2015 AUDI S3 coolant temperature

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Radiator fan
The radiator fan switches on automatically by
itself
An auxiliary electric radiator fan switches on
and off depending on coolan t temperature
and other vehicle operating conditions .
After you switch the engine off, the auxiliary
fan can continue running for up to 10 minutes
- even with the ignition off. It can even switch
on again later by itself<=>.& , if
- the temperature of the engine coolant rises
due to the heat build-up from the engine in
the engine compartment, or
- the engine compartment heats up because
the vehicle is parked in intense sunlight.
A WARNING
-To reduce the risk of personal injury nev­
er touch the radiator fan.
- The auxiliary electric fan is temperature
controlled and can switch on suddenly
even when the engine is not running.
- The auxiliary radiator fan switches on au­
tomatically when the engine coolant
reaches a certain temperature and will
continue to run until the coolant temper­
ature drops.
Brake fluid
Checking brake fluid level
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Fig. 165 Engine compa rtment: cove r on the brake fluid
rese rvoir
Before you check anything in the engine com­
partment,
always read and heed all WARN­
INGS r::;, page 217 .
Checking and Filling 22 7
.. Read the brake fluid level from the brake
fluid reservoir <=>
fig. 165, <=> page 220,
fig. 159.
T he brake fluid level must be be­
tween the "MIN" and "MAX" markings.
The location of the brake fluid reservoir can be seen in the engine compartment illustration
<=>page 220.
The fluid level may drop slightly after some
time due to the automatic adjustment of the
brake pads. This is not cause for alarm.
If the brake fluid level falls considerably be­
low the "MIN" mark, the brake warning/indi­
cator light . (U.S. models)
I. (Canadian
models) will come on
c:> page 18 . Do not con­
tinue to operate the vehicle. The complete
brake system should be thoroughly checked
by an authorized Audi dealer or other quali­
fied facility and the cause corrected . If the
brake fluid level is too low, the brake warning/
indicator light will illuminate. Contact an au­
thorized Audi dealer
immediately.
Changing brake fluid
Have the brake fluid changed by an experi­
enced technician.
Brake fluid absorbs moisture from the air . If
the water content in the brake fluid is too
high, corrosion in the brake system may result
after a period of time. The boiling point of the
brake fluid will also decrease considerably and
decrease braking performance.
Therefore, the brake fluid must be changed
every two years . Always use new brake fluid
which conforms to Federal Motor Vehicle
Standard "FMVSS 116 DOT 4".
The brake fluid reservoir can be difficult to
reach, therefore, we recommend that you
have the brake fluid changed by your author­
ized
Audi dealer. Your dealer has the correct
tools, the right brake fluid and the know-how
to do this for you.
II>-

296 ~l :..:.: nd ~e ~x :._ ______________________________ _
Closing
Hood . ..... ... . ...... ... .. .. .... . 219
Panorama s unroof ..... ... .. .. .... .. 44
W indows ............... .... ...... 43
C losing/open ing
by remote con tro l . . . . . . . . . . . . . . . . . . 3 7
with the central locking switch ...... . . 39
with the convenience key . . . . . . . . . . . . . 38
with the door lock ........ .. .. .... .. 39
Cockpi t (ove rview) . . . . . . . . . . . . . . . . . . . . 8
Cold ti re i nflat ion pressure ....... .. .. . 240
Com ing home . .. .. ..... ... .. .. .... .. 48
Compartmen ts .......... .. .... .. .. .. 6 1
Compass in the mirror .......... .. .. .. 54
Comp liance .. ... .. ..... ... .. .. .... . 292
Consumer Info rmation . . . . . . . . . . 133, 289
Consumpt ion (fue l) . . . . . . . . . . . . . . . . . . 28
Cont acting NH TSA ......... .. .. .... . 133
