warning light AUDI TT ROADSTER 2008 Workshop Manual

________________________________________________ D_r_iv _ i _n_ g~ S_ a_ fe_ ly __ lllll
- Make sure that all lights and signals are operating
correctly.
- Make sure that the tire pressure is correct.
- Make sure that all windows are clean and afford good
visibility to the outside.
- Secure all luggage and other items carefully =>
page 95.
-Make sure that nothing can interfere with the pedals.
- Adjust front seat, head restraint and mirrors correctly for
your height.
- Instruct passengers to adjust the head restraints
according to their height.
- Make sure to use the right child restraint correctly to
protect children =>
page 168, "Child Safety".
- Sit properly in your seat and make sure that your passen­
gers do the same=>
page 87, "General recommenda­
tions".
- Fasten your safety belt and wear it properly. Also instruct
your passengers to fasten their safety belts properly
=>
page 137. •
What impairs driving safety?
Safe driving is directly related to the condition of the
vehicle, the driver as well as the driver's ability to concen­
trate on the road without being distracted.
The driver is responsible for the safety of the vehicle and all
of its occupants. If your ability to drive is impaired, safety risks for everybody in the vehicle increase and you also
Controls and equip­ ment Safety first Vehicle operation
become a
hazard to everyone else on the road =>&, .There ­
fore:
- Do not let yourself be distracted by passengers or by
using a cellular telephone.
- NEVER drive when your driving ability is impaired (by
medications, alcohol, drugs, etc .).
- Observe all traffic laws, rules of the road and speed limits
and plain common sense.
- ALWAYS adjust your speed to road, traffic and weather
conditions.
- Take frequent breaks on long trips. Do not drive for more
than two hours at a stretch.
- Do NOT drive when you are tired, under pressure or when
you are stressed.
in. WARNING
Impaired driving safety increases the risk of serious personal
injury and death whenever a vehicle is being used. •
Vehicle care Do-it-yourself service Technical data

___ D_ ri_v _i_n ..;::g:a.- S_ a_ f _e___, ly'---------------------------------------------------
Proper occupant seating positi ·ons
Proper seating position for the driver
The proper driver seating position is important for safe,
relaxed driving.
"' N
;
Fig. 118 The correct
distance between
driver and steering
wheel
Fig . 119 Correct head
restraint position for
driver
For your own safety and to reduce the risk of injury in the
event of an accident, we recommend that you adjust the
driver's seat to the following position:
- Adjust the driver's seat so that you can easily push the
pedals all the way to the floor while keeping your knee(s)
slightly bent=:>& . - Adjust the angle of the seatback so that it is in an upright
position so that your back comes in full contact with it
when you drive.
- Adjust the steering wheel so that there is a distance of at
least 10 inches (25 cm) between the steering wheel and
your breast bone=:> fig. 118. If not possible, see your
authorized Audi dealership about adaptive equipment.
- Adjust the steering wheel so that the steering wheel and
airbag cover points at your chest and not at your face.
- Grasp the top of the steering wheel with your elbow(s)
slightly bent.
- Adjust the head restraint so that the upper edge is as even with the top of your head as possible but no lower
than eye level and so that it is as close to the back of your
head as possible =:> fig . 119 .
- Fasten and wear safety belts correctly=:>
page 141.
- Always keep both feet in the footwell so that you are in
control of the vehicle at all times.
For detailed information on how to adjust the driver's seat, see
=> page 89 .
& WARNING
Drivers who are unbelted, out of position or too close to the airbag
can be seriously injured by an airbag as it deploys. To help reduce
the risk of serious personal injury:
• Always adjust the driver's seat and the steering wheel so that
there are at least 10 inches
125 cm) between your breastbone and
the steering wheel. ..

Safety belts -----------------=-------
Safety belts
General notes
Always wear safety belts!
Wearing safety belts correctly saves lives!
This chapter explains why safety belts are necessary, how
they work and how to adjust and wear them correctly.
- Read all the information that follows and heed all of the
instruct ions and WARNINGS.
