sensor AUDI TT COUPE 2009 Owners Manual

Driver inf orm atio n syst em
Warnings and symbols
Red symbols
A red symbol means DANGER
- Pull of the road a nd stop t he vehicle .
- Turn off the engine.
- Check the malfunctioning system. Contact your autho -
rized Audi dea ler or a qua lified workshop for assistance .
BRAKE

-
USA models:
Malfunction in the brake system => page 33
Ca
nada m odels : => page 33
Malfunction in the brake system
Engine coolant level too low/
=> page 34
engine coolant temperature too
high
Engine oil pressure too low
=> page 35
When a red symbol appears, a warning tone will sound three times
in succession. The symbol continues to flash until the malfunction
has been repaired . If there is
more than one malfunction, the
symbols appear one after the other for about two seconds.
[ i ) Tip s
• 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 symbo l is shown in the field above .•
Yellow symbols
A yellow symbol means WARNING .
Low fuel level => page 35
l!check engine oi l level => page35
-
Engine oil sensor malfunction => page 35
-
IIWorn brake pads => page36
USA model s: => page 36 Speed warning 1
IIC an ada model s:
Speed warning 1 => page36
--
USA mod els: => page 36 Speed warning 2
C anad a m od els: => page 36 Speed warning 2
Dynamic headlight range con -
=> page 36 trol* defective
Winds hield washer fluid level low
=> page36
Battery voltage too high or too => page 36 low
Defective light bulb
=> page 36
U SA mod els: => page 36
Defective brake light
C an ada m od els: => page36
Defective brake light

Light/rain sensor defective (auto-~ page 37
matic headlights)* defective
Ad aptiv e Li ght* def ective
~ page37
Tire pressure monitoring system*
~ page 37
When a yel low symbol appears, a warning tone wil l sound once.
Check the displayed function as soon as possible . If more than one
malfunction is detected, all symbols wil l appear one after the other
for about two seconds .•
Driver info rmation
In addition to the warning/indicator lights and the
symbols in the instrument cluster display, driver informa­ tion is displayed.
F ig . 21 S ectio n of
instrum en t c luster :
Set/C hec k butt on
Driver information appears in the display when a defective light
bulb is reported by the defective light bulb warning ~ page 36,
when the brake pads are worn and before you engage a gear on
vehicles with S tronic .
In addition, driver information may appear when a red symbol
flashes in the driver disp lay .
Con tro ls and eq uip­
ment
Dri ver in form ati on syst em
To d is pl ay Driver inf orm ati on
As an example, the press the button~ fig. 21 , the following driver message appears in
t he display :
Switch off engine and che ck oil level
The driver message in the display goes out after about 5 seconds.
You can display the driver message again by br iefly pressing the
button. •
Brake system malfunction
BRAKE (USA models) /((D) (Canada models )
The indicator light flashes if the brake fluid level is t oo
low, if there is a malfunction in the ABS system or when the parking brake is engaged .
If the BRAKE / parking brake released, there is a ma lfunction in the brake
s y stem. In addition to the symbol , one of two messages
appears in the display:
STOP Vehicle and check brake fluid
ABS FAULT! SEE OWNER'S MANUAL
- Pull off the ro ad an d stop the vehicle.
- Obtain professional assistance.
USA models: if there is a malfunction in the ABS system, the
warning/indicator light i llumina tes along with the BRAKE system
malfunction warning/indicator light~&.
Canada models: if there is a malfunction in the ABS system, the
warning/indicator light i llumina tes together with the CCD> brake
system malfunction warning/indicator light~& .
Vehicle care I I irechnical data

