ignition AUDI TT COUPE 2009 Service Manual

& WARNING
You shou ld not u se t he re circ ulati on mod e for an exte nd ed p eriod
si nce no fre sh air i s drawn in , and with the air conditioning
sw itc hed off the windows ca n fog up -thi s inc re a ses the r isk of an
acc ident !•
A/C operation [A C)
Switching on A /C
- Press the (AC) button~ page 85, fig. 76 .
Switching A /C off
- Press the (AC) button again.
T he cooling system is switched on during A/C operation -the
heating and ventilation system is controlled auto matica lly.
[ i J Tips
I f the LED in the switch stays on after A/C operation has been
switched off( = switching the A/C off), there is a fau lt in an air condi­
tioning component. P lease consult an authorized Audi dealer when
there is an operat ing prob lem. •
Using the climate controls economically
E conomical use of the climate c ontrols helps to save fuel.
When climate control is working in cooling mode, engine
performance is reduced and fuel consumption is affected.
To keep the t ime the air cond itioning is on as s hort as
poss ible, you s hould do the following:
Controls and equip ­
ment
W arm and cold
- If you would like to save fuel, swit ch the air conditioning
off .
- If you open the windows while driving, switch the air
conditioning off .
- If the veh icle is extremely hot due to the heat of the sun,
briefly open doors and windows.
'£> For th e sake of th e environm ent
When you save fuel, you reduce emissions from the vehicle. •
Rear window defogger [ffiJ
The rear window defogger clears the rear window of
condensati on.
- Press the QuJ bu tton~ page 85, fig. 76 to turn the rear
window defogger on and off.
The rear window defogger works on ly when the engine is running.
The indicator light in the button illuminates when the rear window defogger is turned on.
The rear window defogger is switched off automatica lly after 10 to
20 minutes, depending on the outside temperature .
At very low outside temperatures, the rear window defogger can be switched on continuously by pushing the
Qiil button for more than 2
seconds. This remains stored until the ignition is switched off. A
rear window defogger that was switched on also remains stored for
15 minutes after the ignition is switched off.
If the engine is restarted within these 15 minutes, the rear window
defogger is activated for 10 to 20 minutes, depending on outside
temperature . With a vehicle that is parked for a short time, the rear
window defogger does not need to be manually activated again. .,,_
I • •

On the ro ad
Ignition lock and ignition switch
Ignition lock
The igniti on key starts or s tops the eng ine.
Ignition off G)
Fi g. 7 9 I gnition lock
po sition s
In position => fig . 79 G) both the ignition and engine are off , and the
steering is locked.
To
lo ck the steering after you have removed the ignition key, turn
the steering whee l in either direction until you hear it lock into
place . You should always lock the steering whenever you leave your
vehic le. This makes a vehicle theft even more difficult=>& .
Ignition on 0
If it is difficult to turn the key after you have inserted it into the igni ­
tion lock, turn the steering wheel back and forth. This will take the
load off the steering lock mechanism and you wil l be able to turn the
key freely and start the engine.
Starting the engine ®
In this position the engine starts . Whi le the engine is starting, the
power supply to the headlights and other electrical consumers is
temporari ly interrupted to conserve battery power . After the engine
has started, release the key and it will return to position
G) .
Before the starter can be operated again the key must be turned
back to posi tion
G) . The non -repeat lock prevents you from
damaging the starter when the engine is running.
& WARNING
• Never remove the key from the ignition lo ck while the veh icle is
moving. The steering wheel will lo ck causing lo ss of control .
• If you have to leave your vehicle -even for just a minute -always
remove the ign ition key and take it with you . This i s especially
i mportant if you are going to l eave children behind in the vehi cle .
The children could start the eng ine or u se other vehi cle control s.
Unsupe rv ised use of vehicle controls (for e xample , power
window s) can cau se serious per sonal injurie s.
[ i ] Tips
If the veh icle ba ttery has been disconnected a nd then reconnected,
then you must leave the key in position
G) for about 5 seconds
bef ore you can start the engine .•
Ap plies to v ehicle s: w ith a utom at ic tr ansmiss io n
Ignition key safety lock
The ig nition ke y can only be rem oved when the selec tor
le ver i s in the "P" (Par k) p osition.
After switching off the ignition, the ignition key can only be
r emoved from the igni tio n lock w hen the se lector leve r is in the "P"
(Park) position . After you have removed the key, the selector lever is
l ocked and cannot be moved. •

