warning AUDI S3 2015 Repair Manual

90 Audi adaptive cruise control
After each change, the new stored speed ap­
pears briefly in the information line
c::> page 88, fig. 80@.
Driving in stop-and-go traffic
Applies to vehicles: with Audi adaptive cruise control
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.
Starting with adaptive cruise control
1
l
If you veh icle brakes to a stop because an ob­
ject is detected ahead, ACC autom. go ap­
pears briefly in the instrument cluster display
Your veh icle is in automat ic start mode.
As long as the message ACC autom. go is dis­
played and the object detected ahead starts
to move, your vehicle w ill cont inue driving
c::> & .
You can activate ACC autom. go again for a
short time by pulling the lever to posit ion @
r::;, page 90, fig . 82
The start mode ACC autom. go ends when the
brake pedal is pressed .
Criteria for switching off
The adaptive c ruise control switches off for
safety reasons when stationary:
- when the dr iver's door is open,
- when the veh icle is stationary for more than
3 minutes,
- when the dr iver's safety be lt is not fastened .
,&. WARNING
If the message ACC autom . go1l appears,
the vehicle continues driving, even if there
is an obstacle between your vehicle and
the object ahead. This increases the risk of
an accident.
ll This is not available in some co un tri es .
(D Tips
If adaptive cruise contro l is active and your
vehicle does not start driving even though
the message ACC autom. go
1l 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 begin driving
r::;, page 92 . You vehicle will beg in driv­
ing more slowly. This can also happen in
situations where there is no visible ob­
stacle.
Interrupting cruise control
Applies to vehicles: wit h Aud i adapt ive c ru ise control
Fig. 82 Operating leve r
Requirement: The adaptive cruise cont ro l is
switched on.
Overriding cruise control
Overriding means exceeding the selected
speed when adaptive cruise control is active,
for example when press ing the accelerator
peda l when pass ing.
.. To accelerate manually, pull the lever to­
ward you into position @and hold it there.
The message ACC: override appears. Or
.. press the acce lerator pedal.
.. To resume cruise control, release the lever
or take your foot off the accelerator pedal.
Interrupting cruise control while driving
.. Move the lever into position @. The mes­
sage ACC: standby appears. Or

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.. press the brake peda l.
.. To resume the stored speed, move the lever
into position @.
Inte rrupting crui se contr ol wh en stopped
.. Push the lever away from you into position
@ . The message ACC : s ta ndb y appea rs .
.. To resume cru ise control, press the brake
pedal and pull the lever toward you into po ­
sit ion @.
A WARNING
It is dangerous to activate cru ise contro l
and resume the stored speed when the
current road, traffic or weather conditions
do not permit th is . This could result in a
crash.
Setting the distance
Applies to vehicles: with Audi adaptive cruise control
Fig. 83 O perat ing lever : setting the d istance
.. Tap the switch to display the current set dis­
tance¢
fig. 83.
.,. To increase or reduce the distance in incre ­
ments, tap the switch again to the right o r
left . T he d istance between the two vehicles
will change in the instr ument cluster d is­
play.
When approaching an object detected ahead ,
the adaptive cru ise cont ro l system brakes to
matc h that object's speed and then regulates
to the stored distance . If the object detected
ahead acce lerates, adaptive cru ise control will
also acce lerate up to the stored speed .
The highe r the speed, the greater the distance
in meters ¢.&. . The
Dist ance 3 sett ing is rec­
ommended. That is equal to the general rec -
Audi adapti ve crui se control 91
ommendation of "hal f the speed shown on
the speedometer" .
T he distances provided are examp le values.
Depend ing on the dr iv ing situation, the cur ­
rent speed and the way the object detected
ahead is driving, the act ual distance may be
more or less than these target d istances .
c::;, _c::::, ___ Distance 1 : Th is sett ing corre-
sponds to a distance o f 92 feet/ 28 meters
when traveling at 62 mph ( 100 km/h), or a
time distance of 1 second.
c::;, __ c::::, __ Distanc e 2: This setting corre­
sponds to a distance o f 118 feet/ 36 meters
when traveling at 62 mph ( 100 km/h), or a
time distance of 1.3 seconds .
c::;, ___ c::;,_ Dista n ce 3 : This sett ing corre-
sponds to a distance o f 164 feet/ 50 meters
when traveling at 62 mph ( 100 km/h), or a
t ime distance of 1.8 seconds.
c::;, ____ c::::, Dista n ce 4: T his sett ing corre-
sponds to a distance o f 219 feet/ 67 meters
when traveling at 62 mph ( 100 km/h), or a
time distance of 2.4 seconds.
A WARNING
-
- Driving too close to other vehicles in­
creases the risk of co llisions and ser ious
inju ries .
- Sett ing s hort dista nces to veh icles ahead
reduces the distance and time that you
have to stop your vehicle safe ly. This in­
creases the need for yo u 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 cur ren t
traffic , ro ad and weather conditions into
acco unt .
@ Tips
Distance 3 is set automatically each time
you swi tch the ignit ion on.
It yo u wou ld
l ik e to have th is distance as a b asic setti ng,
you can have the
adaptive crui se cont rol
menu extended/ enabled from an author ­
i zed repair fac ility .

