2008 AUDI TT ROADSTER check engine

_______________________________________________ C _o_ n _ s_u _ m_ e_ r_l_n _f_o _ r_ m_ a_ t _i _o _ n __ _
workshop personne l in order to assure proper performance, reli ­
abil ity and sa fe ty of the vehicle a nd i ts many sys te m s.
I mproper maintenance, adjustments and repairs can impair the
operation and reliabil ity of your vehicle and even void your vehicle
war ra nty. T here fore, proof o f serv ic ing in accorda nce with the main ­
tenance schedule may be a condition for uphold ing a possible
war ra nty claim made withi n th e warranty per iod .
Above all, operat ional safety can be adverse ly affected, creating
unnece ssary risks fo r you and you r passengers .
If in doubt about a ny servici ng, have it do ne by your authorized Aud i
dea ler or any other properly equipped and qua lified workshop. We
str ongly u rge you to give your auth orized Audi dealer the oppo rtu ­
nity to perform al l scheduled maintenance and necessary repairs.
You r deale r has the facil ities, origi nal par ts and trained special is ts
to keep your vehic le running proper ly.
Performing limited maintenance yourself
T he fo llow ing pages describe a limited numbe r of procedures which
can be perfo rme d on you r vehicle wi th ordi nary too ls, should the
need arise and trained personne l be unavailab le. Before performing
any of these proced ures, always thor oug hly read a ll of th e appli­
cable text and carefu lly fo llow the instructions given. Always rigor ­
ously observe the
WARNINGS provided .
Before you check anything in the engine compartment , alway s read
and heed all WARNINGS:::>
& and:::> & in "Wo rking in the engine
compartment" on
page 220.
& WARNING
• Ser ious persona l injury may occur as a result of improperly
performed maintenance , adjustments or repairs.
• Always be e xtremely careful when working on the vehicle .
Always follow commonly accepted safety practices and general
c ommon sense . Never ri sk per sonal injury .
Controls and equip­ ment Safety first Vehicle operation
& W
ARNING (continued )
• Do not attempt any of the maintenance , checks or repairs
described on the following pages if you are not fully familiar with
these or other pro cedures with respect to the vehicle , or are uncer­
tain how to proceed.
• Do not do any work without the proper tools and equipment.
Have the necessary work done by your autho rized Audi dealer or
another properly equipped and qualified workshop .
• The engine compartment of any motor vehicle is a potentially
hazardous area . Never reach into the area around or touch the
radiator fan . It i s temperature controlled and can switch on
suddenly -even when the engine is off and the ignition key has
been removed . The radiator fan switche s on automatically when
the coolant reaches a certain tempe rature and will continue to run
until the coolant temperature drops .
• Always remove the ignition key before anyone gets under the
vehicle.
• Always support your vehicle with safety stands if it is neces­
sary to work underneath the vehicle. The jack supplied with the
vehicle is not adequate for this purpose and could collapse
causing serious personal injury .
• If you must work underneath the vehicle with the wheels on
the ground, always make sure the vehicle is on level ground , that
the wheels are always securely blocked and that the engine
cannot be started .
• Always make sure the transmission selector lever (automatic
transmission) is in "P" (Park position ) (automatic transmission ) or
Neutral (manual tr ansm ission) and the hand brake is firmly
applied.
• Chang ing t he e ngine sett ings wi ll a dverse ly affect em ission
levels. This is detrimenta l to the environment and increases fuel
co nsu mp tion.
Vehicle care Do-it-yourself service Tec hn ica l da ta

___ A---" lp_h_ a_b_ e_ t_ i_ c _ a_ l_ in_d_ e_x ______________________________________________ _
A
A/C operation
Climate control
ABS 102
See Anti -Lock Brake System . . . . . . . . 189
Accessories . . . . . . . . . . . . . . . . . . . . . . . . 296
Acoustic park assist rear .. .... .. ... ... ....... .... .. .
