2015 AUDI RS5 CABRIOLET warning

90 Audi adaptive cruise control and braking guard
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 regulating 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
c:::> page 96.
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 co ntrol
Fig. 103 Front of the vehicle: Position of radar senso r
The area that contains the radar sensor
c:::> fig. 103 must never be cove red by stickers
or other objects or obstructed with dirt, in­
sects, snow or i ce that will interfere with the
adaptive cruise control system and braking
guard. For information on cleaning, refer to
c:::> page 184. The same applies for any modifi­
cations made in the front area . T
he function of the adaptive cruise cont rol
system and braking guard is limited under
some condit ions:
- Objects can only be detected when they are
within sensor range
c:::>page 92, fig . 106.
-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.
- 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
c:::> page 91.
-Stat ionary objects c:::> page 91 .
A WARNING
-
Always pay attention to traffic when adap-
tive cruise contro l is switched on and brak­
ing guard is active. As the driver, you are
still respons ible for starting 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
serio us personal injury.
- Never let the comfor t and convenience
that adaptive cruise control and braking
guard offer distract you from the need to
be alert to traffic conditions and the
need to remain in full control of your ve­
h icle at a ll times,
- Always remember that the adaptive
cru ise contro l and brak ing guard have
lim its -they will not s low 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
mov ing, such as vehicles stopped in a
traffic jam, a stalled or disabled vehicle.
If registered by the radar sensor, vehicles
or obsta cles that are not moving can
trigger a co llision warning and if

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Audi adapt ive crui se c ontrol an d bra kin g guard 91
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
hydroplan ing). Using the system under
these conditions cou ld result in a co lli­
sion.
- Switch adaptive cruise control off tempo­ rar ily when driving in turning lanes, on
expressway exits or in cons truction
zones. This prevents the vehicle from ac­ celerating to the set speed when in these
situations.
- The adaptive cr uise control system wi ll
not brake by itse lf if you p ut your foot on
the accelerator pedal. Doing so can over­
ride the speed and distance regulation .
- When approaching stationary objects
such as stopped traff ic, adaptive cruise
control will not respond and braking
guard w ill have limited function.
- The adaptive cruise control system and
braking guard do not react to people, an­
ima ls, 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 ve hicle so closely that you
cannot stop your vehicle safely. The
adaptive cruise cont ro l cannot slow or
brake the veh icle safely when you follow
ano ther veh icle too closely. Alway s re­
member that the automatic braking
function cannot bring the vehicle to a sudden or emergency stop under these
condit ions.
- To prevent unintended operation, always
switch ACC off when it is not being used.
(D Note
The sensor can be disp laced by impacts or
damage to the bumper, whee l housing and
underbody . That could affect the adaptive cruise control
system and braking g uard.
Have your authorized Audi dea ler or au­
thorized Audi Service Facility chec k their
funct ion.
In curves
App lies to vehicles: with A ud i ada ptive c ruise contro l
F ig . 1 04 Examp le : driv ing into a curve
When driving into a curve ¢ fig. 104 and out
of a curve, the adaptive cru ise contro l may re­
act to a vehicle in the next lane and app ly the
brakes. You can override or prevent the brak ­
ing by pressing the accelerator pedal briefly.
Stationary objects
Applies to vehicles: wit h Audi adapt ive cr uise contro l
F ig . 1 05 Examp le: objec t chang ing la n es and stat ion­
a ry object
The adaptive cruise control system only reacts
to objects that a re mov ing or that the system
has a lready detected as moving . For examp le,
if a ve hicl e@ , which has already been detec t­
ed by the adaptive cru ise con trol , turns or
changes lanes and another stationa ry 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 93
shown in the tachometer @and is also
shown briefly in the display @¢
fig. 108 .
Switching Audi adaptive cruise control off
~ Push the lever away from you into position
@ until it clicks into place. The message
ACC off appears.
@ Indicator lights
II-Adaptive cru ise control is switched on.
No vehicles are detected up ahead. The stored
speed is ma intained.
• -A moving vehicle is detected up ahead.
The adaptive cruise control system regulates
the speed and distance to the moving vehicle
ahead and acce lerates/brakes automatica lly.
• -When automatic braking is not able to
keep enough distance to a previously detected
mov ing vehicle up ahead, you must take con­
trol and brake¢
page 95, Request for driver
intervention.
© Display
If adaptive cruise control is not shown in the
d isplay, you can call it up with the
I RESET I
button ¢ page 23.
Based on the symbols in the d isplay, you can
determine if the system is maintaining a dis­
tance to the vehicle ahead and what that dis­
tance is.
No vehicle -No vehicle ahead was detected.
White vehicle -A vehicle ahead was detected .
Red vehicle -Prompt for the driver to take ac­
tion
~ page 95.
Both arrows on the scale © indicate the dis­
tance to the vehicle ahead . No ar row 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 shows the stored
distance. For information on changing the
~ stored distance, refer to~ page 94. If the
a: ~ distance selected is too close or may soon be-
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come too close, the arrows move into the red
zone on the scale .
A WARNING
Improper use of the adaptive cruise con­
trol can cause collisions, other accidents
and serious personal injuries.
- Pressing the
!SET ! button when driv ing at
speeds below 20 mph (30 km/h), w ill au­
tomatically accelerate the vehicle to
20 mph (30 km/h), which is the mini­
mum speed that can be set.
@ Tips
-If you switch the ignit ion or the adaptive
cruise control off, the set speed is erased
from the system memory.
- The electronic stab ilizat ion control (ESC)
and the anti-slip-regulat ion (ASR) are au­
tom atica lly turned on when the adaptive
cruise control is turned on. Both systems
cannot be turned off if the adaptive
cruise control is turned on .
Changing the speed
Applies to vehicles: with Aud i adapt ive cru ise control
0
f
jJ
0
Fig. 109 Selector lever: ch ang ing the speed
~ To increase or reduce the speed in incre­
ments,
tap the lever up or down.
-0:, N 0 ± ... a)
~ To increase or reduce the speed quickly, hold
the lever up or down until the red LED@
reaches the desired speed ¢
page 92,
fig. 108.
Following any changes, the new stored speed
will be displayed briefly in the display@
~page 92, fig. 108.

