2008 AUDI TT ROADSTER brake fluid

_____________________________________________ C_h_ e;::..:. c:..:..k :..:..in ;..:..= g:.....:.; a:..:..n :....:d :..:....:. f.:.:il .:.:li :..:..n :.::g:!-_ ___,J-
& WA RNING !continued )
-First, fully apply the parking br ake , move selector lev er of
automatic tran smi ssion to "P " (P a rk ); put manu al tran smi ssio n
in Neutral.
- Alw ays use extreme c aution to p revent clothing, j ewelry , or
long hair from getting caught in the radi ator fan , V -belts or
other moving pa rt s, or from c onta cting hot parts. Tie b ack hair
before starting , and wear no cloth ing th at will hang or droop
into the engine.
• Minimize exposure to emi ssion and ch emical hazards
:=> & .
& WARNING
California Propo sition 65 Warning :
• Engine exha ust , some of its constituent s, and certa in vehi cle
c omponents contain or emit chemical s known to the State of Cali ­
fornia to cause cancer and birth defe cts and reprodu ctive harm . In
addition , certain fluid s cont ained in vehicle s and certain produ cts
of compone nt wear contain or emit chemi cals known to the State
of Cal ifornia to cause cancer and birth defe cts or oth er repr oduc ­
tive ha rm.
• Battery post s, terminals and related ac cess ori es conta in lead
and le ad compou nds , c hemic als kno wn to th e St ate of California
to c ause cancer and reproductive harm s. Wa sh hand s after
ha ndling.
0 Note
When adding fluids , always make sure that they are poured into the
proper container o r filler opening, otherwise ser ious damage to
vehicle systems will occur .
ffi For the sake of the environment
To detect leaks in time, inspect the vehic le floor pan from under­
neath regularly. If you see spots from oil or other vehicle fluids, have
your vehicle inspected by an authorized Aud i dealer .•
Engine compartment
Ap plies to vehic le s: wit h 1.8 I1 80-h p engi ne
2.01 200 -hp engine
These ar e the most im por tant i tems tha t yo u can check.
Fig . 149 En gine c omp art men t: 2.01 200 -hp engine
0 Coolan t expansion tank (J_ ) ..... .... ........ ..• ..
0 Engine oil filler cap(~) ... ... .. .. .... .... ... ... .
© Engine oil dipstick (orange) ........ ....... ..... . .
© Brake fluid reservoir ( ) . .... .. ... .. ...... ... ... .
Vehic le care I I
228
225
224
230 .,.
irechnical data

-Checking and filling P'll:I ---=---------------
© Jump start points(+) under a cover, ( -) bolt head
© Windshield/headlight washer container ( O ) .. ... .. .
& WARNING
Before you check anything in the engine compartment, always
read and heed all WARNINGS
~ & in "Wo rking in the engine
compartment" on page
220. •
Applies to v ehi cles: with 3,2 1 250 -h p eng in e
3 .21 250 -hp engine
279
236
These are the most important it ems that you can check.
Fig . 150 Engine compartment: 3.21 250-hp engine
G) Coolant expansion tank (J -) ..... ... .. ..... .. ... .
0 Engine oil dipstick (orange) . ... .. ...... ........ . .
© Engine oil filler cap ( © Brake fluid reservoir ( ) ............. .... .. .. .. .
228
224
225
230
© Jump start points(+) under a cover,( -) bo lt head ... .
© Windshield/headlight washer container (O ) .. .... . .
& WARNING
Before you check anything in the engine compartment, always
read and heed all WARNINGS
~ & in "Working in the engine
compartment" on page
220. •
Engine oil
Engine oil specifications
279
236
The engine oil used in your Audi needs the right kind of
oil.
The engine in your Audi is a sophisticated powerp lant that was built
to exacting specifications. This engine needs the right kind of
engine oil that meets specifications regarding quality and viscosity
so that it can run smoo thly and re liably. Choosing the right oil and
changing oil wi thin the time and mileage interva ls printed in your
vehic le's Maintenance
& Warranty booklet matters a lot more today
than it did years ago. Audi has developed a special quality standard
for engine oil that will help assure that your vehicle's engine will get
the lubrica tion it needs for proper operation.
