2015 AUDI RS5 CABRIOLET brake

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-

98 Audi adaptive cruise control and bra king guard
The driver message appears i f, for example,
the brake temperature is too high. The adap­
tive cruise control is temporar ily unavailab le .
A chime sounds as a reminder.
Shift lever position!
The drive r message appears if the selecto r lev­
e r i s shifted to the N position. The adaptive
cr uise con trol is not available while in this po­
sition .
Stabilization control (ESC )
This message appears if the electronic stabili­
zation control (ESC) is taking action to stabi­
lize the vehicle. The adapt ive cruise control
turns off. A chime sounds as a reminde r.
Speed too low
This message appears if the current speed is
too low
to set or to maintain the des ired
speed.
The speed being saved must be at least
20 mph (30 km/h) . The cruise control is
turned off for speeds lower than 12 mph
(20 km/h). The adapt ive cruise control re­
mains turned on for speeds above 95 mph
(150 km/h) (overr ide) . It will stab ilize again at
95 mph (150 km/h) when the driver takes his
foot off of the gas pedal.
Parking brake!
The driver message appears when the park ing
brake is activated. Adaptive cru ise contro l is
turned off . A chime sounds as a reminder.

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Driver and passenger
side footwell
Important safety instructions
Applies to vehicles: with knee airbags
A WARNING
Always make sure that the knee a irbag can
inflate without interference . Objects be ­
tween yourself and the airbag can increase
the risk of inju ry in an acc ident by interfer­
ing w ith the way the a irbag deploys or by
be ing p ush ed into you as the airbag de­
ploys .
- No persons (ch ild ren) or animals should
ride in the footwell in front of the pas­
senger seat. If the airbag deploys, this
can result in serious or fata l injuries .
- No objec ts of any k ind sho uld be car ried
in t he footwell area in front of the driv­
er's or passenger's seat . B ulky objects
(shopping bags, for example) can ham­
per or prevent proper deployment of the
airbag . Small objects can be thrown
through the vehicle if the airbag deploys and injure you o r your passengers .
Pedal area
Pedals
The pedals must always be free to move and
must never be interfered with by a floor mat
or any other object.
M ake sure t hat all pedals move freely witho ut
in te rference and th at nothing prevents them
from returning to the ir origina l positions.
Only use floo r mats that leave the peda l area
free and can be secured w it h floor mat fas ten ­
e rs.
If a b rake circuit fails, increased b rake pedal
travel is req uired to br ing the vehi cle to a full
stop.
Dr iving S afel y 117
A WARNING
Pedals that cannot move free ly can cause
loss of vehicle control and increase the risk
of ser ious inju ry .
- Never p lace any objects in the drive r's
footwell . An ob ject cou ld get into the
pedal area and inte rfe re with pedal func­
tion . In case of sudde n bra ki ng o r an ac­
cident, yo u wo uld not be a ble to brake or
ac celer ate!
- Always ma ke su re tha t no thing can fall
or m ove into the driver's footwel l.
Floor mats on the driver side
Always use floor mats that can be securely
attached to the floor mat fasteners and do
not interfere with the free movement of the
pedals .
" Make s ure that the floor mats are prope rly
secured and cannot move and inte rfe re with
t he ped als~ ,&. .
U se on ly floor mats that leave the pedal area
unobst ructed and that are firmly secu red so
that they cannot slip o ut of posi tion . You ca n
obt ain suitab le floo r mats from yo ur aut ho r­
ized Audi dea ler .
Floor mat fastene rs a re insta lled in your Aud i.
Floor mats used in your vehicle must be at­
tac hed to these fastene rs . Prope rly secur ing
the floor mats will prevent them from sliding
i nto positions that could interfere with the
peda ls o r impa ir safe ope rat io n of yo ur vehicle
i n othe r ways.
A WARNING
Pedals that cannot move free ly can result
in a loss of vehicle control and inc rease the
risk of serious persona l injury.
- Always ma ke s ure that floo r mats a re
properly secu red.
- Never p lace or ins tall floor mats o r other
f loor coverings in the vehicle that cannot
be properly secured in p lace to prevent
them from slipping and interfer ing with
~
•
•