94 Audi adaptive cruise control and braking guard
Interrupting cruise control
Applies to vehicles: with Audi adaptive cruise control
Fig. 110 Selector leve r
Requirement : adaptive cruise contro l must be
switched on
¢fig.110 (i).
Overriding cruise control
.. To accelerate ma nually, press the accelera­
tor pedal. The message
ACC override ap­
pears .
.. To resume adaptive cruise control, remove
your foot from the gas pedal. The system re­
turns again to the speed that was saved be­
fore .
.. You can save a new speed at any time by
pressing the
I SETI button ¢ page 11, fig. 4.
Canceling cruise control while driving
.. Move the lever into posit ion @. The mes­
sage
ACC standby appears . Or
.. press the brake pedal.
.. To resume the stored speed, move the lever
into position @.
&_ WARNING
Never resume the stored speed if the
speed is too high for prevailing road, traf­
fic or weather cond itions.
Setting the distance
Applies to vehicles: wit h Audi adapt ive cr uise contro l
Fig. 111 Selector lever : sett ing the distance
.. Tap the switch to display the current set dis­
tance
¢ fig. 111 .
.. To increase or reduce the distance by incre­
ments, tap the switch again to the left or
r ight. The distance between the two vehicles
w ill change in the instrument cluster dis­
play .
When approach ing a moving vehicle up ahead,
the adaptive cruise control system brakes to
match that object's speed and then maintains
the stored dis tance. If the vehicle ahead ac­
ce le rates, adaptive cruise control will also ac­
ce lerate up to the stored speed.
T he higher the speed, the greater t he distance
in yards (meters)
c:::> /1.. Th e Distan ce 3 setting
is recommended .
T he distances provided are specified va lues .
Depending on the driv ing situation and the
how the veh icle ahead is driving, the actual
distance may be more or less than these tar­
get distances.
T he various symbols for the time inc reme nts
appear briefly in the information line @
¢ page 92, fig. 108 when you change the set­
tings.
c::::,_c::::, ___ Distance 1: Th is setting corre-
sponds to a distance of 92 feet/28 meters
when traveling at 62 mph (100 km/h), or a
time interval of 1 second.
c::::, __ c::::, __ Distance 2: This setting corre­
sponds to a distance of 118 feet/36 meters
when traveling at 62 mph (100 km/h), or a
time interval of 1.3 seconds.

