cooling AUDI S3 2010 User Guide

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& WARNING
Fa ilure to use eng ine o il for your die sel eng ine th at ex pre ssly
c onform s to Audi oil specification VW 50 7 00 can cau se engine
f a ilure on the high way that can ca us e a cra sh and seriou s per sona l
injury.
• N ever u se any a mount of eng ine o il in the die sel eng ine th at
does not conform to Audi oil spec ification VW 507 0 0.
• Alwa ys carry with you an e xtra q uart lliter l of eng in e oil that
c onform s to Audi oil spe cification VW 507 00 in case you mu st top
o ff the oi l while on the road .
& WARNING
Improperly stored item s ca n be come air borne mi ssiles , fl ying
through the veh icl e cau sing serious per sonal injury in t he event of
h ard br aking or an acc ident . To help r educe the risk of ser ious
personal in jury :
• Alw ays s tore e xtr a qu art lliter ) of eng ine o il for your diesel
engine in its original oil container that is securely clo sed in the
lugg age comp artment . M ak e sur e the cont ainer is secu re ly stored
and mounted.
0 Note
• If you use eng ine oi l tha t does not expressly conform to Audi oil
specification VW 507 00, very serious and very expensive damage to
your vehicle's engine wil l occu r. Engine damage caused by using
the wrong engine oi l is not covered by your New Vehicle Limited
Warranty .
• Not a ll commercia lly available oils conform to this very rigid Audi
oi l quality standard even though they may be synthe tic -based and
have the same viscosity. •
Engine cooling system
Coolant
The engine coolant perf orms two functions: 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.
Do not reduce the concentration of the coo lant in the summer by
adding pla in water. The proporti on of coolant additive mu st 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 22 4.

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

-~_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 224.
- 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 69 an d 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, "Coolant". Even in a n eme rge ncy, if co olant add it ive
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 .•

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Centigrade
Switching between Centigrade and Fahrenheit ...... .... ........ ... 101
Central locking panoramic sliding sunroof closing .. . 50
Certification . . . . . . . . . . . . . . . . . . . 267, 302
Changing a flat tire ...... .... .... ... 270
Changing engine oi l .. ... ... .. .... ... 230
Chassis Undercoating . . . . . . . . . . . . . . . . . . . . 211
Checking Engine coolant level ...... .... .... 233
Checking tire pressure ............... 249
Child restraint
Danger of using child restraints in the
front seat . . . . . . . . . . . . . . . . . . . . . . 147
Child restraint system anchors ........ 180
Child restraints Where can I get additional information
about child restraints and their use? ...
185
Child safety .. .... .............. 167, 172
Convertible locking retractor . . . . . . . 177
Important safety instructions for using
child safety seats ............... 170
Important things to know when driving with chi ldren ..... ....... ....... 167
Installing a child restraint using the
LATCH system ... .... ........ ... 182
Mounting and releasing the anchorage hook ...... ...... ....... ....... 182
Te ther anchors .................. 183
T ether straps .. .... ....... ....... 183
Child safety lock ...... .... .... .... ... 45 Child safety seats
.... .... .... ...... . 172
Booster seats . . . . . . . . . . . . . . . . . . . . 175
Convertible chi ld seats ............ 173
Convertible locking retractor ... .... 177
How do I properly install a child safety
seat in my vehicle? .... .... ...... 170
Infant seats . . . . . . . . . . . . . . . . . . . . . 172
Installing ....................... 177
LATCH system . . . . . . . . . . . . . . . . . . . 182
Safety instructions .... .... ...... . 170
Child seats Lower anchorages . . . . . . . . . . . . . . . . 181
Cleaning Alcantara (synthetic suede) ... .. ... 214
Engine compartment ............. 215
Fabrics and fabric c ,overings ..... .. 211
Instrument panel .... ... .... .... .. 212
Interior ............ ... ........ .. 211
Leather ..... .. ... ... .. .... ..... . 213
Plastic and vinyl .. ..... ... .... ... 208
Plastic parts ... .. . ... .... ....... . 212
Safety belts . .................... 215
Trim strips ...................... 207
trim strips ..... ...... ..... .... ... 208
Cleaning and protection ...... .... ... 204
Climate controls ... .. .... .... .... .... 96
Addi tional heater . . . . . . . . . . . . . . . . 103
Air distribution . . . . . . . . . . . . . . . . . . 101
Air outlets . . . . . . . . . . . . . . . . . . . . . . . 102
Air recirculation .... .... .... ...... 101
Air recirculation mode (manual) .... 100
AU TO (standard setting) ............ 99
Automatic air recirculation ...... .. 100
Contro ls .. ....... ..... ..... .. .... 98 Defrosting
/defogging ...... .... .... 99
Description ... .. ... .... ...... ... .. 96
Fan .. ...... ... .. .... ........ ... 101
Key-coded setting ................ 103
Recommended settings ............ 96
Setting the temperature .... .... .... 99
Switching between Fahrenheit and
Centigrade ... ........ ...... .... 101
Switching the air conditioning on and off 99
Using the climate control economically . .
102
Warm and cold ... .... .... .... .... 96
Clock .................. ......... ..... 9
Coat hooks . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Cold tire inflation pressure .. .... ..... 246
coming home ..... .. .... .... .... .... 54
Compartments in the door trims ... ... . 94
Compass mirror . ...... ... ... ........ 70
Comp liance .......... ....... .... ... 302
Consumer Information ........... 133, 298
Contacting NHTSA .................. 133
Convenience close/open feature
Windows .......... ....... .... .... 48
Convertible chi ld safety seats
Convertible locking retractor 173
Activating ....................... 179
Deactivating ................. .... 180
Using to secure a child safety seat .. 177,
179
Coolant system ........ .. ... . .... ... 232
Cooling System Expansion tank ... .. ...... .... ... 233

