2015 AUDI A3 ignition

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 •
•

278 Index
How many airbags does my vehicle have?
How often should I check my tire pres-148
sures? .. .. .... ............. ...... . 232
How safety belt pretensioners work .... 137
Hydroplaning .............. ... .... . 236
I
Ignition
Indicator light . . . . . . . . . . . . . . . . . . . . .
21
switching on and off (with button) ... .. 73
Ignition key safety interlock . . . . . . . . . . . 70
Ignition lock
mechanical . . . . . . . . . . . . . . . . . . . . . . . .
70
Immobiliz er . . . . . . . . . . . . . . . . . . . . . . . . 31
Important things to do before driving .. 121
Improperly worn safety belts . . . . . . . . . . 13 7
Indicator lights . . . . . . . . . . . . . . . . . . . . . .
14
Infant seats .............. .... .... . 172
Installing child safety seats
Safety belts . . . . . . . . . . . . . . . . . . . . . .
177
Insta lling the upper tether strap on the
anchorage ..... ........... .... .... .
183
Instrument cluster ......... ...... .. .. 10
Instruments ................. ..... .. 10
Adjusting the lighting ........... ... . 45
Interior lighting ..................... 45
Intermittent (windshield wipers) ... .... 46
]
Jump-starting 259
Jump er cables ... .......... .. .. .. .. . 260
K
Key ......... ........ ........ ....... 31
Checking the number ................ 31
Driver messages (mechanical ignition
key) ..... .. ................ ..... ..
75
Dr iver messages (with convenience key). 75
Key not recognized ......... ... .... .. 75
Key replacement . . . . . . . . . . . . . . . . . . . 31
Replacing the battery ....... .. .. .. .. 33
un locki ng/locking . . . . . . . . . . . 33, 34, 35
Key recognition
automatic climate control system ... ..
66
Manual climate contro l system . . . . . . . . 65
Kick-down
Automatic transmission
110
Kn ee air bags ................... .... 157
Description .. .. .. ............. .. .. 157
How they work .................... 158
Important safety instructions ........ 159
L
Lane assist
refer to Active lane assist ........ ... . 94
LATCH ........ .... ............... . 180
Description .... .. .. .............. . 181
Installing a child restraint ........... 182
Location ......................... 181
Mounting and releasing the anchorage
hook ..... .... .. .. .............. .
182
Launch Control-Program (automatic trans-
m1ss1on) ....... .. .. ........... ....
111
Leather care/clean ing ................ 204
Leaving home ..... .................. 44
LED headlights
All-weather lights ..................
42
Lifting jack . .. .. .. ................. 251
Lifting vehicle .................. .... 263
Light
adaptive light .. .................. ..
42
Adjust ing automatic headlights ....... 44
Coming/Leaving home .............. . 44
Fog lights/rear fog light(s) ........... 42
Headlight flasher ................... 44
Headlights . . . . . . . . . . . . . . . . . . . . 42, 44
Highway light .... ................ ..
43
Low beams ..................... ... 42
Parking light .......................
42
Switching daytime running lights on and
off ........... .. .. .............. .. 44
Light/rain sensor
Head lights ....................... . 42
Indicator light .....................
25
Intermittent (windshield wipers) ...... 46
Lighting
Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . .
45
Lights
Ambient lighting ...................
45
Headlight range control system ... ... . 42
Interior/reading . ...................
45

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