Acoustic parking system
Adaptive Light 109
109
defective . . . . . . . . . . . . . . . . . . . . . . . . 36
Adaptive light . . . . . . . . . . . . . . . . . . . . . . . 72
Adding Engine coolant ... .... ........... 228
Engine oil ....................... 225
Windshield washer fluid . . . . . . . . . . 236
Additiona l accessories .. ...... ...... . 296
Additives Engine oi l ....................... 225
Adjustable steering column .......... 105
Adjusting front seats ... .. .... .... .... 87
Adjusting steering column ...... .. ... 105
Adjusting the seats ...... .... ........ 89
Advanced Airbag System Children ........................ 169
Components .. .................. 153
Front airbags ......... .... ...... . 151
How the components work together 154
Monitoring . . . . . . . . . . . . . . . . . . . . . . 157
Weight -sensing mat .. .. .. .... .... 169 Air distribution
Climate control
Air recirculation mode Climate control ...... .... ... .. .. .
Air vents Climate control
Airbag 101
102
102
Warning/indicator lights ..... ...... 19
Airbag system . . . . . . . . . . . . . . . . . . 146, 165
Care ... ........... .... .... ...... 160
Child restraints ............ .... .. 170
Components (front airbags) .. ... ... 153
Danger of fitting a child safety seat on the front passenger seat . . . . . . . . . . . . 147
Disposal . . . . . . . . . . . . . . . . . . . . . . . . 160
Front airbags ................. ... 150
How do the front aiirbags work? . . . . 155
How many airbags does my vehicle have?
153
Important safety instructions on the knee airbag system .......... ....... . 163
Important things to know ......... 146
Indicator light .. ..... ....... ..... 157
Knee a irbags .. ...... ......... ... 161
Monitoring . . . . . . . . . . . . . . . . . . . . . . 157
PASSENGER AIR BAG OFF light ... .. 157 Alternator
See Generator . . . . . . . . . . . . . . . . . . . . 19
Anti -freeze
See Engine coolant system ...... .. 227
Anti-glare inside day-night mirror ...... 82
Anti-Lock Brake System .............. 189
Anti -lo ck brake system
Warning/indicator lights . ...... .... . 20
Anti-Slip Regulation System (ASR) How the system works . . . . . . . . . . . . 186
Anti-theft systems Anti-Theft Alarm System ........... 56
Electronic immobilizer ............. 49
Ashtray .............. ........... .... 94
ASR How the Anti-Slip Regu lation System
works ......................... 186
Asterisk What does it mean when something is
marked with an asterisk? ... .... .... 6
Audi magnetic ride .... .... ..... .. 17, 112
Description .... .... .... ...... .... 112
Indicator light .... .... ............ 17
Audi Service Repair Manuals and Literature .
294
Repairs .. .... ....... ...... .... .. 160 Auto Safety Hotline . .... .... .... ..... 136
Side airbags . ........ ....... ..... 164 Auto-Check Contro l ................... 29
When must the system be inspected? . . . Automatic transmission ............ 31
157 Auto-Check -Control
All Wheel Drive . . . . . . . . . . . . . . . . . . . . . 191
Alloy wheels . . . . . . . . . . . . . . . . . . . . . . . 207 Manual
transmission
Automatic belt retractor 31
141
air conditioning All-wheel drive Automatic car wash
Temperature .. ............ ... ... 100 Winter tires ..................... 254 See Washing .................. .. 201

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Automatic folding top
closing .. .... .... ....... ..... ... . 62
opening ... ... ... .... .... ... .... .. 62
Automatic headlight control .. ......... 70
Automatic transmission .. .... .... .... 113
Driving Notes ......... .... .. ..... 114
Emergency program .... ...... .... 119
Emergency release . . . . . . . . . . . . . . . 120
Ignition key safety lock . ...... ..... 106
Kick -down .. ... .. .... .... ...... .. 117
Launch Control Program ........... 117
Selector lever lock ........ .... .... 116
Selector lever positions .... ..... .. 115
