2008 AUDI A4 AVANT coolant

_______________________________________________ C
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W For the sake of the environm ent
By regularly ma intain ing your vehicle, you help make sure that emis ­
sion standards are maintained, thus minimizing adve rse effects on
the e nv ironment. •
Important considerations for you and your
vehicle
T he increasing use of elec tronics, sophisticated fue l injection and
emission con trol systems, and t he gene rally increasing tec hn ical
complexity of today's automobiles, have steadily reduced the scope
of maintenance and repai rs which can be carried ou t by vehic le
owners.
Also , safety and environmental concerns p lace very strict
limits on the nature of repairs and adjustments to engine and trans ­
m iss ion parts whic h an owne r can perform.
Maintenance , adjustments and repairs usua lly require special tools ,
t es ting dev ices a nd othe r eq uipment availab le to s pec ial ly t rai ned
workshop personne l in order to assure proper performance , reli ­
abil ity and safe ty of the vehicle and its many sy stems .
Im proper maintena nce, adjustments and repairs can impa ir the
operation and reliability of your vehicle and even void your vehicle
wa rranty. T here fore, proof o f servic ing in acc orda nce with the main­
tenance schedule may be a condition for upholding a possib le
warranty cla im made with in t he war ran ty per iod .
Above all, operationa l safety can be adversely affected, creating
unnecessary risks for you and your passengers.
I f in doubt about any servicing, have it do ne by your auth orized Audi
dea ler or any other properly equipped and qua lified workshop . We
str ongly u rge y ou to give yo ur auth orized Au di d ealer the oppo rtu ­
n ity to perform all scheduled maintenance and necessary repairs .
Yo ur dealer has the faci lit ies, origi nal par ts an d trained specia lis ts
to keep your vehic le running proper ly.
Controls and equip­ ment Safety first
Vehicle operation
Performing limited maintenan ce yourself
The following pages des cribe a li mi ted numbe r of proced ures wh ic h
can be performed on your vehicle with ordinary tools, should the
need a rise a nd trained pers onnel be unavaila ble. Before perfo rm ing
any of these procedures, a lways t horoughly read all o f the app li­
cable text and carefu lly fo llow the instructions given. Always rigor ­
ously observe the
WARNINGS provided.
Before you check anything in the engine compartment , always read
and heed all
WARNINGS ~ & and~ & in "Wo rking i n th e engine
compartment" on
page 273.
& WARNING
• Serious personal injury may occur as a result of improperly
performed maintenance , adjustments or repairs .
• Always be e xtremely careful when working on the veh icle .
Always follow commonly accepted safety practice s and general
common sense . Never risk personal injury .
• Do not attempt any of the maintenance, checks or repairs
described on the following pages if you are not fully familiar with
the se or other procedures with respect to the vehicle , or are uncer ­
tain how to pro ceed .
• Do not do any work without the proper tools and equipment .
Have the necessary work done by your authorized Audi dealer or
another properly equipped and qualified work shop .
• 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 switch on
s uddenly -even when the engine is off and the ignition key has
been removed . The radiator fan swit ches on automat ically when
the coolant reaches a certain temperature and will continue to run
until the coolant temperature drops .
• Alway s remove the ignition key before anyone gets under the
vehi cle .
.,_
Vehicle care Do-it-yourself service Technical data

111'1_....::::A::.:l:.!: p :.:h..:.: a:::.:: b:.::e :.:t::i c::.::: a.:..l ..:.: in :..:.:: d:.:e :.:x::..... ___________________________________________ _
A
ABS (Anti- lock Brake System)
Warning/indicator lights ... .... .... 21
Accessories . .... .... .... .... .... ... 348
acoust ic park assist . . . . . . . . . . . . . . . . . 139
Adap tive light .. ... .... ... .. ...... ... 75
defective . . . . . . . . . . . . . . . . . . . . . . . . 35
Adding Engine coo lant
282
Engine oi l ... ... .. .... .... ... .... 278
Windshield washer fluid .... .... .. 291
Additiona l accessories .. ...... ...... . 348
Additives Eng ine oi l .. ....... ....... ....... 278
Adjustable steering whee l column .. ... 134
Adjusting Instrument cluster il lumina tion ... .. . 15
Steering wheel co lumn . ...... .... 134
Advanced A irbag System . .... ... .... 191
Ch ildren ... ........... .... ... ... 211
Components ...... .... ... .... ... 194
Fr ont airbags . . . . . . . . . . . . . . . . . . . . 192
How the c ompone nts wo rk togethe r 195
Monitoring . . . . . . . . . . . . . . . . . . . . . . 198
PASSE NGER AIR BAG O FF light ..... 199
Weight -sensing mat ....... ... .... 211
Air conditioner . . . . . . . . . . . . . . . . . . . . . 128
See also Climate controls . . . . . . . . . . 125
Air conditioning Switching on and off 128
A ir distribution
C limate controls . ...... ... .... ... 130 Air outlets
Adjusting the outlets for rapid defrosting/de fogging .. ...... .... 131
Cl imate con trols ...... .... .... ... 131
Air quality sensor . . . . . . . . . . . . . . . . . . . 129
Air recirculation .. ... .... .... .... ... 128
Clima te controls .. .... ..... .. .... 129
When should I use the air recircu lation?
