engine AUDI A3 2015 Owners Manual

complexity of today's automobi les, have
steadi ly reduced the scope of maintenanc e
and repairs which can be carried out by vehicle
owners.
Also, safety and env ir onm ental con­
cerns p lace very strict limits on the nature of
repairs and adjustments to engine and trans ­
miss ion pa rts which an owner can perform .
Maintenance, adjustments and repa irs usua lly
require special tools, testing dev ices and oth­
er equipment avai lab le to specially trained
workshop personnel in order to assure prope r
performance, reliab ility and safety of the vehi­
cle and its many systems .
Improper ma intenance, adjustments and re ­
pa irs can impair the operation and reliability
of your vehicle and even vo id your vehicle war­
ranty. The refo re, p roof of servic ing in accord­
ance w ith the ma intenance sched ule may be a
condition for upholding a poss ible war ranty
claim made within the warranty period.
Above all, operational safety can be adversely
affected, crea ting unnecessary risks for you
and your passengers.
I f in doubt about any servicing , have it done
by your authorized Audi dealer or any other
p roperly equipped and q ualified workshop .
We strong ly urge you to give your aut horized
Audi dealer the opportunity to perfo rm all
schedu led maintenance and necessary repairs .
Your dea ler has the facilities, or iginal parts
and trained spec ialists to keep your vehicle
running properly .
Performing limit ed m aintenance you rself
The fo llowing pages describe a limited num­
ber of procedures which can be performed on
your vehicle with ordinary too ls, should the
need arise and trained personnel be unavaila­
b le. Before performing any of these proce­
dures, always thoroughly read all of the app li­
cable text and carefully follow the instruc­
tions given. Always rigorously obse rve the
WARNINGS provided .
Before you check anything in th e engine
compartment, a lways re ad and heed all
WARNINGS ~&. and
~page 210 .
Con sumer In formation 269
_& WARNING
- Ser ious personal injury may occur as a re­
sult of improperly performed mainte­
nance, adjustments or repa irs .
- Always be extremely careful when work­
ing on the vehicle . Always follow com­
monly accepted safety pract ices and gen­
era l common sense. Never r isk personal
injury.
- Do not attempt any of the maintenance,
checks or repairs descr ibed o n the fol­
lowing pages if you are not fully fam ilia r
with these or other procedures with re­
spect to the vehicle, or are uncertain how
to p roceed .
- Do not do any work without the proper
too ls and equipment. Have the necessary
wo rk done by your authorized A udi deal­
er or another proper ly equipped and
qualified workshop.
- The engine compartment of any motor
veh icle is a potentially ha zardous area.
Never reach into t he area around or
touch the rad iator fan . It is temperature
contro lled and can switch on suddenly -
even when the engine is off . T he radiato r
fan switches on automat ically when the
coo lant reaches a certain tempera ture
and will cont inue to run until the coo lant
temperature drops .
- Always sw itch o ff the ignition before any­
one gets under the vehicle.
- Always support your veh icle with safety
s tands if it is necessary to work under­
neath the vehicle. The jack s upplied with
the vehicle is not adequate for this pu r­
pose and cou ld collapse causing serio us
personal injury.
- If you m ust wor k underneath the vehicle
with the wheels on the g round, a lways
make sure the vehicle is on leve l ground,
that the wheels are a lways securely
blocked and that the engine cannot be
started.
- Always make sure the transmission se­ lecto r lever (automatic transmission) is •
•

2 70 Con sum er Inf ormation
in P (Park position) and the park brake is
applied.
@) For the sake of the environment
- Changing the engine settings wi ll ad ­
versely affect emission levels . This is det­
rimental to the environment and increas­
es fue l consumption .
- Always observe env ironmental regula­
tions when disposing of old engine oil,
used brake fluid, dirty engine coolant,
spent batteries or worn out tires.
- Undeployed airbag modules and preten­
sioners might be classif ied as Perchlo­
rate Material -spec ial handling may ap­
ply, see www .dtsc .ca .gov/hazardous ­
waste/perch lorate . When the veh icle o r
parts of the restraint system including
airbag modules safety belts wit h preten­
s ioners are scrapped, all appl icable laws
and regulations must be observed. Your
a utho rized Audi dea ler is familiar with
these requirements and we recommend
that you have your dealer perform this
serv ice for you .
Additional accessories,
modifications and
parts replacement
Additional accessories and parts
replacement
Always consult an authorized Audi dealer be­
fore purchasing accessories .
Your vehicle incorporates the latest safety de ­
sig n features ensuring a high standard of ac­
tive and passive safety .
