2008 AUDI TT ROADSTER brake fluid

Knee airbags . . . . . . . . . . . . . . . . . . 161
Side airbags . . . . . . . • . . . . . . . . . . . 164
Child Safe ty . . . . . . . . . . . . . . . . . . . . 168
Important things to know . . . . . . . 168
Important safety instruct ions for
using child safety seats ........ .
Child safety seats .. ...... ..... .
Insta lling a ch ild safety seat .... .
Add it ional Information .... ... .. .
Vehicle operation ....... .
Intelligent technology ......... .
Notice about da ta recorded by
veh icle contro l modules ....... .
Electronic Stab ilizat ion Program
(ESP) ... ... ... ... .... .... .. ... .
Rear spoiler .................. .
Braking .................... .. .
El ectro -mechanical power assist .
Driving with your quattro® ..... .
Driving and environment .... . .
171
173
177
180
183
184
184
184
187
188
190
191
192
The first 1,000 miles (1,500 km) and
afterwards . . . . . . . . . . . . . . . . . . . . 192
Cata lytic converter . . . . . . . . . . . . . 193
Avoid damaging the vehicle . . . . . 194
Operate your vehicle economically
and minimize pollution ... .. ... . 194
Trailer towing . . . . . . . . . . . . . . . . . . 196
Vehicle care ..... ... ... ... .
C leaning and protection ...... .
General information
Care of exterior ............ .... .
Care of interior .. .. .. .... ... .. . .
Fue l supply and filling your fuel
tank .. ... ... ... ... ...... .... .. . .
Gasoline .... ...... ........•. ...
Fuel tank ..................... .
Checking and filling ...... ... .. .
Eng ine hood ... ........ ....... .
Engine compartment .......... .
Engine oil ........ ... ...... .... .
E ngine cooling system ......... .
Brake fluid ..... .. ... ... ...•. ...
Battery . ...... .. .. .......... .. .
W indshield/headlight washer
conta iner .. .... ... ... .. ... .. .. .
Tires and whee ls ...... ..... ... .
T ires . ............ ...... · ·, · · · ·
Run -flat tires ......... ... .... .. . 199
200
200
200
208
214
2 14
2 15
2 19
219
221
222
227
230
231
236
238
238
257
Table of contents
Do-it-yourself service .. . 261
What do I do now? . . . . . . . . . . . . . 262
Trunk escape handle . . . . . . . . . . . . 262
Veh icle tool kit . . . . . . . . . . . . . . . . . . 262
T ire repair . . . . . . . . . . . . . . . . . . . . . . 263
What should I be aware of when
changing a tire? . . . . . . . . . . . . . . . . 267
Fuses and bulbs ................ 273
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Bu lbs ......... .. ... .... ... ..... 277
Emergency situations . . . . . . . . . . 278
Genera l . . . . . . . . . . . . . . . . . . . . . . . . 278
Starting by pushing or towing . . . . 278
Starting with jumper cables . . . . . . 278
Use of jumper cables . . . . . . . . . . . . 279
Emergency towing with commercial
tow truck . . . . . . . . . . . . . . . . . . . . . . 281
Lif ting vehicle . . . . . . . . . . . . . . . . . . 283
Technical data
General information
287
288
Explanation of technical data 288
Vehic le identif ication . . . . . . . . . . . . 288
Vehicle care I I irechnical data

