2015 AUDI S3 SEDAN brake sensor

Driving
This message appea rs and a warn ing tone sounds
if you open the driver's door when the ignit ion is
sw itched on. Switch the ign ition
off so that the
battery will not discharge.
Pressing st a rt /s to p button a gain will swit ch off
engine!
This message appears whe n you press the
I S TART ENGINE STOP !* button while driv ing
q page 76, Emergency off .
Engine start sy ste m malfunc tion . Pl ea se c on­
ta ct Ser vice
The engine automatic start system has a mal­
function . Drive to a n author ized Audi dealer or
author ized Audi Serv ice Facility immediately to
have the m alfunction correc ted . T o star t the en ­
g ine, press and hold the
I S TAR T ENGINE ST OP I
button.
DJ Ke y not r ecogniz ed. See owner 's manual
This message appears if there is no convenience
key inside the ve hicle or if the system does not
recogn ize the key . The convenience key may not
be recogn ized, for example , if it is covered by an
object that
disrupts the s ignal (such as a brief­
case), or if the key battery is weak . E lectronic de ­
vices s uch as cell phones can also interfere w ith
the signa l.
To st ill be able to start or stop the eng ine, refer
to "Correcting a ma lfunction"
q page 77.
Ill Key not in vehicle?
The Ill indicator light turns on and this message
appears if the convenience key was removed from
the vehicle whe n the eng ine was runn ing.
If the
convenience key is no longer in the vehicle , you
cannot switch the ig nition on or start the eng ine
once yo u stop it . In add it io n, you ca nnot lock the
ve hicl e from the o utside.
Pr ess brake pedal
This message appears if you do not press the
brake peda l when starting the engine .
Please engage N or P
This message appea rs when starting or s topping
the engine if the selector leve r is not in the Nor P
position. The engine will not start/stop.
78
Shift to P, otherwi se vehicle can roll awa y.
Door s do n ot l ock
if le ver is not in P
This message appears for safety reasons a long
with a warning tone.
It appears if the selec to r
l ever for the a utomat ic transm iss ion is not in the
P position when switching the ignition
off with
the
I S TART ENGINE STOP I* button . Shift these­
l ector lever to the P pos ition . Otherw ise, the vehi­
cle co uld roll. You also cannot lock the vehicle us­
ing the lock ing sensor o n the doo r hand le or us ­
i ng the conven ience key .
Electromechanical
parking brake
Operating
The electromechanical parking brake replaces
the hand brake.
Fig. 71 C ente r consol e: pa rk in g b rake
.. Pull the sw itch @¢ fig. 71 to set the pa rking
br ake . The - (USA models)/ . (Can ada
mode ls) indica to r li ghts in the button and in
the inst rument cluste r display turn on .
.. To release the pa rking brake, press the brake or
accelerator pedal wh ile the ignition is sw itched
on and press the button @ at the same time.
The - (USA models)
I. (Canada models)
ind icator lights in the button and in the display
turn off .
Your vehicle is equipped with an e lectromechani­
ca l park ing brake. The parking brake is designed
to prevent the vehicle from ro lling un intent ional ­
l y and replaces the hand brake .
In add ition to the normal functions of a tradition-
al hand brake, the electromechanical parking ..,_

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General information
Applies to vehicles: with Audi adaptive cruise control and Audi
pre sense front
Fig. 81 Front of vehicle: sensor
The general information applies to adaptive
cruise control* and pre sense front*
r::!>page 103.
The radar sensor area r::!> fig. Bl must not be cov­
ered with stickers, deposits or any other obstruc­
tions as it may impair the function of the adap­
tive cruise control and the pre sense front. For in­
formation on cleaning, refer tor::!>
page 235. The
same applies for any modifications made in the
front area .
The function of the adaptive cruise control sys­ tem and pre sense front is limited in some condi­
tions :
- Objects can only be detected when they are
within the sensor ranger::!>
page 96, fig. 80.
-The system has a limited ability to detect ob­
jects that are a short distance ahead, off to the side of your vehicle or moving into your lane.
- Objects that are difficult to detect such as mo­
torcycles, vehicles with high ground clearance
or an overhanging load are detected late or not
detected at all.
- When driving through curves
r=> page 98.
-With stationary objects r::!> page 98.
