2008 AUDI A4 AVANT Power steer

____________________________________________ ln_t_ e_ l_ li _,..g "- e_ n
_ t_t_e _c_ h_ n_o _l_o _....g ,_,y'-----'IJIII
& WARNING
Although the ABS is very effective, always remember that braking
capability is limited by tire traction. Always adjust your driving
speed according to the road and traffic conditions. Do not let the
extra safety afforded by the ABS tempt you into taking extra risks.
The ABS cannot overcome the laws of physics.
[ i] Tips
• If ABS is not functioning properly, a warning light will come on.
See~ page 21.
• If a fault occurs in the ABS , the EDL is also not functioning. This
is indicated by the ABS warning light. •
Brake assistant
The brake assistant is designed to achieve the optimum
braking effect.
The brake assistant helps to increase the effective braking power
and thus to achieve a shorter stopping distance . If the driver
presses the brake pedal very quickly, the brake assistant automati ­
cally boosts the braking force to the maximum level, up to the point
where the anti-lock brake function (ABS) intervenes to stop the
wheels from locking. You should then keep the brake pedal pressed
until the vehicle has braked to the required speed. The brake assis ­
tant switches itself off as soon as you release the brake pedal.
The brake assistant will not be operative if there is a malfunction in
the ABS.
Controls and equip­
ment Safety first
Vehicle operation
& WARNING
Please remember that the accident risk always increases if you
drive too fast, especially in corners or on a slippery road, or if you
follow the vehicle ahead of you too closely. An increased accident
risk cannot be compensated even by the brake assistant, so
always maintain a safe speed. •
Servotronic® -advanced power
steering system
The power steering systems uses the power of the
running engine to allow precise steering with little effort. Your Audi is equipped with the electronically controlled
Servotronic® advanced power steering system. It adjusts
the degree of steering assistance to the roadspeed.
The advanced Servotronic ® power steering system senses the road
speed and electronically adjusts power assistance to provide
comfortable and safe steering response exactly matched to the
vehicle speed .
Power steering will not work if the engine is off. As a result, the
steering wheel will be hard to turn.
The power steering fluid level is checked during the scheduled
maintenance services.
0 Note
If there is an electronic malfunction, servotronic will still function
like a conventional power steering system, providing a constant
steering support force that is no longer proportionate to the vehicle
speed . This is most noticeable when turning the steering wheel at
low speeds (for example when parking), -more effort will be
required than usual.
.,.
Vehicle care Do-it-yourself service Technical data

llffll.___l_n _t _e _ll _ig =- e_n _ t_ te_ c_h _n_ o_ lo-'g'"'-=- y ___________________________________________ _
• Be aware of the different than usua l steering response and
adjus t you r steer ing forc e acc ordin gly.
• Have the prob lem checked and set right by an Audi dea ler as
s o on as poss ible.
[ i] Tips
• When t he engi ne is running, never ho ld t he steer ing w heel
turned all the way to the right or to the left for longer than 15
seco nds. Th e powe r steering p ump w ill ove rhea t th e hydra ulic flu id
if you keep holding the steer ing whee l turned a ll the way . T his is
l ike ly to d amage t he powe r stee ring sys tem.
• I f the power steering system should fail entirely, or if the engine
i s not r unning ( for e xa mpl e, while being t owed), you will still be able
to steer the vehicle . However,
considerably more effort wil l be
r e q uired to do s o.
• I f the power steering system should have a lea k, or is not func ­
t ioning pr operly, co nt ac t yo ur auth orize d Audi deale r immedia tely.
• T he power steering system requires a specia lly formu lated
h ydraulic fluid. T he power s teeri ng reserv oir is th e one loca ted m ost
forward on the left side of the engine
compartment=> page 265,
"Engine co mpartme nt". The c orrect f luid level in the reservoir is
important for proper functioning of the power steering .•
Ap plies to veh icl es : w ith A ll Whee l Dr ive
Driving with your quattro®
Wit h All Whe el Dr ive, all fo ur w heel s are d riven .
