2009 AUDI S3 warning light

-~_C_ h_e _c _ k_ i_n ...:::g::;...._ a_n_ d_ f_ i_ll _in -'g:::;.._ ___________________________________________ _
Applies to vehicles: w ith 4-cy linder engine
Charging of battery (4 -cylinder engine)
All work on the battery requires technical knowledge!
A charged battery ensures good star ting performance. A
discha rged battery can
freeze at temperatures of only O °C.
A thawed battery must be replaced, as the battery housing may be cracked due to freez ing and could therefore leak
acid .
-Always read and heed all WARNINGS below=> & and
=> & in "Working on the battery" on
page 238.
-Sw itch off the ignit ion and all e lectr ica l co nsumers .
- Make s ure the a rea is we ll ven tilated when y ou c harge
the batte ry.
- Connec t cha rger cab les.
Charger cable s mu st alway s be
conne cted POSITIVE
G) to POSITIVE G) and NEGATIVE Q
to NEGATIVE Q.
- Switch on the charger.
- Make sure the charging rate is not over 6 amps.
- Turn off th e ch arge r=> & .
- Disconnect the c harger cables.
- Connect both battery cables to the battery if necessary -
first plus, then minus .
The battery must not be opened!=> 0 in "General information" on
page 236.
It is not necessary to remove the battery from the engine compart ­
ment, and it is also not necessary to disconnect the cables .
Normally, a battery shou ld be charged at no more than 10 percent
of its rated capacity. For example, a charging
current of 4.5 amps would be used on a
b attery rated at 45 Ah. Rated capacity of the battery in your vehic le
is listed on the battery housing.
The battery caps should
not be opened when charging a battery .
& WARNING
Charging a battery c an be dangerou s.
• Never ch ar ge a fro zen batt ery. It m ay ex pl ode be cause of g as
trapped in the i ce. Allow a fro zen battery to thaw out fir st.
• Do not reu se b atteries whic h w ere fro zen . The batter y housing
ma y hav e cra cked and weakened when the batter y fro ze.
• Charge the b atter y in a w ell vent ila ted area . K eep away from
open flame or e le ctric al s p a rk . Do not smoke . Hydrogen g as gener ­
a ted by t he b attery i s ex plo sive .
• To redu ce the dang er of e xplo sion , never connect o r di sconnect
c h arger cables while t he ch arger is operating .
• Fas t ch ar ging a batte ry is dang erou s and should only be
att empted by a comp etent techni cian with the proper equipment .
• Batter y ac id that m ay spill durin g ch arging should be wa shed
off with a solution of warm water and baking soda to neutr alize
the acid.
0 Note
Never use a fast charger as a booster to start the engine. This will
seriously damage sensitive electronic components, such as control
units, re lays, radio, etc ., as well as the battery charger.
[ i ] T ips
The veh icle battery must not be charged with a standard sma ll
charger that plugs into the cigarette lighter or out let. •

_____________________________________________ C_h_ e_ c _ k_in -= g_a _ n_d _ f_il _li _n ..;::g =-- ____.•
Ap plies t o vehicles: w ith 6 -cylin d er engine
Charging of battery 6 -cylinder engine )
All work on the battery requires specialized knowledge!
The battery is maintenance-free and is inspected regu ­
larly as part of vehicle service.
If starting problems occur because the battery charge is too low,
this may indicate a defective battery. In this case we recommend
having a qualified workshop inspect and charge the battery or
replace it if necessary. A discharged battery can
freeze at tempera ­
tures of only O °C. A thawed battery must be replaced, as the battery
housing may be cracked due to freezing and could therefore leak
acid.
Charging the battery
Battery charging should be performed by a qualified workshop,
since batteries employing a special technology are used which
require current-limited constant voltage charging.
0 Note
The vehicle may be optionally equipped with a gel battery, which can only be charged at a constant current-limited voltage.
• To prevent damage to the battery and the electronics system, a
gel battery that is connected must under no circumstances be
charged with a quick charger.
[ i] Tips
The vehicle battery must not be charged with a standard small
charger that plugs into the cigarette lighter or outlet. •
Windshield washer container
Using plain water is not adequate for filling the wind­
shield washer system.
