2010 AUDI S3 ignition

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Fuel supply and filling your fuel tank
Gasoline
Fuel supply
Using the right fuel helps keep the environment clean and
prevents engine damage.
Fuel r ecomm end ati on
The fuel recommended for your vehic le is unl eade d prem ium grade
gaso line . See also ~
page 296, "Data". Audi recommends using TOP
T IER Detergent Gasoline with a minimum octane rating of 91 AKI (95
RON). For more information on TOP TIER Detergent Gaso line, please
go to the official website (www.toptiergas .com).
The recommended gasoline octane rating for your engine can also be found on a label located on the inside of the fuel fille r flap. This
rating may be specified as AK I or RON .
Your vehic le may also be operated us ing unleaded regular gasoline
with a minimum octane rating of 87 AKl/91 RON . However, using 87
AKl/9 1 RON octane fuel will slightly reduce engine performance.
Use unle ad ed ga so line only . Unleaded gaso line is avai lable
throughout the USA, Canada, and in most European countries. We
recommend that you do not take your vehicle to areas or countr ies
where un leaded gasoline may not be available .
For more information on refueling your vehicle, see~
page 219 .
Octane ra tin g
Octane rating indicates a gaso line's ability to resist engine
damaging "knock" caused by premature ignition and detonation.
Therefore, buying the correct grade of gaso line is very important to
help prevent possible engine damage and a loss of engine perfor ­
mance. Gasoline most common
ly used in the United States and Canada has
the following octane ratings that can usua lly be found on the filler
pump:
• Premium Grade : 91 -96 AKI
• Regular Grade: 87 -90 AKI
Explanation of the abbreviations:
AKI = Anti Knock Index= (R +M)/2 = (RON +MON)/2
RON = Research Octane Number
MON = M otor Octane Number .
0 Note
• Do not use any fue l with octane ratings lower than 87 AKI or 91
RON otherwise expensive engine damage will occur .
• Do
not use leaded gasoline! The use of leaded gasoline will
severe ly damage your vehicle's catalytic converter and its abi lity to
control exhaust emissions. •
Blended gasoline
Use of g aso line containing alco hol or M TB E ( meth yl
t er tiary butyl e ther )
You may use unleaded gasoline blended with alcohol or MTBE
(commonly referred to as oxygenates) if the blended mixture meets
the follow ing criteria:
Bl end of g asoline m eth anol (wood al coho l or methyl alc oh ol)
• Anti-knock index must be 87 AKI or higher .
• Blend must contain no more than 3% methanol.
• Blend must contain more than 2% co-solvents.
Vehicle care I t •

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Closing the engine hood
- Pull the hood down until the pressure from the strut is
reduced.
- Let the hood
drop down and latch in place. Do not try to
push it shut;
it may fail to engage~& .
& WARNING
A hood that is not completely latched could fly up and block your
view while driving.
• When you close the engine hood, check it to make sure the
safety catch has properly engaged. The hood should be flush with
the surrounding vehicle body parts.
• If you notice while driving that the hood is not secured prop­
erly, stop at once and close it. •
Working in the engine compartment
Be especially careful whenever you work in the engine
compartment!
Whenever you must perform any work in the engine compartment,
for example checking and filling different fluids, there is a risk of injury, burns and accidents. To prevent personal injury always
observe the following WARNINGS. The engine compartment of any
vehicle is a hazardous area!
=> &
& WARNING
To help avoid injury, before you check anything under the hood :
• Turn off the engine.
• Remove the ignition key.
• Set the parking brake fully .
& WARNING (continued)
• Move selector lever of automatic transmission to "P" {Park);
put manual transmission in Neutral.
• Always let the engine cool down. Hot components will burn
skin on contact.
• To reduce the risk of being burned, never open the hood if you
see or hear steam or coolant escaping from the engine compart­
ment. Wait until no steam or coolant can be seen or heard before
carefully opening the hood .
• Keep children away from the engine compartment.
• Never spill fluids on hot engine components. They can cause a
fire.
• Never touch the radiator fan. The auxiliary electric fan is
temperature controlled and can switch on suddenly.
• Never open the coolant reservoir cap when the engine is still
warm. The coolant system is pressurized and hot coolant could
spray out!
• Protect your face, hands and arm from steam or hot engine
coolant by placing a thick rag over the cap when you open the
coolant reservoir.
• If work on the fuel system or the electrical system is necessary:
- Always disconnect the battery .
- Never smoke or work near heaters or open flames. Fluids in
the engine compartment could start a fire.
- Keep an approved fire extinguisher immediately available.
• To avoid electrical shock and personal injury while the engine
is running or being started, never touch :
- Ignition cables
- Other components of the high voltage electronic ignition
system.
• If you must perform a check or repair with the engine running: .,_

