2008 AUDI TT ROADSTER water

Faults in the brake syst em
If you shou ld notice a sudden i ncrease in brake pedal travel, then
one of the two brake circuits may have failed=>
& -
Low brake fluid level
Ma lfunctions can occur in the brake system if the brake fluid leve l is
t oo low. The brake fluid level is moni tored e lect ronica lly .
Brake pow er assist unit
The brake p ow er assist un it increas es th e pressure that you
generate with the brake peda l. It works only when the engine is
running.
& WARNING
• You should perform braking maneuver s for the purpose of
c leaning the brake system only if road conditions permit . Other
road users must not be put at ri sk -you may cause an accident!
• Before des cending a steep grade , redu ce speed and sh ift trans­
mi ssion into a lower gear or lower driving position . Do not ride the
br akes or hold the pedal down too long or too often . This could
cause the brakes to get hot and diminish braking efficiency .
• Do not "ride the brakes " by resting your foot on the pedal when
you do not intend to brake . Thi s may cause the brakes to overheat,
premature we ar and increased stopping distan ce .
• Under certain cl imatic and operating condit ions such as
pas sing through water , driv ing in heavy rain or after washing the
vehicle, the effectiveness of the brake s can be reduced . In winter ,
ice can ac cumulate on the brake pads , linings , discs and drums .
Cautiously apply brakes for a te st. Brakes will dry and ice coatings
will be cleaned off after a few cautious brake appli cations .
• Driving for an extended period of time on salt -covered road s
without using your brakes can also affect brak ing effic iency . Clean
off accumulated salt coating from brake discs and pads with a few
c autiou s brake applications .
Controls and equip­ ment Safety first Vehicle operation
Intelligent technology
& W
ARNING (continued )
• If you damage the front spo iler , or if you install a different
s poiler , be sure the air flow to the front brakes is not obstructed.
Otherwise the brake system could overheat redu cing the effective­
ness of the entire br ake system.
• Failure of one brake circuit will impair the braking capability
resulting in an increa sed stopping distance. Avoid driving the
vehicle and have it towed to the nearest Audi dealer or qualified
workshop.
• Never let the veh icle roll to a stop with the engine shut off .
• If the b rake booster is not working , for e xample when towing
your vehicle, or because the brake booster has somehow been
damaged , the brake pedal must be pre ssed considerably harder to
make up for the lack of booster assistance . •
Anti- lock brake system (ABS)
ABS p revents the wheel s from loc king unde r br ak ing.
The anti -lock brake sys te m (ABS) makes a major contri but ion to
i ncreasing act ive d riv in g sa fety . You should not expect that brakin g
distances wi ll be
shortened unde r all c ircums tances wi th ABS.
B rak in g distance may even become somewhat
longer , for e xa m ple ,
on gravel or in new snow on s lippery ground, even if you are driving
carefully and slowly.
ABS operation
W hen a veh icle speed o f about 10 mph (20 km/ h) is reac hed , an au to ­
matic test sequence is run. Some noise from the pum p may be
audible.
I f the speed of a wheel s lows down too much re lative to vehicle
speed and i t starts to lock, br ake pressu re to th is whee l is reduce d.
T his adjustment process can be felt as a
pulsing motion of the b rake
pedal ,
accompanied by some noises. Yo u as the d rive r are in tent io n­
a lly being g iven the in fo rmation that the wh eels a re tendin g to lock
Vehicle care Do-it-yourself service Technical data

[ i ] Tips
• If the pow er st eering sy stem sho uld fa il, or if the e ng ine is not
running (for examp le , whi le being towed), you will stil l be able to
st eer the ve hicle . How eve r, more e ffort w ill be required to do so.
• I f the powe r steering system is not f unctioning pr ope rly, contact
your authorized Audi dea ler immediate ly.
Ap plies to vehicles : wit h A ll Wheel Driv e
Driving w ith your quattro®
With All Wheel Drive, all four w heels ar e dri ven.
General information
With All W hee l Dr ive, power is d is tr ibute d to all fou r whee ls . T his
happens automat ica lly depending on your driving style and the
r oad cond itio ns at the time. See also =>
page 186, "E lec tronic diffe r­
entia l lock ( EDU" .