A WARNING
Always pay attention to traffic when adaptive
cruise control is switched on and the pre
sense front is active
r::!> page 103. As the d riv­
er, you are still responsible for starting and
for maintaining speed and distance to other objects. The pre sense front is used to assist
you. The driver must always take action to
Assist
avoid a collision. The driver is always responsi­
ble for braking at the correct time.
- Using adaptive cruise control incorrectly can
cause collisions, other accidents and serious
injuries.
- 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 condi­
tions could result in a collision.
- Switch adaptive cruise control off tempora­
rily when driving in turning lanes, on ex­
pressway exits or in construction zones. This
prevents the vehicle from accelerating to
the set speed when in these situations.
- The adaptive cruise control system will not
brake by itself if you put your foot on the ac­
celerator pedal. Doing so can override the
speed and distance regulation.
- When approaching stationary objects such
as stopped traffic, adaptive cruise control
will not respond and pre sense front will
have limited function.
- The adaptive cruise control system and pre
sense front do not react to people, animals,
objects crossing the road or oncoming ob­
jects.
- The function of the radar sensors can be af­
fected by reflective objects such as guard
rails, the entrance to a tunnel, heavy rain or
ice.
- Always maintain enough distance from
vehicles ahead so that you can still brake
your vehicle safely. The adaptive cruise con­ trol cannot safely slow your vehicle or brake it to a stop if you are driving too close be­
hind a vehicle. Please note that the auto­
matic braking function cannot brake sud­
denly or apply the brakes fully under these
conditions.
- To reduce the risk of unintended actions,
switch the ACC off when you are not actively
using it.
~
97

Assist
(D Note
The sensor can be displaced by impacts or
damage to the bumper, wheel housing and
underbody. The adaptive cruise control and
pre sense front may become impaired as a re­
sult. Have an authorized Audi dealer or au­
thorized Audi Service Facility check their func­
tion.
In curves
Applies to vehicles: with Audi adaptive cruise control and Aud i
pre sense front
Fig. 82 Example: driving into a curve
When driving into a curve~ fig. 82 and out of a
curve, the adaptive cruise control may react to an
object in the neighboring lane and apply the
brakes. You can prevent that by pressing the ac­
celerator pedal briefly .
Stationary objects
Applies to vehicles: with Audi adaptive cruise control and Audi
pre sense front
Fig. 83 Example: object changing lanes and stationar y ob­
ject
l l Speed limits depe nd on t he country and the speedo meter .
98
Adaptive cruise control
The adaptive cruise control system only reacts to
objects that are moving or that the system has
already detected as moving. For example, it can
react when a vehicle that has already been de­
tected @turns or changes lanes, but adapt ive
cruise control does not react to a stationary vehi­
cle @. Press the brake pedal to slow your vehicle
down!
Pre sense front
Pre sense front only reacts to stationary objects
at low speeds.
Switching on/off
Applies to vehicles : with A udi adaptive cruise contro l
Fig. 84 Operating lever: switching on/off
Fig. 85 Instrument cluster: adaptive cruise control
You can set any speed ll between 20 mph and 95
mph (30 and 150 km/h).
Ind icator lamps and messages in the instrument
cluster disp lay inform you about the current sit-
ua tion and settings. ..,

Ass is t
- Always fo llow applicable traffic laws, use
common sense and select a distance to
vehicles ahead that takes the current traffic, road and weathe r cond itions into account.
(D Tips
Distance 3
is set a utomat ica lly each time you
sw itch the ignition on. It you wou ld like to
have this distance as a basic sett ing, you can
have the
adaptive cruise control menu ex­
tended
I e nabled from an authorized Aud i
dea le r or a uthorized Audi Service Facility .
Setting the driving program
Applies to vehicles: with Audi adaptive cruise co ntrol
A adaptive cru ise con trol dr iving pr ogram is ad­
justable on veh icles w it h out A udi drive selec t*.
• In the MMI, se lect: the
! MENU ! button> Car >
Sy stem s*
cont ro l bu tton > Driver a ssistance >
Adaptive crui se control > Driving program >
Comfort /Standard/Dynamic .
Selecting the driving mode
Applies to veh icles: w ith Audi adaptive cruise co ntrol
The adap tive c ruise control driv ing program is ad­
justable for vehicles with Audi
drive select usi ng
the dr iv ing mode.
