winter tires AUDI R8 SPYDER 2014 Owners Manual

7 2 On the road
Speed warning system
Speed warning system
The speed warning system helps you to keep
your driving speed below a set speed limit.
Fi g. 7 6 D isplay: Speed warning
The speed warning sys tem warns the d river if
he exceeds a prev iously stored maxim um
speed. A warning tone will sou nd as soon as
the vehicle speed exceeds the set speed by
about 3 mph (3 km/h). At the same t ime, a
warn ing symbol appears in the display
¢fig. 76.
The speed warning system has
two warning
th reshold s that function independently of
each other and that have somewhat different
purposes:
Speed warn ing 1 HIil/iS) ( Canada model s)
You can use speed warning 1 to set the maxi ­
m um speed w hile you are driving. This setting
will remain in effect until you t urn off the igni­
tion, assuming that you have not changed or
reset the setting.
The speed warning symbo l
[l;[i] (Canada
models) in the warn ing 1 display appears
when you exceed the maximum speed. It goes
out when the speed falls be low the stored
maximum speed .
The speed warning symbo l w ill also go out if
the speed
exceeds the stored max imum speed
by more than about 25 mph (40 km/h) for at
least 10 seconds. The stored maximum speed
i s deleted.
Sett ing speed warning 1
¢page 72.
Speed warning 2 [Cl!r.t] (Canada models)
Stor ing warning 2 is recommende d if you al­
ways
want to be reminded of a ce rtain speed,
for example when you are t rave ling in a co un­
try that has a general maxim um speed limit,
or if you do not want to exceed a specified
speed for winter tires.
The speed warn ing 2 symbol,
tt]/[f] (Canada
models) appears in t he display when yo u ex­
ceed the stored speed limit. Unlike warning 1,
it will not go o ut until the vehicle speed drops
below the stored speed limit .
Setting speed warn ing 2
¢ page 73.
a) Tips
Even though your vehicle is eq uipped w ith
a speed war ning system, you sho uld still
watc h the speedometer to ma ke s ure yo u
are not driv ing faster than the speed limit.
Speed warning 1: setting a speed limit
Warning threshold 1 is set by the button .
Fig. 77 Section of ins trumen t cl uster: Set/C heck bu t­
ton
Storing the maximum speed
" Dr ive at the des ired maximum speed.
" Press the knob but ton¢
fig. 77 until the
sym bo l
i=!:> page 72, fig . 76 appears .
Resetting the maximum speed
" Dr ive the veh icle at a speed of at least
3 mph (5 km/h)
" Press the knob for mo re tha n 2 seconds .
The speed warn ing symbol
[CJ (USA mode ls)/
i•j (Canada models) will appea r briefly in the
display when you release the but ton to
Ill>

Power steering
When the engine is running, power steering
makes it easier for the driver to steer.
Power steering he lps the driver steer the vehi­
cle with little physical effort .
If the engine is not runn ing, the power steer­
ing system is also not wo rking. In this case,
you will find it extreme ly difficult to turn the
steering whee l.
If you t urn t he steering fully to the le ft or
right when the vehicle is stationary, you place
a very heavy load on t he power steering sys ­
tem . T urning the steering wheel fu lly to the
left or r ight will cause noise in the system . It
a lso reduces engine idle speed.
(D Note
Do not hold the steering turned fully to
the left or right for more than 10 seconds
when t he engine is running. There is a risk
of damage to the power steeri ng system .
@ Tips
-In the event of a power steering system
failure, or if the eng ine is not running
(while being towed), you wi ll st ill be able
to stee r the ve hicle . However, you will re­
quire more effort to do so .
- If the power steer ing system has a leak
or is defective, you should immed iately
contact a qualif ied wo rkshop.
- The powe r stee ring system requires a
spec ial hyd raulic f luid. The powe r stee r­
i ng fl uid reservo ir is lo cated in the en­
g ine compar tment . Th e cor re ct hydra ulic
f lui d leve l is important for p ro per opera ­
tion o f the power steering sys tem . The
power steer ing fl uid leve l is checked ac­
cord ing to the Aud i maintenance service
schedule.
