2015 AUDI A3 CABRIOLET cruise control

88 Audi adaptive cruise control
- When approaching stationary objects
such as stopped traff ic, adaptive cruise
control will not respond and pre sense
front will have limited function.
- The adaptive cruise control system and
pre sense front do not react to people,
animals, objects cross ing the road or on­
coming objects.
- The function of the radar sensors can be
affected by reflective objects such as
guard rai ls, the entrance to a tunnel,
heavy rain or ice.
- Never follow a veh icle so closely that you
cannot stop your vehicle safe ly. The
adaptive cruise control cannot slow or
brake the vehicle safely when you follow
another vehicle too closely. Always re­
member that the automatic braking
function ca nnot bring the veh icle to a
sudden or emergency stop under these
condit ions.
- To prevent unintended operation, always
switch ACC off when it is not be ing used.
(D Note
The sensor can be disp laced by impacts o r
damage to the bumper, whee l housing and
underbody . The adaptive cruise contro l
and pre sense front may become impaired
as a result . Have an authorized Audi dealer
or author ized Audi Service Facility check
their function.
In curves
Applies to vehicles: with Audi adaptive cruise control and
Audi pre sense fro nt
Fig. 85 Examp le: driv ing into a curve
When driving into a curve c::> fig. 85 and out of
a curve, the adaptive cruise control may react
to an object in the neighboring lane and apply
the brakes. You can prevent that by pressing
the accelerator pedal briefly .
Stationary objects
Applies to vehicles: with Audi adaptive cruise contro l and
Audi pre sense front
Fig. 86 Example: object chang ing lanes a nd stationary
object
Adaptive crui se control
The adaptive cruis e control system only reacts
to objects that are moving or that the system has a lready detected as moving. For examp le,
if a detected vehicle @tur ns or changes
lanes, the adaptive cruise control will not re­
act to a stopped vehicle @. Press the brake
pedal to slow your vehicle down .
Pre sense front
Pre sense front only reacts to stationary ob­
jects at low speeds.
Adaptive cruise control
Description
Applies to vehicles: with Audi adaptive cruise control
--~.....,
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Fig. 87 Detectio n ran ge

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What can adaptive cruise control do?
The adaptive cruise control system uses rada r
and a video camera. The radar is subject to
designated system limits ¢ page 87.
On open roads w ith no traffic, it functions l ike
a cruise control system . Th e stored speed is
maintained . When approaching an object
ahead and the system detects it, the adaptive
cr uise control system automatically brakes to
match that object's speed and then maintains
the stored distance. As soon as the system
does not detect an object ahead, adaptive
cru ise control accelerates up to the stored
speed .
With in the limits of the system, adaptive
cru ise control can brake in stop-and-go traff ic
until the vehicle is stationary and then begin
driving aga in under certa in conditions
¢ page 91, Driving in stop-and-go traffic.
Which functions can be controlled?
When you switch adaptive cruise control on,
you can set the current speed as the "control speed" ¢ page
89, Switching on/off.
When driving, you can stop cruise control
c::> page 91 or change the speed c::> page 90
at any time .
You can also adjust the following settings:
- Dis ta nee
c::> page 92
- Driving program c::>page
93
- Driving mode c::> page 93
l) Speed limit s depend on the country and the speedom ­
eter .
Audi adaptive cruise control 89
Switching on/off
Applies to vehicles: wit h Aud i adapt ive cr uise contro l
Fig. 88 Oper ating lever: swit c hing on and off
Fig. 89 Instrument cluster: adapt ive cruise control
You can set any speed ll between 20 mph and
95 mph (30 and 150 km/h).
Indicator lights and messages in the instru­
ment cluster disp lay inform you about the cur­
rent situation and settings.
Switching adaptive cruise control on
.,. Pull the lever toward you into posi tion (I)
c::> fig. 88. ACC: standby appears in the in­
strument cluster display.
Saving the speed and activating regulation
.,. To save the current speed, press the ISETI
c::> fig. 88 button. The stored speed is shown
in the tachometer LED line@and appears
briefly in the information line @ c::>fig .
89 .
.,. To activate the regulation while stationary,
you must press the brake pedal. ..,.

