2015 AUDI A3 CABRIOLET stop start

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~ Press the brake pedal¢ A in Starting the
engine with the
S TAR T ENGINE STOP but­
ton on page 79.
~ Press the l ~ s =T ~A~R=T~E~N-G~I~N~E~s=T~O~P~I button .
~ Hold the maste r key as shown in the illustra­
t ion in the location indicated
y>l) ¢ fig . 81 .
The eng ine will start .
~ If the engine does not automatically start,
press the
I STAR T E NGINE STOP! button
again.
Drive to an authorized Aud i dea ler or author­
i zed Audi Service Fac ility immed iate ly to have
the ma lfunction co rrected .
(D Tips
You can disp lay the message that appears
during an eme rgency by p ressing the
!S TART EN GINE STOPI* button.
Driver messages
Turn off ig nition befor e leaving car . Batter y
is disc har ging
This message appears and a warn ing tone
sounds if yo u ope n the dr ive r's door when the
i gnit ion is switched on. Sw itch the ignition off
so that the batte ry wi ll not discharge.
Pr ess ing start/stop button again will sw it ch
off engin e!
This message appears when you press the
I STAR T ENGIN E STOP !* button while dr iv ing
¢ page 80, Emergency off function.
E ngine start s ystem malfunction. Please
contact Service
The engine automatic start system has a mal ­
function. Drive to an authorized Audi dealer or
author iz ed Audi Serv ice Facility immediately
to have the ma lfunction corrected . To start
t he eng ine, press and hold the
I STAR T ENGIN E STOP ! button .
DJ Key not recognized . See owne r's manual
This message appea rs i f the re is no conven­
ience key inside the vehicle or if the system
does not recognize the key. The convenience key may not be recognized, for examp le, if it is
Dri vin g 81
cove red by an object that disrupts the s ignal
(such as a briefcase), or if the key battery is
weak. E lectronic devices such as ce ll phones
can a lso interfere with the signa l.
T o still be ab le to start or stop the engine, re ­
fer to "Correcting a malfunction"¢
page 80.
Ill Key not in vehi cle?
The Ill in dicator light turns on and th is mes­
sage appears if the co nvenience key was re­
moved from the vehicle when the engi ne was
run ning . If the convenience key is no longer in
the ve hicl e, you cannot switch the igni tion on
o r start the engine once yo u stop it . You also
cannot lock the vehicle from the outside .
Press brake pedal
Th is message appears if you do not p ress the
brake pedal when sta rting the eng ine .
Please eng age N or P
This message appears when starting or stop­
ping the engine if the se lector l ever is not in
the N or P position. The engine will not start/
stop.
Shift to P , othe rwi se vehicle can roll away.
Door s do not lock if le ver is not in P
T h is mess age appears for safety reasons
along wi th a warn ing tone.
It appea rs if the
selector lever for the automatic transm ission
is not in the P pos it ion when switching the ig­
nition off with the
I S TAR T ENGINE STOP !*
button. Shift the se lec tor lever to the P posi­
tion . Otherw ise, the vehicle could roll . You al­
so cannot lock the vehicle us ing the loc king
senso r o n the door hand le or using the con­
venience key.
•

82 Driving
Electromechanical
parking brake
Operating
The electromechanical parking brake replaces
the hand brake.
Fig. 82 Ce nter conso le: Park ing brake
~ Pull the switch@~ fig. 82 to set the park­
ing brake . The . (USA models)/ . (Cana­
da models) indicator lights in the button
and in the instrument cluster display turn
on .
~ To release the parking brake, press the brake
or acce le rator pedal while the ignit ion is
switched on and press the button @at the
same time. The. (USA models)
I. (Can­
ada models) indicator lights in the button
and in the display turn off .
Your veh icle is eq uipped with an electrome­
chanical parking brake. The parking brake is
designed to prevent the vehicle from rolling unintentionally and replaces the hand brake.
I n addition to the normal functions of a tradi­
tional hand brake, the electromechanical parking brake provides various convenience
and safety functions.
When starting from a stop
- T he integral hill start assist helps you when
dr iving by automatically releasing the park­
ing brake ~
page 83, Starting from a
stop .
-When starting on inclines, the hill start as­
sist prevents the vehicle from unintentional­
l y rolling back. The braking force of the
parking brake is not released until sufficient driving force has been built up at the
wheels.
Emergency brake function
An emergency braking functions ensu res that
the vehicle can be slowed down even if the
normal brakes fail~ page 84, Emergency
braking function.
