2015 AUDI A3 CABRIOLET ignition

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complexity of today's automobi les, have
steadi ly reduced the scope of maintenance
and repairs which can be carried out by vehicle
owners.
Also, s afe ty and en vironm ental con­
cerns p lace very strict limits on the nature of
repairs and adjustments to engine and trans ­
miss io n pa rts which an owner can perform .
Maintenance, adjustments and repairs usua lly
require special tools, testing devices 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, c rea ting unnecessary risks for you
and your passengers.
I f in doubt about any servicing, have it done
by your authori zed Audi dealer or any othe r
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 procedu res which can be performed on
your veh icle w ith 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, alway s re ad and heed all
WARNINGS ~&. and
~ page 214 .
Con sumer In formation 283
_& WARNING
- Ser ious personal injury may occur as a re­
sult of improperly performed mainte­
nance, ad justments 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 is k personal
inju ry.
- 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 othe r 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 hazardous area.
Never reach into th e area around or
touch the rad iator fan. It is temperature
contro lled and can switch on suddenly -
even when the engine is off. The 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 •
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Cockpit (overview) . . . . . . . . . . . . . . . . . . . . 8
Cold tire inflation pressure ............ 235
Coming home ...... ..... .. .... .. .. .. 51
Compartments ............ .... .. .. .. 64
Compass in the mirror ........... .... . 57
Compliance .. .. .............. ... ... 285
Consumer Information . . . . . . . . . . 134, 282
Consumption (fuel) ........ .. .. .. .. .. 27
Contacting NH TSA ............ ... .. . 134
Convenience key Emergency operation . . . . . . . . . . . . . . . . 80
Indicator light ........... .. .. .. .. .. 81
Starting the engine (START ENGINE ST OP
button) .... .. .............. ... .... 78
Stopping the engine (S TART ENGINE
STOP button) . . . . . . . . . . . . . . . . . . . . . . 79
Switching the ignition on .. .. .. .. .. .. 78
unlocking/locking ........ .. .. .. .. .. 34
Convenience opening/closing
Convertible child safety seats
Convertible locking retractor .
. .. .. .. .. 39
176
Activating .. ................. .. .. . 182
Deactivating . . . . . . . . . . . . . . . . . . . . . . 182
Using to secure a child safety seat l80, 182
Coolant
refer to Engine coolant ....... ... .. . 220
Cool ing mode (automatic climate control
system) . .. .. ................. .. .. .. 72
Cooling mode (manual climate control sys-
tem) .. .. .. .. .. ........ ... .. .. .. .. .. 71
Cooling system Adding coolant ........... .... .. .. . 221
Coolant level checking ..... .. .. .. .. . 221
Coolant temperature indicator .. ... ... 12
Indicator light ... .. ...... .. .. .. .. .. 19
Cornering light . ........... .. .. .. .. .. 50
C rash data recorde r (EDR) 188
Cruise control system Changing speed . . . . . . . . . . . . . . . . . . . . 86
Description ............... ... ... ... 85
Preselecting speed . . . . . . . . . . . . . . . . . . 86
Sw itching off . ........... .. .. .. .. .. 86
switch ing on ............. .... .. .. .. 85
Cup holders . . . . . . . . . . . . . . . . . . . . . . . . . 64
Current consumption . . . . . . . . . . . . . 26, 27
Index 289
D
Data recorder . . . . . . . . . . . . . . . . . 188, 194
Date display . . . . . . . . . . . . . . . . . . . . . . . . 10
Daytime running lights ........... .... . 49
Decla rat ion of compliance
Adaptive cruise control . . . . . . . . . . . . . 28S
Audi side assist .... .............. . 285
Cell phone package . . . . . . . . . . . . . . . . 285
Convenience key .... .............. . 285
Electronic immobilizer .......... .. .. 285
Homelink universal remote control . .. 285
Remote control key . . . . . . . . . . . . . . . . 285
Defective light bulb warning
Indicator light ... .. ................ 24
Defrost ing (windshield)
automat ic climate control system . . . . . 73
manual climate control system ........ 71
DEF (instrument cluster) ... .. .... .... . 11
Deluxe automatic climate control
refer to Climate control system (auto-
ma tic) ...... .. .. .. . ............... 72
Determining correct load limit ....... . 245
Digital compass . .. .. . ............ .. . 57
Dimensions . .. .. .. ................. 280
D imming the rearv iew mirror ..... .. .. . 56
Distance ......... .. ..... ........... 27
Door/rear lid warning 26
Door contact sw itch . . . . . . . . . . . . . . . . . . 52
Driver information system .......... .. . 26
CD/radio display .. .. . .. .. .. .... .... . 26
Door/rear lid warning ............... 26
Driver messages . . . . . . . . . . . . . . . . . . . . 13
Efficiency program . . . . . . . . . . . . . . . . . . 28
Ind icator lights .. .... ......... .... . 13
On-board computer ............ .. .. . 27
Outside temperature display . . . . . . . . . . 26
Service interval display . . . . . . . . . . . . . . 13
Using the mu ltifunction steering wheel . 26
Driver seating position ........... .... 127
Drive select
refer to Audi drive select ............ 107
Driving safely 126
Driving through water .. ......... .. .. 197
Driving time
Dust filter 27
refer to Pollutant
filter ............ .. 70
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292 Index
How often should I check my tire pres -
sures? . ..... ... ............. ..... .