Dry sump Lubrication
H igh lateral and long itud inal forces affect the
engine and the vehicle d uring sporty driving.
Ory sump lubr ication ensures that your eng ine
Int ellig ent technolog y 149
is supplied wi th oi l and properly lubricated
even under these conditions .
In a "no rma l" veh icle the o il pump sends the
o il from the o il p an t o the lubr ication points in
t h e engine. The oi l then ret urns to the o il pan .
In extreme situations , the oil p ump may draw
in a ir, which results in insufficient oi l pressure.
Wi th dr y sump lubri cat ion, the o il is not in the
oi l pan (it is "dry"), but in a separate oil tank.
While one p ump supplies t he e ngine with oil ,
a second pump suctions the oil out of the en­
gine and returns it to the oil tank. Because the
o il tank is tall and narrow, oil pressure is con­
stant even under extreme conditions .
In add ition, the oi l pan in vehicles with dry
sump l ubrication is noticeab ly shallower. This
allows the engine to be installed lower in the
vehicle , bring ing down the center of grav ity .
T his imp roves your ve hicle's handling .
Driving with your
quattro ®
With all-wheel drive, all four wheels are driv ­
en.
General information
With a ll-wheel d rive, powe r is distr ib uted to
al l four wheels. This happens autom atic ally
depen ding on your d riving s tyle and the ro ad
conditions a t the time . See also ¢
page 144.
The all-whee l dr ive concept is des igned for
high eng ine power. Your veh icle is except ion­
al ly powe rf ul and h as ex cellen t driving charac ­
teristics both under normal driving cond itions
and on snow and ice . Always read and follow
safety precaut ions ¢&. .
Winter tires
When dr iving in the win ter, yo ur vehicle wi th
a ll- wheel d rive h as an advantage, even w it h
regular tires. In winter road conditions it may
be advisable to mount winter tires (or all-sea ­
son tires) for improved driveability and brak­
ing : these tires must be mounted on
all four
wheels . See also¢ page 203, Winter tires. .,..
•
•

Hand washing
When washing your veh icle by hand, fi rst soft ­
en the dirt with copious amounts of water and rinse it
off as b est you can.
Then clean the veh icle using a soft
s ponge , an
auto gl ove or a low -press ure wa sh bru sh .
Work from the top down -sta rting with the
roof . Use a
s h ampoo only for very stubborn
dirt.
Rinse the sponge or auto glove thorough ly at
fr equent intervals.
C lea n the wheels, doo r sill s and simi lar a reas
last . Use a separate sponge fo r th is.
_&. WARNING
- Car washes with conveyors can damage
the vehicle tires , which could cause the
ti re to lose pressure sudden ly while driv­
ing and put you at risk for an accident.
Do not use car washes with conveyors.
- Switch
off the ignit ion when you wash
yo ur vehicle to avo id an accident.
- Protect yo ur hands and arms from sharp
metal edges when you clean the under­
body, the ins ide of the whee l wells or the
wheel covers to avoid cutting yourself .
- When washing your vehicle in the winter:
Moist ure and ice in the brake system can
affect the brakes.
- Never wash tires with a jet that sprays
water in a direct stream . T hi s could cause
invisible damage to the tires and weaken
them, even if the spray is from a relative ­
ly long distance and for a short time.
Damaged and wea kened tires can fail
and cause a ccidents and pe rsonal inj ury.
0 Note
- Never dr ive your veh icle through any au ­
tomatic car wash that fails to p rov ide e i­
the r suff icient clearance for your veh icle
or sufficient tra ck wid th fo r your tires .
Ris k of expensive damage to the veh icle's
u nderbody, tires, and rims!
- As descr ibed in you r Warra nty
& M ainte­
nance booklet , damage or malf unct ion
Cleaning and protec tion 157
due to m isuse o f the vehicle or fai lure to
operate the vehicle in acco rdance with
the inst ruct ions of th is Owner's Manua l
wi ll not be covered under warranty.
- Fold the exte rior mirrors flat -there is a
r isk of damag ing the exterior m irrors .
Power folding exterior mirrors must not
be folded in or out by hand . Use the pow­
er function!
- Do not wash the vehicle in d irect sun­
light . You may damage the paint.