This safety could be compromised by non-ap­ proved changes to the veh icle. For this reason ,
if parts have to be replaced, p lease observe
the following points when installing addition­
a l accessories:
Approved Audi accessor ies and genuine Audi
parts a re ava ilable from authorized Aud i deal­
e rs. These dea
lers a lso have the necessary facili­
ties, tools and trained specialists to install the
parts and accessories proper ly .
A WARNING
=
Using the wrong spare parts or using non-
approved accessories can cause damage to
the veh icle and ser ious perso na l injury .
- Use on ly accessories express ly approved
by Audi and genuine Audi spare parts
- These parts and accessories have been
specia lly designed to be used on your ve­
h icle.
- Never install accessor ies such as tele­
phone crad les or beverage ho lders on a ir­
bag covers or within the airbag deploy ­
ment zones . Do ing so wi ll increase the
ris k of injury if a irbags are triggered in an
accident!
- Before you check anything in the engine
compa rtment, always read and heed a ll
WARNINGS
c:::> page 210 .
(D Note
-If items other than genu ine Audi spare
parts, add-on equipment and accessory
items are used o r if repair wo rk is not
performed ac cord ing to spe cified meth­
ods, this c an resu lt in seve re damage to
yo ur vehicle's eng ine and body (such as
co rrosion) and adversely affect yo ur vehi­
cle's warranty.
- If emergency repairs must be performe d
elsewhere , have the vehicle examined by
an authorized Audi dealer as soon as
possible.
- The manufacturer cannot be held liable
for damage wh ich occ urs due to failure
to comply with these stipu lations.
Technical Modifications
Our guidelines must be complied with when
t echnical modifica tions are made.
Always consult an authorized Audi dealer be-
fore start ing work on any modifications. ll>-

Consumption (fuel) ... ..... .. .. .. .. .. 2 7
Contact ing N HTSA .............. .... 129
Controls cleaning .......... .... .. .. . 203
Conven ience key
E mergency operation ... ... .. .. .. .. .. 75
I ndicator light . . . . . . . . . . . . . . . . . . . . . 7 5
Starting the engine (START ENGINE STOP button) .. .. ................. .. .... 73
Stopping the engine (START ENGINE
STOP bu tton) ............ .... .. .. .. 74
Sw itch ing the ign ition on ......... ... 73
un locking/locking ........... .... ... 34
Conven ience opening/closing .. .. .. .. .. 39
Conver tible c hild safety sea ts .. .. .. .. . 173
Convertible locking retractor
Activating . . . . . . . . . . . . . . . . . . . . . . . .
179
D eactivating ................ .. .... 180
Using to secure a c hild safety sea t
1.7 7, 179
Coolant
refer to Engine coo lant ..... ... ... .. 216
Coolant system
Adding coolant . ... .... ... .. .. .. .. .
2 17
Coolant leve l check ing ..... .. .. .. .. . 217
Eng ine coolant temperature gauge .. .. 12
Cooling mode (automatic clima te con trol
system) ..... .. ... .. ..... ... .. .. .... 66
Cooling mode (manua l cl imate control sys-
tem) ...... .. ................. .. .... 65
Cooling system Indicator lights . . . . . . . . . . . . . . . . . . . . 20
Cornering light .... ..... ... .. .. .. .. .. 42
C ruise control system
C hanging speed . . . . . . . . . . . . . . . . . . . . 80
D escr ipt ion . ............. .. .. .. .. ..
79
P rese lecting speed . . . . . . . . . . . . . . . . . . 80
Sw itching off .. .. ..... ... .. .. .. .. .. 80
switch ing on . ... .. .... ... .. .. .... .. 80
(upho lde rs . . . . . . . . . . . . . . . . . . . . . . . . . 5 7
Current consumpt io n . . . . . . . . . . . . .
26, 27
D
Data recorder . . . . . . . . . . . . . . . . . . . . . . 185
D ate display . ............. .... .. .... 10
Daytime running lights .......... ... ... 42
Inde x 275
Declarat ion of compliance
Adaptive cruise contro l .. .... ... .. ..
2 71
A udi s ide ass ist . ... . .. ... .... ... .. 2 7 1
Ce ll phone package ................ 271
Convenience key .. .... ............. 271
Electronic immob ilizer ............. . 271
Homelink universal remote con trol ... 271
Remote cont ro l key ............... . 271
Decorative parts/tr im cleaning .... .. .. 203
De fec tive light bu lb w arning
Ind icator light ..... . .. .. ..... ... .. . 2 4
Defrost ing (w indsh ie ld)
automat ic cl imate control system .. .. .
6 7
man ua l cl imate co ntrol system ... .. .. . 65
DEF (instrument clus ter) ......... .. .. .