Starting and stopping the engine
Starting the engine
The engine can only be started with on original Audi key
and the clutch pedal* depressed.
- Set the parking brake.
Move the selector lever to the neutral position (automatic
transmission: selector lever in P or N)
~ & .
- On vehicles with manual transmission, fully depress the
clutch pedal.
- Turn the ignition key to position
0 ~ page 92, fig. 79 -
do not depress the gas pedal when starting the engine!
- Let go of the key as soon as the engine starts.
A cold engine may at first be loud after it has been started. This is
due to the hydraulic valves building up the oil pressure . This normal
and no need for concern.
If the engine does not start immediately, stop trying after 10
seconds and then try to restart the engine about 30 seconds later.
& WARNING
Never start or let the engine run in a confined or enclosed area.
Exhaust fumes from the engine contain carbon monoxide, a color­
less and odorless gas. Carbon monoxide can be fatal if inhaled.
• Never leave the engine idling unattended. An unattended
vehicle with a running engine poses a danger of personal injury or
theft.
Controls and equip ­
ment
On the road
0 Note
• Avoid high engine speeds, fast acceleration or heavy engine
loads while the engine is still cold. This could damage the engine.
• The engine cannot be started by pushing or towing the vehicle.
~ For the sake of the environment
To avoid unnecessary engine wear and to reduce exhaust emis­
sions, do not let your vehicle stand and warm up. Be ready to drive
off immediately after starting your vehicle. Maintain moderate
speed until the engine is completely warm. Remember, the engine
performs best at operating temperature. •
Stopping the engine
-Turn the ignition key to position G) ~ page 92, fig. 79.
& WARNING
• Never turn off the engine until the vehicle has come to a
complete stop.
• The brake booster and servotronic only work when the engine
is running. With the ignition turned off, you have to apply more
force when steering or braking. Since you cannot steer and stop
normally, this can lead to accidents and serious injuries.
• The radiator fan can continue to run for up to 10 minutes even
after you have turned off the engine and removed the ignition key.
The radiator fan can also turn on again if the engine coolant heats
up because of intense sunlight or heat build-up
in the engine
compartment. .,
I • •

On the road
0 Note
Do not stop the engine immediately after hard or extended driving.
Keep the engine running for approximately two minutes to prevent
excessive heat build-up. •
Parking brake
Parking brake
When the parking brake is set, it prevents the vehicle from
rolling away unintentionally.
Setting the parking brake
~ ,-.. 0 0
i
Fig . 80 Center
console: Parking brake
set
- Pull the parking brake lever all the way up.
Releasing the parking brake Pull the parking brake lever up slightly
and press the
release button at the same time=> fig. 80 -arrow-.
Keep the release button pressed and lower the parking
brake=>
& -
If you should drive off with the parking brake still set, a warning tone
will sound and the following will appear in the instrument cluster to remind you to release the parking brake:
Parking brake set
The parking brake warning comes on only after you have driven for longer than 3 seconds and faster than 5 mph (5 km/h).
The parking brake warning light Brake (USA)/
{CD) (CON) illuminates
when the parking brake is set and you switch on the ignition.
& WARNING
Always release the parking brake completely . A partially engaged
brake will overheat the rear brakes, reduce their effectiveness and
cause excessive wear. This could lead to brake failure and an acci­
dent.
0 Note
Only after the vehicle has come to complete stop, should you firmly
set the parking brake and either move the gearshift lever into 1st .
gear (manual transmission) or move the selector lever into "P"
(Automatic transmission). •
Parking
To prevent a parked vehicle from rolling away, there are a
few things you should do.
When you park your vehicle, do the following:
- Stop the vehicle using the brake pedal.
- Set the parking brake firmly.
- Switch off the engine.