& WARNING
Not wearing safety belts or wearing them improperly increases
the risk of serious personal injury and death.
• Safety belts are the single most effective means available to
reduce the risk of serious injury and death in automobile acci­
dents . For your protection and that of your passengers , always
wear the safety belts properly when the vehicle is moving.
• Pregnant women, injured, or physically impaired persons must
also use safety belts . Like all vehicle occupants, they are more
likely to be seriously injured if they do not wear safety belts . The
best way to protect a fetus is to protect the mother -throughout
the entire pregnancy. •
Number of seats
Your Audi TI Roadster has two seating positions. Each seating posi ­
tion has a safety belt.
Controls and equip­ ment Safety first
Vehicle operation
& WARNING
Not wearing safety belts or wearing them improperly increases
the risk of serious personal injury and death .
• Never strap more than one person, including small children,
into any belt. It is especially dangerous to place a safety belt over
a child sitting on your lap.
• Never let more people ride in the vehicle than there are safety
belts available.
• Be sure everyone riding in the vehicle is properly restrained
with a separate safety belt or child restraint. •
Safety belt warning light .4
Your vehicle has a warning system for the driver and front
seat passenger to remind you about the importance of
buck/ i ng-u p.
Before driving off, always:
Fig . 121 Safety belt
warning light in the
instrument cluster -
enlarged
- Fasten your safety belt and make sure you wear it prop-
erly.
1J,-
Vehicle care Do-it-yourself service Technical data

___ S_a_ f_ e_ t-= y_ b_e_ l_ t _s _______________________________________________ _
- Make sure that your passengers also b uckle up and prop­
erly wea r th eir sa fety belts.
Protect children wit h a child restraint system appropriate
for the size and age.
The warning light i in the instrument cluster lights up when the
ignition is switched on as a reminder to fasten the safety belts. In
addition , you will hear a warning tone.
After the ignition is switched on, the warning light in the instrument cluster will a lways come on for about 6 seconds and if the driver has
not fastened the safety belt, a warning tone will also sound for
about 6 seconds . As soon as the driver has fastened the safety belt,
the warning tone will stop and the warning light will go out .
If the driver or front seat passenger have not buckled -up within
about 10 seconds after the warning tone has stopped and the
vehicle is moving faster than about 15 mph, the warning tone will
sound again for about 6 seconds and then stop for 24 seconds and
then repeat this reminder sequence for a maximum of 2 minutes. At
speeds be low 5 mph, the warning tone will not sound.
Fa sten your safe ty belt and m ake su re that your p assengers also
properl y put on th eir s afet y belts .
& WARNING
• Safety belt s are the single mo st effective mean s available to
reduce th e risk of ser ious injur y and death in a utomobile acci­
dent s. For your prote ction and th at of your pas senger s, alwa ys
c orre ctl y we ar safety belt s when t he vehicle is moving .
• Failure t o pay att ention to th e warning light that co me on,
c ould lead to per sonal injury .•
Why safety belts?
Frontal co11isions and the law of physics
Front al crashes create very strong forces for pe ople riding
in vehicles.
F ig. 122 U nbel ted
o cc up ants i n a ve hicle
he ading for a wa ll
Fi g. 123 T he vehi cle
c ras hes in to t he wa ll.
The physical principles are simple. Both the vehicle and the passen­
gers possess energy which varies with vehicle speed and body
we ight . Engineers cal l this energy "kinetic energy ."
T he higher the speed of the vehicle and the greater the vehic le's
we ight, the more energy that has to be "absorbed" in the crash .
Vehicle speed is the most significan t factor. If the speed doubles
from 15 to 30 mph (25 to 50 km/h), the energy increases 4 times! .,

& WARNING !continue d)
• Torn or fr ayed safety b elt s can tear and damaged b elt hard ­
ware can bre ak in an ac cident. Inspect belt s regularly . If webb ing ,
bind ings , buckles , or retra ctors are d am aged , have belts repla ced
by an authori zed Audi dealer or qualified work shop.