Checking and filling -
---------------------=----"=---------
0 Note
• Before winter sets in, have the coolant checked to see if the
coolant additive in your vehicle is sufficient to meet the climate
conditions. This is especially important if you live in a region where
the winter is extremely cold. If necessary, increase the proportion of
coolant additive to 60%.
• When adding coolant additive to your cooling system,
remember:
-We recommend using only coolant additive G12+ + (check the
label) for your vehicle. This coolant additive is available at autho­
rized Audi dealers. Other types of antifreeze can significantly
reduce corrosion protection . The resulting corrosion can cause a
loss of coolant and serious engine damage .
• Do not add any type of radiator leak sealant to your vehicle's
engine coolant. Adding radiator repair fluid may adversely affect the
function and performance of your cooling system and cou ld result
in damage not covered by your New Vehicle Limited Warranty .•
Checking the engine coolant level
The engine coolant level can be checked with a quick
glance.
Fig . 169 Engine
compartment : coolant
expansion tank
Before you check anything in the engine compartment,
always read and heed all WARNINGS==> & in "Working in
the engine compartment" on
page 224.
Turn off the ignition .
Read the engine coolant level from the coolant expan­
sion tank==> fig. 169. With a cold engine, the coolant level
should be between the "min" and "max" markings. When
the engine is warm, the level may be slightly above the
" max" marking .
The location of the coolant expansion tank can be seen in the
engine compartment illustration=>
page 225.
To obtain an accurate reading, the engine must be switched off .
The expansion tank in your vehicle is equipped with an electric
coolant level sensor.
When the coolant level is too low, the warning light in the Auto­
Check System =>
page 30will blink until you add coolant and the
level has been restored to normal. Even though there is an electric
coolant level sensor, we still recommend you check the coolant level
from time to time.
Coolant loss
Coolant loss may indicate a leak in the cooling system. In the event
of coolant loss, the cooling system should be inspected immedi­
ately by your authorized Audi dealer. It is not enough merely to add
coolant.
In a
sealed system, losses can occur only if the boiling point of the
coolant is exceeded as a result of overheating.
0 Note
Do not add any type of radiator leak sea lant to your vehicle's engine
coolant. Adding radiator repair fluid may adversely affect the tune- _..
Vehicle care I I Technical data

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Di sco nnecting the batt ery
Some vehic le functions (power window regulators, for example) are
lost if the battery termina ls are disconnected. These functions have
to be relearned after the battery terminals are connected again . To
prevent this, the battery should only be disconnected from the
vehicle el ectrical system if absolutely necessary.
Vehic les not driven f or lo ng peri o ds a nd sho rt -di stan ce
o pera tion
The battery can a lso become discharged with the veh ic le stationary
by id ling current consumers . When the vehic le is sta tionary
(planned event) during the
cold t ime of the year, you should remove
the battery and store it in a nonfreezing area . This way you prevent
that the battery "freezes" and thereby is destroyed . During the
w arm er time of the year it is sufficient to disconnect the negative
terminal from the battery . Occasionally charge even a disconnected
battery .
Wint er opera ti on
During the winter months, battery capacity tends to decrease as
tempera tures drop . This is because more power is a lso consumed
while starting, and the headlights, rear window defogger, etc., are
used more often .
Avoid unnecessary power consumption, particularly in city traffic or
when trave ling only short distances. Let your authorized Audi dea ler
check the capacity of the vehicle battery before w inter sets in
=>
page 239. A well charged battery will not only prevent starting
problems when the weather is cold, but w ill also last longer.
Replacin g battery
The new battery m ust h ave the same capacity , voltage (12 volts),
amperage, construction and p lug sea ling, as the orig inal battery.
Specif ications are listed on the battery housing. Batteries special ly
developed by Audi fulfil l the maintenance, output, and safety
requirements.
When instal ling the battery, make sure the ignition and all electrica l
consumers are switched off=>
(D.
We recommend that you use maintenance -free or c y c le -resis­
tant /leak -proof
batte ries according to the sta ndards TL 825 06 (from
December 1997) and VW 7 50 73 (from August 2001).
(D Note
• All work on the battery requires technical knowledge . Please
contact an Audi dealership or another authorized fac ility for ques ­
tions about the battery- danger of acid burns and exp losion hazard!
• The battery must not be opened! Do not try to change the
battery's liquid level, otherwise detonating gas wil l escape from the
bat tery -explosion hazard!
• The AGM battery in the luggage compartment cannot leak,
because the electrolyte for this battery is abso rbed in to a special
glass mat . This leak-proof battery must not be replace with a
conventiona l battery.
• Make sure the ventilation hose on the side of the battery is
connected, otherwise fumes or battery acid can leak out.
• Battery holder and terminals always have to be secured correctly .
• Before all work on the ba ttery follow the
warning s below=> & in
"Working on the battery" on
page 238.
Because of the problem of proper disposal of a battery, we recom­
mend your authorized Audi deale r change the battery for you .
Batteries contain sulfuric acid and lead and must always be
disposed of properly in comp liance with a ll environmental regula ­
tions . D isposing of vehicle batteries improperly is very dangerous to
the environment. Make sure that the removed batte ry cannot over ­
balance , otherwise sulfuric acid might escape! •
Vehicle care I t •