Gen eral information
With All W heel Dr ive, powe r is d istributed to all four w hee ls . T hi s
happens automatica lly depending on your dr iving style and the
r oa d c ondit ions at th e time. See
also => page 237, "Elec tronic diff er­
entia l lock (E DU" .
Winter tires
When driv ing in th e win te r, yo ur ve hicle with All Wheel Drive ha s an
advantage, even with regular t ires. In winter road conditions it may
b e advi sable to m ount win ter tires ( or all -s easo n tires) for impr oved
driveabi lit y and braking : th ese tires mus t be moun ted on
all four
wheels .
See also => page 31 0, "Winter tires".
Snow chains
Whe re snow cha ins a re ma ndato ry on certai n roa ds, th is norma lly
a lso app lies to veh ic les with a ll-wheel
dr ive=> page 311, "Snow
chain s".
Replacing wheels /tires
Ve hicles wit h All Wheel D rive mu st always have t ires of the sa me
size . A lso avo id tires with different tread depths . For details see
page
=> page 305 .
Off-Road dri ving?
Yo ur Au di d oes not have e nough gr ound clea ra nce to be use d as an
off -road vehic le . It is therefore best to avoid rough tracks and
u neven te rr ain as much as poss ible . Also refe r
to => page 2 45.
& WARNING
Alway s adjust your driving to road and traffic condition s. Do not
let the extra safety afforded by the all -wheel drive tempt you into
taking extra risks .
• Although the quattro ®all-wheel drive is very effective, always
remember that braking capacity is limited by tire traction. You
should therefore not drive at e xcessive speeds on icy or slippery
road surfaces.
• On wet road surfaces , be careful not to drive too fast be cause
the front wheels could begin to slide on top of the water (hydro ­
planing ). If this should occur , you will have no warning from a
sudden increase in engine speed as with a front -wheel drive
vehicle . Always drive at speeds which are adjusted to the road
conditions - risk of crash! •

Checking and filling -
------------ ----=---a::;;._...a
©
©
(i)
Coolant expansion tank ( ... L) ...... ... .. ..... .. ... .
Windshield/headlight washer container
( 0 ) ...... . .
Power steering reservoir (green cap)
& WARNING
Before you check anything in the engine compartment, always
read and heed all WARNINGS
=> & in "Working in the engine
compartment" on
page 273. •
Applies to vehicles: with 6 -cy lin d er engine
3.2 liter , 6-cylinder engine (255 hp)
281
291
241
These are the most important items that you can check.
Fig . 206 Engine compartment: 3 .2 liter , 6-cylinder
CD
0
©
Battery .. ............... ... .. ...... .... ...... .
Brake fluid reservoir (
... ) . .. ... ... .... .... ...... .
Coo lant expansion tank
(J _)
285
284
281
©
©
©
(i)
Engine oil filler cap ( Engine oil dipstick (orange) .. .... ..... ... .... ... .
Windshield/headlight washer container
( O ) ... .... .
Power steering reservoir (green cap)
& WARNING
Before you check anything in the engine compartment , always
read and heed all WARNINGS
=> & in "Working in the engine
compartment" on
page 273. •
Engine oil
Engine oil specifications
278
277
291
241
The engine oil used in your Audi needs the right kind of
oil.
The engine in your Audi is a sophisticated powerplant 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 smoothly and re liably . Choosing the right oil and
changing oil within the time and mileage intervals printed in your
vehicle's Maintenance
& Warranty booklet matters a lot more today
than it did years ago. Audi has developed a special quality standard
f or engine oil that wil l help assure that your vehicle's engine wi ll get
the lubrication 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 synthetic or petroleum -based engine oil, the oil
that you use must conform to Audi's oi l quality standard VW 502 00
to help keep your vehicle 's engine running smoothly and help
.,_
Ve hic le care Technical data

___ T_ ir_e _ s_ a_ n
_ d_ w_ h_ e_ e_ls _________________________________________________ _
&, WARNING (continued)
crashes and serious personal injuries . Have worn or damaged tires
replaced immediately.
• 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
low speed.