_.&. WARNING
- Do not press the accelerator pedal inad­
vertently when the vehicle is stationary
and the engine is running and a gear is
selected. Otherwise the vehicle will start
to move immediately and could result in
a crash .
- If the power supply fails, the released
parking brake can no longer engage . In
this case, park the vehicle on leve l
g round and secure it by placing these­
lecto r lever in the P position. See an au­
thorized Audi dealer or authorized Audi
Service Facility for assistance.
(D Note
If the. or. (USA models) I. (Cana­
da models) indicator light in the instru­
ment cluster blinks, there is a malfunction
i n the brake system. Refer to the detai led
description of the indicator lights
~page 18.
- If the . (USA models) I. (Cana-
da models) or
Ill indicator light turns
on, there is a malfunction in the parking
brake
c> page 19.
(D Tips
- If the electromechanica l parking brake is
set while the ignition is switched off, the
¢@'A indicator light in the button and in
the instrument cluster dis-
play . (USA models) /. (Cana-
da models) will turn off after a certain
amount of time.
- If driver's door is opened while the igni­
tion is switched on, the park ing brake
sets automatically. This prevents unin­
tended rolling of the vehicle.

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-Occasiona l noises when the parking
brake is set and re leased are norma l and
are not a ca use for concern .
- When the vehicle is parked, the parking
brake goes through a se lf-test cycle at
regular intervals. Any noises associated
with th is are normal.
- If there is a power failure, the parking
brake will not set if it is released, and it
will not release if it is set c::>
,&. See an
authorized Audi dea ler or authorized
Audi Service Facility for assistance .
Parking
"'Press the bra ke peda l to stop the vehicle.
"' Pull the switch@c::>
page 82, fig. 82 to set
t h e parking bra ke.
"' Place the selector lever in the P position .
"'T urn the eng ine
off c::> _& .
"'Turn the steering whee l when parking on in­
clines so that the whee ls will ro ll into the
curb if the vehicle starts moving.
A WARNING
-Always take the vehicle key with you when leaving the veh icle, even for a
short per iod of t ime. This applies partic­
u larly when ch ild ren remain in the vehi ­
cl e. Otherwise chi ld ren could sta rt the
engine, re lease the par king brake or op ­
erate electrical eq uipment such as powe r
w indows, which increases the risk of an
acc ident.
- No one sho uld remain in the vehicle
when it is locked, especia lly children.
Locked doors make it more diffic ult for
emergency workers to get into the vehi­
cle, which puts lives at risk.
Dri vin g 83
Starting from a stop
The start assist function ensures that the
parking brake is released automatically upon starting .
Stopping and setting the parking brake
"' Pull the sw itch @c::> page 82 , fig. 82 to set
the parking brake.
Sta rting and automatically rel easi ng the
parking brake
Req uirement: The dr iver's door must be
locked and the driver's safety belt must be
fastened.
"' When you press the accelerator peda l, the
parking brake is automatically re leased and
your vehicle begins to move.
When stopping at a traffic signal or stopping in city traff ic, the parking brake can be ap­
plied . The vehicle does not have to be held
with the brake pedal. The parking brake elimi­ nates the tendency to creep when a selector
lever pos it io n is engaged. As soon as you
press the accelerato r peda l, the par king b rake
r eleases a utomat ica lly and the vehicle starts
to move.
Starting on slopes
When sta rting on incl ines, the hill start assist
prevents the vehicle from un intent ionally roll­
i ng ba ck. The bra kin g fo rce of the par kin g
brake is not re leased unt il su ff ic ient d riving
f o rce has been built up a t the wheels.
(D Tips
Fo r safety reaso ns, t he pa rking bra ke is re­
l eased automatic ally o nly when the d riv­
er's safety bel t is fa stened an d the driver's
d oor is locked.
•

84 Driving
Emergency braking function
This is used if the conventional brake system
fails or locks up.
... To brake your veh icle in an emergency, pu ll
the @switch ¢
page 82, fig. 82 and hold it
pulled .
... As soon as you releas e the @ switch or ac-
cele rate, the braking p rocess stops.
Pulling and holding the @switch while driv­
in g at a speed of about 2 mph (3 km/h) or
h igher in itiates the emergency b rak ing func­
tion . The vehi cle is braked at all fou r whee ls
by activat ing the brak ing hydrau lics. The brake
performance is s imilar to heavy bra ki ng. ¢.&.
To help prevent act ivat ing the emergency
b rak ing by mis take, an audib le wa rning tone
(b uzzer) sounds when the @switch is pulled.