Modern engine lubrication has taken a quantum leap in the last few
years. Many synthetic oils available today provide better engine
lubrication that can outlast traditional petroleum -based oils,
making them a smart choice for use throughout the life of your Audi.
Whether you use synthe tic or petro leum-based engine oil, the oil
that you use must conform to Audi's oil quality standard VW 502 00
to help keep your vehicle's engine running smoothly and help prevent the formation of harmful deposits, sometimes called
"sludge,' ' that over time can lead to expensive repairs. •

___ 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 : .,,_

Checkin g and fillin g ---------------~-!':WIii
•
& WARN ING (co ntinued)
- Use only br ake flu id th at m eet s SAE spec ificati on J 1703 and
c onf orms to F ed eral Motor Vehi cle St and ard 11 6. Always ch ec k
w ith your a uthori zed A ud i de aler to m ake sure you are u sin g
the corre ct brake fluid . Th e co rrect typ e of br ake fluid i s also
indic ate d on the br ake fluid res ervo ir .
- The br ake fluid mu st be ne w. Heavy u se of the br ake s c an
c au se a vapor lo ck if the brake fluid i s left in the s yste m too
long. Thi s ca n seriou sly affe ct the eff iciency of the brake s as
w ell as your safety . This could resu lt in an a ccident .
0 Note
Brake fluid wi ll damage the paint of your vehicle.
Because of the prob lem of proper disposal of brake fluid as well as
t he special too ls required and the necessary expertise, we recom­
mend that you have the brake f luid changed by your authorized Audi
dea ler .•
Battery
General information
Your vehicle is equipped with a specia l battery, an AGM battery. This
battery is located in the luggage compartment and must be
replaced with an origina l equipment battery. Under normal oper ­
ating conditions, the battery is
maintenan ce-free .
Have the battery checked when you take your vehicle in for service.
You a re we ll advised to replace a battery that is olde r th an 5 years .
Disc onn ectin g th e batt ery t erm inal s
Some vehic le functions (power window regulators, for e xample) are
lost if the battery terminals are disconnected. These functions have
to be relearned after the batte ry term inals are connected again. To
prevent this, the battery should only be disconnected from the
vehicle electrical system when abso lutely necessary for repairs.
V ehi cle s not dri ven for long period s
If you are going to le t your vehicle stand for a long t ime a nd not
drive it, you should remember there are electrica l components
which are still functioning and they will draw energy from the
battery and drain it, for examp le, the engine immob ilizer. To prevent
this, you can either charge the battery occasionally to keep it in
good working condition or you can d isconnect the negative cab le
on the battery.
W inter op era ti on
During the winter months, battery capacity tends to decrease as
temperatures drop. This is because more power is a lso consumed
while starting, and the headlights, rear window defogger, etc., are
used more often .
Avoid unnecessary power consumption, particularly in city traffic or
when trave ling on ly shor t distances . Let your au thorized Audi dea ler
check the capacity of the vehicle battery before winter sets in
=>
page 235 . A well charged battery will not on ly prevent start ing
p rob lems when the weather is cold , but wi ll a lso last longer .
Replacing battery
The new battery must h ave the same capacity, voltage (12 volts},
amperage, construction and p lug sea ling, as the origina l battery.
Specifications are l isted on the battery hous ing. Batteries specially
developed by Audi fulfill the ma intenance, output, and safety
requirements.
When installing the battery, make sure the ignition and all electrical consumers are switched off=>
0. .,_
Vehicle care I t •

-~_T_ ir_e_ s_ a_ n_d _ w_ h_ e_e _l_s _________________________________________________ _
Tires and wheels
Tires
General notes
Tires may be the least appreciated and most abused parts
of a motor vehicle.
Tires may be the least appreciated and most abused parts of a
motor vehicle. Tires are, however, one of the most important parts
of a vehicle, particu larly considering the comparatively small patch
of rubber on each tire that assures that all -important contact
between you, your vehic le and the road.