241
How safety belt pretensioners work ... . 144
Hydroplaning ................. .... . 248
I
Ignition
Indicator light . . . . . . . . . . . . . . . . . . . . .
21
switching on and off (with button) ..... 78
Ignition key safety interlock . . . . . . . . . . . 76
Ignition lock mechanical . . . . . . . . . . . . . . . . . . . . . . . . 76
Immobili zer . . . . . . . . . . . . . . . . . . . . . . . .
31
Important things to do before driving .. 126
Improperly worn safety belts ....... .. . 144
Indicator lights ...................... 13
Infant seats . . . . . . . . . . . . . . . . . . . . . . . 17 5
Installing child safety seats Safety belts . . . . . . . . . . . . . . . . . . . . . .
180
Installing the upper tether strap on the
anchorage . .. ............. .. .. .. ...
186
Instrument cluster ......... .... .... .. 10
Instruments .... .... ...... .. .. .. .. .. 10
Adjusting the lighting ......... .. .... 53
Interior lighting .............. ..... .. 52
Intermittent (windshield wipers) . . . . . . . 53
]
Jump-starting
Jump start cables 273
274
K
Key
..... .... ................ ..... .. 31
Checking the number ....... ... .... .. 31
Driver messages (mechanical ignition
key) . .. .. .. .. . .......... .. .. .... ..
81
Driver messages (with convenience key) . 81
Key not recognized . . . . . . . . . . . . . . . . . . 80
Key replacement . . . . . . . . . . . . . . . . . . . 31
Replacing the battery ..... .. .. .. .. .. 33
unlocking/locking . . . . . . . . . . .
33, 34, 35
Key recognition
Climate control system . . . . . . . . . . . . . . 70
Kick-down Automatic transmission ... .. .. .....
115
Knee airbags .... .. ............. .... 163
Description . ..... ................ . 163
How they work ... ................ . 164
Important safety instructions ........ 165
L
Lane assist
refer to Active lane assist ........... . 99
LATCH ... .. .. .. .. ............. .. ..
183
Description .. .. .. .. .............. . 184
Installing a child restraint ........ ... 185
Location . . . . . . . . . . . . . . . . . . . . . . . . . 184
Mounting and releasing the anchorage
hook ..... .... .. .. ........... ....
185
Launch Control-Program (automatic t rans-
m1ss1on) ....... .. .. .............. .
116
Leather care/cleaning ............... . 207
Leaving home .................... .. .
51
LED headlights
All-weather lights ................ .. 49
Left hand drive . . . . . . . . . . . . . . . . . . . . . .
52
Lifting jack . .... ............... .... 266
Lifting vehicle . .. .. .. ........... .. .. 277
Light adaptive light . . . . . . . . . . . . . . . . . . . . . . SO
Adjusting automatic headlights ...... .
51
Coming/Leaving home .......... .... . 51
Fog lights/rear fog light(s) .... ...... . 49
Headl ight flasher .... .......... .. .. .
