2017 AUDI A3 SEDAN brake sensor

CXl CXl .... N ,.__
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Adaptive cr uise control*
¢ page 128
e-tron: system warning *
¢page98
e- tron: charg ing system*
¢ page 117
Yellow indicator lights
--------------
Cent ral indicato r light
¢page 24,
Brake booster*
¢page27
Ele ct ronic Stabi lization Con trol
( E SC)
./
¢ page 31
Electronic Stabilization Control
(ESC)
./
¢ pag e 31
Elect ronic Stabilization Control
(ESC)
opage 151
USA models:
Anti-loc k bra king system (ABS) ./
¢page 31
Canada models :
Anti-lock bra king system (A BS)./
¢ page 31
Safety systems ./
¢page29
USA models:
Brake pads
. , ¢page31
Canada models :
Brake pads
¢page31
Ele ctr omech anical pa rk ing bra ke
¢ page28
Hill hold ass ist
¢ page 31
Tire press ure*
¢ page344
Cockpit o verview
Tire p ressure*
¢ page 344
Engine contro l*
¢ page 31
Engine co ntro l*
¢ page 31
Malfunc tion indica to r l amp (M IL)
./
¢ page 31
En gine speed limitation*
¢page 31
En gine o il level (MIN)
¢ page 32
En gine o il sensor
¢ page 32
Battery charge
¢page 29
Tank system
¢page 32
Washer f lu id level
¢ page 32
Windsh ie ld w ipers
¢ page 32
Remo te contro l key*
¢ page 80
D river 's doo r*
¢ page 32
Battery i n remote control key
¢ page35
Bu lb fa ilure indicator*
¢ page 33
Head light range control system
¢ page 33
Adaptive light *
¢page 33
Lig ht/rain senso r*
¢page 33
Transmission
¢ page 91
Stee ring lock
¢ page 30
25

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Which functions can be contr oll ed?
When you sw itch adaptive cruise control on, you
can set the current speed as the "control speed"
¢ page 128 , Switching on/off .
When driving, you can stop cruise co ntro l
¢ page 130 or change the speed ¢ poge 129 at
any time .
You can also set the distance to the veh icle ahead
and set t he adaptive cruise contro l dr iv ing pro ­
g ram
¢ page 131 .
General information
Applies to: vehicles with Audi adaptive cruise control/Audi pre
sense front
F ig. 129 Fro nt o f vehicl e: sensor
T he radar sensor area ¢ fig . 129 mus t not be cov­
ered with st ickers, deposits or any other obstruc ­
tions as it may impair the function of the adap­ tive c ruise control or the pre sense front . For in­
formation on clean ing ,
see ¢ page 347 . The
same applies fo r any modifications made in the
front area .
The funct ion of the adaptive cruise contro l sys­
tem or pre sense fron t is l imited in some cond i­
tions :
- Vehicles can only be detected when they are
within the senso r
range¢ page 126, fig . 128 .
- The system has a limited abil ity to detect
vehicles that are a short distance ahead, off to
t h e side of your vehicle or moving into your
lane .
- Objects that are difficu lt 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
¢ page 128 .
Ass is ta nce syst ems
-When the vehicle is stationary ¢ page 128.
A WARNING
Always pay attention to the traffic around you
when adaptive cruise control is switched on.
As the driver , you are still responsible for your
own speed and the d istance to other veh icles .
The adaptive cruise control is used to ass ist
you . The driver m ust always take action to
avo id a co llision . The d river is always responsi­
b le for b raking at the co rrect t ime.
- For safety reasons, do not use adaptive
cru ise control when driving on roads with
many cu rves , when the road s urface is in
poor conditio n and/or in bad wea ther (such
as ice, fog, gravel, heavy rain and hyd roplan ­
ing) . Using the system under these condi­
tions could result in a co llision.
- Sw itch adaptive cruise control off tempora ­
rily when driving in turning lanes, on ex­ pressway ex its or in construction zones . This
prevents the veh icle from acce lerating to
the stored speed when i n these situat ions.
