2008 AUDI TT ROADSTER airbags

Knee airbags . . . . . . . . . . . . . . . . . . 161
Side airbags . . . . . . . • . . . . . . . . . . . 164
Child Safe ty . . . . . . . . . . . . . . . . . . . . 168
Important things to know . . . . . . . 168
Important safety instruct ions for
using child safety seats ........ .
Child safety seats .. ...... ..... .
Insta lling a ch ild safety seat .... .
Add it ional Information .... ... .. .
Vehicle operation ....... .
Intelligent technology ......... .
Notice about da ta recorded by
veh icle contro l modules ....... .
Electronic Stab ilizat ion Program
(ESP) ... ... ... ... .... .... .. ... .
Rear spoiler .................. .
Braking .................... .. .
El ectro -mechanical power assist .
Driving with your quattro® ..... .
Driving and environment .... . .
171
173
177
180
183
184
184
184
187
188
190
191
192
The first 1,000 miles (1,500 km) and
afterwards . . . . . . . . . . . . . . . . . . . . 192
Cata lytic converter . . . . . . . . . . . . . 193
Avoid damaging the vehicle . . . . . 194
Operate your vehicle economically
and minimize pollution ... .. ... . 194
Trailer towing . . . . . . . . . . . . . . . . . . 196
Vehicle care ..... ... ... ... .
C leaning and protection ...... .
General information
Care of exterior ............ .... .
Care of interior .. .. .. .... ... .. . .
Fue l supply and filling your fuel
tank .. ... ... ... ... ...... .... .. . .
Gasoline .... ...... ........•. ...
Fuel tank ..................... .
Checking and filling ...... ... .. .
Eng ine hood ... ........ ....... .
Engine compartment .......... .
Engine oil ........ ... ...... .... .
E ngine cooling system ......... .
Brake fluid ..... .. ... ... ...•. ...
Battery . ...... .. .. .......... .. .
W indshield/headlight washer
conta iner .. .... ... ... .. ... .. .. .
Tires and whee ls ...... ..... ... .
T ires . ............ ...... · ·, · · · ·
Run -flat tires ......... ... .... .. . 199
200
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200
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214
2 14
2 15
2 19
219
221
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227
230
231
236
238
238
257
Table of contents
Do-it-yourself service .. . 261
What do I do now? . . . . . . . . . . . . . 262
Trunk escape handle . . . . . . . . . . . . 262
Veh icle tool kit . . . . . . . . . . . . . . . . . . 262
T ire repair . . . . . . . . . . . . . . . . . . . . . . 263
What should I be aware of when
changing a tire? . . . . . . . . . . . . . . . . 267
Fuses and bulbs ................ 273
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Bu lbs ......... .. ... .... ... ..... 277
Emergency situations . . . . . . . . . . 278
Genera l . . . . . . . . . . . . . . . . . . . . . . . . 278
Starting by pushing or towing . . . . 278
Starting with jumper cables . . . . . . 278
Use of jumper cables . . . . . . . . . . . . 279
Emergency towing with commercial
tow truck . . . . . . . . . . . . . . . . . . . . . . 281
Lif ting vehicle . . . . . . . . . . . . . . . . . . 283
Technical data
General information
287
288
Explanation of technical data 288
Vehic le identif ication . . . . . . . . . . . . 288
Vehicle care I I irechnical data

___ o_ r_iv _ i _n....; g::;_ S_ a_f _e _ly=-- -------------------------------------------------
Driving Safely
General notes
Safe driving habits
Please remember -safety first!
This chapter contains important information, tips, suggestions and
warnings that you need to read and observe for your own safety, the
safety of your passengers and others. We have summarized here
what you need to know about safety belts, airbags, child restraints as well as child safety. Your safety is for us
priority number 1. Always
observe the information and warnings in this section -for your own
safety as well as for that of your passengers.
The information in this section applies to all model versions of your
vehicle. Some of the features described in this sections may be
standard equipment on some models, or may be optional equip­
ment on others. If you are not sure, ask your authorized Audi dealer.
& WARNING
• Make certain that you follow the suggestions and heed the
WARNINGS in this Manual. It is in your interest and in the interest of your passengers.
• Always keep the complete Owner's Literature in your Audi
when you lend or sell your vehicle so that this important informa­
tion will always be available to the driver and passengers.