Fig . 179 Engine
compartment : wind­
shield washer fluid
container
The windshield washer fluid container is located on the
right side of the engine compartment~ fig. 179. The
washer fluid container is marked with the symbol %Pis on
its cap.
- Before you check anything in the engine compartment,
always
read and heed all WARNINGS~ & in "Working
in the engine compartment" on
page 225.
-Lift the filler cap tongue to add washer fluid. You can fill
the container to the top.
- Press the cap back onto the filler neck after filling the
container.
You can find the reservoir capacity in the table in~ page 300.
To prevent lime residue from building up on the spray jets, use
distilled water when refilling. Always add a glass cleaner solution
(with frost protection in the winter}. .,._
Vehicle care I I irechnical data

___ T _i_r e_=- p_r_e _ s_ s_ u_r_ e _ m_ o_ n_i_t _o _r_ i _ n .,;:g ::;.._ s_ y=--- s_t _e _m_ * __________________________________________ _
Tire pressure monitoring system*
Applies to vehicles: with tire pressu re monitoring system
General notes ' J
Each tire, including the spare (if provided), should be checked
monthly when cold and inflated to the inflation pressure recom ­
mended by the vehicle manufacturer on the vehicle placard or tire
inflation pressure label. (If your vehicle has t ires of a d ifferent size
than the size indicated on the vehicle placard or tire inflation pres­
sure label, you should determine the proper tire inflation pressure
for those ti res.)
As an added safety feature, your vehicle has been equipped with a
tire pressure monitoring system (TPMS) that i lluminates a low tire
pressure tellta le when one or more of your tires is significantly
under-inflated. Accord ingly, when the low tire pressure telltale illu­
minates, you shou ld stop and check your tires as soon as possible,
and inflate them to the proper pressure. Driving on a significantly
under-inflated tire causes the tire to overheat and can lead to tire
failure . Under -inflat ion also reduces fuel efficiency and t ire tread
life, and may affect the vehic le's handling and stopping ability.
Please note that the TPMS is not a substitute for proper tire mainte ­
nance, and it is the driver's responsibi lity to maintain correct tire
pressure, even if under -inflation has not reached the level to trigger
il luminat ion of the TPMS low tire pressure te lltale.
Your vehicle has also been equipped with a TPMS ma lfunction indi­
cator to indicate when the system is not operating proper ly . The
TPMS malfunction indicator is combined with the low tire pressure
telltale. When the system detects a malfunction, the tellta le wi ll
flash for approximately one minute and then remain continuously illuminated. This sequence will continue upon subsequent vehicle
start-ups as long as the malfunction exists .
When the ma lfunction indicator is illuminated, the system may not
be able to detect or signal low tire pressure as intended. TPMS
malfunctions may occur for a variety of reasons, including the insta
llation of replacement or alternate tires or wheels on the
vehic le that prevent the TPMS from functioning properly. Always
check the TPMS malfunction tellta le after replac ing one or more
tires or whee ls on your vehicle to ensure that the replacement or
a lternate tires and wheels a llow the TPMS t o continue to funct ion
properly. •
Applies to vehicles: with tire pressur e monitoring system
Introduction
The tire pressure monitoring system monitors air pressure
in all four road wheels while the vehicle is moving.
As soon as the tire p ressure monitoring system senses a significant
loss of air pressure in one or severa l tires, text messages and ye llow
sy mbo ls appear in the instrument cluster display to alert the driver.
The warning light in the instrument cluster comes on when the
tire is significantly underinflated
=> page 13 .
Th e warning light l also i lluminates in the case of a system
malfunction.
Be aware tha t tire pressure is a lso dependent on the temperature of
the tire . For every 18 °F (1 O °C) increase in tire temperature, tire pres ­
sure increases by about 1.5 psi (0 .1 ba r). The tire warms up while the
vehic le is moving and tire pressure rises. So you should adjust tire
pressure on ly when they are
cold, when the temperature of the tires
is roughly the same as the ambient air temperature.
I n order to keep the tire pressure monitoring system properly ca li­
b rated, tire pressure on all four tires shou ld be checked a t regu lar
interva ls, adjusted if necessary, and saved in the proper setting
(reco mmended pressure) :::>
page 266.
