2009 AUDI A4 CABRIOLET display

Master key battery replacement
Each master key contains a battery housed under the
cover.
Fig. 39 Master key:
opening 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. 39
@ and the cover @carefully
with a coin.
- Remove the cover (arrow).
- Remove the dead battery from the cover.
- Install the new battery. Please make certain that the"+"
sign on the battery faces down. Correct polarity is shown
on the cover.
- Place the cover with the new battery on the key base and
press both parts together.
W For the sake of the environment
Dispose of dead batteries properly so as not to pollute the environ ­
ment.
Contro ls and eq uip­
ment
Opening and closing
[ i] Tips
The replacement battery must be the same specification as the
original. •
Electronic immobilizer
The immobilizer helps to prevent unauthorized use of
your vehicle.
A computer chip inside your key automatically deactivates the elec­
tronic immobilizer when you insert the key in the ignition lock.
When you remove the key from the ignition lock, the electronic
immobilizer is automatically activated once again.
If an unauthorized key was used,
SAFE is displayed continuously in
the odometer display field.
in. WARNING
Always take the key with you when you leave the vehicle. The key
can disarm the electronic engine immobilizer and permit an unau­
thorized person to start the engine and enable operation of the
vehicle systems such as power window or power top leading to
serious personal injury.
[ i] Tips
• Your engine can only be started using the factory -equipped key.
• 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.
• For Declaration of Compliance to United States FCC and Industry
Canada regulations
~ page 320. •
~ehicle care irechnical data

Power top
Normal operation
General information
The power top is designed for quick and easy operation. The power
top opens and closes automatically by itself . When the top is folded
dow n, it is stored in a special compartment and hidden under a
cover.
The power top is both wind -and waterproof under normal oper ­
ating conditions . Only under extreme weather conditions, for
examp le, a violent burst of rain or torrentia l rainfall, can a few drops
of water possibly form inside the roof. This is normal and no cause
for concern.
To maintain the appearance of the power roof and to keep it water ­
proof , read the information on roof care in=> page
233, "Power top
care". In addition to this, please note the following:
• Always open or close the power roof on ly when it is clean . Other­
wise particles of dirt can scratch the rear window when the power
top fo lds down . The particles can chafe a nd damage the fabric over
a period of time. It is a lso important to remove ice and snow before
opening the power roof.
• Do not use a sharp object or any other tools, which cou ld scratch
t he fabr ic when removing ice or snow. A normal ice scraper can be
used to remove ice from the rear window.
• The power roof should be opened only when it is completely dry .
I f you open and store the power roof when it is wet, unsight ly marks
or mildew can form if left for long per iods of time .
• Never leave the roof open for severa l weeks at a time. You should
close it occasiona lly to prevent discoloration in the folds of the
fabric and to allow the creases to smooth out. This is especially
impor tan t if t he top has once been s tored away when it was not
completely dry .
Controls and equip ­
ment
P ow er top
• Do not open the power when it is colder than 32 °F (0 °C). At
these temperatures, the fabric is less flexible.
L1}. WARNING
• For safety reasons never open or close the power top when the
v ehi cle is moving .
• Never drive the vehicle without the power top securely locked
in the closed po sition . If it i s not firml y en gaged , the top can be
blown open by the airstream and cau se in jur ies and damage to the
vehi cle . - Risk of cr ash!
• When opening and closing the power top m ake sure to keep
yo urself and other s clear of all moving pa rt s. Risk of injury!
• During opera tion of the power top the head clearance in the
re ar of the vehi cle is r edu ced . Alw ay s m ake sure that rea r seat
p assen gers keep clear of the power top a s it is being opened or
cl osed . Ri sk of injury!
[ i ] Tip s
• The power top can only be operated w ith the ignition switched
on.
• To avoid unnecessary strain on the battery, you should not open
and c lose the top several times in a row when the e ngine is n ot
running.
• The display in the ins trument cluster will indicate if a pr otective
feature of the power top has been activated or if a malfunction
occurs ~ page
64.
• In case of a ma lfunction the power top can be operated manu­
a lly. This is intended for a limited time only~ page
68, "Opera te the
power top manually" . T he cause of the malfunction should be
tracked down and repaired by an au tho rized Aud i deale r as soon as
possible . _.,