Winter tires
When driving in the winter, your vehic le with All Wheel Drive has an
advantage, even wi th regula r t ir es . In winter road conditions it may
be advisable to mount winter tires (or all -season tires) for improved
driveabi lit y an d braking : these tires m ust be mounted on
all four
wheels .
See also=> page 254 , "Win ter t ires" .
Snow chains
Where tire cha ins are mandatory on certain roads, this normally
a lso a pplies t o vehic le s wi th Al l Wheel Drive =>
page 255, "Sn ow
chains".
Replacing wheels /tires
Vehicles with A ll Wheel Drive must always have tires of the same
s iz e. Also av oid t ires w it h d iff eren t tr ead dep ths. For details see
page=>
page 249, " New tires and replacing tires and whee ls " .
Controls and equip­
ment Safety first Vehicle operation
Intelligent technology
Off
-Road driving?
Your Audi d oes not have en ough gr ound clea rance to be use d as a n
off -road vehicle. It is therefore best to avoid roug h tracks and
u neven terrain as much as possible. A lso refer to=>
page 194.
& WARNING
Always adjust your driving to road and traffic conditions. Do not
let the extra safety afforded by All Wheel Drive tempt you into
taking extra risks .
• Although the All Wheel Drive is very effective , always
remember that braking capacity is limited by tire traction. You
should therefore not drive at e xcessive speeds on icy or slippery
road surfaces.
• On wet road su rfaces , be careful not to dr ive too fast because
the front wheels could begin to slide on top of the water (aqua ­
planing ).
If this should occur , you will have no warning from a
sudden increase in engine speed as with a front -wheel drive
vehicle . Always d rive at speeds which are suited to the road condi­
tions. -risk of cra sh. •
Vehicle care Do-it-yourself service Technical data

_____________________________________________ C_ l_ e _a_ n_ in_ g_a _ n_d_ p_ r_ o_ t _e_ c_t _io _ n __ _
•
High temperatures, as from exposure to intense sunlight, intens ify
the corrosive effect particularly when humidity is high as well.
Under ce rtain circumstances ,
weekly washing may be necessary .
Under other conditions, a monthly washing and waxing may be
adequate.
After the winter, the
underside of the vehicle should be thoroughly
washed preferably in a professional car wash .
& WARNING
Always read and heed all WARNINGS and the information
=>
page 200 . •
Automatic car wash
The vehicle can be washed in almost any modern auto­
matic car wash.
The vehicle paint is so durable that the vehicle can normally be
washed without problems in an automatic car wash . However , the
effect on the paint depends to a large extent on the design of the
facility, the filtering of the wash water, the type of wash and care
material, etc. If the paint has a dull appearance after going through
the car wash or is scratched, bring this to the attention of the oper­
ator immediately . If necessary, use a different car wash .
The power top does not require specia l precautions before passing
through a car wash.
However, the car must not be treated with hot
wax after the wash cycle!
The wax could adversely affect the power
top and even damage the fabric over a period of time.
The power top do es not have to be washed every time you use a car
wash . The power top can be spared if the car wash facility is
equipped with manually adjustable roof brushes or rollers.
Before going through a car wash, be sure to take the usua l precau ­
tions such as closing the windows. Remove antenna if applicable . If
you have installed additional accessories on the vehicle -such as
spoilers, etc. -it is best to ask the car wash operator if these should
be removed.
& WARNING
Always read and heed all WARNINGS and the information
=> page 200. •
Washing the vehicle by hand
A lot of water is needed when washing a vehicle by hand.
-Before you start washing, make sure you have read and
understood the WARNINGS ::}
& in "General informa­
tion" on
page 200.
-First soak all dried dirt until it is soft, then rinse it off.
- As you clean your vehicle, start with the roof and work
your way down to the bottom, using a sponge, a sponge
glove or a clean brush.
- Rinse the sponge or the sponge glove often, flushing it
clean each time.
- Use special car shampoo only for very persistent dirt .
- Rinse the car thoroughly with water.
- Use a chamois leather to gently wipe the exterior dry.