Tiptronic ... .. .... .... ... .... .... 118
Tiptronic controls on the steering wheel
119
Average speed ... ... ..... ... .... .... . 39
Avoid damaging the vehicle ..... .... . 194
B
Battery .. ... .... .... .... ..... .. 231, 234
Battery location inside the engine
compartment . ...... .... .... 221, 222
Charging ........................ 235
Checking battery acid level .. .. 234, 235
Connecting ...................... 231
Disconnecting .... .... .... ...... . 231
Important warnings when working on the
battery ........................ 232
Replacing the battery .. .......... . 231
Winter operation ................. 231
Working on the battery ... .... .... . 232
Battery voltage . .... .... .... ... .... .. 35
Controls and equip­
ment Safety first
Before
driving . .... . .. ... ... ........ 128
Bi -Xenon headlights .................. 75
Blended gasoline . ... .... .... .... .... 214
Body cavity sealing ...... ...... ... .. . 207
Booster seats .. ...... .... .... .... ... 175
How do I properly install a booster seat in
my vehicle? . .......... .... ... .. 175
Safety instructions . .... .... ... .... 175
Brake fluid Changing the brake fluid .. ........ 230
Checking the brake fluid level ...... 230
What is the correct brake fluid level? 230
What should I do if the brake fluid warning
light comes on? ... .. .... .... .... 230
Brake fluid reservoir . ...... ...... .... 230
Brake light defective ........ .... .... .. 36
Brake system ... ... .. .... ........ 32, 230
Anti-lock brake system .. ....... .... 20
Brake Assistant ........ ... .. .... . 189
Brake fluid ................... .... 230
Brake f luid specifications for refill and
replacement .... ...... ...... .... 230
Brake pads ... ... .... .... .... .... 193
General information .............. 188
How does the moisture or road sa lt affect
the brakes? ..... ...... ...... .... 188
Warning/indicator lights .. ...... .... 20
Break -in period ...... ...... ... .. .... 192
Brake pads ...................... 193
Tires .. .... .... ... .... .... .... ... 192
Bulbs .... ... .... .. . .. .............. 277
C
California Proposition 65 Warning . .... 221
Battery specific .... ... .... .... .... 234
Capacities ... .... ........ ... .... .... 291
Car care ... .... ... .. .... .... .... .... 200
Interior ..... .... .. .... ........... 208
Plastic and vinyl .................. 204
Weatherstrips ..... .... ...... ..... 206
Care of exterior .. .... ....... ........ 200
Cargo area
See Luggage compartment . ... .... . 135
Catalytic converter ...... .... .... .... 193
CD changer ..... .... .... .... .... ..... 96
Certification ...... ... .... ...... ...... 45
Changing a flat tire ... .... .... ....... 267
Changing engine oil ............. .... 226
Chassis Undercoating .... ..... ... .... .... 207
See also Audi magnetic ride .... .... 112
Check ing
Battery acid level ......... ... . 234, 235
Engine coolant level .............. 228
Checking tire pressure . ... .... .... ... 244
Child restraint
Danger of using child restraints in the front seat .... ... .... .... .... ... 147
Child restraints Where can I get additional information
about chi ld restraints? ... ........ 180
Child safety ...... .... ... .... ... 168, 173
Booster seats .... .... .... .... ... . 175
Convertible child safety seats ... ... 174
Vehicle operation Vehicle care Do-it-yourself service Technical data

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Dimensions ... .. ...... . .... .. .. .... 290 Electronic differential lock (EDU
Dipstick Reading the dipstick properly
Direct Shift Gearbox 224
Emergency release . . . . . . . . . . . . . . . 120
Distance ........ .... ....... ...... ... 40
Driver information system . .... .... ... . 22
Digital speedometer ... .. .... ...... 24
Fuel filler cap ...... ..... .... .... .. 24
Menu button ..................... 28
Menu display ..................... 27
Open door or rear lid warning . ......