• Safety belt s th at have been worn and lo aded in an accident
mu st be repl aced with the correc t replacement saf ety belt by an
autho riz ed Audi de aler o r qualified work shop . Repla cement may
be nece ssary even if d amage cannot b e clea rly seen. Anchorage s
that wer e loaded must also be inspe cted .
• Never rem ove, modif y, dis ass em ble , or tr y to r epa ir the safety
belts your self .
• Alway s keep the belt s cle an. Dirty belt s may not work properly
and can impair the fun ction of the inertia reel=>
page 212 , "Safety
belts ".•
Safety belts
Fastening safety belts
Seat first -everybody buckle up!
Safety first
Fig . 126 Belt bu ckle
a nd ton gue on th e
driv er's s eat
Safety b elts
To provid e ma ximum protec tion, sa fety belts m ust always
be pos itioned c orrect ly on the wear er's bod y.
- Adjust the front seat and head restraint properly
=> page 87, "General recommend atio ns".
- Hold the belt by the tongue and pull it evenly across the
c h es t and pelvis=> &.
- Inse rt the tongue into the correct buckle of your seat
unti l you hea r it latch securely => fig. 126 .
- Pull on t he b elt t o mak e sur e tha t it is se curely l atc hed in
t h e buckle .
Automatic safety belt retra cto rs
Every safety belt is equipped with an automatic be lt retractor on the
shoulder belt . This feature locks the belt when the belt is pulled out
f ast, during hard braking and in an accident. The be lt may a lso lock
when you drive up or down a steep hill or through a sharp curve.
During norma l d riving the belt lets you move free ly .
Safety be lt pretensioners
The safety belts are equipped with a be lt pretensioner that helps to
tighten the safety belt and remove slack when the pretensioner is
activated. T he funct io n of the pretensioner is mon itored by a
warning light =>
page 19, "Airbag system
t!! (USA models)/!,~ · (Canada models)".
Swit chable locking featur e
Every safety belt except the one on the driver seat is equipped with
a switchable locking feature that
must be used when the safety be lt
is used to attach a chi ld seat. Be sure to read the important info rma-
tion about this feature =>
page 177. ._
Vehicle care I I Technical data

__________________________________________________ A_ i_ r _b _a...; g::- s_ y=--- s_t _e _m __ lllll
& WARNING
A child in a rearward-facing child safety seat installed on the front
passenger seat will be seriously injured and can be killed if the
front airbag inflates -even with an Advanced Airbag System .
• The inflating airbag will hit the child safety seat or infant
carrier with great force and will smash the child safety seat and
child against the backrest, door or roof. • If you must install a rearward facing child safety seat on the
front passenger seat because of exceptional circumstances and
the PASSENGER AIR BAG OFF light does not come on and stay on, immediately install the rear -facing child safety seat in a rear
seating position and have the airbag system inspected by your
Audi dealer .
• Forward-facing child safety seats installed on the front
passenger's seat may interfere with the deployment of the airbag
and cause serious personal injury to the child.
& WARNING
If , in exceptional circumstances, you must install a forward-facing
child restraint on the front passenger's seat:
• Always make sure the forward-facing seat has been designed
and certified by its manufacturer for use on a front seat with a
passenger front and side airbag .
• Never put the forward -facing child restraint up against or very
near the instrument panel.
• Always move the passenger seat into its rearmost position in
the seat's fore and aft adjustment range, as far away from the
airbag as possible before installing the forward -facing child
restraint. The backrest must be adjusted to an upright position .
• Make sure that the PASSENGER AIR BAG OFF light comes on
and stays on all the time whenever the ignition is switched on .
Controls and equip­ ment Safety first
Vehicle operation
& WARNING
To reduce the risk of serious injury , make sure that the PASSENGER
AIR BAG OFF light will be displayed whenever a child restraint is installed on the front passenger seat and the ignition is switched
on .
• If the PASSENGER AIR BAG OFF light does not stay on , perform
the checks described=>
page 157, "Monitoring the Advanced
Airbag System ".
