warning AUDI S4 CABRIOLET 2009 Owner's Guide

• For Declarat ion of Compliance to United States FCC and Industry
Canada regulations ~ page
320. •
App lies to ve hicles: w ith tir e p res sure mon it o ring syst em
Significant loss of air pressure
The yellow symbol appears in the event of a significant
Joss of air pressure.
i :c co CD
Fig . 28 Disp lay : ye llow
sy mbo l w ith message
If the warn ing light in the instr ument cl uster comes on
and then the ' symbol appears in the display => fig. 28,
press ure in a t least one t ire is too low .
- Stop driv ing as soon as possible, witho ut endange ring
yo urse lf and o ther motor ists .
- Inspect the tire or t ires .
Change the tire
if necessary =:, page 293.
The J warning light in the instrum ent cluster comes on when the
tire is significantly underinflated .
In addition , the tire symbo l l appears in the display together with
the message Please check tire pre ssur e~ fig . 28.
After a few seconds, the message disappears again . If you would
l i ke to show the message aga in, press the [ CH ECK] button .
Contro ls and eq uip­
ment
Dri ver informa tio n di spl ay
[ i ] Tip s
• In the case of an intentional loss of air pressure, for examp le,
when re -adjusting tire pressure, th is has to be stored again after ­
wards ~ page
43.
• Tire pressure must only be adjusted wh en the temperature of the
tires is about the same as ambient air temperature.
• The yellow symbol disappears, when the tire pressure is
corrected and the new pressure is stored in the system~ page
43.
• After changing a wheel you have to adjust the tire pressures on
a ll whee ls . In addi tion , you must then initialize the new tire pres­
sures in the tire pressure mon itoring system ~ page
45. •
Applie s to veh ic le s: w ith tir e p re ss ure mon ito rin g syste m
Adjusting and storing the tire pressure
(step 1)
Only when the specified pressure is properly entered into
the system, is the tire pressure monit oring system prop­
erly calibrated for accurate indications.
~ehicle care
Fig . 2 9 Wip er arm :
co ntr ols for th e tir e
pr ess ure
Technical data

Driver inf orma tion d ispl ay
Your tire change is incomplete if you do not access the Driver Infor­
mation System menu, and select and confirm
Wh eel ch ange. You
must do this each time to change a tire . The procedure can take up
to 20 minutes driving time. During this time, the sensors are read ­
justing to the new wheel/tire combination, and the new pressures are stored.
During the learning phase, the tire pressure monitoring system is
not available. •
Applies to vehic les: with tire pressure monitor ing system
Malfunctions
A malfunction can have various causes.
Fig . 35 Dis pl ay:
Syst em m alfu nct ion
If the 'warning light in the instrument cluster flashes for approxi ­
mately one minute and then remains continuously illuminated and
additional ly the --, -=> fig. 35 symbol appears in the display, the
tire pressure monitoring system is not available. This can have
various causes.
• If the message appears a t the end of the learning phase, the
system cannot recognize the wheels installed on the vehicle . This
can be because one or more wheels without a wheel sensor were
installed.
• A wheel sensor or other component may have failed. •
The system has detected more than 4 wheels in the vehicle, for
example while driving beneath another car with tire pressure moni ­
toring system.
• A tire was changed but the=>
page 45, "Changing a wheel"
procedure was not activated =>
page 45.
• Audi replacement parts were not used.
• If snow chains are being used, system function can be compro ­
m ised due to the shielding properties of the chains.
• The tire pressure monitoring system may not be ava ilable
because of a radio malfunction.
• Transmi tters with the same frequency, such as radio head ­
phones in the vehicle or radio equipment, can cause a temporary
disruption of the system through excessive electromagnetic fields.
• Try to find the cause of the interference, and then perform the
=>
page 45 , "Changing a wheel" procedure one more time . If this not
e liminate the prob lem, contact your authorized Audi dealer for
assistance .
• Do not use commercial ly availab le tire sealants . Otherwise, the
e lec trical components of the tire pressure monitoring system will
no longer work properly and the sensor for the tire pressure moni­
toring system wi ll have to be rep laced by a qua lified workshop .•