- The adaptive cruise contro l system will not
brake by itself if you put you r foot on the ac­
celerator pedal. Doing so can override the
speed and d istance regulat ion .
- Adapt ive cruise control does not respond to
peop le, animals, or crossing or oncoming
objects .
- The funct ion of the radar sensors can be af­
fected by reflective objects such as gua rd
rails, the en trance to a t unnel, heavy rain or
ice .
(D Note
The sensor can be displaced by impacts or
damage to the bumper, wheel housing and underbody. This can impair the adaptive
cruise control. Have an authorized A udi dealer
o r authorized Audi Service Facility check t heir
f u nct ion.
127

CXl CXl .... N ,.__
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fall below t he warn ing t hreshold for an ex ­
tende d pe riod of time .
Messages
Applies to: veh icles with Audi adaptive cruise control
ll'J ACC: unavailable
The system ca nnot guaran tee that it will detec t
ve hicl es co rrectly a nd it h as sw it c he d off . T he
sensor was moved or is fau lty . Dr ive to an au tho r­
i z ed A udi dealer or au thori zed A udi Service Fac ili­
ty immediately to have the malfunction cor rect ­
ed .
Ill ACC : currently unavailable . No sensor vision
II ACC: currently unavailable. Sensor vision re­
stricted due to surroundings . See owner's man­
ual
This message appears if the sensor view is ob ­
structed, for example by leaves, snow, heavy
sp ray o r d i rt. C lean the sensor
r:::;, page 12 7,
fig. 12 9.
II ACC : currently unavailable . Gradi ent too
steep
The road exceeds the maximum possib le ang le
for safe adaptive cruise control operation . The
adapt ive cr uise control cannot be sw itched on .
II ACC: only available in D, Sor M
Select the D/S or M se lector lever posi tion.
Ill ACC : parking brake applied
The adaptive cruise co ntro l system switches off
automatically if the parking brake is set. T he
adapt ive cr uise control is ava ilable aga in a fter re­
l easi ng the par king brake .
ll'J ACC: currently unavailable. Stabilization
c ontrol input
T his message appea rs if the Electronic Stabiliza ­
tion Control (ESC) is tak ing action to stabili ze the
ve hicle. In this case, adapt ive cruise control
sw itches off automatically.
II) ACC off: manual control!
This message appea rs if the veh icle rolls back
when sta rting on a slight in cline , even though
Assistance systems
ACC is ac tive . Press t he b rake pedal to preven t
t h e vehi cle from rolling o r starting to move.
Distance warning: malfunction! Please contact
Service
T he system canno t gua rantee that it will detect
vehicles cor rect ly and it has switc hed off. The ra ­
dar sensor was move d or is faulty. Drive to an a u­
thorized Aud i de aler o r au thori zed Audi Service
F acility immed iate ly to have the ma lfunction co r­
rected.
Distance warning: currently unavailable. Sensor
view restricted due to surroundings.
T h is message appears if the senso r view is ob­
str ucted, for examp le by leaves, snow, heavy
s pra y or dirt. Cle an t he
sensor <> page 12 7,
fig. 129 .
Distance warning: currently unavailable. See
owner's manual
This message appears if the system has a tempo­ rary fa ilure.
If this occurs m ultiple t imes, drive to
an a uth orized Aud i dea le r or a uth orized Audi
Se rvice Facility i mmed ia te ly to h ave the ma lfu nc­
t ion co rre cte d.
Fasten seat belt
The system is not complete ly ava ilable if the dr iv­
er 's seat belt is unfastened.
Stat. obj. ahead
T h is m ess age appears if yo u wo uld like to switch
t h e sys tem on and t here is a s ta ti onary objec t di­
rectly in front o f yo ur vehicle.
Door open
The system is not available whe n the vehicle is
stationary and the driver's door is open.
Audi pre sense
Introduction
Appl ies to : vehicles wit h Aud i pre sense
Within t he limits of the system, the pre sense
f unct ions can initiate measures in pa rtic ularly
dange rous situations to protect the vehicle pas-
sengers and other road users.
