engine AUDI A4 AVANT 2008 Owner's Manual

Opening and clo sing
Master key battery replacement
Each master key contains a battery housed under the
cover.
F ig. 48 Mas ter key:
o p enin g the cover
We recommend having the battery changed by an autho­
rized dealership. However, if you wish to replace the dead
battery yourself, proceed as follows:
- Pry apart the
base~ fig. 48 @ and the cover ® car efully
with a coin .
- Remove the cover (arrow).
- Remove the dead battery from the cover .
- Install the new battery. Please make certain t hat the"+"
sign on the battery faces down . Correct polarity is shown
on the cover.
- Place the cover w ith the new battery on the key base and
press both parts together.
ffi For the sake of the environment
Dispose of dead batteries properly so as not to pollute the environ­
ment .
[ i ] Tip s
The replacement battery must be the same specification as the
original. •
Electronic immobilizer
The immobilizer prevents y our vehicle from being started
b y u nau thor ized pers ons.
Inside the key head there is a computer ch ip. Th is ch ip automatically
deactivates the e lectronic immobilizer when you insert the key in
the ignit ion lock. When you remove the key from t he ignition lock,
the electron ic immobili zer is automatical ly activated once again .
[ i ] Tips
• Your engine can only be started using the factory -equipped key
=> page 16.
• You may not be able to start your vehicle if an ignition key of a
different vehicle make is also located on your set of keys. •

Opening and clo sing
& W ARNI NG (c onti nued )
• Do not le ave ch ildr en in side th e vehicle uns upervi sed. In an
em erge ncy it would be i mpos sible to open t he doors from the
out side w it h out the key .
[ i] Tips
• In the event of a crash with airbag deployment all locked doors
wi ll be automatically unlocked to give access to the vehicle occu­
pants from the outside .
• If the power locking system should fail, you can still open the
fue l tank flap in an emergency =>
page 271.
• You are well advised not to keep va luables inside an unattended
vehicle, visible or not. Even a properly locked vehicle cannot provide
the security of a safe!
•
Keyless entry remote control
General description
The remote controls allows you to :
• lock or unlock the vehicle
• selectively unlock the rear lid.
The turn signals will flash briefly whenever you lock or unlock the
veh ic le . Also, the interior light will come on or go off whenever you
open or close the driver's door.
T he transmitter and battery are located in the head of the remote
control. The receiver is located inside the vehicle. The maximum
effective range depends on several things. Remember, if the battery
is weak, the effective range decreases .
The remote-contro l key contains a fold-out key that you can use to
manually lock or unlock the vehicle and to start the engine . I
f you need to replace the remote control, or if you need to have it
repaired, you must see your authorized Audi dealer. Only then can
you use the key again .•
Unlocking and locking the vehicle with the
remote control
How the remote cont rol works.
To unlock the vehicle 0
- Press button @.
Fig. 4 9 Rem ote
co ntrol: fu nct ion
b utto ns
- Press bu tton @ two times within two seconds to unlock
all doors and th e rear lid .
To lock the v ehi cle 6
- Press button ® => & in "General description" on
page
55.
- Watch that a ll turn signal lights flash once .

To unlock rear lid only ~
- Press button © for approximately one second.
PANIC Button Push the red
butto n@) to activate the panic function. The
horn sounds and t he turn signals flash.
- P ush the
button @) again to deact ivate the panic fu nc­
t io n.
& WARNING
R ead and fo llow all WARNIN GS=> & in "G eneral de scr iption " on
page 5 5.
[ i] Tip s
• In orde r to make sure the locking function is working, you should
always keep your eye on the vehic le to make sure it is proper ly
locked .
• Do not use the remote control if you are inside the car, otherwise
you may uninten tiona lly lo ck the vehicle, and then you would set off
the anti -t heft alarm when you try to s tart the engine or open a door.
In case this happens anyhow, push the unlock button
ft .
• Use the panic funct ion only if you are in an emergency
situation .•
Controls and equip ­
ment
Op ening and closing
Resetting the remote control
The remote control must be reset if the vehicle does not
unlock .
0
Fig . 50 Ig ni tio n l ock
p ositi ons
- If the vehicle is locked, ope n the driver's door w ith the
mechanical key in your remote control.
- Press the u nlock button
0 on the remote co ntrol.
- Inse rt the key into the ignition lock
G) => fig. 50 and turn
it to
position @ to turn the ignition on .
- T urn the key back to posit ion
G) to turn t he ignition off
aga in.
- P ull the key out of the igniti on lock.
- Press eithe r the lock -
6 or the unlock 0 button to
co mplete t he reset seque nce .
0 Note
• Do not turn the key to position ® for resetting as this will start
the engine and may pu t the car in motion .•
irechnical data