The tire pressure is shown either on the driver's side 8 -pi llar or on
the inside of the fuel fi ller flap. _..

__________________________________________ T_i_re _ p =----r_e _s _ s_ u_ r_e _ m_ o_n_ i_ t _o _r_ i_n -=g =-- s....: y:.... s_ te_ m_ * __ _
•
& WARNING
• When the t ire pres sure monitoring sy stem warning light is l it ,
one or more of your tire s is significantly underinflated . You should
stop and che ck your tires as soon as possible , and inflate them to
the proper pres sure as ind icated on the vehicle's tire pressure
label :::::,
page 247 . Driving on a signifi cantly unde rinflated tire
causes the tire to overheat and can lead to tire failure. Underinfla­
tion also is likely to impair the vehicle's handling and stopping ability .
• Do not adju st tire pressure when tire temperature is e xcess ive.
This could lead to serious tire damage and even cause the tire to
burst , with the additional dan ger of an accident.
W For the sake of the environment
D riving with u nder inflated tires r educes fue l effi ciency and ti re
tread life.
[ i J Tip s
• Each tire, including the spare , should be checked monthly when
t he tempe rat ure of the t ires is a bout t he sa me as amb ient a ir
temperature and set to the recommended inflation pressure as
speci fied o n the ti re pre ssure label :::::,
page 247.
• The factory supplied spare whee l is equipped with a sensor for
t he ti re press ure m onit ori ng sys te m. As long as the spare w hee l is
not mounted, the t ire pressure of this tire wil l not be monitored .
• T he tire pressure mon itori ng system help s t he d river mo nitor ti re
pressures, but the driver is stil l responsible for maintaining the
c orrect tire press ure.
• T ire pressure must only be adjusted when the temperature of the
ti res is abou t th e sam e as ambie nt air te mperatu re.
• When t ires a re replaced, the sen so rs and valves shou ld not be
e xcha nged . T he va lve co re, nut, va lv e sea ling and sea l was her (replacement kit) needs to be replaced
. If necessary, the valve and
t he wheel electr onics have to be rep laced.
• I f you should put different whee ls and tires on your vehic le (e.g.
win ter w hee ls a nd tires), y ou must be certa in tha t the whee ls and
tires are compat ible with the tire pressure monitoring system .
Otherwise the sys te m will r egiste r a ma lfunc tion and a fau lt
message will be displayed . For more information, contact your
au thorized A udi dea le r.
• Adjust the tire pressure and store the pressure in the tire pres ­
su re moni tor ing sys tem to t he loa d you are carrying.
• F or Dec laration of Comp liance to United States FCC and Industry
Cana da regula tions :::::,
page 307 . •
A pplies to veh ic les : w ith tir e pressu re mon itor ing system
Significant loss of air pressure j'
Th e yellow symb ol app ear s i n the event o f a sig ni ficant
Jo ss of a ir pr es su re.
Fig . 185 Di sp lay :
yellow symbol with message
I f th e warning ligh t in the ins trumen t clu ste r com es o n
a nd t hen the s ymb ol appea rs in t he dis pla y~ fig. 1 85,
pre ssure in at least o ne tire is t oo l ow.
S to p drivi ng as soo n a s possib le wit h out e nda nge rin g
y o urs elf a nd other dr ivers on t he road. ._
Vehicle care I t •

-Tire pressure monitoring system* __ ..:.._____:__..:...::....:..:..:..-=.:..: ..:..::.-=.:..~~.:.=.:..:.::...__ ____________________ _
-Inspect all tires.
- Change the tire if necessary~ page
272.
The warning light in the instrument cluster comes on when the
tire is significantly underinflated .
In addition, the tire symbol ,_, appears in the display together with
the message
Please check tire pressure=> page 265, fig. 185.
After a few seconds, the message disappears again. If you would
like to show the message again, press the Set/Check button
=>
page 8, fig. 2 @ .
[ i ] Tips
• In the case of an intentional loss of air pressure, such as when
readjusting tire pressure, the pressure must be stored again after­
ward =>
page 266.