E me rgency braking s tops as soo n as the @
switch is released or the accelerator peda l is
p ressed.
&_ WARNING
Emergency braking shou ld only be used in
an emergency, when the normal brake
pedal has failed or the brake pedal is ob­
structed . Du ring emergency braking, your
vehicle will brake similar to heavy braking.
ESC and the assoc iated components (ABS,
ASR, EDL) cannot overcome the laws of
physics. In corners and w hen road or
weather conditions are bad, a full brake
application can cause the vehicle to skid or
the rear end to b reak away, which increas­
es the risk of an acc ident.
Hill hold
Applies to vehicles: with H ill Hold
Hill hold makes it easier to start on hills .
Requirement: The driver door must be closed
and the engine must be r unning .
The system is act iva ted when the brake pedal
i s pressed wh ile the veh icle is s ta tionary .
To prevent the vehicle from ro ll ing back when
start ing , the bra ke power is he ld for a br ief moment afte
r releasing the brake pedal. D ur­
ing t his time, you can easi ly begin to move
you r vehicle .
A WARNING
"---
-The intelligent technology of Hi ll Hold
cannot overcome the limitations im­ posed by natural physical laws . The in­
creased comfort offered by H ill Hold
should not cause you to take safety r is ks.
- Hill Hold cannot hold the vehicle in all
h ill sta rt situations (fo r example, if the
g round is slippery o r icy).
- If you do not beg in moving immediately
after releasing the brake pedal, the vehi­
cle could begi n to roll ba ckward unde r
certain ci rc u ms tances. Press the brake
pedal or set the pa rk ing brake immedi­
ately.
- If the eng ine "stalls", press the b ra ke
pedal or set the pa rking brake immedi ­
ately.
- Starting on inclines in stop-and-go t ra f­
fic: To help prevent the vehicle from ro ll­
in g back when starting, press and ho ld
the brake pedal fo r several seconds when
the vehicle is stationary.
(D Tips
You can find o ut if yo ur vehicle is equ ipped
with Hill Hold by checking at an a uthorized
A udi dealer or qualified repair facility.
Speed warning system
Introduction
The speed warning system helps you to stay
under a specified maximum speed .
The speed warning system war ns you if you
are exceeding the maximum speed that you
have set . You will hear a warning tone when
yo ur speed exceeds the stored value by ap­
proximate ly 3 mph (3 km/h). The . (U SA
models)/ . (Canada models) ind icator light
and the message
Speed limit e xceeded! ap­
pear in the instrument cluster display at the
same time. The./. indicator light turns ..,.

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off when the speed decreases below the stor­
ed maximum speed.
Setting a thresho ld is recommended if yo u
wo uld like to be reminded when you reach a
certain maximum speed . Situations where you
may want to do so include d riving in a country
with a general speed limit or if there is a
specified max imum speed for winter tires.
@ Tips
Regard less of the speed warning system,
you shou ld always mon itor your speed us­
ing the speedometer and make sure you
are following the legal speed limit.
Setting the threshold
You con set, change and delete the threshold
in the MMI.
• Se lect : the
IMENU ! button> Car> System s*
control button > Driv er assist an ce > Speed
w arning .
You can set any thresho ld between 20 mph
(30 km/h) and 150 mph (240 km/h). Settings
can each be adjusted in increments of 6 mph
(10 km/h).
Cruise control system
Description
Appl ies to vehicles : with cruise con trol system
The c ruise control system makes i t possible to
d rive at a constant speed starting at lS mph
(20 km/h).
The speed is kept constant by modify ing en­
g ine power or through an a ct ive brake in ter ­
vention.
A WARNING
- Always pay attention to the traffic
around you when the cruise control is in
operation. You are always responsible for
your speed and the distance between
your vehicle and other vehicles.
- For reasons of safety, cruise contro l
should not be used in the c ity, in stop-
Dri vin g 85
and-go traffic, on winding roads and
when road cond itions are poor (such as
ice, fog, gravel, heavy rain and hydro­
plan ing) -you could have an accident.
- Switch the cruise control off temporarily
when dr iv ing in turning lanes, h ighway
e xits or in construction zones.
- Please note that unconsc iously "resting"
your foot on the accelerator pedal p re­
vents t he cr uise control from b raking.
This is due to the control system be ing
over ridden by the dr iver's acceleration .
- If the re is a brake system malfunct ion
such as overheating when the spee d
warn ing system is switched on, the bra k­
ing f unction in the system w il l be deac ti­
vated . The remaining speed warning sys ­
tem fu nctions will remain active, as long
as the
Ill ( U SA mode ls) I l'I (Canada
models) indicator light is on.
