2015 AUDI A3 CABRIOLET engine

30 Driver in formation sy ste m
On-Board Diagnostics
Fig. 15 Lo cat ion of D ata Link Connec tor (D LC)
On-Board Diagnostics monitors the compo­
nents of your emission con trol system. Each
monitored component in your engine system
has been assigned a code . In case of a mal­
function, the component will be ident ified
and the fau lt stored as a code in the control
module memory .
The MIL light may also illuminate if there is a
leak in the on-board fue l vapor recovery sys­
tem.
If the lig ht illuminates after a refuelling ,
stop the veh icle and ma ke sure the fuel filler
cap is proper ly closed
<> page 212.
I n o rder to make an accurate d iagnosis, the
stored data can only be displayed using spe­
cia l diagnostic eq uipment (gener ic s can tool
for OBD).
I n o rder to connect the special diagnostic
equipment, push the p lug i nto the Data Link
Connector (DLC). The DLC is located to the
right of the hood release¢
fig. 15 .
Your author ized A udi dealer or a qualified
service station can interp ret the code and pe r­
form the necessary repa ir .
A WARNING
Do not use the diagnostic con nector for
personal use. Incorrect usage can ca use
ma lf u nctions, which can increase the risk
of a coll ision!
-
Electronic speed limiter*
Applies to vehicles: with electronic speed limiter
Your vehicle may be factory eq uipped w ith
t ir es that are rated fo r a max imum speed of
130 mph (210 km/h) . This is less than the
maximum speed of your vehicle. To reduce the
risk of sudden tire fa ilure and loss of contro l if
the vehicle is operated at excessive speeds,
your vehicle a lso has an electronic speed limit­
er . The elec tronic speed limi ter prevents your
vehicle from going faster than the tire speed rating . For more information ¢
page 248.
If the engine control unit receives faulty veh i­
cle road speed signa ls, the Malfunction Ind i­
cator Lamp (M IL)
¢..fi will illuminate . If this
occurs, contact the nea rest authorized A udi
dealer for assistance .
A WARNING
Always observe the posted speed lim its
a nd adjust your speed to suit prevai ling
road, traffic and weather cond itions. Never
d rive your vehicle faster than the maxi­
mum speed rating of the tires installed. -

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Opening and closing
Central locking
Key set
Fig . 16 Your vehicle key set
The key set contains two remote contro l keys
or convenience keys*. To fold the key out or in,
press the release button
q fig. 16 -arrow-.
Remote control key or convenience key
The convenience key is a vehicle remote con ­
trol key with special functions
q page 34,
Locking and unlocking with the convenience
key and q page 78, Star ting and stopping
the engine (vehicles with a convenience key).
With the remote control key, you can lock and
un lock the vehicle centrally and start the en­
gine.
Number of keys
You can check the number of keys assigned to
your vehicle in the MMI. This allows you to
make sure you have received a ll of the keys
when you purchase a used vehicle. Select: the
I MENU I button > Car> Systems* control but­
ton
> Programmed keys.
Replacing a key
If a key is lost, see an authorized Audi dea ler
or qualified repair facility. Have this key deac­
tivated. It is important to bring all keys with
you.
If a key is lost, you should report it to
your insurance company .
Immobilizer
The immobilizer prevents unauthorized use of
the vehicle . The vehicle may not start if anoth -
Opening and closing 31
er radio device such as a key for another veh i­
cle or a transponder is located on the key ring.
Data in the remote control key or
convenience key
While driving , service and maintenance -rele ­
vant data is continuously stored on your re­
mote control key or convenience key*. Your
Audi serv ice advisor can read out this data and
tell you about the work your vehicle needs.
_& WARNING
- Always take the vehicle key with you
when leaving the vehicle, even for a
short period of time. This applies partic­
ularly when children remain in the vehi­
cle . Otherwise the children could start
the engine or operate electrical equip­
ment such as power windows.
