flat tire AUDI TT ROADSTER 2015 Owners Manual

Knee airbags . . . . . . . . . . . . . . . . . . . . . 123
Side airbags . . . . . . . . . . . . . . . . . . . . . 125
Child Safety . . . . . . . . . . . . . . . . . . . 129
Important things to know ......... .
Child safety seats ................ .
Instal ling a chi ld safety seat .. .. .. . .
Additional Information ........... .
Vehicle operation ............ .
Intelligent technology .. .. .. . .
Notice about data recorded by vehicle
control modules .............. ... .
Electronic Stabilization Control (ESC) .
Rear spoiler ................ ... . .
Braking ........................ .
E lect ro-me chan ical power assis t ... . .
D riving w ith your quattro ......... .
Energy management ............. .
Driving and environment .....
The first 1,000 miles (1,500 km) and
afterwards .............. .. .. .. . .
Avoid damaging the vehicle ........ .
Driving through water on roads ... . .
Catalytic converter ............... .
Shutting down vehicle ............ .
Operate your vehicle economically and
minimize pollution ............... . 129
134
137
140
141
141
141
14 1
143
144
145
1 46
146
1 4 9
149
150
150 150
151
15 1
Tra iler towing . . . . . . . . . . . . . . . . . . . . 153
Vehicle care . . . . . . . . . . . . . . . . . . . 154
Vehicle care and cleaning . . . . . 154
General information . . . . . . . . . . . . . . 154
Car washes . . . . . . . . . . . . . . . . . . . . . . 154
Cleaning and care information . . . . . . 155
Fuel supply and filling your
fuel tank . . . . . . . . . . . . . . . . . . . . . . .
160
Gasoline . . . . . . . . . . . . . . . . . . . . . . . . 160
Fuel tank. . . . . . . . . . . . . . . . . . . . . . . . 161
Checking and filling . . . . . . . . . . . 164
Engine hood . . . . . . . . . . . . . . . . . . . . . 164
Eng ine oil . . . . . . . . . . . . . . . . . . . . . . . 166
Eng ine cooling system ............. 171
Brake fluid ...................... 174
Table of contents 3
Battery . . . . . . . . . . . . . . . . . . . . . . . . . 175
Windshield/headlight washer
container . . . . . . . . . . . . . . . . . . . . . . . 179
Tires and wheels ........... .. .
Tires ..... .. .... .. . .. .......... .
Tire pressure monitoring system ... .
Run-flat tire s .. .. ............... .
Do-it-yourself service ........ .
What do I do now? ........... .
Trunk escape handle ............. .
Vehicle tool kit .... .............. .
T ire repai r .... ... .. ............. .
What should I be aware of when
h . t
' 7 c angmg a ire .................. .
Fuses and bulbs .. .. .. ..... ... .
El ectr ical fuses . .. .. ............. .
Bulbs .......................... .
Emergency situations ........ .
General ........................ .
Starting by pushing or towing ...... .
Starting with jumper cables ....... .
U se of jump er cables ............. .
Emergency towing with commercia l
tow truck ...................... .
Lifting vehicle .. .. ............... . 180
180
198
201
204
204
204
204
205
208
212
212
215
2 16
216
216
216
217
218
221
Technical data . . . . . . . . . . . . . . . . . 222
Technical Data . . . . . . . . . . . . . . . . . 222
Vehicle identification . . . . . . . . . . . . . . 222
Weights . . . . . . . . . . . . . . . . . . . . . . . . 222
Dimensions . . . . . . . . . . . . . . . . . . . . . . 223
Capacities . . . . . . . . . . . . . . . . . . . . . . . 223
Gasoline engines . . . . . . . . . . . . . . . . . 224
Consumer Information . . . . . . . 225
Warranty coverages . . . . . . . . . . . . . . . 225
Operating your vehicle outside the
U.S. A. or Canada . . . . . . . . . . . . . . . . . 225
Audi Service Repair Manuals and
Literature . . . . . . . . . . . . . . . . . . . . . . . 225
Maintenance. . . . . . . . . . . . . . . . . . . . . 225
Additional accessories, modifications
and parts rep lacement . . . . . . . . . . . . 227
•
•