(D Tips
- T he cr uise control system is ideal fo r
st retches wit h speed limits. The driver is
responsib le for adhering to the correct
speed.
- The cr uise control remains act ive when
shift ing gears.
- The b ra ke lights turn on when the b rakes
are act ivated.
Switching on
Applies to vehicles: with cruise control system
Fi g. 83 Operat ing lever: Cruise control system
• To swi tch the cruise cont ro l on, p ull the lev­
er into pos it ion @
~fig. 83.
• Dr ive at the speed to be maintained.

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Audi adaptive cruise control
Introduction
App lies to vehicles: with Audi adaptive cruise control
The adaptive cruise control system is a com bi·
nation of speed and distance regulation. It as ­
sists the dr iver by both regulat ing the speed
and maintain ing a distance to the object
ahead, within the abilities of the system. If
the system detects an object, adaptive cru ise
control can brake and acce le rate your ve hicle.
This makes driving more comfortable both on l ong stretches of highway and in stop-and -go
traffic.
General Information
General information
Applies to vehicles: with Audi adaptive cruise co ntrol a nd
Audi pre sense fro nt
Fi g. 84 Front of vehicle: sensor
The genera l information applies to adaptive
cr uise control* and pre sense front *
c::>page95.
The radar se nsor a rea c::>fig. 84 must not be
covered w it h stickers, deposits or any other
obstructions as it may impair the function of
the adaptive cruise contro l and the pre sense
front. For information on cleaning, refer to
,:t 0 0 > l8
c::> page 204. The same applies for any modifi­
cations made in the front area.
The function of the adaptive c ruise control
system and pre sense front is lim ited in some
conditions :
Audi ad apti ve crui se control 8 7
- Objects can only be detected when they are
within the sensor range
c::> page 88,
fig. 87 .
-The system has a limited ability to detect
objects that are a short d istance ahead, off
to the side of your vehicle or moving into
your lane.
- Objects that are difficult to detect such as
motorcycles, veh icles with high ground
clearance or an overhanging load are detect­
ed late or not detected at all.
- When driving through curves
c::>page 88.
-With stationary objects c::> page 88 .
A WARNING
Always pay attent ion to traffic when adap­
tive cruise control is switched on and the
pre sense front is active
c::> page 95. As
the driver, you are s till respons ib le for
start ing and fo r ma inta in ing speed and
d is ta nce to o ther objec ts. The pre sense
front i s used to ass ist yo u. The dr iver must
al ways take ac tion to avo id a col lision . The
driver is always responsible for braking at
the correct time .
- I ncorrect use of the a daptive cr uise con ­
trol can cause collisions, ot her accidents
an d serio us pe rsonal inj ury .
- For safety reasons, do not use adaptive
cru ise contro l when driv ing o n roads with
many curves, when the road s urface is in
poor condition and/or in bad weather
(such as ice, fog, grave l, heavy ra in and
hydroplaning). Using the system unde r
these co ndit ions co uld res ult in a coll i­
sion.
- Sw itch adaptive cru ise cont ro l off tempo·
ra rily whe n driving in tu rni ng lanes, o n
expressway ex its or in construction
zones. T his preven ts the vehicle from ac ­
celerating to the se t speed when in t hese
situations .
- Th e adap tive cruise control system
will
not brake by i tsel f if you pu t your foo t on
the accelera to r pedal. Do ing so can ove r-
ride t he speed and distance reg ulat io n.
~

90 Audi adaptive cruise control
Switching adaptive cruise control off
.,. Push the lever away from you into position
@ until it clicks into p lace. The message
ACC: off appears.
The stored speed in the LED line is erased.
@ Indicator lights
II -adaptive cru ise contro l is switched on . No
objects are detected ahead. The stored speed
is maintained .
•- An object ahead was detected . The adap­
tive cruise control system regulates the speed
and distance to the object ahead and brakes/
accelerates automatically.
r •j-adaptive cruise contro l is switched on . An
object ahead was detected. Your vehicle re­
mains stopped and will not start driving auto­
matica lly.
•- The automatic braking is not enough to
maintain a sufficient distance to an object
ahead. You must intervener:!>
page 93, Re­
quest for driver intervention.
© Instrument cluster display
If adaptive cruise control is not shown in the
instrument cluster disp lay, you can call it up
using the mu ltifunction steering wheel but­
tons
r:!> page 2 7.