..,.
133

Assistance systems
-Due to the interlinking of various vehicle sys­
tems, critica l driving situations can be detected
by
pre sense basic and measures for preventa­
tive occupant protection are can be initiated.
-The pre sense front uses the data from the ra­
dar sensors and calcu lates the probability of an
accident
c> page 127. An impending collision
with vehicles can be detected within the limits
of the system . In this case, the system warns
the driver visually, acoustically and with a jerk
on the brakes if necessary. If needed, it can i ni­
tiate a partia l or full dece le rat ion to reduce the
collision speed o r to avoid the coll ision unde r
ce rtain c ircumstances. In conjunction with pre
sense basic, the front safety belts are also re­
versib ly tensioned when needed . The pre sense
front is also active when adaptive cruise con­
trol* is sw itched off.
.,&. WARNING
Also follow the general instructions found in
c> .&. in General information on page 127.
(i) Tips
-Certain pre sense functions switch off when
driving in reverse.
-The pre sense functions may not be availa­ ble if there is a malfunction in the ESC sys­
tem or the airbag contro l module.
-Note that the reversible belt tensioner on
the front passenger's side deactivates when
the front passenger's a irbag is deactivated .
-Switch the pre sense off when you are not
us ing public streets or when loading the ve­
hicle onto a vehicle carr ier, train, ship or
other type of transportation. This can pre­
vent an undes ired intervention from the pre
sense system.
Audi pre sense basic
Description
Applies to: veh icles with Audi pre sense basic
The pre sense basic funct ions are activated at a
speed of approximately 20 mph (30 km/h) or h igher.
134 The following
functions can be triggered under
certain conditions within the limits of the sys ­
tem:
-Tensioning of the safety bel ts (for examp le,
during heavy braking): the front safety belts
have reversib le be lt tensioners. If a collision
does not occur, the safety belts loosen slightly
and are ready to trigger aga in.
-Initiating the closing of the windows and the
panorama glass roof* (for examp le when un­
der- or oversteering).
Audi drive select* : the trigger times are adjusted
depending on the mode selected.
Audi pre sense front
· Description
Applies to: vehicles with Audi pre sense front
Within the limits of the system and depending
on the situation and speed, pre sense front can
warn you about impending collisions with sta­
tionary, stopped, and moving vehicles and ini ­
tiate appropriate braking measures.
If detection is not possib le, then pre sense front
does not react.
The following func tions trigger in conjunction
with pre sense basic at corresponding vehicle
speeds :
-Reversible tens ion ing of the front safety belts.
-Closing the windows and panorama glass roof*.
Warnings and braking
Applies to: vehicles with Audi pre sense front
Fig. 140 Instrument cluster: approach warning
0
;
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Ea rl y warning /a cut e warning
The system can prov ide v is u al and aud ible warn­
ings when dangerous situations are detected.
The
earl y wa rning may occur if:
- a vehicle d riving ahead brakes strongly,
- your vehicle is traveling at speeds between ap-
prox imately 20 to 50 mph (30 to 85 km/h) and
it approaches a stationary veh icle.
- your vehicle is trave ling at speeds between ap­
prox imately 20 to 155 mph (30 to 250 km/h)
and it approaches a vehicle that is clearly t rav­
eling more slowly o r a veh icle in your direction
of travel that is stopped.
When t his warning occurs, it may on ly be poss i­
b le to avoid a collision by swerv ing or b raking
strong ly. The message
Aud i pre sens e.
¢ fig . 140 and a warning tone will warn you
about the danger .
If there is an impending collision with vehicles,
there will a lso be an
acute warning in the form of
sharp braking. If you do not react to the acute
warn ing, pre sense front can brake with increas ­
ing force within the limits of the system. This re­
duces the vehicle speed in the event of a coll i­
sion.
Automatic d ecel erati on
Depending on the speed , pre sense front can de­
c elerate automat ically
shortly before a collision:
- i f there are s tat ionary vehicles whe n you are
traveling at speeds up to approximately 28 mph (45 km/h).