Use a separate sponge for cleaning the wheels, door si lls and other
regions exposed to road dirt. In this way, you will not scratch the
paint with coarse particles imbedded in the sponge the next time
you wash the car . .,,
Vehicle care I t •

___ C_ le_ a _ n_i_n ~g _ a_ n_ d __ p_r _o _t _e _c_ t_ i_o _n ___________________________________________ _
& WARNING
• Do not cl ean th e under side o f the ch ass is, fender s, whe el
c over s, or other hard to r ea ch part s without protecting your h and s
a nd a rms. Yo u may cut you rse lf on sh ar p-edged m eta l p art s.
• Alway s read and h eed all WARNINGS and other informat ion
~ p age 2 00 .
0 Note
• Never try to remove dirt, mud or dust if the surface of the vehicle
is dry . Never use a dry cloth or sponge, s ince this cou ld scratch your
vehic le's paint or w indows .
• Never wash your car in br ight sunl ight. Drops of wa ter act as
magnifying lenses and may damage your paint .
• When you wash your car in the winter : if you rinse your vehicle
with a hose, be careful not to aim the stream of water directly at
locks, or at door or ha tch openings - they can freeze shut.
• Never use sponges designed to remove insects, or any kitchen
scouring sponges or simila r products. They can damage your paint
finish .
• Never use a dry cloth or sponge to c lean the head lights. Only use
wet cloths or sponges to prevent scratches . It is best to use soapy
water.
c£> For the sake of the environment
In the interest of the environment, the vehicle shou ld on ly be
washed in special wash bays. •
Washing your vehicle with a power washer
Cleaning the exterior of your car with a high-pressure
power washer is safe as long as you observe a few simple rules .
-Before us ing the powe r washer, make sure you have read
and understood the WARNINGS~
& in "General infor ­
mation" o n
page 200.
Always follow the operating instructions for the power
washer.
Make sure that the jet o n th e sp ray hose produces a "fan
shaped sp ray".
Do
not hold the spray n ozzle too close to soft ma terials .
Never u se a power washer to clean the power top itself .
When cleaning the vehicle with a power washer
always follow the
operating instructions. This applies particula rly to the
operating
pre ssure
and the spraying di stanc e. Maintain a sufficient distance
to soft materia ls such as rubber hoses and sound/vibration dead­
ening materia ls (particularly on the underside of the engine hood).
Do not use a jet which sprays water in a
di re ct stre am or one that
has a
rotating jet.
Water temperature shou ld not exceed 140 °F (60 °Cl.
in. WARNING
Never wash tires with a jet that sp rays water in a dire ct stream .
Thi s could cause invisib le damage to the tire s and weaken them ,
even if the spra y is fr om a re lative ly lo ng d istanc e and f or a s ho rt
tim e. Damaged and we akened tire s can f ail and cau se ac cident s
a nd pers ona l i njur y. .,,_

_____________________________________________ C_ l_ e _a_ n_ in_ g_a _ n_d_ p_ r_ o_ t _e_ c_t _io _ n __ lftlll
•
0 Note
• Never use a power washer to clean the powe r top itself .
• To avoid damaging your vehicle, always make sure that there is
sufficien t distance between the spray head and soft materials like
rubber hoses, plastic parts and sound -deadening materials. Never
aim the spray head at the same point for a long time. This also
applies to cleaning headlights and painted bumpers. Remember:
the closer the nozzle is to the surface of the material, the greater the stress on the material. •
Folding top care
The folding top requires special care.
Keeping your top looking great and making certain that it lasts a
long time depend to a great extent on proper use and care. Remove
bird droppings as soon as possible, since the corrosive chemicals in
them will cause the rubber impregnation in your top to swell and
possibly allow the fabric to leak .
W ith normal soiling, all you need to do is clear the top with a soft
brush and clear water . Always brush in the direction of the fabric
from front to rear.
If the top is very dirty and has spotted areas clean it with a brush
using a convertible top cleaner. Always brush in the direction of the
fabric from front to rear . Rinse with plenty of clear water, and allow
the top to air-dry.
Chamois are not suitable for drying the top.
Never use gasoline, spot remover, benzene, paint thinner or
solvents to remove spots. We recommend that you only use
cleaners especially formulated for use on convertible tops, and that
you follow the produce use directions carefully . Authori zed Audi
deals can provide detailed information.
& WARNING
Always read and heed all WARNINGS and the information on
:=> page 200.
