2009 AUDI S3 cooling

___ T_ r _a_ il_e _r_ t_ o_ vv_ in__... g,_ __________________________________________________ _
Trailer towing
Driving with a trailer
General information
Your Audi was designed primarily for passenger transpor­
tation.
If you plan to tow a trailer, please remember that the additional load
wi ll affect durability, economy and performance.
Trai ler towing not on ly p laces more stress on the vehicle, it a lso ca lls
for more concentration from the driver.
For this reasons, always fo llow the operating and driving instruc ­
tions provided and use common sense. •
Technical requirements
Traile r hit ch
Use a weight -carrying hitch conforming to the gross trailer weight.
The hitch must be suitab le for your vehicle and tra iler and must be
mounted secure ly on the vehicle's chassis at a
technically sound
location . Use only a trailer hitch w ith removable ball mount. A lways
check with the trai ler hitch manufacturer to make sure that you are
using the correct hitch .
Do not use a bumper hit ch .
The hitch must be installed in such a way that it does not interfere
w ith the impact-absorbing bumper system . No modifications
should be made to the vehicle exhaust and brake systems. From
time to time, check that all hitch mount ing bolts remain securely
fastened.
When you are not towing a trailer, remove the trailer hitch ball
mount. This prevents the hitch from causing damage should your
vehic le be struck from behind
=:> & .
Tire pre ssure
When towing a trailer, inflate the tires of your vehic le to the cold tire
pressure listed under "Full load"on the sticker on the right door­
jamb. Inflate trai ler tires to trai ler and tire manufacturers' specifica ­
tions.
Lights
The head ligh t settings should be checked wit h the trai ler attached
before driving off. Have the head lights adjusted as necessary so
t hat you can see the road ahead but not blind oncoming traffic.
Check to make sure both vehicle and trailer lights are working prop ­
erly.
Engin e cool ing sy stem
Towing a t rai ler makes the engine wo rk ha rder . It is important that
the cooling system's performance stands up to the additiona l
strain. Make sure that the coo ling syste m has enoug h fluid.
Traile r br akes
If your traile r is equipped wi th a braking system, check to be sure
that it conforms to al l regu lations.
T he trailer hydraulic brake system must not be directly connected to
the vehic le's hydrau lic brake sys tem.
Safety chai ns
Be sure trailer safety chains are properly connected from the trailer
to the h itch on the vehicle. Leave enough slack in the chains to
permit turning corners. When you install safety chains, make sure
they will not drag on the road when you are driving.
The chains should cross under the trailer tongue to prevent it from
dropping in case of separation from the hitch. _.

-Checking and filling
P'N:1--------=-------------------
& WARNING
To reduce the ri sk of personal inju ry if you mu st change the engine
oil in your vehicle your self:
• Wear eye prote ction .
• To reduce the ri sk of bu rn s from hot engine oil , let the engine
c ool down to the tou ch .
• When remo ving th e oil dr ain pl ug w ith your fing ers, s tay a s fa r
a w ay as po ssibl e. Alw ays keep your forearm p arallel to the grou nd
to help prevent hot oil from running down your arm .
• Drai n the oil into a container de signed for th is purpose , one
l a rg e enough to hold at le ast the tot al a mount of oil in your eng ine .
• Engine oil is poi sonou s. Keep it well out of the rea ch of children .
• Continuous contact with used engine oil i s harmful to your
skin. Always prote ct your skin by wa shin g oil off thoroughly with
s oap and water .
0 Note
Never mix oil additives with your engine oil. These additives can
damage your engine and adversely affect your Audi New Vehicle Limited Warranty .
~ For the sake of the environment
• Before changing your oil, first make sure you know where you
can proper ly dispose of the used oil.
• Always dispose of used engine oil properly . Do not dump it on
garden soil, wooded areas, into open st reams or down sewage
drains .
• Recycle used engine oi l by taking it to a used engine oi l collec ­
tion facility in your area, or contact a service station .•
Engine cooling system
Coolant
The engine coolan t perf orms two func tions: it keeps the
engine from overheating an d it protects the engine from
freezing in the winter.