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Audi adaptive cruise control and braking guard 95
~--- ~-Di stance 3: This setting corre ­
sponds to a distance of 164 feet/SO meters
when traveling at 62 mph (100 km/h), or a
time interva l of 1.8 seconds .
~---- ~ Distance 4: This setting corre­
sponds to a distance of 210 feet/64 meters
when traveling at 62 mph (100 km/h), or a
time interva l of 2.3 seconds .
A WARNING
Following other vehicles too closely in­
creases the risk of collisions and serious
personal injury.
- Setting short distances to the traffic
ahead reduces the time and distance
available to br ing your vehicle to a safe
stop and ma kes it
even more necessary
to pay close attention to traffic.
- Always obey applicable traffic laws, use
good judgment, and select a safe follow­
ing distance for the traffic, road and
weather conditions .
¢j) Tips
- Distance 3
is set automatically each time
you switch the ignition on.
- Your standa rd settings are automatically
stored and assigned to the remote con­
trol key being used.
Setting the driving program
Applies to vehicles: with Audi adaptive cruise control
Depending on the se lected driv ing program
and distance, driving behavior when accelerat­
ing will
vary from dynamic to comfortab le .
Setting the driving program for vehicles
without Audi drive select*
~ In the radio/MMI*, select: !CAR !funct ion
button >
Adaptive cruise control > Driving
prog .
> comfort, standard or dynamic. Or
~ Select: !CARI function button> Car systems*
control button > Driver assist > Adaptive
cruise control
> Driving program* > Com­
fort, Standard
or Dynamic. Setting the driving mode for
vehicles with
Audi drive select*
Refer to ¢ page 103.
(D Tips
Your settings are automatica lly stored and
assigned to the remote control key being
used.
Request for driver intervention
Applies to vehicles : with Audi adaptive cruise contro l
Fig. 112 Instrument d uste r: request for drive r inte r­
ve ntion
In certain situations, the system will p rompt
you to take action. This could happen, for ex­
amp le, if braking by the adaptive cruise con­
trol system is not enough to maintain enough
distance to the vehicle ahead.
The instrument cluster will warn you about
the danger ¢
fig. 112:
-A red vehicle is pictured in the display.
- The text
DISTANCE! appears in the status
bar.
- The red indicator light . blinks.
- In addition, a warning tone sounds .

96 Audi adaptive cruise control and braking guard
Audi braking guard
Descript ion
Applies to vehicles: with Audi adaptive cru ise control
Fig . 11 3 Instrumen t cl uste r: approach warn ing
Braking guard uses a radar sensor. It also
functions within the limits of the system
when adaptive cruise cont ro l is switched off .
What can Audi braking guard do? When detected i n time, the system ca n assess
situations when a vehicle ahead brakes sud­
denly or if your own veh icle is traveling at a
hi gh speed and approachi ng a ve hicle up
a head that is moving more slowly . Brak ing
guard does not react if i t can not detect the
situation.
The system advises you of various situations :
- The distance warning is given if you are too
close to t he vehicle ahead for a long time . If
the vehicle ahead b rakes sharply, you w ill
not be ab le to avoid a c oll is io n. The indicator
li ght . i n the disp lay comes o n.
- The approach warning is given when a de ­
tected vehicle up ahead in your lane is mov­ i ng much more slowly tha n you are or if it
brakes sha rply . W hen th is w arning is given,
i t may only b e possib le to avoid a collision
b y swerving or braking s harply . Th e in dicator
l igh t. and indic ator in the di sp la y w ill
warn you about the danger
i:> fig . 113. Yo u
will a lso hear a n acoustic signa l.
I f yo u do not reac t fas t enoug h or do not reac t
a t all to the situ ation , Br aking gu ard will i n-
ll This is not ava ilable in some co untri es .
tervene by b rak ing and the message braking
guard intervention will appea r.
- If a coll is ion is imm inent, the sys tem wi ll
fi rst provi de an acute warning by br iefly an d
sharply a pplying the brakes.
- If you do not re act to the acu te w arn ing,
bra king g uard can brake w it hi n the lim its of
the system . T his red uces the vehicle speed
in the event of a collision .
- At speeds un der 20 m ph (3 0 km/h), t he sys ­
tem can initiate a comp lete deceleration
short ly before a co llision
ll .
- If the bra king g uard senses that yo u are not
bra king hard enough w hen a co llision is im ­
m inent, it can inc rease the brak ing force.
Which functions can be controlled?
You can swi tch braki ng gu ard and t he dis­
tance/ap proa ch warn ing on or off in the rad io
o r MM I
r:!;>page 97, Settings in the radio/
MMI.
A WARNING
-Lack of attention can cause collisions, oth­
er accidents and serio us pe rsonal injuries.
The braking gua rd is an assist system and
ca nnot preve nt a collision by itself. The
dr ive r must alway s intervene. Th e dr ive r is
al ways res po nsib le fo r braking a t the co r­
r e ct ti me.
- Always pay clos e attent io n t o traffic,
eve n when the br aking gu ard is swi tched
o n . B e rea dy t o int erve ne and be re ad y to
t ake com plete control w he never nece ssa­
ry. Always keep the safe and legal dis ­
tance between your ve hicle an d veh icles
up ahead.
- Braking gua rd wo rks within limits and
will not res po nd outside the system lim­
its, for examp le w hen approachi ng a
sto pped veh icle o r stationary o bstacle
(end of a traffic jam or ve hicle that has
b roken dow n in t ra ffi c).