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Working on the battery
All work on the ba ttery requires technical knowledge! Be
espe cially careful whe n work ing on or near the ba ttery!
B efor e you ch eck any thing in t he e ngin e compa rtment ,
a lway s read and heed all WARNINGS~
& in "Work ing i n
the engin e compartme nt" on
page 224 .
Alway s heed th e safety warnings , when w orki ng on th e ve hi cle
b atte ry o r the veh icle e lectr ica l system to preve nt in jury.
The following WARNINGS are very important when
working on the battery:
Always heed the following WARNING SYMBOLS and safety pre ­
cautions when working on the battery.
@
®
Always wear eye protection.
Battery acid contains sulfuric acid. Always wear
gloves and eye protection .
No
· sparks
- flames
- smoking.
When a battery is charged , it produces hydrogen
gas which is explosive and could cause personal
injury .
Always keep the battery well out of reach of chil­
dren.
& WARNING
Whenever working on the battery or on the electrical system,
there is the risk of injury , accident and even fire. Read and heed the
following WARNINGS :
& WARNING (continued)
• Always wear eye protection. Do not let battery acid or any lead
particles get on your skin or clothing. Shield your eyes . Explosive
gases can cause blindness or other injury!
• Battery acid contains sulfuric acid . Sulfuric acid can cause
blindness and severe burns.
-Always wear gloves and eye protection . Do not tilt the
battery because acid could leak out of the ventilation openings.
- If you get battery acid in your eyes or on your skin, immedi ­
ately rinse with cold water for several minutes and get medical
attention .
- If you should ingest any battery acid , seek medical attention
immediately .
• Do not expose the battery to an open flame , electric sparks or
an open light .
• Do not smoke.
• Do not interchange the positive and negative cables .
• When working on the battery , be sure not to short -circuit the
terminals with tools or other metal objects. This would cause the battery to heat up very quickly , which could lead to damage or
explosion and personal injury .
• When a battery is charged, it produces hydrogen gas which is
explosive and could cause personal injury.
• Always keep the battery well out of the reach of children .
• Before work is done on the electrical system , disconnect the
negative ground cable .
• Before performing any work on the electrical system , switch off
the engine and ignition as well as any electrical equipment. The
negative cable on the battery must be disconnected . If you are just
going to replace a light bulb , then it is enough to switch off the
lights.
• Before disconnecting the battery, switch off the anti-theft
alarm system! Otherwise you will set off the alarm.