• Tire pressure must only be adjusted when 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 266.
• After changing a wheel or replacing a wheel with the spare tire
you have to adjust the tire pressures on all wheels. In addition, you must then initialize the new tire pressures in the tire pressure moni­
toring system =>
page 267. •
Applies to vehicles: with tire pr essu re mon itoring system
Storing tire pressures
Correct storage of specified pressure is the basic require­
ment for reliable tire pressure monitoring .
1 1 1 J
Fig. 186 Car: Tire pres­
sure monitoring
system
In order for the tire pressure monitoring system to operate
appropriately, you have to re-save the specified pressures
whenever you adjust tire pressures, such as when the load condition of your vehicle changes. Proceed as follows:
Correcting tire pressure
- Check the pressure in the tires.
- Adjust air pressure as needed to comply with the infor- mation on the label located on the label located either on
the driver's side 8 -pillar or on the inside of the fuel filler
flap .
Saving tire pressures
-Turn on the ignition.
- Press the button~ fig. 186 for approximately 5 seconds.
You will hear a beep and the symbol in the instrument
cluster flashes three times. ..,.

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•
All pressure warning indicators in the display will be canceled.
Fo llowing each intent ional change in specified pressures, tire pres­
sures must be saved again .
After the pressures are saved, the tire pressure monitoring system
measures the current tire pressures and saves them as the new
specified pressures.
[ i] Tips
• The tire pressure is shown on the tire pressure label. The tire
pressure label is located either on the driver's side B -pillar or on the
inside of the fuel filler flap. The tire pressure label lists the recom­
mended cold tire inflation pressures for the vehicle at its maximum
capacity weight and the tires that were on your vehicle at the time
it was manufactured. For recommended tire pressures for normal
load conditions, please see chapter~
page 247.
• The tire pressure monitoring system helps the driver monitor tire
pressures, but the driver is still responsible for maintaining the
correct tire pressure. •
Applies to vehicles: with tir e pressure monitor ing system
Wheel change
If a wheel is changed, the wheels that were exchanged
have to be reprogrammed.
- Turn on the ignition.
- Press the button=>
page 266, fig. 186 for approximately 5
seconds. You will hear a beep and the symbol in the
button flashes three times.
Programming is necessary:
• after the tires have been rotated on the vehicle, or the spare tire
is used, •
if tires with new wheel sensors are used.
All pressure warning indicators in the display will be canceled. The
system malfunction error message will not disappear until the
vehicle is underway. With pressing the button~
page 266, fig. 186,
the reprogramming of the new sensors and storing of actual pres­
sures starts . This learning phase can take up to 10 minutes driving
time.
During the learning process the tire pressure monitoring system is
not available. •
Applies to vehic les: with tir e pr essure monitor ing system
Malfunctions *
A malfunction can have various causes.
Fig. 187 Display:
System malfunction
If the '-warning light in the instrument cluster flashes for approxi ­
mately one minute and then remains continuously illuminated and
additionally the
~ f ig. 187 symbol appears in the display, the
tire pressure monitoring system is not available . This can have
various causes.
• If the message appears at the end of the learning process, the
system cannot recognize the wheels installed on the vehicle . This
can be because one or more wheels without a wheel sensor were
installed. .,,_
Vehicle care I t •

___ T _i_r e_=- p_r_e _ s_ s_ u_r_ e _ m_ o_ n_i_t _o _r_ i _ n .,;:g ::;.._ s_ y=--- s_t _e _m_ * __________________________________________ _
• A wheel sensor or other component may have failed.
• During ini tializat ion the system has detected more tha n 4 wheels
on the vehicle, for example whi le driving next to another car with a
tire pressure monitoring system.
• A wheel change was made but the button
:=:, page 266, fig. 186
was not pressed.
• Audi Genuine Parts were not used for parts replacement .
• If snow chains are being used, system function can be compro­
mised due to the shielding properties of the chains.
• The tire pressure monitoring system may not be avai lable
because of a radio malfunction.
• Transmitters with the same frequency, such as radio head­
phones in the vehic le or radio equipment, can cause a temporary
disruption of the system through excessive electromagnetic fields .