118 Driving Safely
the pedals or the ability to control the
vehicle.
- Never place or install floor mats or other
floor coverings on top of already instal­
led floor mats. Additional floor mats and
other coverings will reduce the size of
the pedal area and interfere with the
pedals.
- Always properly reinstall and secure floor
mats that have been taken out for clean ­
ing.
- Always make sure that objects cannot
fall into the driver footwell while the ve­
hicle is moving. Objects can become
trapped under the brake pedal and accel­
erator pedal causing a loss of vehicle
control.
Stowing luggage
Loading the luggage compartment
All luggage and other objects must be prop­
erly stowed and secured in the luggage com­
portment.
Fig. 133 Safe load pos itio nin g: place heavy objects as
low a nd as fa r forward as possible.
-M N 0 u.
l:l
Loose items in the luggage compartment can
shift suddenly, changing vehicle handling
characteristics . Loose items can also increase
the risk o f serious personal injury in a sudden
vehicle maneuver or in a collision .
... Distribute the load evenly in the luggage
compartment .
... Always place and properly secure heavy
items in the luggage compartment as low
and as far forward as possible
cc> fig . 133 .
... Secure luggage using the tie-downs provid­
ed
c:> poge 67.
... Make sure that the rear seatback is securely
latched in place.
A WARNING ,..__
Improperly stored luggage or other items
can fly through the vehicle causing serious
personal injury in the event of hard brak­
ing or an accident. To help reduce the risk
of serious personal injury:
-Always put objects, for example, luggage
or other heavy items in the luggage com­
partment.
- Always secure objects in the luggage
compartment using the tie-down eyelets
and suitable straps.
A WARNING
Heavy loads will influence the way your ve­
hicle handles. To help reduce the risk of a
loss of control leading to serious personal
injury:
-Always keep in mind when transporting
heavy objects, that a change in the cen­
ter of gravity can also cause changes in
vehicle handling:
- Always distribute the load as evenly as
possible.
- Place heavy objects as far forward in
the luggage compartment as possible.
- Never exceed the Gross Axle Weight Rat­
ing or the Gross Vehicle Weight Rating
specified on the safety compliance stick­
er on the left door jamb. Exceeding per­
missible weight standards can cause the
vehicle to slide and handle differently .
- Please observe information on safe driv­
ing
~ page 112.
A WARNING
To help prevent poisonous exhaust gas
from being drawn into the vehicle, always
keep the rear lid closed while driving.
- Never transport objects larger than
those fitting completely into the luggage
~