24
Outside temperature display .. .... .. 23
Parking brake warning ............. 30
red symbols .. ............. ....... 31
Setting ...... .... ... .... ..... .. .. 28
Sound system disp lay ............ .. 23
Text messages . .... .... .... .... ... 30
Driver seat See Seating position . ............. 130
Driving Run -flat tires . .... .... ....... .... . 258
Dr iving messages ... ..... .. ... .... ... 30
Driving safely . . . . . . . . . . . . . . . . . . . . . . . 128
Driving time ... .... ... ..... .... .... .. 39
Duplicate key .... .... ...... ....... ... 47
Dust filter . ....... .... .... ........ ... 99
E
Electro -mechanical power assist ... 21, 190 How the system works
............ 186
Warning/indicator lights ............ 20
Electronic immobilizer ...... ... .. .. 14, 49
Electronic power cont ro l
EPC warning/indicator light ..... .... 17
Electronic Stability Program .......... 184
Electronic stabilization program (ESP! Warning/indicator lights ........ .... 18
Emergency flasher Warning/ind icator lights .. .... ...... 19
Emergency flashers .................. 75
Emergency locking . ... .... .... ... .. .. 54
Emergency operation Folding top ....................... 64
Rear lid .. .... ....... .... .... .... . 56
Emergency release for selector lever ... 120
Emergency starting ........ ... .... ... 278
Emergency towing .. ............. .. . 281
Engine Cecking and filling locations ... ... . 222
Checking and filling locations ...... 221
Coolant ... .. .... .... ..... .. ... .. 227
Hood . ..... .. ... ... .. .... ..... .. 219
Starting ..................... 106, 107
Starting with jumper cables ........ 278
Stopping .... .... ...... ...... ... . 107
Engine compartment .... ...... ...... 221
Safety instructions ................ 220
Working in the engine compartment 220
Engine coolant sys tem ..... .... ...... 227
Adding coolant .... .... ..... ... ... 228
Checking the engine coolant leve l .. . 228 Radiator fan
... .. .. .. .... .... .... 229
Temperature gauge ................ 13
Engine cooling system Malfunction ... .. .... .... .... ..... 32
Engine data .. ............... .... ... 291
Engine hood Closing .. ... ........ .... ... ..... 220
How to release the hood ... ... ... .. 219
Engine oil . ...... .... .... ... .... .... 222
Adding .... ....... .... ... .... .... 225
Additives .. .... .... ... .... .... ... 225
Changing . .... .... .... ..... ..... . 226
Checking the engine oi l leve l ... .... 224
Indications and conditions requiring extra checking .... .... .... .... .... ... 224
Oil consumption . ...... ..... .. .... 224
Oil grades . ....... .... .... ....... 222
Pressure malfunction .............. 33
Recommended oil check intervals ... 224
Specification and viscosity ......... 222
Engine oi l leve l .. .... .... ... .... .... . 35
Engine oil sensor defective .... ...... .. 35
Environment Break-in period ..... .. ... .... .... . 192
Catalytic converter .......... ... .. . 193
Disposing of your vehic le battery .. . 231
Driving at high speeds . ...... .... . 194
Dr iving to minim ize pollution and noise .
194
Fuel .. .... .... .... ... .... .... ... 216
Fuel economy ......... ........ ... 194
Leakage from your vehicle . .... .... 220
Letting the vehicle stand and warm up ..
195
Controls and equip­ ment Safety first Vehicle operation
Vehicle care Do-it-yourself service Technical data

__ _.!::.A~IEp~ h~a~ b~e~ ti~c~a~ l~ i~ n ~d ~e:,: x~ -------------------------------------------
Run-flat tires 257
258
257
259
Driving
... ..... .. .... .... ...... .
Introduction . ....... ..... .... ... .
Replacing defects parts .... ...... .
s
S tronic 113
Driving Notes .. .... .... .... .... .. 114
Emergency program . . . . . . . . . . . . . . 119
Kick -down . . . . . . . . . . . . . . . . . . . . . . 117
Launch Control Program .... .. .... 117
Selector lever lock . . . . . . . . . . . . . . . . 116
Selector lever positions . . . . . . . . . . . 115
Tiptronic . . . . . . . . . . . . . . . . . . . . . . . . 118
Tiptron ic controls on the steering wheel .