94 Audi pre sen se
Audi pre sense
Introduction
Applies to vehicles: with Audi pre sense basic or Audi pre
sense front
Within the limits of the system, pre sense ba­
sic and pre sense front can initiate steps to
protect vehicle occupants in certain danger ­
ous situations.
Critical driving situations can be recognized by
the pre sense front v ia a network of differe nt
vehicle systems and can take steps to prepare
the vehicle occupants for a potentia l collision.
The pre sense front works with a radar sensor
and a video came ra* .
It also functions within
the limits of the system when adapt ive cruise
control * is switched off.
General information
General information
App lies to vehicles: with Audi pre sense front or Audi
adaptive cruise control
A WARNING
Also follow the general information found
on
~ page 86, General information.
Audi pre sense basic
Descript ion
Applies to vehicles: with Audi pre sense 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 reversib le be lt pretensioners. If a colli­
sion does not occur, the safety belts loosen
s light ly and are ready to trigger again .
- Closing the windows and the sunroof* (for
example, when over- or understeering): The
windows and the sunroof" close until there is only a small gap open. Audi drive select:
The dep loyment time is
adapted in dynamic mode.
A WARNING
-The pre sense basic cannot overcome natu- ral phys ica l laws.
It is a system designed to
assist and it cannot prevent a coll is 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 bas ic functions may not be
available if there is a ma lfunction in the
ESC system or the a irbag control mod­
ule .
- Note that with pre sense bas ic, the rever ­
sible safety belt pretensioner on the
front passenger 's side deactivates when
the front passenger's a irbag is deactivat­
ed.
Audi pre sense front
Description
Applies to vehicles: with Audi pre sense front or Audi
adapt ive cru ise control
Pre sense front informs yo u 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
eling at a high speed and approaching an ob ­
ject that is moving more slow ly . If detection is
not possible, then p re sense fro nt does not re ­
act.

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Warnings
Applies to vehicles: with Audi pre sense fro nt or Audi
adaptive cruise control
Fig . 85 In strum ent cluste r: approac h warnin g
The system recognizes various dangerous sit­
uat ions :
- Vehicles with adaptive cruise control: The
distance warning occurs if you drive too
closely to the object ahead for a long period
of time.
If the ob ject ahead brakes strongly,
you would not be able to avo id a coll ision.
T he indicato r light . indicates this.
- The
approach warning occurs when an ob­
ject ahead is traveling mo re slowly o r brake s
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 c::> fig . 85 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 s ituation that was detected by the
system, pre sense front provides assistance 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
c::> fig. 85. For 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
l)_ This re­
duces the vehicle sp eed in th e event of a col-
....,
"' ll Thi s is no t a vailable in some coun tries . rl
Audi pre sense 95
lision . The message Audi pre sense -Input
also app ears .
- At low driving speeds , pre sense front can
begin complete deceleration shortly before
a collision
l) .
-If pre sense front determines that you are
not braking strongly enough when a colli­
sion is imminent, it can increase 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 t ime. 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
c::> page 86 , 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
comp lete control of the vehicle whenever .,.