98 Driving Safely
recommended co ld tir e in flat io n pr es­
s ur es for the ve h icle at its maxim um c a­
p acity weight a nd t he tires t hat we re o n
you r vehicl e at t he time it was ma nufac­
tur ed. For r ecomm ended tire pre ss ure s
f o r nor mal load co nd itio ns, pl eas e see
ch ap ter
~pag e 184 .
Reporting Safety
Defects
Applicable to U.S.A.
If you believe that your vehicle
has a defect which could cause
a crash or could cause injury or
death, you should immediately
inform the National Highway
Traffic Safety Administration (NHTSA) in addition to notify­
ing Audi of America, Inc.
If NHTSA receives similar com­
plaints, it may open an investi­
gation, and if it finds that a
safety defects exists in a group
of vehicles, it may order a recall
and remedy campaign. Howev­
er, NHTSA cannot become in­
volved in individual problems between you, your dealer, or
Audi of America, Inc .
To contact NHTSA, you may call
the Vehicle Safety Hotline toll­
free at:
Tel.: 1-888-327-4236 (TTY: 1-800-424-9153) or
1-800-424-9 3 9 3 or you may write to:
Administrator NHTSA 1200 New Jersey Avenue, SE
Washington, D .C. 20590
You can also obtain other infor­ mation about motor vehicle
safety from :
http://www.safercar .gov
Applicable to Canada
If you live in Canada and you
believe that your vehicle has a
defect that could cause a crash
,
injury or death , you should im­
mediately inform Transport
Canada, Defect Investigations
and Recalls. You should also no­
tify Volkswagen Group Canada, Inc.
Canadian customers who wish
to report a safety-related de­
fect to Transport Canada, De­
fe ct Investigation s and Recalls,
may either call Transport Cana­
da toll-free at:
Tel.: 1-800-333-0510 or
Tel.: 1-819-994-3328 (Ottawa region and from other coun­
tries)
TTY for hearing impaired: Tel.: 1-888-67 5-6863

122 Airbag sys te m
- Never modify t he front bumper or parts
of the veh icle body .
- Always make sure that the side airbag
can inflate without interference:
- Never install seat covers or replace­
ment upholstery ove r the front seat­
backs that have not been spec ifi cally
approved by A udi.
- Never use add itiona l seat cushions that
cover the areas whe re the side airbags
inflate .
- D amage to the o rigina l seat covers or
to the seam in the area of the side air­
bag module must always be repaired
immediately by an authorized Audi
dealer.
- The airbag system can be activated only once . Afte r an airbag has inf lated, it
must be replaced by an author ized Audi
dealer or qualified technic ian who has
the techn ica l information, tra ining and
special equipment necessary.
- The airbag system can be deployed only
once. After an a irbag has been deployed,
it must be replaced w ith new replace ­
ment parts designed and approved espe­
cially for your Aud i model version. Re­
placement of complete a irbag systems
or airbag componen ts must be per­
formed by qualified workshops only .
Make sure that any airbag service act ion
is entered in your Audi Warranty
& Main­
tenance booklet under
AIRBAG REPLACE­
MENT RECORD.
-For safety reasons in severe accidents,
the a lternator and starter are separated
from the vehicle battery with a pyrotech­
nic circuit interrupter.
- Work on the pyrotechnic cir cuit inter­
rupter must on ly be performed by a
qua lified dealer - risk of an accident !
- If the vehicle or the c ircuit interrupter
is sc rapped, all applicable safety pre ­
cautions must be followed.
{® For the sake of the environment
Undeployed airbag modules and preten­
s ioners might be classif ied as Perchlorate
Materia l -special handling may app ly, see
www .dtsc.ca.gov/hazardouswaste/per­
ch lorate . When the veh icle or parts of the
restraint system including airbag modu les
and safety belts with pretensioners are
scra pped, all applicab le laws and regu la­
tions must be obse rved. Your authorized
A udi dealer is familia r with these require­
ments and we recommend that you have
your dealer perform this service fo r you .
· Other things that can affect Advanced
Airbag performance
Chang ing the veh icle's suspens io n system can
change the way that the Advanced Airbag Sys­
tem perfo rms in a c rash. For examp le, using
t ir e- rim combinat ions not approved by A udi ,
lower ing the veh icle, c hanging the st iffness of
the suspens ion, including the spr ings, suspen­
sio n struts, shock absorbers etc . can change
the forces that ar e measured by the airbag
sensors and sent to the electronic contro l
unit. Some suspension changes can, for exam­
ple, increase the force levels measured by the
senso rs and make the airbag system deploy in
c rashes in which it wou ld no t deploy if the
c h anges had not been made. Other kinds of
c h anges may reduce the fo rce leve ls meas ­
u red by the sensors and p reven t the airbag
from dep loying when it should.
A WARNING
Changing the vehicle's suspension includ­
i ng use of unapproved tire-rim combina­
tions can change Advanced Airbag per­
fo rmance and increase the r isk of serious
personal injury in a crash .
- Never install suspension components
that do not have the same performance characterist ics as the components origi ­
na lly installed on your vehicle .
- Never use tire-rim combinations that
have no t been approved by Audi.