Glossary of tire and loading terminology
Accessory weight
means the combined weight (in excess of those standard items
which may be replaced) of automatic transmission, power steering,
power brakes, power windows, power seats, radio, and heater, to
the extent that these items are available as factory-installed equip­
ment (whether installed or not).
Aspect ratio means the ratio of the height to the width of the tire in percent.
Numb ers of 55 or lower indicate a low sidewall for improved
steering response and better overall handling on dry pavement.
Bead means the part of the tire that is made of steel wires, wrapped or
reinforced by ply cords and that is shaped to fit the rim.
Bead separation
means a breakdown of the bond between components in the bead.
Cord
means the strands forming the plies in the tire.
&, WARNING (continued)
• 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.
• If you notice unusual vibration or if the vehicle pulls to one side
when driving, always stop as soon as it is safe to do so and check
the wheels and tires for damage.
•
Cold tire inflation pressure
means the tire pressure recommended by the vehicle manufacturer
for a tire of a designated size that has not been driven for more than
a couple of miles (kilometers) at low speeds in the three hour period
before the tire pressure is measured or adjusted .
Curb weight
means the weight of a motor vehicle with standard equipment
including the maximum capacity of fuel, oil, and coolant, air condi­
tioning and additional weight of optional equipment.
Extra load tire
means a tire designed to operate at higher loads and at higher infla ­
tion pressures then the corresponding standard tire. Extra load tires
my be identified as "XL", "xi", "EXTRA LOAD", or
"RF" on the side ­
wall.
Gross Axle Weight Rating ("GAWR")
means the load-carrying capacity of a single axle system, measured
at the tire-ground interfaces .
Gross Vehicle Weight Rating ("GVWR")
means the maximum total loaded weight of the vehicle.

Fuses and bulbs -
----------------
0 Note No. Equipment Amps
• On no account should fuses be repaired (e.g. patched up with tin 13 Steering column module 10
foil or wire) as this may cause serious damage elsewhere in the elec -14 Brake lights 10
trical circuit or cause fire.
15 Instrument cluster, Navigation system 10
• If a fuse blows repeatedly, do not keep replacing it. Instead, have
the cause for the repeated short circuit or overload tracked and Garage door opener
5
fixed.
•
Level, tire pressure control, park assist,
17 light/rain sensor 10
Fuse list Automatic headlight range control, left 5
Fuses which can be replaced. 19 Fog lights, rear fog light 15
20
Not used
No. Equipment Amps
21 Not used
1 Air conditioner 10 Front doors 15
2
Footwell illumination 5 23 Rear doors 15
3 Heated washer jets 5 Central convenience electrical system 20
4 Radiator fan 5 25 Heater blower 30
5
Telephone, oil level sensor, multifunction 10 26 Rear window defogger 30
switch, rear heated Seat, shift gate
27 Socket for trailer towing (controller) 30
6
Air conditioner (air quality sensor), air pressure 5 28 Fuel pump 20 sensor
Electronic Stabilization Program (ESP), brake
29 Not used
7 light switch, clutch pedal switch, steering angle 10 Power sunroof 20
sensor Automatic transmission, mirror dimming, diag-
31 15 8 Telephone 5 nosis socket
9 Brake booster (vacuum pump) 15 Towing assembly 15
10
Automatic headlight beam adjustment, auto -5 33 Cigarette
lighter 20
matic headlight range control, right
Electrical socket 20
11
Airbag 5 35 Luggage compartment socket 20
12
Diagnosis socket 10 Windshield wiper system 30
Do -it -yourself service

______________________________________________ A_ l_,_ p _h_ a_ b_e _t_i c_ a_l _in _ d_e _ x _ ___.fflll
Partition screen .. ... .... ......... 111
Protective liner ..... .. .... ...... .. 113