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Engine
4-cylinder diesel (140 hp) ... ... ... . 226
4 -cylinder gaso line (200 hpl .... .... 225
Coolant .. ...... ..... .... .... .... 232
Hood ...... ....... .... ... .... ... 223
Starting .................... 106, 107
Starting with jumper cables .. .... . 285
Stopping ... .. .... .... .... .... .. 108
Engine compartment . .... .... ...... . 225
Safety instructions . . . . . . . . . . . . . . . 224
Working in the engine compartment 224
Engine coolant system ... .... ....... 232
Adding coolant .... ....... ..... .. 234
Checking coolant level . . . . . . . . . . . . 233
Checking the engine coolant level .. 233
Radiator fan . . . . . . . . . . . . . . . . . . . . . 235
Engine coolant temperature
Gauge .... .... .... .... ... .... .... . 9
Engine cooling system Malfunction ........ ... .. .... .... . 30
Engine data ........ ............... . 296
Engine fault Warning light . . . . . . . . . . . . . . . . . . . . . 13
Engine hood Closing . .... ... .. .... .... ...... . 224
Release lever ...... .... .... ...... 223
Re leasing and opening ......... ... 223
Engine ma lfunction (diesel engine)
Warning light . . . . . . . . . . . . . . . . . . . . . 13
Engine oil .. ............. .. .... .... 226
Adding . .... ... .. .... ...... ... .. 230
Additives . . . . . . . . . . . . . . . . . . . . . . . 230
Changing ............... ........ 230 Checking the engine oil
level ... .... 229
Diesel engine .. ..... .. ...... ..... 231
Indications and conditions requiring extra checking ... ....... ...... ...... 229
Oil consumption ................. 228
Oil grades . .... ........ .... ...... 226
Recommended oil check intervals .. 229
Specification and viscosity ...... .. 226
Specifications Diesel engine ....... 231
Specifications gaso line engine ..... 226
Engine oi l level ................... 32, 33
Engine oi l pressure (malfunction) .. .... 31
Engine oil sensor defective .. ... .... ... 33
Engine speed limitation .. ...... .... ... 32
Environment Break -in period . . . . . . . . . . . . . . . . . . 195
Catalytic converter . . . . . . . . . . . . . . . 196
Diesel particulate filter ............ 197
Disposing of your vehic le battery ... 237
Driving at high speeds . . . . . . . . . . . . 198
Driving to minimize pollution and noise .
198
Fuel ............................ 220
Fuel economy . . . . . . . . . . . . . . . . . . . 198
Leaks under your vehicle . .... ... .. 224
Letting the vehicle stand and warm up ..
198
Proper disposal of drained brake fluid
236
Proper disposa l of drained engine
coo lant .. .... ... .... .... .... ... 234
Proper disposa l of dra ined engine oil 230
Recycling used eng ine oil ...... ... 230 Unleaded fuel
..... ... .... .... .. . 217
What should I do with an old battery?
237
EPC
See Electronic power control . . . . . . . . 13
ESP
See Electronic Stability Program .... 188
Event Data Recorder (EDRJ ............ 188
Expansion tank 233
F
Fahrenheit
Switching between Fahrenheit and Centigrade . ...... .............. 101
Fan Adjusting the fan speed .. ...... ... 101
Climate controls ...... .... ....... 101
Radiator ........ .... ... .. .... ... 235
Fastening Booster seats . . . . . . . . . . . . . . . . . . . . 175
Convertible chi ld safety seats ...... 173
Infant seats
Fastening eyes
Flat ti re 172
.. .... .... .... ... .. ... 82
Changing .. .... .... ... ........ .. 270
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . 130
Fog lights, front .. .... .... ........... 55
Folding master key with remote control . 36
Foot pedals ........................ 130
For the sake of the environment
Gaso line fumes and the environment 220
Letting your engine warm up . ..... . 107