The cooling system is sealed and general ly requires litt le attention.
The coo ling system has been fi lled at the factory with a permanent
coo lant which does not need to be changed. The coolant consists of
a mixture of water and the manufacturer's glycol -basedcoolant
additive G12+ + antifreeze with anti corrosion additives (50% for USA
models; 60% for Canadian mode ls) . This mixture both assures the
necessary frost protection and protects metal components in the
engine's cooling system from corrosion and scaling. It also raises
the boil ing point o f the coolant.
D o not reduce the concentration of the coo lant in the summer by
adding pla in water.
Th e proporti on of coolant additive must b e at
l e as t 50 % but not more than 60 %
to maintain antifreeze protection
and cooling efficiency . If the coolant frost protect ion is too low, the
coo lant could freeze and damage the vehicle heating and engine
coo ling system.
For year-round driving, antifreeze is added at the factory for temper ­
atures down to :
• -31 °F ( -35 °C) USA
• - 40 °F ( - 40 °C) Canada .
You can mix the G12 ++ coolan t additive with other additives G12 + or
G12. Always check with your authorized Audi dealer.
& WARNING
Bef ore you che ck anything in the engine compartment , alwa ys
read and heed all WARNING S
~ & in "Working in the engine
c ompartment " on
page 225.

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 could 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 . 175 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 225.
Turn off the ignition.
Read the engine coolant level from the coolant expan­
sion tank==> fig. 175. 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 226.
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 sealant to your vehicle's engine
coolant. Adding radiator repair fluid may adversely affect the tune- _..
Vehicle care I I Technical data

-~_C_ h_e _c _ k_ i_n ...:::g::;...._ a_n_ d_ f_ i_ll _in -'g:::;.._ ___________________________________________ _
tion and performance of your cooling system and could resu lt in
d am age not co vered by yo ur Ne w Vehicle Li mited Warranty .•
Adding coolant
B e very caref ul whe n addin g engine c oo lant.
Before you check a nything in the e ngine compartmen t,
always read and heed all WARNINGS=> & in "Work ing in
the en gine compartmen t" on
pa ge 225.
- Turn off the engine.
- Le t the engin e coo l down.
Place a thi ck ra g o ver th e c oolan t expansio n ta nk
=> pa ge 233, fi g. 1 75 a nd carefully twi st th e cap coun te r­
cl ockwi se
=> &.
- Add cool ant.
- Twist the cap on aga in
tightly.
Replacement engine coolant must conform to exact specifications
~ page 232, "Coola nt". Even in a n eme rge ncy, if co olant add itive
G 12++. G12+ or G 12 is not availab le, do
not use a diffe rent additive.
Use plain water instead unt il you ca n get the c orrect additive and
can restore the correct ratio . This should be done as soon as
possible.
If you have lost a considerable amount of coo lant, then you should
add co ld antifreeze and cold water only when the engine is cold.
A lways use
new e n gin e c oolan t wh en refi llin g.
Do not fi ll coo lant above the "MAX" mark. Excess coolant will be
f o rced ou t through the pressure re lief va lve in the cap when the
engine becomes hot.
& WARNING
• The cooling system is under pressure and can get very hot .
Redu ce the risk of scalding from hot coolant by following these
steps .
- Turn off the engine and allow it to cool down.
- Protect your face , hands and arms from e scaping fluid and
steam by covering the cap with a large, thick rag.
- Turn the cap slowly and very carefully in a counter -clockwise
direction while applying light , downward pressure on the top
of the cap.
- To avoid being burned , do not spill antifreeze or coolant on
the e xhaust system o r hot engine parts . Under certain condi ­
tions , the ethylene glycol in engine coolant can catch fire.
• Antifreeze is poisonous . Always store antifreeze in its original
container and well out of the rea ch of children.
• If you drain the coolant , it must be caught and safely stored in
a proper container clearly marked "poison".
0 Note
• Coo la n t po llutes t he environ ment and cou ld cause a n engine
fire . Excess coolant will be forced out through the pressure re lief
va lve in t he cap when t he eng in e b ecomes hot .