- Do not remove the key from the ignition
lock until the vehicle has come to a com­
plete stop. Otherwise, the steering lock
could engage sudden ly and increase the
risk of an accident.
{i) Tips
The operation of the remote control key
can be temporarily disrupted by interfer­
ence from transmitters in the vicinity of
the veh icle working in the same frequency
range (for example, a cell phone or radio
equipment).
Central locking system description
You can lock and unlock the vehicle centrally .
There are different ways, depending on vehicle
equipment:
- Remote control key
q page 33,
- Lock cylinder on the driver's door
q page 35, or
- Sensors in the front door handles on
veh icles with a convenience key*
q page 34,
- Central locking sw itch inside q page 35.
•

34 Openin g and clo sing
• To open the luggage compartment lid, press
and hold the~ button © for at least one
second .
• To tr igger the alarm , press the red
iPANICI
button @. The vehicle horn and emergency
flashers turn on .
• To turn off the alarm, press the red
IPANICI
button @again .
If the vehicle is unlocked and a door or the luggage compartment lid are not opened
within 45 seconds, the vehicle locks aga in au­
tomatically. This feature prevents the vehicle
from being ac cidentally left un locked over a
l ong period of time. This does not apply if you
p ress the
i""' I button © button for at least one
second.
F o r vehi cles with
sa fet y c entr al loc king (selec­
tive unlocking) ¢
page 37, only the driver's
door and the fue l filler door are opened by
pressing the~ button @ once, and the ent ire
vehicle unlocks wh en the button is pressed
twice.
A WARNING
Read and following all WARNINGS. ¢ Lo_ in
Key set on page 31
@ Tips
- Only use the remote control key or con­
venience key w ith in v iew of the veh icle.
- Do not use the remote control when you
are inside the vehicle. Otherwise, you
could unintentionally lock the veh icle. If
you then tried to start the engine or
open a door, the a la rm would be trig­
gered. If this happens, press the un lock
button@.
- The vehicle can only be locked when the
se lector lever is in the P posit ion .
- Only use the panic function in an emer­
gency .
- For information on add itiona l remote
control key o r convenience key functions,
r efer to ¢
page 39, Convenience open­
ing/closing.
Locking and unlocking with the
convenience key
Applies to vehicles: with convenience key
The front doors and the luggage compart­
ment lid can be unlocked and locked without using the remote control key.
F ig . 20 D river 's doo r: locking the vehicle w ith the co n­
ven ie n ce key
0 0
I
• To unlock the door automatically, grasp the
driver's or front passenger's door handle
¢ fig. 20 .
• To open the door, pull the door hand le.
• To unlock or open the luggage compartment
lid, press the handle in the luggage com­
partment lid
¢ page 38, fig. 24 .
• To lock the veh icle, bring the selector lever
into the P position, close the door and touch
the sensor on the dr iver 's door handle
o ne
time. Do not hold the door handle while do­
ing this.
Only the front doors and luggage compart­
ment lid can be unlocked or locked . The re­
mote control key must be w ith in a range of
abo ut 5 ft (1.5 m) from the door o r the rear
li d. It ma kes no d ifference whethe r the re­
mote control key is in your jacket pocket,
purse or briefcase.
If you ho ld the door hand le wh ile loc king, th is
c a n p revent the lo ck ing f unct ion.
The door cannot be opened for a brief period directly after locking it . Th is allows you the
oppo rtun ity to check that the driver's door is
locked.
The sett ings in the MMI specify if the entire
vehicle or one of the doors is unlocked when
unlocking the vehicle ¢
page 36.

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this could make it possible for unauthor­
ized persons to start the engine and oper­
ate vehicle systems such as the power win­
dows or sunroof . This can increase the risk
of serious injury .
(D Tips
-The vehicle cannot be started if an unau­
thorized key is used. It may not be poss i­
ble to start the vehicle under certain cir­
cumstances, for example if there is an­
other radio module like the key from an­
other vehicle or a transponde r on the
same keychain.