51
Headlights . . . . . . . . . . . . . . . . . . . . 49, 51
Highway light .... ................ .. SO
Low beams . ..... ................ .. 49
Parking light .................... .. . 49
Switching daytime running lights on and
off . .. ... ... .. .. .. ..... ...... .. .. .
52
Travel mode . . . . . . . . . . . . . . . . . . . . . . . 52
Light/rain sensor
Headlights .... .. ................. . 49
Indicator light ... ............. .....
24
Intermittent (windshield wipers) ..... . 53
Lighting
Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . .
52
Lights
Ambient lighting . . . . . . . . . . . . . . . . . . .
52
Headlight range control system ... ... . 49
Interior/reading . . . . . . . . . . . . . . . . . . . .
52

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Locking/unlock ing
by remote contro l
.............. .. .. 33
with the central locking switch .. .. .. .. 35
with the convenience key . . . . . . . . . . . . . 34
wi th the door lock ........ .... .. .. .. 35
L ong -term memory .............. .. .. 27
L ow beam
I ndicator light . . . . . . . . . . . . . . . . . . . . . 24
Low beams .. .... ............. .. .. .. 49
L ower universal anchorages (Canada) . .. 183
L uggage compartment .. .... .. .. .. .. .. 65
Cargo net .................. .... ... 68
I ncreasing the size . . . . . . . . . . . . . . . . . . 66
L oading .. .. ................. .. .... 65
Reversible mat .............. ... .. .. 69
Socket ..... .. .............. ... .... 64
Storage hooks . . . . . . . . . . . . . . . . . . . . . 68
Stowing luggage ......... .. .. .. .. . 132
Tie-downs . . . . . . . . . . . . . . . . . . . . . . . . . 67
L uggage compartment lid
Centra l locking . . . . . . . . . . . . . . . . . . . . . 38
Emergency release ................. 261
L umbar support . . . . . . . . . . . . . . . . . 60, 61
M
Maintenance ............... ... ... .. 282
Maintenance intervals
with driver information system .. .. .. .. 13
Mirror Digital compass switching on and
off ... 57
dimming ... ................ ... .... 56
Vanity mirror . . . . . . . . . . . . . . . . . . . . . . 53
Mirror compass ............ .... .. .... 57
Mirrors Adjusting the exterior mirrors . .. ... ... 55
Monitoring the Advanced Airbag System 158
Motor stopping (driver messages with mechani-
cal ignition key) .............. .... .. 81
Multifunction steering wheel ..... . ... .. 27
On-board computer ........... ... ... 27
N
Natural leather care/cleaning .. .. .. .. . 207
Navigation system
CD-ROM player . . . . . . . . . . . . . . . . . . . . . 65
Index 293
New tires and wheels
NHTSA 248
Contacting .. .. .. ................. 134
Number of seats . .. ................. 138
Number of vehicle keys ............... 31
0
Occupant protection .. .. ......... .. .. . 95
Occupant seating posi tions ....... .. .. 127
Octane rating ..... ................ . 210
Odometer ........ .. ................ 11
Oil Indicator light . .. ............. .... . 23
also refer to Engine oil . . . . . . . . 217, 218
Oil change interval
with driver information system . . . . . . . . 13
On-Boa rd-D iagnost ic System (OBD)
System indicator light (MIL) ..... .. .. . 29
On-board computer . . . . . . . . . . . . . . . . . . 26
Operation (multifunction steer ing
wheel) .. .. .. .. .... ... .. ..... ..... . 27
On-Board Diagnostic System (OBD)
Data Link Connector (DLC) ......... .. . 30
On Board Diagnostic System (OBD)
E lectronic speed limiter .............. 30
Open ing .... .. .. .. .. .. ........... .. . 31
Fuel filler door ... .. ........... .... 212
Hood ..... .. .. .. .... ............. 215
Luggage compartment lid . . . . . . . . . . . . 38
Windows ......................... 38
Open ing/closing
with the centra l locking sw itch ... .. .. . 35
with the conven ience key ........ .. .. . 34
with the door lock ................ .. 35
Operate your vehicle economically and
minimize pollution ..... ......... .. .. 198
Other equipment (efficiency program) .. . 29
Outside temperature disp lay . . . . . . . . . . . 11
Overview (cockpit) . . . . . . . . . . . . . . . . . . . . 8
p
Paint damage