11
Del uxe a utomatic climate control
refer to Climate contro l system (auto -
matic) .... .. .. .. ................. .
66
Determining co rrec t load l imit .... .. .. 234
D igital compass . . . . . . . . . . . . . . . . . . . . . 50
Dimensions ....... .. . .. .. ..... ... ..
266
D imming the rearv iew mi rror ..... .. .. . 49
D isplays cleaning .. ................. 203
D istance ... .. .. .. .. . .. ... .... ... .. .
27
Door/ rear lid warning . .. .. ...... .... .. 26
Door contact switch . . . . . . . . . . . . . . . . . . 45
Doors Child sa fety lo ck (mech ani cal) .... .. .. . 38
Driver informat io n system ........... ..
26
CD/rad io disp lay .. .. . .. .... .... .. .. . 26
Door/rear lid wa rni ng . ...... ... .... . 26
Drive r messages . . . . . . . . . . . . . . . . . . . . 14
E ff iciency program . . . . . . . . . . . . . . . . . . 28
Ind icator lights .... . .. .. ..... ... .. . 14
On-board computer .. .. ..... ... .. .. .
27
Outside temperature disp lay .. ... .. .. . 26
Serv ice interval display . . . . . . . . . . . . . . 13
U sing the mu ltifunction steering wheel .
26
Driver seating position ... ..... ... .. .. 122
D rive select
refer to Aud i d riv e select ........... . 102
D riving safely . . . . . . . . . . . . . . . . . . . . . .
121
Drivi ng throug h wate r ........... .. .. 194
Driving time . . . . . . . . . . . . . . . . . . . . . . . .
27
D ust filter
refer to Poll utant fi lter ......... .... . 64
•
•
•

276 Index
E
ECO mode (automatic climate control sys -
tem) . ..... .. ................ ..... .. 67
EDL
refer to Electronic differentia l lock . .. . 185
Efficiency program . . . . . . . . . . . . . . . . . . . 28
Description . ...... .......... ... .. .. 28
Fuel economy messages . . . . . . . . . . . . . 29
Other equipment . . . . . . . . . . . . . . . . . . . 29
Electrical accessories
refer to Socket ............. .. .... .. 56
Electromechanical parking brake
refer to Parking brake ............... 76
Electromechanical steering .. .. .. .. .. . 189
I ndicator lights .......... .. .. .... . 189
Electronic differential lock ... .... .... . 185
Indicator light . . . . . . . . . . . . . . . . . . . . . 22
Electronic immobilizer ....... ... .... .. 36
also refer to Immobilizer . . . . . . . . . . . . 31
E lect ronic interaxle differential lock .... 185
Electronic speed limiter ..... .. .. .. .. . . 30
Electronic stabilization control (ESC)
Indicator light . . . . . . . . . . . . . . . . . . . . . 22
Electronic Stabilization Control (ESC) ... 185
Emergency assistance .......... .... . 246
Emergency flasher .......... ... .... .. 43
Emergency flashers
I ndicator light . . . . . . . . . . . . . . . . . . . . . 25
Emergency operation Emergency braking function .. .. .. .. . . 78
Front passenger's door/rear doors . . . . . 3 7
L uggage compartment lid ........ .. . 246
Panorama sunroof ........ .. .. ...... 41
with conven ience key .... .. .. .. .. .. . . 75
Emergency release Fuel filler door .............. ... ... 209
Selector lever . . . . . . . . . . . . . . . . . . . . . 112
Emergency starting ........ .. .. .. .. . 259
Emergency towing ......... .. .. .. .. . 261
Energy management . . . . . . . . . . . . . . . . 190
Indicator light . . . . . . . . . . . . . . . . . . . . . 20
Engine Coolant .. .. ..................... . 216
Starting with jumper cables .... .... . 259
starting (button) . .. ...... .. .. .. .. . . 73 Starting (driver messages with conven-
ience key) ..... .. ................ .. 75
starting (key) . ... ................ .. 70
stopping (button) ............. ..... 74
stopping (key) ................ ..... 72
Engine compartment
Closing the hood . . . . . . . . . . . . . . . . . . 211
Opening the hood ................ . 211
Overview .. .... .. ... .......... .... 212
Safety precautions ............... .. 210
Engine control (indicator light) . . . . . . . . . 23
Engine coolant .. .. .......... ... .. .. 216
Radiator fan ... .. ... .......... .... 218
Engine oil .. ................... .... 212
adding . .. .. .. .. ... .......... .... 215
Changing . ...... ... ......... ... .. 216
Checking the oil level ... ..... ... .. .. 215
Dipstick... .. .. .. .... .... .... 212, 215
Indicator light .................... . 20