Pow er t op
Variable power top storage bay
The bottom of the variable storage bay can only be raised
when the top is closed and NOT folded up inside the bay.
Lifting th e stor ag e bay bas e
Fig. 55 Lug gage
co mp artm ent: va riab le
st orage bay, bottom
d ow n
F ig . 5 6 Lu ggage
co mp artm en t: varia ble
s tora ge b ay, bo ttom u p
Move the lever to position @ to raise the storage bay
bottom =>
page 64, fig. 55.
Lowering the storag e bay bas e
-Move the lever to pos ition @ to lower the var iab le
storage bay=> fig. 56 .
The storage bay bottom can only be lifted when the top i s clos ed
and NOT folded up in side the ba y.
This creates more space in the
luggage compartment . The storage bay base must be in the lowered
position before the top can be lowered.
When the top
o pe ns it folds down completely into the storage bay
des igned to contain it. Only with the storage bay expanded is it
poss ible to open the top . This feature prevents the top from forcing
i t s way down agains t objects blocking its storage space . For this
reason your vehicle has less luggage capacity when the top is down
than when it is up and closed . It is not possible to lift the base of the
storage bay when it contains the folded down top .•
Messages in the instrument cluster display
If the power top fails to activa te when you operate the
control switch, a message will appear in the display to
indicate what is wrong.
Before the power top can start to open or close automatically, a
number of conditions must be met . The systems checks, for
instance, if the storage bay has been expanded before the power
top opens.
The instrument c luster disp lay will generate a message if one of
these condi tions does not check right or if a malfunction occurs .
Power top: ple ase clo se rear lid
The lid on the trunk must always be closed when opening or closing
t he power top . This message will appear in the display if the trunk
lid is not closed .
Power top: pl ease low er stor age ba y
The variable storage bay must be in the lowered (expanded) posi ­
tion before the power top can be opened=> page 64 . This message
will appear in the display if the variable storage bay is not in the lowered position (lever to the right) when opening the power top. ..,

Power top: ca nnot b e use d
Power top not operating
This message wi ll appear in the display if the power top has been
deactivated for safety reasons or if there is a malfunction. Possible
causes are:
• vehicle speed t oo high: the power top operation is deactivated
for safety reasons if the vehic le is mov ing at a speed above 3 mph
(5 km/hi.
• battery voltage too low: the power top wil l not operate if the
battery voltage is too low . This is a precautionary feature to make
s u re that the re is always enough battery power avai lable to start the
engine. The power top can be activated again once the engine has
been started and is running.
• ove rload cut -off: if the power top is operated repeatedly the
hydraulic actuator components will be severely stressed . In this
case the over load cut -off will safeguard the system against damage.
This safeguard deactiva tes the system fo r abou t 15 to 30 minutes.
After this time the power top can be operated again as usual=> & .
• Malfunction: One possible cause of a malfunction is the fai lure
of a system component. In this case the power top can a lso be
manual ly operated =>
page 68. Turning off the ignition during the
opening or closing process may cause a malfunction. You can
correct this yourself=>
page 65.
Pow er top no t sec ure
Power top not locked in place
If the top has not opened or closed completely and the vehicle
moves then at a speed above 3 mph (5 km/h), this
warning will
appear in the instrument cluster display. Stop the vehicle. Open or
close the power top completely. The warning should disappear .
& WARNING
Never drive the car with a power top that is not securely lock ed in
place . If it i s not fir mly engaged , the top can b e blown ope n by the
Contro ls and eq uip­
ment
P o w er top
& W ARN ING (conti nued )
airstre am and ca u se injur ies and damage to the vehicle . - Risk of
crash !•
Correcting a malfunction
Turning off the ignition durin g the opening or closing
process may cause a malfunction.
F ig. 57 Power top
cov er in end p osition
App ly the hand b rake.
Sw it c h t he igniti on off .
Fold the powe r top cove r upward un til it engages.
Stow the power top in the powe r top compa rtment.
T ur n on the igni tion.
Press or pull the swi tch f or p ow er top operatio n
~ page 62, fig . 52 un til the powe r top is f ully clos ed o r
open .a
~ehicle care Technical data

