spare wheel AUDI TT ROADSTER 2015 Owners Manual

Tires an d wheel s 185
you have stored. The system does not
recognize the load condition of your vehicle.
The effectiveness of the ti re pressu re monitor­
ing sys tem w ill be impaired if you store no r­
mal load pressures but then operate the vehi ­
cle at its maximum load¢,&.
See the illustration¢
fig. 136 for the location
of the label on dr iver's side B-pillar (color 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 at
the t ime o f go ing to press and is subject to change. In the
event of discrepancies, the ti re
pressure label (on driver's side B-pi llar) 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 Literature at the vehi­
cle's capacity weight and the t ire sizes instal­
led on the respective models as orig inal
equipment, or as a factory option.
Model/ Tire designation Tire pressure front Tire pre ssure rear
Engine full load full load
normal load condition normal load
condition
condition
(2 occupants condition
(2 occu-
( upto 2 oc-
plus lug- (
up to 2 oc-
pants plus
cupants) gage ) cupants)
luggage)
PSI kPA PSI kPA PSI kPA PSI kPA
TT /TI S: 225 /50 Rl 7 94H All Sea -
32 220 32 220 29 200 29 200 2.0 liter son
4-cyl in-
225/50 Rl 7 94W XL Hi gh
d er
Perf or man ce
32 220 32 220 29 200 29 200
24 5/ 45 Rl 7 95 H All S ea-
32 220 32 220 29 200 29 200 son
245 /45 R1 7 95YX L High
32 220 32 220 29 200 29 200 Performance
245 /40 R18 93H All S ea-
32 220 32 220 29 200 29 200 son
2 45 /40 R18 93Y XL High
32 220 33 230 29 200 30 210 Perf or mance
255 /35 R19 96 Y XL High
32 220 32 220 29 200 29 200
Perfo rmance
X L= r einf orced or extra lo ad tire. It ma y al so app ear a s xl, EX TR A LO AD, or RF on the tir e side-
wa ll.
The correct tire pressure for the spare wheel is
located on a label on the driver's side B-pillar.
Because technical changes may be made to
vehicle equ ipment during the model year, al­
ways compare the tire size designation on the
tire pressure label on your vehicle w ith the
tires on your vehicle. Ma ke sure that the tire
size information on the veh icle label is the same
as the size of the tires on the veh icle.
Th is is espec ially important if the veh icle be­
longs to someone else o r you boug ht the vehi­
cle w ith diffe rent rims/tires or you bought the
vehicle as a prev iously owned vehicle.
Remember, your safety and that of your pas-
sengers also depends on making sure that
IJll,
•
•

forget the spare tire. If the press ure in any tire
is too high when the tire is "cold," let air out
of the tire slowly with the edge of the t ire
gauge and keep checking the pressure until
you reach the pressure that is correct for the
load (passengers and luggage) and kind of
driving you plan to do .
If the pressure in any tire is too low, note the
d ifference between the pressure in the cold
tire and the pressure you need and add the a ir
that you need to reach the correct pressure for
the veh icle load (passengers and luggage) for
the tires on your veh icle as listed on the on
your ve hicle and in this manua l and the kind
of dr iving you p lan to do .
Never exce ed the ma ximum inflation pres ­
s ur e listed on t he tire s idewall for any re a­
s on.
Remember that the vehicle manufacturer , not
the t ire manufacturer , determ ines the correct
tire pressure for the tires on your veh icle .
It is important to check the tire pressure when
the t ires a re cold .
- Read the req uired tire press ure from the tire
pressure label located on driver's s ide B-pil­
l ar .
- Turn the valve stem cap counter-clockwise
to remove it from the tire valve .
- Place the air pressure ga uge on the valve.
- The tire pressures sho uld on ly be checked
and adjusted when the tires are cold . The
s light ly raised pressures of warm tires must
not be reduced.
- Adjust the tire pressure to the load you are
carrying.
- Re insta ll the va lve stem cap on the valve .
When should I check the tire pressure?
The correct tire pressure is espec ially impo r­
tant at high speeds . The pressure sho uld
therefore be checked at least once a month
and a lways befo re starting a journey.
When should I adjust the tire pressures?
Adj ust the tire pressu re to the load you are
carry ing . After changi ng a wheel
or replacing
Tire s an d wheel s 187
whee ls yo u have to adjust the ti re p ressu res
o n all whee ls. In addition, yo u m ust then initi­
a lize the new tire pressu res in the t ire pres­
s u re monitoring system
Q page 198.