Maintaining the correct tire pressure, making sure that your vehicle
and its tires do not have to carry more weight than they can safely
handle, avoiding damage from road hazards and regularly inspecting tires for damage inc luding cuts, s lashes irregular wear
and overa ll condition are the most important things that you can do
to help avoid sudden tire failure including tread separation and
blowouts.
A vo iding d am age
If you have to drive over a curb or similar obstac le, drive very slowly
and as close as possible at a right angle to the curb.
A lways keep chemica ls including grease, oi l, gaso line and brake
fluid off the tires.
Inspect the ti res regu larly for damage (cuts, cracks or b listers, etc.l .
Remove any foreign bodies embedded in the treads.
Storing tir es
Mark tires when you remove them to indicate the direction of rota ­
t ion. This ensures you to be able to mount them correctly when you
reinstal l them. When removed, the wheels or tires shou
ld be stored in a coo l, dry
and preferably dark place.
S tore tires in a vertical pos it ion if they a re not mounted on r ims, in
a horizonta l position if they are mounted on rims.
New tir es
New tires have to be broken in=>&.
The tread depth of new ti res may vary, according to the type and
make of tire and the tread pattern.
H idd en damage
Damage to tires and rims is often not readily visible. If you notice
unusual vibration or the vehicle pu lls to one s ide, this may indicate
that one of the tires has been damaged . The tires must be checked
immediately by an authorized Audi dealer or qualified workshop .
Unidire cti ona l t ires
A unidirectional tire can be identif ied by arrows on the sidewa ll, that
point in the direction the tire is designed to rotate . You must fo llow
t he specified directio n of rotation . This is necessary s o that these
tires can develop their optimum characteristics regarding grip, road noise, wear and hydrop laning resistance . For more information
=>
page 272.
& WARNING
New t ires o r ti re s th at a re old , worn or d am aged cann ot pro vid e
maximum cont rol and braking ability .
• New tires te nd to be slippery and mu st be bro ken in . To redu ce
the ri sk o f lo sin g co ntro l, a collis ion and serious per sonal injurie s,
dri ve w ith special care f or the fi rst 350 m ile s ( 560 km l.
• Driving w ith w orn or damaged tire s can lead to lo ss of control ,
sudd en tir e fa ilure , inc ludi ng a blowout a nd sudden defl atio n, ..,_

__________________________________________________ T_ ir_e _ s_ a_ n _ d_ w_ h_ e_ e_ls _ ____. 111111
Unbalanced wheels must be rebalanced to avoid excessive wear on
steering, suspension and tires. A wheel must also be rebalanced
when a new tire is installed.
Incorrect wheel alignment
Incorr ect wheel alignment can cause excessive tire wear, impairing
the safety of the vehicle. If tires show excessive wear, have the
wheel alignment checked by an authorized Audi dealer or qualified
workshop.
All Wheel Drive
Vehicles with quattro ® must always have tires of the same size,
construction and tread type. For details see
=> page 191.
& WARNING
Sudden tire failure can lead to loss of control, a crash and serious
personal injury!
• Never drive a vehicle when the tread on any tire is worn down
to the wear indicators .
• Worn tires are a safety hazard, they do not grip well on wet
roads and increase your risk of "hydroplaning" and loss of control .
• Always keep chemicals that can cause tire damage, such as
grease, oil, gasoline and brake fluid away from tires .
• Tires age even if they are not being used and can fail suddenly,
especially at high speeds . Tires that are more than 6 years old can
only be used in an emergency and then with special care and at
lower speeds.
• Never mount used tires on your vehicle if you are not sure of
their "previous history ." Old used tires may have been damaged
even though the damage cannot be seen that can lead to sudden
tire failure and loss of vehicle control. •
New tires and replacing tires and wheels
New tires and wheels have to be broken in.
Fig. 164 Tire specification codes on the sidewall of a tire
No.