• Select the des ired driv ing mode
Comfo rt , Auto ,
Dynamic or Individual *
with the knob
¢page 112 .
Request for driver intervention
App lies to veh icles: w ith Audi adaptive cruise co ntrol
F ig. 89 Instr ument cluste r: d river intervent ion req uest
102
In some situations, the brak ing from the adap ­
tive cruise control system is not enough to main­
ta in enough d istance to the object ahead. In
these situations, the system will request you to
take action.
The . indicator light and the graph ic in the dis ­
play w ill warn you abo ut the danger ¢
fig. 89 .
You w ill also hear an audio signa l. Press the brake
pedal to slow your vehicle down.
Driver messages
App lies to vehicles: wit h Aud i adapt ive c ru ise contro l
ill ACC: unavailable
The system cannot guarantee that it will detect
objects correctly and is switched off. The sensor
was
moved or is faulty. Drive to an author ized
Audi dealer or authorized Audi Service Fac ility im ­
med iate ly to have the malfunction corrected.
ill ACC : currently unava ilable . No sensor vision
IIJ ACC and Audi pre sen se : currently unava ila­
ble. No sensor vis ion
This mess age appears if the sensor v iew is ob ­
str ucted, for e xam ple by leaves, snow, heavy
spray or di rt. C lean the sensor-=>
page 97, fig. 81 .
ill ACC: currently unavailable . Gradient too
steep
The road exceeds the max imum possible angle
for safe adaptive c ruise contro l operation . Th e
adap tive cruise co ntrol cannot be switched on .
ill ACC: only available in D, Sor M
Select the D/S or M selector lever pos ition.
II) ACC: parking brake applied
The adaptive cru ise cont ro l system swi tch es off
automat ically if t he parking b ra ke is set . The
ad aptive cruise co ntrol is av ail ab le ag ain after re ­
l eas ing t he pa rking br ake.
II ACC : currently unavailable. Stabilization
control input
This message appears if the Electronic Stabiliza ­
tion Control (ESC) is taking act io n to stabilize the
vehicle . In t his case, adaptive c ruise cont rol
swi tches off automat ically.

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llJ ACC off: manu al cont rol!
This message appea rs if the veh icle rolls back
when sta rting on a slight incline, even tho ugh
ACC is active. Press the brake pedal to prevent
the vehicle from rolling or starting to move.
IIJ ACC : engin e speed
This message appears if the driver has not shifted
up or down in time when the adaptive cruise con­
trol is braking or accelerating, causing the vehicle
to exceed or to not reach the permitted eng ine
speed. The adapt ive cr uise control turns off. A
chime sounds as a reminder.
•••
Three wh ite dots appear if a setting cannot be se­
lected with the operat ing lever . For example, this
happens if adaptive cruise control cannot be act i­
vated when stopped because the dr iver has not
fastened the safety belt.
Doo r op en
Adaptive cruise control cannot be switched on
when the vehicle is stationary and the dr iver's
door is open.
Audi pre sense
Introduction
Applies to vehicles: with Audi pre sense bas ic or Audi pre
sense front
W ith in the limits of the system, p re sense basic
and p re sense fro nt can initiate steps to protect
veh icle o ccupants i n certa in dangerous s itua­
tions.
Critical driving situat ions can be recognized by
the pre sense front v ia a network of differe nt ve ­
h icle systems and can take steps to prepare the
veh icle occ upan ts for a po ten tial coll is ion.
The pre sense front wo rks with a radar sensor and
a video camera*. It also functions within t he lim­
i ts of the system when adapt ive cr uise con trol* is
sw itched off.
A ss is t
General information
General information
Applies to vehicles: wit h Audi pre sense front or A udi ada ptive
cruise control
_&. WARNING
A lso follow the gene ral info rmation found on
~ page 9 7, General information.
Audi pre sense basic
Description
App lies to vehicles: wit h Aud i pre sense basic
The function of the pre sense basic is activated at
a speed of 20 mph (30 km/h) or higher .
The following functions can be triggered under certain conditions within the limits of the sys­
tem:
- Tensioning of the safety belts (for example,
during heavy braking): the front safety belts
have reversible belt pretensioners. If a col lision
does not occur, the safety belts loosen slightly
and are ready to trigger again .