129
Airbag Warning/indicator lights .... ... .... 20
Airbag system . . . . . . . . . . . . . . . . . . 187 , 205
Car e ...... .... .... .... .... .... .. 201
Child restraints .... .... .... .... .. 212
Componen ts (front airbags) .... ... . 194
Danger of fitting a chi ld safety seat on the
front passenger seat . . . . . . . . . . . . 189
Disposal .. ....... .... .... .... ... 201
Front airbags . .... ... .... .... .... 191
How do the front
ai rbags work? .... 196
How many airbags does my vehicle have? 194
I mportant things to know ....... .. 1 87
I ndicator light ... .. .... .... ... ... 198
Monitoring . . . . . . . . . . . . . . . . . . . . . . 198
Repairs ...... .... ... .... .... .... 201
Side airbags ... ...... .... ... .. ... 203
Side curtain airbags (SIDEGUARD) .. 207
When must the sys tem be inspec ted? ...
198
Alloy w heels . .... .... .... .... .... .. 260
All -wh ee l driv e 242
Winter tir es ..... .... .... ... .. ... 310 A
lternator
See Generator . . . . . . . . . . . . . . . . . . . . 22
Aluminum al loy wheels . ...... .... ... 260
Ambient light ing . ....... .... ... .. .... 82
Anti-free ze
See Engine coolant system ........ 280
Anti -glare inside day -ni ght mi rro r .. ... . 90
An ti- lock B rake System (ABS)
How the ABS system works . ....... 240
Warning/indicator l ights ........... . 21
Anti -Slip R egulation Syst em (ASR)
How the sys tem works .... .... .... 238
An ti- theft systems
Anti -theft ala rm system .. ...... .... 64
Electronic immobilizer .. ... .... ... . 5 4
Tilt sensors . .... .... ... .... .... ... 65
Armrest Adjusting ...... .... ... .... ..... . 102
Storage bi n
Ashtray 1
02
Front . .... .... .... .... ... .... ... 119
Rear ...... .... .... .... ... .... ... 119
ASR Anti- Slip Regulation System .... ... 238
Asterisk What does it mean when something is marked with an asterisk? .. ... .... .. 6
Attachment hooks ... .... .... .... ... 112
Aud i Service Repa ir Manuals and Lite rature
346

Alphabetical index -
-------------=----
Convertible child seats
How do I properly ins ta ll a conve rtible
child seat in my vehicle? ......... 216
Safety instructions . ...... ...... .. 216
Convertible locking retractor
Act ivating .. .. .... .... ........... 222
Deactivating ...... .... ........... 223
Using to secure a child safety seat 220,
222
Coolant system ... .. .... .... ........ 280
Coo ling System
Expansion tank .... ....... ... .... . 281
Cornering light .. .... .... ...... .... .. 75
Cruise control . ...... .... ........... 140
Changing a stored speed .... ... .. . 140
Setting and storing a vehic le speed . 140
Switching off . ........... .... .... 141
Switching off temporari ly .......... 141
Switching on .... .... .... .... .... 140
Warning/indicator lights .. ... .... ... 21
Cruising range .................. ..... 40
Cup holder ......................... 118
D
Data .............................. 343
Data recorder ... .... .... .... ..... .. . 236
Date display ......................... 14
D aytime running lights ................ 74
dEF indication .............. ......... 15
Defogging the windows .. .... .... .... 131
Defrosting the windows ...... .... .... 131
Defrosting /defogging windows .. .... .. 131
Controls and equip­
ment Safety first
Determining
correct load limit ..... .. . 302 Dynamic shift program ... .... ...... .. 153
Digita l clock .. ...... ..... .. .... .... .. 14
Setting the time ..... ...... .... .... 14
E
Digita l compass ...................... 93
Dimensions . ....... ... .. .... .... ... 341
Dipstick Location .... .... ... .. .... .... ... 277
Doors, power locks .. ...... ....... .... 58
Drive Information System Help .. ...... .... ... .. .... .... .... 43
Driver
See Seating position ........... ... 168
Driver information display ....... .... .. 24
Mi les (ki lometers) to empty .... ... .. 26
Open door or rear lid warning .. .... . 26
Outside
temperatu ire disp lay ....... . 25 ECON
When should I use ECON? ...... ... . 128
EDL Electronic differential lock .... .... . 237