• Always keep the Owner's literature handy so that you can find
it easily if you have questions. •
Safety equipment
The safety features are part of the occupant restraint
system and work together to help reduce the risk of injury
in a wide variety of accident situations.
Your safety and the safety of your passengers should not be left to
chance. Advances in technology have made a variety of features
available to help reduce the risk of injury in an accident. The
following is a listing of just a few of the safety features in your Audi:
• sophisticated safety belts for driver and all passenger seating
positions,
• safety belt pre-tensioners,
• front airbags,
• knee airbags for the front seats,
• side airbags in the front seats,
• LATCH anchorages for child restraints,
• adjustable steering column .
These individual safety features can work together as a system to
help protect you and your passengers in a wide range of accidents.
These features cannot work as a system if they are not always prop ­
erly adjusted and properly used!
Safety is everybody's responsibility! •
Important things to do before driving
Safety is everybody's job! Vehicle and occupant safety
always depends on the informed and careful driver.
For your safety and the safety of your passengers, before
driving always: .,_

Driving Safely -
----------------
& WARNING (continued)
• Always adjust the driver's seat and the steering wheel so that
there are at least 4 inches (10 cm) between the knees and the
lower part of the instrument panel.
• Always hold the steering wheel on the outside of the steering
wheel rim with your hands at the 9 o'clock and 3 o'clock positions
to help reduce the risk of personal injury if the driver's airbag inflates .
• Never hold the steering wheel at the 12 o'clock position or with
your hands at other positions inside the steering wheel rim or on
the steering wheel hub. Holding the steering wheel the wrong way
can cause serious injuries to the hands, arms and head if the
driver's airbag inflates
• Pointing the steering wheel toward your face decreases the
ability of the supplemental driver's airbag to protect you in a colli­
sion .
• Always sit in an upright position and never lean against or
place any part of your body too close to the area where the airbags
are located.
• Before driving, always adjust the front seats and head
restraints properly and make sure that all passengers are properly
restrained .
• Never adjust the seats while the vehicle is moving. Your seat
may move unexpectedly and you could lose control of the vehicle.
• Never drive with the backrest reclined or tilted far back! The
farther the backrests are tilted back, the greater the risk of injury due to incorrect positioning of the safety belt and improper
seating position.
• Children must always ride in child seats=>
page 168. Special
precautions apply when installing a child seat on the front
passenger seat=>
page 146. •
Controls and equip­
ment Safety first Vehicle operation
Proper seating position for the front
passenger
The proper front passenger seating position is important
for safe, relaxed driving.
For your own safety and to reduce the ris k of injury in the
event of an accident, we recommend that you adjust the
seat for the front passenger to the following pos ition:
- Move the front passenger seat back as far as possible.
There must be a minimum of 10 inches (25 cm) between
the breastbone and the instrument panel =>
&.
- Adjust the angle of the seatback so that it is in an upright
position and your back comes in full contact with it
whenever the vehicle is moving.
- Adjust the head restraint so that the upper edge is as
even with the top of your head as possible but not lower
than eye level and so that it is as close to the back of your
head as possible =>
page 132.
-Keep both feet flat on the floor in front of the front
passenger seat.
- Fasten and wear safety belts correctly=>
page 141.
For detailed information on how to adjust the front passenger's
seat, see => page 87.
& WARNING
Front seat passengers who are unbelted, out of position or too
close to the airbag can be seriously injured or killed by the airbag
as it unfolds. To help reduce the risk of serious personal injury : .,
Vehicle care Do-it-yourself service Technical data

-Driving
Safely ------=-------=----------------
& WARNING
(continued)
• Passengers must always sit in an upright position and never
lean against or place any part of their body too close to the area
where the airbags are located.
• Passengers who are unbelted, out of position or too close to the
airbag can be seriously injured by an airbag as it unfolds with
great force in the blink of an eye .
• Always make sure that there are at least 10 inches (25 cm)
between the front passenger's breastbone and the instrument
panel.
• Always make sure that there are at least 4 inches (10 cm)
between the front passenger's knees and the lower part of the
instrument panel .
• Each passenger must always sit on a seat of their own and
properly fasten and wear the safety belt belonging to that seat .
• Before driving, always adjust the front passenger seat and
head restraint properly.
• Always keep your feet on the floor in front of the seat. Never
rest them on the seat, instrument panel, out of the window, etc .
The airbag system and safety belt will not be able to protect you properly and can even increase the risk of injury in a crash .