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
• 0
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

92 Audi adaptive cruise control
• press the brake peda l.
• To resume the stored speed, move the lever
i nto position @.
Interrupting cruise control when stopped
• Push the lever away from you into position
@. The message ACC : standby appears .
• To resume cru ise control, press the brake
pedal and pull the lever toward you into po­
sition @.
A WARNING
It is dangerous to activate cruise control
and resume the stored speed when the
current road, traffic or weather conditions
do not permit th is . Th is could result in a
crash .
Setting the distance
Applies to vehicles: wit h Audi adapt ive cru ise co ntrol
Fig. 92 Operat ing lever : Sett ing t he dist ance
-
• Tap the swit ch to display the current set dis­
t ance
¢f ig. 92.
• To increase or reduce the distance in incre­
ments, tap the switch again to the right or
left . The distance between the two vehicles
will change in the instrument cluster dis­
play.
When approaching an object detected ahead,
the adaptive cruise con trol system brakes to
match that object's speed and then reg ulates
to the stored distance . If the object detected
ahead acce lerates, adapt ive cruise control will
a lso acce lerate up to the stored speed .
The highe r the speed, the greater the distance
in meters
c::;, & . The Distance 3 setting is rec­
ommended. That is equal to the general rec- ommendation of "hal
f the speed shown on
the speedometer".
T he distances provided are example values.
Depending on the driv ing s ituation, the cur­
rent speed and the way the object detected
ahead is driving, the actual distance may be
more or less than these target distances.
o:::::::, _o:::::::, ___ Distance 1: This setting cor re-
sponds to a distance of 92 feet
I 28 meters
when traveling at 62 mph (100 km/h), or a
t ime distance of 1 second.
o:::::::, __ o:::::::, __ Distance 2: This setting corre ­
sponds to a distance o f 118 feet/ 36 meters
when traveling at 62 mph (100 km/h), or a
t ime distance of 1.3 seconds .
o:::::::, ___ o:::::::,_ Distan ce 3: Thi s sett ing corre-
sponds to a distance of 164 feet/ 50 meters
when traveling at 62 mph (100 km/h), or a
t ime distance of 1.8 seconds.
o:::::::, ____ o:::::::, Distance 4: Thi s sett ing corre-
sponds to a distance of 219 feet/ 67 meters
when traveling at 62 mph (100 km/h), or a
t ime distance of 2.4 seconds.
A WARNING
--
- Driving too close to other vehicles in­
creases the risk of collisions and ser ious
in jur ies.
- Sett ing short distances to vehicles ahead
reduces the distance and time that you
have to stop your vehicle safe ly . This in ­
creases the need for you to pay attention
to traffic.
- Always follow applicable traff ic laws , use
common sense and select a distance to
veh icles ahead that takes the current
traffic , road and weather conditions into
account.
{i) Tips
Distance 3
is set automatically each time
you switch the ignition on.
It you would
lik e to have this distance as a basic setting,
you can have the
adaptive cruise control
menu extended/ enabled from an author ­
ized repair facility .

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Setting the driving program
Applies to vehicles: with Audi adaptive cruise control
A adaptive cruise con trol dr iving program is
adjustable on vehicles witho ut Audi dr ive se­
l ect* .
• Select in the MMI: the
I MENU I button > Car
> Systems * control button > Driver assis­
tance > Adaptive cruise control> Driving
program > Comfort/Standard/Dynamic.
Selecting the driving mode
Applies to vehicles: with Audi adaptive cruise co ntrol
The adaptive cruise contro l driving program is
ad justab le for veh icles w ith Audi drive se lect
using the driving mode.
• Select the desired driving mode
Comfort,
Auto , Dynamic or Individual *
with the knob
Qpage 107 .
Request for driver intervention
Applies to vehicles: with Audi adaptive cruise co ntrol
Fig. 93 Inst rumen t cluster: dr iver inte rve ntion reques t
In some s ituations, the braking from the
adaptive cruise control system is not enough
to maintain enough distance to the object
ahead . In these s ituations, the system will re ­
quest you to take action .
The . indicator light and the graphic in the
display wi ll wa rn yo u about the danger
Q fig. 93. You will a lso hear an aud io signa l.
Press the brake pedal to s low your vehicle
down.
Audi adaptive cruise control 93
Driver messages
Applies to vehicles: wit h Aud i adapt ive c ru ise control
IIJ ACC: unavailable
The system cannot guarantee that it will de­
tect objects correctly and is switched off. The
sensor was moved or is faulty. Drive to your
authorized Aud i dea ler or a uthorized Audi
service facility immediately to have the mal­
function corrected.
fl ACC: currently unavailable. No sensor vi­
sion
fl ACC and Audi pre sense: currently un·
available. No sensor vision No sensor visio n
This message appears if the sensor v iew is ob­
structed, for example by leaves, snow, heavy
spray or dirt. Clean the sensor
Q page 87,
fig. 84.
Ill ACC: currently unavailable . Gradient too
steep
The road exceeds the maximum possible an­
gle for safe adaptive cruise control operat ion.
The adaptive cru ise control cannot be switch­
ed on.
Ill ACC: only available in D, Sor M
Select the D/S or M selector lever position.
Ill ACC: parking brake applied
The adaptive cru ise control system switches
off automatically if the parking b rake is set .
The adaptive cruise control is available again
after re leas ing the parking brake.
Ill ACC : currently unavailable . Stabilization
control input
This message appears if the Electronic Stabili­
zation Control (ESC) is taking action to stab i­
lize the veh icle . In this case, adapt ive cru ise
control switches off automat ica lly.
Ill ACC off: manual control!
This message appears if the vehicle rolls back
when starting on a s light incline, even though
ACC is active. Press the brake pedal to prevent
the vehicle from rolling or starting to move.
1111-

