2008 AUDI TT ROADSTER change time

Clear vision
• your vehicle is being towed by a tow truck or if you are towing
another vehicle behind you. •
Turn signals -¢ ¢ and high beam ~D lever
The lever on the left side of the steering column is used to
operate the turn signals and the high beam as well as the
headlight flasher.
Fig. 69 Turn signa l and
high beam leve r
The turn signal and high beam lever has the following func ­
tions:
Turn signals ¢ Q
- Lift the lever up all the way ~ fig. 69, to use the right turn
signals, or push the lever down all the way to use the left
turn signals .
Auto-blink
-Move the lever (up or down) just to the point of resis ­
tance to use the turn signals for as long as you need
them, for example when changing lanes. - Briefly
move the lever up or down just to the point of
resistance and then release it to flash the turn signals
three times in succession. This feature allows to indicate
lane changes clearly and with minimum effort when
driving on highways.
High beam [D
- Push the lever forward to switch on the high beam.
- Pull the lever back towards you to switch off the high
beam.
Headlight flasher [D
- Pull the lever toward the steering wheel to use the head­
light flasher.
Notes on these features
• The turn signals only work with the ignition switched on . The
indicator lights ¢ or¢ in the instrument cluster => page 16 also
blink .
• After you have turned a corner, the turn signal switches off auto ­
matically.
• The high beam works only when the head lights are on . The indi­
cator light ~D in the instrument cluster i lluminates when the high
beams are on.
• The headlight flasher works only as long as you hold the lever -
even if there are no lights switched on. The ind icator light ~D in the
instrument cluster illuminates when you use the headlight flasher .
0 Note
Do not use the high beam or headlight flasher if you know that these
could be blinding oncoming traffic. •

Warm and cold
Warm and cold
Climate controls
Controls
The air conditioning automatically maintains the selected
temperature in the vehicleinterior throughout each
se aso n.
Fig . 93 C limate co ntro ls
We recomme nd the following setting:
Rotate the knob=> fig. 93 @to th e right to switch on the
air conditioning.
Set t he temperature to 72 °F ( 22 °Cl.
Press th e !AUTO ]=> fig . 93 button.
Using the previously recommended setting is the quickest way to
achieve a comfortable climate in the vehicle . T his setting should
therefore on ly be changed when persona l comfort levels or certain
circumstances require it .
The climate contr ols are a combination of automatic heating and
ventilation systems and a cooling system which dehumidifies and coo ls the a ir inside the veh ic le .
The climate controls automa tically ma intain a temperature once it
has been set . T he temperature of the air from the vents, fan speed
(air volume) and air dis tribution are also automa tica lly adjusted . The
system also takes into account strong sunshine so that manual
adjustment is no t necessary. So in al most a ll cases,
automatic mode
offers the best conditions for the comfort of the occupants at all
times of the year~
page 101.
Please note :
In cooling mode, relative humidity in the interior is reduced. This
prevents the w indows from fogging up.
When relative humidity and temperatures outside are high,
conden­
sate
can drip from the air conditioning evaporator and form a poo l
of water under the vehicle . This is normal and not an indication of a
leak!
When outside temperatures are low, the fan does not switch to a
higher speed until the coolant has reached an adequate tempera­
ture, with the exception of the defrost setting .
When accelerating at wide -open throttle, the air conditioning
compressor is temporarily switched off to maintain full engine
power .
I n order to ensure eng ine cooling under extreme engine loads, the
compressor is switched off if coolant temperatures climb too high. _,,,

Fuel supply and filling your fuel tank -___________ ...:._:......:,_______;::;...a,__ __
•
Blend of gasoline and ethanol (grain alcohol or ethyl alcohol)
• Anti -knock index must be 87 AKI or higher.
• Blend must not contain more than
10% ethanol.
Blend of gasoline and MTBE
• Anti-knock index must be 87 AKI or higher.
• Blend must contain not more than
15% MTBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform especially well for
winter or summer driving . During seasona l change -over, we suggest
that you fil l up at busy gas stations where the seasonal adjustment
is more likely to be made in time.
0 Note
• Methanol fuels which do not meet these requirements may
cause corrosion and damage to p lastic and rubber components in
the fue l system.
• Do not use fue ls that fail to meet the specified criteria in this
chapter .
• If you are unable to determine whether or not a particu lar fuel
blend meets the specifications, ask your service station or its fuel
suppl ier.
• Do not use fue l for which the contents cannot be identified.
• Fuel system damage and performance problems resu lting from
the use of fuels different from those specified are not the responsi ­
bility of Audi and are not covered under the New Vehicle or the
Emission Control System Warranties.
• If you experience a loss of fuel economy or driveability and
performance problems due to the use of one of these fuel blends,
we recommend that you switch to unblended fuel. •
Gasoline additives
A major concern among many auto manufacturers is carbon
depos it build -up caused by the type of gasoline you use.
Although gasoline grades differ from one manufacturer to another,
they have certain things in common. All gaso line grades contain
substances that can cause deposits to collect on vita l engine parts,
such as fue l injectors and intake valves. Although most gasoline
brands include additives to keep engine and fue l systems clean,
they are not equally effective.
Audi recommends using TOP TIER Detergen t Gasoline. For more
information on TOP TIER Detergent Gasoline, please go to the offi­
cial website (www.toptiergas .coml.
A ft er an extended period of using inadequate fuels, built-up carbon
deposits can rob you r engine of peak performance.
(D Note
Damage or malfunction due to poor fuel qua lity is not covered by
the Audi New Vehicle Limited Warranty .•
Fuel tank
Fuel filler neck
The fuel filler neck is located on the right rear side panel behind the
fue l filler f lap.
If the unlocking system should fai l, you can stil l open the flap manu ­
a lly -for detai led instructions see=>
page 218.
You can find the fuel tank capacity of your vehicle in Technical Data
=> page 291. _.,
Vehicle care I t •