Removing luggage compartment cov-
er /partition net ... .. .... .... .... 1 11
Retractable cover ... .. .... ... .... . 110
Side Compartment ... .... ... .... . 114
Ski sack . ...... .. .... .... ...... .. 114
Tie -down strap ...... .... ......... 109
See also Loading the luggage
compartment ... .... .... ....... . 173
Lumbar support .. ...... .... ....... ... 99
M
Maintenance ..... .. ...... .... .... .. 346
Malfunct ion Indicator Lamp (M IU . ... 20, 27
Manual transmission . ...... .... .... . 142
Gearshift lever .. ...... ... .... .... 142
Master key ........ .... .... .......... 53
Battery replacement . ...... .... .... 54
Menu button ..... .. .... .... ...... ... 42
Menu input switch . ...... .... .... .... 42
Mi le age
Average .... ... .. .... .... ...... ... 40
Ins tan taneous .... .... ...... .... .. 41
M iles to empty .. .. .. .... .... .... .... . 26
Mirrors Activating the digita l compass ..... . 93
Adjusting the a nti -g lare ...... .... .. 90
Automat ic d imm ing fo r the outside
m irrors . .... ...... .... .......... 92
Automat ically dimming inside mirror . 90
Inside rearview mirror . ...... .... ... 90
Inter ior mirror .... .... ...... .... .. 90
Controls and equip­
ment Safety first
Manual glare dimming
.......... ... 90
Outside mirrors .. .......... .... ... 91
Recalling position of outside mir rors 101
Storing posit ion of outs ide m irrors .. 101
Monitoring the Advanced Airbag System 198
multitronic™ Automatic Shift Lock (ASU 152
D riving the mu ltitronic™ .. ... .... .. 150
Dynamic shift prog ram ...... .. ... . 153
Fa il- sa fe mode .... ... .... .... .... 156
Kick-down .... .... .... .... .... ... 153
Manual shi ft program ... .. .... .... 154
Selector lever .... .... .... .... .... 1 51
Steering w heel wit h tiptronic® . .... 155
tiptron ic
154
N
Nat ural leather . ...... .... ....... .... 262
New tires and whee ls . ....... ... .. ... 305
NHTSA Contacting ..... .... .... ... .. .... 175
Number of sea ts ... .. .... .... .... ... 1 76
0
Occupant seat ing pos itio ns .. .. ... .... 1 68
Octane rating .... ...... .... .... .... . 267
Odom eter .... .... ... .... .... .... ... . 15
O il
See Eng ine oi l .... .... .... .... .... 275
O lder children and safety belts ..... .. . 219 On
-Board Diagnostic System .. ... .... .. 28
Electronic speed lim iter ... .... ..... 28
Malfunc tion Indicator Lamp (M IU .. .. 27
On -Board Diagnostic System (OBD) .... . 27
Data Link Connec tor (DLC) .. .... .... 27
Open door or rear lid warning ... .. .. . .. 26
Opening Power sunroof ....... ........... .. 68
Operate your vehicle economical ly and mini -
mize pol lution .... ... .... .... ... 245
Optional equipm ent
Mark ed with an asterisk ...... ....... 6
Out lets ...... .... .... ... .... .... ... 12 1
Outside air pollution How to prevent from enter ing the veh ic le
128
Ou ts ide mirrors ....... ... .... .... .... 91
Outside temperature display .. .... ..... 25
Owner's manual How the Owne r's Man ua l is o rganized . 6
Owner's literature storage .... .... .... 123
p
Paint
Touch -up ... .. .... .... ... .... .... 258
Pain t no ...... .. .... ...... .... .... . 340
Park assis t ... .... .... ... .... .... ... 139
Parking .. .. .. ...... .... ........... . 138
Automatic t ransmission (6 -speed) .. . 143
multitronic ™ ... .... ... .... .... ... 1 50
P arking brake ...... .... .... .... ... .. 137
Setting and re leasing . ...... .. .... 137
Vehicle operation Vehicle care Do-it-yourself service Technical data

___ A_,_ lp_h_ a_b_ e_ t
_ i_ c _ a_ l_ in_ d_ e_x ______________________________________________ _
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

___ A_l-=- p _h_ a_ b_e _t_ic _ a_l _in _ d_e _x ____________________________________________ _
Servotronic ........ .... .... ........ 241
Set menu ........................... 43
Setting Date display . . . . . . . . . . . . . . . . . . . . . . 14
