check engine light AUDI TT ROADSTER 2008 Owners Manual

Table of contents
Table of contents
Vehicle literature ........ .
About this Owner's Manual .............. ...... . .
Controls and
equipment .. .. ... . .. ... ... . .
Cockpi t ... .......... ...... ..... .
Genera l ill ustration ............. .
Instruments and
warning/indica tor lig hts ....... .
Instruments .............. ..... .
Warning/indicator lights ........ .
Driver informa tion system ..... .
Introduction ............... .... .
On-Board Diagnostic system (080)
Menu display ...... ............ .
Au to-Check Control ... ... .... .. .
Speed warn ing system . ... ..... .
Trip computer ................. .
T ire pressure monitoring system ..
Opening and closing .......... .
Keys .......................... .
Powe r lock ing system ..... ..... .
Rear lid /tr unk lid .............. . . 5 Ant
i-theft a larm system ........ .
Power w indows ... ... .... .... .
Folding top ................ ... .
Folding top ... .. ..... ...... ... .
6 W ind Deflector ........... ... .. .
E merge ncy Ope rat ion of the Fold ing
Top ........... ............ .. . .
Clear vision . ... ............ ... .
56 Cruise control . . . . . . . . . . . . . . . . . . 11 O
57 Audi magnetic ride . . . . . . . . . . . . . 112
60
Transm1ss1on . . . . . . . . . . . . . . . . . . . 113
60 Manua l transmiss ion . . . . . . . . . . . . 1 13
64 S tron ic tra nsmission . . . . . . . . . . . 1 13
64
69
Home link® . ...... .. ... ... ... .. .
Universa l remote control ....... .
121
121
Lights . . . . . . . . . . . . . . . . . . . . . . . . . 69
In ter io r lights ....... ..... ... .. .
V is ion ..................... ... .
W iper and washer system ...... .
Mirrors ..... ............... ... .
Digital compass ............... .
9 Seats and storage ......... ... .
11
1 1
1 2
12
1 6
22
22
26
27
29
37
39
41
47
47
50 55 Genera
l recommendat ions ..... .
Ad justing front seats manua lly ..
Powe r seats ..... ....... .... .. .
Lumbar support .. ............. .
Head restraints ............•...
Luggage compartment ........ .
Cup holder ... ...... ... ..... .. .
As htray ................... ... .
Cigarette lighter /socket ..... ... .
Storage ............ ....... ... .
Warm and cold ............... .
Climate controls ....... ... .• .. .
Rear window defogger
Qlil ..••.••
Heated sea ts .. ..... ..... ..... .
On the road . ... .. .......... ... .
Steering ...................... .
Ign it ion lock an d ignition sw itch .
Starting and stopping the engine
Park ing brake ................. .
Acoustic pa rking system .... ... .
77
77
78
82
85
87
87
88
89
91
92
93
94
94
95
95
98
98
103
104
105
105
106
107
108
109
Safety first ............... . .
Driving Safely . ...... ... ...... . .
General notes .. .... ....... ... . .
Prope r occupan t seating pos it ions
D river and passenger side footwe ll
Peda l a rea .. .. .... .... ... ..... .
Stow ing luggage .............. .
Report ing s afety defects ...... . .
Safety belts ................... .
General notes ................. .
Why safe ty be lts? .............. .
Safety belts ................... .
Safety belt tensioners .......... .
Airbag system ... ... ...... .... . .
Important things to know ...... .
F . b ron t air ags ........ ....... .. .
Monito ring the Advanced Airbag
System ....................... . 127
128
128
130
13
4
13 4
135
136
137
137
138
141
14 4
146
146
150
157

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 .... . .
171
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
238
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

<£> 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 . ..,,

USA models: anti-lock brake system ~ page 20
(ABS) defective
Canada models: anti-lock brake sys-
~ page 20
tern (ABS) defective
/@ Electro -mechanical power assist => page 21
& WARNING
• Failure to heed warning lights and other important vehicle
information may result in serious personal injury or vehicle
damage .
-
• Whenever stalled or stopped for repair, move the vehicle a safe
distance off the road, stop the engine, and turn on the emergency
flasher
=> page 75.
• The engine compartment of any motor vehicle is a potentially
hazardous area. Before you check anything in the engine compart­
ment, stop the engine and let it cool down. Always exercise
extreme caution when working under the hood
~ page 212,
"Engine compartment"
[ i] Tips
Many functions are moni tored by the Auto -Check system
=> page 29. Malfunctions or faults will be identified either with a red
symbol (priority 1 - Danger!) or with a yellow symbol (prior ity 2 -
Warning). •
Applies to vehicles : with Audi m agnetic rid e
Audi magnetic ride
The indicator light monitors vehicle damping.
The indicator ligh t illuminat es when th e ignition is switched on as
a function check.
Controls and equip ­
ment
Instruments and warning/indicator lights
[ i] Tips
If the indicator lamp illuminates while you are driving, there is a
malfunction in the vehicle damping. The chassis should be
inspected immediately by an authorized Audi dealer. •
Tire pressure monitoring system -telltale
indicator lamp
C.
The warning/indicator light appears in the event of a
significant loss of air pressure.
The warning/indicator light illuminates for a few seconds after
the ignition is turned on as function check and then goes out.
If the symbol appears, pressure is too low in at least one tire .
When the system d etects a malfunction, the warning/indicator light
will flash for approximately one minute and then remain continu­
ously illuminated . This sequence will continue upon subsequent
vehicle starts up as long as the malfunction exists. Contact your
authori zed Audi dealer and have the malfunction corrected.
For more information
=> page 43. •
Electronic power control "
This warning/indicator light monitors the electronic
power control.
The warning/indicator light (Electronic Power Control) illumi -
nates when you switch on the ignition as a function check .
[ i] Tips
If this warning/indicator light illuminates while you are driving , then
there is a malfunction in the engine electronics. Have the malfunc­
tion corrected as soon as possible by your authorized Audi dealer or
qualified workshop. •
I • •