Based on the graphics in the disp lay, yo u can
determine if the system is maintaining a dis ­
tance to a vehicle ahead and what that dis­
tance to this vehicle is:
No vehicle -No object ahead was detected .
White vehicle -An object ahead was detected.
Red vehicle -Request for the driver to take ac­
tion
c> page 93 .
Both arrows on the scale© indicate the dis­
tance to the object ahead. No arrow appears
when the vehicle is on an open road and there
is no object ahead.
If an object is detected
ahead, the arrow moves on the scale .
The green zone on the scale indicates the
store distance. For information on changing the d
istance, refer to
i=;, page 92. If the dis­
tance selected is exceeded or not reached, the
arrow moves into the red zone on the scale.
A WARNING
- Using adaptive cru ise control incorrectly
can cause collisions, other accidents and
serious injuries.
- If you press the
~IS-ET~I button when driv­
ing at speeds below 20 mph (30 km/h),
the vehicle accele rates automatically up
to 20 mph (30 km/h), which is the mini­
mum speed that can be set.
(D Tips
-If you switch the ignit ion or the adaptive
cruise control system off, the set speed
is erased for safety reason.
- The Electronic Stabilization Control (ESC)
and Anti-Slip Regulat ion (ASR) both
switch on when the adaptive cruise con­
trol is switched on. ESC and ASR cannot
be switched
off when adaptive cruise
contro l is switched on.
- With the adaptive cruise control activat­
ed the ESC sport mode canno t be activat­
ed.
Changing the speed
App lies to vehicles: wi th Aud i ada ptive c ruise con tro l
0
f
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Fig . 90 Ope rating lever: Changing the speed
.,. To increase or reduce the speed in incre­
ments,
tap the lever up or down.
.,. To increase or decrease the speed quickly,
hold the lever up or down un til the red LED
@ reaches the desired speed i=;, page 89,
fig. 89.

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After each change, the new stored speed ap­
pears briefly in the information line
c::> page 89, fig. 89 @.
Driving in stop-and-go traffic
Appl ies to vehicles: w ith Audi adaptive cruise co ntrol
The adaptive cruise control system assists you
in stop-and-go traffic. If an object that is de­
tected ahead stops, your vehicle will brake
and stay at a stop, within the limits of the sys­
tem.
St arting with ad apti ve cr uise contro l
1l
If you vehicle brakes to a stop because an ob­
ject is detected ahead,
ACC a utom . go ap­
pears briefly in the instrument cluster display
Your veh icle is in automatic start mode .
As long as the message
ACC autom. g o is dis­
played and the object detected ahead starts
to move, your veh icle w ill cont inue d riving
c::, & -
You can activate ACC autom . go again for a
short time by pulling the lever to posit ion @
c::>page91, fig. 91
The start mode ACC autom . go ends when the
brake pedal is pressed.
C rit eria fo r swi tch ing off
The adaptive c ruise co ntrol switches off for
safety reasons when stationary:
- when the dr iver's door is open,
- when the vehicle is stationary fo r more than
3 m inutes,
- when the dr iver's safety belt is not fastened .
A WARNING
If the message ACC autom. go1l appears,
the vehicle continues dr iving, even if there
is an obstacle between your veh icle and
the object ahead . This increases the risk of
an accident.
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This is not available in som e co unt ries. rl
Audi ad apti ve crui se control 91
@ Tips
If adaptive cruise contro l is active and your
vehicle does not start driving even though
the message
ACC autom. go1l appears,
you can start by tapp ing the accelerator
pedal.
- If an obstacle is detected when driving
w ith adaptive cru ise control, the system
w ill request you to beg in driving
c::>page 93. You vehicle will beg in d riv­
ing more slowly. This can also happen in
sit uat io ns where t he re is no visible ob­
s ta cl e.
Interrupting cruise control
App lies to vehicles: wit h Audi ada ptive c ruise control
Fig . 91 Operating lever
Requ irement: The adaptive cruise cont ro l is
switched on .
Ove rriding cruise control
Overriding means exceeding the selected
speed when adaptive cruise control is act ive,
for example when press ing the accelerator
pedal when pass ing.
.. To acce lerate manually, pu ll the lever to­
ward you into position @and hold it there.
The message
ACC: ov errid e appears . Or
.. press the accelerator pedal.
.. To resume cruise contro l, re lease the lever
or take your foot off the accelerator pedal.
Interrupting crui se control while driving
.. Move the lever into position@. The mes­
sage
ACC: standby appears . Or