• Take the child restraint off the front passenger seat and install
it properly at one of the rear seat positions if the PASSENGER AIR
BAG OFF light does not stay on.
• Have the airbag system inspected by your Audi dealer immedi­
ately. • Always carefully follow instructions from child restraint manu­
facturers when installing child restraints .
& WARNING
If, in exceptional circumstances, you must install a forward or
rearward-facing child restraint on the front passenger's seat :
• Improper installation of child restraints can reduce their effec­
tiveness or even prevent them from providing any protection.
• An improperly installed child restraint can interfere with the
airbag as it deploys and seriously injure or even kill the child -
even with an Advanced Airbag System .
• Always carefully follow the manufacturer's instructions
provided with the child safety seat or carrier .
• Never place additional items on the seat that can increase the
total weight registered by the weight -sensing mat and can cause
injury in a crash . •
Vehicle care Do-it-yourself service Technical data

-Airbag system ----------------
•
a sma ll ch ild th at is heavi er than a typ ica l 1 ye ar-o ld child is on
th e front p assenger s eat (regar dle ss of whet her the child is in on e
of th e child saf ety seats listed~
page 1 70),
• a chil d w ho h as outgrow n chi ld re str ain ts is on the fr ont
passen ger seat.
I f the fr ont passe nge r ai rbag is tu rned off, the
PASSENGER AIR BAG
OFF
light in the cent er o f the instrum ent pan el wi ll come on and stay
o n.
The front airb ag o n the passenger si de may
not depl oy (the
PASSENGER AIR BAG OFF light does not illuminate and stay l it) if:
• a small ad ult or t eenage r is on the fr ont passenger sea t
• a passenger who is not sitting upright with their bac k against a
n o n-re clined back res t w it h th e ir fe et on th e ve hicle flo or in fr ont of
th e se at is on th e front pass enger s eat.
I f the front pas senger ai rbag depl oys, the Federa l Standard requ ires
the airb ag to me et the "low r is k" dep loy ment criter ia to h elp r educe
th e risk of in jury t hroug h in teraction w ith the a irbag. "Low risk"
de ploy ment occu rs in those c ras hes that ta ke p lace a t low er d ecel­
erations as defined in the electron ic contro l unit~
page 157.
Always remember:
P lease be sur e to r ead the i mport ant info rm ation
in th e sections that follow and b e sur e to heed all of the WARN INGS.
& WARNING
To reduce the risk of injury when an airbag inflates , always wear
safety belts properly.
• If you are unrestrained , leaning forward, sitting sideways or out
of position in any way, your risk of injury is much higher.
• You will also receive serious injur ies and could even be killed if
you are up against the airbag or too close to it when it inflates ·
even with an Advanced Airbag~
page 146 .
& WARNING
A child in a rearward-facing child safety seat installed on the front
passenger seat will be seriously injured and can be killed if the
front airbag inflates -even with an Advanced Airbag System .
• Although the Advanced Airbag System in your vehicle is
designed to turn off the front airbag when a rearward -facing child
restraint has been installed on the front passenger seat , nobody
can absolutely guarantee that deployment is impossible in all
conceivable situations that may happen during the useful life of
your vehicle.
• The inflating airbag will hit the child safety seat or infant
carrier with great force and will smash the child safety seat and
child against the backrest, door, or roof .
• If you must install a rearward facing child safety seat on the
front passenger seat because of exceptional circumstances and
the PASSENGER AIR BAG OFF light does not come on and stay on ,
immediately install the rear-facing child safety seat in a rear
seating position and have the airbag system inspected by your
Audi dealer .
& WARNING
If, in exceptional circumstances , you must install a forward -facing
child restraint on the front passenger's seat :
• Always make sure the forward -facing seat has been designed
and certified by its manufacturer for use on a front seat with a
passenger front and side airbag .
• Never put the forward-facing child restraint up against or very
near the instrument panel.
• Always move the passenger seat into its rearmost position in
the seat's fore and aft adjustment range , as far away from the
airbag as poss ible , before installing the forward-facing child
restraint. The backrest must be adjusted to an upright position. ..,.