- if there are vehicles driving or stopped ahead
when you are traveling at speeds up to approxi ­
mately 155 mph (250 km/h) .
Automatic braking force inc rease
I f pre sense front determines that you are no t
b raking st rongly enough when a collision is imm i­
nent, it can increase the b raking force, depending
on the situation and speed.
- i f there are stationary vehicles whe n you are
t raveling at speeds up to approximately 50
mph (85 km/h) .
A ss ista nce sys te m s
- if there are vehicles d riving or stopped ahead
when you are traveling at speeds up to approxi­ mate ly 155 mph (250 km/h).
A WARNING "--
Pre sense front cannot overcome the laws of
physics. It is a system designed to ass ist and
i t cannot prevent a collision in every c ircum­
stance. The driver must always intervene. The
d river is always respons ible for braking at the
cor rect time. Do not let the increased safety
p rovided tempt you into ta king risks. This
could increase your risk of a collis ion .
- Keep in mind th at pre sense front can pro ­
vide warn ings or b rake unexpected ly. Al­
ways secure any cargo or objects that yo u
are transporting to reduce the risk of dam­
age or injury.
- The system can dep loy incorrectly due to
system-specific limits.
- Please note that the sensor does not a lways
detect a ll objects . T hi s increases the risk of
a co llision.
- Pre sense front does not react to vehicles traveling toward you in the same lane, to peop le, groups of people, anima ls, objects
that are crossing the road, or objects that are difficult to
detect¢ &. in General infor­
mation on page 12
7.
A WARNING
"---
Pre sense front may be restricted or not avail­
able i n the follow ing example s ituations:
- if there a re other ref lective objects nearby,
such as guard ra ils or vehicles.
- when dr iv ing into a tunnel.
- in heavy fog, ra in, spray or snow.
- if the radar sensor is di rty, covered in ice,
damaged, or covered .
- in curves .
- if the ESC was restri cted or sw itched off.
(£) Note
The sensor can be displaced by impacts or
damage to the bumper, wheel housing and u nderbody. Pre sense front ca n be impaired
135

Ass is tance sy stems
Rear cross-traffic assist
Applies to: ve hicles w ith rear cross -traff ic ass ist
F ig. 148 D isp lay example
F ig. 149 Infotainment system: rear cross-traffic assist dis­
play
The rear cross-traffic assist can warn the driver of
a potential collis ion with approaching cross-traf­
fic when driving in reverse. Within its limits, the
system mon itors the areas beh ind and next to
the vehicle using the radar sensors when leaving
a park ing spa cer::!.>
page 140, fig. 147. Moving ob­
jects that are approaching, such as cars, are de­
tected
r::!.>fig. 148.
If the system detects cr itical c ross traffic when
backing ou t of a par king space, it will rea ct as fol­
lows:
- Vi sual indicator : an indicator appea rs in the In­
fota inment system display wi th a red arrow
symbol. The ar row po ints in the direction from
which the object is approach ing
r::!.> fig . 149.
- Audible warning signal : a continuous tone may
sound as an addition al indicator when driving in
reve rse.
- Automatic brak e activation : a brief act ivat io n
of the brakes may a lso warn you of a potential
collision with an approaching object.
142
Requir ements for using the r ear cross -traffic
as sist :
-The parking aid m ust be switched on
c>page 146.
-Reverse gear must be engaged.
- The speed must not be higher than approxi -
mate ly 7 mph (12 km/h) .
A WARNING
-The rear cross-t raffic assist is an assist sys­
tem and cannot prevent a collision by itself.
The driver must always intervene. The driver is always responsib le for braking at the cor­
rect t ime.
- Please note that the rear cross-traff ic assist
may activate the brakes unexpected ly. Se­
cure any cargo that you are transpo rting to
reduce the r isk of damage or injury.
- An add itiona l brake activation may be trig­
ge red w ithi n
10 seconds after an automatic
brake activation.
- If there is an acoust ic warning signal from
the rea r cross-traffic assist, t hen the park­
ing sys tem may not warn you of detected
obs ta cl es u nde r certain circumstances.
