2015 AUDI S3 brakes

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Switching adaptiv e cruis e control off
• Push the lever away from you into position
@ until it clicks into p lace. The message
ACC: off appears.
The stored speed in the L ED line is erased .
@ Indicato r light s
Ill-adaptive cru ise control is switch ed on . No
objects ar e detected ahead. The stored spe ed
is maintained .
B-An object ahead was detected . The adap­
tive cruise contro l system regulates the speed
and d istance to the object ah ead and brakes/
accelerates automatica lly.
$ -adaptive cruise contro l is switched on . An
object ahead was detected. Yo ur vehicle re­
mains stopped and will not start driving auto­
matica lly.
• -The automatic braking is not eno ugh to
maintain a sufficient distance to an ob ject
ahead . Yo u must int ervene ¢
page 92 , R e­
quest for driver intervention.
© Instrument cluster display
If adaptive cruise cont ro l is not shown in the
instr ument cluster d isp lay, you can call it up
using the multifunction steering wheel b ut­
tons ¢
page 28 .
Based on the g raphics in the display, yo u can
determ ine if the system is maintaining a dis ­
tance to a vehicle ahead and what that dis­
tance to this vehicle is:
N o vehicle -No object ahead was detected .
White vehicl e -An object ahead was detected .
Red vehicle -Request for the driver to take ac­
tion ¢
page 92 .
Both arrows on the scale© in dicate the dis ­
tance to the object ahead. No arrow 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 indicates the
store distance. Fo r information on changing
Audi ad apti ve crui se control 89
the distance, refer to r::!> page 91. If the dis ­
tance selected is exceeded or not reached, the
arrow moves into the red zone on the scale.
_& WARNING
- Using adaptive cru ise contro l incorrectly
can cause collisions, other acc idents and
ser ious inju ries .
- If you press t he
~IS-E T ~I button when driv­
ing at speeds below 20 mph (30 km/h),
the vehicle acce lerates automatically up
to 20 mph (30 km/h), wh ich is the mini­
m um speed that can be set.
(D Tips
- If you switch the ig nit ion or the adaptive
cruise cont ro l system off, the set speed
is e rased for safety reason .
- The Elect ronic Stabilization Control (ESC)
and Anti-Slip Regulat ion (ASR) both
switch on when the adaptiv e cruis e con­
tr ol is swi tched o n. ESC and AS R canno t
be switched off when ad aptive cruise
cont ro l is switched on .
- Wi th t he adap tive c ruise control activat­
ed the ESC sport mode cannot be ac tiv at ­
ed.
Changing the speed
Applies to vehicles: wit h Audi adaptive cru ise control
0
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Fi g. 81 Operati ng leve r: c ha ngi ng the s pee d
• To increase o r reduce the speed in incre­
ments,
tap the lever up o r down .
• To increa se o r de crea se t he speed q uickl y,
hold the lever up or down until the red L ED
@ reaches the desired speed r::!> page 88,
rg. 80. ~

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 .,.