Instruments and warning/indicator lights
Brake system BRAKE (USA)/ (CD) (Canada)
This warning/i ndi cat or light illumina tes whe n th e brake
fluid level i s to o low or w hen t here is a malfuncti on in the
ABS , or w hen the pa rkin g br ake is set.
The ligh t illumin ates when the igniti on is turned on . It goes out aft er
th e engine has been started and the parking brake is fu lly r eleased.
Th is i ndicates that t he bra ke w arning ligh t is f uncti oning properly .
If the brake warning light does not light up when the engine is
cranking or the parking brake is applied , there may be a malfunction
in the electrical system. In thi s case , contact your Audi dealer.
When the light com es on, an acoustic warn ing signa l will sound .
Parking brake set
The BRAKE warning/indicator light illuminates when the parking
br ak e i s set :::::,& .
& WARNING
• USA model s.~ If both , the BRAKE warning light and the ~
warning light come on at the same time , the rear wheels could
lock up first under hard braking . Lo ck-up of the rear wheel brakes
can cause loss of vehicle control and an accident . Have your
vehicle repaired immediately by your authorized Audi dealer or a qualified workshop . Drive slowly and avoid sudden, hard brake
application.
• Canada models : If both , the b rake warning light
((j)) and the ABS
warning light come on at the same time , the rear wheels could
lock up first under hard brak ing . Lock -up of the rear wheel brakes
c an cause loss of vehicle control and an accident. Have your
vehi cle repaired immediately by your authorized Audi dealer or a
qualified workshop . Drive slowly and avoid sudden , hard brake
application
• If the brake warning /indicator light does not go out after a few
seconds and the parking brake released , or lights up while you are
& WARNING (continued)
driving , the fluid level in the brake fluid reservoir is too low . If you
believe that it is safe to do so, proceed immediately at low speed
to the nearest authorized Audi dealer or qualified workshop and
have the brake system inspected.
• Please be very careful and always keep in mind that after
several brake applications, you will need greater pressure on the
brake pedal to stop your vehicle . Consequently , you must allow for
increased braking distances. Trying to brake as qui ckly as usual
c ould lead to an ac cident . •
Anti-lock brake system 8 (USA)/
~ (Canada)
This warni ng /ind icato r lig ht moni tors the AB S and the
electronic differenti al lock (EDL).
The light will come on for a few seconds when the ignition is
switched on. The light wil l go out after an automatic check sequence
is completed.
There is a malfunction in the ABS when :
• The warnin g/i ndica to r l ight do es no t illumin ate when you swi tch
on the ignition .
• The warn ing/i ndi cator lig ht does not go ou t after a few seconds .
• T he warning/indicator l ight il luminates whi le driving.
The brake system will still respond even without the assistance of
the ABS system. See your authorized Audi dealer as soon as possible to restore full braking performance . For more in for mati on
regarding t he ABS=> page
189.
The ABS warning l ight and the brake warning light come on
together . The ABS will not work and you will notice a change in
braking response and performance .

Driver information system
When a red symbol appears, a warning tone will sound consecu­
tively
three times. The symbol continues to flash until the malfunc­
tion has been repaired. If there are
more than one priority 1 malfunc­
tions, the symbols appear one after the other for about two
seconds.
[ i] Tips
• 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 symbol is shown in the field above. •
Brake system malfunction
BRAKE (USA models) /
(CD) (Canada models)
A malfunction in the brake system must be repaired as
soon as possible.
When BRAKE/ (CD) (Canada models) appears in the display
and flashes, this means there is a malfunction in the brake
system. In addition to the symbol, one of the following two
messages also appears in the display:
STOP VEHICLE AND CHECK BRAKE FLUID
ABS FAULT! SEE OWNER'S MANUAL
- Pull of the road and stop the vehicle.
- Check the brake fluid level=>
page 230.
USA models: if there is a malfunction in the ABS system, the i:i
warning/indicator light illuminates along with the BRAKE system
malfunction warning/indicator light=>&.
Canada models: if there is a malfunction in the ABS system, the
warning/indicator light illuminates together with the ID brake
system malfunction warning/indicator light=>& .
& WARNING
• Always observe the warnings in=> page 212, "Engine compart­
ment", before opening the engine hood and checking the brake
fluid.
• Driving with low brake fluid is a safety hazard! Stop the car and
get professional assistance .
• If the brake system warning/indicator light illuminates
together with the ABS warning/indicator light, then the ABS
system is malfunctioning. The rear wheels could quickly lock up
when you apply the brakes. This could lead to loss of control _and
your vehicle could slide! Drive carefully to the nearest authorized
Audi dealer and have the malfunction corrected. •
Engine cooling system malfunction _t_
A malfunction in the engine cooling system must be
repaired as soon as possible.
When the _t symbol in the display flashes, then either the
engine coolant
temperature is too high, or the coolant level
is too low. In addition to the symbol, the following message
also appears in the display:
SWITCH OFF ENGINE AND CHECK COOLANT LEVEL
-Pull off the road and stop the vehicle .
Turn off the engine.
Check coolant level =>
page 228.
Add coolant if necessary => page 228.
-Continue driving only after the engine coolant
warning/indicator light goes out.