206
Paint No ..... ..... .. .............. . 279
Parking aid Cleaning sensors/came ra lenses .... .. 205
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296 Index
Selector lever (automatic transmission)
Emergency operation . . . . . . . . . . . . . . . 117
Position ... ................ ..... . 110
Service and disposal
Safety belt p retens ioner ... .. .. .... . 145
Service interval display
with driver informat ion system .. .. .... 13
Setting clock ................ .. .... .. 10
Sett ing date ............ .. .. .. .. .. .. 10
Setting the temperature automatic climate control system ... . . 73
Setting time ............... ... .... .. 10
SETUP (basic setting) ......... .. .... .. 10
Shift paddles (automatic transmission) . 115
Short-term memory ................ .. 27
Side airbags
Description ............ .. .. .. .. .. . 165
H ow they work ........... .. .. .... . 167
Side assist . .. ..... ........... ... .. . 103
Adjust ing the brightness ..... .. .. .. . 105
Cleaning the sensors .......... .. ... 205
Sensor range . ........... .... .... . 104
switch ing on and off .... .. .. .. .. .. . 105
Snow chains ........... .... ... .. .. . 256
All wheel drive ............ ... .. .. . 192
Socket . ..... ................ ..... .. 64
Sources of information about child re-
straints and their use ....... .. .. .. .. . 187
Speed limiter . . . . . . . . . . . . . . . . . . . . . . . 30
Speedometer . . . . . . . . . . . . . . . . . . . . . . . 26
Speed rating letter code ..... .. .. .. .. . 251
Speed warning system ...... .. .. .. .. . . 84
Sport mode . ............... ... .... . 189
Star button .. ... .... ...... .. .. .. .. .. 27
STAR T ENGIN E STOP button (convenience
key) .. .. .. .. .. . .......... .. .. .... .. 78
START ENGINE STOP (convenience key) ... 79
Starting Hill hold . .. ................ ... .. .. 84
Starting from a stop Hill start assist ........... .. .. .... .. 83
Starting (engine)
Automatic start (button) ....... .... . . 78
Automatic start (key) ....... .... ... .. 76
Malfunction (button) . . . . . . . . . . . . . . . . 79
Malfunction (key) . . . . . . . . . . . . . . . . . . . 77 with button
. . . . . . . . . . . . . . . . . . . . . . . 78
with key . ..... .. .. .............. .. 76
Steering Electromechanical steering . . . . . . . 192, 0
Indicator light ... ............. .... . 21
Locking steering (ignition key) ........ 78
Locking the steering (button) . . . . . . . . . 79
locking (mechanica l ignition key) ...... 76
also refer to Electromechanical steer-
ing ... .... .... ................... 192
Steering wheel
adjusting . . . . . . . . . . . . . . . . . . . . . . . . . 76
Buttons ....... .. ............. ..... 27
Multifunction steering wheel .... .. .. . 26
Shift paddles (automatic transmission) 115
Steps for determining correct load limit . 24S
Stopping (engine) with button . . . . . . . . . . . . . . . . . . . . . . . 79
with key .. .... .. ............. .... . 78
Storage compar tments . . . . . . . . . . . 64, 6S
Storage hooks . . . . . . . . . . . . . . . . . . . . . . . 68
S tronic transmission
refer to Automatic transmission .. .. .. 110
Subwoofer .. .. .. .. ............. .. .. 263
Sun visors . ..... .. ................ .. 53
Switch ing daytime running lights on and
off .. .. .. .. .. .. .. .... ...... ... .. .. . 52
Switching the ignition on and off (with
key) ... .... .... ................... . 76
Symbols
refer to Indicator lights . . . . . . . . . . . . . . 13
System indicator light (M IL) . . . . . . . 23, 29
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 10, 11
Technical Data ..... ................ . 279
T echnical modifications ............ .. 284
Temperature display Coolant ....... .. .. ........ ...... .. 10
Outs ide temperature . . . . . . . . . . . . . . . . 11
Tether anchors .. .. ............. .... 185
T ether strap .. .. .. ............. .. .. 185
The first 1 ,000 miles (1,SOO km) and after-
wards ......... ... .. .............. . 196
Tie-downs . . . . . . . . . . . . . . . . . . . . . 67, 133
t ip tron ic (automatic transmission) ..... 115