radiator AUDI A4 AVANT 2008 User Guide

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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

___ 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

___ A_,_ lp_h_ a_b_ e_ t
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Parking brake warning ..... .. .... .... . 29
Parking l ight
Defective . . . . . . . . . . . . . . . . . . . . . . . . 35
Park ing on a dec line (downhil l) ....... 138
Parking on an incline (uphill) ..... .... 138
Parktronic
See acoustic park assist . . . . . . . . . . . 139
Parts replacement . . . . . . . . . . . . . . . . . . 348
PASSENGER AIR BAG OFF light ........ 199
Passive safety system . . . . . . . . . . . . . . . 166
Pedals ............................ 172
Physical principles of a fronta l collision 177
Polishing . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Power locking switch . . . . . . . . . . . . . . . . . 59
Rear ............................ 60
Power locking system . . . . . . . . . . . . . . . . 55
Convenience close/open feature ..... 59
Locking and unlocking the vehicle from
inside ........... ....... .... .... 59
Opening and c losing the windows ... 59
Operating locks from with key .. .... 58
Rear lid . .... ... .. .... .... .... .... 61
Remote control . . . . . . . . . . . . . . . . 53, 56
Unlocking and locking vehicle ....... 56
Power locks
Power sunroof ..... .... .... .... ... 69
Pow er outlets . . . . . . . . . . . . . . . . . . . . . . 121
Power roof ........ .... ... .. .... ..... 67
Power seats Adjusting the seatback ............. 99
Adjustment ........... .... .... ... 97
Pow er steering . . . . . . . . . . . . . . . . . 135 , 241 Power
sunroof
Emergency closing ................ 69
Power window switche ·s . ...... .... ... 65
In the driver's door ... .... ... .. .... 66
In the front passenger's door ....... 67
Reactivating the system ............ 67
Pregnant women Specia l considera tions when wearing a
safety belt . . . . . . . . . . . . . . . . . . . . . 183
Programming the Homelink® Universa l Re -
mote Contro l . . . . . . . . . . . . . . . . . . . 157
Prop er occupant seating positions .... 168
Proper safety be lt position . . . . . . . . . . . 182
P roper seating position
Front passenger . . . . . . . . . . . . . . . . . 169
Occupants . . . . . . . . . . . . . . . . . . . . . . 168
Rear passengers . . . . . . . . . . . . . . . . . 170
Protectiv e liner 113
a
Quartzclock ...... .... ........ ....... 14
quattro®
See All -whee l drive ............... 242
Question
R
What happens to unbelted occupants? ..
178
Why safety belts? . . . . . . . . . . . . . . . . 176
Radiator fan ...... ............. ..... 283
Radio Replacing ....................... 349 Rain sensor defective
... .. .... .... .... 34
Reading lights
Front ....... ...... .... ...... ..... 81
Rear .......................... 81, 82
Reararmrest . .... .... .... ....... ... 103
Rear ashtray ....................... 119
Rear fog lights .. ...... .... .... .... ... 76
Rear lid
Emergency un locking (on ly manually . 62
Locking/unlocking ............. .... 61
Rear light
Defective ........ .... .... .... .... . 35
Rear power locking switch ... .. .... .... 60
Rear seat bench .. .... .... ..... .. ... 104
Rear view mirror Inside rear view mirror ............. 90
Rear window defogger .... .... .... ... 131
Rearview mirror
See Mirrors ....................... 90
Red symbols .. ........... .... .... ... 30
Refuel ling .......................... 269
Release lever for hood .... ........ ... 272
Remote control . . . . . . . . . . . . . . . . . . . 53, 56
Assigning a seat position .. .... .... 102
Resetting remote control ........... 57
Unlocking and locking ............. 56
Remote master key
Battery replacement ....... ....... . 53
Check light ................ ...... . 53
Remote rear lid release .... ...... ..... 63
Removing luggage compartment cover/parti -
tion net ...... .... .... .... .... . 111