Ele ctrically heated front seats ..... ... . 132
Electronic differential lock
Warning/indicator lights ...... .... .. 21
Electronic differential lock (EDU
How the system works ............ 237
Elect ronic immobilizer . ... .... .... .... 16
Electronic power contro l
EPC warning/indicator light ....... .. 23
Parking brake warning .. .... ... .. .. 29 Electronic stabilization program
(ESP)
Sound system display
...... .... .... 25 How
the system works ............ 236
Text messages .. ....... ...... .... . 29 Warning/indicator
lights ...... ...... 22
Driver Informa tion System Emergency
closing
Menu display .. ... .... .... .... ... . 41 Power sunroof ...
.... ........... .. 69
Practical example .................. 44 Emergency
flasher .. ... .... .... ...... 79
Setting .. .... ....... ...... .... .... 43 Warning/indicator
lights ...... ...... 22
Types of disp lay ..... ...... ... .... . 42 Emergency
locking ................... 61
Driver's seat memory ................ 100 Emergency
starting ... .... ... .... .... 330
Assigning the keys ....... ... .. .... 102
Emergency towing .................. 332
Recalling a seat position .. .... .... . 101
Emergency un locking (on ly manually)
Storing a seat position ............ 101
Rear lid . ... .. .... .... ...... .... .. 62
Driver's seat cushion extension ...... .. 100
Engine
Driving messages .... .... .... .... .... 29
4-cylinder (200 hp) ...... .. .... .... 274
Driving safely ....... ... .. .... .... ... 166 6-cylinder (255
hp) ................ 275
Driving time ... .. ...... .... ... .. .... . 40 Coolant
......................... 280
Dup licate key .... .... .... ...... ... .. . 52 Hood ......
...... .... ...... ..... 272
Vehicle operation Vehicle care Do-it-yourself service Technical data

___ A_l-=- p _h_ a_ b_e _t_ic _ a_l _in _ d_e _x ____________________________________________ _
Starting .. .. .. ...... .... .... 135, 136
Starting with jumper cables ... .... 330
Stopping . .... .... .... ... .... ... 137
Engine compartment ... .. .... .... ... 274
Safety instructions . . . . . . . . . . . . . . . 273
Working the engine compartment .. 273
Engine coolant system . ...... ...... . 280
Adding coolant .. ...... .......... 282
Checking coo lant leve l .. .. .... .... 281
Checking the engine coo lant leve l .. 281
Radiator fan . . . . . . . . . . . . . . . . . . . . . 283
Engine coolant temperature Gauge ...... ...... .... ........... 13
Engine cooling system Ma lfunction .. .... ..... .. .... .... . 31
Engine data ...... .... .... .......... 343
Engine hood Closing . ...... ..... .. .... ...... . 273
How to release the hood . . . . . . . . . . 272
Engine oil ...... .... .... .... ... .... 275
Adding ... .... ... .... .... ...... . 278
Additives . . . . . . . . . . . . . . . . . . . . . . . 278
Changing ... .. .... .... ...... .... 279
Checking the engine oi l level .. .... . 277
Indications and conditions requiring extra
checking ..... .. .... .... ... .... 277
Oil consumption .. .... .... ... .... 277
Oil grades . . . . . . . . . . . . . . . . . . . . . . . 275
Recommended o il check interva ls .. 277
Specification and viscosity . . . . . . . . 275
Engine oil level .. .... .... .... ... .... . 34
Engine oil pressure Malfunction ...... ..... .. .... .... . 32 Engine oil sensor defective
....... .... . 34
Environment Break -in period .. ...... .... .... .. 243
Catalytic converter .. ...... .... ... 244
Disposing of your vehicle battery ... 291
Driving at high speeds .. .... .... .. 245
Driving to minimize pollution and noise . 245
Fuel ... ...... .... ... .. .... .... .. 269
Fuel economy ....... ...... .... .. 245
Leaks under your vehicle ... .... ... 273
Letting the vehicle stand and warm up .. 246
Proper disposa l of drained brake fluid
284
Proper disposal of drained engine
coo lant ...... ............. ..... 282
Proper disposa l of drained engine oil
278 ,279
Recycling used eng ine oil .. .... ... 278
Un leaded fuel ..... .... ... .... ... 267
What should I do with an old battery?