- Do not use sponges designed to remove
insects, rough k itchen sponges , or s imi­
lar products . You risk damag ing the
pai nt s urface.
- Do not wash the vehicle using cleani ng
products that contain alcohol when the
e ng ine is ho t. This increases the risk of
damage to plast ic components, such as
c rack ing .
- You should remove deb ris (such as in­
sects) from the headlight lenses on a
regu lar bas is, for example when re fuel ­
ing your vehicle. Never clean the head­
lights with a dry cloth or sponge. Use a
wet cloth o r sponge . It is best to use
soapy water.
- Never clean t ires using a nozz le that
sprays water in a direct stream. Damage
can occur even with a relatively long
spraying distance and for a very short
t ime.
- To avoid damaging your veh icle, always
make sure that there is sufficient dis­
tance between the spray head and soft
materials like rubbe r hoses, plast ic parts
and sound-deadening materials. Never
aim the spray head a t the same point for
a long time. This also app lies to cleani ng
head lights and pa inted b umpers . Re ­
member : the closer the nozz le is to the
surface of the material, the greater the
stress on the materia l.
@ For the sake of the environment
Wash yo ur vehicle on ly at spec ia lly de­
signed facilities . They can prevent any dirty
water contaminated by oil from entering
Iii>-
•
•

190 Tire s and wheel s
-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 t ire failure
and loss of vehicle control.
- If you notice unusual vibration or if the
vehicle pulls to one side when driving, 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 summer and winter tires
are designed for the cond itions that are
Glossary of tire and loading terminology
Accessory weight
means the comb ined we ight (in excess of
those standard items which may be rep laced)
of au toma tic tra nsmission, 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 ratio of the he ight 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 overall handling on dry pavement .
Bead
means the part of the ti re that is made of
steel wires, wrapped or reinforced by ply cords
and that is shaped to fit the rim.
Bead s eparation
means a b reakdown of the bond between
components in the bead.
Cord
means the strands forming the plies in the
tire . typ
ica l in those seasons . Audi recommends
using winter tires during the winter
months . Low temperatures signif icant ly
decrease the e lasticity of summer tires,
which affects tract ion and brak ing ability.
If summer tires are used in very co ld tem­
peratures, cracks ca n form on the tread
bars, res ulting in permanent tire damage
that can cause loud driving no ise and un­
balan ced t ires. Audi is not responsible for
th is type of damage .
Cold tire inflation pre ssure
means the t ire p ressure recommended by the
vehicle manufacturer fo r a tire of a des ignated
s ize that has not bee n driven for more than a
coup le of miles (k ilometers) at low speeds in
the three hour period before the tire pressure
is measured or adjusted.
Curb weight
means the we ight of a motor ve hicle w ith
standard equipment including the max imum
capacity of fuel, oil, and coolant, air condi ­
tioning and additional weight of optiona l
equipment.
E x tra load tire
means a t ire designed to ope rate a t higher
loads and at highe r inflation p ressu res than
the corresponding standard tire. Extra load
tires my be identified as "XL", "xl", "EXTRA
LOAD", or "RF" on the sidewall.
Gross A xle Weight Rating ("GAWR ")
means the load -carry ing capacity of a s ingle
axle system , measured at the tire-ground in­
terfaces.
Gr oss Vehicle Weight Rating ("GVWR ")
means the maximum total loaded we ight of
t h e vehi cle. .,.

192 Tires and wheels
Speed rating (letter code)
means the speed at wh ic h a tir e is des igned to
be d riven for extended per io d s of t ime. The
ratings range from 93 mph (150 km/h) to
186 mph (298 km/h)
¢ page 200 . You may
not find this in format ion on all tires because
it is not required by law.
The speed rating letter code, w here a pplica­
b le, is molded on the tire s idewa ll and indi­
cates the maxim um permissible road speeds
¢ &. in Winter tires on page 204.
Tire pressure monitoring system
means a sys tem that detects whe n one or
mo re of a vehicle's t ires a re under inflated and
il lum inates a low t ire p ress ure warn ing te ll­
tale.
Tread
means t hat port ion of a tire tha t comes into
con tact w it h t he road.