A WARNING
Incorrect tire pressures and/or underinfla­
tion can lead sudden tire fa ilure, loss of
control, collision, serio us pe rsonal injury
or even death.
- When the warning symbol
It] appears in
the instrument cluster, stop and inspect
the t ires.
- Inco rrect tire pressure and/or underinfla­
tion can cause increased tire wea r and
can affect the handling of the vehicle and
stopping ability.
- Inco rrect tire pressures and/or unde rin­
flation can a lso lead to sudden t ire fail­
ure, including a blowou t and su dden de­
flation, caus ing loss of veh icle cont ro l.
- Th e drive r is responsib le for the co rrec t
tire pressures for all tires on the veh icle.
The applicable pressure values a re locat ­
ed on a sticke r on the driver's side B-pil­
lar.
- On ly when all tires on the vehicle are fil ­
led to the correct pressure, the t ire pres­
sure mon itor ing system can work cor­
rectly.
- The use of incorrect tire pressu re va lues
can lead to acc idents or other damage.
Therefore it is essential that the driver
observe the spec ified t ire pressure val ues
for the tires and the correct pressures for
the function of the t i re p ress ure monito r­
ing system.
- Always inf late t ires to the recommended
and correct t ire p ress ure before dr iv ing
off.
- Driving with unde rinflated tir es bend
mo re, lett ing t hem get too hot resulting
in tre ad separ ation, sudden tire failure
and loss of cont rol.
- Excessive speed and/overloading can
cause he at bu ild- up, sudden tire failure
an d loss of cont rol. •
•

192 Tire s and wheel s
handling when in good condition and properly
inflated ¢
.&..
We re commend that all wo rk on tires and
wheels be perfo rmed by an authorized A udi
deale r. T hey a re familiar with recommended
procedures and have the necessary special
too ls and spare parts as we ll 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 t ires and wheels
Tires shou ld be rep laced at least in pairs and
not individua lly ( for examp le both front tires
or both rear tires together).
Be sure to read and heed the information to
the tire pressure monitor ing system
¢ page 198.
A lways buy rep lacement radial tires that have
the same specifications as the tires approved
fo r your vehi cle by Audi. Replacement t ires
must always have the same load rating speci­
f ication as the original equipment or approved
optional tires listed in the table ¢ page 184 .
Aud i-approved specification tires are speci ally
matched to yo ur vehicle and its loa d l imits,
and can contribute to the important road ho ld ­
ing, d riving characteristics, and safety of the
vehicle. The table (q page 184) lists spec ifica­
tions of the t ires approved for the Audi mod­
e ls covered by your Owner's Literature .
The tire press ure labe l located on dr iver's side
B-pillar (q page 184, fig. 137) lists the speci­
f ications of the orig inal equipment tires in­
stalled o n your veh icle at the time it was man­
ufactured .
Federal law requires t ire manufacturers to
place standard ized information on the s ide­
wall of all tires q fig. 140. This information
ident ifies and describes the fundamental
characterist ics, the quality grade of the tire
and a lso provides a tire ident ificat ion number
fo r safety standa rd cert ificat ion and in case of
a rec all.
Tire specification s
Knowledge o f ti re specifications ma kes it eas­
ier to choose the correct tires. Radial ti res
have the tire specifications marked on the
sidewa ll, for examp le:
P245 /45R1795H
Th is conta ins the following information :
P Indicates the tire is for passenger cars
245 Nominal tire width in mm of the tire
from sidewall edge to sidewall edge. In general, the larger the number, the wider
the tire
45 Height/w idt h ratio in percent (aspect ra-
t io)
R Tire construct ion: Radial
17 Rim diameter code (i n inches)
95 Load rating code
H Speed ra ting letter code
XL (or "xl", "E XTRA LOAD", or "RF") indicates
t h at the t ire is a"Re inforced" or an " Extra
Lo ad " tir e
M+S (or "M/5") Indicates that the ti re has
some mud and snow capab ility
The t ires could also have the information of
direction of rotat ion q page 180.
Tire manufacturing date
The manufact uring date is also indicated on
the tire sidewall (possibly on ly 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 (lette r code)
The speed rating letter code on the whee ls in­
dicates the maximum permissible road speeds
q
.&. in Winter tires on page 196 .
p up to 93 mph (1 50 km/h)
Q u p to 99 mp h (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 (2
10 km/h)

194 Tire s and wheel s
Driving with different tires reduces vehi­
cle handling and can lead to a loss of
co ntrol.