Oil consumpt ion .. ............. .. .. 214
Oil grades ..... .. ............. .... 212
Specification and viscosity ........ ... 212
Use ..... ..... .. .. .............. . 215
Engine speed limitation ( indicator light) . 23
Environment Break -in per iod . .. ... ....... ... .. .. 193
Catalytic converter ....... ...... .. .. 194
Disposing of your vehicle battery ..... 223
Driving at high speeds .......... .... 195
Driving to minimize pollution and noise 195
Fuel economy .... ................ . 195
Letting the vehicle stand and warm up . 196
Proper disposal of drained brake fluid . 219
Proper disposal of drained engine oil .. 216
Unleaded fuel .... ... .......... .... 206
What should I do with an old battery? . 223
EPC (engine control) ................ .. 23
ESC Electronic stabilization control ... .. .. 185
Post-coll is ion brake assist ..... .. .. .. 186
Sport mode ... .. ................ . 187
ESP
refer to ESC ... .. ..... ..... ... .. .. 185
Event Data Recorder (EDR) ............ 185
Exhaust tail pipes cleaning ........... 202
Exterior lighting ... ..... ..... ... .. .. . 42

Loading the roof rack . . . . . . . . . . . . . . . . . 60
Lackin g/unlocking
by remote control .................. 33
with the central locking switch .. .. .. .. 35
with the convenience key . . . . . . . . . . . . . 34
with the door lock ............ .. .. .. 35
Long-term memory .................. 27
Low beam Indicator light . . . . . . . . . . . . . . . . . . . . . 24
Low beams . ................... ..... 42
Lower universal anchorages (Canada) .. . 180
Lugg age compartment ............ ... . 60
Cargo net .. ................. .. .... 62
Increasing the size ........ .... .. .. .. 61
Loading .. ... .................. .. .. 60
Pass-through . . . . . . . . . . . . . . . . . . . . . . 63
Reversible mat ..................... 62
Socket ... .. ................. .. .... 56
Stowing luggage .................. 127
Tie-downs . . . . . . . . . . . . . . . . . . . . . . . . . 62
Luggage compartment lid
Central locking . . . . . . . . . . . . . . . . . . . . . 3 7
Emergency release ........ .... .. .. . 246
Lumbar suppo rt . . . . . . . . . . . . . . . . . 53, 54
M
Maintenance ................. ..... . 268
Maintenance intervals
with driver information system ........ 13
Malfunction Indicator Lamp (MIL) . . 23, 29
Mirro r
Digital compass switching on and off . .. 50
dimming . .. ................. .. .... 49
Vanity mirror ............ ...... .... 46
Mirror compass .................. .... SO
Mirrors Adjusting the exte rior mirrors . .. .. .. .. 48
Monitoring the Advanced Airbag System 152
Motor
Index 279
Navigation system CD-ROM player . . . . . . . . . . . . . . . . . . . . . 58
New tires and wheels ................ 236
NHTSA Contacting .. .. .. .. ..... .......... 129
Number of seats ..... ............... 131
Number of vehicle keys ............... 31
0
Occupant seating positions ........... 122
Octane rating ... .... ............... 206
Odometer ...... .................... 11
Oil Ind icator light . . . . . . . . . . . . . . . . . 23, 24
also refer to Engine oil . . . . . . . . 212, 215
Oil change interva l
with driver information system . . . . . . . . 13
On-board computer . . . . . . . . . . . . . . . . . . 26
Operation (multifunction steering
wheel) ..... ..... .................. 27
On-Board Diagnost ic System (OBD)
Electronic speed limiter .............. 30
Malfunction Indicator Lamp (MIL) .. .. . 29
Opening ................. ........... 31
Fuel filler door ... .. . .. ... .... ..... 208
Hood ........ ... .. ............... 211
Luggage compartment lid ............ 37
Panorama sunroof .................. 40
Windows ......................... 38
Opening/closing with the central locking switch ........ 35
with the convenience key ........ .. .. . 34
with the door lock .................. 35
Operate your vehicle economically and
minimize pollution .................. 195
Other equipment (efficiency program) . .. 29
Outside air temperature display ........ 11
Overview illustration (cockpit) . . . . . . . . . . . 8
•
•
stopping (driver messages with mechani-p
cal ignition key) ................ .... 75
Multifunction steering wheel . .. .. .. .. .. 27 Paint damage
203