- Closing the windows and the sunroof* (for ex­
ample, when over- or understeering): the w in­
dows and the sunroof* close until there is only
a small gap open .
Audi drive select: the deployment time is adapt­ ed in dynam ic mode.
_&. WARNING ~
The pre sense basic cannot overcome natural
physical laws . It is a system des igned to assist
and it cannot p revent a coll ision. Do not let
the increased safety provided tempt you into
taking r is ks. Thi s co uld inc rease your risk of a
collis ion .
- The system can dep loy incorrectly due to
system-specific limits .
(D Tips
-Certa in p re sense bas ic functions switch off
when ESC is switched off (sport mode) o r
w hen driving in reverse. .,.
103

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-Please note that the sensor does not always
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 ve­
hicle's path or are difficult to detect
¢ page 97.
-Reflective objects such as guard rails or the
entrance to a tunnel, heavy rain and ice can
affect the funct ion of the radar sensor and
the system's ability to detect a collision risk .
- Lack of attention can lead to collisions, oth­
er 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 re­
sponsible for braking at the right time.
- Always pay attention to traffic, even when
pre sense front is switched on . Always be
ready to intervene and take over complete
control of the vehicle whenever it is neces­
sary. Always follow traffic laws regarding
maintaining a safe distance between your
vehicle and vehicles ahead.
- pre sense front works within certain limits
and cannot react to situations that are out­
side of the system limits, such as when ap­
proaching a stationary vehicle or a station­
ary obstacle (the end of a traffic jam or ave­
hicle that has broken down).
- Always keep in m ind that the radar sensor
for pre sense front only works w ith in de­
fined detection zones, which means other
vehicles may not always be detected correct­
ly.
- The function and range of the radar sensor
can be impaired by rain, snow and heavy
mist. Vehicles ahead may not be detected
right away, or not detected at a ll.
- Reflective surfaces such as guard rails or en­
trances to tunnels may impair the function
of the radar sensor.
(D Note
The sensor can be disp laced by impacts or
damage to the bumper, whee l hous ing and
underbody. The pre sense front sensor can be
damaged by this . Have an authorized Audi
Assist
dealer or authorized Audi Service Facility
check their function.
(D Tips
- You can cancel the braking with increasing
force that is initiated by the system by brak ­
ing yourself, by acce lerating noticeably or by
swerving .
- For information on driver messages about
pre sense, refer to ¢
page 106.
- Keep in mind that pre sense front can brake
unexpectedly. Always secure any cargo or
objects that you are transporting to reduce
the risk of damage or injury .
- Certain pre sense front functions switch
off
when ESC is switched off (sport mode) or
when driving in reverse.
- The pre sense front functions are not availa­
ble if there is a malfunction in the adaptive
cruise control* system
¢page 102 or
¢ page 106.
-Keep in mind that pre sense front can brake
abruptly. Always secure cargo or objects
that you transport to reduce the risk of
damage or injury .
Settings in the Infotainment system
Applies to vehicles : wi th Audi pre sense front or A ud i ada ptive
cruise co ntrol
.,. In the MMI, select: the I MENU I button >C ar>
Systems*
car > Driver assistance > Audi pre
sense .
Switching the system on and off
Audi pre sense (Sys tem): if the system is switch­
ed
off, it switches on again automatically once
the ignition is switched on again.
System -Switch Audi pre sense On-Off . With
this, you can switch the prewarning and the brak­ ing intervention from Audi pre sense on or
off.
Early warning -The distance and approach warn­
ings can be switched
On /Off.
(D Tips
-If you restrict or switch off the ESC, the pre
sense also switches itse lf off ¢
page 124 .
105

Care and cleaning
& WARNING
- Only wash the vehicle when the ignition is
off an d follow the i nstructions fr om the car
wash operator to r educe the r isk of acci­
dents.
- To reduce the r isk of cuts, protect yourself
from sharp metal components when wash­ ing the underbody or the inside of the wheel
hous ings.
- After washing the vehicle, the braking effect
may be delayed due to moisture o n the
brake rotors or i ce in the winte r. T he bra kes
mus t be d ried first w ith a few caref ul bra ke
applications .