• Eliminate the interference if possible and then proceed as
follows: Turn off the engine for 20 minutes. Then drive another 10
min. If the warning light comes on again, you shou ld con tact your
authorized Audi dealer immediately to have the prob lem corrected.
• Do not use commercially avai lab le tire sea lants . Otherwise, the
e lectrica l components of the tire pressure monitoring system wi ll
no longer work properly and the sensor for the tire p ressure moni ­
toring system wil l have to be rep laced by an authorized Audi dealer
or o ther qua lified workshop .•
Certification
This device complies with part 15 of the FCC rules and RSS -210.
Operation is subject to the following conditions:
• this device may not cause harmful interference, and
• this device must accept interference rece ived, including interfer ­
ence that may cause undesired operation.
The receiver 5WK49069 uses the same schematic, assemb ly, layout
and PCB as 5WK49097 . 5WK49097 is a multi channel receiver and 5WK49069 is a single channe
l receiver . They only differ in : SAW­
Filter V1 _4 was changed from A2C00038979 to V1 _2 A2C00032378,
Inductor L5_3 and L6_233nH were changed to L5 _2 and L6 _247nH .
BAND PASS FILTER V3_2 was changed from A2C00038762 to V3_3
A2C00036085. V10 : ATIC75 C1, A2C000029505 was changed to V10 :
ATIC75 C2-Light, A2C000043220 . Q1 14.246MHz A2C00037710 was
changed to Q1 15.27MHz A2C00041280 . The BAND PASS FI LTER V2
is not populated .
These modifica tions were necessary to optimize the characteris tic
of the receiver.
Proof is shown with test report T30739 -00 -00KJ issued by Mikes ­
Testingpartners GmbH, Ohmstral5e 2-4 , 94342 Strasski rchen that
the receiver is be low the limit .•

What do I do now? -__________________ __;__:....:....:..:: __ _
•
-All passengers should leave the car and move to a safe
location (for instance, behind the guardrail)~& .
- Apply the
parking brake firmly ~& .
- Move
selector lever to position Pon an automatic trans-
miss ion; put manual transmission in
first gear ~& .
-If you are towing a trailer : unhitch the trailer from your
vehicle.
- Take the
tool and the spare tire~ page 270 out of the
luggage compartment.
& WARNING
You or your passengers could be injured while changing a wheel if
you do not follow these safety precautions:
• If you have a flat tire, move a safe distance off the road. Turn off
the engine, turn the emergency flasher on and use other warning
devices to alert other motorists.
• Make sure that passengers wait
in a safe place away from the
vehicle and well away from the roadway and traffic.
• To help prevent the vehicle from moving suddenly and possibly
slipping off the jack, always fully set the parking brake and block
the wheel diagonally opposite the wheel being changed. When one
front wheel is lifted off the ground, placing the automatic trans­
mission in "P" (Park), or engaging a gear in a manual transmission
will
not prevent the vehicle from moving.
• Before you change a wheel, be sure the ground is level and firm.
If necessary, use a sturdy board under the jack.
• After installing the spare wheel, make sure that you remount
the flat tire/wheel in its storage area properly and tighten the
knurled retaining screw securely. •
Changing a wheel
When you change a wheel, follow the sequence described
below step-by-step and exactly in that order.
1. Remove the decorative wheel cover*. For more details
see also
~ page 274, "Decorative wheel covers" or
~ page 275, "Wheels with cap-covered wheel bolts".
2. Loosen the
wheel bolts ~ page 276.
3. Locate the proper mounting point for the jack and align the jack below that point~
page 276.
4. Lift the car with the jack~ page 276.
5. Take the flat wheel off and then put the spare on
~ page 278.
6. Tighten all wheel bolts lightly .
7.
Lower the vehicle with the jack .
8. Use the wheel bolt wrench and
firmly tighten all wheel
bolts
~ page 276.
9. Put the decorative wheel cover* back on.
& WARNING
Always read and head all WARNINGS and information ::} & in
"Raising the vehicle" on
page 276 and ~ page 279. •
After changing a wheel
A wheel change is not complete without the following
actions.
- Store and secure the replaced wheel in the spare wheel
well. .,._
Do-it-yourself service