2014 AUDI A5 CABRIOLET sensor

Audi adaptive cruise control and braking guard 93
Audi adaptive cruise
control and braking
guard
Introduction
App lies to vehicles: with Audi adaptive cruise co ntrol
The adaptive cruise control system assists the
driver by regu lating vehicle speed and helping
to maintain a set distance to the vehicle
ahead, within the limits of the system . If the
system detects a moving vehicle up ahead,
adaptive cruise control can brake and then ac­
celerate your vehicle . This he lps to make driv­
ing more comfortable on long highway
stretches.
The braking guard system can warn you about
an impending collision and initiate braking
maneuvers ¢
page 99.
Adaptive cruise control and braking guard
have technical limitations that you must
know, so please read this section carefully, un­
derstand how the system works and use them properly at all times.
General information
General information
Applies to vehicles: with Audi adaptive cruise control
Fig. 103 Front of the vehicle: Position of radar sensor
The area that contains the radar sensor
¢
fig. 103 must never be covered by stickers
or other objects or obstructed with dirt, in­
sects, snow or ice that will interfere with the
adaptive cruise control system and braking
guard. For information on cleaning, refer to
¢
page 195. The same applies for any modifi­
cations made in the front area . The
function of the adaptive cruise control
system and braking guard is limited under
some cond itions:
- Objects can only be detected when they are
within sensor range
.:!>page 95, fig. 106.
-The system has a limited ability to detect
objects that are a short distance ahead, off
to the side of your vehicle or moving into
your lane.
- Some kinds of vehicles are hard to detect;
for examp le motorcycles, vehicles with high
ground clearance or overhanging loads may
be detected when it is too late or they may
not be detected at all.
- When driving through curves¢
page 94.
-Stationary objects¢ page 94.
A WARNING
-Always pay attention to traffic when adap-
tive cruise control is switched on and brak­ ing guard is active. As the dr iver, you are
still respons ible for start ing and for main­
tain ing speed and distance to other ob­
jects. Braking guard is used to assist you .
The driver must always take action to avoid
a col lision. The driver is always responsible
for braking at the correct time.
- Im proper use of adaptive cruise con trol
can cause collisions, other accidents and
serious personal inj ury .
- Never let the comfort and convenience
that adaptive cruise control and braking
guard offer distract you from the need to
be alert to traffic conditio ns and the
need to remain in full control of your ve­
hicle at all times,
- Always remember that the adaptive
cru ise control and brak ing guard have
limits -they will not slow the vehicle
down or maintain the set distance when
you drive towards an obstacle or some­
thing on or near the road that is not
moving, such as vehicles stopped in a
traffic jam, a stalled or disabled vehicle.
If registered by the radar sensor, vehicles
or obstacles that are not moving can
trigger a collision warning and if .,.

94 Audi adaptive cruise control and braking guard
confirmed by the video camera, an acute
collision warning.
- For safety reasons, do not use adaptive
cruise control when driving on roads with
many curves, when the road surface is in
poor condition and/or in bad weather
(such as ice, fog, gravel, heavy rain and
hydroplaning). Using the system under
these conditions could result in a colli­
sion.
- Switch adaptive cruise control off tempo­
rarily when driving in turning lanes, on
expressway exits or in construction
zones. This prevents the vehicle from ac­
celerating to the set speed when in these
situations.
- The adaptive cruise control system will
not brake by itself if you put your foot on
the accelerator pedal. Doing so can over­
ride the speed and distance regulation.
- When approaching stationary objects
such as stopped traffic, adaptive cruise
control will not respond and braking
guard will have limited function.
- The adaptive cruise control system and
braking guard do not react to people, an­
imals, objects crossing the road or on­
coming objects .
- The function of the radar sensor can be
affected by reflective objects such as
guard rails, the entrance to a tunnel,
heavy rain or ice.
- Never follow a vehicle so closely that you cannot stop your vehicle safely. 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 cannot bring the vehicle to a sudden or emergency stop under these
conditions.
- To prevent unintended operation, always
switch ACC off when it is not being used.
{[) Note
The sensor can be displaced by impacts or
damage to the bumper, wheel housing and
underbody. That could affect the adaptive cruise control system and braking guard.
Have your authorized Audi dealer or au­
thorized Audi Service Facility check their
function.
, In curves
Applies to vehicles: wit h Aud i adapt ive cr uise contro l
Fig. 104 Example: driv ing into a curve
When driving into a curve <=> fig. 104 and out
of a curve, the adaptive cruise control may re­ act to a vehicle in the next lane and apply the
brakes. You can override or prevent the brak­
ing by pressing the accelerator pedal briefly.
Stationary objects
Applies to vehicles: with Aud i adaptive crui se contro l
Fig. 105 Example: object changing lanes a nd station ­
a ry object
The adaptive cruise control system only reacts
to objects that are moving or that the system
has already detected as moving. For example,
if a vehicle @, which has already been detect­
ed by the adaptive cruise control, turns or
changes lanes and another stationary vehicle
@ is located in front of that vehicle, the sys­
tem will not react to the stationary vehicle.