• Never drive with the backrest reclined or tilted far back! The
farther the backrests are tilted back, the greater the risk of injury
due to incorrect positioning of the safety belt and improper
seating position.
• Children must always ride in child seats:::::,
page 168. Special
precautions apply when installing a child seat on the front
passenger seat=:>
page 146. •
Proper adjustment of head restraints
Correctly adjusted head restraints are an important part
of your vehicle's occupant restraint system and can help
to reduce the risk of injuries in accident situations.
Fig. 120 Correctly
adjusted head restraint
viewed from the side
The head restraints must be correctly adjusted to achieve
the best protection.
-Adjust the head restraint so that the upper edge of the
restraint is level with the top of your head, but no lower
than eye level and so it is as close to the back of your
head as possible~ fig. 120.
Adjusting head restraints=:> page 92.
& WARNING
Driving without head restraints or with improperly adjusted head
restraints increases the risk of serious injuries in a collision. To
help reduce the risk of injury :
• Always drive with the head restraints in place and properly
adjusted .
• Every person in the vehicle must have a properly adjusted head
restraint. .,_

Because the occupants in th is vehicle are not using safety belts
~ page 138, fig. 122, they will keep moving at the same speed the
vehicle was moving just before the crash, un til some thing stops
them -here, the wall ~ page 138 , fig . 123.
The same principles apply to people sitting in a vehicle that is involved in a frontal collision. Even at city speeds of 20 to 30 mph
(30 to 50 km/h) , the forces acting on the body can reach one ton
(2,000 lbs, or 1,000 kg) or more . At higher speeds , th ese forces are
even greater.
People who do not use safety bel ts are also not attached to their
vehicle. In a frontal collision they will also keep moving forward at
the speed their vehicle was travelling just before the crash . Of
course, the laws of physics don't just apply to frontal collisions, they
determine what happens in all kinds of accidents and collisions. •
What happens to occupants not wearing
safety belts?
In crashes unbelted occupants cannot stop themselves
from flying forward and being injured or killed. Always
wear your safety belts!
Fig . 124 A driver not
wearing a safety belt is
violently thrown
forward
Unbelted occupants are not able to resist the tremendous forces of
impact by holding tight or bracing themselves . Without the benefit
of safety restraint systems, the unrestrained occupant will slam
Safety first
Safety belts
violently into the steering wheel, instrument panel, windshield, or
whatever else is in the way ~ fig. 124 . This impact with the vehicle
interior has all the energy they had just before the crash.
Never rely on airbags alone for protection. Even when they deploy,
airbags provide only additional protection. Airbags are not
supposed to deploy in all kinds o f accidents. Although your Audi is
equipped with airbags, all vehicle occupants, including the driver,
must wear safety belts correctly in order to minimi ze the risk of
severe injury or death in a crash.
Remember too , that airbags will deploy only once and that your
safety belts are always there to offer protection in those accidents
in which airbags are not supposed to deploy or when they have
already deployed. Unbelted occupants can also be thrown out of the
vehicle where even more severe or fatal injuries can occur. •
Safety belts protect
People think it's possible to use the hands to brace the
body in a minor collision. It's simply not true!
Fig. 125 Driver is prop·
erly restrained in a
sudden braking
maneuver .
Safety belts used properly can make a big difference. Safety belts
help to keep passengers in their seats, gradually reduce energy
levels applied to the body in an accident, and help prevent the
uncontrolled movement that can cause serious injuries. In addition ,
safety belts reduce the danger of being thrown out of the vehicle. .,.
Vehicle care
I I Technical data

• ....__S_ a_ fe_ t _y=-- b_ e_ lt_s ________________________________________________ _
Safety belts attach passengers to the car and give them the benefit
of being slowed down more gent ly o r "softly" through the "give" in
the safety belts, crush zones and other safety features engineered
into today's vehicles . By "absorbing" the kinetic ene rgy over
a
longer period of time, the safety belts make the forces on the body
more "tolerable" and less likely to cause injury.
Although these examp les are based on a frontal co llision, sa fety
belts can a lso substantially reduce the risk of injury in other kinds
of crashes . So, whether you're on a long trip or just go ing to the
corner store, always buckle up and make sure others do, too. Acci­
dent statistics show that vehic le occupants properly wea ring safety
belts have a lower risk of being injured and a much better chance of
surviv ing an accident . Properly using safety belts also great ly
increases the abi lity of the supplementa l airbags to do their job in a
collision. For this reason, wearing a safety belt is legally required in
most countries includ ing much of the United States and Canada.