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If the ( 'warn ing l ight in the instrument cluster comes on
and then the symbol appears in the display ==> page
264,
fig. 178, pressure in at least one tire is too low .
- Stop driving as soon as possible w ithout endangering
yourself and other drivers on the road .
- Inspect all tires.
Change the tire if necessary==> page
270.
The _ warning light in the instrument cluster comes on when the
tire is significant ly underinf lated .
In addition, the tire symbol
I appears in the display together with
the message
Pl ease chec k tir e pre ssure=> page 264, fig. 178.
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 ] Tip s
• In the case of an intentiona l loss of air pressure, such as when
readjusting tire pressure, the pressure must be stored again after ­
ward =>
page 265.
• Tire pressure must only be adjusted when the temperature of the
tires is about the same as ambient air temperature.
• The ye llow symbol disappears when the tire pressure is
corrected and the new pressure is stored in the system=>
page 265.
• After changing a wheel or rep lacing 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 266. •
App lies to veh icles : wi th tir e pr ess ure mon it o ring sys tem
Storing tire pressures
Correct storage of specified pressure is the basic require­
ment for reliable tire pressure monitoring.
I, _]
) )
1 '
Fi g. 179 Ca r: Tir e pres­
s u re mon it o ring
system
In o rder for the tire pressure monitoring system to ope rate
appr opria tely, you have to re-save the specified pressures
whenever you adjust tire pressures, such as when the load
condition of yo ur veh ic le changes . Proceed as follows :
Corr ec ting tir e pressure
- Check the pressure in t he tires .
- Adjust air pressure as needed to comp ly with t he 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 pressur es
- Turn on the ignition .
- Press the button==> fig. 179 for approx imately 5 seconds .
You will hear a beep and the symbol in t he instrume nt
cluster flashes three t imes . ..,.
Vehicle care I I irechnical data

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Fuses and bulbs
Fuses
Replacing a fuse
A problem in the electrical system may be caused by a
blown fuse.
Fig . 192 End face of
instrument panel:
removing cover plate
to access fuses
Fig .
193 Left side of
engine compartment :
fuse cover
Fuse cover on the left end face of the instrument
panel
- Switch off the ignition and the electrical component
affected. - Carefully pry the fuse cover off the instrument panel
using the ignition key or a screwdriver~ fig. 192.
- Check the fuse listing on the next pages to find out which
fuse belongs to the component which has failed
~ page 279, "Fuse Locatio n, Instrume nt Panel left".
- Remove the blown fuse with the plastic clip provided.
The clip is located on the holder in the fuse box.
- Replace a blown fuse (recognizable by the melted metal
strip inside) w ith a fuse of the same amperage .
- Firmly snap the cover back onto the instrument panel
face.
Fuse cover in engine compartment
- Switch the ignition and the affected consumer off.
- Unlatch the fuse cover, push the two slides forward
~ fig. 193.
- Find out which fuse belongs to the equipment which
stopped working~ page 281, "Fuse location, left side of
engine compartment".
- Remove the plastic from its reta iner in the fuse box cover
(left face end of the instrument panel), place it on the
fuse in question and pull it out.
- If the fuse is burned out (recognizable by melted strips of
metal), replace it with a new fuse of the same rating.
- Replace the fuse cover.
- Push the two slides to the rear~ fig. 193. Install the fuse
cover carefully to prevent water from entering.
~

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No. UEquipment Amps I No. Equipment
Amps
F6 Steering wheel electronics
5 F28
Not used
F7 Not used F29 Fuse assignment in the
left-side instrument
50
F8 Not used panel (special equipment)
F9 Not used F30 Power supply relay terminal
15 50
F10 Engine control module, main relay 5/10
Variation
(2) with 54 Plug-in Fuses
F11 Not used No. Equipment Amps
F12 Control module for CAN data
transfer (gateway)
5
Body control module (right)
F1 30
F13 Engine control module 15/25/30
20/30
F2 ESP valves, Anti-lock brake system (ABS) valves
F14 Ignition coils, engine components (diesel
20 F3 Terminal 30 40
engine)
Preheating control module/engine component, F4
Battery voltage
5
F15 tank diagnosis, oxygen sensor 5/10
F5 Horn 15
F16 Body control module (right)
30 F6 Not used
F17 Horn 15
F7 Not used
Audio amplifier 30 F8 Not used
F19 Front windshield wiper system 30
F9 Engine components 10
F20 Water pump, volume regulator valve 10/20
F10 Fuel tank control, mass air flow sensor
10
F21 Oxygen sensor, vacuum pump 10/15
F11 Oxygen sensors, in front of catalytic converter 10
F22 Clutch pedal switch, brake light switch 5
F12 Oxygen sensors, behind catalytic converter 10
F23 engine components, water pump 5/10/15
F13 Automatic transmission 15
Engine components, water pump 10 F14 Not used
F25 Pump (ESP/ABS), ABS valve
40
F15 Water pump 10
F26 Body control module (left) 30
F16 Volume control valve 20
F27 Secondary air pump, preheating control module 40 F17 Steering wheel electronics 5
F18 Audio amplifier 30
F19 Not used