On-board computer ................. 27 Paint No
........................... 265
•
Panorama sunroof ... . .. .. ... ... .... . 40
N
Convenience opening/closing ......... 39
Emergency closing ................ .. 41
Natural leat her care/cleaning .. .. .. .. . 204

282 Index
Selector leve r (automatic transmission)
Emergency operation . ... .. .. ... ... . 1 12
Position ... ... ... .... ... .. .. .... . 105
Service and disposal Safety belt p retens ioner ... .. .. .... . 138
Service in terval d isp lay
with d rive r info rmat ion system .. .. .... 13
Sett ing clock ... ............. .. .... .. 10
Sett ing da te ............ .. .. .. .. .. .. 10
Sett ing t he temperature
a utomatic cl ima te control system ... . . 67
Sett ing t ime ... .. ...... ... .. .. .... .. 10
SE TUP (basi c sett ing) ....... .. .. .... .. 10
Shift i ndicator .. ........... .. .. .... .. 12
Shift paddles (automatic transmiss ion) . 110
Short-te rm me mory ......... ... .. .. .. 27
Side airbags Descr ipt ion ................ .. .... . 160
H ow they work ............ ... .. .. . 161
Side assist . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Ad justing the br ightness ... .. .. .... . 100
C leaning the sensors ...... .. .. .. .. . 202
Sensor range .............. .. .... .. 99
switch ing on and off ....... ..... .. . 100
Side curta in a irbags ..... ... .. .. .... . 163
Descript ion .. .. . ...... ... .. .. .... . 163
How they wo rk ........... .... .... . 164
Safety instructions ........ .. .. .. .. . 164
Sliding/ tilting sun roof
refer to Panorama sunroof ... .... .. . . 40
Snow chai ns . ... .. ..... ... .. .. .. .. . 241
All whee l dr ive ........... .. .. .... . 190
Socket .. .. .. ............... .. .... .. 56
Sources of in formation about chi ld re -
straints and their use . . . . . . . . . . . . . . . . 184
S peed li mite r ........... .. .. .. .. .. .. 30
Speedometer . . . . . . . . . . . . . . . . . . . 10, 26
Spee d rating let ter code ... .. .. .... .. . 23 7
Speed war ning system ... ... .. .. .. .. . . 79
Sport mode .... ........... .. .. .... . 187
S tar bu tto n .. ............. .. .. .. .. .. 27
STAR T ENGINE STOP button (convenience
key) ...... .. ................ ... ... . 73
S TART ENGINE STOP (convenience key) ... 74
S tarti ng
H ill hold . ............... .. .. .... .. 78 Starting from a stop
Hill start assist ... .. ... ..... ... .. .. . 77
S tarting (eng ine)
A ut oma tic start (bu tton) ........ .. .. . 73
A utomati c start (key) . . . . . . . . . . . . . . . . 70
Malfunction (b utton) . . . . . . . . . . . . . . . . 73
Malfunction (key) .... .. ..... .... . .. . 71
with button . . . . . . . . . . . . . . . . . . . . . . . 73
with key .. .... .. .. ........... .... . 70
Stee ring
El ec tromec hanical s teer ing . . . . . . . 189, 0
I nd icator light ... .. .... .... ... .. .. . 21
Locking steering (ignition key) .... . .. . 72
Locking the steering (button) .... .. .. . 74
locking (mecha nica l ignition key) . .... . 70
also refer to Electromechanical steer-
ing ........ ... .. .. ... ........... . 189
Stee ring wheel
adjusting . .... .. ............. .... . 70
Buttons . .. .. .. .. ............. .. .. . 27
Mult ifunct ion steer ing whee l .. .. .... . 26
S hift paddles (automatic transmission) 110
Steps for determining cor rect load limit . 234
Stoppi ng (engi ne)
wi th bu tton . . . . . . . . . . . . . . . . . . . . . . . 7 4
wi th key . ..... .. .. .... .... ... .. .. . 72
Storage compa rtments . . . . . . . . . . . 57, 58
S tronic transmission
refer to Aut omatic transmission .. .. .. 105
Su bwoofer .. .... .. ............. .... 2 48
Su n visors .. ... ... .. .............. .. 46
Switching dayt ime ru nning lights on and
off .... .... .... .. ............. .... . 44
S wi tching the igni tion on and off (w ith
key) ... .. .. .... .. .. ... ..... ... .. .. . 70
Symbols
refer to I ndicator ligh ts . . . . . . . . . . . . . . 14
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 10, 11
T ail lights cleaning .... .. ..... ... .. .. 202
T echnical data ... .. ............. .... 265
Technical modificati ons .......... .... 270
T emperature display
Coolant ... .... .. .. ... ..... ... .. .. . 10
Outside air tempe ratu re ..... .... . .. . 11