Openin g and closing
Anti-theft alarm system
Description
The anti-theft alarm triggers an alarm if anyone attempts
to break int o the vehicle.
The anti-theft alarm system triggers an audible alarm and turns on
t he emergency flasher if an unauthorized interference with the
vehic le is sensed by the system .
How is the anti-theft al arm sy stem swit ched on ?
The anti -theft alarm system is switched on when you lock the
dr iver's door manually using your key, o r w hen you use the remote
control. The system is activated approximate ly 30 seconds after the
vehic le is locked. T he indicator light on top of the door trim s tart
flashing rapidly for 30 seconds and then b link slowly.
How is th e anti -theft alarm system switched off ?
The anti-theft alarm system is switched off only when you use the
r emote contro l to unlock your vehicle. If you do not open a doo r
within 60 seconds after you have un locked with the remote control,
the vehicle wi ll loc k itse lf aga in automat ical ly .
If you lock just the driver's door using your key , the front
passenger 's door, the rear and the fue l filler flap remain locked.
I f you use the veh icle key to unlock the driver's door, the other
doors , the rear lid and the fuel tank flap will remain locked . The
a lar m system wil l not be deactivated u nless you insert the key in the
ignition switch within 15 seconds and turn on the ignition . If you fail
to do this, the alarm wi ll sound.
Wh en w ill t he anti th eft ala rm sys tem b e trigg ere d?
When the vehicle is locked, the ala rm system monitors and pr otects
the fo llowing parts of the vehic le:
• engine compartment
• luggage compartment •
doors
• veh ic le incline
• ignition
• factory installed radio .
When the system is activated , the alarm will be triggered if one of
the doors, the engine hood or the rear lid are opened, or if the igni ­
tion is turned on or the radio removed or if the vehicle incline has
been changed .
The anti -theft alarm system wi ll also go off when you unlock the rear
lid with yo ur key and open it. The alarm is switched off again when
you c lose the rear lid .
The anti -theft alarm system wil l also go off when the battery is
disconnected.
You can also trigger the alarm by pressing the PANIC button on your remote c ontro l. This wil l a lert other people in case of emergency.
Press the
PANI C button again to turn off the a larm .
How i s the anti-theft alarm switched off when
trigg ere d ?
The ala rm system is switched off when you un lock the veh ic le using
the remote contro l or when the ignition is switched on . The a larm
wi ll also switch itse lf off when it co mes to the end of its cyc le .
Em ergen cy flash er
The emergency flasher wil l b link briefly when the doors, engine
hood and rear lid are properly closed .
I f the emergency flashers do not blink, check the doors, engine hood
and rear l id to make sure t hey are proper ly c losed . If you close a
door, the hood or the rear lid with the anti -theft a larm switched on,
the emergency flas hers wil l b link only after you have closed the
door or lid .
.,_

Opening and closing
Switches for rear windows
© operates the left rear window.
@ operates the right rear window.
Safety switch
© Safety switch for rear window operation.
_& WARNING
• Do not leave children unattended in the vehicle, especially with
access to vehicle keys. Unsupervised use of the keys can result in
starting of the engine and use of vehicle systems such as power
windows, etc. which could result in serious injury.
• Remember -you can still open or close the power windows for
about ten minutes after the ignition is switched off. Only when
either of the front doors are opened are the power windows
switched off.
• Be careful when closing the windows. Check to see that no one
is in the way, or serious injury could result!
• Always remove the ignition key whenever you leave your
vehicle.
• If you lock your vehicle from the outside, no one, especially chil­
dren, should remain in the vehicle.
• Do not stick anything on the windows or the windshield that
may interfere with the driver's field of vision. •
Switches in the driver's door
The driver can operate all windows.
If the respective switch is pushed or pulled the window will
open or close. The power window switches have a
two-posi­
tion function:
Opening the windows
- Push the switch to the first stop and hold it there until the
window has lowered to the desired position.
- Push the switch briefly to the
second stop: the window
wi ll automatically open all the way.
Closing the windows
- Pull the switch up to the first stop and hold it there until
the window has risen to the desired position.
- Pull the switch quickly to the
second position: the
window will automatically close all the
way => & in
"Controls" on page 65.
Activating/deactivating rear windows
- Push the switch to the depressed position to activate the
rear windows - the light in the switch will go out.
- Briefly press the switch to deactivate the rear windows -
the switch will return to the safety position and the light
~ will illuminate.
The safety switch©~ page 65, fig. 63 in the armrest on the driver's
door turns off the rear power windows. Only when the safety switch
is depressed can the rear windows be opened or closed . The symbol
in the safety switch illuminates when the power windows in the rear
doors are switched off (button NOT depressed) . This feature has
been provided for the safety of small children riding in the rear of
the vehicle.
[ i] Tips
The windows can still be opened and closed for about ten minutes
after the ignition has been turned off. The power windows are not
shut off until one of the front doors is opened .•

