AUDI TT ROADSTER 2008 Owners Manual

Functions are set by turning the rotary knob or switched on and off
by tapping the buttons. The LED in the buttons illuminates when the
function is active .
Button(sl
Rotary knob 0
Rotary knob 0 @
Rotary knob©
(- .,; +]
-
Po llutant f ilter Me
aning
Temperature selection
Switch ai r conditioning
on/o ff
Fan
Air distribution
Rear window defogger
Heated seat* driver/pas ­
senger side
Recirculation
Switch on cooling sys ­
tem
P age
~ page 100
~ page 100
~ page 701
~ page 101
~ page 103
~ page 104
~ page 102
~ page 102
The pollutant filter (particle filter) ensures that contaminants in the
outside air (such as dust or po llen) are grea tly reduced or stopped.
T he air is also filtered in recirculation mode.
The pollutant fil ter e lement must be changed according to the inter ­
vals specified in the maintenance schedu le so that the air condi­
tioning system's performance is not adversely affected.
If the fil ter's effectiveness is weakened by driving the vehicle in
areas with heavi ly polluted outside air, the filter element should also
be changed in between the listed services .
Controls and equip ­
ment
W arm and cold
& WARNING
Fo r safet y rea sons , it is imp ort ant that all window s are free of ice,
snow , and condensati on . Only then i s good vi sibility en sured.
Pl eas e familiari ze yourself with the co rrect o peration of th e air
c ond itioning and how to dehum id ify /defro st the windows.
0 Note
• I f you suspect that the climate contro ls have been damaged ,
switch the system off to avoid damaging it , and have it inspected by
an authorized Audi dealer.
• Audi climate control system repairs require specia l expertise and
the proper tools. You shou ld contact an authorized Audi dealer in
the event of malfunct ions.
[ i ] Tip s
• To avoid adversely affecting heating and cooling performance
and to prevent condensation on the windows, the air intake in front
of the windsh ield must be free of ice, snow, and leaves.
• The air coming from the vents and circu lating through the en tire
interior is extracted through the out let slots in the side panels in the
luggage compartment. Make sure that the outlet slots are not
covered by clo th ing, etc.
• Climate control works most effectively if the windows are closed .
However , if the interior o f a parked vehicle is extremely hot from the
sun's rays, briefly opening the windows can speed up the cooling
process. •
I • •

• ..__w_ a_ r_m _ a_ n_d_ c_ o_ ld __________________________________________________ _
Setting temperature
Fig . 94 Rota ry k nob fo r
t e mp era tu re set ting
-Turn the rota ry knob ::::, fig . 94 to the desi red temperature
setting.
To set a lower temperature, turn the rotary knob to the left . To set a
high er temperature, turn the rotary knob to the right . Ther e ar e addi ­
tional intermedia te set tings available to adjust the temperature as
needed .a
Switching climate control on and off
Fi g. 95 Rota ry kn ob to
sw itch air cond itio nin g
on and o ff a nd to reg u­
l a te fan sp ee d
Swit ching th e climat e control system on and off
Turn the knob::::, fig . 95 to the right to switch climate
control on. The LED next to the word OFF goes out.
T u rn the knob::::, fig . 95 to the left to switch the climate
cont rol system off . The LED next to the word OFF comes
on .
Setting fan speed
~
T ur n th e knob::::, fig. 95 to the setting you want t o adjust
fan speed (air quant ity) .
In automatic mode the cl imate control system automatically regu ­
lates fan speed depending on interior temperature. You can adjust
the volume of air produced by the fan to meet your own require ­
men ts .
[ i ] Tips
If the diffe rence between the desired temperature set by you and
the vehicle's interior temperature is too great, the fan speed will
change automatically. This is done so that the desired temperature
setting is reach ed as quickly as possible .•