Engine oil pressure malfunction 9=;r;
The red engine oil pressure warning symbol requires
immediate service or repair.
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
- Pull off the road and stop the vehicle .
- Shut the engine down.
- Check the engine oil level~
page 221.
-Contact your authorized Audi dealer for assistance if
necessary .
Engine oil level too low
If the engine oil level is too low, top off oil to the proper level
=>
page 222.
Engine oil level OK
If the ~ symbol starts flashing again ev en 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 assistance .
[ i J Tips
• The engine oil pressure symbol ~ 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
~ starts to flash before you respond to the
Controls and equip ­
ment
Driver information system
low oil level warning = . By then, your engine may already have
suffered serious damage. •
Fuel supply too low Jl
When the L symbol illuminates, this means there are about 2.6
gallons
(10 liters) of fuel left in the fuel tank . Time to refuel!
=>
page 212.
If the symbol lights up , even when there is ample fuel in the tank,
and the text
Tank system malfunction! Please contact workshop
appears in the display, there is a fault in the system. Contact a qual­
ified workshop to have the fault rectified. •
Checking the engine oil level .d'" ..
Please add max. 1 qt of engine oil!
If the symbol comes on, add 1 quart (1 liter) of oil at the next
opportunity=>
page 222. •
Checking the engine oil level -1.
When the _ symbol illuminates, check the engine oil level as soon
as possible =>
page 221. Top off the oil at your earliest opportunity
=>
page 222. •
Engine oil sensor defective • ...
If the symbol illuminates, contact your authorized Audi dealer
and have the oil sensor inspected. •
I • •

There are three reasons why the defective bulb message would
appear in the display:
• The light bulb has burnt out=>
page 278.
• The fuse is "blown"=> page 274, "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 i( r (USA
models)/ (Canada models)
In case of a malfunction or component failure, the symbol
(USA models)/ (Canada models) can appear . The following elec­
trical 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 .•
Controls and equip ­
ment
Driver information system
Ap plies to veh ic les : w it h auto matic headli ghts
Light/rain sensor defective U
The indicator light indicates a defect in the automatic
headlights/automatic wiper system.
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 an authorized Audi
dealer. •
Applies to v ehi cle s : with Ad aptive Light
Adaptive Light defective " )
Adaptive light defective
When this symbol l-illuminates, it means that Adaptive Light is
defective. Go to a qualified workshop to have the headlights or the
control unit for the Adaptive Light repaired. •
Applies to veh ic les : wi th tir e pr essu re m on it o ring sys tem
Tire pressure monitoring system
Tire pressure that is too low must be corrected as soon as
possible.
If the O symbol flashes for about one minute after the igni­
tion is switched on and then remains on, there is a malfunc­
tion in the system. Consult the nearest authorized Audi
dealer as soon as possible.
Additional information about the tire pressure monitoring system
can be found:=> page 253. •
I • •

Clear vision
Ap plies to vehicles: with light senso r package
Sensor activated head and tail light control
In the "AU TO" position light sensors swit ch the he ad and
t a il lights on and off.
F ig . 40 Instru ment
pan el: light switch in
AUTO po siti on
T he se nsor-activated low beams have the same c haracteris­
t ics as the headlig hts=>
page 51.
Activating
- Tur n th e lig ht s witch => fig. 40 t o positi on AUTO.
Deactivating
- Turn t he light swi tch to position 0 .
In the switch position AUTO the automatic head -and taillight
control
i s activated . The correspo nding symbol on the light swi tch
is lit .
With automatic head lights, the high -beam function is also avai lab le,
bu t with one restrict io n: If you have not switched the h ig h beams
back to low beams during automatic headlight operation (for
example, afte r driving through a tun nel), on ly the low beams come
on the next time automatic headlights are switched on. To use the
h igh beams, you first have to pull the high beam lever back and then
push the lever forward again. Parking
lights, headlights, fog lights and the rear fog light can be
swi tch ed on manually using the ligh t switch ~
page 51.
Light sensors located in the inside mirror housing and stem
constantly check the light conditions surrounding the vehicle. If
am bie nt brightness falls below a facto ry set value (e.g. wh en driv ing
into a tunnel), the head -and tai llights inc luding the license p late
ill um inat ion are automatica lly t urn ed on. When ambient br ightness
increases again, the external lights are turned off again~&.
Light sens or malfunction
If there is a light sensor malfunct ion, the symbol comes on in the
display . For sa fety reasons, the low beams are turned on perma­
nent ly with the switch in
AUTO . However, you can continue to turn
the lights on and o ff using the light swi tch . Have the light sensor
checked as soon as possible at a dealership .
& WARNING
• Automatic head- and taillight control is only intended to ass ist
the driver . This feature doe s not relieve the dr iver of hi s re spon si­
bil ity to check the headlights and to turn them on manually
ac cording to the current light and vi sibility conditions. For
e x ample , fog and rain cannot be detected by the light sensors .
Con sequently , always switch the headlights
io on under thes e
weather conditions and when driving
in the dark .
• Crashe s can happen when you cannot see the road ahead and
when you cannot be seen by other motor ists .
• Alway s turn on the headlights so that you can see ahead and
so that others can see your car from the ba ck .
[ i ] Tips
• I n the AUTO mode, the low beams are turned off when the igni ­
t ion is turned o ff. The remaining lights are turned o ff when the key
is taken out of the ignition lock. _.,