-Wit h a manual transm issi on, engage 1st gea r, or with a n
a utomatic transmission place the se lector lever in P
=> & .
- Remove the ignition key from the ignit io n lock.
Wha t el se you should do wh en parking yo ur v ehi cle on
a n incli ne or d ecline
Turn the steering whee l so that if the vehicle shou ld start to rol l, it
wi ll roll into the curb.
I f you are park ing on a
decline (the front of you r ve hicle facing
downhill) , turn the front wheels to the right so that they poin t
toward the curb .
If you are park ing on an in cline (the font of your vehicle facing
uphill!, turn the front whe els to the left so that they point
away from
the curb .
& WARNING
This is how you can reduce the ri sk of injury when le avi ng your
vehicle .
• Never p ark the vehi cle w here it can come
in cont act w ith dry
gra ss, s pilled fuel or any other flammable mater ial s.
• Never allow anyone -espe cially small ch ildren -to remain
in the
vehicle when it is locked . Locked doors make it more difficult for
re scu ers to ac ce ss the pa ssenger compartment in the e vent of an
emergency . Danger to life!
• Never lea ve childr en un super vis ed in the vehicle . Children
c ould release the parking brake or move the gearsh ift l ever out of
gear . The vehicle could start to r oll away a nd cau se an a ccident .
• No matter what the season i s, the temperature
in a parked
v ehi cle can reach dangerou s level s. •
Controls and equip ­
ment
On th e road
Acoustic parking system
Applies to veh ic les : wit h 4 -ch anne l a cou stic park ass is t
Rear acoustic park assist
Acoustic park assist gives a warning a bout o bstacles
behind the vehicle.
Description
The rear acoustic park assist (4 -channel acoustic park assist) deter ­
mines the d istance of the vehic le from an obstac le using u ltrasonic
sensors. The sensors are in the rear bumper. The volume and the
pitch of the chimes can be adjusted through the menu display
=> page 27.
The range at which the sensors start to m easure is about :
To the side
Center rear
Acti v atio n
2 feet (0 .60 m)
5 feet (1.60 ml
The pa rking assist is activated when rever se ge ar is engaged . A brief
tone confirms that the system is activated .
Backing up
Distance warning when backing up starts when an obstacle is
detec ted in the range of the park ass ist system . As the distance
decreases, the time interval between the aud ible tones becomes
shorter .
When the distance is less than 1 foot (0.30 m) , the tone becomes
continuous . At this point you should stop backing up.
Please note that low objects a lready signalled by a warning can
disappear from the sys tem's detection range and wil l not continue
t o be signa lled . ..,
I • •

On the ro ad
Pote nt ial malf un cti ons
If a warning buzzer sounds for a few seconds when the ign ition is
switched on, there is a system malfunction with the acoustic park
assist. If the malfunction persists until the ignition is switched off,
there will be no acoustic warning at the next attempt to activate the system. Have the problem corrected.
There is no confirmation tone when reverse gea r is engaged if there
is a system malfunction .
For the parking assist to operate, the sensors must be kept clean
and free of ice.
& WARNING
• Sen sor s hav e blind spots in w hic h obj ec ts can not b e dete cted.
P ay s pecial attenti on to small childr en and anim als . They cannot
al ways be dete cte d b y the sensor s -dan ger of an accident !
• The p arking a ssis t cann ot r eplace th e driver' s attention . The
d rive r alone is re spon sible f or p ark ing an d simil ar d riv ing mane u­
ver s. A lway s wat ch whe re you are driving .
(D Note
Low obstacles a lready signa lled by a warn ing can disappear from
the system's detection range as they are approached and wi ll not
continue to be signalled. Objects such as barrier chains, trailer draw
bars, thin pa inted vertical poles , or fences may not be detected by
the system -risk of damage.
[ i J Tip s
For the parking assist to operate, the sensors must be kept clean
and free of snow and ice. •
Cruise control
Switching the system on
The cruise control system makes it possible t o drive at a
constant speed sta rting at 20 mph (30 km/h) .
Ai------
I
Fig . 8 1 Contr ol l ever
w ith se t butt on
Fig . 8 2 Displ ay:
Se lec te d spee d
Pull the lever to position G) ~ fig. 8 1 to switch the
system on.
Drive at the speed y ou wis h to se t.
Press but ton
@ to set that speed.
The display~ fig. 82 will show the set speed. The display may vary
depending on the type of display in your vehicle . The indicator light
~