96 Audi pre sen se
it is necessary. A lways follow traffic laws
regarding mainta ining a safe distance
between your vehicle and vehicles 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 i n m ind that the radar sen­
sor fo r pre sense front only works within
defined detection zones, which mea ns
other vehicles may not always be dete ct­
ed correct ly.
- T he function and range of the radar sen­
sor can be impaired by rain, snow and
heavy mist. Veh icles ahead may not be
detected right away, or not detected at
all.
- Reflective surfaces such as g uard rails or
entrances to t unnels may impair the
function of the radar sensor .
{[) Note
The senso r 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 your authorized
Aud i dea ler or authorized service facility
check the ir function.
(D Tips
- You can cance l the braking w ith increas­
ing force that is initiated by the system
by braking yourself, by accelerating no­
ticeab ly or by swerving.
- For information on dr iver messages
about pre sense, refer to¢ page 96.
- Keep in mind that pre sense can brake unexpectedly. Always secure any cargo or
objects that you are transporting to re­
duce the r isk of damage or injury .
- Certain pre sense front funct ions sw itch
off when ESC is sw itched off (sport
mode) or when drivi ng in reve rse .
- The pre sense front funct ions are not
available if there is a malfunction in the adaptive cru
ise cont ro l* system
¢ page
92 or ¢ page 96.
- Keep in mind that pre sense front can
brake abruptly. Always sec ure cargo or
objects that you transport to red uce the
r isk of damage or injury.
Settings in the Infotainment system
Applies to vehicles: with Aud i pre sense front or Aud i
adaptive crui se con trol
.,. Select in the MM I: I MENU I button > Car >
Systems * control button > Drive r assi st a nce
> Audi pre sense .
Switching the system on and off
Audi pre sense (Sys tem): If the system is
switched off, it switches on again automati ­
ca lly once the ignition is switched on aga in.
S ys te m -Swit ch A udi pre sense o n-off . With
th is, yo u can switch the p rewarning and the
braking intervention from Audi pre sense on
or off.
Prewarning -The distance and app roach
warnings can be switched
o n/off .
(D Tips
-If you restrict or sw itch off the ESC, the
pre sense also sw itches i tself off
¢page
190.
- Switch the p re sense off when you a re
loading the vehicle onto a veh icle carrier,
t rain, ship o r othe r type of transporta­
tion . This can prevent undesired warn ­
ings from the pre sense system .
Driver messages
Applies to vehicles: wit h Aud i pre sense or Aud i adapt ive
cruise control
Aud i pr e se nse curr ently un availabl e. No sen­
so r vi sion
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
86,
fig. 75.
Audi pre sense: off

98 Audi acti ve lane a ssi st
Audi active lane assist
Lane assist
Description
App lies to vehicles: with Audi active lane assist
Active lane ass ist detects lane ma rker lines
within t he lim its of the system using a camera
in the w indshield . If you a re approaching a de­
tected lane marker line and it appears likely
that you wi ll leave the lane, the system will
warn you with corrective steering. You can
ove rride this steering at any time . If you pass
over a line, the steering wheel will vibrate lightly. In order for th is warning v ibration to
occur, it must first be switched on in the MMI.
Active lane ass ist is operable when the lane
marker line is detected on at least one side of
the vehicle .
The system will not warn you before cross ing
a lane marker Line if you have activated the
turn signal. In t his case, it assumes that you
a re changing lanes intent ionally.
The system is designed for driv ing on express ­
ways and h ighways and therefore only acti­
vates at speeds above app roximately 40 mp h
(65 km/h).
A WARNING
- The sys tem wa rns the d river that the ve­
hicle is leaving the lane using corrective
steering . The driver is always responsible
for keeping the vehicle within the lane .
- The system can help you keep the vehicle
in the lane, but it does not drive by itself.
Always keep your hands on the steering
wheel.
- Co rrective stee ring may not occur in cer­
tain situations, such as d uring heavy
braking.
- There may be cases where the camera
does not recognize all lane marker lines.
Corrective steering can only take p lace
on the side of the veh icle where lane
marker lines are detected .
l) Th is func tion is not available in a ll co untries.
- Other road structures or objects cou ld
possibly be identified un intent ionally as
lane marker lines. As a result, correct ive
steer ing may be unexpected or may not
occ ur.
- The camera view can be restricted, for
example by vehicles driving ahead or by
ra in, snow , heavy spray light shining into
the camera or by dirt on the window . T his
can result in act ive lane assist not detect­
ing the lane marke r lines or detec ting
them incorrect ly .
- I n certain sit uat ions where visibili ty is
low, the vehicle may swi tch from "early"
to "late" corrective steering
l).
-Unde r ce rtain condi tions such as ruts in
the road, an incl ined roadway or c ross­
winds, the corrective steering alone may not be enough to keep the vehicle in the
middle of the lane.
- For safety reasons, active lane assist
must not be used when the re a re poor
road and/or weather conditions such as
slippery roads, fog, grave l, heavy rain,
snow and the potential for hydroplaning .
Using act ive lane assist under these con­
d itions may increase the risk of a c rash .