- If the spare tire is not the same as the
t ires that are mounted on the veh icle -
for example with winter tires - on ly use
the spare tire for a short period of time
and dr ive with extra ca re. Refit the nor­
ma l road whee l as soon as safely possi­
ble.
- Never drive faste r than the maximum
speed for which the tires o n your veh icle
are ra ted because ti res th at are driven
faster than their rated speed can fail
sudden ly .
- Over loading t ires c ause heat b uild- up,
sudden tire failure, including a blowout
and sudden deflation and loss of control.
- T emperature grades app ly to tires t hat
are properly inflated and not over o r un­
derinflated.
- F or technical reasons it is not a lways
possible to use wheels from other
vehicles -in some cases not even w heels
from the same vehicle model.
- If you insta ll wheel trim discs on t he ve­
hicle whee ls, make sure that the air f low
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 t ires may on ly be used on
vehicles that were equ ipped w it h them
at the facto ry. The vehicle must have a
chassis des igned for run f lat t ires and a
fac to ry-installed t ire p ress ure moni to r­
ing system that ind ic a tes a loss of tire
pressure. Incorrect use of run flat tires
can lead to vehicle damage or accidents .
Check with an a uth orized Audi dea ler or
t i re spec ialist to see i f your vehicle can be
equipped with run flat tires. If r un flat
t ires a re used, they must be installed on
all four wheels . M ixing tire types is not
permitted . (D Note
-For technical reasons, it is not generally
poss ible to use the w heel rims from oth­
er ve hicles. T his can hold tr ue for wheels
of the same vehicle type.
- If the spare tire is diffe rent from the
tires that you have mounted on your ve­
hicle (for example winter tires or wide
profi le tires), then use the spare tire for a
short period of time only and drive w ith
extra care. Replace the flat tire w it h the
ti re mat ching the othe rs on your vehicle
as soon as possi ble.
- N ever d rive without the valve stem cap.
T he v alves co ul d get damaged.
@ For the sake of the environment
Dis pose of o ld tires in accordance w ith the
l ocal requirements.
Uniform tire quality grading
- Tread wear
- Tra ction AA A B (
- Temperature ABC
Quality grades can be found where applicab le
o n the tire s ide wall between tread shoulder
and maximum section width
¢ page 191,
fig . 140 .
For example: Tread wear 200 , Traction AA,
Temperature A.
All passenger car ti res must conform to Feder­
al Safety Req uirements in add ition to these
grades .
Tread wear
The tread wear g rade is a comparative rating
based on the wear rate of the tire when tested
u nder contro lled conditions o n a specified
government test course.
F o r example, a tire gra ded 150 wo uld wear
one and one ha lf (11/2) times as well on the
government course as a ti re graded 100.

The relative perform a nee of ti res depends
upon the actua l conditions of their use, how ­
ever, and may depart sign ificantly from the
norm due to var iat ions in dr iving habits, serv­
ice practices and differences in road character­
istics and climate .
Trac tion
The traction grades, from highest to lowest,
are AA, A, Band
C. Those grades 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 ¢,&. .
Temp erature
The temperature grades are A (the h ighest),
B, and
C, representing the t ire's resistance to
the generat ion of heat and its ability to dissi ­
pate heat when tested under controlled condi­
tions on a specified i ndoor 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 ilu re ¢ ,&. .
The grade
C corresponds to a level of perform ­
ance which all passenger car tires must meet
u nder the Federa l Moto r Veh icle Safety Stand­
a rd No.
1 09. G rades Band A represent h igher
l eve ls of perfo rmance on the laboratory tes t
wheel than the m inimum required by law .
A WARNING
The traction grade assigned to this ti re is
based on stra ight-ahead b raking t raction
tests, and does not include acceleration,
cornering, hydrop lan ing or peak traction
character istics.
A WARNING
The temperature grade for this t ire is es­
tablished for a t ire that is p roperly inflated
and not overloaded. Excessive speed, un­
derinflation, or excessive loading, either
-
Tire s an d wheel s 195
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 winter o r "snow" tires, those
with very deeply cut tread. These tires should
o nly be used in pairs and be installed o n all
four wheels . Make sure you purchase snow
t ires that are the same size and construction
type as the other tires on you r vehicle.
If your vehicle is equipped w ith all-whee l
drive*, th is w ill improve traction during winter
driv ing, even with the standa rd tires. Howev­
er, we stro ngly recommend that you always
equip all fou r whee ls o n your veh icle w ith co r­
rect ly fi tted winter tires o r all-season tires,
when w inter road condit ions are expe cted .