Tread separation
means pull ing away of the t read from the t ire
car cass .
Treadwear indicators (TWI)
means t he p rojections withi n the pr inc ipal
g rooves desig ned to give a v isua l ind ication of
the deg rees of wear of the tre ad . See
¢pag e 198, Tread W ear Indicator (TWI) for
mo re inf ormat io n on measu ring tire we ar.
Uniform Tire Quality Grading
is a ti re i nfo rmation system developed by the
United States Nat io nal Highway Traffic Safety
Admi nistration (N HTSA) that is designed to
h e lp buye rs m ake re lative compa risons among
tires. The UT QG i s n ot a safety r ating an d no t a
g ua ran tee t hat a tir e will las t fo r a presc ribed
n umber of m iles or per form i n a certa in way .
It sim ply g ives tire buyers a dditio na l info rma­
tion to combine w ith other considerations, s
u ch as pr ice, brand loyalty a nd dealer recom ­
me ndations. Under U TQG, tires are gra ded by
t h e tire man ufact urers in three areas : tread­
wear, traction and temperature resistance .
The UTQG informat io n on the tires, m olded in ­
to the sidewalls .
U.S. DOT Tire Identification Number (TIN )
This is the tire's "se ria l numbe r" It begins
with the letters "DOT" and ind icates that the
t ir e meets all federa l standards. The next two
numbers or letters ind icate the plant where it
was ma nufactu red, and the last four numbe rs
r eprese nt the week and year of ma nufact ure.
Fo r exampl e,
DOT ... 2213 ...
means that the tire was produced in t he 22nd
wee k of 2013. The ot her numbers are market­
ing codes that may or may not be used by the
t ire manufacturer . This information is used to
contact consumers i f a tire defect requires a
r ecall .
Vehicle capacity weight
means the rated cargo and luggage load p lus
150 lbs. (68 k ilograms) times the vehicle's to­
ta l seating capacity as listed on the label lo­
cated on the driver's side B-pilla r.
Vehicle maximum lo ad on the tire
means that load on an individua l tire that is
determined by distrib uting to eac h axle its
share of the maxim um loaded vehicle weight
and divid ing by two .
Vehicle normal load on the tire
means that load on an individua l t ir e that is
determined by distrib uting to eac h ax le its
share of the curb weight, accessory weight,
and normal occ upant weig ht (d istr ibuted in
accorda nce wit h tab le below¢
page 193)
and divid ing by two .

200 Tires and wheels
handling when in good condition and properly
inflated
¢ .&. .
We recommend that all work on tires and
wheels be perfo rmed by an authorized A udi
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 dealers have the necessary information about technica l requirements for
installing or changing tires and r ims.
Replacing tires and wheels
Tires should be rep laced at least in pairs and
not individually (for example both front tires
or both rear tires together).
Be sure to read and heed the information to
the tire pressure monitoring system
¢ page 201.
A lways buy rep lacement radial tires that have
the same specifications as the tires approved
fo r your vehicle 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 193.
Aud i-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
vehicle. The table (q page 193) lists specifica­
tions of the tires approved for the Audi mod­
els covered by your Owner's Literature .
The tire pressure labe l located on driver's side
B-pillar (¢ page 193, fig. 150) lists the speci­
f ications of the orig inal equipment tires in­
stalled on your veh icle at the time it was man­
ufactured .
Federal law requires tire manufacturers to
place standardized information on the s ide­
wall of all tires q fig. 152. This information
identifies and describes the fundamental
characterist ics, the quality grade of the tire
and also provides a tire ident ificat ion number
fo r safety standard certificat ion and in case of
a recall.
Tire specifications
Knowledge of tire specifications makes it eas­
ier to choose the correct tires. Radial tires
have the tire specifications marked on the
sidewa ll, for examp le:
P235 / 35 R 19 91 Y
This conta ins the following information :
P Indicates the tire is for passenger cars
235 Nominal tire width in mm of the tire
from sidewall edge to sidewall edge. In
general, the larger the number, the wider
the tire
35 Height/w idt h ratio in percent (aspect ra-
t io)
R Tire construct ion: Radial
19 Rim diameter code (in inches)
91 Load rating code
Y Speed rating letter code
XL (or "xl", "EXTRA LOAD", or "RF") indicates
t h at the t ire is a"Reinforced" or an "Extra
Load " tire
M+S (or "M/5") Indicates that the ti re has
some mud and snow capability
The tires could also have the information of
direction of rotat ion q page 189.