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. •

Fuel supply too low [J
When the J symbol illuminates, this means there is about 1.8
gal lons
(7 l iters) o f fue l left in the fuel ta nk. T ime to re fuel!
=>
page 275.
I f the symbo l lights up, even when there is ample fuel in the tank,
and the text
TANK SYSTEM MA LFUN CTION! CON TACT WORKSHOP
appears in the display, there is a fau lt in the system. Contact a qual ­
ified workshop to have the fau lt rectified. •
Checking the engine oil level _,;.
When the -= symbol illuminates, check the engine oil leve l as soon
as possib le =>
page 224. Top off the oil at your ear liest opportun ity
=>
page 225. •
Engine oil sensor defective
-
If the _ symbol illuminates, contact your authorized Audi dealer
and have the oil sensor inspected . Unti l you have this done, check
the oi l leve l each time you re fue l jus t to be on the sa fe s ide
=>
page 224 . •
Worn brake pads .)
If the symbo l illuminates, contact your authorized Audi dea ler to
have the front bra ke pads inspected (on that occasion have the rear
brakes inspected as wel l to be safe). •
Controls and equip ­
ment
Driver inform ation system
Speed warning 1
~ (USA models) / ~ (Canada
models)
I f the ~ symbo l illuminates, this means you are d riving faste r than
the set vehicle speed . Slow down!=>
page 37. •
Speed warning 2
-.... (USA models) /
l.,... (Canada models)
If the C) symbol il luminates, this means you have driven faster than
the sec ond set vehic le s peed. Slow d own! =>
page 37. •
Applies to veh icles : wi th dynami c he ad light r ange ad just ment
Headlight range control defective
If the il luminates, the dynamic head light range control is no
longer working pr ope rly. Have the syste m checked and repa ired at
your authorized Audi dea ler .•
Windshield washer fluid level too low .-_j
If the ~ symbol illuminates, add windshie ld washer fluid to the
washer sys tem =>
page 236 . •
Battery voltage low ~
If the C sy mb ol illu min ates, co ntact your au thori ze d Audi dealer
and have the following components inspected:
• drive belt
• generator
• b att e ry charge
I • •