• Do not attach stickers to the windshie ld in front of the sensors as
this can disable the automatic head -and tail light control and the
automatic glare -dimming of the rearview mirror(s) .
• Always o bserve the spec ific loca l regu la tions f or your area when
to use your lights .
• I n the event of a light sensor mal function, the d river informa tion
display will show the symbol . If a light sensor malfunct ion is indi ­
ca te d , you must use the ligh t switch to turn the low beams on and
off .•
Daytime running lights (DRL ) (USA models )
The daytime running ligh ts are tu rne d o n auto maticall y
w hen t he ignit ion is s witche d on.
Activating functions
Fig . 41 Sw itch for
daytime running lights
- Move the right thumbwhee l@ "DR L" ~ fig. 41 to posi ­
t io n
(D .
Deactivating functions
- Mov e th e rig ht thum bwh eel "DR L" to posi tion @ .
Con tro ls and eq uip­
ment
Clear vision
T he daytime running lights can be turned on or off using this func ­
t ion. If the f unc tion is active, the dayti me r unning ligh ts are turn ed
on automatically when the ignition is switched on .
The daytime running lights are activated
only when the light switch
=> fig . 4 1 @ is at the O or AUTO* position .
& WARNING
Never use daytime running lights to see where you are going . They
are not bright enough and will not let you see far enough ahead for
s afety , e speci ally at dusk o r when it is dark . Be aware of changes
in outside light conditions when you are driving and respond by
sw itching on your low beams
io.
0 Note
Alway s be aware of change s in outside light conditions while you
a re dr iving. Respond in time to fading daylight by turning the light
s witch to position
io (or "AUTO" if your car is equipped with this
feature)
to turn on your headlights .•
Daytime running lights (Canada models only)
W hen you turn on the ig nit io n the daytime running lights
will come on automatically.
The daytime running lights are activated only when the light switch
@ =>fig. 41 is e ither at the
O o r the :oo: position . When the ignition
is switched on, there is a difference between vehicles with bi -xenon
lig hts and ha logen lamps :
• On vehicles with bi -xenon lights only the daytime running lamps
in the headlights will c ome on.
• On vehicles with halogen lights the front fog lights, side marker
lights and tail ligh ts come on automatica lly
~
Vehicle care I I irechnical data