-To tilt the roof down to any intermediate position pull and
hold
the switch until the roof reaches the desired posi­
tion.
& WARNING
Improper use of the power sunroof can cause serious personal
injury.
• Be careful when closing the power sunroof. Not paying atten­
tion could cause you or others to be caught and injured as the roof
closes.
• Always take the key with you whenever you leave the vehicle to
safeguard against injuries caused by closing the roof.
• Never leave children or persons depending on assistance alone
in the vehicle, especially when they could access the vehicle keys.
Unsupervised use of the keys can result in starting of the engine
or in the use of vehicle systems such as the power sunroof, etc.
which could result in serious injury . The doors could be locked
with the remote key, delaying help in an emergency.
• The power sunroof will continue to operate until the ignition
key has been removed and one of the front doors has been
opened. •
Applies to vehic les: w ith powe r sunroof
Convenience closing feature
The power sunroof can be closed from outside with a
vehicle key.
-Insert the key into the driver's door lock.
-Turn and hold the key in the lock pos ition => & in
"Closing the power sunroof" on
page 68.
Controls and equip ­
ment
Opening and closing
[ i] Tips
The convenience feature cannot be activated by pressing a button
on the remote key uni t. •
Ap plies to vehic les: wit h p ower sunroof
Power emergency closing
The sunroof can still be closed electrically if for some
reason the overload protection function becomes acti ­
vated.
The power sunroof is equipped with an overload protection
feature. If, under normal conditions, the power sunroof will
not close , you can close it using this feature.
-Turn the rotary switch to position@=> page 68, fig. 65.
-Now pull the switch and hold it in this position until the
power sunroof closes completely.
& WARNING
Improper use of the power sunroof can cause serious personal
injury.
• Be careful when closing the power sunroof. Not paying atten­
tion could cause you or others to be trapped and injured as the
roof closes.
• Always take the key with you when you leave the vehicle to
prevent injuries caused by the roof closing
• Never leave children or persons requiring assistance alone in
the vehicle, especially when they could access the vehicle keys.
Unsupervised use of the keys can result in the engine being
started or use of vehicle systems such as the power windows, etc.
which could result in serious injury. The doors could be locked
with the remote key, delaying help in an emergency .
...

Clear vision
Clear vision
Lights
Switching the headlights on and off ·f!-·
Fig. 68 Instrument
panel: light switch
Fig .
69 Turn signal
lever : high beam
ON /OFF
All switch positions refer to the indentation on the switch
aligned with the specified symbol. The light switch must not
be overturned past the stops in
either direction.
Switching on the side marker lights
-Turn the light switch light to~ fig. 68 ;oo~. The indicator
ligh t
;oo; comes on when the parking lights are switched
on.
Switching on the headlights and high beam
-Turn the light switch to lD .
-Push the turn signal lever forward towards the instru-
ment panel, to turn on the high beam, pull the lever back
to turn it
off ~ fig. 69.
Switching off the lights
-Turn the light switch to 0.
The headlights only work when the ignition is switched on. While
starting the engine or when switching off the ignition, the head­
lights will go off and only the side marker lights will remain lit.
& WARNING
Crashes can happen when you cannot see the road ahead and
when you cannot be seen by other motorists .
• Always turn on the headlights so that you can see ahead and
so that others can see your car from the back.
I)),

• USA models: illumin ation of the in strument clu ste r (gauge s and
needle s), dash and center con sole around the gear shift lever i s
c ontrolled by a light sen sor l oca ted in the in strument panel . The
instrument panel illum ination will automatic ally become dimmer
a s the d aylight f ade s aw ay a nd e ventuall y will go out completel y
wh en out side light is very low . Thi s is to remind you , the driver , to
s witch on the he adlight s before it get s too dark.
• Canada model s: instrument panel illum ination will sta y br ight
rega rdle ss of the inten sity of ambient light . Al ways be aw are of
changes in outside light conditions while you are driving . Respond
in time to fading daylight by tu rning the light switch to position
1[D
(or "AUTO" if your car is equipped with this feature) to turn on your
he adlight s.
•
App lies to veh icle s: w it h xe non head lig hts
Xenon headlights
After sta rting the engine, the xenon head lights are automatica lly
adjusted to the load and angle of the veh ic le ( for example, during
accel eration and braking) . This prevents oncoming traffic from
experienc ing unnecessary headlight glare from your xenon head ­
lights.
I f the system is not operating properly, a warning symbol in the
Auto-Check Control is
displayed=> page 34. •
Controls and equip ­
ment
Cl ea r vision
Emergency flasher ~
The emergency flasher ma kes other motorists aware that
you or your vehicle are in an emergency situation .
Fig. 77 Ce nter
co nso le: e merg en cy
fl as he r sw it ch
- Press the switch &1. ~ fig. 77, to switch t he eme rgency
flasher on or off.
When the emergency flasher is on, all four turn signal blink at the
same time. The turn signal indicator lights ¢
9 in the instrument
c luster, as we ll as the light in the emergency flasher
switch ~ blink
likewise.
The emergency flasher wi ll automatically switch on if you are in an
accident where the airbag has deployed .
[ i] Tip s
You shou ld switch on the emergency flasher when :
• you are the las t vehicle standing in a traffic jam so that any other
vehicles coming can see you, or when
• your vehicle has broken down or you are in an emergency situa -
tion, o r when _.,