©
0
©
©
©
©
Description
Passenger car tire (where app licable)
Nominal width of tire in mi llimeters
Ratio of height to width (aspect ratio)
Radial
ii Rim diameter code
Load index and speed rating
Vehic le care
I I irechnical data

___ A---" lp_h_ a_b_ e_ t_ i_ c _ a_ l_ in_d_ e_x ______________________________________________ _
A
A/C operation
Climate control
ABS 102
See Anti -Lock Brake System . . . . . . . . 189
Accessories . . . . . . . . . . . . . . . . . . . . . . . . 296
Acoustic park assist rear .. .... .. ... ... ....... .... .. .
Acoustic parking system
Adaptive Light 109
109
defective . . . . . . . . . . . . . . . . . . . . . . . . 36
Adaptive light . . . . . . . . . . . . . . . . . . . . . . . 72
Adding Engine coolant ... .... ........... 228
Engine oil ....................... 225
Windshield washer fluid . . . . . . . . . . 236
Additiona l accessories .. ...... ...... . 296
Additives Engine oi l ....................... 225
Adjustable steering column .......... 105
Adjusting front seats ... .. .... .... .... 87
Adjusting steering column ...... .. ... 105
Adjusting the seats ...... .... ........ 89
Advanced Airbag System Children ........................ 169
Components .. .................. 153
Front airbags ......... .... ...... . 151
How the components work together 154
Monitoring . . . . . . . . . . . . . . . . . . . . . . 157
Weight -sensing mat .. .. .. .... .... 169 Air distribution
Climate control
Air recirculation mode Climate control ...... .... ... .. .. .
Air vents Climate control
Airbag 101
102
102
Warning/indicator lights ..... ...... 19
Airbag system . . . . . . . . . . . . . . . . . . 146, 165
Care ... ........... .... .... ...... 160
Child restraints ............ .... .. 170
Components (front airbags) .. ... ... 153
Danger of fitting a child safety seat on the front passenger seat . . . . . . . . . . . . 147
Disposal . . . . . . . . . . . . . . . . . . . . . . . . 160
Front airbags ................. ... 150
How do the front aiirbags work? . . . . 155
How many airbags does my vehicle have?
153
Important safety instructions on the knee airbag system .......... ....... . 163
Important things to know ......... 146
Indicator light .. ..... ....... ..... 157
Knee a irbags .. ...... ......... ... 161
Monitoring . . . . . . . . . . . . . . . . . . . . . . 157
PASSENGER AIR BAG OFF light ... .. 157 Alternator
See Generator . . . . . . . . . . . . . . . . . . . . 19
Anti -freeze
See Engine coolant system ...... .. 227
Anti-glare inside day-night mirror ...... 82
Anti-Lock Brake System .............. 189
Anti -lo ck brake system
Warning/indicator lights . ...... .... . 20
Anti-Slip Regulation System (ASR) How the system works . . . . . . . . . . . . 186
Anti-theft systems Anti-Theft Alarm System ........... 56
Electronic immobilizer ............. 49
Ashtray .............. ........... .... 94
ASR How the Anti-Slip Regu lation System
works ......................... 186
Asterisk What does it mean when something is
marked with an asterisk? ... .... .... 6
Audi magnetic ride .... .... ..... .. 17, 112
Description .... .... .... ...... .... 112
Indicator light .... .... ............ 17
Audi Service Repair Manuals and Literature .
