2008 AUDI TT ROADSTER fuel

Knee airbags . . . . . . . . . . . . . . . . . . 161
Side airbags . . . . . . . • . . . . . . . . . . . 164
Child Safe ty . . . . . . . . . . . . . . . . . . . . 168
Important things to know . . . . . . . 168
Important safety instruct ions for
using child safety seats ........ .
Child safety seats .. ...... ..... .
Insta lling a ch ild safety seat .... .
Add it ional Information .... ... .. .
Vehicle operation ....... .
Intelligent technology ......... .
Notice about da ta recorded by
veh icle contro l modules ....... .
Electronic Stab ilizat ion Program
(ESP) ... ... ... ... .... .... .. ... .
Rear spoiler .................. .
Braking .................... .. .
El ectro -mechanical power assist .
Driving with your quattro® ..... .
Driving and environment .... . .
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173
177
180
183
184
184
184
187
188
190
191
192
The first 1,000 miles (1,500 km) and
afterwards . . . . . . . . . . . . . . . . . . . . 192
Cata lytic converter . . . . . . . . . . . . . 193
Avoid damaging the vehicle . . . . . 194
Operate your vehicle economically
and minimize pollution ... .. ... . 194
Trailer towing . . . . . . . . . . . . . . . . . . 196
Vehicle care ..... ... ... ... .
C leaning and protection ...... .
General information
Care of exterior ............ .... .
Care of interior .. .. .. .... ... .. . .
Fue l supply and filling your fuel
tank .. ... ... ... ... ...... .... .. . .
Gasoline .... ...... ........•. ...
Fuel tank ..................... .
Checking and filling ...... ... .. .
Eng ine hood ... ........ ....... .
Engine compartment .......... .
Engine oil ........ ... ...... .... .
E ngine cooling system ......... .
Brake fluid ..... .. ... ... ...•. ...
Battery . ...... .. .. .......... .. .
W indshield/headlight washer
conta iner .. .... ... ... .. ... .. .. .
Tires and whee ls ...... ..... ... .
T ires . ............ ...... · ·, · · · ·
Run -flat tires ......... ... .... .. . 199
200
200
200
208
214
2 14
2 15
2 19
219
221
222
227
230
231
236
238
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257
Table of contents
Do-it-yourself service .. . 261
What do I do now? . . . . . . . . . . . . . 262
Trunk escape handle . . . . . . . . . . . . 262
Veh icle tool kit . . . . . . . . . . . . . . . . . . 262
T ire repair . . . . . . . . . . . . . . . . . . . . . . 263
What should I be aware of when
changing a tire? . . . . . . . . . . . . . . . . 267
Fuses and bulbs ................ 273
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Bu lbs ......... .. ... .... ... ..... 277
Emergency situations . . . . . . . . . . 278
Genera l . . . . . . . . . . . . . . . . . . . . . . . . 278
Starting by pushing or towing . . . . 278
Starting with jumper cables . . . . . . 278
Use of jumper cables . . . . . . . . . . . . 279
Emergency towing with commercial
tow truck . . . . . . . . . . . . . . . . . . . . . . 281
Lif ting vehicle . . . . . . . . . . . . . . . . . . 283
Technical data
General information
287
288
Explanation of technical data 288
Vehic le identif ication . . . . . . . . . . . . 288
Vehicle care I I irechnical data

Inst rum ent s a nd warning /indi cato r li ghts
Instruments and warning/indicator lights
Instruments
Instrument cluster and controls
The instrument cluster is your central source of informa­
tion .
6
Fig . 2 Ove rv iew of the ins trum ent cluster
0
0
0
©
©
©
G)
©
Tachometer with time and date display ......•.....
Warning/indicator lights .. ... ..... ... ........ .. .
Coolant temperature gaug e .... ... ...... ...... .. .
Fuel gauge .. .... ... .. ...... .... ... ..... ... ... .
Speedome ter with odometer ..... .... ... .. .. ... .
Set/Chec k button ..... ... ..... ..... ... ........ .
Driver information display
Reset but ton for
~
"' N 9
i
12, 13
16
13
14
14
15
22
- trip odometer
- Service indicator
[ i ] Tip s
14
25
The illumination for the instrument cluster lights up whenever you
switch on the ign ition with the
ve hicle hea dlight s off. As the
daylight fades, the instrument cluster illumination likewise dims
automatically and wil l go out completely when the outside light is
very low. This feature is meant to remind you to switch on th e head ­
lights when outside light conditions become poor. •
Tachometer (engine rev counter)
The tachometer indicates the engine RPM (revolutions per
minutes) .
The tachometer 0 ~ fig. 2 is the left of the two large c lock -type
displays.
The engine turns at a speed
1,000 times the single digit in the
display, e.g . if th e ne edle is pointing a t the
"2" the engine is turning
at 2,000 RPM .
If engine RPM drops below 1,500, you should downshif t to the next
lower gear . The red ar ea at the end of th e scale indica tes maximum
permissible engine RPM after the break- in period. Before reaching
th is area , shift into the next higher gear (manua l transmission),
move the selec tor lever to position "D (Drive)" (automatic) or ease
your foot off the accelerator pedal.
0 Note
T he tachometer need le should not move into the red range . If it
does, then on ly for a very short period of time . You could damage
your engine by driving a t high RPM. ...