T his also improves the veh icle's b raking per ­
formance and reduces stopping distances.
Summe r tires provide less grip on i ce and
snow.
Winter tires (snow tires) must always be fitted
o n all fo ur wheels .
Ask your authorized Audi dealer or qualified
workshop for permitted
winter tire size s. Use
o nly rad ial w inter t ires.
Winter tires lose their effectiveness when the
tread is worn down to a depth of
0 .157 inch
(4 mm) .
Only drive w ith w inter t ires under w inter con­
dit ions. 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 tire, see notes on spare
whee l
¢page 191.
Please a lways remember that winter tires may
have a lowe r speed rating than the tires o rigi -
nally installed on your vehicle at the time it .,.
•
•

198 Tire s and wheel s
or ridges on the road, part icu larly if the tire is
u nderinflated .
I n o rder to m inim ize the o ccurrence of impact
damage to the t ires of your vehicle, we recom­
mend that you observe the following precau ­
tions:
- Always maintain recommended infla tion
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 rough or over such obstacles can damage
your tires. Impact with a curb may also cause damage to your tires.
- After any impact, immediately inspect your
tires or have them inspected by the nearest
authorized Aud i dealer. Replace a damaged
t ire 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 t ire failure . If you be lieve that a
t ire may have been damaged, replace the
t ir e as soon as possible.
- T hese tires may wea r mo re quick ly than oth­
ers.
- Please a lso remember that, wh ile these t ires
deliver respons ive handling, they may ride
l ess comfortably and make mo re no ise than
other choices.
Reduced performance in winter /co ld
sea son condit ion s
All ti res a re des igned for certa in pu rposes.
The low aspect ratio, ultra high performance
tires originally installed on your vehicle are in­
tended for max imum dry and wet road per­
formance and handling. They are not suitable
for cold, snowy or icy weather condit ions. If
you dr ive under those circumstances, you
should equip your vehicle with all -season or
winter tires, which offer better traction under
those cond it ions. We suggest you use the rec­
ommended snow or all-season tires specified
fo r your vehi cle, or their eq uivalent. Refer to
q page 195
for more detailed infor­
mation regarding winter tires.
Tire pressure monitoring system
General notes
Applies to veh icles: w ith tire pressure monitoring system
Each tire, incl uding the spare ( if provided),
sho uld be checked monthly when co ld and in­
flated to the inflation pressure recommended by the veh icle manufacturer on the veh icle
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 i n­
flat ion p ressure label, you should dete rmine
the p roper t ire infla tion p ress ure fo r th ose
t i res.)
As an added safety featu re, your ve hicle has
been equipped with a tire pressure mon itoring
system ( TPMS) tha t illum inates a low ti re
pressure tel ltale when one o r more of your
tires is significant ly under-inflated . Acco rding­
l y, when the low tire pressure telltale i llumi­
nates, you shou ld stop and check your tires as
soon as possib le, and inflate them to the
proper pressure. Driving on a sign ificantly un­
der- inflated t ire causes the tire to overheat
and can lead to tire fa ilure . Under-inflat ion al ­
so reduces fuel effic iency and tire tread life ,
and may affect the vehicle 's hand ling and
stopp ing abili ty.
Please note that the TPMS is not a substitute
for proper tire ma intenance, and it is the d riv­
er's respons ibility to maintain co rrect tire
pressure, even if under-inflation has not
reached the leve l to tr igger illum inat ion of the
T PMS low tire pressu re tellta le .
You r vehicle has also been equipped w ith a
T PMS ma lf u nction indicator to ind icate when
the sys tem is not o perating p roperly . Th e
T PMS ma lfunction indicator is combined w ith
t h e low tire pressure te lltale. When the sys­
tem detects a malfunction, the telltale will
flash for approximately one min ute and then ..,_

210 What do I do now?
slip and cause an injury if it does not
have sufficient hold on the vehicle.
- A soft or unstable surface under the
jack may cause the vehicle to slip off
the jack. Always provide a firm base for
the jack on the ground . If necessary,
use a sturdy board under the jack.
- On hard, slippery surface (such as tiles)
use a rubber mat or similar to prevent
the jack from slipp ing .
- To help prevent injury to yourself and
your passengers:
- Do not raise the vehicle unti l yo u are
sure the jack is securely engaged.
- Passengers must not remain in the ve­
hicle when it is jacked up.