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 . _,,,

Instruments and warning/indicator lights
Brake system BRAKE (USA)/ (CD) (Canada)
This warning/i ndi cat or light illumina tes whe n th e brake
fluid level i s to o low or w hen t here is a malfuncti on in the
ABS , or w hen the pa rkin g br ake is set.
The ligh t illumin ates when the igniti on is turned on . It goes out aft er
th e engine has been started and the parking brake is fu lly r eleased.
Th is i ndicates that t he bra ke w arning ligh t is f uncti oning properly .
If the brake warning light does not light up when the engine is
cranking or the parking brake is applied , there may be a malfunction
in the electrical system. In thi s case , contact your Audi dealer.
When the light com es on, an acoustic warn ing signa l will sound .
Parking brake set
The BRAKE warning/indicator light illuminates when the parking
br ak e i s set :::::,& .
& WARNING
• USA model s.~ If both , the BRAKE warning light and the ~
warning light come on at the same time , the rear wheels could
lock up first under hard braking . Lo ck-up of the rear wheel brakes
can cause loss of vehicle control and an accident . Have your
vehicle repaired immediately by your authorized Audi dealer or a qualified workshop . Drive slowly and avoid sudden, hard brake
application.
• Canada models : If both , the b rake warning light
((j)) and the ABS
warning light come on at the same time , the rear wheels could
lock up first under hard brak ing . Lock -up of the rear wheel brakes
c an cause loss of vehicle control and an accident. Have your
vehi cle repaired immediately by your authorized Audi dealer or a
qualified workshop . Drive slowly and avoid sudden , hard brake
application
• If the brake warning /indicator light does not go out after a few
seconds and the parking brake released , or lights up while you are
& WARNING (continued)
driving , the fluid level in the brake fluid reservoir is too low . If you
believe that it is safe to do so, proceed immediately at low speed
to the nearest authorized Audi dealer or qualified workshop and
have the brake system inspected.
• Please be very careful and always keep in mind that after
several brake applications, you will need greater pressure on the
brake pedal to stop your vehicle . Consequently , you must allow for
increased braking distances. Trying to brake as qui ckly as usual
c ould lead to an ac cident . •
Anti-lock brake system 8 (USA)/
~ (Canada)
This warni ng /ind icato r lig ht moni tors the AB S and the
electronic differenti al lock (EDL).
The light will come on for a few seconds when the ignition is
switched on. The light wil l go out after an automatic check sequence
is completed.
There is a malfunction in the ABS when :
• The warnin g/i ndica to r l ight do es no t illumin ate when you swi tch
on the ignition .
• The warn ing/i ndi cator lig ht does not go ou t after a few seconds .
• T he warning/indicator l ight il luminates whi le driving.
The brake system will still respond even without the assistance of
the ABS system. See your authorized Audi dealer as soon as possible to restore full braking performance . For more in for mati on
regarding t he ABS=> page
189.
The ABS warning l ight and the brake warning light come on
together . The ABS will not work and you will notice a change in
braking response and performance .

& WARNING
Always observe the posted speed limits and adjust your speed to suit prevailing road, traffic and weather conditions. Never drive
your vehicle faster than the maximum speed rating of the tires
installed. •
Menu display
Introduction
0 ,...
"' 9 .., 00 m
Fig. 15 Wiper lever:
Controls for the menu
display
"'
"'
~ m
Fig . 16 Display: Start
menu
Some functions in your vehicle can be set, activated , and controlled
by
Menus (e.g. Acoustic Park Assist*). With these menus you can
Con tro ls and eq uip­
ment
Driver information system
also select the information shown in the DIS display, which operates
only with the ignition switched on. Operation is controlled by the
I Reset) button and the rocker switch on the wiper lever::::, fig. 15.
The Start menu shows you the different display types:
Set
Check
Menu off
Each display type in the Start menu contains a submenu with addi­
tional options.
Set
Check
Menu off Clock ::::, page 28
Lighting* => page 71, "Daytime
running lights (DRU
(USA
models)" =>
page 73
Computer ::::, page 28
Acoustic park assist* => page 109
Speed alarm (speed ::::, page 38
warning)
Language (6 languages) => page 28
Units (distance, fuel con-::::, page 28
sumption, temperature)
Wiper (service position) => page80
Window => page 58
Doors (Auto-lock) => page 50
Service ::::, page 25
Vehicle ID number* => page288
Engine oil temperature*
l! AII of the messages shown in vehicles without
menu display appear on the display screen.
•
Vehicle care I I Technical data

