2009 AUDI TT COUPE light

& WARNING
Not using a child safety seat, using the wrong child safety seat or
improperly installing a child restraint increases the risk of serious
personal injury and death in a crash.
• Never install rear-facing child safety seats or infant carriers on
the front passenger seat -even with an Advanced Airbag System .
A child will be seriously injured and can be killed when the
inflating airbag hits the child safety seat or infant carrier with
great force and smashes the child safety seat and child against the
backrest, or door=>
page 137, "Child restraints on the front seat -
some important things to know" .
• Always install rear-facing child safety seats or infant carriers on
the rear seat.
• Never install a rear-facing child restraint in the forward-facing
direction. Such restraints are designed for the special needs of
infants and very small children and cannot protect them properly
if the seat is forward-facing.
• 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 .
• Always read and heed all WARNINGS whenever using a child
restrained in a vehicle is being used=>
page 125 , "Safety belts",
=> page 135, "Airbag system" and=> page 157, "Important things
to know". •
Safety first
Child Safety
Convertible child safety seats
Properly used convertible child safety seats can help
protect toddlers and children over age one who weigh
between 20 and 40 lbs. (10 and 20 kg) in a crash.
Fig. 119 Rear seat:
smalle r child in a prop ­
erly installed forward­
facing convertible child
safety seat
When using the vehicle safety belt to install a child safety
seat, you must first activate the convertible locking
feature on the safety belt to prevent the child safety seat
from moving :::;,
page 168 or install the seat using the
LATCH attachment .
Push the child safety seat down with your full weight to
get the safety belt really tight so that the seat cannot
move forward or sideways more than one inch (2.5 cm)
:::;, page 168 .
A toddler or child is usually too large for an infant restraint if it is
more than one year old and weighs more than 22 lbs. (10 kg).
Toddlers and children who are older than one year up to about 4
years old and weigh more than 22 lbs (10 kg) up to 40 lbs . (18 kg)
should be properly res trained in a child safety seat certified for their
size and weight=> fig. 119 .
The airbag on the passenger side makes the front seat a potentially
dangerous place for a child to ride . The front seat is not the safest •
Vehicle care I I Technical data

-Child Safety -------=--------------------------------------------
place for a chi ld in a forward -facing ch ild safety seat . It is a very
da ngerous p lace fo r an i nfan t or a large r ch ild in a re arw ard -f ac ing
s e at .
& WARNING
Not using a child safety seat , using the wrong child safety seat or
improperly installing a child restraint increases the risk of seriou s
personal injury and death in a collision or other emergency situa ­
tion.
• Children on the front seat of any car, even with Advanced
Airbags, can be seriously injured or even killed when an airbag inflates. 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 w ith an Advan ced Airbag System .
• The inflating airbag will hit the child safety seat or infant
carrier with great for ce and will smash the child safety seat and
child against the backrest or door.
• Always install rea r-facing child safety seats on the rear seat .
• 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 .
• Always read and heed all WARNINGS whenever using a child
restrained in a vehicle is being used=>
page 125 , "Safety belts ",
=>
page 135 , "Airbag sy stem" and=> page 157 , "Important things
to know ".
& WARNING
If exceptional circumstances require the use of a forward-facing
child restraint on the front pas senger's seat , the child's safety and
well-being require that the following special precautions be taken :
& WARNING (continued )
• Make sure the forward-facing seat ha s been designed and certi­
fied by its manufacturer for use on a front seat with a pa ssenger
front and side airbag .
• Always follow the manufacturer's inst ructions prov ided with
the child safety seat or carrier.
• Always move the front passenger seat into the rearmost posi ­
tion of the passenger seat's fore and aft adjustment range , and as
far away from the airbag as possible before installing the child restraint.
• Always make sure that nothing prevents the front passenger's
seat from being moved to the rearmost position in its fore and aft
adjustment range .
• Always make sure the backrest is in an upright position.
• Make sure that the PASSENGER AIR BAG OFF light comes on
and stays on all the time whenever the ignition i s switched on.
• If the light does not stay on , perform the checks=>
page 146,
"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 whenever the ignition is switched
on .a