- For an explanation on conformity with
the FCC regu lations in the United States
and the Industry Canada regulations, re­
fer to
c::; page 285.
Safety central locking
Applies to vehicles: with safety central locking
Safety central locking provides the possibility,
to only unlock the driver's door and the fuel
filler door. The rest of the vehicle remains
locked.
Unlocking the driver's door and the fuel
filler door
.. Press the remote contro l key or convenience
key @! but ton
once or turn the key once in
the opening direction .
Unlocking all doors, the luggage
compartment lid and the fuel filler door
.. Press the remote control key or convenience
key @! button
twice within five seconds or
turn the key
twice within five seconds in the
opening direction .
When unlocking just the driver's door, the an­
ti -theft alarm system* is also immediately de­
activated .
In vehicles with an MMI, you can d irectly ad­
just the safety central locking
o page 36 .
Opening and closing 3 7
Front passenger's door emergency
locking
The front passenger's door must be locked
separately if the power locking system fails.
Fig. 23 Open fro nt passen ger' s doo r: emergency lock ­
in g
The driver's door can be locked using the door
lock cylinder
o page 35.
The emergency lock is located on the edge of
the front passenger 's door . It is only visible
when the door is open .
.. Pull the cover cap out of the opening.
.. Insert the key bit into the slit on the inside
and turn the key all the way to the right .
Once the door has been closed, it can no lon­ ger be opened from the outside. The door can
be unlocked and opened from the inside by
pulling the door handle once .

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Opening th e windows
"' Press the sw itch to the fir st sto p and hold i t
until the window reaches the desi red posi ­
tion .
"' Press the switch briefly to the
se cond stop
to automatically open the window .
Clos ing th e windows
"' Pull the swi tch to t he fir st sto p and hold it
until the window reaches the desi red posi ­
tion .
"' Pull the switch briefly to the
sec on d s top to
automatica lly close the window.
P ow er wi nd ow switch es
@ Sw itch c::> fig. 26 for the window in the
driver's door.
@ Sw itch for the window in the front pas-
senger's door.
© Switch for the left rear w indow.
@ Sw itch for the right rear window.
© Centra l switch for opening or clos ing a ll
side windows at the same time
_& WARNING
- Always remove the ignition key when you
leave your vehicle, even for a short peri­
od of time . This applies particularly when
children remain in the vehicle . Otherw ise
the chi ldren could start the engine or op­
erate electrical equ ipment such as power
windows. The power windows continue
to function unt il the driver's door or
front passenger's door has been opened .
- Pay carefu l attent ion when closing the
window.
It could cause injury by pinch­
ing.
- When locking the veh icle from outs ide,
the vehicle must be unoccupied s ince the
windows can no longer be opened in an eme rgency.
(D Tips
After turning the ignition off you can still
open and close the windows for approxi­
mate ly 10 seconds. The powe r windows
are not switc hed off until the dr iver's door
Opening and clo sin g 39
or front passenger's door has been
opened.
· Convenience opening /closing
With the convenience opening/closing func­
tion, you can centrally and easily open the
windows from the outside.
Con ven ience opening
"' Press the Iii button on the remote contro l
key until all windows have reached the de­
sired position or
"' Hold the key in the driver's door lock unt il all
w indows have reached the desired position.
Convenience clo sing
"' Ho ld the key in the driver's door lock in the
lock posit ion unti l all windows are closed .
Convenienc e closing with the convenience
ke y*
"'Touch the sensor* in one of the door handles
until all windows are closed. Do not p lace
your hand in the door handle when do ing
this.
Adju sting the conv enience opening in the
MM I
"'Select: the I MENU I button >Ca r> Sys tem s*
control button > Vehicle setting s > Central
lo cking
> Long-press to open windows
To enable convenience opening of the win-
dows, the
Front windows and Rear window s
functions must be switched On.
