ECU AUDI TT ROADSTER 2008 User Guide

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Driver and passenger side footwell
Important safety instructions
& WARNING
Always make sure that the knee airbag can inflate without inter­
ference. Objects between yourself and the airbag can increase the risk of injury in an accident by interfering with the way the airbag
deploys or by being pushed into you as the airbag deploys.
• No persons (children) or animals should ride in the footwell in
front of the passenger seat. If the airbag deploys, this can result in
serious or fatal injuries.
• No objects of any kind should be carried in the footwell area in
front of the driver's or passenger's seat . Bulky objects (shopping
bags, for example) can hamper or prevent proper deployment of
the airbag. Small objects can be thrown through the vehicle if the
airbag deploys and injure you or your passengers. •
Pedal area
Pedals
The pedals must always be free to move and must never
be interfered with by a floor mat or any other object.
Make sure that all pedals move freely without interference and that
nothing prevents them from returning to their original positions.
Only use floor mats that leave the pedal area free and can be
secured with floor mat fasteners.
If a brake circuit fails, increased brake pedal travel is required to
bring the vehicle to a full stop.
& WARNING
Pedals that cannot move freely can cause loss of vehicle control
and increase the risk of serious injury.
• Never place any objects in the driver's footwell . An object could
get into the pedal area and interfere with pedal function. In case
of sudden braking or an accident, you would not be able to brake
or accelerate!
• Always make sure that nothing can fall or move into the
driver's footwell. •
Floor mats on the driver side
Always use floor mats that can be securely attached to
the floor mat fasteners and do not interfere with the free
movement of the pedals.
Make sure that the floor mats are properly secured and
cannot move and interfere with the pedals ::::>& .
Use only floor mats that leave the pedal area unobstructed and that
are firmly secured so that they cannot slip out of position. You can
obtain suitable floor mats from your authorized Audi Dealer.
Floor mat fasteners are installed in your Audi.
Floor mats used in your vehicle must be attached to these fasteners.
Properly securing the floor mats will prevent them from sliding into
positions that could interfere with the pedals or impair safe opera­
tion of your vehicle in other ways.
& WARNING
Pedals that cannot move freely can result in a loss of vehicle
control and increase the risk of serious personal injury.
• Always make sure that floor mats are properly secured.

Driving Safely ---------------=------------'-
& WARNING (continued)
• Never place or install floor mats or other floor coverings in the
vehicle that cannot be properly secured in place to prevent them
from slipping and interfering with the pedals or the ability to
control the vehicle .
• Never place or install floor mats or other floor coverings on top
of already installed floor mats. Additional floor mats and other
coverings will reduce the size of the pedal area and interfere with
the pedals.
• Always properly reinstall and secure floor mats that have been
taken out for cleaning.
• Always make sure that objects cannot fall into the driver foot­
well while the vehicle is moving. Objects can become trapped
under the brake pedal and accelerator pedal causing a loss of
vehicle control . •
Stovving luggage
Loading the luggage compartment
All luggage and other objects must be properly stowed
and secured in the luggage compartment.
Loose items in the luggage compartment can shift
suddenly, changing vehicle handling characteristics. Loose items can also increase the risk of serious personal injury in
a sudden vehicle maneuver or in a collision.
- Distribute the load evenly in the lugg age compartment.
- Always place and properly secure heavy items in the
luggage compartment as far forward as possible.
Controls and equip­
ment Safety first
Vehicle operation
& WARNING
Improperly stored luggage or other items can fly through the
vehicle causing serious personal injury in the event of hard braking or an accident. To help reduce the risk of serious personal injury:
• Always put objects, for example, luggage or other heavy items
in the luggage compartment .
• Always secure objects in the luggage compartment using the
tie-down eyelets and suitable straps.
& WARNING
Heavy loads will influence the way your vehicle handles. To help
reduce the risk of a loss of control leading to serious personal
injury :
• Always keep in mind when transporting heavy objects, that a
change in the center of gravity can also cause changes in vehicle
handling:
-Always distribute the load as evenly as possible.
- Place heavy objects as far forward in the luggage compart-
ment as possible.
• Never exceed the Gross Axle Weight Rating or the Gross
Vehicle Weight Rating specified on the safety compliance sticker on the left door jamb . Exceeding permissible weight standards
can cause the vehicle to slide and handle differently.
• Please observe information on safe driving=:>
page 128.
& WARNING
To help prevent poisonous exhaust gas from being drawn into the
vehicle, always keep the rear lid closed while driving .
• Never transport objects larger than those fitting completely
into the luggage area because the rear lid cannot be fully closed.
9J),
Vehicle care Do-it-yourself service Technical data