Conve nience key
Eme rgency operation . . . . . . . . . . . . . . . . 79
I nd icator light . . . . . . . . . . . . . . . . . . . . . 79
St arti ng the eng ine (START ENG INE ST OP
b utton) .. .. ............. .. .. .. .. .. 77
S topping the engine (S TAR T EN GIN E
STO P button) .. . ...... ... .. .. .... .. 78
Switching the ign ition on . ... .. .... . . 77
un locking/locking ........ .. .. .. .. .. 38
Conve nien ce opening/closing .. .. .. .. . . 43
Convertible c hild safety seats .. .. .... . 177
Conve rtible locking retracto r
Activating .. ... .. ..... ... .. .. .... . 183
Deactivating . . . . . . . . . . . . . . . . . . . . . . 184
Using to secure a c hild safety seat l81, 183
Coolant
refer to Engine coo la nt . ... .. .. .... . 225
Cooling mode (automatic climate control
sys tem) . .. .... ............. .. .... .. 70
Cooling mode (manua l cl imate control sys-
tem) ........ .......... ...... ... .. .. 69
Cooling system Adding coolant . ... .... ... .. .. .. .. . 226
Coolant leve l check ing ....... .. .... . 226
Coolant temperature indicator .. .. .... 12
Ind icator light . . . . . . . . . . . . . . . . . . . . . 20
Cornering light .. .. ..... ... .. .. .... .. 4 7
C rash data recorde r (ED R) ... .. .. .. .. . 189 Cruise cont
ro l system
Changing speed . ... ... ..... ... .. .. . 84
Desc ription . ... .. ... .. ..... ... .. .. . 83
Preselect ing speed ............. .... . 84
Switching off .. .. ............. .... . 85
switching on . . . . . . . . . . . . . . . . . . . . . . . 84
C u p ho lde rs ..... .. ... .. ..... ... .. .. . 61
C ur rent co nsu mption . . . . . . . . . . . . . 27, 28
D
Data recorde r . . . . . . . . . . . . . . . . . 189, 195
Date disp lay . ..... .. ... ..... ... .. .. . 10
D ayt ime run ning lights ........... .... . 46
Declarat ion of compliance
Adaptive cruise control ............. 292
Audi s ide ass ist .. ... .. .. ... ..... .. 292
Cell phone package ... ...... ... .. .. 292
C onvenience key ... .......... .... .. 29 2
El ec tronic immob ilizer ...... .... .. .. 292
Homelin k unive rsal remo te con trol ... 2 92
Remote contro l key .. .. ..... ... .. .. 292
Defect ive light bu lb wa rni ng
I n di cator lig ht . .. ............. .... . 25
Defrost ing (windshie ld)
automatic climate control system . . . . . 71
ma nual cl imate co ntrol system ....... . 69
DEF (instr ument cluster) . ..... ... .. .. . 11
Del uxe a utomat ic cli mate control
refer to Clima te con trol sys tem ( auto -
matic) . ... .... .. ... .. .. ..... ... .. . 70
Dete rm ining co rrect load limit .. .. .. .. 250
Diesel Indicato r light . .. ... ...... .... .... . 23
Prewarm ing (bu tton) ......... .... .. . 77
P rewarm ing (key) . .......... ...... .. 74
Diesel f uel .. .... .. .. .... .... ... .. .. 211
D iesel pa rticula te filter ... ... .... .. .. 1 99
Digital compass . . . . . . . . . . . . . . . . . . . . . 54
D imens ions ..... .. .. .... .... ... .. .. 287
D im ming the rearview m irror ... .. .. .. . 53
Distance ... .. .. .. ............. .... . 28
D oor/re ar lid w arning ............ .. .. . 27
Door contact sw itch . . . . . . . . . . . . . . . . . . 49
Doors Child safety lock (mechanical) . ... .. .. . 42

M N
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M 1.1'1 ,....,
Driver information system ... .. .. .. .. .. 27
Boost ..... .. .. .. .. .... ... .. .. .... 29
CD/radio display ....... ... .. .. .. .. .. 27
Door/rear lid warning ..... .. .. .. .. .. 27
Driver messages . . . . . . . . . . . . . . . . . . . . 14
Efficiency program . . . . . . . . . . . . . . . . . . 29
E ng ine o il temperature indicator .. .. .. 32
I ndicator lights . . . . . . . . . . . . . . . . . . . . 14
L ap time r .. ............... .. .. .. .. 3 2
On- boa rd comp ute r . . . . . . . . . . . . . . . . . 28
Outside tempera ture display . ... .. .. .. 27
Service interval disp lay . ... .. .. .. .. .. 13