Front fog lights }0
Use the light switch to turn on the front fog lights.
Fig. 43 Fog light acti­
vation : light switch
position on vehicles
WITHOUT sensor light
Switching on the front fog lights }D
-Do not turn the light switch -'ti- -~ fig. 43 toward the fog
light symbol
- Turn the light switch to
~oo: or to !D.
- Pull the light switch to the first stop G).
When the front fog lights are on, the symbol }O next to the light
switch will illuminate.•
Contro ls and eq uip­
ment
Clear vision
Applies to veh icles: with Light se nso r package
Coming home /leaving home function (}J
The coming home/leaving home function switches on the
external lights on a vehicle parked in the dark to illumi ­
nate the surroundings.
Activating the function
Fig. 44 Dashboard
detail : coming
home/leaving home
switch beside lig ht
switch
- Tap the switch QJ ~ fig. 44. The indicator light in the
switch illuminates .
Deactivating the function
-Tap the switch QJ. The indicator light in the switch goes
out.
The coming home/leaving home function is controlled by light
sensors located in the inside mirror mount. The system is activated
if all of the conditions be low are fulfilled:
• The window in the switch ® illuminates.
• the driving lights and the ignition have been switched off
• the vehicle is parked in poor light or darkness with the sensors
detecting little or no light at all.
tJl>
Vehicle care I I irechnical data

Clear vision
Coming home situation
In
darkness, the activated system will turn on the headlights, side
marker lights , rear side marker lights , tail lights, and rear license
plate light as soon as the driver's door is opened from inside.
As long as one of the doors or the rear lid remains open, the set of
external lights will keep burning for about four minutes maximum.
To provide light for departure, the set of vehicle lights will keep
burning for about another 30 seconds after all doors and the rear lid
have been closed.
The factory-set time of 30 seconds until the lights are switched off can be adjusted if you prefer a longer or shorter duration. Have the
adjustment done by your authorized Audi dealer or a qualified work­
shop. The system can be adjusted to keep the lights burning for a
maximum of 60 seconds.
Leaving home situation
As soon as the vehicle is unlocked by pressing the
CD button on your
remot e control, the set of external l ights is switched on .
The external lights are switched off as soon as the driver's door is
opened from outside . Even if you had the system readjusted to keep
the lights burning for an extended time for coming home, the
external lights will be turned off if you do not open the driver's door
within 60 seconds after unlocking. See chapter "Opening and
Closing" in your Owner's Manual. If the lights are switched off
before you reach the driver's door, press the@ button once more to
turn them on again.
[ i] Tips
• Do not attach any stickers to the windshield in front of the two
light sensors, as this would interfere with both the automatic oper­
ation of the headlights and the automatic dimming of the inside
mirror(s). • If
the vehicle is remotely unlocked and locked three times in
succession, leaving home will not turn on the lights a fourth time to
safeguard the battery and lights.
• If you wish to use the coming home/leaving home function regu­
larly, you can leave it activated at all times without risking perma­
nent strain on the electrical system. As the system is controlled by
light sensors, it will only be energized in darkness .
• Frequent use of the coming home/leaving home function for
approaching and departing a vehicle parked in the dark will strain
the battery. This applies particularly if only short distances are
driven between stops . Occasionally drive longer distances to make
sure the battery is recharged sufficiently.
• If the fog lights have been switched on by the coming
home/leaving home function, they will always be switched off when
you switch on the ignition. •
Instrument panel illumination
The illumination of the instruments, displays and the
center console can be adjusted.
Fig. 45 Instrument
panel illumination
You regulate the brightness of the instruments with the left
thumbwheel
C J=> fig. 45. ~