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& WARNING (continued)
• If you absolutely must drive with the rear lid open, observe the
following notes to reduce the risk of poisoning:
-Close all windows,
- Close the folding top,
- Open all air outlets in the instrument panel,
- Switch off the air recirculation,
- Set the fresh air fan to the highest speed.
& WARNING
Always make sure that the doors, all windows, the folding top and
the rear lid are securely closed and locked to reduce the risk of
injury when the vehicle is not being used.
• After closing the rear lid, always make sure that it is properly
closed and locked .
• Never leave your vehicle unattended especially with the rear lid
left open. A child could crawl into the vehicle through the luggage
compartment and close the rear lid becoming trapped and unable
to get out. Being trapped in a vehicle can lead to serious personal
injury.
• Never let children play in or around the vehicle.
• Never let passengers ride in the luggage compartment. Vehicle
occupants must always be properly restrained in one of the
vehicle's seating positions.
[ i) Tips
• Air circulation helps to reduce window fogging. Stale air escapes
to the outside through vents in the trim panel, on the left side of the
luggage compartment. Be sure to keep these slots free and open.
• The tire pressure must correspond to the load -see the tire pres ­
sure sticker on driver 's side B-pillar. •
Reporting safety defects
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 Adminis­
tration (NHTSA) in addition to notifying Audi of
America, Inc. If NHTSA receives similar complaints, it may open an investigation, and
if it finds that a safety defect exists in a group
of vehicles, it may order a recall and remedy
campaign. However, NHTSA cannot become involved 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 1-888-327-4236 (TTY: 1-800-424-9153);
go to
http://www.safercar.gov;
or write to: Administrator, NHTSA, 400 Seventh Street, SW., Washington, DC 20590.
You can also obtain other information about motor vehicle safety from
http://www.safercar.gov. •

• ....__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 . .,_

& 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

___ S_a_ f_ e_ t-= y_ b_e_ l_ t _s _______________________________________________ _
& WARNING
Improperly positioned safety belts can cause serious injury in an
accident =:> page
142, "Safety belt position".
• Safety belts offer optimum protection only when the seat back
is upright and belts are properly positioned on the body.
• Never attach the safety belt to the buckle for another seat.
Attaching the belt to the wrong buckle will reduce safety belt effectiveness and can cause serious personal injury.
• A passenger who is not properly restrained can be seriously
injured by the safety belt itself when it moves from the stronger
parts of the body into critical areas like the abdomen.
• Always lock the convertible locking retractor when you are
securing a child seat in the vehicle=:> page
179. •
Safety belt position
Correct belt position is the key to getting maximum
protection from safety belts.
Fig. 127 Head restraint
and safety belt posi­
tion as seen from the side
Use the height adjustment to change the position of the shoulder
straps of the front seat safety belts.
& WARNING
Improperly positioned safety belts can cause serious personal
injury in an accident.
• The shoulder belt portion of the safety belt must be positioned
over the middle of the occupant's shoulder and never across the
neck or throat .
• The safety belt must lie flat and snug on the occupant's upper
body
=> fig. 127 . Pull on the belt to tighten if necessary.
• The lap belt portion of the safety belt must be positioned as
low as possible across pelvis and never over the abdomen. Make
sure the belt lies flat and snug => fig. 127. Pull on the belt to
tighten if necessary.
• A loose -fitting safety belt can cause serious injuries by shifting
its position on your body from the strong bones to more vulner­
able, soft tissue and cause serious injury.
• Always read and heed all WARNINGS and other important infor­
mation => page
140. •

