2009 AUDI A4 CABRIOLET brake fluid

___ C_ o_n_ s_ u_m _ e_ r_ ln_ f_o _r_m _ a_ t_ i_o _n ______________________________________________ _
& WARN ING (continued )
• The engine compartment of any motor vehicle is a potentially
hazardous area . Never reach into the area around or touch the
radiator fan . It is temperature controlled and can sw itch on
suddenly -even when the engine is off and the ignition key has
been removed . The radiator fan switches on automatically when
the coolant reaches a certain temperature and will continue to run until the coolant temperature drops .
• Always remove the ignition key before anyone gets under the
vehi cle .
• Always support your vehicle with safety stands if it is neces ­
sary to work underneath the vehicle . The jack suppl ied with the
vehicle is not adequate for this purpose and could collapse causing serious personal injury .
• If you must work underneath the vehicle with the wheels on
the ground, always make sure the veh icle is on level ground , that
the wheels are always securely blocked and that the engine
cannot be sta rted .
• Always make sure the transmission selector lever (automatic
transmission) is in "P " (Park position ) or Neutral (manual transm is­
sion) and the park brake is firmly applied.
W For the sake of the environment
• Cha ng ing t he e ngine sett ings will adverse ly aff ect em iss ion
l eve ls. This is detrimenta l to the environment and increases fuel
co nsu mp tio n .
• Always observe environmental regu lations when disposing of
ol d eng ine oil, u sed br ake fluid , d irty e ngin e coo la nt , spe nt batter ies
or worn out tires.
• Undeployed airba g modu les and prete nsioners might be classi ­
fied as Perchlorate Material -specia l handling may apply, see
www .dtsc.ca .gov/ hazar douswaste/perc hlorat e. When the vehic le o r
parts of the restraint system including airbag modules safety be lts
w it h pr eten sion ers ar e sc ra p pe d, a ll ap pli cab le la w s and reg ula- tions must be observed. Your authorized Audi dealer is familiar with
t
hese requi re m ents and we re co m mend th at you h ave your dealer
perform this service for you .•
Additional accessories,
modifications and parts replacement
Additional accessories and parts
replacement
Always consult an author ized Audi dealer before
pu rchasin g acc ess ori es.
Your vehicle incorporates the latest safety design features ensuring
a high standa rd o f act ive and passiv e safety .
T his saf ety coul d be compromised by non -approved changes to the
vehic le . F or t his reason, if parts have to be replace d, p lease obse rve
t h e f ollow ing po ints when i nsta lling addi tio na l acc essor ies:
App roved Aud i accessories and genuine Audi pa rts a re avai lab le
fr om autho rize d Aud i dea lers.
T hese dealers also have the necessary fac ilities, tools and trained
spec ia lists t o ins tal l the part s and accessor ie s pr oper ly .
& WARNING
Using the wrong spare parts or using non -approved accessories
can cause serious personal injury.
• Use only accessorie s expressly approved by Audi and genuine
Audi spare parts.
• These parts and accessories have been specially designed to
be used on your vehicle .
• Never install accessories such as telephone cradles or
beverage holders on airbag covers or within the airbag deploy-

llffl __ A_l-=- p _h_ a_ b_e _t_ic _ a_l _in _ d_e _x ____________________________________________ _
A
Accessories . . . . . . . . . . . . . . . . . . . . . . . . 318
Acoustic park assist . . . . . . . . . . . . . . . . . 122
Adaptive Light Air outlets
Climate controls .. .... ...... ..... 115
How should I adjus t the air outlets to de­
frost my windows as quickly as
possible? . . . . . . . . . . . . . . . . . . . . . . 115 Warning/indicator lights
... ... .... .. 20
When must the system be inspected? . ..
179
All Wheel Drive ... .... .... ...... .... 218
Alloy wheels . . . . . . . . . . . . . . . . . . . . . . . 237
defective ............. ........ .. . 34 Air quality sensor .
.... .... .... .... .. 114 All-whee l drive
adaptive light .. ... .... .... ... ...... . 79 Air recirculation
............... ..... 113
Winter tires .. ......... .... .... .. 284
Adding Engine coolant ... .... .... ...... .
259
Engine oi l ..... .... ... .... .... .. .
255
Windshield washer fluid .... .... . .
266
Additiona l accessories .. ...... ...... . 318
Additives Engine oil . ..... .. ..... ... ...... . 255
Adjusting Instrument cluster illumination .. .... 15
Steering wheel co lumn .... ... .... 118
Adjusting the seats
Manual seats ...... .... ........... 94
Advanced Airbag System . . . . . . . . . . . . 172
Children ... ........... .... ... ... 191
Components ...... .... .......... 175
Front airbags . . . . . . . . . . . . . . . . . . . . 173
How the components work together 176
Monitoring . . . . . . . . . . . . . . . . . . . . . . 179
Weight -sensing mat . .... ... .. .... 191
Air conditioning
See Climate controls . . . . . . . . . . . . . . 110
Air distribution Clima te con trols ... .... ... .... ... 114 Climate controls
...... ...... ... .. 114 Alternator
When should I use the air recircu lation?