CRUISE (US mod ell/ f-f (Canadian mod ell will also light up in the
instrument cluster .
& WARNING
• Always pay att enti on to traffic ev en whe n the c rui se control is
swi tched o n. Yo u are alway s resp onsi ble for your spe ed and the
di stanc e betw een your veh icle and other ve hic le s.
• Fo r sa fet y re as on s, th e c ruise control shou ld not be u sed in the
c it y, in stop -and -go traffic , on twi sting road s and when road condi­
t ion s a re poor (such as ice, fog, gra vel, hea vy ra in and hydro­
planing ) - risk of accid ent.
• Turn off the cr uis e control t empor arily when e nte ring turn
lane s, highwa y ex it lane s or in con stru ctio n z one s.
• Please note that inad vertentl y "re sting " your foot on the a ccel­
er ato r ped al ca use s t he crui se control not to br ake . Thi s is because
the cru ise control i s overridden b y the dri ve r's acc eleration .
[ i] Tip s
• Vehicles w ith manua l transmission : You can at tain the set speed
only if the currently engaged gear allows it and the engine is not
stressed. Shifting to a higher or lower gear promptly will allow the
engine to run smooth ly .
• The cruise control cannot maintain a constant speed when
driving downhi ll. The vehicle will acce lerate under its own weight .
Downshift to a lower gear or use the brakes to s low down. •
Changing speed
-Press lever in the 0 or O direction => page 96, fig. 81 to
increase or decrease your speed.
- Release the lever to save that speed .
Controls and equip­
ment
On th e road
Change speed in increments of 1 mph (1 km/h) by lightly pressing
the lever . If you keep the lever pressed down, you will a lter your
speed in 5 mph (10 km /h) increments .
You can a lso press the acce lerator pedal down to increase your
speed, e.g. if you want to pass someone. The speed you saved
earlier will resume as soon as you release the accelerator pedal.
I f , however, you exceed your saved speed by 5 mph (10 km/h) for
longer than 5 minutes, the cruise control will turn off temporarily .
The symbol will go ou t but the saved speed will be retained. •
Presetting your speed
You can preset your desired speed while the vehicle is not
moving.
Turn on the ignition.
P ull lever into posit ion
G) => page 96 , fig . 81.
Press the lever in the
0 or O direction to increase or
decrease your speed.
- Release the lever to save that speed .
This function makes it possible, for example, to save the speed you
want before driving on the highway . Once on the highway, activate
the cruise contro l by pulling the lever toward
(D . •
Switching the system off
Tempor ary d ea ctiv ati o n
Press the brake pedal, or
- Keep the c lutch pedal pressed down
longer, or
- Press th e l ever into position @ (n ot c licked into place)
=>
page 96 , fig. 8 1, or ~
I • •

On the ro ad
- Drive for longer t han 5 minutes at more than 5 m ph
(10 km/h) above the st ored speed .
Switching off compl etely
Press lever into position @ (clicked into place), or
- Sw itch the ignition off .
The system retains the saved speed if you deactivate the cruise
control temporarily. To resume the saved speed, release the brake or
clutch peda l and pull the leve r to position
G) .
Switching the igni tion off erases the saved speed .
& WARNING
You should only return t o the saved speed if it i s not t oo f ast for
the current tr affi c c ondition s -ri sk of an accid ent! •
App lies t o vehic les: wit h magn etic rid e
Audi magnetic ride
Damping can be adjusted to the driver's preference and it
a dap ts automa tically t o the current driv ing si tuation.
F ig . 83 C enter
co nsole: Sw itch for
A udi m agn etic ride
Press the switch ~ fig. 83 to turn sport setting on or off.
Audi magnetic ride is an e lectronically controlled damping system.
This chassis system assists the driver by adap ting to the particular
situation through imperceptib le control processes. The
damping
provides individua l modulation of damp ing forces. For example,
with damping characteristics set to provide greater comfort ,
damping is set somewhat harder for a brief period only as required,
when rounding a curve and when braking .
Standard setting
Select the standard setting if you prefer a suspension setting
emphasizing comfort .
Spo rt setting
Se lect the sport setting if you prefer a sporty suspension setting .
The LED in the switch comes on to indicate sport setting.
[ i ] Tip s
The warning/indicator light in the ins trument cluster comes on in
the event of a malfunction. Drive to the c losest authori zed Audi
dea ler as soon as possible and have the malfunction repaired. •