___ C_h_ i_ ld _ S_ a_ f_ e_ t_y ____________________________________________ _
& WARNING
Not using a booster seat, using the booster seat improperly , in cor ­
rectly installing a booster seat or using the vehicle safety belt
improperly in creases the risk of serious personal injury and death
in a collision or other emergency situation. To help reduce the risk
of serious personal injury and /or death:
• Always make sure to position the shoulder portion of the three ­
po int belt over the m iddle of ch ild's shoulder .
• Never let the shoulder portion of the belt rest against or across
the neck , face , chin, or throat of the child .
• Always make sure the lap belt portion of the three-point belt is
worn snug and passes as low as possible across the child 's pelvis.
Never let the belt pass over the soft abdomen.
• Failure to properly route safety belts over a child's body will
cause severe injuries in an accident or other emergency situation
=>
page 125 .
• Children on the front seat of any car, even with Advanced
Airbags , can be seriously injured or even killed when an airbag
inflates . 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.
• Never let a ch ild stand or kneel on any seat , for example the
front seat.
• Never let a child ride in the cargo area of your vehicle.
• Always remember that a child leaning forward , sitting s ide ­
ways or out of position in any way during an accident can be
struck by a deploying airbag . This will result in serious personal
injury or death .
• If you must install a rearward facing child safety seat on the
front passenger seat because of exceptional circumstances the
PASSENGER AIR BAG OFF light must come on and stay on, when ­
ever the ignition is switched on .
& WARNING (continued)
• If the PASSENGER AIR BAG OFF light does not come on and stay
on, perform the checks described=>
page 146, "Monitoring the
Advanced Airbag System ".
• Take the child restraint off the front passenger seat and in stall
it properly at one of the rear seat positions if the PASSENGER AIR
BAG OFF light does not stay on whenever the ignition is switched
on .
• Always read and heed all WARNINGS whenever using a child
restrained in a vehicle is being used =>
page 125, "Safety belts",
=>
page 135, " Airbag system " and => page 157, "Important things
to know" .•
Booster seats on the rear seat
Ch ildr en who are a bo ut 7 years and older, wh o weigh mor e tha n 55
l b ( 25 kg ) and ar e not taller than 4'1 1" (1.5 m) are best protected
when pro per ly restrained on the rea r seat.
D ue t o limite d re ar s eat he ad cleara nce chil dren 4'3" (1.3 m) a nd
tal ler must not use booster seats on the rear seat of your Audi TT
Co upe . T he rear sea t of yo ur A udi TT C oupe has been spec ially
designed to permit c hildr en who are b etween 4'3" (1. 3 m) and 4'11"
( 1. 5 m ) ta ll (a bout 7 to 1 2 years old) to u se the a vai lab le thr ee -point
l ap and shoulder safety belts.
& WARNING
• The rear seat area is too small to safely transport passengers
taller than 4'11" (1.5 ml.
• Persons taller than 4'11 " (1 .5 m) as well as children in booster
seats who are too close to the rear window and roof can suffer
severe head and neck injuries when the rear lid is closed or in a
crash .

____________________________________________ __:C:::. h :....:..:..:. il.:::d ~S :::.:::a.:.:fe :::. t:.! y~ _ffllll
& WARNING
Always take special precautions if you must install a forward or
rearward -facing child restraint on the front passenger's seat in
exceptional situations:
• Whenever a forward or rearward -facing child restraint is
installed on the front passenger seat , the PASSENGER AIR BAG
OFF light must come on and stay on whenever the ignition is
switched on.
• If the PASSENGER AIR BAG OFF light does not come on and stay
on , perform the checks described
=> page 146, "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 whenever the ignition is switched
on .
• Improper installation of child restraints can reduce the ir effec­
tiveness or even prevent them from providing any protection .
• An improperly installed ch ild restraint can interfere with the
airbag as it deploys and seriously injure or even kill the child.
• 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 .
& WARNING
Forward-facing child restraints:
• 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 .
Controls and equip­ ment Safety first
Vehicle operation
& WARNING (continued )
• 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.
& 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
fac ing child safety seat on the front passenger seat in e xceptional
circumstances .
• A tight tether strap on a rearward-facing child restraint
attached to the front passenger seat can put too much pressure
on the weight-mat in the seat and register a heavier weight in the
Advanced Airbag System. The heavier weight registered can make
the system work as though an adult were on the seat and deploy
the Advanced Airbag when it must be suppressed causing serious or even fatal injury to the child .
• Make sure that the PASSENGER AIR BAG OFF light comes on
and stays on all the time whenever the ignition is sw itched on .
• If the PASSENGER AIR BAG OFF light does not come on and stay
on , immediately install the rear-fac ing child safety seat in a rear
seating position and have the airbag system inspected by your
Audi dealer. •
Vehicle care Do-it-yourself service Technical data