1 70 Intelligent technology
Intelligent technology
Notice about data
recorded by the Event
Data Recorder and
vehicle control modules
E ve nt Data Recorder
This vehicle is equipped with an Event Data
Recorder (EDR) . The main purpose of an EDR
is to record, in certain crash or near crash-like
situations, such as an airbag deployment or hitting a road obstacle, data that will assist in
understand ing how a veh icle's systems per­
formed. The EDR is designed to record data
re lated to vehicle dynamics and safety sys­
tems for a short period of time, typically
30 seconds or less. The EDR in this vehicle is
designed to record such data as:
- How various systems in you r vehicle were
operating;
- Whether or not the d river and passenger
safety belts were buckled/fastened;
- How far (if at all) the driver was dep ress ing
the accelerator and/or brake pedal; and,
- How fast the vehicle was traveling.
These data can help provide a better under­
stand ing of the cir cumstances in which crash­
es and injuries occur . NOTE: EDR data are re­
corded by your vehicle only if a non-trivial
crash situation occurs; no data are recorded by
the EDR under normal driving conditions and
no personal data (e.g., name, gender, age,
and crash location) are recorded. However,
other parties, such as law enforcement, cou ld
comb ine the EDR data with the type of per­
sonally identifying data routinely acquired
during a crash investigation.
To read data recorded by an EDR, special
equipment is required, and access to the vehi­
cle or the EDR is needed. In addition to the ve­ hicle manufacturer, other parties, such as law
enforcement, that have the special equip­
ment, can read the information if they have
access to the vehicle or the EDR. Some state
laws restrict the retrieval or down­
loading of data stored by ED Rs installed in a
vehicle for the express purpose of retrieving
data after an accident or crash event without
the owner's consent .
Audi will not access the EDR and/or simi lar
data or g ive it to others -
- un less the vehicle owner (or lessee if the ve­
hicle has been leased) agrees; or
- upon the official request by the police; or
- upon the ord er of a court of law or a govern-
ment agency; or
- for the defense of a lawsuit through the ju­
d icia l discovery p rocess.
- Aud i may also use the data for research
about vehicle operat ion and safety perform­
ance or provide the data to a third party for
research purposes without identifying the
specif ic vehicle or information about the
identity of its owner or lessee and only after
the recorded vehicle data has been ac­
cessed.
Vehicle control modules
You r vehicle is also equipped with a number of
electron ic control modules for various vehicle
systems, such as engine management, emis­
sion contro l, airbags, and safety belts.
T hese electronic control modules record data
during norma l vehicle operation that may be
needed by trained technicians for diagnostic
and repair purposes. The recording capability
of these modu les is limited to data (no sound
is recorded). Only a small amount of data is
actually recorded over a very lim ited period of
t ime, or stored when a system fault is detect­
ed by a contro l modu le. Some of the data
stored may relate to vehicle speed, direction,
or braking, as well as restraint system use and
performance in the event of a crash. Stored
data can also only be read and downloaded
with special equipment that is directly con-
nected to the vehicle. .,..

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@ Tips
Your vehicle may be equipped with Audi
connect. Your use of certain Aud i connect
features req uires wireless serv ices that are
provided by a third party wireless telecom­
municat ions provider. For details regard­
ing how information obtained through
Aud i connect is collected, processed,
transmitted, used, and shared, please see
your contra ct w ith the wire less telecom ­
municat ions provider and the "About A udi
connect" tab in your vehicle's MMI*:
!MENU ! button> Audi connect > About
Audi con nect .
Electronic Stabilization
Control (ESC)
Description
ESC helps to improve road holding and vehicle
dynamics to help reduce the probability of
skidd ing and loss of veh icle control. It works
only when the eng ine is running. ESC detects
certain difficult driv ing situations, including
when the vehicle is beginning to spin (yaw) out of cont ro l and he lps you to get the vehicle
back under control by select ively b rak ing the
wheels, and/or red ucing engine power and
p roviding steering assistance to help hold the
ve hicle on the driver's intended course . The in­
dicator light
DJ in the instrument cluster
blinks when ESC is taking action to help you
control the vehicle.
ESC has limitations.
It is important to remem­
ber that ESC cannot overcome the laws of
phys ics. It will not a lways be able to help out
under all conditions you may come up against.
For example, ESC may not always be able to
help you master situat ions where there is a
sudden change in the coefficient of fr iction of
the road surface. When there is a sect io n of
d ry road that is s udden ly cove red with water,
slush o r snow, ESC canno t perform the same
way it would on the dry su rface.
If the vehicle
hydroplanes (rides on a c ush ion of water in­
stead of the road surface), ESC wi ll not be
ab le to he lp you steer the veh icle because con-
Int ellig ent technolog y 171
tact with the pavement has been interrupted
and the vehicle cannot be braked or steered .
D uring fast corner ing, particular ly on wind ing
roads, ESC cannot always deal as effectively
with difficult dr iv ing s ituations than at lower
speeds. When towing a trailer, ESC is not able
to help you regain control as it would if you
were not tow ing a trailer.
Always adjust your speed and driving style to road, traffic and weather conditions . ESC can­
not override the vehicle's physical lim its, in­
crease the availab le tract ion, or keep a veh icle
o n the road if road departu re is a result of
driver ina ttent io n. Instead , ESC imp roves the
poss ibility of keep ing the vehicle under con­
trol and on the road during extreme maneu­
vers by using the driver's steering i nputs to
help keep the vehicle go ing in the intended di­
rect ion. If you are traveling at a speed that
causes you to run off the road before ESC can
provide any assistance, you may not experi­
ence the benefits of ESC.
ESC is switched on all the time. In certain sit­
uat ions when you need less traction, you can
switch off ASR by pressing the butto n
[ill
~ page 173, fig. 166 or~ page 173,
fig. 167. Be sure to sw itch ASR on aga in when
you no lo nger need less traction.
The following systems are integrated in the
ESC:
Anti-lock bra king sy stem (ABS )
ABS prevents the whee ls from locking up
when brak ing. T he vehicle can st ill be steered
even dur ing hard braking. App ly steady pres­
su re to the brake peda l. Do not pump the ped­
al. A pulsing in the brake pedal ind icates that
the system is helping you to brake the veh icle .
Brake assi st system
The brake ass ist system can decrease braking
distance. It increases brak ing power when the
drive r presses the brake peda l quickly in emer­
gency s ituations. You must press and hold the
brake pedal unti l the s ituation is over. In
vehicles with adaptive c ruise control*, the
brake assis t system is more sensitive if the
•
•