114
Air ventilation in the glove compartment ...
108
Airbag system ..... ... .... ..... . 168, 188
Care ... ... .... .... .... .... .... .. 182
Child restraints .............. .... 192
Components (front airbags) .. ... ... 175
Danger of fitting a child safety seat on the
front passenger seat . . . . . . . . . . . . 170
Disposal . . . . . . . . . . . . . . . . . . . . . . . . 182
Front airbags . ....... ..... .... ... 172
How do the front airbags work? . . . . 177
How many airbags does my vehicle have? 175
Important safety instructions on the knee
airbag system .... .... .... .... .. 186
Important things to know ... .... .. 168
Indicator light ... .......... ... ... 179
Knee airbags .... . .. .. ........... 184
Monitoring .... .... .... .... .... .. 179
PASSENGER AIR BAG OFF light ..... 180
Repairs . . . . . . . . . . . . . . . . . . . . . . . . . 182
Side airbags . . . . . . . . . . . . . . . . . . . . . 187
See Generator . . . . . . . . . . . . . . . . . . . . 22
Anti -freeze
S ee Engine coolant system .. ...... 257
Anti-glare inside day-night mirror ...... 88
Anti-lock brake system How the ABS system works . .... ... 216
Warning/indicator lights ........... . 20
An ti- Slip Regulation System (ASR)
How the sys tem works .. ... .... ... 214
Anti-Theft Alarm System Tilt sensors ..... ....... ..... ...... 58
Anti-theft alarm system .. .. .. .... .... . 57
Anti -theft systems
Electronic immobilizer ......... .... 49
Armrest Adjusting ...... .... ..... .. ..... . 100
Storage bin
Ashtray 100
Front ....... .................... 104
Rear .......... .... .... ........ .. 105
Asterisk What does it mean when something is marked with an asterisk? . ..... ... .. 6
Audi Service Repair Manuals and Literature 316

Alph ab eti ca l ind ex -
-------------=----
AUTO
Climate controls .. ...... ..... .... . 112
Switching on .... .... .... .... .... 112
When should I use AUTO? ....... .. 112
Auto Safety Hotl ine .. ..... ... ... .... . 155
Auto-Check Control .. ... ... .... ... .. .. 28
Automat ic air recirculation ........... 114
Automatic belt retractor .... ...... .... 163
Automatic car wash
See Washing .. .... .... ... ...... .. 231
Automatic headlight con trol ....... .... 77
Automatic rollover protection system . . 156
Automatic Shift Lock (ASLl ....... 128, 135
Automatic transm ission
6 -spe ed automatic transmission .... 126
Automatic Shi ft Lock (ASLl .... . 128, 135
Driving ........ ..... ....... ..... 126
Dynamic shif t prog ram ... .... .... . 129
Fail-safe mode ... ...... ........ .. 13 1
Ignition key safety lock ... ... ... .. . 119
Kick-down ... .... .... .... ... .... . 129
Manual sh ift program . ... .... .... . 130
multitronic® ... ... ... .... ... ..... 131
Se lector lever ..... .... ...... . 127, 133
Shift but tons . ... .... .... .... 131, 137
Steering wheel with tiptronic® . 131,137
Average speed ... ... ... ... .. ...... ... 37
Avoid damaging the v ehicle .. ... .... . 22 1
Controls and equip­
ment Safety first
B
Battery .
.... .... ...... .... ... .. 261, 264
Charging ...... .. ... ..... .. .. .... 265
Checking battery acid level . .... .... 264
Important warnings when working on the batte ry . .......... .... ... .. ... . 263
Low vol tage symbo l .. ....... .... ... 34
Replacing the battery . ...... .. .... 262
Winter opera tion ... .. ...... ...... 261
Working on the battery .......... .. 263
B efore driving ... ..... .. ...... ...... 146
Blended gasoline ... ... .. .. .. .... .... 244
Body cavity sealing .. .. .. ...... .... .. 237
Boos ter seats .... .... .... .... .... ... 198
How do I properly instal l a booster seat in
my vehicle? . .......... ...... ... 198
Sa fety instructions . .... .... .... ... 198
Brake f luid
Changing the brake fluid .......... 261
Checking the brake fluid leve l .. .... 260
Reservoir . ... .... .... ....... .... . 260
What is the correct brake fluid level? 260
What shou ld I do if the brake fluid warning
light comes on? . ..... ... .... .... 260
Brake system .. ...... .... .... .... ... 260
An ti- lo ck brake system (ABS) ... .... . 20
Brake ass istant . .... .. .... .... ... . 217
Brake booster .... .... .... .... .... 216
Brake flu id .... ... .... .... .... .... 260
Brake f luid specifications for refi ll and
rep lacement . ... ..... ... .... .... 261
Brake pads ...... .... .... .... .... 220
Genera l informa tion ....... .. .... . 215 How does the moisture or road salt affect
the brakes? ....... ... .... .... ... 215
Ma lfunction ... .. .... .... .... .. .. . 30
Warning/indicator lights .. .. .... .... 23
Worn brake pads symbol . ..... .. .. . 33
B reak -in period ...... .... .... .... ... 219
B rake pads ... .... .... .. . .... .... 220
Tires ..... .... .... .... ... .... .. .. 219
Bu lbs ... ... .... ... ... ... .... ...... . 302
C
California Proposition 65 Warning . .... 251
Battery specific ..... ...... .... .... 264
Capacities Eng ine oil .... .... .... ... .... .... 31 4
Fuel tank ..... ...... .. ...... .... . 314
Windshield washer fluid ... .... .... 314
Car care ... .. .... ... .... .... .... .. .. 230
Interior ... .... .... .... ... .... .... 238
Plastic and v inyl .... ... .... .... ... 234
Weatherstr ips . .... .... .... ...... . 236
Care of exterior ..... .... .... .... .. .. 230
Cargo area
See Loading the luggage compartment .