0 Note
Never use a high -pressure power washer to clean the folding top. •
Applies to ve hicles: w ith win d def le cto r
Wind deflector
Clear the wind deflector with water or, if it is heavily soiled, a chem­
ically neutral cleaning solution.
& WARNING
Always read and heed all WARNINGS and the information on
=> page 200. •
Waxing
Wax protects the vehicle's paint.
-Use a manually applied car wax occasionally to protect
the paint.
A good wax coating protects the vehicle paint to a large extent
against the environmental factors listed under ~ page 200,
"Washing" and even against slight scratches.
You can use a liquid car wax to protect your paint as soon as one
week after your vehicle has been delivered.
Even if you regularly use a waxing process in automatic car washes ,
we recommend that you manually apply a coat of wax to give the .,_
Vehicle care
I t •

___ C_ le_ a _ n_i_n ~g _ a_ n_ d __ p_r _o _t _e _c_ t_ i_o _n ___________________________________________ _
paint extra protection, particularly if water no longer beads on the
clean paint .
Protect p lastic body parts with car wax in the same way as the
vehic le body .
During wa rm weather dead insects tend to collect on the fron t
bumper and on the forward area of the hood. They are much easier
t o remove from paint that is waxed
often .
& WARNING
Alway s read and heed all WARNING S and other information
~ page 200 .
0 Note
Do not use car wax on
• matte or anodized metal trim
• rubbe r or rubber -like trim .•
Polishing
P olishing restores the gloss to the paint.
Polish your veh icle on ly if t he pa in t has lost its shine and the g loss
cannot be brought back with wax.
If the polish used does not contain preservative compounds, the
paint mus t be wax ed afterwards ~
page 203, "Waxing".
& WARNING
Always read and heed all WARNINGS and the information
~ page 200 .
0 Note
Do not treat matte anodized metal trim, p lastic or rubber parts with
polish or wa x.•
Trim strips
Met al trim nee ds s peci al care .
For environmental reasons, Audi fabricates the bright trim strips
and tr im pieces from pure chromium -free a luminum.
D irt and marks on the trim strips should be removed with a
pH ­
balanced
clean ing agen t (do n ot use a chrome cleaner) . Audi
dea lers carry cleaning products which have been tested for use on
you r vehic le and are not harmful to the env ironment.
To avoid corrosion on the exterior trim s trips, only a pH -ba lanced
solution should be used for the windshield washer .
& WARNING
Always read and heed all WARNINGS and other inform ation
~ page200 .•
Plastic and vinyl
Plas tics needs spe cial care.
Use a clean, damp cloth or sponge to remove dust and light surface
dirt. For other soil, use a lukewarm all -purpose cleaning so lution or
a mild sadd le soap for vinyl tr im . Re move water spots and soap
traces with a clean, damp cloth or sponge. Use a clean, soft c loth to
r ub dry .
Grease, tar or oil stains can be removed with a clean cloth or sponge
soaked wi th all-purp ose cleaner o r wi th a solven t designe d espe -
cia lly to c lean vinyl. .,.

___ C_ le_ a _ n_i_n ~g _ a_ n_ d __ p_r _o _t _e _c_ t_ i_o _n ___________________________________________ _
Never dry windows with the same chamois that you use to dry
painted s urfaces. Wax residue on the chamois can impair vision
through the windows .
& WARNING
• The windshield must not be treated with water-rep ellent mate­
r ial s. They can increa se glare under poor visibility conditions such
a s w etne ss, darkne ss, or when th e sun i s lo w on th e hori zon. In
addition , they can c ause the wind shield wipers to chatter .
• Alw ays re ad and heed all WARNINGS and oth er infor matio n
=>
pa ge 200.
0 Note
• Never use warm or hot wa ter to remove snow and ice from
windows and mirrors. This could cause the glass to crack.
• To prevent damage to t he w ires of the rear defogger, do not p lace
any adhesive stickers on the inside of the rear window over the
wires.
• To he lp prevent dirt from scratching the w indow, always scrape
in a forward direction - pushing the scraper away from you -never
back and forth .•
Weatherstrips
C omplete car care includes the weatherstrips as well.