172 Intelligent technology
distance detected to the vehicle ahead is too
smal l.
Anti-slip regulation (ASR )
ASR reduces eng ine power when the drive
wheels begin to spin and adapts the fo rce to
the road condit ions. This makes it eas ier to
start, accelerate and drive up hills .
Electronic differential lock (EDL )
The EDL brakes wheels that are spinn ing and
transfers the d rive powe r to the other wheels.
This f unct ion is available up to abo ut 60 mph
(100 km/h) .
In extreme cases, ED L automat ica lly switches
off to help keep the brake on the braked whee l
from ove rheating. EDL wi ll switch on aga in a u­
tomatically when conditions have returned to
norma l.
Steering recommendation
The ESC helps to stabilize the ve hicle by
changing the steering to rque.
In vehicles with dynam ic steeri ng*, ESC also
helps to stabilize the stee ring in critical s itua­
tions.
Select ive wheel torque control
Selective whee l torque control is used when
driving on curves . The front wheel on the in­
side of the curve or both wheels on the inside
of the curve are braked selective ly as needed.
This a llows mo re prec ise d riving in curves. The
appl icable system may no t activate when d riv­
i ng in wet or snowy condi tions.
A WARNING
- The ESC and its integrated systems can ­
not overcome the laws of physics. This is especia
lly important on slippery o r wet
roads. If the systems begin acting to sta­
bilize your veh icle, you should immedi­
ately change your speed to match the
road and traffic cond itions. Do not let
the increased safety provided by these
systems tempt you to take risks. Do ing
so will in crease the r is k of a loss of vehi­
cle control, collision and serious person al
in juries.
- Always adap t your speed to road, traffi c
and weather conditions . The risk of los ­
ing control of the vehicle increases when
driving too fast, especially through
curves and on slippery or wet roads, and
when dr iv ing too close to vehicles up
ahead. The ESC and its integrated sys­
tems cannot a lways p revent collisions -
there is still a risk of acc idents!
- Always accelerate with special care on
even, smooth s urfaces such as those that
are wet or covered with ice and snow.
T he drive w heels can spin even w ith
these assistance sys tems that cannot al­
ways he lp to re duce the risk of loss of ve ­
h icle control.
(D Tips
- ABS and ASR o nly wo rk correctly when
a ll four wheels are equipped wi th iden ti­
c al tires. D ifferen t tire sizes can lead to a
reduction in engine powe r.
- Yo u may hear noises when the systems
descr ibed are workin g.
-If the ind icator light DJ or Ea (USA
mode ls)/ lCOj t here may be a malfunction
~ page 18,
<=>page 19.