119
SAFE ....... ... ..................... 14
Safe driving habits . ...... .... .... ... 128
Safety belt position . . . . . . . . . . . . . . . . . 142
Safety belts worn by pregnant women 143
Safety belt tens ioner
Service and disposal ... .... .. . .... 145
Safety belt warning light ...... ... . 19, 137
Safety be Its . . . . . . . . . . . . . . . . . . . . . . . . 141
Cleaning .. ........ ....... .... ... 212
Danger to passengers who do not wear a safety belt . . . . . . . . . . . . . . . . . . . . . 139
Fastening . . . . . . . . . . . . . . . . . . . . . . . 141
Improper ly worn ...... ........ ... 144
Not worn . . . . . . . . . . . . . . . . . . . . . . . 139
Safety belt position . . . . . . . . . . . . . . . 142
Safety instructions . . . . . . . . . . . . . . . 140 Securing child safety seats
..... .. .
Special considerations for pregnant women . .... ....... ...... ..... .
Tensioners ......... ... .... ..... .
Unfastening . ...... .... .... .... . .
Warning /indicator light .... .... .. .
Why YOU MUST wear them ....... . 177
1
43
144
143
137
137
Worn properly . . . . . . . . . . . . . . . . . . . 139
Safety compliance sticker ......... ... 288
Safety equipment .... ...... ... .. .... 128
Safety features for occupant restraint and
protection . . . . . . . . . . . . . . . . . . . . . 128
Safety guidelines Seat adjustment .................. 87
Safety instructions Engine compartment ....... ... ... 220
for booster seats . . . . . . . . . . . . . . . . . 175
for using child safety seats ...... .. 171
for using convertible child seats .... 174
for using infant seaits ............. 173
For using safety bel ts . . . . . . . . . . . . . 140
Monitoring the Advanced Airbag System
159
Safety lock Ignition key, automatic transmission 106
Seat adjustment Driver's seat . . . . . . . . . . . . . . . . . . . . . . 87
Front passenger's seat . . . . . . . . . . . . . 88
Front seats . . . . . . . . . . . . . . . . . . . . . . . 87
Head restraints . . . . . . . . . . . . . . . . . . 132
Head restraints, front seat ...... .... 92
Lumbar support .. ... .. ........ .... 91
Manual controls ..... ... ....... ... 88 Power
seats . . . . . . . . . . . . . . . . . . . . . . 89
Safety guide lines .. .... .... .... .... 87
Seat position Incorrect seat position ... .... ... .. 133
Seating capacity .. .... ....... .... ... 137
Seating position Driver ...................... .... 130
Front passenger ................. 131
How to adjust the front seats ... ... 131
Occupants
Seats 130
Number of seats ... .... ... ... .... 137
Selector lever positions
Automatic transmission .... .... ... 115
Service and disposal Safety belt tensioner .... .... ...... 145
Serv ice interval disp lay .... .... .... .. . 25
Service position for windshie ld wipers .. 80
Set menu ........................... 28
Set/Check button . . . . . . . . . . . . . . . . . . . . 15
Setting Date display
Digital clock
Side airbags .