Tire manufacturing date
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 examp le, 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
q
.&. in Winter tires on page 204 .
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)

202 Tire s and whee ls
cause ma lfunction of the tire pressure moni­
toring system, and is not recommended (cord
materia l information in molded on the tire
sidewall).
A lways check your tire pressure monitoring
system indicator after replacing one or more
tires on your vehicle . If the tire pressure mon i­
toring system indicator flashes, or is on, your
system is not working properly.
A WARNING
-Us ing incorrect or unmatched tires and/
or wheels or improper tire and wheel
combinations can lead to loss of cont rol,
co llision and serious persona l injury.
- Always use tires, rims and wheel bo lts
that meet the specifications of orig inal
factory-installed t ires or other combina­
t ions that have been specifically ap­
proved by the vehicle manufac turer .
- T ires age even if they are not be ing used
and can fail suddenly, especially at high
speeds. Tires that are more than 6 years
o ld can only be used in an emergency
and then with special care and at lower
speeds.
- Never mount used tires on yo ur vehicle if
you 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.
- Only the wheel/tire s izes specified by the
manufacturer may be used on veh icles
with all-wheel dr ive.
- Never drive faster than the maximum
speed for which the tires on your veh icle
are rated because ti res that are driven
fas ter than their rated speed can fail
sudden ly.
- Overloading t ires cause heat build-up,
sudden tire failure, incl uding a blowout
and sudden deflation and loss of control.
- Temperature grades app ly to tires that
are prope rly inflated and not over or un­
derinflated. -
For technica l reasons it is not always
possible to use wheels from other
vehicles -in some cases not even wheels
from the same veh icle model.
- Do not use run-flat tires on your vehicle.
Using run-flat tires can lead to veh icle
damage or crashes .
(D Note
-For technical reasons, it is not generally
possible to use the wheel rims from oth­
er veh icles . Th is can hold true for wheels
of the same vehicle type .
- If you should put different wheels and
tires on your veh icle (e.g. winter wheels
and tires), you must be certain that the
wheels and tires are compatible with the
tire pressure monitoring system. Other­
w ise the system will register a malfunc­
tion and a fau lt message w ill be dis­
played. For more information, contact
your authorized Audi dealer.
(D Note
- When installing new tires, be care ful not
to damage the valves or tire pressure
monitoring system sensors.
- Never drive without the valve stem cap.
The va lves co uld get damaged.
- If the sensors must be replaced, then
the valve must also be replaced at the
same time.
@ For the sake of the environment
Dispose of o ld tires in accordance with the
l ocal requirements .
(D Tips
Tires with the identification "ROl'' have
been specially matched wi th you r A udi. We
recommend using on ly these tires because
they meet the highest standards regarding
safety and driving characteristics when used correctly. Your authorized Audi R8
dealer w ill gladly provide you with more
i nformat ion.

Uniform tire quality grading
- T read wear
- T raction AA A BC
- Temperature ABC
Qua lity grades can be found where applicable
on the tire side wa ll between tread shoulder
and maximum sect ion width
c::> page 199,
fig . 152.
Fo r exa mpl e: Tread wear 200 , Traction AA,
Temperature A.
All passenge r car tires must confo rm to Feder ­
a l Safety Requirements in addition to these
grades .
Tread we ar
The tread wear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a speci fied
government test course .
F or example, a t ire graded 150 wou ld wear
one and one half (1 1/2) t imes as well on the
government course as a tire graded 100 .
The rela tive pe rfo rmance of tires depends
upon the a ctua l conditions of their use, how­
ever, and may depart sign ifican tly from the
norm due to variations in driving habits, serv­
ice practices and differences in road character ­
istics and climate.