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

___ C _l_e _a _ n_ in_g ~_ a_n _ d ___ p ___ r_ o _t _e _c_ t_ i_o _ n _____________________________________________ _
Cleaning and protection
General information
Regular care preserves vehicle value.
Any automobile is exposed to industrial fumes, corrosive road salt,
muddy dog feet, etc . A wel l cared for Audi can look like new many
years after purchase. Regu lar and correct ca re will contribute to
maintaining the beauty and value of your Audi.
Furthermore, good care may be a conditi on for substantiating a
war ranty claim should co rros ion d amage or p aint defec ts occur .
Your authorized Audi dealer has a variety of dedi cated vehicle- care
product s
and can advise whic h ones to use for cleaning the exterior
and interior of your vehicle.
Whether you use p roducts recommended by Audi or other commer ­
cially availab le cleaning agents , please make sure you apply them
correctly.
& WARNING
• Cleaning agents may be poisonous . Keep them out of the reach
of ch ildren .
• Heed all caution label s.
• Alway s read directions on the contai ner before u sing any
produ ct. Follow the di rection s carefull y.
• Most chemical cleaner s are concentrated and have to be
d iluted .
• Use s pot removing fluids only in well ventilated area s.
• Do not us e gasoline , ker osene , die sel fuel , nail polish rem over
or oth er volatile fluid s. They may be toxi c, flammable or ha zardous
in other way s. Do n ot w ash, wa x or dry the vehicle w it h the igni ­
tion on or the engine running.
& WA RNIN G (conti nued)
• Do not clean the under side s of chassis , fe nder s, wheel cove rs,
etc . without protecting your hands and arm s. You may cut yourself
on sha rp -edg ed metal part s.
• Moisture and ice on brakes may impair braking eff iciency
=> page 188 , "General info rm ation ". Test the brake s carefully each
time you wa sh the vehicle.
~ For the sake of the environment
Se lect only environmenta lly friend ly c leaning products . Leftover
clean ing products should not disposed of in the household waste. •
Care of exterior
Washing
Frequent washing protects the vehicle.
Th e best protection against envi ronmental influences is frequent
washing and waxing .
H ow often t his is required depends on:
• H ow much the vehic le is used
• Where the vehicle is pa rked (garage, in the open under t rees,
etc.)
• The seasonal and weather conditions
• Environmental influences
T he longer bird droppings, insects, tree resin, road a nd industrial
grime, tar, soot, road salt and other materials remain on the vehicle
p aint, the more lasting their dest ructive effects will be . _,,,

-~_C_ h_e _c _ k_ i_n ...:::g::;...._ a_n_ d_ f_ i_ll _in -'g:::;.._ ___________________________________________ _
Closing the engine hood
- Pull the hood down until the pressure from the struts is
reduced.
- Let the hood
drop down and latch in place. Do not try to
push it shut;
it may fail to engage~& .
& WARNING
A hood that is not completely latched could fly up and block your
view while driving.
• When you close the engine hood, check it to make sure the
safety catch has properly engaged. The hood should be flush with
the surrounding vehicle body parts.
• If you notice while driving that the hood is not secured prop­
erly, stop at once and close it. •
Working in the engine compartment
Be especially careful whenever you work in the engine
compartment!
Whenever you must perform any work in the engine compartment,
for example checking and filling the different fluids, there is a risk of injury, burns and accidents. To prevent personal injury always
observe the following WARNINGS. The engine compartment of any
vehicle is a hazardous area!
=> &
& WARNING
To help avoid injury, before you check anything under the hood :
• Switch off the engine.
• Remove the ignition key.
• Apply the parking brake.
& WARNING (continued)
• Move selector lever of automatic transmission to "P" {Park);
put manual transmission in Neutral.
• Always let the engine cool down. Hot components will burn
skin on contact.
• To reduce the risk of being burned, never open the hood if you
see or hear steam or coolant escaping from the engine compart­
ment. Wait until no steam or coolant can be seen or heard before
carefully opening the hood .
• Keep children away from the engine compartment.
• Never spill fluids on hot engine components. They can cause a
fire.
• Never touch the radiator fan. The auxiliary electric fan is
temperature controlled and can switch on suddenly.
• Never open the coolant reservoir cap when the engine is still
warm. The coolant system is pressurized and hot coolant could
spray out.
• Protect your face, hands and arm from steam or hot engine
coolant by placing a thick rag over the cap when you open the
coolant reservoir.
• If work on the fuel system or the electrical system is necessary:
- Always disconnect the battery .
- Never smoke or work near heaters or open flames. Fluids in
the engine compartment could start a fire.
- Keep an approved fire extinguisher immediately available.
• To avoid electrical shock and personal injury while the engine
is running or being started, never touch :
- Ignition cables
- Other components of the high voltage electronic ignition
system.
• If you must perform a check or repair with the engine running: .,_