Opening and closing
Keys
Key set
@ Master key w ith rem ote con tro l
Fig . 3 6 Key set
You can centrally lock and unlock your vehicle and start the engine
with the master key with remo te contro l.
@Val et k ey
The va le t key fits only the driver's door and the ignition lock. If you
have to leave the key with somebody else, you are well-advised to
turn over the valet key only.
Be aware that the rear lid can be opened from inside t he veh ic le with
the remote rear lid release located in the driver's door. Before you
turn ove r the valet key you should therefo re lock the rear lid
mechanica lly with the master key.
Turn t he master key
clo ckwi se to the hor izont al posit ion and pull it
out. This has two effects:
• the
remote rear lid release i s dea ctivated ,
• the lid will rem ain lo cked when the power locking system is actu­
ated .
Controls and equip ­
ment
Op ening and clo sing
In this state the rear lid can be unlocked only with the remote
control unlock button
c::::5 on the master key.
© Em erg en cy key
The emergency key is only for temporary use if the vehicle key
should be lost or misplaced
~ & .
Key r epla cemen t
If you lose a key, contact your authorized Audi dea ler immediately
to have the /ostkey disab led. Be sure to bring all your keys with you.
& WARNING
• Do not leave your vehicle unattended wi th the key in the igni ­
tion lock. Entr y by un auth orized persons could e ndanger you or
re sult in theft or damage the vehi cle . Always lock all door s and
t a ke th e key.
• Do not le ave children unattend ed
in the vehicle , es pecially with
a cce ss to vehic le key s. Unguarded a ccess to the ke ys prov ide s
children th e opportunity to start th e eng ine and /or a ctivate vehicle
s y stem s suc h as the po wer w indo ws. Un sup erv is ed oper atio n of
an y vehi cle sy ste m by children can re sult in seriou s injury .
[ i ] Tips
• If you open the driver's door with the key left in the ignition lock,
a chime will sound . This is your reminder to remove the key and lock
the door .
• For security reasons, replacement keys are only available from
Audi dealers. •

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

Openin g and clo sin g
Power locking system
General description
The power Jocking system Jocks all the vehicle doors and
rear lid simultaneously or allows you to unl ock either just
the driver's door or all the vehicle doors and rear lid
simultaneously.
The power locking system in your veh icle incorporates the following
f unctions:
• Central locking function
• Remote contro l feature~
page 51.
• Anti -theft alarm system ~ page 57 .
All the doors and the rear lid are locked by the central locking
system when you lock the vehicle .
Unlo cking th e vehicle
You can unlock the vehicle from outside either by using the remote contro l
or by inserting and turning the key in the driver's door lock.
When you
unlo ck your vehic le:
• The anti-theft alarm sys tem is deact ivated briefly.
• The vehicle interior lights i lluminate for approximately 30
seconds.
• All turn signal lights will flash twice when the car is un locked.
• After un locking the vehicle, you have 60 seconds to open a door
or the rear lid. After 60 seconds, t he vehicle automatically locks and
the anti-theft a larm system activates again .
T he rear lid can be locked or unlocked either by using the remote
co ntro l
or by inserti ng and turning the key in the driver's door lock .
Un locking the vehicle with the remote control will only
unlock the
r ear lid, to
open it, the lid handle needs to be pressed . Lo
cking th e veh icle
You can lock the vehic le from outside e ither by using the remote
control
or by inserting and turning the key in the drivers's door lock .
When you
lock the vehicle:
• All doors and t he rear lid are locked .
• All turn signal lights w ill flash once when the ca r is locked.
• The anti -theft alarm system is activated . The horn of the anti ­
theft alarm sys tem will sound and the anti -t heft ala rm sys tem readi ­
ness l ight, located in the upper par t of the driver's door panel , wi ll
start to blink.
• The vehicle interior lights turn off .
Automatic locking*
The automat ic locking feature locks all the vehicle doors and the
rear lid when you drive faster than 9 mph (15 km/h).
You can unlock the vehicle from the inside by:
• removing the key from the ignition switch (the vehicle wil l auto ­
matically u nlock itself) or
• pressing the unlock pa rt of the power lock switch €:Dor
pulling the door handle (twice to open the door) .
If you wish, you can have an authorized Audi dea ler convert your
powe r door lock sys tem to automatic locking.
& WARNING
• When you lock your vehic le from out side , nobody -especially
c h ildren - should remain in side the vehicle . Remembe r, when you
lo ck the vehicle from the out side the windows cannot be opened
from the in side .
• When you leave the vehicle , alway s remove the ignition key and
take it with you . Thi s w ill prev ent pa ssenger s (children , fo r
example) from ac cidentally being locked in the vehicle should they
ac cidentally pre ss the power locki ng swit ch in the front door s. .,