Transmission
Manual transmission
Applies to vehicles: with manual transmission
Gearshift lever
The clutch pedal must be depressed all the way before
you can start the engine .
The manual transmission in your Audi is equipped with a n
interlock-feature.
-Depress the clutch pedal all the way.
- Start the eng ine with t he gearshift
lever i n Neutra l and
the clutch pedal depressed .
0 Note
Always depress the clutch pedal fully when changing gears. Do not
hold the vehicle on a hi ll with the c lutch pedal partially depressed .
This may cause premature clutch wear or damage .
[ i J Tip s
• Resting your hand on the gearshift lever knob while driving will
cause premature wear in the transmission .
• T he back -up lights go on when you shift into Reverse with the
ignition on .•
Con tro ls and eq uip­
ment
Tran smi ssion
App lies to vehicles: with manual transm ission
Gearshift patt ern (6-speed manual
transmission )
Engaging reverse gear (R)
Fi g. 84 Gear shift
patt ern : 6-s peed
manual tr an sm iss ion
Move the shift lever all the way to t he left, press it dow n,
then pus h it forward .
Especially after driving forward, stop the vehic le completely, shift
into
Neutral and rest the shift lever briefly in Neutral before shifting
into
Reverse. •
S tronic transmission
Applies to vehic les: w ith S tronic®
Introduction
Your vehicle is equipped with a S tronic transmission, also called a
double -c lu tch system/transmission .
Power is transferred between the engine and the transmission by
means of two independent clutches. They replace the torque
tJ,,,
Vehicle care I I irechnical data

_L_T ..:..:r.::a :.: n~ s:.:.m .:.:.:. i.:::s :.::S :.:i.::O :.:n..:.... _____________________________________________________ _
converter of conventional automatic transmissions and allow the
vehicle to accelerate without a noticeable break in the power flow.
With the aid of
tiptronic, the gears can optionally be shifted manu­
ally => page 103. •
Applies to vehicles: wit h S tronic®
Selector lever positions
All the selector lever positions are explained in this
section.
Fig. 85 Display:
Selector lever posi ­
tions
The selector lever position is shown in the instrument cluster
display by highlighting the appropriate symbol.
P -Park lock
In this position the gears are mechanically locked.
The park lock must only be engaged with the vehicle
stationary
=>& .
To engage P and to remove the lever from this position, you must
depress the release button (button in the selector lever handle)
and
simultaneously you must step on the brake pedal.
R -reverse
In this position, reverse is engaged. Reverse gear must only be engaged with the vehicle
stationary and
the engine running at idle speed=>& .
To engage R, you have to depress the release button
and simulta­
neously step on the brake pedal. In the R position, the back -up lights
illuminate with the ignition on.
N -Neutral
The transmission is in neutral in this position .
D -Normal position for driving forward
In this position, the forward gears are automatically shifted up and
down, depending on engine load and vehicle speed.
To engage S from N, the brake pedal must be depressed at speeds
below 5 km/h or when the vehicle is stationary=>& .
In certain circumstances (driving in the mountains for example) it
can be beneficial to switch temporarily to the manual shift program
=>
page 103 in order to adjust the gear ratios to driving conditions
manually .
S -Sport setting
Th e S setting should be selected for sporting driving . The power
reserves of the engine can be fully exploited through later upshifts.
To engage S from N, the brake pedal must be depressed at speeds
below 5 km/h or when the vehicle is stationary =>& .
& WARNING
• Never place the selector lever in the R or P position while the
vehicle is moving -risk of an accident!
• With the engine running, it is necessary to hold the vehicle with
the foot brake in all selector lever positions (except P and Nl,
because even at idle speed the transfer of power is never
completely interrupted -the vehicle "creeps".
If the vehicle is
stationary and the transmission is engaged, the engine should
never be speeded up unintentionally (e.g. manually from under the _.,