-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 summer and winter
tires are designed for the cond itions that
are typ ic al in those seasons. Aud i recom­
mends using w inter t ires du ring the win-
Glossary of tire and loading terminology
Accessory weight
means the comb ined weight (in excess of
those standard items which may be replaced)
of automatic tra nsmission, power steering,
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 height to the width of
the tire in percent . Numbers of 55 or lower in­
d icate a low sidewall for improved steering re­
sponse and better overall handling on dry
pavement .
Bead
means the pa rt 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.
Tire s an d wheel s 181
ter months . Low temperatu res signifi­
cantly decrease the elastic ity of summer
t ires, which affects traction and braking
ability. If summer tires are used in very
co ld temperatures, cracks can form on
the tread bars, res ulting in permanent
ti re damage that can cause loud drivi ng
noise and unbalanced tires. Aud i is not
responsib le for this type of damage.
- Burn ished, polished or chromed rims
must not be used in winter weather. Th e
surfa ce of the rims does not have suffi­
c ien t cor rosion pro te cti on for this and
c o ul d be pe rmanen tly damaged by road
salt or similar substances. This damage
is not covered by warranty.
Cold tir e inflation pressure
me ans the t ire press ure re commended by the
vehicle manufacturer fo r a tire o f a des igna ted
size that has not bee n driven for more than a
coup le of miles (k ilomete rs) at low speeds in
the three hour pe riod before the tire press ure
is measured or adjusted.
Curb weight
means the weight o f a motor vehicle with
standard equipment including the maximum
capacity of fuel, o il, and coolant, air cond i­
tion ing and additional weight of optiona l
equipment.
E xtra load tire
means a tire designed to operate at higher
l oads and at higher inflation press ures than
the corresponding standard tire. Extra load
tires my be ident ified as "XL", "xl", "EXTRA
LOAD", or "RF" on the sidewall.
Gross Axle Weight Rating ("GAWR")
means the load-carrying capacity of a single
axle system, measured at the tire-ground in-
ter~ces.
~
•
•

182 Tires and wheels
Gross Vehicle Weight Rating ("GVWR")
means the maximum total loaded weight o f
the vehicle.
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 inflat ion pressure. You
may not find this informat ion on all tires be­
cause it is not requ ired by law .
Maximum load rating
means the load rating for a t ire at the maxi­
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 opt ions weight
Maximum (permissible) inflation pressure
means the maximum cold inflation pressure
to which a tire may be inflated . Also called
"maximum inflation press ure."
Normal occupant weight
means 150 lbs. (68 kilog rams) times the
number of occupants seated in the vehicle up
to the tota l seating capacity of your vehicle.
Occupant distribution
means distribution of occupants in a veh icle.
Outer diameter
means the overall 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 or ribs .
Ply
means a layer of rubbe r-coated parallel cords.
Production options weight
means the combined weight of those installed
regular production opt ions we ighing over 5
lbs. (2.3 kg) in excess of those standa rd items
wh ich they replace, not previously considered
in curb weight or accessory weight, including
heavy duty brakes, ride levelers, heavy duty
battery, and specia l trim .
Radial ply tire
means a pneumat ic tire in which the ply cords
that extend to the beads are laid at substa n­
tially 90 deg rees to the centerline of the
tread.
Recommended inflation pressure
see <=;> page 181, Cold tire inflation pressure .
Reinforced tire
means a tire designed to operate at higher
loads and at higher inflation pressures than
the corresponding standard tire. Re inforced
t ir es my be identified as "XL", "xl", "EXTRA
LOAD", or "RF" on the sidewall.
Rim
means a metal support for a tire or a t ire and
tube assembly upon which the tire beads are
seated .
Rim diameter
means nominal diameter of the bead seat. If
you change your wheel s ize, you will have to
purchase new tires to match the new r im di­
ameter .
Rim size designation
means rim diameter and width.
Rim width
means nom inal distance between rim flanges.
Sidewall
means that portion of a t ire between the
tread and bead .