291
EPC
See Electronic power control .. ... .. . 23
ESP
See Electronic stabi ll ization program
(ESP) . ... .... .... ........ ... 22, 236
Event Data Recorder (EDR) .. ....... .. 236
Expansion tank .. .... ... .... .... .... 281
F
Fahrenheit
Switching between Fahrenheit and Centigrade . ...... .... ...... .... 128
Fan Adjusting the fan speed .. ...... ... 129
Climate controls ................. 129
Radiator ...... .... .... ...... .... 283
Fastening eyes ... .... .... .... .... .. 108
Flat tire ............................. 50
Changing .. .... .... ... .... .... .. 318
Flat tire changing .. ...... .... .... .... 50
Floor mats .. ... ... .... .... .... .... . 172
Fog lights ........................... 76
Fo lding master key with remote control . 52
Foot pedals .. .. .. .... .... .... ...... 17 2
For the sake of the environment Gaso line fumes and the environment 269
Letting your engine warm up ....... 136
Reducing engine noise by early upshifting .... .... ... .... .... ... 13
Reducing engine noise by upshift ing
early . .... .... .... ... .... .... ... 13
Refueling .... .... .... ....... .... 269
Saving fuel by early upshifting . .... . 13
Saving fuel by upshifting early .. .... 13
Using the rear window defogger 131, 132
Front airbags
Description . .... .... ... .... .... .. 191
How they work .. .... ... .... .... .. 196
Front ashtray . . . . . . . . . . . . . . . . . . . . . . . 119
Front fog lights .... .... .... .... .... .. 76

Alph ab eti ca l ind ex -
-------------=-----
Front seats
Adjusting .... .... ....... .... .... 169
Adjusting the manual seats .... .... . 96
Child restraints in the front seat .... 189
Heated seats . . . . . . . . . . . . . . . . . . . . . 132
Front seats adjustment Importance for safe driving and riding 95
Frontal c ollisions and the laws of physics ..
177
Fuel Fuel gauge ...... .... .... ... .... .. 16
Fuel consumption Average ....... .. .... .... .... ..... 40
F uel filler flap
Un locking the fuel fi ller flap by hand 271
F uel gauge .... .... .... .... .... .... .. 16
Fuel supp ly
Addi tives ... .. .... .... ...... ... .. 267
Blended gasol ine ... .. .... ... .... . 267 Fuse arrangement
............. .... .. 327
G
Garage door opener ... .... .... .... .. 157
Gas discha rge lamps .. ...... .... ... . 328
Gauges Engine coolant temperature ......... 13
Fuel gauge .. ....... .... .... ...... 16
Speedometer ... .. .... .... .... ... . 15
Tachome te r .. ... .... .... .... .... . 13
Tr ip odometer .. ...... .... .... ... . 15
Gearsh ift lever .... .. ... .. .... .... ... 142
Genera l il lustration
Instruments and controls .. .... ..... 11
Generator Warning/ind ica tor lights ...... .... .. 22
G lossary of tire and loading term inology ...
29 4
Fuel fi ller neck ... .... .... ...... .. 268 G love compartment ... .. .... .... .... 122
Fuel gauge ...... .... .... ... .... .. 16 Light .... .... .... .... .... .... ... . 81
Fuel tank capacity ............. 16,268 Gross Veh ic le Weight Rating (GVWR) ... 341
Gaso line .. ....... .... .... ....... 267
Gaso line additives ................ 268
H
Instantaneous fuel consumption ..... 41
Octane rating .................... 267 Head restraints ..