Pregnant women must also be properly
restrained The best way to protect the fetus is to make sure that
expectant mothers always wear safety belts correctly -
throughout the pregnancy.
Fig . 128 Safety belt
position during preg­
nancy
To provide maximum protection, safety belts must always
be positioned correctly on the wearer's body=>
page 142.
-Adjust the front seat and head restraint correctly
=> page 87, "General recommendations".
- Make sure the seat back of the rear seat bench is in
upright position and securely latched in place before
using the belt.
- Hold the belt by the tongue and pull it evenly across the
chest and pelvis::::,
page 143, fig. 128, => &.
- Insert the tongue into the correct buckle of your seat
until you hear it latch securely =>
page 141, fig. 126.
- Pull on the belt to make sure that it is securely latched in
the buckle.
Safety first
Safety belts
& WARNING
Improperly positioned safety belts can cause serious personal
injury in an accident.
• Expectant mothers must always wear the lap portion of the
safety belt as low as possible across the pelvis and below the
rounding of the abdomen.
• Always read and heed all WARNINGS and other important infor ­
mation ~
& in "Fastening safety belts" on page 141. •
Unfastening safety belts
Unbuckle the safety belt with the red release button only
after the vehicle has stopped.
Fig . 129 Releasing the
tongue from the buckle
- Push the red release button on the buckle=> fig. 129. The
belt tongue will spring out of the buckle =>
&.
- Let the belt wind up on the retractor as you guide the belt
tongue to its stowed position.
& WARNING
Never unfasten safety belt while the vehicle is moving . Doing so
will increase your risk of being injured or killed .•
Vehicle care
I I irechnical data

& WARNING !continued)
• If the PASSENGER AIR BAG OFF light does not come on and stay
on whenever the ignition is switched on 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. Have the airbag system inspected immediately by your Audi
dealer.
• Always read and heed all WARNINGS whenever using a child
restrained in a vehicle is being used=>
page 137, "Safety belts",
=>
page 146, "Airbag system" and=> page 168, "Important things
to know". •
Safety belts and older children
Properly worn three point lap and shoulder belt can help
protect children weighing more than 80 lbs. (36 kg) and
who are at least 4 ft. 9 in. tall.
I
Fig. 141 Child taller
than 4 ft. 9 in. properly
restrained on the front
seat
Children who weigh more than about 80 lbs (36 kg) and are at least
4 ft . 9 in . tall can generally use the vehicle's three point lap and
shoulder belts.
Safety first
Child Safety
& WARNING
Using wrong child restraints or improperly installed child
restraints can cause serious personal injury or death in a crash.
• Failure to properly route safety belts over a child's body will
cause severe injuries in a crash. The lap belt portion of the three
point belt must always pass as low as possible across the pelvis,
never over the stomach or abdomen.
• An improperly worn safety belt will not provide the best protec­
tion in a crash and may cause serious personal injury. Always
make sure that children and other vehicle occupants properly
wear available restraint systems. Carefully follow the instructions provided by the manufacturers of child restraints. •
Installing a child safety seat
Securing a child safety seat using a safety
belt
Safety belts for the front passenger can be locked with the
convertible locking retractor to properly secure child
safety seats.
The safety belts emergency locking retractors for the front
passenger's seat safety belt have a convertible locking retractor for
child restraints. The safety belt must be locked so that belt webbing
cannot unreel. The retractor can be activated to lock the safety belt
and prevent the safety belt webbing from loosening up during
normal driving. A child safety seat can only be properly installed
when the safety belt is locked so that the child and child safety seat
will stay in place.
Always remember: Even though your vehicle is equipped with an
Advanced Airbag system, a child should always ride in the seat properly restrained for its age and size. .,_
Vehicle care
I I irechnical data