Checkin g and fillin g -
--------------~-
•
At the time of printing, engine oils available in the U.S . and Canada
t hat meet the exacting specifications of Audi oil standard VW 502 00
are synthetic engine oils . This does not mean, however, that every
synthetic engine oil will meet Audi oil standard VW 502 00. So
always be sure that you use an approved oil.
To help prevent the formation of harmful deposits use only oil with
the follow ing spec ifica tions pr inted on the oil container:
Au di oi l stan dar d VW 502 00
Oil container labels may carry the specification singly or in combi­
nation with other designations and o il quality standards.
V isc osit y
Engine oils are graded according to their viscosity . The proper
viscosity grade oi l for your engine depends on climactic or seasona l
conditions where you drive . You can use oil with a v iscosity grade of
SAE 5W40 across all temperature ranges for normal driving condi ­
tions.
However, if eng ine oil viscosity grade SAE 5W40 is not available, you
can a lso use viscosity grade SAE 5W-30 or SAE 0W-40 as long as it
meets Audi oil qua lity standard VW 502 00 specifications .
Because engine oil that meets the Audi oil standard may not be
available everywhere when you need it, we s trong ly recommend
that you a lways carry with you an extra quart ( liter) of oil that
expressly conforms to the VW 502 00 specification, in case you have
to top off the o il while on the road.
On ly if the level of the oil is at or below the minimum mark on the
oi l dipstick -and no oil that express ly conforms to Audi oi l standa rd
VW 502 00 specifications is available -may you top off with a high
qual ity engine oi l, preferably synthetic -based, t hat meets ACEA A3,
ACEA A5 or ACEA 85, API SL or ILSAC GF -3 specifications, but even
then, only in viscosity grades SAE 5W -40, SAE 5W -30, or SAE 0W -40.
However, dur ing the entire time between oi l change intervals, never
top off w ith more than a total of 0.5 qt/liter engine oil that does not
confo rm to Audi oil specificat ion VW 502 00. For more information about engine oil that has been approved for
your vehicle, p lease con tac t ei the r your authorized Audi dea ler or
Aud i Customer Relations at 1 (800) 822-2834 or visit our web site at
www .audiusa .com or www .audicanada.ca. Here you will a lso find a
current list of oils (manufacturers, brand names etc.l that conform
to Audi oi l standard VW 502 00 .
Changing the engine oil
The engine oil and oil filter must be changed according to the
mi leage (k ilometers) and time intervals specified in your vehic le's
Maintenance
& Warranty booklet. Do not exceed these intervals -
harmfu l deposits from old engine oil can reduce engine perfor­
mance and can lead to expens ive eng ine repairs.
Changing the oil at the recommended interva ls is so very important
because the lub ricating properties of oi l decrease gradua lly during
normal vehicle use. If you are not sure when you have your oil
changed, ask you r authorized Audi Service Advisor .
Under some circumstances the engine oil should even be changed
more frequently. Change oi l mo re often if you drive mostly short
distances, operate the vehicle in dusty areas o r mostly under stop­
and -go traffic conditions, or when you use your vehicle where
temperatures stay below freezing point for long per iods.
Detergent additives in the oil will make fresh oi l look dark after the
engine has been running for a sho rt time. Th is is normal and is not
a reason to change the oil more often than recommended.
D amag e or malfun ctions due to la ck of mai nten ance
It is essential that you change your oi l at the recommended interva ls
using on ly engine oil that complies with Audi oil standard
VW 502 00. Your Limited New Vehicle War ranty does not cover
damage or malfunctions due to failure to fol low recommended
maintenance and use requirements as set forth in the Audi Owner's
Manual and Maintenance
& Warranty booklet . Your dealer wi ll have
to deny warranty coverage unless you present to the dealer proof in
the form of Service or Repair Orders that all scheduled maintenance
was performed in a timely manner. •
Vehicle care I t •