Airbag syst em -----------------=~-
& WARN ING (co ntinued)
• Make s ure th at the PA SSENGER AIR BAG OFF light come s on
a nd sta y s o n all the tim e whene ver the ign ition i s sw itched on . •
Advanced Airbag System components
The front passenger seat in your vehicle has a lot of very important
parts of the Advanced Airbag System in it. These parts inc lude the
weight -sensing mat, sensors, wiring, brackets, and more. The func ­
tion of the system in the front passenger seat is checked by the e lec ­
tronic contro l unit when the igni tion is on. The control unit monitors
the Advanced Airbag System and turns the airbag indicator light on
when a malfunction in the system components is detected . The
function of the airbag indicator light is described in greater detail
below. Because the front passenger seat contains important parts
of the Advanced Airbag System, you must take care to prevent it
from being damaged. Damage to the seat may prevent the
Advanced Airbag for the front passenger seat from doing its job in a crash.
T he front A dvance d Airb ag Syst em con sis ts of th e
following:
• Crash sensors in the front of the vehicle that measure vehicle
acceleration/dece leration to prov ide information to the Advanced
Airbag System about the severity of the crash .
• An electronic control unit, with integrated crash sensors for front
and side impacts. The control unit "decides" whether to fire the
front airbags based on the information received from the crash sensors. The contro l unit a lso "decides" whether the safety belt
pretensioners should be activated .
• A dual -stage Advanced Airbag with gas generator for the driver
inside the steering wheel hub .
• A dual -stage Advanced Airbag and gas generator inside the
instrument pane l for the front passenger .
Controls and equip­
ment Safety first Vehicle operation
•
A weight -sensing mat under the upholstery padding of the front
passenger sea t cushion that measures the total weight on the seat .
The information registered is sent continuously to the e lectronic
control unit to regula te dep loyment of the front Advanced Airbag on
the passenger side.
• An airbag monitoring syste m and indica tor l ight in the instru ­
ment cluster=>
page 157.
• The PASSENGER AIR BAG OFF light comes on and stays on in the
center of the instrument panel=>
page 157, fig. 133 and tells you
when the front Advanced Airbag on the passenger side has been
turned off .
• A sensor be low the safety belt latch for the front seat passenger
to measure the tension on the safety belt . The tension on the safety
belt and the weight registered by the weight -se nsing mat help the
control unit "decide" whether the front airbag for the front
passenger sea t should be turned off o r not =>
page 147, "Child
restraints on the front seat -some important things to know" .
• A sensor in the safety belt latch for the dr iver and for the front
seat passenger that senses whether that safety be lt is latched or not
and t ransmits this information to the electronic control unit.
& WARNING
Damage to the front pa ssenger seat can prevent the front airbag
fr om worki ng properly .
• Improper repair or di sa ssembly of the front pa ssenger and
dri ver seat will prevent th e Adv an ced Airbag Sy stem from func­
tioning properly.
• Rep air s to the front p assenger seat must b e perfor med by qu al­
ified and properly tra ined work shop per sonnel .
• Never remo ve the fro nt pa ssenger or dr iver se at from the
v ehi cle.
• Nev er remove th e uphol stery from the fron t pass eng er seat.
• Never disas semble or r emove p arts from the seat or di sconne ct
wires from it . ..
Vehicle care Do-it-yourself service Technical data

& WARNING
To reduce the risk of injury when an airbag inflates, always wear
safety belts properly.
• If you are unrestrained , leaning forward , sitting sideways or out
of position in any way, your risk of injury is much higher.
• You will also receive serious injuries and could even be killed if
you are up against the airbag or too close to it when it inflates ·
even with an Advanced Airbag~
page 146. •
More important things to know about front
airbags
Fig . 132 Inflate d front
airbags
Safety belts are important to help keep front seat occupants in the
proper seated posit ion so that airbags can unfold properly and
provide supp lemental protection in a frontal collision.