294
Repairs .. .... ....... ...... .... .. 160 Auto Safety Hotline . .... .... .... ..... 136
Side airbags . ........ ....... ..... 164 Auto-Check Contro l ................... 29
When must the system be inspected? . . . Automatic transmission ............ 31
157 Auto-Check -Control
All Wheel Drive . . . . . . . . . . . . . . . . . . . . . 191
Alloy wheels . . . . . . . . . . . . . . . . . . . . . . . 207 Manual
transmission
Automatic belt retractor 31
141
air conditioning All-wheel drive Automatic car wash
Temperature .. ............ ... ... 100 Winter tires ..................... 254 See Washing .................. .. 201

______________________________________________ A_ l.:.. p _h_ a_ b_e _t_ic _ a _ l _in _ d_e _ x __ _
Automatic folding top
closing .. .... .... ....... ..... ... . 62
opening ... ... ... .... .... ... .... .. 62
Automatic headlight control .. ......... 70
Automatic transmission .. .... .... .... 113
Driving Notes ......... .... .. ..... 114
Emergency program .... ...... .... 119
Emergency release . . . . . . . . . . . . . . . 120
Ignition key safety lock . ...... ..... 106
Kick -down .. ... .. .... .... ...... .. 117
Launch Control Program ........... 117
Selector lever lock ........ .... .... 116
Selector lever positions .... ..... .. 115
Tiptronic ... .. .... .... ... .... .... 118
Tiptronic controls on the steering wheel
119
Average speed ... ... ..... ... .... .... . 39
Avoid damaging the vehicle ..... .... . 194
B
Battery .. ... .... .... .... ..... .. 231, 234
Battery location inside the engine
compartment . ...... .... .... 221, 222
Charging ........................ 235
Checking battery acid level .. .. 234, 235
Connecting ...................... 231
Disconnecting .... .... .... ...... . 231
Important warnings when working on the
battery ........................ 232
Replacing the battery .. .......... . 231
Winter operation ................. 231
Working on the battery ... .... .... . 232
Battery voltage . .... .... .... ... .... .. 35
Controls and equip­
ment Safety first
Before
driving . .... . .. ... ... ........ 128
Bi -Xenon headlights .................. 75
Blended gasoline . ... .... .... .... .... 214
Body cavity sealing ...... ...... ... .. . 207
Booster seats .. ...... .... .... .... ... 175
How do I properly install a booster seat in
my vehicle? . .......... .... ... .. 175
Safety instructions . .... .... ... .... 175
Brake fluid Changing the brake fluid .. ........ 230
Checking the brake fluid level ...... 230
What is the correct brake fluid level? 230
What should I do if the brake fluid warning
light comes on? ... .. .... .... .... 230
Brake fluid reservoir . ...... ...... .... 230
Brake light defective ........ .... .... .. 36
Brake system ... ... .. .... ........ 32, 230
Anti-lock brake system .. ....... .... 20
Brake Assistant ........ ... .. .... . 189
Brake fluid ................... .... 230
Brake f luid specifications for refill and
replacement .... ...... ...... .... 230
Brake pads ... ... .... .... .... .... 193
General information .............. 188
How does the moisture or road sa lt affect
the brakes? ..... ...... ...... .... 188
Warning/indicator lights .. ...... .... 20
Break -in period ...... ...... ... .. .... 192
Brake pads ...................... 193
Tires .. .... .... ... .... .... .... ... 192
Bulbs .... ... .... .. . .. .............. 277
C
California Proposition 65 Warning . .... 221
Battery specific .... ... .... .... .... 234
Capacities ... .... ........ ... .... .... 291
Car care ... .... ... .. .... .... .... .... 200
Interior ..... .... .. .... ........... 208
Plastic and vinyl .................. 204
Weatherstrips ..... .... ...... ..... 206
Care of exterior .. .... ....... ........ 200
Cargo area
See Luggage compartment . ... .... . 135
Catalytic converter ...... .... .... .... 193
CD changer ..... .... .... .... .... ..... 96
Certification ...... ... .... ...... ...... 45
Changing a flat tire ... .... .... ....... 267
Changing engine oil ............. .... 226
Chassis Undercoating .... ..... ... .... .... 207
See also Audi magnetic ride .... .... 112
Check ing
Battery acid level ......... ... . 234, 235
Engine coolant level .............. 228
Checking tire pressure . ... .... .... ... 244
Child restraint
Danger of using child restraints in the front seat .... ... .... .... .... ... 147
Child restraints Where can I get additional information
about chi ld restraints? ... ........ 180
Child safety ...... .... ... .... ... 168, 173
Booster seats .... .... .... .... ... . 175
Convertible child safety seats ... ... 174
Vehicle operation Vehicle care Do-it-yourself service Technical data