• I f, in an emergency, on ly water can be added, the correct ratio
be tween wa ter and antifree ze~
page 232 mus t be restore d as soon
as possib le .
'£> For the sake of the environment
D rained coolant should not be reused. Always d ispose of used
coo la nt whi le observing all e nvi ro n men tal reg ulat ions .•

Alphab eti ca l ind ex -
-------------=----
Convenience close/open feature
Windows . .... .... .... ... ... ..... . 47
Convertible child safety seats
How do I properly install a convertible
ch ild seat in my vehicle? . ...... .. 175
Safety instructions .. ... .... ... .. . 175
Convertible locking retrac tor
Activating ... ... ... .. ... ... .. .... 181
Deactivating .. .... .... ... ... ..... 182
Using to secure a child safety seat 179, 181
Coolant system . .... .... .... .... ... . 232
Cooling System Expansion tank ... ................ 233
Cornering light .... .... .... .... .... .. 55
Cruise contro l ...................... 113
Changing speed .................. 114
Presetting your speed ... .... .... .. 114
Swi tching off .. ...... .... ... .... . 114
Swi tch ing on .. ...... .... ....... . 113
Warning/indicator lights . ... .. .... .. 14
Cup holder .......................... 92
Cup holders front ......... ...... ...... ..... .. 91
Current fuel mileage .... .... ... .. .. .. . 22
D
Damping
See Audi magnetic ride .. .... .. .... 115
Data .. .... ... ... .. .... .... ... .... . 300
Data recorder ....................... 190
Date display ... .. ... ... .... ... .... .... 9
Controls and equip­
ment Safety first
Daytime running lights
.. ... .... .... .. . 54 Driver information system
Daytime running lights (Canada) .. .. ... . 55 Gearshift indicator
..... .. .... .... .. 19
Dec laration of compliance Menu button ..
........ .... ...... .. 25
Ce ll phone package ............... 307 Open door or front lid warning .
.... . 18
Electronic immobilizer ............ 307 Outside temperature display
.... .... 18
Home link® universal remote control 307 Red symbols
...... .... .. . .. .. .... . 28
Remote control key ...... .. .. .... . 307 Setting
... .... .... .... ... .... ..... 26
Tire pressure monit oring system . ... 307 Sound system disp
lay ........ ... .. . 18
Dec laration of conform ity ... .... .... . 268 Trip compu
ter ... .. .... ... .... .... . 22
def yellow symbols .
...... .... .... ..... 29
What does this mean when it appears in Dr
iver seat
t he trip odometer d isplay? .. ...... . 10
See Seating position ... ... .... .... 128
Defective light bulb warning . .......... 33 Driving safely
....................... 126
Defogg ing the windows ... .. .... .... . 10 1 Dup
lica te key . ...... .... ... .... .... .. 35
D efrosting the windows .. ... ..... ... . 101
Defrosting/defogging windows .... .... 104
E
Determining correct load limit . ...... . 252
Elapsed time .. ...... .... ... .... .... . 22
Digita l clock ..... .. .... .... .... ...... . 9
Setting the time ............. ... .. .. 9
Digita l compass . .... ... .... .... .... .. 72 Electrically heated front seats
......... 105
Electro -mechanical power assist . ... 16, 195
Electronic differential lock
Dimensions . ..... ... .... .... .... ... 299
Warning/indica tor lights .... .... .... 16
Dipstick Electronic differential lock (EDU
Reading the dipstick properly ..... . 229
How the system works .... .... .... 191
Direct Shift Gearbox
Emergency release ... .... .... .... 1 23
Distance . .... ... ...... ...... .... .... 23 Elect
ronic immobilizer . ...... .... .. 10, 37
Electro nic power contr ol
EPC warning/indicator light ... .... .. 13
Doors, power locks .. ... .... ..... ... .. 40
Electronic speed limiter ............... 21
Driver information ...... .. .... .... ... . 29
Driver Information System
Menu display . ...... .. .... ..... .. . 23 Electronic Stability Program
...... ... . 190
Electron ic stabil ization program (ESP)
Warning/ind icator lights .... .... .... 13
Emergency flasher Warning/indicator lights .... ...... .. 14
Vehicle operation Vehicle care Do-it-yourself service Technical data

-Al
phab eti ca l ind ex
_.:_.__ ____ _...::.:...::..;.:___ ________________ _
Emergency flashers . . . . . . . . . . . . . . . . . . 58
Eme rgency operation
panoramic sliding sunroof . .... ..... 49
Rear lid . .... ... .. .... .... ...... .. 43
Emergency release for selector lever . . . 123
Emergency starting . . . . . . . . . . . . . . . . . 287
Emergency towing . . . . . . . . . . . . . . . . . . 292
Engine 4-cylinder (200 hp) ..... ... .... ... 226
6 -cylinder (250 hp) ............... 227
Coolant .......... .... ....... .... 232
Hood .... ... .. ...... .... ... .... . 224
Starting .... .... .... .... .... 108, 109
Starting with jumper cables ...... . 287
Stopping ... .... .... .... ........ 109
E . ngine compartment . .... .... .... .. .