100 Audi active lane assist
@ So lid lines: act ive la ne assist is sw itch-
ed on and ready to provide wa rn in gs on
t he s ide th at is indica ted.
@ B linking line ( left or right): active lane
assist is warning you by a vibration in
the stee ring wheel that you a re l eaving
th e l ane .
® Unfilled line(s) : lane ass ist is activated,
but not ready to g ive warn ing
N o lines: act ive lane assis t is switche d
off .
Multicolor display
Re fer to ¢ fig. 89
@ Solid white lines : active lane assist is
switched on and ready to provide warn-
ings on the side that is ind icated.
@ Red lin e ( left or r igh t): active lane a s-
sis t is w arning you by a vibr ation in t he
steering whee l that you are leav ing the
lane.
® Solid gray lines: lan e ass ist is activated,
but not ready to give warn ing
N o lines: act ive lane assist is switched
off.
Mes sages in the in strument clu ster
display
If t he active lane ass ist has a malfunction, the
B i ndicato r light in the instrument cluste r
di sp lay tur ns
off a nd one of the followi ng
messag es appears:
Audi active lane ass ist: currently not availa ­
ble . No camera view
This message appears if the camera is unab le
to detect t he lines . This could happen if :
- The came ra field of view ¢
page 99, fig. 87
is dir ty o r covered i n ice. Clean t he a rea on
t h e windshie ld.
- The came ra field of view is fogged over . Wait
u nti l the fog has cleared before switching
the active lane ass ist on again.
l ) Thi s fun ctio n is not ava ilable in all c ountries.
- The system has bee n una ble to detect the
lanes for an exte nded period of t ime due to
road conditions . Switch the active lane as ­
sist bac k on when the lines are mo re v is ible.
Audi active lane assi st: currently unavailable
T he re is a te mporary a ctive lane assist mal­
f un ction. T ry swi tching the ac tive lane assist
o n a gain later.
Audi active lane assi st: system fault!
Drive to an authorized A udi dealer or author­
ized Audi Se rv ice Facility immediately to have
the malfunc tion cor rected .
B Audi active lane assist: Please continue
steering vehicle!
T his messa ge ap pears if yo u are not stee ring
by yourself . If th is is t he case, act ive lane as ­
s ist does not switch
off, but it is "not ready" to
provide a warning. The system can help you
k eep the vehicle in t he lane . However , yo u are
r esponsible for dr iv ing the veh icle and m ust
stee r it yourse lf .
Adjusting the steering time and
vibration warning
Applies to veh icles: w ith Aud i act ive la ne ass ist
You can adju st individual active lane assist
set tings in the MMI.
.,. Select : the I MENU I but to n > Car > Systems *
contro l butto n > Driver assistance > Audi
active lane assi st.
Steering timel>
Early :
in this setting , the correct ive steering
happens con tinuously to he lp keep the vehicle
i n the cent er of the lane .
Late : in this setti ng, the system provides cor­
rect ive steer ing just before a veh icle whee l
touches a de tected lane ma rke r line .
Vibration warning
You can switch the add it iona l vibrating war n-
ing in t he steer ing whee l on or
off . ..,_

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M 1.1'1 ,....,
A WARNING
With the vibration warning switched off,
no v is ible warning will appear in the in­
strument cluster display when cross ing a
lane marke r.
@ Tips
Market-specific: Your settings are auto­
mat ically stored and assigned to the re­
mote control key being used.
Audi acti ve lane a ssis t 10 1
•

102 Audi side assist
Audi side assist
Side assist
Description
App lies to vehicles: with Audi side assist
Fig . 90 Sensor detect ion ra nge
Fig. 91 Display o n the exterio r 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 your within sensor range@
c:> fig. 90: If a lane change is classified as criti­
cal, the display@in the exterior mirror turns
on c:>fig . 91.
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
cha nge 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 mirror turns on, but is dim. T
he display remains dim 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 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 on of the
display on the rearview mirror
c:>page 104.

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General information
Applies to vehicles: with Audi side assist
®
®
©
Fig . 92 Dr iv ing s it uat ions
I AU DI
Fi g. 93 Rear of ve hicle: se nsor pos it ions
Side assist functions at speeds above app rox i­
mately 19 mph (30 km/h) .
@Vehicl es that 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, t he sooner the display in the exteri ­
or m irror will t urn on.
@ V ehicles 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 indi cated by the time they en­
t er your "blind spot", at the latest.
Aud i side assist 103
© Veh icles 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 or
15 km/h), the display in the exterio r mir ro r
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 or 15 km/h).
Functional limitations
The radar sensors are designed to detect the
left and right adjacent lanes when the road
lan es are the normal width . In some sit ua­
tions, the d isp lay in the exterior mirror may
turn on even though there is no ve hicle locat­
ed in the area that is cr itical for a lane cha nge.
For example:
- If the lanes are narrow or if your are driving
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 you r
current lane .
-If you are dr iving through a curve . S ide as ­
sis t may react to a vehicle that is one lane
over 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 limited .
Do not cover the radar sensors
c> fig. 93 w ith
stickers, depos its, bicycle wheels or other ob­
jects, because this will affect the funct ion. For
information on cleaning, see
c> page 205.
A WARNING
- Always pay attention to traffic and to the
a rea a round your ve hicl e. Side assi st can­
not repla ce a d river's attention . Th e driv ­
er a lone is always responsible for la ne
cha nges and s imilar dr iv ing ma ne uvers.
- In some si tua tions, the system may not
function or its function may be limited.
F or examp le: