engine AUDI TT ROADSTER 2008 User Guide

Malfunction in the brak e system
USA models: If bot h, th e BRAKE wa rn ing l igh t and the .... rs warning
light come on~
page 20when the parking brake is released, there
may be a ma lfunction in the ABS, and there may a ls o be a malfunc ­
t ion in the brake sys tem it se lf~
&-
Canada models: If both, the brake warning light (Q)) and the ABS
wa rning light c ome on~
page 20w hen the parking bra ke i s
released, there may be a ma lfunction in the ABS, and there may a lso
b e a ma lf un ction in the brake sys tem itsel f~
& -
Malfunction in the electronic differential lock (EDL )
The two sys te m s EDL and ABS wor k together. The ~ warning ligh t
wi ll come on if there is a malfunct ion in the EDL system~
page 186.
See your au thorize d Aud i dea le r as soon as poss ibl e.
& WARNING
• If the P • warning light does not go out, or if it comes on while
driving , the ABS system is not working properly . The vehicle can
then be stopped only with the brakes operating without ABS support . You will not have the protection ABS provides . Contact
your Audi dealer as soon as possible .
• USA models : 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 . Lock-up of the rear wheel brakes
can 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 .
• Canada models: If both, the brake warning light (Cl) and the ABS
warning light ""' come on at the same time , the rear wheels could
lock up first under hard braking. Lock -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
appli cation •
Controls and equip ­
ment
Instruments and warning /indi cator lights
Electro-mechanical power assist t / @
If the indicator light il luminates while you are driving, there is a
m alfunc tion in th e electro -m echa nical s teering. If the i ndica to r lig ht
is show ing ~, there may be a reduction in power steering ass ist. If
t he indi cator l ig ht is sh owing ~' the re may be a total loss o f pow er
steerin g assist . T he steerin g must be inspected immediately by a
q u alified works h op ~
6,. W ith the engine not ru nning (e.g. w hen
th e car is b eing tow ed), there is a lso no power assist avai lable .
& WARNING
If there is a malfunction , the indicator light for the electro -mechan ­
ical power assist illuminates . Seek professional assistance. •
I • •

Sound system display
Fig. 8 Ce nte r di spl ay:
sou nd s ystem
If priority 1 or priority 2 faults ar e not shown by th e Au to Check
Control, the name of the radio station you are tuned to or the
frequency and the reception range are shown in the upper area of
t h e display .
When the CD is in use , the title of the track being p layed is shown .
T h e number of th e CD (CD 1 to CD6) curr ently being played is also
shown. •
Outside temperature display
Fig . 9 Ce nter di spl ay:
o utside tem pe ratur e
The outside tempe ra ture wil l be displayed when you switch on the
ignition~ fig. 9. If your vehic le has an automa tic transmiss ion , the
Con tro ls and eq uip­
ment
Dri ver in form ati on syst em
outside temperature will appear in the display only after you have
moved the selector lever into a gear (for example, when yo u shift
into
" D ") .
The snowflake symbo l a lso appears when the outs ide temperature
is below 41 °F ( +5 °C). This is to warn you, the driver, to be extra
cautious becaus e the road surfaces may be
icy . If the vehicle is at a
standstil l, or i f you are driving at a very low speed, the temperature
shown in the display might be sligh tly high er than the ac tual
outside temperature . This is caused by the heat being radiated from
the engine .
Remember , if your vehicle is equipped with air conditioning and you
change the display from °F (Fahrenhei t) to °C (Centigrade) , then the
outside temperature will automatical ly be displayed in °C (Centi ­
grade) .
& WARNING
• Never r ely e xclusive ly o n th e out side t emperature di sp la y to
determin e if a ro ad surf ace is icy or not. K eep in mind that road
s urface s, esp ecially bridge s and overpa sses, co uld be ice c overed
and slippery even at an out side temper ature above 41 °F
1+5 ° C I.
• Alwa ys re m embe r, even if th e "s nowflak e" sy mbol lic e
wa rning ) does not app ear i n the display , b lack ice cou ld be on the
road .
• Alway s re duce your speed and driv e with sp eci al c are in cold
wea ther condition s when the ch an ce of en count ering i cy road
s urf ace s in creas es.
[ i ] Tip s
When using the navigation system feature "Destination", the
outside temperature is also displayed .•
Vehicle care I I irechnical data