-L~C~ h~ e~c ~k ~in ~ g~a~ n~d ~ f ~i~ ll ~in ~ g~------------------------------------------
Engine oil consumption
The engine in your vehicle de pen ds on an ade quate
amount of oil to lubric ate and co ol all of its moving parts.
In order to provide effective lubrication and cooling of interna l
engine components, al l internal co mbustion engines consume a
certain amount of oil. Oil consumption varies from engine to engine
and may change sign ificant ly over the life of the engine . Typ ical ly,
engines with a specified break -in period (see=>
page 192) consume
more oil duri ng the brea k-in period than they consume afte r oil
consumption has stabi liz ed.
Unde r no rmal conditions, the rate of oil consumption depends on
the quality and viscosity of t he oil, the RPM ( revo lutions per m inute)
at which the engine is operated, the ambient temperature and road
co nd itions. Further factors are the amount of oi l dilut io n from water
condensation or fue l residue and the oxidation leve l of the oil. As
any e ng ine is subject to wear as mil eage builds up, the o il consump ­
tion may increase over time until replacement of worn components
may become necessary .
With all these var iables com ing into p lay, no standard rate of oil
consu mption can be es tab lished or speci fied. There is no a lternative
t o regular and frequent checking of the oi l leve l, see Note.
If the yellow engine oi l level warning symbol in the instrumen t
cluster _ lights up, y ou should check the oil level as soon as
possible
with the oil dipstick=> page 224. Top off the oil at your
ea rlies t conve nience =>
page 225.
ln. WARNING
Before you check anything in the engine compartment , alway s
re ad and heed all WARNINGS =>
& in "Working in the engine
c ompartment" on
page 220.
0 Note
D riving with an insufficient o il level is lik ely to cause seve re damage
to the engine .
[ i ] Tips
• The oil pressure warning display 't!:r. is not an indicator of the oil
level. Do not rely on it. Instead , check the oil level in your engine at
regular intervals , preferab ly ea ch time you refuel , and alw ays before
going on a long trip.
• I f you have the impression your engine consumes excessive
a m oun ts o f oi l, we recommend tha t you consu lt your Audi dealer to
have the cause of your concern properly diagnosed . Keep in mind
that the acc urate measure ment o f oil co nsum ptio n requires grea t
care and may take some time . Your Audi dea ler has instructions
about how to measu re oil consump tion accurately. •
Checking the engine oil level
Fig . 151 Illust rat ion of
principle 1 : Marker s on
oil dip stic k
~

llffll,.___C_ h_e _c_ k_ i_ n ...:::g::;...._ a_ n_ d_ f_ i_ll _in -'g=- --------------------------------------------
& WARNING
• While topp ing off , the oil mu st not come in c ont act with hot
engine part s -fire h azard!
• The oil filler cap mu st be p rope rly se cured to prevent o il from
be ing spra yed on the hot engine and exhau st sy stem when the
engine is running -fire ha zard!
• If your skin has come in conta ct w ith the engine oil , you mu st
su bse quentl y cleanse it th oroughly .
0 Note
• The oil level must not be above range @-danger of converter or
engine damage! Contact an authorized dealership to draw off oi l, i f
necessary .
• Audi does not recommend the use of o il additives. They ma y
damage the engi ne and adver sel y affe ct yo ur Ne w Vehi cle W arra nty.
• Under no circumstances can the oil come in contact with the
sewage network or the soil.
• Observe and fol low legal regulations when disposing of empty
o il containers .•
Changing the engine oil
We recommend that have your oil changed by an autho­
rized Audi dealer or a qualified service s tation.
Before you check anything in the engine compartment, alway s read
and heed all WARNINGS=>
& in "Working in the engine compart ­
ment" on
page 220.
The engine oil must be changed according to the intervals specified in your Maintenance
& Warranty book let. This is very important because the lubricating properties of oil diminish gradually during
n
ormal vehicle use .
Under some circumstances the engine oil should be changed more
frequently. Change oil more often if you drive most ly short
distances, operate the vehicle in dusty areas or unde r predomi­
nant ly stop -and -go traffic conditions, or have your vehic le where
t emperatures remain below freezing for extended per iods .
Detergent additives in the oi l wi ll make fresh oil look dark after the
engine has been running for a short time . This is normal and is not
a reason to change the oi l more often than recommended.
Because of the problem of proper disposal, along with the special
t ools and necessary expertise required, we strong ly recommend
that you have your oil changed by an authorized
Aud i de aler or a
qualified serv ice stat ion.
If you choo se to change your oil your self , please note the fo llowing
i m portan t information:
& WARNING
To reduce the ri sk of personal injury if you m ust change th e engine
oil in y our v eh ic le you rself:
• Wear eye protection.
• To reduce the risk of burns from hot engine oil , let the engine
cool down to the touch.
• Wh en removing the oil dra in plug with your fingers , st ay as far
away as possible . Al way s keep your fore arm p ara llel to the ground
to help pre vent hot oil from running down your arm.
• Drain the oil into a contain er de signed for thi s purpo se , o ne
large enough to hold at lea st the total amount of oil in your engine .
• Engine oil is pois onou s. Keep it well o ut of the reach of children .
• Con tinuou s contact with used engine oil i s harmful to your
s kin. Al ways pr ote ct your s kin b y was hing oil off th oroughl y with
s oap and w ater . .,_