The front airbags are designed to provide additional protection for
the chest and face of the driver and the front seat passenger when :
• safety belts are worn properly,
• the seats have been positioned so that the occupant is properly
seated as far as possible from the air bag,
• and the head restraints have been properly adjusted .
Safety first
Airbag system
Because airbags inflate in the blink of an eye with great force, things
you have on your lap or have placed on the seat could become
dangerous projectiles, and be pushed into you if the airbag inflates .
When an airbag deploys, fine dust is released . This is norma l and is
not caused by a fire in the vehicle. This dust is made up mostly of a
powder used to lubricate the airbags as they deploy. It could irritate
skin.
It is important to remember that while the supplemental airbag
system is designed to reduce the likel ihood of serious injuries, other
injuries, for example swelling, bruising and minor abrasions , can
also happen when airbags inflate. Airbags do not protect the arms
or the lower parts of the body. Front airbags only supplement the
three point safety be lts in some frontal collisions in which the
vehic le deceleration is high enough to dep loy the a irbags.
Front airbags will not deploy:
• if the ignition is switched off when a crash occurs,
• in side collisions,
• in rear -end collisions,
• in rollovers,
• when the crash deceleration measured by the airbag system is
less than the minimum threshold needed for airbag deployment as
registered by the electronic control unit.
The front passenger airbag will also not deploy:
• when the front passenger seat is not occupied,
• when the weight on the front passenger seat as sensed by the
Advanced Airbag System indicates that the front airbag on the
passenger side has to be turned off by the electronic control unit
(the
PASSENGER AIR BAG OFF light comes on and stays onl.
& WARNING
Sitting in the wrong position can increase the risk of serious injury
in cras hes. .,,_
Vehicle care
I I irechnical data

-Airbag system ----=---'---------------------------------------------
& WARNING (continued)
• To reduce the risk of injury when the airbags inflate, the driver
and passengers must always sit in an upright position, must not
lean against or place any part of their body too close to the area
where the airbags are located .
• Occupants 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~ page
147.
& WARNING
A child in a rearward -facing child safety seat installed on the front
passenger seat will be seriously injured and can be killed if the
front airbag inflates -even with an Advanced Airbag System .
• The inflating airbag will hit the child safety seat or infant
carrier with great force and will smash the child safety seat and
child against the backrest, center arm rest, door or roof.
• If you must install a rearward facing child safety seat on the
front passenger seat because of exceptional circumstances and
the PASSENGER AIR BAG OFF light does not come on and stay on ,
immediately install the rear -facing child safety seat in a rear
seating position and have the airbag system inspected by your
Audi dealer .
& WARNING
Objects between you and the airbag will increase the risk of injury
in a crash by interfering with the way the airbag unfolds or by
being pushed into you as the airbag inflates .
• Never hold things in your hands or on your lap when the vehicle
is in use .
• Never transport items on or in the area of the front passenger
seat . Objects could move into the area of the front airbags during
& WARNING (continued)
braking or other sudden maneuver and become dangerous projec­
tiles that can cause serious personal injury if the airbags inflate.
• Never place or attach accessories or other objects (such as cup
holders, telephone brackets, large , heavy or bulky objects) on the
doors , over or near the area marked "AIRBAG" on the steering
wheel, instrument panel , seat backrests or between those areas
and yourself . These objects could cause injury in a crash, espe­
cially when the airbags inflate .
• Never recline the front passenger's seat to transport objects .
Items can also move into the area of the side airbag or the front
airbag during braking or in a sudden maneuver . Objects near the
airbags can become projectiles and cause injury, particularly when
the seat is reclined.
& WARNING
The fine dust created when airbags deploy can cause breathing
problems for people with a history of asthma or other breathing
conditions.
• To reduce the risk of breathing problems , those with asthma or
other respiratory conditions should get fresh air right away by
getting out of the vehicle or opening windows or doors .
• If you are in a collision in which airbags deploy, wash your
hands and face with mild soap and water before eating .
• Be careful not to get the dust into your eyes, or into any cuts or
scratches .
• If the residue should get into your eyes , flush them with
water. •