.... .... .... ....... 171
Recommendation .... .... ..... .. . 267 Adjusting
....... ... .. .... .... ... 171
Re fuel ling ....................... 269 Rear seats
.......... ...... .... ... 106
Un locking the fuel fi ller flap by hand 271 Headl
ight
Fuel supp ly too low .. .... .... .... .... . 34 Defective .....
........ ............ 35
Fue l tank Headlight
range co ntr ol
Capacity ... .. .... .... ... .... .... 268 de
fective ..... ... .... .... .... .... . 34
Capacity (ga llons/l it res) .. ...... .... 1 6 Headlight washer reservoir ........... 291 Headlights
.. ... .... ... .. ...... .... .. 72
Adaptive light .. .... ............. .. 75
Front fog l ig hts .................... 76
Switching off ..................... 72
Switching on .......... ........ .... 72
Washer system . ....... ... .... .... . 87
Heated rear seats ...... .... .... .... ... .. 133
Heated outside mirrors ... .... .... ..... 91
Heated seats rear . ... .. .... .... ... .... ..... .. 1 33
Heated washer jets Wiper and washer system ........... 85
Heavy cl othing and safety belts .. ...... 1 80
High beam ....... ........ ....... . 72, 80
Warning/ind icator lights ........ .... 23
High vo ltage warning label ........... 340
Ho melink® U niversal Rad io- Frequency Re-
mote Contro l .. .. .... ...... .... . 157
Hood Opening ...... .... ... .... .... ... 272
Release lever ....... ... .... .... ... 272
Hor n ... .... .... .... .... ... .... .... . 1 1
How many airbags does my vehicle have? ..
19 4
How often shou ld I check my tire pressures?
300
How safety be lt tensioners work ....... 185
How to increase the loading surface .. . 104
Hydroplaning ..... ... .... .... ...... . 30 4
Controls and equip­
ment Safety first Vehicle operation
Vehicle care Do-it-yourself service Technical data

-Alphabetical index _ _e ____________________________________ _
Waxing .... .... ....... .... .... ... .. 257 Why safety belts? ....... .... .... 176, 177 y
Wear indica tor ..................... 303 Windows
Weatherstrips .... ... .... .... .... ... 259 Cleaning ........................ 258 Yellow symbols ... .... .... ...... ..... 33
Weights ........................... 341 Convenience close/open feature ..... 59
What happens if you wear your safety be lt too Defogging · · · · · · · · · · · · · · · ·
...... 131
loose? ........................ 182 Defrosting ...................... 131
What happens to unbelted occupants? . 178 Rapid defrosting/defogging ........ 131
What impairs driving safety? .. ...... . 167
What should I do after changing a wheel? .. 300
What should I do after replacing whee ls? ...
300
Wheel bolts Torque ......................... 311
Wheel change . . . . . . . . . . . . . . . . . . . . . . 318
Wheels .. .... .... .... ....... .... ... 293
Cast a lloy ... .. .... .... .......... 260
Checking tire pressure ............ 299
Cold tire inflation pressure ...... .. 297
Genera l notes .... .... .... ...... . 293
G lossary of tire and loading terminology
294
New tires and whee ls . . . . . . . . . . . . . 305
Stee l whee ls .......... .......... 259
Tires and vehicle load limits . . . . . . . 301
When must a safety belt be replaced? .. 180
When must the airbag system be inspected? 198
When should I adjust the tire pressures?
300
When should I check the tire pressures? 300 Windshield washer fluid
Low level .... ....... ...... .... ... 34
Windshield wipers Installing new wiper b lades ......... 88
Washer reservoir . . . . . . . . . . . . . . . . . 291
Winter driving Windows . . . . . . . . . . . . . . . . . . . . . . . 258
Winter operation
Battery .. .... ....... ...... .... .. 285
Coolant system .................. 280
Ti res ....... .. .... .... .... ... ... 242
Winter tires .............. .......... 310
All -whee l drive ... .... ....... ..... 310
Wiper and washer system .. .... .... ... 85
Intermittent wiping ...... ....... ... 85
One-tap wiping ...... ...... .... ... 85
Rear window wiper .......... .. .... 86
Wiper blades Installing new wiper blades ....... .. 88
Replacing rear window wiper blades . 89
Worn brake pads .. ........ ... .... .... 34
X
Where can I find the tire pressures for my Xenon headlights ..... .... .... .... ... 79
car? ...... ... .... .... .... .... . 299 Xenon-L ights ... .. ...... .... ... .. ... 328