___ C_h_ e_ c_k _in --== g'-- a_n _d_ f_il _li _n ..:::g:::..- ___________________________________________ _
& WARNING (continued)
• The auxiliary electric fan is temperature controlled and can
switch on suddenly even when the engine is not running.
• The auxiliary radiator fan switches on automatically when the
engine coolant reaches a certain temperature and will continue to
run until the coolant temperature drops. •
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a quick glance.
Fig. 155 Engine
compartment: brake
fluid reservoir
Before you check anything in the engine compartment,
always read and heed all WARNINGS =>
& in "Working in
the engine compartment" on
page 220.
- Read the brake fluid level from the brake fluid reservoir
~ fig. 155. The brake fluid level must be between the
"MIN" and "MAX" markings.
The brake fluid reservoir is located behind the rear partition of the
engine compartment on the left side~
page 221 .
The fluid level may drop slightly after some time due to the auto­
matic adjustment of the brake pads. This is not cause for alarm.
If the brake fluid level falls
considerably below the "MIN" mark, the
brake warning/indicator light (U .S. models:
BRAKE , Canadian models:
ill) will come on~ page 20 and~ page 32. Do not continue to
operate the vehicle . The complete brake system should be thor­
oughly checked by an authorized Audi dealer or other qualified
facility and the cause corrected. If the brake fluid level is too low, the
brake warning/indicator light will illuminate. Contact an authorized
Audi dealer
immediately .•
Changing brake fluid
Have the brake fluid changed by an experienced techni­
cian.
Brake fluid absorbs moisture from the air. If the water content in the
brake fluid is too high, corrosion in the brake system may result
after a period of time. The boiling point of the brake fluid will als o
decrease considerably and decrease braking performance.
Therefore, the brake fluid must be changed
every two years. Always
use new brake fluid which conforms to Federal Motor Vehicle Stan ­
dard "FMVSS 116 DOT 4".
The brake fluid reservoir can be difficult to reach, therefore, we
recommend that you have the brake fluid changed by your autho­
rized
Audi dealer . Your dealer has the correct tools, the right brake
fluid and the know -how to do this for you.
& WARNING
• Brake fluid is poisonous. It must be stored only in the closed
original container out of the reach of children!
• Brake failure can result from old or inappropriate brake fluid.
Observe these precautions : .,,_

___ C_h_ e_ c_k _in --== g'-- a_n _d_ f_il _li _n ..:::g:::..- ___________________________________________ _
& WARNING (continued)
• Make sure the vent hose is always attached to the opening on
the side of the battery.
• Never use batteries which are damaged. Danger of explosion!
Always replace a damaged battery .
& WARNING
California Proposition 65 Warning :
• Battery posts, terminals and related accessories contain lead
and lead compounds, chemicals known to the State of California
to cause cancer and reproductive problems. Wash hands after
handling .
0 Note
• Do not disconnect the vehicle battery when the ignition is
switched on or when the engine is running, otherwise, you will
damage electronic components in the electrical system.
• When working on the engine, protect the battery housing from
ultraviolet (UV) rays by not parking the vehic le in direct sunlight.
• If your vehicle is going to stand for a long period of time without
being driven , protect the battery from "freezing", otherwise it will
be damaged and will then have to be replaced. •
Checking the battery acid level on magic eye
batteries*
The battery acid level in the battery can be checked
through the clear inspection window.
I
Fig. 157 Luggage
compartment : Battery
with magic eye.
On top of the battery, there is a round "window". This
window (magic eye) changes color as the battery charge
and acid level change.
- Read and heed all WARNINGS=>
& in "Working on the
battery" on
page 232
- Read the acid level from the window on the battery
=> fig. 157.
Air bubbles in the window can cause an inaccurate reading. Care ­
fully tap on the side of the window.
• If the window is
green, the battery acid level is correct.
• If the window has
no color or is bright yellow, the battery acid
level is too low. Have the battery tested by your authorized Audi
dealer or a qualified workshop.
• If the window is
black , then the battery is insufficiently charged.
Recharge the battery as soon as possible =>
page 235. ...