Digital clock . .... .... .... .... .... . 14
Shift buttons . . . . . . . . . . . . . . . . . . . 148, 155
Side airbags Description . ...... .... ...... .... 203
How they work . . . . . . . . . . . . . . . . . . . 205
Side curtain a irbags
Description . ...... .... .... ... ... 207
How they work . . . . . . . . . . . . . . . . . . . 208
Safety instructions . . . . . . . . . . . . . . . 208
Side curtain airbags (SIDEGUARD) ... .. 207
Ski sack ....... .. .... .... ...... .... 114
Snow cha ins . . . . . . . . . . . . . . . . . . . . . . . 311
Sockets . . . . . . . . . . . . . . . . . . . . . . . 120, 121
Sound system Rep lacing ....................... 349
Sound system disp lay
Driver information display .......... 25 Steering
........ .... ... .. ...... .... 134 Tether strap ........ .... .... ... .. ... 230
Lo cking the steering .... .... .... .. 135 Securing the upper tether strap . ... 231
Steering wheel co lumn The first 1,000 miles (1,500 km) and
Adjusting ........ ... .. .... .... .. 134 afterwards ..................... 243
Steps for determining correct load limit 302 Tie -down strap .... .... ... .... .... .. 109
Stopping the engine .. ... .... ... .. ... 137 Tie-downs ..................... 108, 175
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . 122 Ti lt sensors .. ... .... .... ....... .... . 65
Compartments in the door trims .... 124 Tips for the environment
Cup holder in the center console . .. 118 Saving fuel ... .... .... ........... 117
Cup holder rear center armrest ..... 118 tiptronic® .... ....... .... ........ .. 143
Glove compartment .............. 122
Automatic Sh ift Lock (ASU ....... .. 145
Luggage compartment ............ 114
Driving . . . . . . . . . . . . . . . . . . . . . . . . . 143
Owner's literature . ............... 123
Dynamic shift program ........ .... 146
Ski sack . . . . . . . . . . . . . . . . . . . . . . . . . 114
Fail-safe mode ................... 149
Small objects .. ............. ..... 123
Kick-down ... .. .... .... .... .... .. 146
Sun blind .. ...... ...... .... ... .. .... 84 Manual shift program ...... .... ... 147
Sun visors ...... .... ... .. .... .... ... 84 Selector
lever ....... ... .... .... .. 144
Switches Tire pressure
...... ................. 299
E mergency flasher .............. .. 79 Tire pressure monitoring system ...... . 46
Power sunroof .................... 67 Initialize wheels .... .... ...... ..... 50
Rear window defogger . . . . . . . . . . . . 131 Learning process ... .... .... .... ... 48
Spare wheel . . . . . . . . . . . . . . . . . . . . . . . 317
T
Speed rating letter code ...... .... ... 306 Loss of air pressure .
.... ... .... . 20, 47
Ma lfunctions ........ .... ... .. .... 51
Speed warning 1 ..................... 34 Tachomete r ......................... 13
Speed warning 2 ... .... ... .... .... ... 34
Speed warn ing system .. ...... ...... . 35
Speedometer . . . . . . . . . . . . . . . . . . . . . . . 15
Starting the engine . ...... ...... 135, 136
What should I do if the engine does not
start? . . . . . . . . . . . . . . . . . . . . . . . . . 136
Steel wheels .. ............... ... ... 259 Tailgate
S
ee Rear lid ....... .... .... ....... 61
Technical modifications ... ...... ... .. 349
Temperature Climate controls ................. 127
Setting for the driver 's and front passen­
ger's side . . . . . . . . . . . . . . . . . . . . . . 127 Sensors .
. . . . . . . . . . . . . . . . . . . . . . . . 307
Storing tire pressures .............. 48
Tires and wheels .. ....... .. .... .. 307
Valves ...... ...... .... ...... .... 307
Tire service life .... .... ............. 303
Tir es .... ... .. .... .... ......... .... 293
Replacing . .... .... .... .... .... .. 307
Service life .... .... ...... .... .... 303
speed rating letter code .... .... ... 306
Ti re manufacturing date ...... .... . 306