Applies 10 vehic les: with light senso r package
Sensor activated head -and tail light control
In the "AUTO" position, light sensors monitor outside light
conditions and s witch the head- and t ail lights on and off
as required.
Activating
F ig . 87 Instru men t
p an el: li ght sw itch at
A UTO pos ition
- Tur n the light switch ~ fig. 87 to positi on AUTO.
Deactivating
- Turn the light switch to posit ion 0.
In the switch position AUTO the automati c head -a nd ta il light
contr ol
is activated . The corresponding symbol on the light switch
is lit.
Light sensors located in the ins ide mirror housing and stem
constantly check the light conditions surrounding the vehicle . If
ambient brightness falls below a factory set value (e .g. when driving
into a tunnel), the head -and tai llights including the license plate
illumination are automatically turned on. When ambient brightness
increases again, the external lights are turned off again
=> & -
Contro ls and eq uip­
ment
Cle ar v ision
& WARNING
• Autom ati c head - and tailli ght control is only int ended to a ss is t
the driver . Th is feature does not reli ev e th e driver of h is res pon si­
bilit y to che ck the headl ights and to turn them on m anuall y
according to the current light and vi sibilit y condition s. For
e xa mple , fo g and r ain cannot be dete cted by the light s en sor s.
Consequently , alw ay s swit ch th e headlights
fD on under the se
we ather condition s and when driving in th e da rk .
• Crashe s can happen when you cannot s ee the road ahead and
w hen you cannot be seen by oth er m otori sts .
• Alway s turn on the headlight s so that you can see ahead and
s o that others ca n s ee your car fr om th e back.
[ i ] Tip s
• In the AUTO mode , the low beams are turned off when the igni ­
tion is turned off. The remaining lights are turned off when the key is taken out of the ignition lock.
• Do not at tach stickers to the windshield in front of the sensors as
this can disable the automatic head- and taillight contro l and the
automatic glare -dimming of the rearview mirror(s).
• Always observe the specific local regulations for your area when
to use your lights .
• In the event of a light sensor malfunction, the driver information
display wi ll show the sy mbol -.
If a light sensor malfu nction is indi ­
cated, you must use the light switch to turn the low beams on and
off. a
~ehicle care irechnical data

[ i J Tip s
• Do not attach any stickers to the windshield in front of the two
light sensors, as this would interfere with both the automatic oper ­
ation of the head ligh ts and the automatic dimming of the inside
mirror(s).
• If the veh icle is remotely un locked and locked
three times in
succession,
leaving home will not turn on the lights a fourth time to
safeguard the battery and lights.
• If you wish to use the coming home/leaving home function regu ­
larly, you can leave it activated at all times wi thout risking perma­
nent strain on the electrical system. As the system is contro lled by
light sensors, i t wi ll only b e energi zed in darkness.
• Frequent use of the coming home/leaving home function for
approac hin g and departing a vehicle parked in the dark wi ll strain
the batte ry. This applies particularly if only short distances are
driven between stops . Occasiona lly drive longer distances to make
sure the battery is recharged sufficient ly.
• If the fo g lights have been switched on by the coming
home/leaving home function, they will always be switched off when
you switch on the ig nition. •
Contro ls and eq uip­
ment
Cle ar v ision
Instrument panel illumination
The ill umina tion of the ins trume nts, dis pla ys and the
cente r consol e can be adjusted.
9:3 6
02.11.2008
Fig . 9 2 Instru men t
pane l illum in a ti on
Press the"+" button to increase the brigh tness .
Press the" -" b utton to reduce the br ig htness.
Igniti on ON , light swit ch at @ .
With the ignition switched ON, the glow of instrument needles can
be adjusted to appear brighter or dimmer.
Ignition ON , light switch at :oo: or gD.
With the lights switched on, the brightness of instrument cluster
(i .e. needles, gauges and displays) and center c onsole il luminat io n
can be adjusted .
0 Note
The instrument c luster and center console i llumination ( gauges and
needles) comes on when you swi tch on the ignition and the
vehicle
headlights are off .
Be aware of the following difference between
models built to US or Canadian specifications:
• USA model s: illumination of the in strument cluster (gauge s and
needles ), dash and center conso le around the gearshift lever is
controlled
by a light sen sor located in the instrument panel. The .,
~ehicle care Technical data