Audi adaptive cruise control and braking guard 95
Audi adaptive cruise
control
Description
A pp lies to vehicles: with Audi adaptive cruise control
Fig. 106 Detect ion range
What can Audi adaptive cruise control do?
The adaptive cruise control works in conjunc­
tion with a radar sensor installed in the front
of the vehicle ¢
page 93, fig . 103, which is
subject to designated sys tem limits
¢
page 95. Stationary objects are disregard­
ed .
On open roads w ith no traffic, adaptive cruise
control wo rks like a regular cruise control sys­
tem. The stored speed is maintained. When
approaching a moving vehicle detected up
ahead, the adaptive cruise control system au ­
tomatically slows down to match that vehi­
cle's speed and then maintains the distance
that the driver previously stored. As soon as
the system does not detect a vehicle up
ahead, adaptive cruise control accelerates back up to the stored speed.
Which functions can be controlled?
When you switch adaptive cruise control on,
you can set the current speed as the "control speed" ¢
page 95, Switching on and off.
When driving, you can stop cruise control
¢
page 97 or change the speed¢ page 96
at any time .
You can a lso set the distance to the object
ahead and set the adaptive cruise control driv­ ing program
¢ page 97.
Switching on and off
Applies to vehicles: with Aud i adap tive crui se contro l
Fig. 107 Selecto r lever : switch ing on/off
Fig . 108 Instru men t cluster: Audi adaptive c ru ise con ­
trol
You can set any speed between 20 mph and
95 mph (30 and 150 km/h).
Ind icator lamps and messages in the instru­
ment cluster disp lay inform you about the cur­
rent system status and settings.
Switching Audi adaptive cruise control on
.. Pull the lever toward you into position (D
¢ fig. 107. ACC standby appears in the in­
strument cluster display.
Setting the speed and activating regulation
.. To set the current speed, press the ISETI but-
ton ¢
page 11, fig. 4. The set speed is ll-

Audi adaptive cruise control and braking guard 99
Audi braking guard
Description
Applies to vehicles: with Audi adaptive cruise control
Fig. 113 Instrument cluste r: approac h warn ing
Braking guard uses a radar sensor. It also
functions within the limits of the system
when adaptive cruise control is switched off.
What can Audi braking guard do?
When detected in time, the system can assess
situations when a vehicle ahead brakes sud­
denly or if your own vehicle is traveling at a high speed and approaching a vehicle up
ahead that is moving more slowly . Braking
gua rd does not react if it cannot detect the
situation .
The system advises you of various situations:
- The distance warning is given if you are too
close to the vehicle ahead for a long time. If
the vehicle ahead brakes sharply, you wi ll
not be able to avoid a collis ion. The indicator
light. in the display comes on .
- The approach warning is given when a de­
tected vehicle up ahead in your lane is mov­
ing much more slowly than you are or if it
brakes sharply . When th is warning is given,
it may only be possible to avoid a collision
by swerving or braking sharply. Th e indicator
light. and indicator in the display will
warn you about the danger
c::> fig. 113. You
will a lso hear an acoustic signa l.
If you do not react fast enough or do not react
at all to the situation, Braking guard will in-
ll This is not ava ilable in som e coun tri es.
tervene by braking and the message braking
guard intervention will appear.
- If a coll ision is imminent , the system will
first provide an acute warning by briefly and
sharply applying the brakes.
- If you do not react to the acute warning,
braking guard can brake within the lim its of
the system. This reduces the vehicle speed
in the event of a collision.
- At speeds unde r 20 mph (30 km/h), the sys­
tem can initiate a comp lete deceleration
shortly before a collision
ll.
- If the braking guard senses that you are not
braking hard enough when a collision is im­
minent, it can increase the braking force .
Which functions can be controlled?
You can switch braking guard and the dis­
tance/approach warning on or off in the radio
or M MI
c::> page 100, Settings in the radio/
MMI.
A WARNING
-Lack of attention can cause collisions, oth-
er accidents and serious personal injuries.
The braking guard is an assist system and
cannot prevent a collision by itself. The
driver must always intervene. The dr iver is
always respons ible for braking at the cor­
r ect time .
- Always pay close attention to traffic,
even when the braking guard is switched
on . Be ready to intervene and be ready to
take comp lete control whenever necessa­
ry. Always keep the safe and legal dis­
tance between your vehicle and vehicles up ahead.
- Braking guard works within limits and
will not respond outside the system lim­
its, for examp le when approaching a
stopped vehicle or stationary obstacle (end of a traffic jam or vehicle that has
broken down in traffic).