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Audi adaptive cru ise control and brakin g guar d 97
-Always remember that the radar sensor
for the braking guard works only within
defined detection and range limits that
may prevent the proper detection of oth­
er vehicles.
- The radar sensor's function and range
can be reduced by rain, snow and heavy
spray. Moving vehicles up ahead may not be promptly detected or may not be de­
tected at al l.
- Reflective surfaces includ ing crash barr i­
ers or tunnel ent ran ces may impair the
function of the radar sensor.
- You can cance l the braking that is initiat­
ed by the system by braking yourself, by
accelerating noticeab ly or by swerving.
- Bra king guard error messages
<> page 97.
-Keep in mind that braking guard can
brake u nexpectedly . Always secure any
ca rgo or objects that you are transport­
i ng to reduce the risk of d amage or in ­
ju ry.
Settings in the radio/MM!
Applies to vehicles: with Audi adaptive cruise co ntrol
~ Se lect: ICARI f u nction button> Car system s*
control button > Dri ver assist > Audi brak­
ing guard .
Or
~ Select : I CARI funct ion button > A udi braking
guard .
System -
Switch Audi braking g uard On and
Off . When you switch the ignition on, the
message
Aud i braking guard off appears if
the system is sw itched off .
Early warning -The distance and app roac h
warn ings in the display can be switched
On /
Off .
(D Tips
-Your settings are automatica lly stored
and ass igned to the remote control key
being used at the t imes the settings are
made. -
If you restrict or sw itch off the ESC, the
braking gua rd also switches itself off
<> page 173.
-Switch braking guard off when you a re
loading the vehicle onto a vehicle carrier,
train, ship or other type of transporta­
tion. This can prevent undesired warn­
ings from the braking guard system.
Messages
App lies to vehicles : wit h Audi ada ptive c ruise contro l
Braking guard : Off
This driver message appears if the system is
turned off via the radio/MMI *. Otherwise, if
the system is turned off, the informat ion ap ­
pears every t ime shortly after the start of the
trip.
The driver message a lso appears if the system
is not ava ilable d ue to a malfunct ion or if the
ESC is not switched
on <> page 173. If this is
the case, the system w ill not prov ide warnings
about a poss ible collision.
Braking guard : Acti vated
T h is dr iver message appears if sharp b rake
pressure was applied due to an acute warning.
•••
Three white dots appear if a sett ing cannot be
selected w ith the operating lever . For exam­
ple, this happens if you want to raise/lower
the speed even thoug h there was no previous ­
l y saved speed.
ACC: S ensor blo cked
This message appears if the sensor v iew is ob­
structed, for examp le by leaves, snow, heavy
spray or d irt. Clean the sensor<>
page 90,
fig. 103 .
ACC: not a vailable
The driver message appears if there is a mal ­
functio n. The adaptive cruise contro l tu rns off .
A chime sounds as a reminder . Have the sys­
tem checked by an authori zed Aud i dea ler or
authorized Aud i Service Fac ility.
ACC: unavailable ll-

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Audi side assist Lane change assistant
Description
Applies to vehicles: with Audi side assist
Fig. 114 Sensor dete ction ra n ge
Fig. 115 Disp la y on the exterio r mirro r
Side assist he lps you mon itor your blind spot
and traffic behind you r veh icle. With in the
limits of the system, it warns you about
vehicles that are coming closer or that are
traveling w ith you within sensor range
(D
c::, fig . 114 : if a lane change is class ified as crit­
ical, the display@ in the exterior mirror
c::>
fig. 115 turns on.
The display in the left exterior mirror provides
assistance when making a lane change to the
le ft, while the display in the right exterior mir­
r or 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 classified as crit ical. The display
in the respective mirror turns on, but is d im.
Audi side assist 99
The 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, side assist
warns you about vehicles that are detected
and classified as critical. The display in the re ­
spective mirror blinks brightly . If this hap­
pens, check traff ic by glanc ing in the rearview
mirror and over your shoulder
c::> A in General
information on page 100 .
@ Tips
-You can adjust the brightness of the dis­
play @c::>
page 101.
General information
Applies to vehicles: with A ud i side ass ist
®
®
©
Fig. 116 D riving s it u atio ns
Fig . 117 Rea r of th e ve hicl e: pos it io n of the senso rs