112 Automatic tran smi ssio n
Stopp ing /p ark ing
If the selector lever is not in the P position
when you open the driver's door, the vehicle
could ro ll. In vehicles with a convenience key*,
the following message appears:
Sh ift to P,
othe rwise veh icle c an roll a way. Door s do not
lock if le ver is not in P.
You will also hear a
warn ing tone.
"' Press and ho ld the brake pedal¢.&_ .
"' Set the parking brake.
"'Se lect the P selector lever pos ition.
St opp ing on an incline
• Always press the brake pedal to hold the ve ­
hicle in p lace and prevent it from "rolling
back"
¢ .&_ . Do n ot try to prevent the vehi­
cle from "roll ing back" when a gear is en­
gaged by increasing the eng ine speed
¢ (D.
Starting on an inclin e in vehicl es w it h out
Hill Hold *
"'Set the parking brake.
"' With the driving gear selected, press the ac­
celerator pedal carefully . The parking brake
will release automat ically if your safety belt
is fastened.
St arting on an incline i n vehicle s with Hill
Hold*
"' With the driving gear selected, remove your
foot from the brake pedal and press the ac­ cele rato r pedal ¢
page 82, Hill hold.
Under certain circumstances, (such as driving
in the mountains or towing a tra iler), it may
be usefu l to sw itch temporarily to the manual
shift p rogram in order to adjust the gears to
the dr iving condit ions by hand
¢ page 114.
When parking on a level surface, simply place
the selector lever in the P pos ition. On in­
clines , activate the parking bra ke first and
then move the selector lever to the P pos it ion
¢ page 80 . This prevents the locking mecha­
nism from being loaded too heavi ly and will
make it easier to move the selector lever out
of the P position.
A WARNING
- The vehicle can roll even when the en­
g ine is switched off.
- Unintended vehicle movement can lead
to serious injuries .
- Never leave your vehicle with the engine running while in gear. If you must leave
your veh icle when the engine is running,
set the parking brake and move these­
lector lever to the P position .
- Power is still transferred to the wheels
when the engine is runn ing at idle. To
prevent the vehicle from "c reeping", you
must keep you r foot on the brake when
the engine is running and the selector lever is in the D, Sor R position or "tip­
tronic" mode is selected . -
-Do not inadvertently press the accelera­
tor peda l when the vehicle is stationary.
Otherwise the vehicle wi ll start to move
immediate ly, even if the parking brake is
set. Th is could result in a crash.
- Do not press the accelerator pedal when
changing the se lector lever position
while the veh icle is stationary and the
engine is running.
- Never engage the R or P selector level positions while dr iv ing. It could cause a
crash .
- Before driving down a steep slope, re­
duce your speed and shift into a lower
gear with "tiptronic" .
- Do not ride the brakes or press the brake
pedal too often or too long when driving
downhill . Constant braking causes the
brakes to overheat and substantially re­
duces braking pe rformance, increases
b rak ing distan ce or causes complete fa il­
ure of the brake system.
- I f you must stop on an in cl ine, always
hold the vehicle i n place with the foot
brake or park ing brake to p revent it from
rolling back .
- Never hold the vehicle on an incline with
a slipping clutch . The clutch opens auto ­
matica lly when it becomes too hot from

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the overload. The ml indicator light
turns on and a message appears
Q page 115 when the clutch is overload­
ed .
-If the engine must run while you are
working in the eng ine compartment with
the hood open, make sure a gear is not engaged . T he selecto r leve r must be
firmly in the P pos ition and locked in
pla ce and t he pa rking brake must be set
Qpage217. Otherwise, the veh icle
cou ld beg in moving when the eng ine
speed is high, even with the parking
brake set.
W Note
- When stopping on an incline, do not try
to ho ld the vehicle in place by pressing
the accelerator peda l w hile a dr iving gear
i s selected. This can cause the automatic
transmission to overheat and can dam­
age it. Set the parking b rake or press the
brake pedal to p revent the veh icle from
ro lling .
- Allow ing the ve hicle to roll when the en­
gine is stopped and the selector lever is
i n the N position will damage the auto­
matic transmission beca use it is not lu­
b ricated unde r tho se c ircumstances.
- The t ransm ission can overheat and be
damaged under certa in d riving and traf­
fi c condition s suc h as frequent s tarts ,
creeping for a long time , or s top-and-go
traff ic. W hen the
ml or . indicator
light turns on, stop the vehicle at the
next oppo rtunity and let the t ransmis ­
s ion coo l
Qpage 115.
-Allow ing the ve hicle to roll when the en­
gine is stopped w ill damage the S tron ic
transmission because it is not lubricated
Q page 282 , Emergency towing with
commercial tow truck .
@ Tips
For safety reasons, the park ing brake re­
leases automatically only when the driver's
door is closed and dr iver 's safety belt is
fastened.
Automa tic tran sm iss ion 113
Hill descent control
App lies to vehicles : wi th 5 tronic tra nsmi ssio n
Hill descent control assists the driver when
driving down hills .
Hill descent control is activated when these­
l ector lever is in the D or S position and you
press the brake peda l. The transmission auto ­
matically selects a gear that is suitable for the
i ncl ine. Hill descent cont ro l t ries to ma inta in
t h e speed ac hieved a t the t ime of b raking,
within physic al and tec hnical lim it a tions. If
may sti ll be ne cessa ry to adju st the speed
with t he b rakes . Because hi ll descent control
cannot sh ift down farthe r than 3rd gear, it
may be necessary to sh ift into t iptronic mode
in very steep areas. In this case, shift into 1st
o r 2nd gear in tiptro nic mode to use the en­
gine's brak ing force to relieve the brakes .
Hill descent control switches off once the hi ll
levels out or you press the accelerator pedal.
On vehicles with a cruise contro l system*
Q page 83, hill descent control is also activat ­
ed when the speed is set .
A WARNING
-
Hill descent control cannot overcome
physical lim itations, so it may not be ab le
to maintain a co nsta nt speed unde r all
conditions . A lways be ready to apply the
b rakes .
•