100 Audi adaptive cruise control and bra king guard
- Always remember t hat t he radar sens or
fo r the braking guard wo rks only within
defined detection and range limits that
may preve nt the proper detection of oth­
er v eh icles.
- The radar senso r's fu nction and range
can be reduced by rain, s now a nd heavy
spray. Mo ving v ehicl es u p ahead may not
b e promptly det ecte d or may not be de­
te cte d at al l.
- Reflective surfaces in cl udi ng c ras h barri­
ers or tu nnel ent ran ces may impair the
f unc tion of the r ad ar sen sor.
(D Tips
- You can cance l th e braking tha t is initiat­
ed by the system by braking yours elf, by
a cce lerati ng noticeab ly o r by swerving.
- Brak ing guard er ror m essages
¢pag e 100.
- Keep in mi nd that braking gua rd can
brake u nexpect edly . Always secure any
ca rgo or objects that you are tr ansport­
i ng to reduce the risk of d amage or in ­
ju ry.
Settings in the radio/MM!
Appl ies to vehicles: with Audi adaptive cruise control
• Se lect : ICAR !f u nct ion button> Car sy stem s*
control button > Driver assist > Audi brak·
ing guard .
Or
• Se lect : I CAR ! funct io n button >
Audi braking
guard .
System -
Switch Aud i bra king guard On and
Off . When you switc h the ignition on, the
message
Aud i braking guard off appea rs if
the system is sw itched off.
Early warning -The d istance and approach
warn ings in the display can be switched
On /
Off .
(D Tips
-Your settings are automatica lly sto red
and ass igned to the remote control key
being used at the t imes t he settings are
made.
- If you res tric t or sw itch o ff the E SC, the
bra kin g gua rd also switches itse lf off
r=) page 181.
-Switch braking guar d off when you a re
loading the vehicle onto a ve hicle car rier,
train, ship o r other type of t ransporta­
tion. This can prevent undesired warn­ ings from the braking gua rd system .
Messages
Applies to vehicles: wit h Aud i adapt ive c ruise contro l
Braking guard : Off
T his dr iver message a ppears if t he system is
tu rned off via the radio/M M!* . Otherw ise, if
the system is turned off, the in formation ap­
pears every t ime sho rtly after the start of the
trip .
T he driver message a lso appea rs if the system
is not avai lable d ue to a malfunct ion or if the
ESC is not switched on¢
page 181. If this is
t h e case , the system w ill not prov ide warnings
about a poss ible collision.
Braking guard : Activated
T his dr iver mess age a ppears if shar p brake
p ressure was applie d due to a n acute warning.
•••
Three white dots appea r if a sett ing cannot be
selected w ith the operating lev er. For exam­
ple, this happens if you want to raise/lower
t h e speed even thoug h there was no prev ious ­
l y saved speed.
ACC: Sensor blocked
Th is message appears if the senso r view is ob­
structed, for examp le by leaves, snow, heavy
spray or d irt. Clean the sensor¢
page 93,
fig. 103.
ACC: not available
The driver message appears if there is a mal ­
funct ion . The adaptive cru ise cont ro l turns off .
A chime sounds as a reminder . Have the sys ­
tem chec ked by an authori zed Aud i dea le r or
authorized Aud i Service Fac ility.
ACC: unavailable ll-

