridges on the road, particularly if the tire is
underinflated . ..,.