@ Note
-If you wash the ve hicle in an au tomatic car
wash, you m ust fold the e xterior m irrors in
to reduce the ris k of damage to the mirrors .
Power folding exterior mirrors* must only
be fo lded i n and out using the power folding
funct ion. -
To prevent paint damage, do not wash the
vehicle in direct sunlight.
- T o reduce the r is k of damage to the sur face,
do not use insect remov ing sponges, kitchen
sponges or similar items.
- Mat te finish painted vehicle components:
- To reduce the risk of damage to the sur-
face, do not use po lishi ng agents or hard
wax.
- Never use protective wax.
It can destroy
the matte finish effect.
- Do not place any stickers or magnet ic
signs on vehicle parts painted w ith matte
finish paint. The pa int co uld be damaged
when the sticke rs o r mag nets are re­
moved.
@ For the sake of the environment
Only wash the ve hicle in facilities spec ially de­
s igned fo r that purpose. This w ill reduce the
r isk of dir ty wa ter co ntaminated w ith oil from
entering the sewe r system.
Cleaning and care information
When cleaning and caring for individua l vehicle
components, refer to the following tables. The
information contained there is simply recommen­
dations. For quest ions or for components that are not listed,
consult an authorized A udi dealer
or authorized Audi Service Facility . Also follow
the information found in
¢ _6.
Exterio r cleaning
Component Situation Solution
Windshield wiper
Deposits ¢ page 50, Cleaning windshield wiper blades
blades
Headlights /
Deposits Soft sponge with a mild soap
solutiona)
Tail lights
Sensors /
Deposits Sensors: soft cloth with solvent-free cleaning so lution
camera len se s Camera le ·nses : soft clot h w ith a lcohol-free clea ning so lu-
tion
Snow/ ice Hand brush/solvent-free de- icing spray
Wheel s Road sa lt Water
Brake dust Acid-free specia l cleaning solution
E xhau st tail pipe s Road salt Water, clean
ing solution su itab le for stain less stee l, if nee -
essary
D ecorative parts / Deposits Mild soap solution al, a clean ing solution suitable for stain-
trim l ess stee l, if necessary
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-Some of the equipment listed in the follow­
ing tables applies only to certain model
versions or certain opt ional equ ipment.
Interior fuse ass ignment
F ig. 186 Vehicle interior: fuse assignment
No. Equipment
Fl Engine components
F2 Seat
adjustment
F3 Hydraulic pump cover (Cabriolet)
F4 MM
controls, MMI-components
FS Gateway
F6 Anti-theft
alarm system
Climate/heati ng control, selector lever
F7 (automat ic transm ission), parking heater,
rear window heater relay coil
Diagnosis, electromechanical parking
F8 brake switch, light switch, rain/light sen-
sor, interior lighting
F9 Steering column switch module
FlO Display
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Fll Reversible
driver's side safety belt tension-
ers
F12 MMI area
F13 Adapt ive dampers control module
No.
Fl4
FlS
Fl6
F 1 7
F18
F19
F20
F23
F 24
F 25
F 26
F27
F28
F29
F 31
F32
F 33
F34
F3S
F 36
F37
F 39
F 40
F 41
F42
F43
F 44
Fu ses a nd bulb s
Equipment
Climate control system blower
Electronic steering co lumn lock
MMI area
Instrument cluster
Rearview camera
Conv ince key system control mod ule, tank
system
Tank system
Exterior lighting, heated washer fluid noz-
zles
Panorama sunroof/ power top control
module, power top latch (Cabriolet)
Door/driver 's side doors (for example pow-
er windows)
Se at heating
Sound-amplifier
Power top control modu le, electronics
(Cab riolet)
Inter ior light ing
E xterior lighting
Driver assistance systems
Airbag
Button illumination, coils for upper cabin
heating relay (Cab riolet) and socket relay,
i nte rior sound, back- up light sw itch, tern-
perature sensor, oi l level sensor
Diagnosis, headlight range control system,
a ir quality sensor, automatic d imming
rearview m irror
Right cornering light/ right LED-headlight
Left cornering light/ left LED-headlight
Door/front passenger's side doors (for ex-
ample, power windows)
Sockets Reversible front passenger's side safety
belt tensioners
Central locking components, windshield
washer system
Head lights, l ight ing
a ll wheel drive
249