Traction
The traction grades , from highest to lowest,
a re AA, A, Band
C. T hose grades represent the
tire's ability to stop on wet pavement as
measured under controlled conditions on
specified government test surfaces of asphalt
and concrete. A tire marked C may have poor
traction performance
c::> &. .
Temp erature
The temperature grades are A (the highest),
B, and C, representing the tire's resistance to
the generat ion of heat and its ability to dissi­
pate heat when tested under controlled condi­
tions on a specified indoor laboratory test
wheel.
Tire s an d wheel s 203
Sustained high temperature can cause the
materia l of the tire to degenerate and reduce
tire life, and excessive temperat ure can lead
to sudden tire failure
c::> &, .
The grade C corresponds to a level of pe rform ­
ance which all passenger car tires must meet
u nder the Federal Motor Vehicle Safety Stand­
ard No. 109. Grades Band A represent higher levels of performance on the laboratory test
whee l than the minimum required by law.
A WARNING
The t raction grade assigned to th is tire is
based on straight-ahead braking traction
tests, and does not include accele rat ion,
cornering, hydroplaning or peak t raction
characterist ics.
A WARNING ~
The temperature g rade for this tire is es-
tablished for a tire that is properly inflated
and not overloaded . Excessive speed, un­
derinflation, or excessive loading, e ither
separately or in combinat ion, can ca use
heat bui ldup 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 w inter or "snow" tires, those
with very deeply cut tread. These tires should
o nly be used in pairs and be installed on all
fou r wheels . Make sure you purchase snow
t ir es that a re t he same s ize and construction
type as the othe r ti res on you r vehicle.
If your vehicle is equipped w it h all -wheel
drive*, th is w ill imp rove traction during w inter
driv ing , even with the standa rd tires . Howev­
er, we strongly recommend that you always
equip all four whee ls o n your ve hicle w ith cor­
rect ly fitted winter tires o r all-season t i res,
when winter road conditions are expected .
ll-
•
•

204 Tire s and wheel s
This also improves the vehicle's braking
performance and reduces stopping distances .
Summer tires provide less g rip on ice and
snow.
W inter t ires (snow t ires) must always be fitted
on all four wheels.
Compat ible tire pressure mon itoring sensors
must be installed on all four winter tires for
the tire pressure monitor ing system to func­
tion properly ~
page 201 .
Ask your authorized Aud i dea le r or qualified
workshop for permitted
wint er tire sizes. Use
on ly radia l wi nte r tires .
W inter t ires lose the ir effectiveness when the
tread is worn down to a depth of 0 .157 inch
(4 mm).
Only drive with winter tires under winter con­
d itions. Summer tires handle better when
there is no snow or ice on the roads and the
temperature is above 45 °F (7 °C).
Please always remember that w inter t ires may
have a lower speed rating than the t ires origi­
na lly installed on your vehicle at the t ime it
was manufactured. Please see~
page 200,
Speed rating (letter code)
for a List ing of the
speed rat ing letter codes and the maximum
speed at wh ic h t he t ires ca n be dr iven .
The speed rating letter code
( ~ page 192) is
on the s ide wall of the tire~
page 199 .
A WARNING
Winter tires have maximum s peed limits
th at may be lowe r than you r vehi cle's m ax­
im um speed. Always know the maxim um
speed befo re d riving off . Never d rive faster
than the speed permitted for your specific
w inte r tires. This will cause damage to the
tires leading to an accident and serious
personal in jury to you and yo ur passen­
gers.
A WARNING
Dr iv ing faster than the maximum speed
for which the w inter t ires on your vehicle
-
were designed can cause t ire fail ure in­
cluding a blowout and sudden deflation,
l oss of contro l, crashes and ser ious per­
sona l injuries. Have worn o r damaged tires
r eplaced immediately .
- W inter tires have maximum speed rating
that may be lower than yo ur vehicle 's
maximum speed.
- Never d rive faster than the speed for
which the w in ter or othe r tires installed
on yo ur vehicle a re rated .
A WARNING
-Always ad just your dr iv ing to the road and
traffic condit ions . Never let the good ac­
ce ler ation o f the w in ter t ires and a ll-wheel
d rive tempt yo u into t aking extra risks. Al­
ways remember:
- W hen braking, an all-wheel drive veh icle
handles in the same way as a front drive
vehicle .