Safety instructions ...... .... .... .
226
225
Working in the engine compar tment 225
Engine coolant system .............. 232
Adding coolant .... .... .......... 234
Checking coolant level .... .... .... 233
Checking the engine coolant leve l .. 233
Radiator fan . . . . . . . . . . . . . . . . . . . . . 235
Engine coolant temperature
Gauge .............. .............. 9
Engine cooling system
Malfunction ...... .... ....... .... . 30
E . d ngine ata ...... .... ........... .. . 300
Engine hood Closing ......................... 225
Release lever . ............... .... 224
R I . d . e easing an opening .... ... ... .. 224 Engine
oil .... ...... ........ ... .... . 227
Adding ...... ... .. .... .... ...... 230
Additives ....................... 230
Changing .. ............. ........ 231
Check ing the engine oil level .... ... 229
Indications and conditions requiring extra checking .......... ...... ...... 229
Oil consumption ................. 229
Oil grades . .... ...... ... .. .... ... 227
Recommended oil check intervals .. 229
Specification and viscosity ........ 227
Engine oil level ... ..... .. ...... ...... 32
Engine oil pressure (malfunction) ... .. . 31
Engine oil sensor defective ............ 32
Engine speed limitation .. .... .... .... . 32
Environment
B k. . d
rea -in peno .... .... .... .... . . 197
Catalytic converter . . . . . . . . . . . . . . . 198
Disposing of your vehic le battery ... 237
Driving at high speeds . . . . . . . . . . . . 199
Driving to minimize pollution and noise .
199
Fuel ............................ 221
Fuel economy . . . . . . . . . . . . . . . . . . . 199
Leaks under your vehicle . .... ..... 225
Letting the vehicle stand and warm up ..
200
Proper disposal of drained brake fluid
236
Proper disposa l of
di ra ined engine
coo lant .. .... ... .... .... .... ... 234
Proper disposa l of drained engine oil
230,231
Recycling used engine oil .. .... ... 230 Unleaded fuel
...... ... .. ... .... . 219
What should I do with an old battery?
237
EPC
See Electronic power control . . . . . . . . 13
ESP
See Electronic Stability Program .... 190
Event Data Recorder (EDR) ... .... .... . 190
Expans ion tank 233
F
Fahrenheit
Switching between Fahrenheit and Centigrade . .... .. ... ... .... .... 103
Fan Adjusting the fan speed .. .... .. .. . 103
Cl imate controls ...... ...... .... . 103
Radiator .... .... .... ... .. .... .. . 235
Fastening eyes ... ........ .... .... ... 84
Flat tire Changing ....................... 272
Floor mats . ....... ..... ... .... .... . 132
Fog lights, front ...... .... ... ... ... .. 56
Folding master key with remote control . 35
Foot pedals . ... .. .... .... ...... .... 132
For the sake of the environment
Gasoline fumes and the environment 221
Letting your engine warm up . ..... . 109
Reducing engine noise by upshifting
early ... .. .... .... ... .... .... .. 8, 9
Refueling .. ........... ........ .. 221