153
Catalytic converter .. ...... ...... .... 220
Centigrade Switching between Centig rade and
Fahrenheit ...... .... .. .. ... .. .. 11 3
Certification . ............ ...... .... . 320
Changing a flat tire ....... ... .... .. .. 293
Chan ging a wheel .... .... ... .... .... 293
Vehicle operation Vehicle care Do-it-yourself service Technical data

IIPJI Alphabetical index _ __,__ ___ ____;_...::.:...::... ___________________________ _
Hood ...... ... ...... .. ... .. .. ... 249
Starting .. .... .... ....... ... 119,120
Starting with jumper cables ....... 304
Stopping . . . . . . . . . . . . . . . . . . . . . . .
120
Engine compartment
Safety instructions . . . . . . . . . . . . . . .
250
Working in the engine compartment 250
Engine coolant .................. ... 258
Checking the engine coo lant level .. 258
Malfunction warning symbol ... ..... 31
Engine coolant level
Checking ... .. .... .... ..........
258
E . I
ngine coo ant system ... .... ....... 257
Adding coolant .................. 259
Radiator fan . . . . . . . . . . . . . . . . . . . . . 260
Engine coolant temperature
Temperature gauge ....... .... ....
13
Engine data ...... ............... ... 314
Engine hood Closing ... .... ... .... .... ...... .
250
How to release the hood . . . . . . . . . . 249
Opening .. .... .... ....... .... ... 249
Engine oil ... ... .... .... .... ... .... 252
Adding ... .. ...... ... .... ...... . 255
Additives . . . . . . . . . . . . . . . . . . . . . . . 255
Changing . .............. ........ 256
Checking the engine oil level ...... . 254
Indications and conditions requiring extra
checking .... .... ....... .... ...
254
Indicator light . . . . . . . . . . . . . . . . . . . . 33
Oil capacity . . . . . . . . . . . . . . . . . . . . .
314
Oil consumption ................. 254
Oil grades . . . . . . . . . . . . . . . . . . . . . . . 252
Recommended oil check intervals .. 254
Sensor defective . . . . . . . . . . . . . . . . . . 33
Specification and viscosity ...... ..
252
Engine oil pressure
Malfunction .. ....... ..... ... .... . 32
Environment Break -in period .... .... .... .... ..
219
Catalytic converter .... .... .... ... 220
Disposing of your vehic le battery ...
262
Driving at high speeds ...... .... .. 221
Driving to minimize pollution and noise .
221
Fuel ......... .... ... .. .... .... .. 246
Fuel economy ....... ...... ...... 221
Leaks under your vehicle . ...... ... 250
Letting the vehicle stand and warm up
222
Proper disposa l of drained brake fluid
261
Proper disposal of drained engine
coo lant ..................... ...
259
Proper disposa l of drained engine oil
255,256
Recycling used eng ine oil ......... 255
Unleaded fuel ... .... ..... .... ... 244
What should I do with an old battery?
262
EPC
See Electronic power control .. ... .. . 22
ESP Electronic stabi lization program ....
212
See also Electronic stabilization program
(ESP) . ... .... .... ........ ......
212
Event Data Recorder (EDR) .. ....... .. 212
Expansion tank .. .. .. .. .. .... .... ... 258
F
Fahrenheit
Switching between Fahrenheit and Centigrade ... .... ..............
113
Fan
Climate controls ... ....... .... ...
114
Radiator ...... .... ........... ... 260
Setting the fan speed 114
Flat tire
Changing .. .... .... ............. 293
Floor mats
Fog lights
153
Front ....... ...... .... ........ ... 79
Folding master key with remote control . 47
Foot pedals . ... .. .... .... .... ...... 152
For the sake of the environment
Gaso line fumes and the environment
246
Letting your engine warm up ....... 120
Reducing engine noise by early
upshifting ......................
13
Refueling ......... ...... ........ 246
Saving fuel by early upshifting . ..... 13
Using the rear window defogger ....
116
Front airbags
Description ......................
172
How they work ..... .... ....... ... 177
Front ashtray . . . . . . . . . . . . . . . . . . . . . . . 104
Front seat adjustment
Safety guide lines .................. 92