Clear vision
inst rument panel ill umination will automaticall y become dimmer
a s the daylight fades away and eventually will go out completely
when out side l ight i s very low . Thi s is to remind you , the dri ver , to
s witch on the headlights befor e it g ets too dark.
• Canada model s: instrument panel illumination will stay bright
re gardles s of the intensity of ambient light . Alway s be aware of
c hange s in outside light cond itions while you are d riv ing . Resp ond
in time to f ading dayl ight by turning the ligh t switch to po sit ion
io
(or "AUTO" if your car is equipped with this feature) to turn on your
he adl ights . •
Ap plie s to vehic le s: wi th x eno n hea dlig ht s
Xenon headlights
After s tarting the engine, the xenon headligh ts are automatically
adjusted to the load and angle of the vehicle (for example, during
acce leration and brak ing) . This prevents oncoming tra ffic from
experienc ing unnecessa ry glare from your head lights .
If the system is not operating properly, a warning sy mbol in the
Auto -Check Contro l is displayed:::::,
page 34. •
Emergency flasher &.
The emergency flasher makes other mot orists aw are that
y o u or your vehicle are in an emergency situation.
1Jia---------------...,i ij ::c .,
"'
-
Fig. 9 3 Ce nter
cons ole: e mergen cy
fla sher swit ch
Press the sw itch ~~fig . 93, to sw itch the emergency
fl ash er o n or o ff.
When the emergency flasher is on, al l four turn signa l blink at the
same time . The turn signal indicator lights¢¢ in the instrument
cluster, as we ll as the light in the emergency flasher sw itch
t!:;,,. b link
likewise .
The emergency flasher will automatica lly switch on if you are in an
accident where the airbag has deployed .
[ i ] Tips
You should switch on the emergency flasher when :
• you are the last vehicle stand ing in a t raffic jam so that any other
veh ic les coming can see you , or when
• your vehic le has broken down or you are in an emergency situa ­
tion, or when
• your veh ic le is being towed by a tow truck or if you are towing
another vehicle behind you .•

Clear vision
selector lever into R (Reverse). This feature provides a better view of
the curb when you are backing into a parking space.
The mirror returns to its initial position as soon as reverse gear is disengaged and vehicle speed is above about 9 mph (15 km/h). The
mirror also returns to its initial position if the switch is moved to the
driver's outside mirror © or@ .
Memory setting for the outside mirrors*
On vehicles with the memory function*, when you store a seat posi ­
tion in the memory, the position of the outside mirrors is also stored
in the memory =>
page 101.
0 Note
• Curved (i.e. convex) mirror surfaces increase your field of view.
Remember that vehicles or other objects will appear smaller and
farther away than when seen in a flat mirror . If you use this mirror to
estimate distances of following vehicles when changing lanes, you
could estimate incorrectly and cause an accident.
• If the mirror housing is moved unintentionally (for example,
while parking your vehicle), then you must first fold the mirror elec­
trically. Do not readjust the mirror housing manually. You could
damage the motor which controls the mirror.
[ i] Tips
I f there should be a malfunction in the electrical system, you can
still adjust the outside mirrors by pressing the edge of the mirror. •
Applie s to vehic les : w ith au tomat ica lly dim ming ou ts id e m irrors
Automatic dimming for the outside mirrors *
The outside mirrors dim at the same time as the inside mirror. When
th e ignition is switched on, the mirrors automatically dim
depending on the amount of flight striking the mirrors (such as
headlights shining into the vehicle from the rear). When you switch on the interior light, or when you move the
selector lever into
R (Reverse), the dimming function stops and the
mirrors return to their original condition (not darkened).
[ i] Tips
The automatic dimming feature on the mirrors will not operate
properly if the light shining on the mirrors is blocked by other
objects .•
Digital compass
Ap plies to veh icles : with digita l compass
Activating or deactivating the compass
The direction is displayed on the interior rear view mirror.
Fig. 102 Inside rear
view mirror: digital
compass activated
To activate or deactivate, hold the©~ fig. 102 button
down until the red display appears or disappears.
The digital compass only works with the ignition turned on. The
directions are displayed as initials:
N (North), NE (Northeast), E
(East), SE (Southeast), S (South), SW (Southwest), W (West), NW
(Northwest).