_& WARNING
- Never close the w indows carelessly or in
a n uncontrolled manner, because this in­
creases the risk of inju ry.
- For secur ity reasons, the w indows can
only be opened with the remote control
key at a ma ximum d istance of approxi­
mate ly 6 fee t (2 meters) from the vehi­
cle.
- Always watch the windows while they are
clos ing using the loc k cylinder so that no
one is pinched in the window. C losing
•

42 Power top
-Make sure no one will be injured by the
power top supports and other moving
components when opening and closing
the top.
- The headroom in the rear is reduced
when opening and closing the power top. Make sure the rear passengers keep
enough distance from the power top to
reduce the risk of injury.
- When operating the power top, visibility
to the rear is limited . Avoid operating the
top while driving in reverse.
(D Note
-To prevent damage to the power top:
- do not store any objects in the power
top storage compartment.
- make sure there is enough space above
the vehicle when opening or closing
the power top.
- To reduce the risk of damage, make sure
there are no sensitive objects in the pow­
er top storage compartment's range of motion.
@ Tips
- To prevent the battery from draining un­
necessarily, do not open or close the
power top repeatedly when the engine is
switched off.
- A message will appear in the instrument
cluster if there is a malfunction in the
power top c:>
page 43.
-The power top can also be operated
manually temporarily if there is a mal­
function c:>
page 45, Power top emer­
gency operation.
An authorized Audi
dealer or authorized Audi Service Facility
should diagnose and correct the cause of
the malfunction as soon as possible .
- If the vehicle is parked with the power
top open, the vehicle interior is not pro­
tected from damaging weather or unau­
thorized access. Lock any items you leave
behind in the luggage compartment.
Close the power top before leaving the
vehicle. - The
side windows automatically lower
slightly when opening or closing the
power top.
Power top convenience opening and
closing
Fig. 28 Tu rnin g the key to open and close
Convenience opening with the driver door
lock
.. Turn the key once in the driver door lock to
the opening position@c:>
fig. 28.
.. Turn the key to the opening position again
within two seconds and hold it there until
the power top opens completely.
Convenience closing with the driver door
lock
.,. Turn the key once in the driver door lock to
the closing position @
c:> fig. 28.
.,. Turn the key to the closing position again
within two seconds and hold it there until
the power top or all the windows close com­
pletely .
Convenience closing with the convenience
key*
.. Touch the sensor* in one of the door han­
dles. Do not place your hand in the door
handle when doing this.
.. Touch this sensor* a second time
within two
seconds
and keep touching it until the pow­
er top or all windows are closed completely .
Do not place your hand in the door handle
when doing this .
The opening or closing process will stop
im­
mediately
if you release the key or stop touch-
ing the sensor*. ..,.

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,&_ WARNING
Read and follow the im po rt an t sa fety p re ­
cautions i n
c::> & in Opening and closing
the power top on page 41 .
Power top storage compartment
Fig. 2 9 Luggage compar tm en t: powe r to p sto rage
co mpa rt ment lowe red
F ig. 30 Luggage compart men t: power top storage
compartme nt ra ised
The power top storage compa rtment must b e
l owe red to open the power top . To avo id dam­
a ge, make sure that a re no sensi tive o bje cts in
the s tor age compartmen t's range of mo tion .
Raising the power top storage
compartment
"P ress the trim on the hand le in the d irect io n
of the arrow to raise t he power top s torage
compartment
c::> fig. 2 9.
Lowering the power top storage
compartment
" Press the trim on the handle in the direct io n
of the arrow to lower the power top s torage
compartment
c::> fig. 30 .
The power top storage comp artmen t can be
ra ised when the
power top i s closed . This pro-
Power top 43
vides more cargo space in the luggage com ­
partment.