<£> For the sake of the environment
Upshifting early saves fuel and reduces engine noise. •
Digital clock with date display
Your vehicle is equipped with a quartz controlled digital
clock.
To set the hour
Fig. 3 Instrument
c luste r with the digital
c lock
- Pull the knob (hour display flashes) and turn it to the left
or right.
To set the minutes
- Pull the knob as many times as necessa ry until the
m in ute display flashes.
- Turn the knob to the left or right.
To set the date
-Pull the knob as many times as necessary until the day,
month or year display flashes.
- Turn the knob to the left or right.
Con tro ls and eq uip­
ment
Instruments and warning /indicator lights
To hide or display the date
- Pull the knob as many times as necessary until the date
display flashes .
- Turn the knob to the left or right.
When the date display stops blinking, this means the time and date
have been successfully stored.
With the ignition off, pushing or pulling the Set/Check button
~ page 12, fig. 2 ©-depending on the instrument cluster configu ­
ration - can turn on the display field lighting for a few seconds .•
Engine coolant temperature gauge
The engine coolant gauge~ page 12, fig. 2 © only works when the
ignition is on. To preven t damage to your engine, please note the
following important points:
Engine cold
As long as the needle remains at the left end of the gauge, the
engine still has not reached its operating temperature . Avoid high
engine speeds, heavy engine loads and heavy throttle.
Normal temperature
When the engine has reached its operating temperature, the needle
will move into the middle of the gauge and remain there. If the
engine is working hard at high outside temperatures, the needle
may turn further to the right. This is no cause for concern as long as
the -~- warning light in the instrument cluster does not illuminate.
When the
_J _ warning light starts to flash, this can mean one of two
things: either the coolant
temperature is too high , or the coolant
level is too low~ page 32 . ~
Vehicle care I I irechnical data

Instruments and warning/indicator lights
& WARNING
• Always observe the warning in=;, page 212, " Engine compart ­
ment" before opening the engine hood and checking the engine
coolant level.
• Never open the engine hood if you see or hear steam , or if you
see engine coolant dripping from the engine compartment . You
c ould burn your self. Let the engine cool off first so that you cannot
hear or see any steam or engine coolant .
0 Note
• Mounting additiona l lights or accessories in front of the a ir inlets
reduces the co oling effect of the radiat or. At high outside tempera ­
tures or h igh engi ne load, the eng ine could overheat.
• The fron t spoile r has been designed t o properly dis trib ute the
coo ling air when the veh icle is mov ing . If the spo iler is damaged,
this could red uce the coo ling effect and the engine co uld then ove r­
heat. Ask your authorized Audi deale r for assistance. •
Fuel gauge
The fuel gauge wor ks only when the ignition is on .
When the needle reaches the red area, the warning light in the i nstrument cluster w ill illu m ina te =;,
page 35 . Thi s means yo u
have approx imate ly 1.9 gallons (7 litres) of fuel left in the tank.
Time
to refuel!
The tota l tank capacity of your vehicle is listed in=;, page 297. Be
awa re of the diffe rent ta nk capaci ties of front -wheel a nd q uat tro®
a ll- w hee l d ri ve models .
0 Note
Never run the tank comple tely dry! An irre gular suppl y of fuel can
cause engine m isf iring and fuel could enter into the exhaust system.
The catalytic converter could then overheat and be
damag ed. •
Speedometer with odometer
The speedometer shows y ou t he vehic le speed, and the
o dome ter sho ws you ho w ma ny m iles (kilo meters) yo u
have dri ven.
Fig . 4 Speedomete r
close -up : odomet er
displ ay
T he od ometer an d trip odo mete r are locate d insid e th e spe edom­
eter .
• USA model s - Miles
• Canada mode ls - Kilometers
Lower odometer
The lower odometer shows the total number of miles (kilometers)
d riven.
Upper odometer (trip odometer )
The upper o dometer shows the tota l number o f mi les ( kilom eters)
driven since you last reset the odometer bac k to ze ro . You can use
thi s odomete r w hen you want to keep track of how ma ny m iles ( kilo­
meters) you have driven for a single trip or errand. The last digit indi ­
cates 1/10 of a m ile (10 0 meters). You ca n set t he trip od o meter back
to zero by pressing the reset button
=;, fig . 4 . ..,,