- D rive c arefully and redu ce your spee d on
icy and slippery roads, even w inter t ires
cannot help under black ice conditions .
@ For the sake of the environment
Use summer tires when weather condi­
tions permi t. T hey are qu iete r, do no t wear
as quickly and reduce fuel consumpt ion .
Snow chains
Snow chains may be fitted only to the rear
whee ls, and on ly to certain tire sizes . Ask your
authori zed Aud i dea ler on which tire si zes
snow chains ca n be used .
The snow chains must have low -profi le links
and must not be th icker than 0.53 inch
(13 .5 mm), includ ing the lock.
Remove whee l center covers before putt ing
snow c hains on your vehicle
~ CD . For safety
reasons cover caps must then be f itted over
the wheel bolts. These are available from au­
thorized Audi dea le rs.

206 Tires and wheels
and handling under a variety of driving condi­
tions. Ask your authorized Audi dea ler for
more details.
The low aspect ratio of these tires is indicated
by a numeral of
55 or less in the tire's size
designation. The numeral represents the ratio
of the tire's sidewall height in relation to its
tread width expressed in percentage . Conven­
tional tires have a height/width ratio o f 60 or
more .
The performance of low-aspect-ratio tires is
particularly sensitive to improper inflation
pressure. It is therefore important that low
aspect ratio tires are inflated to the specified
pressure and that the inflation pressure is regularly checked and maintained . Tire pres·
sures should be checked at least once a
month and always before a long trip
~ page 195, Checking tire pressure.
What you can do to avoid tire and rim
damage
L ow aspect ratio t ires can be damaged more
ea5i ly by impact with potho le5, curb5, gullie5
or ridges on the road, particularly if the tire is
underinflated .
In order to minimize the occur rence of impact
damage to the tires of your vehicle, we recom ­
mend that you observe the following precau­
tions :
- Always maintain recommended inflation
pressures. Chec k your tire pressure every
2.000 miles (3.000
km) and add air if neces ­
sary .
- Drive carefu lly on roads with potholes, deep
gullies or ridges. The impact from driving
t h ro ugh or over such obstacles can damage
yo ur tir es. Impact with a curb may also
cause damage to your tires.
- After any impact, immediately inspect your
tir es or have them inspected by the nearest
authorized Aud i dealer. Replace a damaged
t ir e as soon as possible.
- Inspect your t ires every 2.000 miles (3.000
km) for damage and wear. Damage is not al­
ways easy to see . Damage can lead to loss of
air and underinflation, wh ich could eventu- ally cause
tire failure. If you believe that a
tire may have been damaged, replace the
tire as soon as possible.
- These tires may wear more quickly than oth­
ers.
- Please also remember that, while these tires
deliver responsive handling, they may ride
less comfortably and make more noise than
other choices.
Reduced performance in winter/cold
season conditions
All tires are designed for certain purposes.
The low aspect ratio, ultra h igh performance
t ir es or iginally installed on your vehicle are in­
tended for maximum dry and wet road per­
fo rmance and handling . They are not suitable
for cold, snowy or icy weather conditions. If
you drive under those circumstances, you
sho uld equ ip your vehicle with all-season or
winter tires, which offer better traction unde r
those conditions. We suggest you use the rec ­
ommended snow or all-season t ires specified
for your vehicle, or their equivalent .
Refer to~
page 203 for more de tailed infor­
mation regarding winter tires.
Tire pressure
monitoring system
General notes
Each tire, including the spare (if provided),
sho uld be checked monthly when co ld and in­
flated to the inflation pressure recommended
by the veh icle manufact urer on the vehicle
placard or tire inflation pressure label (If your
vehicle has tires of a different size than the
s ize indicated on the vehicle placard or tire in ­
flat io n pressure label, you should dete rmine
the proper t ire inflation pressure for those
t i r es.).
As an added safety feature, your veh icle has
been equipped with a tire pressure monitoring
system ( TPMS) that illum inates a low tire
pressure telltale when one or more of you r
t ir es is significantly under-inflated. According -
ly, when the low tire pressure telltale ..,.