Fo rw ard facing child r estra ints manufactu red after September 1,
1 999, a re requ ired by U .S. f edera l r eg ulations to com ply wi th child
head movement pe rformance requ irements. These new perfo r­
m ance req uir e m ent s m ake a tethe r neces sary on mos t new child
safety seats.
& WARNING
Improper installation of child restraints will increase the risk of
injury in a crash .
• Never attach a child safety seat tether strap to a tie-down hook
in the luggage compartment.
• Never secure or attach any luggage or other items to the LATCH
lower anchorages or to the tether.
• If a tether or other strap is used to attach a child restraint to the
front passenger seat , make sure that it is not so tight , that it
causes the weight-sensing mat to measure more weight than is
actually on the seat.
• The heavier weight registered can make the system work as
though an adult were on the seat and deploy the Advanced Airbag
when it must be suppressed causing serious or even fatal injury to
the child .•
Using tethers on rear-facing child restraint
systems
Curr ently, few r ear -facing chi ld restraint systems come with a tether.
P lease read and heed the c hild restrai nt s ystem manufac tu re r's
instructions careful ly to determine how to proper ly instal l the
tethe r.
Safety first
Child Safety
& 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 ch ild safety seat and
child against the backrest , or door .
• A tight tether or other strap on a rearward-facing child restraint
attached to the front passenger seat can put too much pressure
on the weight-mat in the seat and register a heavier weight in the
Advanced Airbag System. The heavier weight registered can make
the system work as though an adult were on the seat and deploy
the Advanced Airbag when it must be suppressed causing serious or even fatal injury to the child.
• 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 posit ion and have the airbag system inspected by your
Audi dealer . •
Securing the upper tether strap to the anchor
bracket
Vehicle care I I
Fig . 129 Tether strap:
prope r routing and
mounting ..
irechnical data

___ ln_ t _e_ ll-'"ig ...,_ e_ n_t _t_ e_ c_ h _ n_o _ l_o _,.g= y,_ __________________________________________ _
Electronic differential lock (EOL)
The electronic differential lock monitors the rotational
speed of the drive wheels.
General notes
The electronic differential lock (EDU helps the car to start moving,
accelerate and climb a gradient on surfaces providing poor or
almost no grip. Without EDL, this would be difficult, if not impos ­
sible.
How the system works
Th e EDL operates automatically. It monitors the rotational speed of
the drive wheels on an axle with the help of the ABS sensors
=> page 187. If a noticeable difference in rotational speed between
the drive wheels on one axle is detected (e.g. on slippery ground on
one side), the spinning wheel is braked, thereby transferring power
to the other drive wheel or wheels (all-wheel drivel. This is done up
to a speed of about 60 mph (100 km/hl. Noises from the brake
system signal that wheel spin is being controlled.
Driving off
When driving off, always be sure to keep road conditions in mind as
you accelerate . If one drive wheel spins because it is on a surface
with less grip, gradually increase the pressure on the accelerator
pedal until the car starts to move. The wheel less able to transfer
power spins.
Overheating of brakes
To prevent the disc brake of the braked wheel from overheating if
subjected to excessive loads, the EDL cuts out temporarily . The
vehicle remains operational and behaves in the same way as a
vehicle without EDL.
As soon as the brake has cooled down, EDL switches on again auto­
matically.
& WARNING
• When accelerating on slippery surfaces, such as on ice or snow,
always be careful when depressing the accelerator pedal. Even
with the EDL working, the drive wheels can spin and reduce your ability to control your car. -Risk of crash!
• The increased safety afforded by EDL does not mean that you
can take safety risks. Always adapt your driving style to the road
conditions and traffic situation.
[ i] Tips
If a fault occurs in the ABS, the EDL is also not functioning . This is
indicated by the ABS warning light=> page 20. •
Anti-Slip Regulation System (ASR)
The Anti-Slip Regulation System prevents the driven
wheels from spinning when the car is accelerating.
General notes
The Anti-Slip Regulation System (ASR) is integrated in the electronic
stabilization program (ESP). When the vehicle starts up and acceler ­
ates , the wheels are prevented from spinning by adjusting the
engine power to match the amount of grip available from the road
surface .
How the system works
ASR performs automatically, i.e. without the driver's intervention .
With the aid of the ABS sensors => page
187, ASR monitors the
speed of the driven wheels. If the wheels start to spin, the engine
torque is reduced automatically until the tires find enough grip to
lock onto the road surface . The system is active across the entire
speed range.
The ASR works in conjunction with the ABS. If a malfunction should
occur in the ABS, the ASR will also be out of action .
~