Although your Audi is equipped with airbags, you sti ll have to wear
t he safety be lts prov ided. Fron t ai rbags, for example, are act iva ted
only in some frontal coll isions. The front airbags are not activated in
a ll frontal co llisions, in side and rear c ollisions, in rol l overs or i n
cases where there is not enough dece leration through impact to the
fron t of the vehicle . The same goes for the ot her airbag sys te m s in
your Audi . So, a lways wear your safety belt and make sure every ­
body in your vehicle is prope rly restrained! •
Important safety instructions about safety
belts
Safety belts must always be properly positioned a cross
the s trongest bones o f your b ody.
- Always w ear saf ety belts as i llus trat ed and d escrib ed in
th is cha pter .
- M ake sure that your safety b elt s ar e always read y for use
and a re not d am ag ed.
& WARNING
Not wearing safety belts or wearing them improperly increases
the risk of serious personal injury and death . Safety belts can work
only when used co rrectly .
• Alway s fa sten your safety belt s corre ctly before driving off and
make sure all pa ssengers are properly restrained .
• For maximum protection , safety belts mu st always be posi ­
tioned correctly on the body .
• Never strap more than one person , including sm all children ,
into any single safety belt .
• Never pla ce a safety belt ove r a child sitting on your lap .
• Always keep feet in the footwell in front of the seat while the
v ehicle is being dri ven .
• Never let any person ride with feet on the instrument panel or
s ticking out the window or on the seat .
• Never remove a safety belt while the vehicle i s moving. Doing
so will incre ase your risk of being i njured o r killed.
• Never wear belt s twi sted .
• Never wear belts over rigid or breakable objects in or on your
clothing , such a s eye glasses , pens , key s, etc ., as the se may cau se
i njury .
• Never wear the shoulder part of the belt under your arm or
otherwise out of position .
• Several layer s of heavy clothing may interfere with correct po si­
tioning of belts and reduce their effe ctiveness .
• Alway s keep belt bu ckles free of anyth ing th at may prevent the
buckle from latching securely.
• Never use comfort clips or devices that create slack in the
s houlder belt . H owever , special clips may be required for the
c orre ct use of some child re straint system s.
• Never allow safety belt s to become damaged by being caught
in door or seat ha rdware . .,_

___ A_ ir_ b_ a-g _ s_y _s_ t_ e_ m _________________________________________________ _
Airbag system
Important things to know
Importance of wearing safety belts and
sitting properly
Airbags are only supplemental restraints. For airbags to
do their job, occupants must always properly wear their
safety belts and be in a proper seating position.
For your safe ty a nd the safety of your passengers, before
driving o ff, a lways:
- Adjust the driver's seat and steering wheel properly
~ page 130,
-Adjust the front passenger's seat properly~ page 88,
- Wear safety belts properly~ page 140,
-Always properly use the proper child restraint to pro tect
children~
page 168 .
In a collision airbags must inflate within the blink of an eye and with
considerable force. The supplemental airbags can cause injuries if
the driver or the front seat passenger are not seated proper ly . There ­
fore in order to help the airbag to do its job, it is important, both as
a driver and as a passenger to sit properly at a ll times.
By keep ing room between your body and the steering wheel and the
front of the passenger compartment, the airbag can inflate fu lly and
comp letely and prov ide supplementa l protection in certain frontal
collisions =>
page 130, "Proper occupant seating positions". For
detai ls on the operation of the seat adjustment controls =>
page 88
and=> page 89.
It's especially important that chi ldren are proper ly restrained
=>
page 168.
There is a lot that the dr iver and the passenger can and must do to
help the individual safety features installed in your Audi work
together as a system.
P roper seating position is important so that the front airbag on the
driver side can do its job. I f you have a physical impairment or
condition that prevents you from sitting properly on the driver seat
with the safety belt properly fastened and reaching the pedals, o r if
you have concerns with regard to the function or operation of the
Advanced Airbag System, p lease contact your authorized Audi
dea ler or qua lif ied workshop, or call Audi Customer CARE at 1-800-
822 -2834 for possib le modifications to your vehicle.
When the airbag system deploys, a gas generator wi ll fill the
airbags, break open the padded covers, and inflate between the
steering wheel and the driver and be tween the instrument panel
and the front passenger. The airbags wil l deflate immediate ly after
deployment so that the front occupants can see through the wind ­
shield again without interruption.