Speed rating (letter code)
means the speed at wh ich a tire is des igned to
be driven for extended periods of t ime . The
ratings range from 93 mph (150 km/h) to
186 mph (298 km/h)
¢page 192. You may
not find this information on all tires because
it is not required by law.
The speed rating letter code, where applica­ b le, is molded on the tire sidewall and indi­
cates the maximum permissible road speeds
¢ &. in Winter tires on page 196.
Tire pressure monitoring system
means a system that detects when one or
more of a vehicle's tires are underinflated and
illuminates a low tire pressure warn ing te ll­
tale .
Tread
means that portion of a tire that comes into
contact with the road.
Tread separation
means pulling away of the tread from the tire
carcass .
Treadwear indicators (TWI)
means the projections within the princ ipal
grooves designed to give a visual indication of
the degrees of wear of the tread. See
¢
page 190, Tread Wear Indicator (TWI) for
more informat ion on measuring tire wear.
Uniform Tire Quality Grading
is a tire information system developed by the
United States National Highway Traffic Safety
Admin istration (NHTSA) that is designed to
h elp buyers make relative comparisons among
tires . Th e U TQG is not a safety rating and not a
g uar antee that a tire will last for a prescribed
number of mi les or per form in a certain way.
It simply gives tire buyers additional informa­
tion to combine with other considerations,
Tires and wheels 183
such as price, brand loyalty and dealer recom­
mendations . Under UTQG, tires are graded by
the tire manufact urers in three areas: tread­
wear, traction and temperature resistance .
The UTQG informat ion on the tires, molded in­
to the sidewalls .
U.S. DOT Tire Identification Number (TIN)
This is the tire's "serial number" It begins
with the letters "DOT" and indicates that the
tire meets all federa l standards. The next two
numbers or letters ind icate the plant where it
was manufactured, and the last four numbers
represent the week and year of manufacture.
For example,
DOT ... 2213 ...
means that the tire was produced in the 22nd
week of 2013. The other numbers are market­
ing codes that may or may not be used by the
tire manufacturer. This information is used to
contact consumers if a tire defect requires a
recall.
Vehicle capacity weight
means the rated cargo and luggage load plus
150 lbs . (68 k ilograms) times the vehicle's to­
tal seating capacity as listed on the label lo­
cated on the driver's side B -pillar .
Vehicle maximum load on the tire
means that load on an individual tire that is
determined by distributing to each axle its
share of the maximum loaded vehicle weight
and dividing by two.
Vehicle normal load on the tire
means that load on an individual tire that is
determined by distributing to each ax le its
share of the curb weight, accessory weight,
and normal occupant weight (distr ibuted in
accordance with table below¢
page 184)
and dividing by two.
•
•

184 Tires and wheels
Occupant loading for vehicle normal load (no luggage)
Designated seating capacity, number of occu- Vehicle normal load (no luggage), number of
pants occupants
2 2
Cold tire inflation pressure
Tire pressure affects the overall handling, performance and safety of a vehicle.
Fig. 136 Tire pressure label: located on driver's side B­
pillar
Tire pressure genera lly refers to the amount
of air in a tire 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 kilopascals (kPa), the interna­
tional measuring unit and in pounds per
square inch (PSI). Tire pressure is based in
part on the vehicle's design and load limit -
the greatest amount of we ight that the vehi­
cle can carry safe ly and the tire size. The prop­
e r tire pressure is freq uent ly referred to as the
"recommended cold tire inflation pressure."
A ir in the tires expands when the tire heats up
because of interna l frict ion when it flexes in
use. The t ire pressure is higher when the tire
has warmed up than when it is "cold." It is the
inflation pressure in a "cold" tire that counts.
Therefore, you shou ld never let air out of a
warm tire to match "cold tire inflation pres­
sure " recommendations. The tires would then
be underi nflated and could fail suddenly .
Maintaining proper tire pressure is one of the
most important things you can do to help
avoid sudden tire failure. Underinflated tires
are a major cause of sudden tire failure . K eep­
ing tires at the rig ht pressure is also impor­
tant for sa fe and responsive vehicle handling,
traction, braking and load carrying.
Tire pres-
-ID
-
-----------------~ ,.
•===~=~~=~~=-= :g
c
==. ~: I = I ::,,. I)@ TI- ........ ....,..,____, ..... _.,....,.._,...... .... _ ... "-.................. ~ ... --................ ..
1N SIZE COlD lWIE MlS5UM. ,..-u .,...,,..... PlillSSION OU flH£US A fllOD ,_,.
AVNff -KPA, a PSI
---KPA, a PSI
-.. _ -KPA, a PSI
Fig. 137 Tire pre ssure label
SEE OW9'Ell"'S MA.HUAlFOI' ADDITIOII IAL lo~FOAMATlON VOIIIU MAMJ(L OU PROf'Wl£TAJRE '°'-'AP\USDf R£NSEIOHEMUITS
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 for your Audi
depe nd on the kind of tires on your vehicle
and the number of passengers and/or amount
of luggage you will be transporting.
Th e tire pressure label is located on the driv­
er's side B-pillar . The tire pressure labe l lists
the recommended cold tire inflation pressures
for the vehicle at its maximum capac ity
weight and tires that were on your veh icle at
the time it was manufactured .
If you wish to improve comfort when operat­
ing the vehicle at normal load (no luggage)
up to 2 occupants, you can adjust tire pres­
sures to those specified for normal vehicle
load. Before operating the vehicle at maxi­
mum load, you must increase the tire pres­
sures to those specified for maximum vehicle
load ~&. -
Bear in mind that the tire pressure monitoring
system can only monitor the tire pressures ..,.