94 Audi adaptive cruise control
IIJ ACC: engine speed
This message appears if the driver has not
shifted up or down in time when the adaptive
cruise control is braking or accelerating, caus­
ing the vehicle to exceed or to not reach the
permitted engine speed. The adaptive cruise
control turns
off. A chime sounds as a remind­
er .
•••
Three white dots appear if a setting cannot be
selected with the operating lever. For exam­
ple, this happens if adaptive cruise control
cannot be activated when stopped because
the driver has not fastened the safety belt.
Door open
Adaptive cruise control cannot be switched on
when the vehicle is stationary and the driver's
door is open .

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Audi pre sense Introduction
Applies to vehicles: with Audi pre se nse basic or Aud i pre
sense front
W ithin the limits of the system, pre sense ba­
sic and pre sense front can initiate steps to
protect vehicle occupants in certa in danger­
ous situations.
Critical driving situat ions can be recognized by
the pre sense front via a network of different
veh icle systems and can take steps to prepare
the vehicle occupants for a potentia l co llision.
The pre sense front wo rks with a radar sensor
and a video camera*.
It also functions within
the limits of the system when adaptive cruise
control* is switched off.
General information
General information
Applies to vehicles: with Audi pre sense front or Audi adaptive cruise control
A WARNING
Also follow the general information found
on
~ page 8 7, General information.
Audi pre sense basic
Description
Applies to vehicles : with Audi pre se nse basic
The function of the pre sense basic is activat­
ed at a speed of 20 mph (30 km/h) or higher.
The following functions can be triggered un­
der certain conditions within the limits of the
system:
- T ensioning of the safety be lts (for example,
during heavy braking) : The front safety belts
have reversible belt pretensioners. If a colli­
s ion does not occur, the safety belts loosen
slight ly and are ready to trigger again .
- Closing the windows (for example, if under­
or oversteering): The windows close until
there is only a small gap open.
Audi pre sense 95
Audi drive select: The dep loyment time is
adapted in dynamic mode.
A WARNING
The pre sense basic cannot overcome natu­ ral physical laws. It is a system designed to
assist and it cannot prevent a collis ion. Do
not let the increased safety provided
tempt you into taking risks. This could in­
crease your r isk of a collis ion.
- The system can deploy incorrectly due to
system-specific limits.
(D Tips
- Certa in pre sense bas ic functions switch
off when ESC is switched off (sport
mode) or when dr iving in reverse.
- The pre sense basic functions may not be
available if there is a ma lfunction in the
ESC system or the airbag control mod­
ule.
- Note that with pre sense bas ic, the rever­
sible safety belt pretensioner on the
front passenger's side deactivates when
t he fron t passenger's airbag is deactivat­
ed.
Audi pre sense front
Description
Applies to vehicles : wit h Audi pre sense front or Audi
adaptive crui se con trol
Pre sense front informs you if the distance to
the vehicle ahead falls below the safe distance
for an extended period of time. It can warn of
a possible collision and initiate braking ma­ neuvers, within the limits of the system.
When detected in time, the system can assess
dangerous situat ions where an object ahead
brakes suddenly or if your own veh icle is trav­
el ing at a high speed and approaching an ob ­
ject that is moving more slow ly . If detection is
not poss ible, then pre sense front does not re­
act.
•