Inst rum ents and w arnin g/indi cat or li ghts
Folding top ,.... ·
The warning/indic ato r l ight monitors the folding top func­
tion.
The warning/indicator light illuminates when you switch on the
ignit ion for about 2 seconds as a check and then goes out. The
warning/indicator light has the following functions:
• The light illuminates when the folding top opens or closes .
• It flashes if one of the conditions for automatically lowering or
raising the folding top is not met and the switch to actuate the
folding top is pressed .
• The ligh t illuminates when the folding top is opened or c losed
incompletely. •
Electronic stabilization program (ESP) ~
The warning/indicator light monitors the electronic stabi­
lization program .
The warning/indicator light has the following functions:
• It blinks while you are driving, when the ESP is working.
• It illuminates when you switch on the ignition for approximately
2 seconds as a function check.
• It illuminates when there is a malfunction in the ESP .
• It illuminates continuously when the ESP is switched off.
• It illuminates if there is a malfunction in the ABS, s ince the ESP
is part of the ABS system.
If the ESP warning/indicator light illuminates and stays on after you
have started the engine, this may mean that the control system has
temporari ly switched off the ESP. If this is case, you can reactivate
the ESP by switching the ign ition off and then on again. The
warning/indicator light should go out to show that the system is
ful ly functional again. For more information about the
ESP=>
page 184 . •
Malfunction Indicator Lamp (MIL) I
•
T he Malfunction Indicator Lamp (MIU is part of the On-Board Diag ­
n ostic (OBD II) system . The symbol lights up when the ignition is
turned on and will turn off after the engine has started and has
sett led at constant id le speed. This indicates tha t the MIL is working
properly.
The warning light il luminates when there is a malfunction in the
engine e lectronic system. Contact your authorized Audi dealer and
have the malfunction corrected.
An imprope rly clo sed fuel filler cap m ay al so cau se the MIL light to
illumi nate =>
page 216.
For more information => page 26. •
High beam ~D
The@:D warning/indicator light illuminates when the high beams are
on or when you use the headlight flasher. For more information
about using the high beams, see=>
page 76. •
Rear spoiler J
The warning/indicator light monitors the electrically
retrac table rear spoiler.
The warning/indicator light~ has the following functions :
• It comes on for about 3 seconds as a function check when the
ignition is switched on.
• I t comes on if there is a malfunction in the electrical ly retractab le
rear spoiler . _,,,

Driver inf ormation sy ste m
Digital speedometer
Fig. 1 0 Dis play: Dig ital
s pe edom ete r
Current speed appears in the disp lay . Speed is shown in 1 mph
measures (USA models) or 1 km/h measures (Canada mode ls) .•
Warning : engine hood , door or rear lid open
The pictogram alerts you when doors or the rear lid have
been left open .
Fig . 11 D ispl ay: door,
re ar
lid , and en gine
h oo d open
With the ignition switched on, the open -door -or -lid warning illumi ­
nates when at least
one door, or the engine hood or the trunk lid is
not c losed. The symbol also shows you which door(s) or lid is not
closed. The illustration shows that the engine hood, the rear lid and
the driver's door is not closed=> fig . 11 . If the engine hood or trunk lid are not closed, the display will flash.
As soon as al l the doors and lids are proper ly closed, the warning
goes out .
You can switch off the open -door -or -lid warning display by brief ly
pressing the On Board computer control buttons=>
page 40. The
open door or trunk warning wil l, however, illuminate again as soon
as there is a change in the position of the doors, eng ine hood or
trunk lid. •
Fuel filler cap not closed properly
Fig. 12 C ente r dis play :
fu el fi ller cap op en
A message CLOSE FUEL TANK CAP ! in the driver informa tion display
wi ll come on if the fuel f iller cap is not proper ly closed. If the
message comes on, please perform the following steps upon
r eaching your next destination.
With the ignition turned off , open the fuel fil ler f lap and remove the
fue l cap. Next, reinstall the fuel cap being sure to twist the fuel fi ller
cap clockwise until you hear a definite "cl ick." Press the fuel filler
flap closed until it locks into place (and is flush with the car body) .
Af ter sw itch ing on the ign ition, the message may remain lit even
though the fuel filler cap is properly c losed. This is normal and there
is no reason to take your vehicle for service . _,,