T he
open power top is sto red and pr otec ted in
t he power top s torage compar tment . The
power top storage compa rtment cannot be
raised when the power top is open. Because of
th is, the cargo area in the luggage compart ­
ment is smaller when the powe r top is open
than when it is closed.
Messages
Soft top: pl ease close trunk lid
This message appears in the instrument cl us­
ter display if the luggage compartment is not closed w hen the power top is operated . Close
the luggage compart ment lid.
Soft top : please lower soft top compartment
T his mess age ap pears if the power top stor ­
age compartment is not lowered when ope n­
ing t he power top. Lower the power top stor­
age compartment ¢
page 43.
Soft top: operation not pos sible
T h is message appears w hen t here is a mal­
func tion. T he powe r top can be o pe ra ted man­
u ally
c::> page 4 5 .
Soft top: operation not pos sible at pres ent
If the power top is operated continually for a
long period of time, the overload protect ion
activates for app rox imately 15 to 30 mi nutes .
You can o pen or close the powe r top aga in af­
te r that.
Soft top: operation not possible at present .
Engine must be running
The power top is a utomat ica lly deactivated if
the battery vo ltage is low. Yo u can open or
close t he power top again after start ing the
engine.
Soft top : operation not possible at present .
Outside temperature too low
The powe r top w ill not open when the tem per-
atu re is be low - 15
°C. ~

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Lights and Vision
Exterior Lighting
Switching lights on and off
Fig. 42 Instrument panel: lig ht switc h (example)
The headlights only work when the ignition is
switched on. The headlights turn off automat­ ically when the engine is switched on or when
the ignition is switched off. Only the side­ marker lights stay on .
A warning symbol will appear in the driver in­
formation display if the system is not func­
tioning correctly <=>
page 24.
Light switch ·'ti- ·
Turn the switch¢ fig. 42 to the corresponding
position . When the lights are switched on, the
respective symbol turns on.
0 -lights off. In some countries, the day time
running lights* are turned on and off together
with the ign ition.
- USA models: The daytime running lights
switch on automatically when the ignition is
switched on and the light switch¢
fig. 42 is
in the
O position or the AUTO position (on ly
in daylight). The
Daytime running lights
can be switched on and off in the MMI
¢ page 51 ¢ ,& .
-Canada models: The daytime running lights
switch on automatically when the ignition is
switched on and the light switch¢
fig. 42 is
in the
0, the :Do: or the AUTO position (only
in daylight) ¢
,&.
AUTO* • Automatic headlights switch on and
off depend ing on brightness, for example in
tw ilight, during rain or in tunnels. In vehicles Lights
and Vision 49
with integrated daytime running lights*, ei­
ther the daytime running lights or the head­
li ghts will turn on automat ically, depending
on the amount of light (may vary depending
on the country).
: Do : -Parking lights
iD -Low beam headlights
The following w ill happen in these light
switch positions when you lock the vehicle:
-io -Low beam: the entire exterior lights
sw itch off
- AUTO*: the Coming home* function is
turned on ¢
page 51
Fog lights*/rear fog light(s)
Press the corresponding button¢ fig. 42:
JO· Front fog lights* (not pictured). This but­
ton replaces the button for all-weather
lights
q;!D . When the fog lights are switched
on, the
JO symbol in the button illuminates.
0$ -Rear fog light(s) . When the rear fog lights
are switched on, the
0$ symbol in the button
illuminates.
All-weather lights*
apples to vehicles with LED headlights.
Press the corresponding button
<;?P c;, fig. 42
on the light switch.
~io -All-weather lights . The symbol <;;t,;D in the
button lights up when all-weather lights are
switched on.
In vehicles with all-weather lights, the front
lights are adjusted automatically so that you
are less likely to see glare from your own
headlights, for example when driving on a wet
road .
Headlight range control system
The head light range adjusts automatically
when there is a change in vehicle load and
during braking and accelerating so that the
headlights do not cause glare for oncoming
traff ic.