warning light AUDI S4 CABRIOLET 2009 Owner's Manual

• 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 .•

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 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 ...

Power top
Wind deflector
Applies to veh icles: with wind def lector
General notes
The wind deflector reduces turbulent airflow inside the
vehicle for greater comfort when driving with the power top open.
The optional wind deflector is stored in a bag in the luggage
compartment. To prevent damage it should always be kept in this
bag when not installed. Do not place heavy objects (e.g. crates or
heavy shopping bags) on top of the wind deflector.
& WARNING
• The two rear seats must not be occupied when the wind
deflector is installed.
• Do not place any objects on the horizontal surface of the wind
deflector. The deflector is not designed to support loads. Be also
aware that objects left there could be blown off by the airstream
when the vehicle is moving. -Risk of injury!
0 Note
When you adjust the front seats when the wind deflector is
installed, be careful not to push the backrests into the wind
deflector when reclining the seats or when moving them back. This
can damage the deflector, especially the locking mechanism. •
Applies to vehic les : w ith wind deflector
Unfolding the wind deflector
C
Fig . 58 Unfolding the
wind deflector
Fig . 59 Extending the
fastener pegs
- Fold the two side sections outwards G) ~ fig. 58. Hold
the deflector facing slightly downward. This will cause
the bottom section to fold out by itself .
- Bring the two side sections together and join them with
the plug-in fastener@.
- Pull out the two fastener pegs at the sides~ fig. 59. •

Pow er to p
R emovin g
- Make sure the single piece section is folded up and
engaged in the vertical position as illustrated=> page
67,
fig. 62.
- Push the arresting pin on each side inward until the arresting button (darker green in => page
67, fig. 62) pops
up.
- Slightly slide the horizontal deflector sect ion forwa rd to
clea r the upholstery and then lift t he deflector out of the
veh icle.
- Turn the deflector so t hat its split sect ion points up verti­
cally as shown
G) => page 67, fig. 63
Folding
- Fo ld the reta iner pegs fl ush ag ainst the frame, small
arrows
(D => page 67, fig . 63 .
- Grab the split section at the top on both sides of the joint
and pull it apart in the direct io n of the bold arrows @.
- Fo ld the split halves down until they meet at the bottom.
- Fold the split halv es fo rward in the directi on of bol d
arrows @.•
Operate the power top manually
General notes
The po wer top can be closed manually in the event of a
malfunction.
- App ly the handbrake. - Lower the wi
ndows.
Remove the igni tion key.
You should operate the power top manually only if automatic oper­
ation does not wo rk. It is best to contact an Aud i dealer to identify
the cause of the ma lfunction .
Follow this procedure step by step to close the power top manua lly:
• Relea se a nd open the storage bay cover: you must use the
manual release key to unlock the storage bay cover . Unlock the
cover and swing i t ope n.
• Lift th e power top out and unfold it : lift the top out of the storage
bay by hand and extend it forward to the windshield.
• Lock the power top in pla ce: you must use the manual release
key to proper ly engage and lock the power top to the windshie ld.
& WARNING
• Ta ke care not to r ea ch in side the link age me ch an is m or a ny
moving p arts when you lift out and unfold the power top . Carel ess
h andling ri sk s injurie s to your hand s and finger s!
• Nev er driv e the car w it h a power top that is not securely locked
i n pl ace.
If it is not firmly engaged , th e top c an be blo wn ope n by
the air stream and c ause injurie s and damag e to the veh icle . - R isk
of cr ash!
0 Not e
The trunk lid must be closed be fore opening the storage bay cover
as otherwise the two panels can collide . T his can cause consider ­
able damage to the surfaces on both parts.
[ i ] Tips
It is advisable to have a second person assist you wi th closing the
power top. Particularly the part of folding up and extending the top
~

Inserting the release key into the locking
mechanism
-The re lease key must be configured for insert ion
=>
page 69, f ig. 66. Turn the red handle segment counter ­
clockwise to the stop to configure the key for insertion.
- Insert the release key in to the hole in the roof of the ski
sack tunnel :::>
page 70, fig. 69.
- Turn the release key either way until you can feel the lugs
at the tip of the key engage inside the locking mecha­
n ism.
- Rotate the release key a quarter turn clockwise to the stop . The release key is now
hanging engaged in the
locking mechanism of the storage bay cover :::>
page 70,
fig. 70.
Unlocking the storage bay cover
- Turn the red handle segment on the release key clock­
wise until it you can hear it engage.
- Turn the entire release key counter -clockw ise to the stop.
This unlocks the storage bay cover. It will spring up
slightly out of the latches :::>
page 70, fig. 71. •
Controls and eq uip­
ment
Power top
Step 3 : Opening the storage bay cover
The storage bay cover must now be folded up to the stop.
Fig . 72 Opening the
storage bay cover
-Pull up the storage bay cover :::> fig . 72.
- Open the storage bay cove r as far as it will go. It will stay
open by itself in th e upright position =>& .
& WARNING
Make absolutely sure that the storage bay cover is opened all the
way to the upright position. It will stay open in this position by
itself .
If it is not lifted up to the fully open position, the storage bay
cover can drop back down onto you or another person in its path.
- Risk of injury! •
~ehicle care irechnical data