If, however, the Malfunction Indicator Lamp (MIU comes on,
always drive to your nearest authorized Audi dealer or qualified
workshop and have the vehicle checked.
For more information =>
page 216, "Refuelling".•
Service interval display
The service interval display reminds you when your next
service is due.
Fig. 13 Section of
instrument cluster:
Service interval display
The service interval display detects when which service category is
required for your vehicle. It works in two stages:
• Service Reminder : Starting with a certain mileage before a
service event, this message appears when the ignition is switched
on:
SERVICE IN 5500 Ml 150 DAYS.
• Service Event:
If the due date for servicing has passed, the
message
SERVICE EXCEEDED! appears This message is accompa ­
nied by a warning signal. And the type of service needed is
displayed.
Checking the Remaining Distance
By briefly pulling the knob,=> fig. 13 -Arrow -, the remaining
distance and time to the next service schedule is displayed with the
ignition on . The distance remaining is updated every 300 miles (500
Controls and equip ­
ment
Driver information system
km). The next scheduled oil change and thereafter the next sched­
uled service will be displayed.
For new vehicles or after the vehicle has been serviced, the next
scheduled service will only be displayed after 300 miles (500 km)
have elapsed. Until this distance has been travelled, the display will
show
OIL CHANGE IN----- Ml ---DAYS and SERVICE IN----- Ml --­
DAYS.
To reset the display
The dealership performing the service resets the display when the service has been completed . You can reset the display in the instru ­
ment panel only if an oil change has been done. Proceed as follows:
• Switch the ignition on .
• Pull on button=> fig.
13 -Arrow-, and the following message
appears:
SERVICE EXCEEDED !.
• Keep pulling on the knob until OIL CHANGE IN ---- -Ml ---DAYS
appears in the display. If the reset button is not pulled within 5
seconds, the display reset mode closes.
[ i] Tips
• Do not reset the display between service intervals. Doing so will
result in an incorrect display.
• If service was not performed at the correct time or the service
interval display was not reset after service was performed, the addi ­
tional mileage driven or the elapsed days will be shown as negative
numbers.
• If the battery is disconnected, the Service Interval Display values
are retained.
• If a priority 1 malfunction is present (red symbol), the distance
remaining cannot be called up. •
I • •

Driver inf ormation sy ste m
On-Board Diagnostic system (08D)
Malfunction Indicator Lamp (MIL )
The Malfunction Indicator Lamp (MIU in the instrument cluster
=:> page 16, fig. 6 is part of the On -Board Diagnos tic (OBD II) system.
The warning/indicator ligh t ill uminates when the ignition is
switched on and goes out after the engine starts and the idle has
stabilized . This indicates that the MIL is working properly .
If th e light d oes not go out after the engine is started, or illuminates
while you are driving, a ma lfunction may exist in the engine system.
If the light starts flashing, the catalytic converter cou ld be damaged .
Continue driving
w ith redu ced pow er (avoiding sustained high
speeds and/or rapid acce lerations) and have the condition
corrected. Contact your authorized Audi dealer.
If the light illuminates, the e lectronic speed limiter may also be
malfunctioning. For more information=:>
page 26, "E lectronic speed
limiter".
An imprope rly clo sed fuel filler c ap m ay als o c au se th e MIL light t o
illumi nate =:. page 216. •
On-Board Diagnostics
F ig . 14 L ocation of
Data Link Co nnector
( DL Cl
On -Board Diagnostics monitors the components of your emission
control system. Each monitored component in your engine system
has been assigned a code. In case of a malfunction, the component
will be identified and the fault stored as a code in the control
module memory .
The MIL light may also illuminate if there is a leak in the on -board
f ue l vapor recovery system. If the light i lluminates after a refuelling,
stop the vehicle and make sure the fuel filler cap is properly closed
=:>
page 216.
In order to make an accurate diagnosis, the stored data can only be
displayed using special diagnostic equipment (generic scan too l for
OBD).
In order to connect the special diagnostic equipment, push the plug
into the Data Link Connector (DLCl. The DLC is located to the right of
the hood release =:> fig . 14.
Your authorized Audi dealer or a qualified service station can inter ­
pret the code and perform the necessary repair. •
Electronic speed limiter
Your vehicle may be factory equipped with tires that are rated for a
maximum speed of 130 mph (210 km/h). This is less than the
maximum speed of your vehicle. To reduce the risk of sudden tire
failure and loss of control if the vehicle is operated at excessive
speeds, your vehicle also has an electronic speed limiter . The elec­
tronic speed limiter prevents your vehic le from going faster than the
tire speed rating. For more in formation=:>
page 249.
If the vehicle approaches the tire speed rating, the engine control
unit will turn off the fue l injectors. You will notice an immediate loss
of engine power and a drop in road speed .
If the engine control unit receives faulty vehicle roadspeed signals,
the Ma lfunction Indicator Light (MIU will illuminate. If this
occurs, contact the nearest authorized Audi dealer for assistance.
~