& WARNING (co ntin u ed)
• Do n ot l ea ve c hildr en i ns ide th e vehicle un sup erv is ed. In an
e m erg en cy it w ould be impo ssible to op en the door s from the
out side without the key.
[ i ] Tip s
• In the event of a crash with airbag deployment all locked doors
wi ll be automat ically unlocked to give access to the vehicle occu­
pants from the outside.
• If the power locking system should fail, you can st ill open the
fue l tank flap in an emergency~
page 248.
• You are we ll advised not to keep va luables inside an unattended
vehic le, 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 un lock the vehicle
• selective ly un lock the rear lid.
The turn signals wi ll flash briefly whenever you lock or unlock the
vehic le . Also, the interior light will come on or go off whenever you
open or c lose the driver's door.
The 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 severa l things. Remember, if the battery
is weak, the effective range decreases .
The remote -control key contains a fo ld-ou t key that you can use to
manual ly lock or unlock the vehicle and to start the engine .
Controls and eq uip­
ment
Op enin g and clo sing
If 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 control works.
To unlock the v ehicle m
- Press button @.
Fig. 40 Remo te
co ntr ol: fu nctio n
b utt ons
- Press button @two times within two seconds to unlock
all doors and the rear lid .
To lock the vehicle [II
-Press bu tton @ => &, in "Gener al descri ption" on
page 50.
- Watch that all turn signal lights flash once.
To unlo ck r ear lid only ,c::;
- Press button @for approx imate ly one second.
~ehicle care Technical data

Opening and clos ing
PANIC Button
- Push the red button@to activate the panic function. The
horn sounds and the turn signals flash.
- Push the button® again to deactivate the panic f unc­
tion.
& WARNING
R ead a nd fo llo w all W ARNING S => & in "Ge nera l desc ription " on
page 50.
[ i ] Tips
• In order to make sure the locking function is working, you should
always keep your eye on the vehicle to make sure it is properly
locked.
• Do not use the remote control if you are inside the car, otherwise
you may unintentionally lock the vehic le, and then you would set off
the anti-theft alarm when you try to start the engine or open a door.
In case this happens anyhow, push the unlock button@.
• Use the panic function only if you are in an emergency
situation .•
R ese tting the remote control
The remote c ontr ol must be reset if the vehicle does not
unlock .
0
Fig . 4 1 Ign itio n l ock
p os it ions
- If the ve hicle is locked, o pen the driver's door with the
mechanical key i n your remote con tro l.
- Press the unlock button
III on the remote control.
- Insert the key into the ign ition lock
CD => fig. 4 1 and turn
it to position
0 to turn the ignition on .
Turn the key back to position
CD to t urn the ig nition off
agai n.
- Pu ll the key out of t he ig nition loc k.
- Press e it her the lock-1'.D or the unlock
III button to
com plete the reset sequence .
0 Note
Do not turn the key to position 0 for resetting as this will start the
engine and may put the car in motion .•

Doors, power locks
Operating locks vvith the key
To lock and unlock the vehicle from the outside, turn the
key in the lock of the driver's door.
To unlock the driver's door only
Fig . 42 Key turns for
opening and closing.
- Insert the key into the lock of driver's door.
- Turn the key
one time only to pos ition @=>fig. 42 to
unlock the driver's door .
To unlock all doors and the rear lid Turn the key
two times to pos ition @=> fig. 42 to unlock
the veh icle
To lock the vehicle - Close all windows and doors properly.
- Turn the key in the lock of the driver's door to the lock position
@ ~ & in "General descript ion" on page 50.
Contro ls and eq uip­
ment
Opening and closing
& WARNING
Always read and heed WARNING~ & in "General description" on
page 50. •
Convenience close /open feature vvith the
lock in the driver 's door
You can close or open the windows and the power top
from outside when you lock or unlock your car with the
key.
Closing the windows
- Insert the key into the lock of the driver's door.
- Make sure that the windows are not blocked~& .
- Turn and hold the key in the lock position @=>fig. 42
until the w indows are completely closed.
Opening the windows
- Press button @ on the key
twice to unlock the car.
- Insert the key into the lock of the driver's door .
- Turn and hold the key in the open position @.
Opening/closing power top
- See =>
page 63, "Convenience opening and closing of
power top" to operate power top with the key.
The automatic close function will cease if the key is released. For
safety reasons it is not possible to open and close the power top
with the remote control key . ..,
~ehicle care Technical data