___________________________________________________ W_ a_ r_m _ a_ n_d_ c_ o_ ld _ __._
Air distribution
Fig . 96 Rotary k no b fo r
air dist rib utio n
- Tur n t he ro tary knob =:> fig . 96 to the desired setting.
Using the rotary knob, you can adjust air distribution~ page 102,
fig. 97 so that air flows from specific vents.
• In setting
-0-, air flows on ly to the windows, vents © and 0 are
open. To defros t the driver and front passenger side windows most
effectively, the vents 0 should be directed toward the side
windows .
• In setting@, air flows on ly to the driver/passenger, vents © and
0 are open .
• In setting
-0,, air flows only to the footwell, vents © are open.
• In setting~. air flows on ly to the windows and the footwell,
vents © and © are open .
There are additional combinations (through intermedia te settings)
available to adjust air distribution as needed .•
Con tro ls and eq uip­
ment
Defrost [@)
The windshield and side windows are defrosted or cleared
of condensation as quickly as possible.
To turn on the defogger/defroster, press the[@] button
=:>
page 98, fig. 93.
- To turn the defogger/defroster off, press the[@] button
aga in, or the (AU TO
I button.
Temperatur e is controlled automatically . Th e maximum amount of
air flows main ly from vents 1
~ page 102 .
A small amount of air flows from vents 2 -if they are open
~ page 102.
Pressing the (@I button sw itches off recircu lation mode. •
Automatic operation [AUTO]
Standard operating mode at all times of the year.
Turning on autom ati c operation
- Set the tempe rature you wan t.
- Press the (AUTO
I button =:> page 98, fig. 93.
Automatic operation ensures constant temperatures in the interior
and dehumidifies the air inside the vehicle . Air temperature,
volume, and distribution are controlled automatically to reach or ma intain the desired interior t empera ture as quickly as possible .
Fluctuations in exterior temperature and the effects of temperature
from the position of the sun are compensat ed for automatically. •
Vehicle care I I irechnical data

• ..__w_ a_ r_m _ a_ n_d_ c_ o_ ld __________________________________________________ _
Manual air recirculation mode[~]
The recirculation mode prevents polluted outside air from
entering the vehicle interior.
Switching on air recir culation
- Press the button [19.] ~ page 98, fig . 93 ~ & .
Swit ching off air recir culation
Press the butt on [19.] ag ain, o r
Press the
[AUTO I button, or
- Press the[@] button.
In recircu lation mode, air is drawn from the vehic le interior, filtered,
and recircu lated. We recommend that you se lect recircu lat ion mode
briefly ~ & under the fo llowing conditions:
When driving through a tunnel or i n a traffic jam so that exhaust
fumes and odors cannot enter the vehic le interior .
& WARNING
You should not u se the re circulat ion mode for an e xtended period
s ince no fre sh air i s drawn in , and with the air conditioning
s wit ched off the windows can fog up -this in crea se s the ris k of an
accident !•
A /C operation [AC)
Switching on A /C
- Press th e [AC] button~ page 98, fig. 93 .
Switching A /C off
- Press the [AC] button again.
The cooling system is switched on during A/C operation - the
heating and ven tilation system is controlled automatica lly.
I i ] Tips
If the LED in the switch stays on after A/C operation has been
switched off( = switching the A/C offl, there is a fau lt in an air condi ­
t ioning component. Please consult an authorized Audi dealer when
there is an operating prob lem .•
Air vents
Air d istribution determines the air flow fro m the indi ­
vi dual vents.
Fig . 97 Instrumen t pan el: Loc ation o f air vent s
Vents @and 0
- To open and close the outlets, t urn the adjusting ring.

___________________________________________________ W_ a_ r_m _ a_ n_d_ c_ o_ ld _ __.11111
- To adjust the direction o f the airflow from the o utlet,
move the tab in the cen ter of the o utlet in the desired
direction . The direction of the air delivered from the
vents can be adjusted hor izontally and vertically .
G) Air flows to the windshield and the driver and front passenger
side windows
@ Air flows to the driver/fron t passeng er or to the driver and front
passenger side windows
© Air flows to the driver/front passenger
© Air flows to the footwe ll
Using the rotary knob, you can adjust air distribution=>
page 101 so
that air flows from specific vents=>
page 102, fig. 97.
Heated or unheated fresh air, or cooled air flows from the vents.
[ i ] Tip s
If climate control is running in cooling mode, air should flow mainly
from vents @ and
G). To achieve adequate coo ling, you should
never c lose the outlets completely .•
Using the climate controls economically
Economical use of the climate controls helps to save fuel.
When climate co ntrol is w orking in c ooling mode, engine
performa nce is reduced and fuel consum ption is affected .
To keep the t ime the air cond itioning is on as s hort as
poss ible, you s hould do the following :
- If yo u would like to save fue l, sw itch the air con ditioning
off .
- If you open t he windows while driving, switch the air
conditio ning off .
Contro ls and eq uip­
ment
- If the ve hicle is extremely hot due to the heat of the sun,
br ie fl y open doors and windows .
c£> For the sake of the environment
When you save fuel, you reduce emissions from the vehicle .•
Rear window defogger [ffiJ
The rear window defogger clears the rear window of
condensation.
F ig . 9 8 Switc h for rear
w ind ow defo gg er
- Press the [ml button to turn t he rear window defogger on
and off.
The rear window defogger works only when the engine is running .
The indicator light in the button illuminates when the rear window
defogger is turned on .
The rear window defogger is switched off automatica lly after 10 to
20 m inutes, depending on the outside temperature .
At very low outside temperatures, the rear window defogger can be switched on continuously by pushing the
Qii) button for more than 2
seconds. This remains stored until the ignition is switched off . A ..,
Vehicle care I I Technical data