Using the multifunction steer ing whee l . 27
Dr iver sea ting posi tion ...... .. .. .. .. . 126
Drive se lect
refer to Audi dr ive se lect . ...... ... .. 106
D riving safe ly . .. .. ..... ... .. .. .. .. . 125
D riving through water . . . . . . . . . . . . . . . 198
Driving time . . . . . . . . . . . . . . . . . . . . . . . . 28
D ust filter
refer to Po llutant filte r . . . . . . . . . . . . . . 68
E
EC O mode ( autom atic clima te control sys -
tem) . ..... .. .. ... .. ..... ... .. .. .... 70
E fficiency program . . . . . . . . . . . . . . . . . . . 29
D escr ipt io n ................. ... ... . 29
Fu el economy messages . . . . . . . . . . . . . 30
O the r equipmen t . . . . . . . . . . . . . . . . . . . 30
Elect rical accessories
refer to Socket . . . . . . . . . . . . . . . . . . . . . 60
Elect romechanical par king brake
refer to Parking brake ..... .. .. .. .. .. 80
E lect romechan ic a l steering .. .. .. .. .. . 193
I ndica tor ligh ts .. ..... ... .. .. .. .. . 193
E lect ron ic diffe rent ial loc k ... .. .. .. .. . 189
I ndicator light . . . . . . . . . . . . . . . . . . . . . 2 2
Electronic immobili zer ...... .. .. .. .. .. 40
also refer to Immobilizer .. .. .. .. .. .. 35
E lect ro nic spee d limiter .. ... .. .. .. .. .. 31
E lect ronic stabilization control (ESC)
I ndicator light . . . . . . . . . . . . . . . . . . . . . 2 2
Sport mode .. ........... .. .. .. .. . 190
Electro nic Stabilization Control (ESC) .. . 189
Eme rgency ass istance ... ... .. .. .. .. . 26 7
E mergency flasher ...... ... .... .. .. .. 47
Inde x 297
Emergency flashe rs
Indicator light ... .. . ... ...... ... .. . 26
Emergency operation Emergen cy bra king f unct ion ..... .. .. . 82
F ron t passenger's door/rear doors .. .. . 41
L uggage compartment lid .... ... .. .. 2 67
Pano rama sunroof . .. .. ..... ... .. .. . 4S
with convenience key . . . . . . . . . . . . . . . . 79
E mergency re lease
F uel fi ller doo r ... .. . .............. 214
S e lector lever . . . . . . . . . . . . . . . . . . . . . 116
Emergency starting ................. 280
Emergency towing . ................. 282
E nergy m anagement ............ .. .. 19 4
Ind icator lig ht ... .. .. .. ...... ... .. . 2 0
E ngine
Coolant ......... .. ............... 225
Pr ewa rm ing (butto n) ............... . 77
P rewarm ing ( key) . .... ........... .. . 74
Star ting with jumper cables .. ... .. .. 2 80
S tar ting (driver messages with conven -
ience key) . . . . . . . . . . . . . . . . . . . . . . . . . 79
Starting (eng ine) . .. ............... . 77
Starting
(key) . . . . . . . . . . . . . . . . . . . . . . 7 4
stopp ing (button) .................. 78
stopp ing (key) . ......... ........... 76
Engine compartment Closing the hood ..... ............. 219
Open ing the ho od ............. .. .. 219
Overview.. .. .. .. ............ 220,221
Safety precautions ... . .. ...... .... . 217
Engine co ntrol (indicato r light) . . . . . . . . . 23
En gine coolant .. .. ................. 225
Radiator fan . .. .. .... ............. 227
Engine o il .. .. .. .. .. . .. .. ..... ... .. 221
adding ......... .. ............... 223
Changi ng ... .. .. .. . .. .... .... .. .. 224
Checking the oi l level ............. .. 22 3
Dip stic k ... .... .. .. . ..... 2 20, 22 1,22 3
Ind icator lig ht . .. .... ........... .. . 20
Oil consumpt ion . ... . .. .. ..... ... .. 2 22
Specificatio n and viscosity .... ... .. .. 221
T emperature indicato r ... .... ... .. .. . 32
U se ...... .. .. .. ................. 223
Engine speed lim itation ( indica to r li gh t) . 24
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304 Index
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With button . . . . . . . . . . . . . . . . . . . . . . . 77
With key ... ... .......... .. .. .... .. 74
Steering
Elect rom echan ical steering . . . . . . .