Opening and closing
& WARNING
• Be careful when closing the window s. Check to see that no one
is in the way, or serious injury could result !
• Always read and heed WARNING~
& in "General des cript ion "
on
page 50. •
Locking and unlocking the vehicle from inside
T he vehicle can be l oc ke d or unlocked from the insid e
usin g th e pow er lock in g switches lo ca te d in t he driver's
a nd the f ront pas senger d oor.
t----~~~....,.~--,.,:,,....,...,..,.~..,...,. ..... ...,..,.._,......,...,......., ij
i
Fig . 4 3 Driv er's door:
po wer lo cking sw it c h
How to lock all doors and the rear lid
simultaneously
Press l ower part o f the po wer loc kin g s witch
IJt,,=
=> fig . 43 => & .
How to unlock all doors and the rear lid
simultaneously
- Press the uppe r part o f the switch
How to unlock each door separately using the
door handle
- Pull the handle to o pen th e do or.
If you loc k the vehicle us ing the power lo cking switch c»= , please
no te the foll owi ng:
• You cannot open the doors or the rear lid from the
outside
!increased security, for example when you are stopped at a red
li g ht).
• The diode i n the powe r loc king switch ill uminate whe n all the
doors and the rear lid are c losed and loc ke d .
• You ca n unl ock and o pe n t he d oors from the in side by pull ing o n
t h e door ha ndle.
• I f th e driver's door is opened (a fter you have locke d the ve hicle
from the inside using the power locking switch), the door will
rema in unlocke d to prevent you from locki ng y ourse lf out o f yo ur
veh ic le. Aft er you c lose t he door, you have to lock the d river 's doo r
agai n.
• I f you have an accident and the airbag is activated, the doors
u nl ock au tomaticall y.
& WARNING
• If you use the power locking switch with the doors closed ,
remember that all the vehicle doors will lock .
• Locking doors from the inside can help prevent inadvertent
door opening during an accident and can also prevent unwanted
entry from the out side . Locked doors can, however , delay a ssis­
tance to vehicle occupant s and hold up rescue efforts from the
outside in an accident or other emergency.
[ i ] Tips
Be awa re t hat t he rear lid can be op ened from insi de th e vehic le with
the remote rear lid release located in the driver's door. Before you _,.

Opening and closing
As a general rule, you should use the remote control key to
lock and unlock the rear lid
c:5 =:> page 51. With the key slot
in the vertical position the rear lid can be
locked and
unlocked
by the power locking system using either the
remote-control- or the fold-out key:::::>
page 50.
Opening the rear lid
-Pull the handle :::::> page 55, fig. 47 while lifting the lid.
Closing the rear lid
-Pull it down and shut it firmly:::::>& . There is a recess in
the interior trim of the lid to make it easier to pull down.
To unlock the rear lid with the key
- Turn the key from the vertical to position @ :::::> page 55,
fig. 46 the lid springs open slightly.
- Open the lid.
To lock the rear lid with the key
-Turn key slot to horizontal position @.
Turning the key counter-clockwise to position @will release the
rear lid and cause it to rise slightly. In this position the key cannot
be pulled out of the lock cylinder.
Turning the key
clockwise to the horizontal position@ and pulling
it out will cause the
lid to remain locked when the power locking
system is actuated.
In this state the rear lid can only be unlocked with the remote
control unlock button
c:::5 on the master key.
After you turn the key
counter -clockwise back to the vertical posi­
tion, the rear lid will again respond to the power locking system.
& WARNING
• After closing the rear lid, always pull up on it to make sure that
it is properly closed. Otherwise it could open suddenly when the
vehicle is moving .
• To help prevent poisonous exhaust gas from being drawn into
the vehicle, always keep the rear lid closed while driving . Never
transport objects larger than those fitting completely into the luggage area, because then the rear lid cannot be fully closed .
• Never leave your vehicle unattended especially with the rear lid
left open. A child could crawl into the car through the luggage
compartment and pull the lid shut, becoming trapped and unable
to get out. To reduce the risk of personal injury, never let children play in or around your vehicle. Always keep the rear lid, as well as
the vehicle doors, closed when not in use.
[ i] Tips
In case of an emergency , the rear lid can be opened from the inside
using the trunk escape handle~
page 290. •
Remote rear lid release c::::5
You can open the rear lid from inside the vehicle using a
switch in the driver's door.
Fig. 48 Driver's door,
rear bottom: remote
rear lid release ...