- App ly a suitable rubber co nditioner to the weat herstr ips
f rom t ime to t ime .
To be able sea l properly, the weatherstrips around the hood, doors,
rear lid, etc. must remain pliable . Spray the weath erstrips with si li­
cone or coat them w ith ta lcum powder or glycerine to retain the
flexibili ty of the rubber and to protect them against free zing in the
winter .
& WARNING
Always read and he ed all WARNINGS and the inf orm ation
=>
page 2 00 .
[ i ] Tips
Keep si licone sp rays o ff the windsh ield to avo id wiper smear in
rain .•
A pplies to vehi cles : w it h s tee l w hee ls
Steel wheels
The wheels also have to be cleaned.
Always include the hub caps and wheel rims when
washing your vehicle to remove road dirt, sal t sprays and
brake dust.
If necessary, use a commercial wheel cleaner to remove accumu ­
l ated brake dust.
The wheel rims are eas ier to keep clean i f they are regularly coated
wi th liquid wax .
Paint scratches should be touc hed u p as soon as possible to prevent
corrosion=>
page 205, " T ouch -up paint".
& WARNING
• Moisture and ice on brakes m ay affe ct br aking efficie ncy -
=>
page 188 , "Gene ral information ". Te st the brake s carefull y after
e ac h vehi cle wa sh .
• Alway s read and heed all WARNINGS and the information
=>
pa ge 200. •

., __ C_ le_ a _ n_i_n ~g _ a_ n_ d __ p_r _o _t _e _c_ t_ i_o _n ___________________________________________ _
& WARN ING (c o ntinu ed )
• Do not apply additional und ercoating or ru stpr oofing on or
near the e xhaust man ifold , ex h aust p ipe s, ca talyt ic con verte r or
heat sh ields . W hile driving , the sub stan ce used for underco atin g
c ould overh eat and cause a fire .
• Alw ays read and heed all WARNINGS and oth er inform ation
~ p ag e200 .•
Care of interior
Aluminum trim
Use on ly neutral -pH products to remove spots and deposits from
a luminum surfaces. Chrome care products and alka line cleaners
wi ll attack aluminum surfaces and can damage them over t ime.
& WARNING
Alway s read and heed all WARNIN GS and the inform ation
~ page 200 . •
Fabrics and fabric coverings
Fabrics and fabric coverings (e .g. seats, door trim pane ls, etc.)
should be cleaned at regu lar intervals with a vacuum cleaner. This
removes surface dirt particles which could become embedded in
the fabric through use . Steam c leaners should not be used, because
the steam tends to push the dirt deeper into the fabric and lock it
there .
Norm al c leanin g
Generally, we recommend using a so ft sponge or a l int -free
microfiber cloth to the clean fabric. Brushes should only be used for carpets and floor mats, since other fabric surfaces could be harmed
b
y brushes .
Normal surface stains can be cleaned using a commercially avail­
able foam cleaner . Spread the foam on the surface of the fabric with
a soft sponge and work it in gently. Do not saturate the fabric. Then
pat the foam dry using absorbent, dry cloths (e.g. microfiber c loth)
and vacuum it af ter it has dried complete ly .
C leaning st ains
Stains caused by beverages (e.g . coffee, fruit juice, etc.) can be
treated with a mild detergent solution. Apply the detergent so lution
with a sponge . In the case of stubborn stains, a de tergent paste can
be applied directly to the stain and worked into the fabric. After ­
wa rds, use copious amounts of clean wa ter to remove the
remaining detergent . App ly the water with a damp cloth or sponge
and pat the fabric dry w ith an absorbent, dry c lo th.
Stains from choco late or makeup shou ld have detergent paste (e .g.
ox -gall soap) rubbed into them . Afterwards, remove the soap with
water (damp sponge).
Alcoho l can be used to treat stains from grease, oi l, lipstick or a ba ll­
point pen . Melted grease or dye must be patted off using absorbe nt
material. It may be necessary to retreat the areas with detergent
p aste and wa ter.
I n the case of general soiling of the upholstery and cover material,
we recommend hiring a specialist that has the equipment to clean
the seat covers and other fabr ic surfaces by shampooing and spray
extraction.
& WARNING
Alway s read and heed all WARNINGS and the information
~ page 200 .