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Smart Technology
Information about
data recorded by
vehicle control
modules
Your vehicle is not equipped with a crash data
recorder. This device is installed by some vehi­
cle manufacturers to record data about crash­
es so that it can be analy zed later . Crash data
recorders are also called "Event Data Record­
ers ( EDR)" .
In some legal jurisdictions, it is not permitted
to access or download data recorded by pre­
installed crash data recorders in order to eval­
uate a crash without clear consent of the vehi ­
cle owner .
Your vehicle is not equipped with a crash data recorder. However it does contain a variety of
electronic control modules for various vehicle
systems such as engine function, exhaust
treatment or airbags and safety belts .
These electronic control modules record vehi­ cle data during normal driving for diagnosis
and repair purposes . The recording capability
of the electronic control modules is limited to
data only- no sound is recorded.
If the control
module detects a system ma lfunction or other
change in status, a very limited amount of da ­
ta is recorded for an extremely small period of
time . Data that is recorded in such a case may
include vehicle speed, d riving direction, the
load on the brakes and head restraints and
performance in the event of an acciden t or
other change in status . The stored data can
only be read or downloaded with special devi­
ces.
Electronic stabilization
control (ESC)
Description
The Electronic Stabilization Control (ESC) con­
tr ibutes to driver safety. It reduces the risk of
slipp ing and improves driving stability. ESC
Smart Technolog y 189
detects critical situations such as the vehicle
oversteering and understeering or the wheels
are spinning . The vehicle is stabilized by ap­
plying the brakes or reducing engine torque.
Once the ESC is activated, the indicator light
m blinks in the instrument cluster .
The following systems are integrated in the
ESC:
Anti-lock braking system (ABS )
ABS prevents the whee ls from locking when
braking. The vehicle can still be steered even
during hard braking. Apply steady pressure to
the brake pedal. Do not pump the pedal. A
pulsing in the brake peda l indicates that the
system is acting to stabilize the vehicle.
Brake assi st sys tem
The brake assist system can decrease braking
distance. It increases braking power when the
driver presses the brake pedal quickly in emer­
gency situations. You must press and hold the brake pedal until the dangerous situation is
over . In vehicles with adaptive cruise control*,
the brake assist system is more sensit ive if the
distance detected to the vehicle ahead is too
small.
Anti-slip regulation (ASR)
ASR reduces engine power when the drive
wheels begin spinning and adapts the force to
the road conditions . This makes it easier to
start , accelerate and dr ive up inclines .
Electronic differential lock (EDL)
The EDL brakes wheels that are spinning and
transfers the drive power to the other drive
wheel or wheels if the vehicle is equ ipped with
all wheel drive*). This function is not available
at higher speeds .
In extreme cases, EDL automatically switches
off to keep the brake on the braked wheel
from overheating . The vehicle is still working
correctly. EDL will switch on aga in automat i­
cally when cond itions have returned to nor-
mal. .,..
•
•
•