-Warm and cold .._ __________________________________________ _
rear window defogger that was switched on also remains stored for
15 minutes after the ignition is switched off .
If the eng ine is restarted within these 15 m inutes, the rear window
defogger is activated for 10 to 20 minutes, depending on outside
t emperature. With a vehicle that is parked for a short time, the rear
window defogger does not need to be manually activated again.
<£> For the sake of the environment
As soon as the rear window is clear, you should switch the rear
window defogger o ff. The reduced power consumption has a bene­
ficial effect on fue l consumption .•
Ap plies to v ehicles : wit h heated seats
~--
Heated seats (-,J +)
The seat cushion and the seat back of the front seats can
be heated electrically.
F ig . 9 9 He ate d driver
a nd p ass en ger se ats
- Press the heated seats button I-,J +Ito set the level of
heat ing desired=> fig. 99.
The range of controls goes from 1 to 3 . The heat setting selected is
shown by LEDs above the button .
0 Note
To avo id damage to the heating eleme nts in the seats, do not kneel
on the seats or place heavy loads on a small area of the seat. •

___________________________________________________ O _n_ t_h :.... e:.....:. r_:o :.... a:.:. d ..:.:.___,J"'
On the road
Steering
Adjusting the steering wheel column
The steering wheel position can be continuously adjusted
in height and distance.
First, adjust the driver's seat correctly.
Fig. 100 Lever under
the steering column
-Push the lever~ fig. 100 -Arrow-~ /.1 .
- Move the steering wheel to the desired position.
Pu sh the lever against the steering column until it locks.
T here must be at least 10 inches (25 cm) between your chest and the
center of the steering wheel. If you cannot sit more than 10 inches
(25 cm) from the steering wheel, see if adaptive equipment is avail­
able to help you reach the pedals and increase the distance from the
steering wheel.
For detailed information on how to ad just the driver's seat, see
=> page 89.
Contro ls and eq uip­
ment
& WARNING
Improper use of steering wheel adjustment and improper seating
position can cause serious personal injury.
• Adjust the steering wheel column only when the vehicle is not
moving to prevent loss of vehicle control.
• Adjust the driver's seat or steering wheel so that there is a
minimum of 10 inches (25 cm) between your chest and the
steering wheel
=> page 130, fig. 118 . If you cannot maintain this
minimum distance , the airbag system cannot protect you prop­
erly .
• If physical limitations prevent you from sitting 10 inches (25
cm) or more from the steering wheel, check with your authorized
Audi dealer to see if adaptive equipment is available.
• If the steering wheel is aligned with your face, the supple­
mental driver's airbag cannot provide as much protection in an
accident. Always make sure that the steering wheel is aligned with
your chest .
• Always hold the steering wheel with your hands at the 9 o'clock
and 3 o'clock positions to reduce the risk of personal injury if the
driver's airbag deploys .
• Never hold the steering wheel at the 12 o'clock position or with
your hands inside the steering wheel rim or on the steering wheel
hub . Holding the steering wheel the wrong way can cause serious
injuries to the hands , arms and head if the driver's airbag
deploys .•
Vehicle care
I I irechnical data

• ..__O_ n_ t_h _ e_ r_ o_ a_ d ____________________________________________________ _
Ignition lock and ignition switch
Ignition lock
The igniti on key starts or s tops the eng ine.
Ignition off G)
Fi g. 1 01 Ign it io n lock
po sition s
In posit ion => fig. 101 G) both the ignition and engine are off, and
t he steering is locked.
To
lo ck the steering after you have removed the ignition key, turn
the steering whee l in either direction until you hear it lock into
place . You should always lock the steering whenever you leave your
vehic le. This makes a vehicle theft even more difficult =>& .
Ignition on 0
If it is difficult to turn the key after you have inserted it into the igni ­
tion lock, turn the steering wheel back and forth. This will take the
load off the steering lock mechanism and you wil l be able to turn the
key freely and start the engine.
Starting the engine ®
In this position the engine starts . Whi le the engine is starting, the
power supply to the headlights and other electrical consumers is
temporari ly interrupted to conserve battery power . After the engine
has started, release the key and it will return to position
G) .
Before the starter can be operated again the key must be turned
back to posi tion
G) . The non -repeat lock prevents you from
damaging the starter when the engine is running.
& WARNING
• Never remove the key from the ignition lo ck while the veh icle is
moving. The steering wheel will lo ck causing lo ss of control .
• If you have to leave your vehicle -even for just a minute -always
remove the ign ition key and take it with you . This i s especially
i mportant if you are going to l eave children behind in the vehi cle .
The children could start the eng ine or u se other vehi cle control s.
Unsupe rv ised use of vehicle controls (for e xample , power
window s) can cau se serious per sonal injurie s.
[ i ] Tips
If the veh icle ba ttery has been disconnected a nd then reconnected,
then you must leave the key in position
G) for about 5 seconds
bef ore you can start the engine .•
Appl ies to vehicles: with automat ic trans miss io n
Ignition key safety lock
The ig nition ke y can only be rem oved when the selec tor
le ver i s in the "P" (Par k) p osition.
After switching off the ignition, the ignition key can only be
r emoved from the igni tio n lock w hen the se lector leve r is in the "P"
(Park) position . After you have removed the key, the selector lever is
l ocked and cannot be moved. •