Activating
The ESP is automatically activated when the engine is started and it
performs a self-test. You can activate a deactivated ASR if required
by pressing the=>
page 182, fig. 130 button. When it is activated,
the message
ESP/ASR on appears briefly in the display. Vehicles
with front -wheel drive a deactivated ASR automatically re -activates
itself at a speed of 40 mph (70 km/h).
Deactivating
You can deactivate the ASR if required by pressing the button (for
less than 3 seconds)=>
page 182, fig. 130. With the ASR deactivated,
the ESP check light comes on, see=>
page 17. The message ASR off
appears in the display as well. On vehicles with front -wheel drive:
deactivation is possible only up to 30 mph (50 km/h) for safety
reasons. Vehicles with all -wheel drive : the ASR can be deactivated
at any speed.
The ASR should normally be activated all the time. Only in certain exceptional situations when some slip is desirable does it make
sense to deactivate the ASR. Examples:
• when driving with tire chains
• when driving in deep snow or on loose ground and
• when rocking the vehicle loose after it has become stuck.
When the abnormal situation is over, you should activate the ASR
again.
& WARNING
The increased safety afforded by ASR does not mean that you can
take safety risks. Always adapt your driving style to the road
conditions and traffic situation.
[ i J Tips
To ensure that the ASR works properly, all four wheels must be fitted
with identical tires. Any differences in rolling radius of the tires can
Intelligent technology
cause the system to reduce engine power when this is not desired.
See also ::::>
page 246, "New tires and replacing tires and wheels".
Rear spoiler
The rear spoiler improves vehicle handling and enhances
driver control.
Fig. 131 Switch for
rear spoiler
The rear spoiler deploys and retracts. Spoiler operation can be set
for automatic or manual operation .
Automatic mode (normal operation)
• Automatic deployment : At a speed of about 75 mph (120 km/h),
the rear spoiler deploys automatically.
• Automatic retraction: When speed drops below about 50 mph
(80 km/h), the rear spoiler retracts automatically.
Manual mode
• Manual deployment: Tapping briefly on the switch ::::> fig. 131
deploys the rear spoiler .
• Manual retraction: At speeds up to about 10 mph (20 km/h),
retract the rear spoiler by pressing and holding the switch
::::> fig. 131. At speeds between 10 mph (20 km/h) and 75 mph (120
km/h), retract the rear spoiler by tapping on the switch=> fig. 131 .
Vehicle care I I irechnical data

-Intelligent t echnology
-- -""'------------ ....::....:...:~---------------------------
After 15 cycles (deploy and retract) , manual operation is suspended
f o r up t o 2.5 minutes . Above 75 mph (120 km/h), operation swi tches
to automatic mode .
& WARNING
Driving at higher speeds witho ut the re ar spoiler deployed can
impair handling characteri stics, making the vehicle harder to
c ontrol.
• Always make sure that the spoiler i s deployed when driving at
speeds over 85 mph (140 k m/h). If the rear spoiler warning /ind i­
c ator light in the in strument clu ster come s on , the rear spoiler
may not have deployed .
• Never drive at speed s higher than 85 mph (140 km /h ) if the
spoiler is not deployed . Have the spoiler inspe cted as soon as
po ssible by an authorized Audi dealer or qualified workshop.
• Always obey speed limits and other traff ic law s.
& WARNING
Improper operation of the rear spoiler can cause crushing injuries.
• Always make su re that nobody , especially children , is in the
way when the rear spoiler is deployed or retracted.
0 Note
Never push the vehicle or a pply force to the rear spoi ler -it cou ld be
damaged .
[ i ] Tips
Clean the spoi ler compartment every 2 to 3 months . The spoiler
compa rtment must always be free of ice, snow, leaves or other
debris .•
Braking
General "nformation
W hat aff ects braking effi cie ncy?
Operating condition s and driving habits
The brakes on today's automob iles a re sti ll sub ject to wea r,
depending large ly o n operati ng co nditions and driving habits~& .
On vehicles that are either driv en mostly in stop -and -go city traffic
or are driven hard, the brake pads shou ld be c hecked by you r au tho ­
ri ze d Audi dea ler mor e often than sp ecified in the
Warranty & Main ­
tenance booklet.
Fai lure to have your brake pads inspected can
resu lt in reduced brake performance.
On s teep sl opes, you should use the braking effec t of the engine .
T his way, you prevent unnecessary wear on the brake sys tem . If you
must use your brakes, do not hold the brakes down continuous ly.
P ump t he b rakes a t interva ls.
Moi sture or road salt
Under certa in conditions, for example , when driving through water
or
ve ry heavy rai n, o r even afte r washing you r ve hicle, the brak ing
e ff ect can be reduced due to moisture (or in freezing cond it io ns ice)
on the brake pads . A few cautious brake applications should dry off
the brake pads or remove any ice coat ings.
T he effectiveness of the brakes can be reduced when the vehic le is
driven on a sa lt-c o ve re d r oad and the brake s are not used . Likew ise,
you clean off accumulated sa lt coat ing from brake discs and pads
wit h a few cau tious applica tions of t he brake ~& .
Corrosion
There may be a tendency for d irt to buil d up o n the b rake pads a nd
corrosion to form on the discs if the car is not driven regular ly or
only for sho rt trips wi th lit t le use of the brakes. ._