- Make sure that passengers wait in a
safe p lace away from the vehicle and
well away from the roadway and traffic.
- Make sure jack position is correct, ad­
just as necessa ry and then continue to
ra ise the jack .
(D Note
A floor jack or the pads on the hoist arms
must
not be posit ioned at the points
shown
-arrows- .
Taking the wheel off
Follow these instructions step-by-step for
changing the wheel.
Fig. 157 Wheel ch an ge: us ing the sc rewdrive r hand le
(w ith the b lade removed) to turn the bolts
Fig. 158 Whee l change : alignmen t pin inside the top
hol e
After you have loosened all wheel bolts and
raised the vehicle off the ground, perform the
following steps to remove and replace the
wheel:
Removing the wheel
.,. Use the hexagonal socket in the screwdriv­
er handle
to completely turn out the top­
most whee l bolt and set it aside on a
clean
surface c;, fig. 15 7.
.,. Screw the threaded end of the
alignment
pin from the tool kit hand-tight into the
now vacant bolt hole <=>
fig. 158 .
.,. Then completely unscrew the other wheel
bolts as described above.
.,. Take off the whee l leaving the alignment pin
in the bolt hole
c;,(D .
Putting on the wheel
.,. Lift the spare wheel and carefully s lide it
over the alignment p in to guide it in place
c;,(D .
.,. Use the hexagonal socket in the screwdriver
handle to screw in and tighten all whee l
bolts
slightly .
.,. Unscrew the alignment p in and insert and
tighten the remaining wheel bolt slightly like the rest .
.,. Turn the jack handle counter-clockwise to
lower the vehicle until the jack is fully re­
leased .
.,. Use the wheel bo lt wrench to tighten all
wheel bolts firmly ,=:,
page 208 . Tighten
t hem
crosswise, from one bolt to the ( ap­
proximately) opposite one, to keep the
wheel centered.

(D Note
When removing or installing the wheel,
the rim could hit the bra ke rotor and dam­
age the rotor . Wor k carefully and have a
second person help you.
N ever use the hexa gonal s ocket in the ha n­
d le of the screwdriver to loosen or t ighten
the wheel bolts.
- Pull the reversib le blade from the screw­
drive r before yo u use the hexagonal
socket in t he handle to t urn the whee l
bo lts .
- When mounting tires with
unid irectional
tread design
make s ure the tread pat­
te rn is poi nte d the r ight way
¢pag e 211.
- The wheel bolts should be clea n and easy
to tu rn . Ch eck for dirt and corros ion on
the mat ing su rfaces of both the whee l
a nd th e hu b. Remove a ll dir t fro m these
s ur fa ces before remo unting the wheel.
Notes on wheel change
Pl ease rea d the information ¢ page 191, New
tires and replacing tires and wheels,
i f you are
going to use a spare t ire which is different
from the tires on your ve hicle.
Afte r you change a tire:
- Check the tire pressure on the spare imme ­
diately after mounting .
- Have the wheel bolt tightening torque
che cked with a torque wrench as soon as
possible by your authorized Audi dealer or
a qualified service station.
- With steel and alloy wheel rims, the wheel
bolts are correctly tightened at a torque of
90 ft lb (120 Nm) .
- If you notice while changing a tire that the
wheel bolt s are co rroded and diffi cult to
turn , then they should be replaced before
you check the t ightening torque.
What do I do now? 211
- Replace the flat tire with a new one and
have it installed on your vehicle as soon as
possible. Remount the wheel cover .
Until then , drive with extra care and at re­
duced speeds.
A WARNING
-
- If you are go ing to e quip your ve hicl e
wit h tires o r rims which differ from those
which were factory installed, t hen be
sure to read the information¢
page 191,
New tires and replacing tires and
wheels .
-Always sto re the tools secu rely in lug­
gage compartment. Othe rwise, in a n ac­
cident o r su dd en maneuv er they cou ld fly
forwa rd, causi ng injury to passe ngers in
the vehicle.
Tires with unidirectional tread design
Tires with unidirectional tr ead design must be
mounted with their tread pattern pointed the
right dire ction.
A u nidirectional tire can be identified by ar­
rows on the sidewall,
which point in the direc ­
tion of t he rota tion. Yo u m ust follow the
s p ecifie d direction of rot ation. This i s nece ssa ­
r y in order fo r these tires to develop t heir op­
timum charac ter istics regard ing grip, road
no ise, wear, and hydrop la ning.
•
•