A ll of this takes p lace in the b link of an eye, so fast that many people
don't even rea lize that the airbags have dep loyed . The airbags also
inflate with a great deal of force and nothing should be in their way
when they dep loy. Fron t airbags in combination wi th properly worn
safety belts slow down and limit the occupant's forward movement.
T ogether they he lp to prevent the driver and passenger from hitting
parts of the inside the vehic le while reducing the forces acting on
the occupant during the crash. In this way they he lp to reduce the
r isk of injury to the head and upper body in the crash. Airbags do not
protect the arms or the lower parts of the body .
Both front airbags w ill not inflate in al l fro ntal col lisions . The trig­
gering of the airbag system depends on the vehic le deceleration
r ate caused by the colli sion and registe red by the electronic contro l
unit. If this rate is below the reference value programmed into the
cont rol unit, the airbags w ill not be t riggered, even though the car
may be bad ly damaged as a result of the collision. Vehicle damage, .,,,.

________________________________________________ A_ i_ r _b _a_, g:::.,_ s..., y'- s_ t_ e_ m ___ !II
repair costs or even the lack of vehicle damage is not necessari ly an
indication of whether an airbag should inflate or not.
It is not possible to define a range of vehicle speeds that will cover
every possible kind and ang le of impact that wil l always trigger the
airbags, since the circumstances wil l vary considerab ly between
one collision and another. Important factors include, for example,
the nature (hard or so ft) of the object which the car hits, the angle
of impact, vehicle speed, etc. The front airbags wi ll also not inflate
in side or rear co llisions, or in roll -overs .
Al way s rem ember : Airbags wi ll deploy only once, and on ly in certain
kinds of coll isions . Your safety belts are always there to offer protec­
tion in those situat ions in wh ich airbags are not supposed to deploy,
or when they have already deployed; for example, when your vehic le
strikes or is struck by another a fter the first coll ision.
T his is just one of the reasons why an airbag is a supplementary
restraint and is not a substitute for a sa fety be lt. The airbag system
works most effectively when used with the safety be lts. Therefore ,
a lways prope rly wea r your safety belt s =>
page 137 .
& WARNING
Sitting too clo se to the steering wheel or in strument panel will
de crease the effect ivene ss of the airbags and will incr ease the risk
of personal injury in a collision.
• Never sit closer than 10 in ches (25 cm) to the steering wheel or
in strument panel.
• If you c annot sit more than 10 in ches (25 cm ) from the steering
wheel , inve stiga te whether adaptive equipment may be available
to held you reach the pedal s and in crease your se ating dist ance
from the steering wheel.
• If you are unrestra ined , leaning forward , sittin g side ways or out
of position in any way , your risk of injury i s much higher .
• You will also receive serious injur ies and could even be killed if
you are up again st the airba g or too clo se to it when it infl ates -
ev en with an Advanced Airbag .
Controls and equip­ ment Safety first
Vehicle operation
& WAR N IN G ( continued )
• To reduce the ri sk of injury when an airbag inflate s, alw ays
wear safety belt s prope rly~ page 141 , "S afet y belt s".
• If children are not properly re strained , they may be severely
injured or killed whe n an airbag inflates .
• Never let children ride unrestrained or improperly restrained in
the vehi cle . Adju st the front seats properly .
• Alway s sit a s far a s po ssible from the steering wheel or the
instrument panel~ page 1 30, "Proper occup ant se ati ng po si­
tions ".
• Alwa ys sit upright with yo ur b ack again st the ba ckrest of your
s eat.
• Never place your feet on the instrument p anel or on the seat .
Alway s keep both feet on the floor in front of the seat to help
prevent serious injurie s to the leg s and hips if the airbag infl ate s.
& WARNING
Airbags that have deployed in a crash must be repla ced.
• U se on ly original equipment airbags app roved by Audi and
installed by a trained technici an who has the n eces sary tool s and
diagno sti c equipment to properly repl ace an y airb ag i n your
vehicle and assure sy stem effectivenes s in a crash .
• Ne ver permit salvaged or re cy cled airb ag s to be in stalled in
your vehicle . •
Child restraints on the front seat -some
important things to know
- Be sure to read the important info rmation a nd head the
WARNINGS for important details about c hildren and
Advanced Airbags~ page
168 . .-,
Vehicle care Do-it-yourself service Technical data