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 . _,,

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.
~

& 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). •

Applies to vehi cles : wi th m anua l tra nsmi ssion
Function test: manual transmission
When the ignition is switched on, the Auto-Check Control automati­
cally performs an operational check . If the functions tested are O .K .,
no message is shown in the display.
If one or more faul ts exist, the driver information disappears
approximately 15 seconds after the engine has been started and the
appropriate fault symbol appears in the display.
If malfunctions exist , this is indicat ed by r ed (prio rity
1) or yellow
(priority
2) symbols. A warning signal sounds at the same time. •
Applies to vehicle s: with autom ati c tra nsm iss io n
Function test: automatic transmission
Th e Auto-Check Con trol will automatically p erform a test each tim e
you switch on the ignition. When the selector lever in
P or N, the
following message appears in the display :
WHEN STATIONARY APPLY FOOTBRAKE WHILE SELECTING GEAR.
When you a select a different gear (for example: R, D, etc.), the
messag e will disappear and th e Auto-Check function is display ed .
If the functions tested are O.K., no message is shown in the display .
If there is a malfunction, then the malfunction message will appear
about 15 seconds after the you start the vehicle. At the same time
you will hear a warning tone.
[ i] Tips
On vehicles with automatic transmission*, the driver message
WHEN STATIONARY APPLY FOOTBRAKE WHILE SELECTING GEAR
cannot be shown again. This driver message appears in the display
only un til a gear is engaged. •
Controls and equip ­
ment
Driver information system
Red symbols
A red symbol means DANGER.
Pull of the road and stop the vehicle.
Turn off the engine.
Fig . 22 Display : engine
coolant level warning
(priority 1)
Check the malfunctioning system . Contact your autho ­
rized Audi dealer or a qualified workshop for assistance.
The red symbols mean :
BRAKE
(Ci)
BRAKE
.J_
COOLANT
'e:1:
O IL
PRESSURE
-
USA models:
Malfunction in the brake system
Canada models:
Malfunction in the brake system
Engine coolant level too low/
engine coolant tempera ture too
high
Engine oil pressure
too low
-
~ page 32
~ page32
~ page32
~ page33
Red symbols indicate a priority 1 malfunc tion - Danger!
I • •

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.

-Contact your authorized Audi dealer for assistance if
necessary.
If the engine coolant level is correct, then the radiator fan may be
the cause of the malfunction.
If the generator warning/indicator light should also illuminate
=> page 19 , then the fan belt may be damaged.
& WARNING
• If your vehicle should break down for mechanical or other
reasons, park at a safe distance from moving traffic, turn off the
engine and turn on the hazard warning lights
=> page 75, "Emer­
gency flasher A".
• Never open the hood if you see or hear steam or coolant
escaping from the engine compartment -you risk being scalded.
Wait until you can no longer see or hear steam or coolant
escaping.
• The engine compartment of any vehicle is a dangerous area.
Before you perform any work in the engine compartment, turn of
the engine and allow it to cool. Follow the warning stickers
=> page 212, "Engine compartment".
0 Note
Do not continue driving if the _F_ symbol illuminates. There is a
malfunction in the engine cooling system -you could damage your
engine. •
Controls and equip ­
ment
Driver information system
Engine oil pressure malfunction 'l=;:f.
The red engine oil pressure warning symbol requires
immediate service or repair. Driving with a low-oil-pres­
sure indication is likely to result in serious damage to the
engine.
If the ~ symbol appears in the display and flashes, the oil
pressure is too low. In addition to the symbol, the following
message also appears in the display:
SWITCH OFF ENGINE AND CHECK OIL LEVEL
Immediate actions
- Pull off the road and stop the vehicle.
- Shut the engine down.
- Check the engine oil level with the dipstick=> page 224.
Dipstick reading checks too low
- Top off oil to the proper level
=> page 225.
- Make sure that the oil pressure warning symbol ~
appears no longer in the display before you start driving
again.
Dipstick reading checks OK
- If the ~ symbol starts flashing again even though the
engine oil level checks OK on the dipstick ,
do not start
driving again and do not let the engine run at idle .
Instead, contact your authorized Audi dealer for assis­
tance.
I • •

Driver information system
[ i] Tips
• The engine oil pressure symbol 9:::r. is not an indicator for a low
engine oil level. Do not rely on it. Instead, check the oil level in your
engine at regular intervals, preferably each time you refuel, and
always before going on a long trip.
• The yellow oil level warning indication · requires oil refill or
workshop service without delay. Do not wait until the red oil pres­
sure warning symbol
9:::r. starts to flash before you respond to the
low oil level warning . By then, your engine may already have
suffered serious damage. •
Yellow symbols
A yellow symbol means WARNING.
Yellow symbols mean:
Low fuel level
Check engine oil level Engine oil sensor malfunction
-
Worn brake pads
USA models:
Speed warning 1
Canada models:
Speed warning 1
-
USA models:
Speed warning 2
-Canada models:
Speed warning 2 =>
pag
e35
=> page35
=> page35
-
=> page35
=> page35
=> page35
=> page35
-
=> page35
Dynamic headlight range con­
trol* defective => page35
Windshield washer fluid level low
=> page 35
Battery voltage too high or too
low
Defective light bulb
USA models:
Defective brake light
Canada models:
Defective brake light =>
page35
=> page36
=> page36
=> page36
Light/rain
sensor defective (auto-=> page 36
matic headlights) * defective
Adaptive Light* defective =>
page 36
Tire pressure monitoring system * => page 37
Yellow symbols indicate a priority 2 malfunction -Warning!
When a yellow symbol appears, a warning tone will sound
once .
Check the displayed function as soon as possible . If more than one
priority 2 malfunction is detected, all symbols will appear one after
the other for about two seconds.
To display driver information
As an example, the[} symbol appears in the display . If you now
press the button =>
page 12, fig. 2 ©, the following driver message
appears in the display:
PLEASE REFUEL
The driver message in the display goes out after about 5 seconds.
You can display the driver message again by briefly p ressing the
button. •