_______________________________________________ C_h _ i_ld _ S_ a_ f_ e_ t..,:c y __ __
& WARNING
Rearward-facing child restraints:
• 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.
• Always be especially careful if you must install a rearward
facing child safety seat on the front passenger seat in exceptional
circumstances.
• Make sure that the PASSENGER AIR BAG OFF light comes on
and stays on all the time whenever the ignition is switched on.
• Never install a rearward facing child safety seat on the front
passenger seat unless the PASSENGER AIR BAG OFF light comes
on and stays on. If the PASSENGER AIR BAG OFF light does not
come on and stay on have the airbag system inspected immedi ­
ately by your Audi dealer. •
Activating the convertible locking retractor
Use the convertible locking retractor to secure a child
restraint.
Always heed the child safety seat manufacturer's instruc ­
tions when installing a child restraint in your vehicle . To
activate the convertible locking retractor:
- Place the child restraint on a seat .
- Slowly pull the belt
all the way out.
- Route it around or through the child restraint belt path
~& -
Controls and equip­
ment Safety first
Vehicle operation
-Push the child safety seat down with your full weight to
get the safety belt really tight.
- Insert the belt tongue into the buckle for that seating
position .
- Guide the safety belt back into the retractor unt il the belt
lies flat and snug on the child safety seat.
- You should hear a "clicking" noise as the belt winds back
into the inertia reel. Test the convertible locking retractor
by pul ling on the belt. You should no longer be able to
pull the belt out of the retractor. The convertible locking
retractor is now activated .
- Make sure that the red release button is facing away from
the child restraint so that it can be unbuckled quickly.
- Pull on the belt to make sure the safety belt is properly
tight and fastened so that the seat cannot move forward
or sideways more than one inch (2.5 cm).
& WARNING
Using the wrong child restraint or an improperly installed child
restraint can cause serious personal injury or death in a crash.
• Always make sure that the safety belt retractor is locked when
installing a child safety seat. An unlocked safety belt retractor
cannot hold the child safety seat in place during normal driving or
in a crash.
• Always buckle the child safety seat firmly in place even if a
child is not sitting in it. A loose child safety seat can fly around
during a sudden stop or in a crash.
• Always make sure the seat backrest to which the child restraint
is installed is in an upright position. Otherwise, the seat back with
the child safety seat attached to it could fly forward in the event of
an accident or other emergency situation. ..,
Vehicle care Do-it-yourself service Technical data

-~_C_ h_e _c _ k_ i_n ...:::g::;...._ a_n_ d_ f_ i_ll _in -'g:::;.._ ___________________________________________ _
Closing the engine hood
- Pull the hood down until the pressure from the struts is
reduced.
- Let the hood
drop down and latch in place. Do not try to
push it shut;
it may fail to engage~& .
& WARNING
A hood that is not completely latched could fly up and block your
view while driving.
• When you close the engine hood, check it to make sure the
safety catch has properly engaged. The hood should be flush with
the surrounding vehicle body parts.
• If you notice while driving that the hood is not secured prop­
erly, stop at once and close it. •
Working in the engine compartment
Be especially careful whenever you work in the engine
compartment!
Whenever you must perform any work in the engine compartment,
for example checking and filling the different fluids, there is a risk of injury, burns and accidents. To prevent personal injury always
observe the following WARNINGS. The engine compartment of any
vehicle is a hazardous area!
=> &
& WARNING
To help avoid injury, before you check anything under the hood :
• Switch off the engine.
• Remove the ignition key.
• Apply the parking brake.
& WARNING (continued)
• Move selector lever of automatic transmission to "P" {Park);
put manual transmission in Neutral.
• Always let the engine cool down. Hot components will burn
skin on contact.
• To reduce the risk of being burned, never open the hood if you
see or hear steam or coolant escaping from the engine compart­
ment. Wait until no steam or coolant can be seen or heard before
carefully opening the hood .
• Keep children away from the engine compartment.
• Never spill fluids on hot engine components. They can cause a
fire.
• Never touch the radiator fan. The auxiliary electric fan is
temperature controlled and can switch on suddenly.
• Never open the coolant reservoir cap when the engine is still
warm. The coolant system is pressurized and hot coolant could
spray out.
• Protect your face, hands and arm from steam or hot engine
coolant by placing a thick rag over the cap when you open the
coolant reservoir.
• If work on the fuel system or the electrical system is necessary:
- Always disconnect the battery .
- Never smoke or work near heaters or open flames. Fluids in
the engine compartment could start a fire.
- Keep an approved fire extinguisher immediately available.
• To avoid electrical shock and personal injury while the engine
is running or being started, never touch :
- Ignition cables
- Other components of the high voltage electronic ignition
system.
• If you must perform a check or repair with the engine running: .,_