Driver inf ormation sy ste m
If Auto Check senses an irregu lar condition or a malfunction
requiring urgent repair, it generates a specific symbol or short message in the instrument cluster center display . You will also hear
an audible warning tone. The displays are color coded in either red
or yellow depending on their level of priority.
The red symbols indicate a
d angerou s conditio n which is addition ­
a lly signal led by
th ree warning tones. Whereas the ye llow symbols
represent a
W arning which is signalled by one warning tone. In
specific situations, messages for the driver appear in addition to the red symbols~
page 30. •
Driver information messages
Along with some particular warning/indic ator lights and
instrument cluster symbols, additional messages will
appear in the display .
Fig. 21 Sectio n of
i n strum ent c luster:
b utton
A driver information message will appear in the disp lay when, for
example :
a light bulb has burnt out~
page 36,
or if you drive off with the parking brake still engaged (pulled up)
or before you move the se lector lever in gear (automatic transmis­
sion). Driver information messages can be switched on by the driver when
a priority 1 symbo
l appears and flashes~
page 29.
Sw itc hing on th e driv e r inf orm ation m ess ag e
For example, if there is a malfunction in the engine oi l pressure, the
~ symbo l will appear in the display. If you press the CHECK button,
the fo llowing message will appear :
SWITCH O FF ENG IN E AND CHE CK OIL LE VEL
The message goes out after approximately 5 seconds. Press the
button to disp lay the message again.
[ i ] Tips
The fol lowing two messages, HANDBRAKE IS APPLIED and WHEN
S TA TIONARY APPLY FOOT BRA KE WHILE SELE CTIN G G EAR ,
cannot
be switched on again . These messages will remain in the display
until you release the parking brake or until you move the selector
l ever into a gear .•
Parking brake warning
- Release the parking brake.
If you should drive off with the parking brake still engaged, a
warning tone w ill sound to remind you to release the parking brake.
A lso, the following message will appear in the display:
HANDBR AKE IS APPLIED
The parking brake warning is activated when you drive longer than
3 seconds and faster than 3 mph (5 km/h). •

Driver information system
When a red symbol appears, a warning tone will sound consecu­
tively
three times. The symbol continues to flash until the malfunc­
tion has been repaired. If there are
more than one priority 1 malfunc­
tions, the symbols appear one after the other for about two
seconds.
[ i] Tips
• The message for a malfunction can be shown by pressing on the
left knob.
• During route guidance on vehicles with a navigation system, the
warning symbol is shown in the field above. •
Brake system malfunction
BRAKE (USA models) /
(CD) (Canada models)
A malfunction in the brake system must be repaired as
soon as possible.
When BRAKE/ (CD) (Canada models) appears in the display
and flashes, this means there is a malfunction in the brake
system. In addition to the symbol, one of the following two
messages also appears in the display:
STOP VEHICLE AND CHECK BRAKE FLUID
ABS FAULT! SEE OWNER'S MANUAL
- Pull of the road and stop the vehicle.
- Check the brake fluid level=>
page 230.
USA models: if there is a malfunction in the ABS system, the i:i
warning/indicator light illuminates along with the BRAKE system
malfunction warning/indicator light=>&.
Canada models: if there is a malfunction in the ABS system, the
warning/indicator light illuminates together with the ID brake
system malfunction warning/indicator light=>& .
& WARNING
• Always observe the warnings in=> page 212, "Engine compart­
ment", before opening the engine hood and checking the brake
fluid.
• Driving with low brake fluid is a safety hazard! Stop the car and
get professional assistance .
• If the brake system warning/indicator light illuminates
together with the ABS warning/indicator light, then the ABS
system is malfunctioning. The rear wheels could quickly lock up
when you apply the brakes. This could lead to loss of control _and
your vehicle could slide! Drive carefully to the nearest authorized
Audi dealer and have the malfunction corrected. •
Engine cooling system malfunction _t_
A malfunction in the engine cooling system must be
repaired as soon as possible.
When the _t symbol in the display flashes, then either the
engine coolant
temperature is too high, or the coolant level
is too low. In addition to the symbol, the following message
also appears in the display:
SWITCH OFF ENGINE AND CHECK COOLANT LEVEL
-Pull off the road and stop the vehicle .
Turn off the engine.
Check coolant level =>
page 228.
Add coolant if necessary => page 228.
-Continue driving only after the engine coolant
warning/indicator light goes out.