. .. .. .... .... .... .... 13
13
Description ...................... 164
How they work . . . . . . . . . . . . . . . . . . . 165
Ski bag .. .... .... .... .... ... .... .... 93
Snow chains ..... .... .... ... .... ... 255
Sockets ............................. 95
Soft top
Care and cleaning ...... .... .... .. 203

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Sound system display
Driver info rma tion system .... .... .. 23
Speed rating letter code ........... ... 251
Speed warning 1 . .... ...... ... .. .... . 35
Sp eed warning 2 . .... .... ... ... ... .. . 35
Speed warning system ... .... .. .. .... . 37
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . 14
Starting assistance ...... .... ...... .. 279
Starting the engine .. .... .... ... . 106, 107
What should I do if the engine does not
star t? ........ .... .... ... .. ... . 10 7
Stee l wheels .... ....... .... .. . ..... 206
Steering
See Electro-mechanical power assist 21,
190
Steering co lumn
Adjusting .... ... .... .... ...... .. 105
Locking the steering ... .. .... .... . 106
Steps fo r determining co rrect load limit 247
Stopping the engine ...... ....... .... 107
Storage . .... .... .... .... ... .... .... . 95
Compartment in the front seats . .... 96
Cup holder ... .... .... ......... ... 94
Glove compartment ...... .... .... .. 96
Sun visors .. .. .. ..... ... ..... .. ..... 77
Switches Emergency flasher ..... .. .... .... .. 75
T
Tachometer ... .. .... .... ... .... .... . 12
Tank flap
Un locking the fuel filler flap by hand 218
Controls and equip­
ment Safety first
Technical
modifications ..... .... ..... 297 Tires and wheels
Tempera ture ............ ... .... .... 100 Checking tire pressure .
.... ...... . 244
The firs t 1,000 miles ( 1,500 kml and Co
ld tire inflation pressure . ... ... .. 242
afterwards ... .. .. .. .... .... .... 192 Dimensions
.. ... .... ... .. .... .... 249
Tightening whee l bolts ... .... .... .... 267 General
notes ...... ... .... ...... . 238
Tire mobility system .... ....... .... .. 263
Tire pressure .... .. ...... .... ....... 244 G
lossary of tire and loading terminology
239
New tires and wh eels . ....... .... . 249
Tire pressure monitor ing system ...... . 42
Changing wheels ........... .... ... 44
Declaration of conform ity . .... .... .. 45
Learning process . ..... ... .... .... . 44
Loss of air pressure ........... .. 17, 43
Malfunctions ... .. .... .... .... ... . 45
Sensors ........... ... .... ....... 251
Storing tire pressures ............. . 44
Tires and wheels ...... .... .... ... 251
Valves ....... .... .... .... .... ... 25 1
Warning light ..... .. .... .... .... .. 37
Tire repair kit ... ... ...... .... .... ... 263
Tire service life ........ .... ... .... .. 248
Tires .... .. . ... ... ................. 238
Replacing .... .... .... .... ... 249, 251
run -flat .. .... ... .... .... .... .... 257
S ervice lif e ..... .... ... .. .... .... 248
speed ra ting let ter code ..... .. ... . 251
Tire manufacturing date . .... ...... 251 Replacing
..... .. .... .... ..... .. . 250
Snow chains ...... .... .. . .. .. .... 255
Ti re pressure monitoring system .... 251
Tires and vehicle load limits ... .... . 246
Wheel bo lts ... .... .... ... .... .... 256
Winter tires ... .... .... ....... .. .. 254
Ti res/Wheels
Low aspect ratio tires . .... ...... .. 256
Tire mob ility system ..... .. .... ... 263
Tire pressure mon itoring system .. 17, 42
Tire repair kit ................ .... 263
Tool kit ..... .... ... .. .... .. .... .... 262
Touch -up paint ... .. .... .... .... .... 205
Towing Front eyelet ... ... ..... ... .... .... 281
Rear eyelet ... .... .... .... ....... 282
Tow truck procedures .. ...... .... . 281
Trailer towing .......... .. ...... .... . 196
Tire specifica tions . ...... ... .... .. 250 Transmission
Tread depth ..... .... ...... .. .... 248 6
-speed manua l transmission ...... 113
Uniform tire quality grading ... ..... 253 S tronic transm
ission ............. 113
Winter tires .... .... ... .... ....... 254 Transport Canada
........ .. .. ....... 293
Tires and vehicle load limits ... ....... 246 Tread
Wear Indicator (TWI) ... .... .... . 248
Vehicle operation Vehicle care Do-it-yourself service Technical data