Clear vision
& WARNING
• Wip er blades a re c ruc ia l f or sa fe dri vin g! On ly whe n the y are in
good condition are th ey able to cl ear the window s properly to
p rovi de un comp romi sed vis ibilit y. Wor n or damaged wiper bl ade s
are a safety
hazard => page 88, "In stalling new wiper blades "!
• The rain sen sor i s onl y des igned to assist and s upport the
driver. It rem ain s entirely the driver's respon sibil ity to monit or
o ut side weather con dit ions and to manu ally acti va te the wipe rs as
s o on as rain or drizz le reduce s vi sibility through th e wind shield .
• The windshi eld mu st not b e treat ed w ith water -r e pellent m ate­
rials. T hey can increa se glare u nder poor visibilit y conditi ons such
as w etness, darkne ss, or when the sun i s low on the hori zo n. In
addition , they can caus e the windshield wipers to chatt er.
0 Note
I n freezing or near freezing conditions :
• Always check that the wiper blades are not frozen to the glass
before yo u turn the wipers on. Loosen a wiper b lade which is frozen
in place before operating the w ipers to prevent damage to the wiper
blade or the wiper motor.
• Do not use the wipers to clear a frosted window . Using the
wipers as a convenient ice scraper will destroy the wiper blades .
• Before you take your vehicle to an automatic car wash , make sure
you have the windshield w iper system switched off (lever in position
0), otherwise the windshield wiper system could get damaged in the
car wash if it should suddenly come on .
[ i J Tips
• The rain sensor is part of the interva l wiping system . Turning off
the ignition will also deactivate the rain sensor. To reactivate the sensor, switch off the interval wiping function, then switch it back
on again. •
If you switch off the ignition with the windshield wiper lever sti ll
in the interva l wipe position and then come back a while later and
drive off, the rain sensor will reactivate itself after the vehicle speed
has exceeded 4 mph (6 km/h) .
• Worn or dirty windshield wiper b lades cause smearing which
can affect the opera tion of the rain sensor . Check the conditio n of
your windshield wiper blades regularly .
• Make sure the washer fluid reservoir in the engine compartment
is topped off before going on a long trip . Look
up=> page 291 for
checking and filling the washer container .•
Rear vvindovv vviper (Q
The wiper lever is also used to operate the rear window
wiper and the automatic wiper/w asher function.
F ig . 8 7 Wip er lever:
a cti vating th e rea r
w indo w wipe r an d
was her
The rear win dow wiper a nd the au tomati c wip er/washer
f un ctions are activate d as fo llows:

Sea ts and stor ag e -______________ __,:_____.
0 Note
To avoid damaging the socket, on ly use plugs that fit properly.
[ i ] Tip s
When the engine is off and accessories are s till plugged in and are
on, the vehic le batt ery can stil l be drained. •
Outlets
The outlet in the front center console and in the luggage
compartment* may be used for 12 -volt appliances.
Controls and equip ­
ment
0
~ w CD
"'
F ig . 130 Ce nter
co nsol e, fr ont : 12 -vol t
out let
Outlet in the front center console
Fig . 1 3 1 Lugg age
co mp artm ent : 12- volt
o utlet
Fo ld the cover for t he out let down :::::, fig. 130.
-P lu g in applia nce to be used .
Outlet in the luggage comp artment *
-Tap cover :::::, fig. 13 1.
-Plu g in ap plian ce to be used.
The outlet may be used for 12 -volt appliances w ith maximum
c onsumption of up to 100 watts, such as a flash light, small vacuum
cleaner, etc .
Before you purchase any accessories, always read and follow the
information
in ::::, page 348, "Additiona l accessories and parts
replacement" .
& WARNING
The outlet plu s any applian ces plugged into it remain fun ctional
e ven if the ign ition is swit ch ed off or the ignition key i s removed.
Never leave children in side the vehicle without supervi sion. .,_
irechnical data