Ignition ON , light swit ch at @ .
With the ignition switched ON, the g low of instrument needles can
be adjusted to appear brighter or dimmer.
Ignition ON , ligh t switch at :oo ; or io.
With the lights switched on , the brightness of instrument cluster
(i .e. needles, gauges and displays) and center conso le i llu m in ation
can be adjusted .
0 Note
The instrument c luster and center console illumination (gauges and
needles) comes on when you switch on the igni tion and the
vehicle
headlights are off .
Be aware of the followin g difference be tween
models built to US o r Canadian specifications :
• USA models : illumination of the in strument cluster (gauges and
needles), dash and center console around the gearshift lever is
controlled by a light sensor located in the instrument panel. The
instrument panel illum ination will automatically become dimmer
as the daylight fades away and eventually will go out completely
when outside light is very low . This is to remind you , the d river , to
s witch on the headlight s before it gets too dark.
• Canada models : instrument panel illum ination will stay br ight
regardle ss of the inten sity of ambient light . Always be aware of
c hanges in outside light conditions while you are driving . Respond
in time to fading dayli ght by turning the light switch to position
iD
(or "AUTO" if your car is equipped with this feature) to turn on your
headlights. •
Bi-Xenon headlights*
Afte r starting the engi ne, the b i- xeno n headlights are au tomatical ly
adjusted to the load and angle of the vehic le (for example, during
acce lera tion and braking). This prevents oncoming traffi c from
experiencing unnecessary headlight g lare from your bi -xenon head ­
lig hts .
Con tro ls and eq uip­
ment
Clear vision
I f the system is not operating properly, a warning symbo l in the
Au to-Check C ontr ol is displayed
=> page 36 . •
Emergency flasher tfft,,.
T he e mergency flasher m akes other motor ists aware that
y o u or yo ur vehicle are i n an e merge ncy si tuation.
Fig . 46 Center
co nsole : emergency
fla sher sw itch
Press the sw itch ~=:,fig. 46, to s witch t he emergency
flasher on or off.
When the emergency flasher is on, all four turn signal blink at the
same time . The tu rn signal indi cato r lights
¢i Q in the instrument
c luster, as well as the light in the emergency flasher switch
J:&. b link
likewise.
The eme rgency flashe r will automat ically switch on i f you are in an
accident where the airbag has deployed .
[ i ] Tips
You should switch on the emergency flasher when:
• you are the last vehicle standing in a traffic jam so that any other
vehicles coming can see you, or when
• your vehicle has broken down or you are in an emergency s itua -
tion, o r when _,,,
Vehicle care I I irechnical data

Clear vision
ically . It turns off when the lid is closed and the visor is folded up
again .
Between the visors for the driver and the passenger there is a
folding visor which can be used to cover the space above the rear
view mirror .•
Wiper and washer system
Windshield wiper -$
The windshield wiper lever controls bo th the windshield
wipers and the washer system.
Fi g. 50 Wiper l ever:
wind shie ld w iper l eve r
po sit io ns
T he windshield wipe r lever => fig. 50 has the fo llowing posi ­
t io ns:
Intermittent wiping <5;)1 (activating rain sensor)*
Move t he leve r up to pos ition G) .
- Move the in terva l set switch @, to change the in te rvals .
Low wiper speed
-Move the leve r up to pos ition @ .
High wiper sp eed
- Move the lever u p to position ®·
One-touch wiping
- Mov e the lev er t o posi tion 0 , w hen you wa nt to w ipe t he
windshield
briefly.
Automatic wiper /washer
- Pull the lever to position © (toward the steering wheel)
and hold.
- Release t he lever . The was her stops and the wipers keep
going for about four seconds.
Turning off the wipers
- Mov e the lever bac k t o posi tio n ®·
The windshield wipers and washer only work when the ign ition is
turned on. If you switch off the ignition with the windshield wiper
l ever still in the interval wipe p osition and the n come back a while
later and drive off , the rain sensor will reactivate itse lf after the
vehic le speed has exceeded 4 mph (6 km/h) .
The rai n se nsor* is only activa ted wit h the wiper lever set to posi­
tion
G) . When it starts to rain , the rain sensor wil l automatically acti ­
vate the in termittent wipi ng mode .
To reduce the sens itiv ity of the sensor, move switch© down . To
increa se the sensitivity, move the switch up . The h igher you adjust
the sensitivity, the faster the sensor will react when it senses mois ­
ture on the w indshie ld. The pauses between wiper turns depend not
only on the sens itivity setting, but on the vehicle speed as well.
During brief stops, e .g . at a red light, wiper motion will automati ­
cally be reduced to the next lower speed. Wipers a lready turning at
low speed . change to intermittent wiping .
When the ignition is turned on, the washe r jets are heated. ...