102 Audi side assist
Audi side assist
Lane change assistant
Description
App lies to vehicles: with Audi side assist
Fig. 114 Sensor detectio n range
Fig. 115 Disp lay on the exterior mirror
Side assist he lps you monitor your blind spot
and traffic behind your veh icle. Within the
limits of the system, it warns you about
vehicles that are coming closer or that are
traveling with you within sensor range
(D
c:> fig . 114: if a lane change is class ified as crit­
ical, the display @ in the exterior mirror
¢fig.115 turnson.
The display in the left exterior mirror provides
assistance when mak ing a lane change to the
le ft, while the display in the right exter ior mir·
ror provides assistance when making a lane
change to the right.
Information stage
As long as you do not activate the turn signal,
side assist
informs you about vehicles that are
detected and class ified as critical. The display
in the respective mirror turns on, but is d im. T
he display remains dim intentionally in the
information stage so that your view toward
the front is not disturbed .
Warning stage
If you activate the turn signal, s ide ass ist
warns you about vehicles that are detected
and class ified 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 c:>
.&. in General
information on page 103.
(D Tips
- You can adjust the brightness of the dis­
play @c:>
page 104.
-Please refer to the instructions for tow·
ing a trailer located in
¢page 103.

General information
Applies to vehicles: with Audi side assist
®
©
Fig . 116 Dr iving situations
Fig. 117 Rear of t he ve hicle: positio n of t he se nsors
., ... N 0 IL
l:l
Side assist functions at speeds above approx i­
mately 19 mph (30 km/h).
@ Vehicl es th at ar e approaching
In certain cases, a vehicle will be classified as
cr itical for a lane change even if it is still
somewhat far away. The fas ter a vehicle ap­
p roaches, the sooner the display in the exteri­
or m irror will t urn on.
@ Vehicles traveling with you
Vehicles traveling w ith you are indicated in the
exterior m irror if they are classified as cr itical
for a lane change. All vehicles detec ted by
side assist are indicated by the time they en­
ter your "blind spot", at the latest.
Audi side assist 103
@ Veh icle s left behind
If you s low ly pass a vehi cle that s ide assist has
detected (the difference in speed between the
vehicle and you r vehicle is less than 9 mph
(15 km/h)), the display in the exterior mirror
turns on as soon as the vehicle enters your blind spot.
T he disp lay will not t urn on if you quickly pass
a vehicle that side assist has detected (the dif­
ference in speed between the veh icle and your
vehicle is greater than 9 mph (15 km/h)).
Functional limitations
The radar senso rs are designed to detect the
left and right adjacent lanes when the road
lanes are the normal width. In certain situa­
tions, the disp lay in the exterior mirror may
turn on even though there is no vehicle locat­
ed in the area that is cr itical for a la ne change.
For example:
- if the lanes are narrow or if your are dr iving
on the edge of your lane.
If this is the case,
the system may have detected the vehicle in
another lane that is
not adjacent to your
current lane .
- if you a re driving through a curve. Side assist
may react to a vehicle that is one lane ove r
from the adjacent lane.
- if side assist reacts to other objects (such as
high or d isp laced guard rails) .
- In poor weather conditions. The side assist
functions are l imited .
Do not cover the radar sensors <=>
fig. 117 with
stickers, depos its, bicycle wheels or other ob­
jects, because this will affect the funct ion. Do
not use s ide ass ist when towing a trailer. For
i nformation on cleaning, refer to<=>
page 195.
_&. WARNING
- Always pay attention to traffic and to t he
area a round your ve hicl e. S ide assist can­
not repla ce a driver's attention. T he driv­
er a lone is always responsible for lane
changes and similar driving mane uvers.

104 Audi side assist
-Improper reliance on the side assist sys­
tem can cause collisions and serious
personal injury:
- Never rely only on side assist when
changing lanes.
- Always check rear view mirrors to make
sure that it is safe to change lanes.
- Side assist cannot detect all vehicles un­
der all conditions- danger of accident!
- Please note that side assist indicates
there are approaching vehicles, or
vehicles in your blind spot, only after
your vehicle has reached a driving speed
of at least 19 mph (30 km/h).
- In certain 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.
(D Note
The sensors can be displaced by impacts or
damage to the bumper, wheel housing and
underbody. This can affect the system.
Have your authorized Audi dealer or au­
thorized Audi Service Facility check their
function.
@ 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.
- For Declaration of Compliance to United
States FCC and Industry Canada regula­
tions¢
page 267.
Activating and deactivating
A pp lies to vehic les : wi th Audi s ide ass ist
Fig. 118 Driver's door: Side ass ist butto n
.. Press the button c> A in General informa­
tion on page 103
to switch the system on/
off. The LED in the button turns on when
side assist is switched on .
Adjusting the display brightness
Applies to vehicles: wit h Audi side ass ist
The signal brightness con be set in the radio
or MM!*.
.. Select: I CAR I function button > Audi side as­
sist.
.. Select: !CARI function button> Car systems*
control button > Driver assist> 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 level 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.