2015 AUDI A3 CABRIOLET sensor

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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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.
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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.
•

96 Audi pre sense
Warnings
App lies to vehicles: with Audi pre sense front or Audi
adaptive cruise control
Fig. 94 Instrument cluster: approac h warning
The system recognizes various dangerous sit­
uations:
- Vehicles with adaptive cruise control : The
distance warning occurs if you drive too
closely to the object ahead for a long period
of t ime. If the object ahead brakes strongly,
you would not be able to avoid a coll ision.
The indicator light . indicates this.
- The
approach warning occurs when an ob­
ject ahead is traveling mo re slowly or brakes
strongly. When this warning occurs, it may only be possible to avoid a collision by
swerving or braking strongly. The message
Audi pre sense. Distance ¢ fig . 94 and a
warning tone will warn you about the dan­ ger. For vehicles with adaptive cruise con­
trol, the. indicator light also turns on.
If you do not react enough or not at all to a
dangerous situation that was detected by the
system, pre sense front provides ass istance by
applying the brakes.
- If a collision is imminent, the system will
first provide an
acute warning by braking
sharply. You will also be made aware of the
danger by the instrument cluster display
¢
fig. 94. F or vehicles with adaptive cruise
control, the. indicator light also turns on.
- If you do not react to the acute warning, pre
sense front can brake with increasing force
within the limits of the system
ll. This re­
duc es the vehicle speed in the event of a col-
l l Thi s is not available in som e coun tries .
lision. The message Audi pre sense -Input
also appears.
- At low driving speeds , pre sense front can
begin complete deceleration shortly before
a collision
ll .
- If pre sense front determines that you are
not braking strongly enough when a colli ­
sion is immin ent, it can increas e the braking
force.
A WARNING
- Pre sense front cannot overcome natural
physical laws. It is a system designed to
assist and it cannot prevent a collision .
The driver must always intervene. The
driver is always responsible for braking
at the correct time. Do not let the in­
creased safety provided tempt you into
taking risks. This could increase your risk
of a collision.
- The system can deploy incorrectly due to
system-specific limits .
- Please note that the sensor does not al­
ways detect all objects . This increases
the risk of a collision.
- Pre sense front does not react to people
or animals or objects that are crossing
the vehicle's path or are difficult to de­
tect ¢
page 87, General Information.
-Reflective objects such as guard rails or
the entrance to a tunnel, heavy rain and
ice can affect the function of the radar
sensor and the system 's ability to detect
a collision risk .
- Lack of attention can lead to collisions,
other accidents and serious injuries. pre
sense front is an assistance system and
cannot prevent a collision by itself . The
driver must always intervene. The driver
is always responsible for braking at the
right time.
- Always pay attention to traffic, even
when pre sense front is switched on. Al-
ways be ready to intervene and take over
complete control of the vehicle whenever
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it is necessary. Always follow traffic laws
regarding mainta ining a safe distance
between your vehicle and veh icles ahead.
- pre sense front works within certain lim­
its and cannot react to situations that
are outside of the system lim its, such as
when approaching a stationary vehicle or
a stationary obstacle (the end of a traffic
jam or a vehicle that has broken down) .
-Always keep in m ind that the radar sen ­
sor for pre sense front only works within defined detection zones, which means
other vehicles may not alw ays be detect­
ed correct ly.
- T he function and range of the radar sen­
sor c an be impaired by rain, snow and
heavy mist. Vehicles ahead may not be
detected right away, o r not detected at
all .
- Reflective surfaces such as guard rails or
entrances to t unnels may impair the
function of the radar sensor .
(D Note
The sensor can be disp laced by impacts or
damage to the bumper, whee l housing and
underbody . The pre sense front sensor can
be damaged by this . Have an authorized
Aud i dea ler or a uthori zed Audi Service Fa­
cility check their function.
(D} Tips
- You can cance l the braking with increas­
ing fo rce that is initiated by the system
by braking yo urself, by accelerating no­
ticeab ly or by swerving.
- For information on dr iver messages
about pre sense, refer to<=> page 97.
- Keep in mind that pre sense front can brake unexpectedly . Always secure any
cargo or objects that you are transport­
i ng to reduce the risk of damage o r in­
Jury .
- Certain pre sense front funct ions switch
off when ESC is sw itched off (sport
mode) or when driving in reverse .
Audi pre sense 97
- T he p re sense front functions are not
available if there is a ma lfunction in the
adaptive cru ise cont ro l* system
¢ page
93 or ¢page 97.
- Keep i n mind t hat pre sense front can
brake abruptly. Always secure cargo or
objects that you transport to reduce the
r isk of damage or injury.
Settings in the Infotainment system
App lies to vehicles: with Aud i pre sense front or Aud i
adapt ive cruise control
.. Select in the MMI: I MENU I button > Ca r >
S y stems *
control button > Dri ver assistance
> Audi pre sense .
Switching the syst em on and off
Audi pre sense (System ): If the system is
switched off, it switches on again automati­
ca lly once the ign ition is switched on aga in.
S ys tem -Switch Audi pre sense on-off. W ith
this, yo u can switch the p rewarning and the
braking intervention from Audi pre sense on
or off .
Prewarning -The distance and approach
warnings can b e switched
on/ off .
(D Tips
-If you res trict or sw itch off the ESC, the
pre sense also sw itches itself off
¢ page
189.
- Switch the pre sense off when you a re
loading the vehicle onto a ve hicle carrier,
train, ship o r other type of transporta­
tion. This can prevent undesired warn­
ings from the pre sense system.
Driver messages
Applies to vehicles: with Aud i pre sense or Aud i adapt ive
cruise control
Audi pre sen se curr entl y un av a ilabl e. No se n­
so r vis ion
T h is message appears if the senso r view is ob­
structed, for exam ple by leaves, snow, heavy
spray or d irt. Clean the sensor¢ page
87,
rg .84 . ~
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98 Audi pre sense
Audi pre sense: off
This message appear s whe n the ESC is swit ch­
e d t o spor t mo de, fo r example ~
page 189.
Audi pre sense : system fault !
This message appears when the pre sense
function is affected. F or example, this could
be caused by a faulty sensor .
If th e message stays on, d rive to yo ur author­
ized A udi dealer or qualified repair facility to
have the ma lfunction co rrected .