___________________________________________________ O _n_ t_h _ e_ r_ o _ a_ d __ ,n
Starting and stopping the engine
Starting the engine
The engine can only be started with on original Audi key
and the clutch pedal* depressed.
- Set the parking brake.
Move the selector lever to the neutral position (automatic
transmission: selector lever in P or N)
~ & .
- On vehicles with manual transmission, fully depress the
clutch pedal.
- Turn the ignition key to position
G) ~ page 106, fig. 101
- do not depress the gas pedal when starting the engine!
- Let go of the key as soon as the engine starts.
A cold engine may at first be loud after it has been started. This is
due to the hydraulic valves building up the oil pressure . This normal
and no need for concern.
If the engine does not star t immediately, stop trying after 10
seconds and then try to restart the engine about 30 seconds later.
& WARNING
Never start or let the engine run in a confined or enclosed area.
Exhaust fumes from the engine contain carbon monoxide, a color­
less and odorless gas. Carbon monoxide can be fatal if inhaled .
• Never leave the engine idling unattended. An unattended
vehicle with a running engine poses a danger of personal injury or
theft.
Controls and equip ­
ment
0 Note
• Avoid high engine speeds, fast acceleration or heavy engine
loads while the engine is still cold. This could damage the engine.
• The engine cannot be started by pushing o r towing the vehicle.
~ For the sake of the environment
To avoid unnecessary engine wear and to reduce exhaust emis­
sions, do not let your vehicle stand and warm up. Be ready to drive
off immediately after starting your vehicle. Maintain moderate
speed until the engine is completely warm. Remember, the engine
performs best at operating temperature. •
Stopping the engine
-Turn the ignition key to position G) ~ page 106 , fig. 101.
& WARNING
• Never turn off the engine until the vehicle has come to a
complete stop.
• The brake booster and servotronic only work when the engine
is running . With the ignition turned off, you have to apply more
force when steering or braking. Since you cannot steer and stop
normally, this can lead to accidents and serious injuries.
• The radiator fan can continue to run for up to 10 minutes even
after you have turned off the engine and removed the ignition key.
The radiator fan can also turn on again if the engine coolant heats
up because of intense sunlight or heat build-up in the engine
compartment. .,
I • •

• ..__O_ n_ t_h _ e_ r_ o_ a_ d ____________________________________________________ _
0 Note
Do not stop the engine immediately after hard or extended driving.
Keep the engine running for approximately two minutes to prevent
excessive heat build-up. •
Parking brake
Parking brake
When the parking brake is set, it prevents the vehicle from
rolling away unintentionally.
Setting the parking brake
Fig . 102 Center
console: Parking brake
set
- Pull the parking brake lever all the way up.
Releasing the parking brake Pull the parking brake lever up slightly
and press the
release button at the same time=> fig. 102 -arrow-.
Keep the release button pressed and lower the parking
brake=>
& -
If you should drive off with the parking brake still set, a warning tone
will sound and the following will appear in the instrument cluster to remind you to release the parking brake:
Parking brake set
The parking brake warning comes on only after you have driven for longer than 3 seconds and faster than 5 mph (5 km/h).
The parking brake warning light Brake (USA)/
{CD) (CON) illuminates
when the parking brake is set and you switch on the ignition.
& WARNING
Always release the parking brake completely . A partially engaged
brake will overheat the rear brakes, reduce their effectiveness and
cause excessive wear. This could lead to brake failure and an acci­
dent.
0 Note
Only after the vehicle has come to complete stop, should you firmly
set the parking brake and either move the gearshift lever into 1st .
gear (manual transmission) or move the selector lever into "P"
(Automatic transmission). •
Parking
To prevent a parked vehicle from rolling away, there are a
few things you should do.
When you park your vehicle, do the following:
- Stop the vehicle using the brake pedal.
- Set the parking brake firmly.
- Switch off the engine.