193, 0
Indicator light . . . . . . . . . . . . . . . . . . . . . 21
Lockin g steering (ignition key) .... .. .. 76
Locking the steering (button) ....... . . 78
Locking (mechanical ignition lock) ... . . 74
also refer to Electromechan ica l steer-
ing .. .. .. .. ........... .......... .
193
Steering wheel
adjusting . .... .......... .. .. .... ..
74
Buttons ..... .. .......... .. .. .... .. 28
Multifunction steering wheel ... ...... 27
Shift paddles (automatic transmission) 114
Steps for determining correct load limit . 250
Stopping (engine)
with button . . . . . . . . . . . . . . . . . . . . . . .
78
with key ..... .............. ..... .. 76
Storage compartments . . . . . . . . . . . 61, 62
Storage hooks . . . . . . . . . . . . . . . . . . . . . . . 66
S tronic transmission
refer to Automatic transmission . ..... 109
Subwoofer ... ................ ... ... 269
Sun visors . . . . . . . . . . . . . . . . . . . . . . . . . .
50
Switching daytime runn ing ligh ts on and
off ................................ 49
Switching the ign ition on/off (with key) .. 74
Switch the ig nition on/off (with key) . .... 74
Symbo ls
refer to Indicator lights ......... ..... 14
System indicator light ( MIL) . . . . . . . 23, 30
T
Tachometer..................... 10 , 11
TOI clean diesel
refertoAdBlue ....................
215
Technical Data ...................... 286
Technical modifications ....... .. .. ... 291
Temperature display
Coolant .. .. ................ ... .. ..
10
Outside temperature ................ 11
Tether anchors . . . . . . . . . . . . . . . . . . . . . 187
Tether strap .. .. .......... .. .. .... . 187
The first 1,000 miles (1,500 km) and after-
wards ... .. .... .............. ......
197
Tie-downs . . . . . . . . . . . . . . . . . . . . . 65, 132
Tips for the environment
Saving fu el .... .. .... ......... .....
63
tip tron ic (a utomatic transm ission) ..... 114
T ire pressure .... .. .. ........... .. .. 245
T ire pressure monitoring system ....... 264
Tires .............................. 233
Serv ice life .... .. ................ . 252
Speed rating letter code ............ 257
Tire manufacturing date ............ 256
Tire pressure monitoring system ... .. 265
Ti re specifications ................. 256
Tread depth . ................. .... 252
Unif orm tire quality grading ......... 260
Winter tires ..... ... .......... .. .. 261
T ires and vehicle load limits ...... ... .. 249
Tires and wheels
Checking t ire pressure .......... .. ..
245
Co ld tire inflation pressure .......... 240
Dimensions .. .. .................. . 254
General notes .. .................. . 233
Glossary of tire and loading terminolo-
gy ..............................
235
Low a spect ratio tires ............... 263
New tires and wheels ............... 254
Replacing ..... .. .. ........... .. .. 255
Snow chains ..... .. ........... .. .. 262
Tires and veh icle load limits ......... 249
Wheel bolts . .. .. .......... ....... 262
Winter tires ..... .............. ... 261
Tire service life .... .. ........... .. .. 252
Tool kit ....... ................... . 268
Torn or frayed safety belts ............ 138
Towing
To w t ruck procedures ......... .. .. ..
282
Towing loop ....................... . 283
TPMS (tire pressure monitoring system) . 265
Trai le r towing . .. .. .............. ... 202
Operating instruct ions .......... .. .. 202
Technical requirements . . . . . . . . 202, 203
Trai ler towing tips . ............ .. .. 203
Transmission malfunction (indicator
light ) .............................
115
Transport Canada ................... 134
Travel mode . . . . . . . . . . . . . . . . . . . . . . . . 49
Tread Wear Indicator (TWI) ........... 252