Audi side assist Side assist
Description
App lies to vehicles: with Audi side assist
Fig. 99 Se nsor detect ion range
Fig. 10 0 Disp lay on the exterior mirror
Side assist he lps you monito r yo ur blind spot
and traffic behind your veh icle. W ith in the
limits of the system, it warns you about
vehicles that are coming closer or that are
traveling w ith your w it hi n sensor range@
¢
fig . 99: If a lane change is classified as cr iti­
cal, the display @in the exterior m irror turns
on
~ fig . 100.
The display i n the left exterio r mirror provides
assistance when making a lane cha nge to t he
l eft, while the display in the right exter ior mir­
r or p rov ides assistance when making a lane
change to t he righ t.
Information stage
As long as you do not activate the turn signal,
side assist
informs you about ve hicles that are
detected and class ified as crit ica l. The display
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Aud i side assist 103
The display remains d im in the information
stage so that your view toward the front is not
disturbed .
Warning sta ge
If you activate the turn signal, s ide assist
warns you about veh icles tha t are detected
and classified as critical. The display in the re ­
spective mirror blinks brightly . If this hap­
pens, check traffic by glancing in the rearview
mirror and over your shoulder ¢
A in General
information on page 104.
@ Tips
- Yo u can adjust the brightness on of the
display on the rearview mirror
¢page 105.

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-In some situations, the system may not
function or its function may be limited.
For example:
- If vehicles are approaching or being
left behind very quickly. The display
may not turn on in time.
- In poor weather conditions such as
heavy rain, snow or heavy mist.
- On very wide lanes, in tight curves, or if
there is a rise in the road surface.
Vehicles in the adjacent lane may not
be detected because they are outside
of the sensor range.
- Audi side assist cannot detect all vehicles
under all conditions, which can increase
the risk of accidents.
- Please note that side assist only displays approaching vehicles or vehicles in your
blind spot if your vehicle is traveling at
least 19 mph (30 km/h).
- In certain situations, the system may not
work or its function may be limited. For
example:
- The display may not turn on at the
right time if vehicles are approaching
or passing very quickly.
- In poor weather conditions, such as
heavy rain, snow or fog.
- In very wide lanes, in tight curves or
when there are slopes in the roadway,
vehicles in the neighboring lanes may not be detected because they are out­
side of the sensor range.
(D Note
The sensors can be displaced by impacts or damage to the bumper, wheel housing and
underbody. This can affect the system. Have an authorized Audi dealer or author­
ized Audi Service Facility check their func­
tion.
@ Tips
- If the window glass in the driver's door
or front passenger's door has been tint­
ed, the display in the exterior mirror may
be misinterpreted .
Audi side assist 105
-For an explanation on conformity with
the FCC regulations in the United States
and the Industry Canada regulations, re­
fer to
c> page 285.
Switching on and off
Applies to vehicles : wit h Audi s ide ass ist
The system and be switched on and off in the
MMI.
.,. Select: the
I MENU I button >Car> Systems*
control button > Driver assistance > Audi
side assist.
With Off , the system is switched
off.
An activated system will sig nal every time the
ignition is sw itched on by turning the displays
in the exterior mirrors on briefly.
' Adjusting the display brightness
App lies to vehicles : wit h Audi side ass ist
The display brightness can be adjusted in the
MMI.
.,. Select: the I MENU I button >Car> Systems*
control button > Driver assistance > Audi
side assist .
The display brightness adjusts automatically
to the brightness of the surroundings, both in
the information and in the warning stage. In
very dark or very bright surroundings, the dis­
play is already set to the minimum or maxi ­
mum level by the automatic adjustment . In
such cases, you may notice no change when
adjusting the brightness, or the change may
only be noticeable once the surroundings
change.
Adjust the brightness to a level where the dis­
play in the information stage will not disrupt
your view forward.
If you change the bright­
ness, the display in the exterior mirror will
briefly show the brightness leve l in the infor­
mation stage. The brightness of the warning
stage is linked to the brightness in the infor­
mation stage and is adjusted along with the
information stage adjustment .
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