2008 AUDI TT ROADSTER 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

-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. •

Driver information system
Also see if the generator warning/indicator light illuminates
=> page 19. •
Defective light bulb warning
The defective light bulb warning tells you when a vehicle
light bulb has become defective.
If a defective bulb has been detected by the system or a light bulb
burns out, the symbol with a message appears in the display to
tell you which bulb is burnt out and where it is located. For example:
REAR LEFT TURN SIGNAL
After 5 seconds, the message disappears. If you want to recall the
message into the display, press the CHECK button.
There are three reasons why the defective bulb message would appear in the display:
• the light bulb has burnt out=> page 277.
• the fuse is "blown" => page 273, "Replacing a fuse".
• the wire connection to the light bulb is defective.
Have the bulb replaced or the connection repaired by your autho ­
rized Audi Service department.
& WARNING
• Light bulbs are pressurized and could explode while they are
being changed causing serious personal injury.
• Work with due care when handling the high-voltage section of
gas discharge (xenon) lamps*. Failing to do so could result in death
or serious injury! •
Brake light defective K: U (USA
models) / (Canada models)
In case of a malfunction or component failure, the acoustic warning
will sound and the symbol&;
l[ (USA models)/ (Canada
models) can appear.
The following electrical components should be checked, repaired or
replaced, as necessary :
• Brake light bulbs
• All wiring connections
• Brake light switch
Contact your authorized Audi dealer for assistance if necessary.
[ i] Tips
The brake light switch is only inspected as part of the functional
check after the engine is started. •
Applies to vehicles: with automat ic headlights and rain sensor
Light /rain sensor defective >
AUTOMATIC HEADLIGHTS/AUTOMATIC WIPERS DEFECTIVE
If the symbol illuminates, the light sensor has failed. For safety
reasons the low beams are turned on permanently with the switch
in
AUTO. However , you can continue to turn the lights on and off
using the light switch. In the case of a defect in the rain sensor, the
windshield wiper lever functions are still available. Have the
light /rain sensor checked as soon as possible at a dealership. •
Applies to veh ic le s: w ith Adaptive Light
Adaptive Light defective
ADAPTIVE LIGHT DEFECTIVE
•
'

Clear vision
Service position The wiper blades can be changed more easily in the
service position .
Fig . 73 Wiper lever
It is only possible to change wiper blades if you move the
w iper arms to the service position. On vehicles with the
Driver Information System , the wiper blades can only be
moved to the service or parked position via t he menu
display =>
page 27. In order to use the windshield wipers,
the hood must be completely closed.
Moving wiper blades to the service position
-When there is a risk of frost, make sure that the wiper
blades are not frozen to the windshield .
- Switch the ignition on .
- Switch the ignition off again and move the wiper lever
~ fig. 73 from position Oto 1 within 10 seconds . The
wiper arms now move into the field of view in the wind ­
shie ld.
Moving wiper blades to park position
-Make certain that the wiper arms are lying against the
windshield .
- Switch the ignition on and move the wiper lever~ fig . 73
from position Oto
1. The w iper arms w ill move back to the
park position.
I t is much easier to chang e wiper blad es if you mov e th e wiper arms
to the service position. You wil l also avoid paint damage to the hood
when working on the wip ers when they are in the service position .
0 Note
Never drive your vehicle when the windshield wiper arms are in the
service position and pulled away from the windshield . When you
drive faster than 4 mph (6 km/h) , the wiper arms automatica lly
return back to the park position and could cause paint damage to
the engine hood!
[ i ] Tips
• You can also turn on the service position, for example, if you
want to protect the windshield from icing by using a cover.
• The service position moves to
off automatically when you
operate the windshield wiper lever, or speed exceeds 4 mph
(6 km/hl. •

Replacing front wiper blades Wiper blades in good condition help keep the windshield
clear.
Removing the wiper blade
Fig . 74 Unlatching
wiper blades
Fig . 75 Removing
wiper blades
- Move the wipers to the service position ~ page 80
~ page 80, fig. 73.
- Fold the windshield wiper arm away from the glass.
- On the upper end of the wiper arm at the corrugation,
squeeze the plastic retainer together on both sides in the
direction of the arrow~ fig. 74.
Contro ls and eq uip­
ment
Clear vision
- Rotate the wiper blade in the direct ion of the arrow @
~ fig. 75 away from the wiper arm.
- Lift the wiper blade off in the direction of the arrow @.
Attaching the wiper blade
- Place the rounded end of the wiper onto the end of the
wiper arm in the
opposite direction to the arrow @
~ fig. 75.
- Swing the wiper in the
opposite direction to the arrow @
onto the wiper arm.
- Squeeze the corru gation on the wiper until you hear it
click in the wiper arm.
- Fold the wiper arm back onto the windshield.
Switch the ignit ion on and move the wiper lever down
briefly ~ page
80, fig. 73. The wiper will move back to the
park position .
The front wiper blades measure left side 23 .20 in. (590 mm) and
right side 18.50 in. (470 mm) in length,
Clean your wiper blades regularly with a windshield washer solution
to prevent streaking. If the blades are
very dirty, for example with
insects , carefully clean the blades with a sponge or a soft brush.
If the wiper blades begin to streak the windshield, this could be
caused by residue left on the windshield by automatic car washes.
F ill the windshield washer container with a special solution avail­
able at your authorized Audi dealer to remove the residue.
Be sure to inspect the condition of your wiper blades regularly. For
safety reasons, replace your wiper blades once or twice a year if
necessary. See your authorized Audi dealer for replacement blades . .,
Vehicle care I I Technical data

Clear vision
& WARNING
• Clea n your wiper blade s regu larly w ith a w indshi eld w asher
s oluti on t o prev ent stre aking . If the wiper blade s are very dirt y, for
exa mpl e wit h inse cts, c arefull y cle an th e wi per blades w ith a
sponge or a soft bru sh .
• For yo ur safety , you should rep lac e th e w iper b lade s on ce or
twi ce a ye ar. S ee y our auth orized Audi de aler f or replacement
b lad es.
0 Note
• The wiper blades may on ly be changed=> page 80 in service
posit ion! Otherwise, you risk damaging the paint on the hood or the
windshield wiper motor .
• To prevent damage to the wiper system:
-Always loosen blades which are fro zen to the windshield
before operating wipers.
- Do not use gasoline , kerosene , paint th inner , or other solvents
on or near the wiper blades .
- Do not attempt to move the wipers by hand.
[ i ] Tip s
Commercial hot waxes applied by automatic car washes affect the
cleanab ility of the g lass surface .
• The front wiper blades are different lengths; the blade on th e
driver's side is longer. •
Mirrors
Manual glare dimming
Standard setting
- Move the small leve r !located on the bottom edge of t he
m irror) to the front.
Anti -glare setting
Move the small lever (located on the bottom edge of t he
m irror) to the rear. •
Applies to vehic les: wit h autom atically dimm in g inside rearview mirro r
Automatically dimming inside mirror
The automatic dimming function can be turned on and off
if required.
Disabling auto dimming
F ig . 76 Insid e rea rview
mir ror, d ig ital co m pa ss
activate d: au to
d imm in g on /off butt on
an d in dicator light
Press button @ briefly, -the green indicator light@
goes out.