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,
•
•

186 Tire s and wheel s
load limits a re not exceede d. Vehicle load in­
cludes everybody and everything in and on t he
ve hicle . These load limits are technically refer­
red to as the vehicle's Gross Vehicle We ight
Rating ("GVWR"). The Gross Axle Weight Rat­
ing ("GAWR") is the maximum load that can
be applied at each of the veh icle 's two axles .
The Gross Vehicle Weight Rating and the
Gross Axle Weigh t Rat ing a re listed on the
safety compliance st ic k er labe l located on the
driver's side B-pill ar. T he tire pressure label on
your Audi lists the maximum combined weight of a ll of the occupants and luggage or
othe r cargo that the vehicle can carry. For the
locat ion of the tire pressure label¢
fig. 136.
A WARNING
Overloading a vehicle can cause loss of ve­
hicle control, a crash or other acc ident, se­
r ious personal in jury, and even death.
- Carry ing more weight than your vehicle
was desig ned to carry will prevent the
vehicle from hand ling p roperly and in­
cr ease the risk of a loss of veh icle con­
t ro l.
- T he brakes on a veh icle that has been
overloaded may not be ab le to stop t he
vehicle within a sa fe distance.
- Ti res on a vehicle that has been ove rload ­
ed can fail suddenly causi ng lo ss of con­
tro l and a crash .
A WARNING
-Incorre ct tire pressures and/or underin­
flation can lead to a serious o r fatal acci ­
dent.
- Incorrect tire pressures and/or underin­
flation cause increase d tire wear and can
affect the handling of t he vehicle .
- Incorrect tire pressures and/o r underin­
flation can also lead to sudden tire fa il­
ure, incl uding a blowo ut and sudden de­
flation, causing loss of vehicle control.
Checking tire pressure
The correct tire pressure for the tires original­
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
t ir e p ressu re label a nd in the table
¢
page 184, Cold tire inflation pressure. This
means tha t the pressu re m ust be che cked and
adjus ted whe n the t ire has not been dr iven fo r
more than a couple of miles (kilometers) at
l ow speeds d uring the previous t hree ho urs.
Air in the tires expands when the tire heats up as a result of interna l frict ion as it flexes in
use. The tire pressure is higher when the tire
has warmed up than whe n it is "cold ."
It is the inflation pressure in a "co ld" t ire that
counts. Therefore, you should never let a ir o ut
of a warm tire to match "Cold t ire inflat ion
pressure" recommendat io ns ¢
page 184 . The
t ires wou ld then be unde rinflated and could
fail suddenly .
The tire pressure label on your Audi lists the recommended co ld tire inflation pressures fo r
the new, orig inal equ ipment tires that were
o n your veh icle at the time it was manufac­
tu red. Fo r the lo cat ion of t he labe l
¢page 184, fig . 136.
Most t ires lose air naturally over t ime . They
can a lso lose some air if you d rive over a pot­
hole or hit a curb while par king. It is usually
not poss ible to see whethe r the rad ial tires
u sed today are underinfla ted just by loo king
at them .
T he refore, be sure to check t ire p ressu res at
l east on ce a mo nth and a lways befo re going
o n a long trip. M ake s ure to ta ke the n umbe r
of peop le and the amount of luggage into ac ­
count when a djusting tire pressure for a trip -
even on e that yo u wo uld not conside r to be
" long." See ¢
page 188, Tires and vehicle
load limits
for more important information .
Always use an accurate tire press ure ga uge
when checking and ad justing inflat ion pres­
s u res. Check all of the tires and be sure not to ..,.

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. •
•