- The v iew of the radar sensors may be im­
pa ired by leaves, sn ow, heavy sp ray or dirt.
Clea n the area in fron t of t he sensors
r::!.> page 140, fig . 147.
A WARNING
T he rear cross- traffic assist is subject to limi­
tations and cannot warn yo u before every im­
pending co llision:
- If the veh icle is too wide for the park ing
space and covered by the neighboring
veh icles.
- People, such as cyclists, joggers, in line skat ­
ers a nd pedest rians, may not be detected
under certain circumstances.
- If you are in a paralle l parking s pace or d iag­
onal park ing space .
(D Note
Also read the information in r::!.> 0 in General
information on page 1 41.

@ Tips
-You can cance l the automatic brake activa­
tion w ith increasing bra king fo rce if you ap­
ply the brakes y ourse lf or accelerate cons id­
erab ly.
- In some sit uations, rea r cross-traffic assist
may warn yo u even if there is no cross traffic
i n a cr itical a rea , for examp le w hen back ing
i nto a parki ng space or ma neuver ing.
- The rea r cross-traffic ass ist also switches off
whe n you switch off the ESC.
- The rea r cross traffic assist switches on and
off thro ugh the pa rking aid
qpage 146.
- The system is not available when towin g a
trailer.
Messages
A ppl ies to: ve hicles with Audi side assist
If t he side assist switches off automatically, a
message appea rs in the ins trumen t clus ter dis ­
pl ay.
@j Aud i side assist: System fault!
The system can not guarantee that it wi ll detect
ve hicles co rrectly and it has switched off. The
sensors have been moved o r are faulty. Have t he
system checked by an authorized Audi dea ler or
author ized Audi Service Facility soon .
@j Audi side assist: currently unavailable. No
sensor vision
@j Audi side assist: currently unavailable. Sen­
sor vision restricted due to surroundings . See
owner 's manual
The radar senso r vis io n i s im paire d. Do not cove r
the area i n front of t he senso rs with bike wheels,
stickers, dirt o r othe r objects. C lean the area in
fron t of t he senso rs, if necessary
q page 140,
fig. 147.
@j Audi side assist: currently unavailable
S ide assis t cann ot be swi tched o n at thi s time be­
c a use t here is a mal func tion (fo r ex amp le, the
~ ba ttery ch arge level may be too low) .
....
~ @j Audi side assist: unavailable in towing mode
....
~ @j Audi side assist: unavailable in towing mode
00
Assistance systems
Sid e ass ist swi tches off automatically a fter a
s h ort time when a factory -insta lled tra ile r h itch
i s connected to the e lectrica l connecto r on the
t railer . T here is no gua rantee the system will
switch off when using a retrofitted trailer h itch.
Do not use side assist when tow ing a trailer .
Ill Rear parking aid : obstacle detection restrict­
ed
T he rea r cross -tra ffic ass is t is not available. Ei­
t h er th e ESC is sw itched off, or the rada r senso rs
may be cove red by a bike rack, st icke rs, leaves,
snow o r other objects. Switch the ESC on, or
clean the area in front of the senso rs if necessa ry
q page 140, fig . 147. If t his message continues
to be displayed , dr ive immed ia tely to a n author­
iz ed Audi dea ler or author ized Audi S ervic e Facili­
ty to ha ve the m alfunc tion re paire d.
Audi drive select
Introduction
Applies to : vehicles wit h Audi drive se lec t
Audi dr ive select makes it poss ible to experience
diffe rent types of vehicle settings in one vehicle.
T he dr iver can select from three modes,
Comfort ,
Auto
and Dynamic , using t he r:;~, bu tton in the
c en te r c onsole o r by usin g the Info ta in m ent sys­
te m. T hi s a llow s yo u t o swi tch between a sporty
and a com fo rt ab le driv ing mode, fo r ex am ple. In
t h e
Individual* mode , the settin gs ca n be adjus t­
ed to yo ur persona l preferences . T his makes it
p oss ible to com bine settings such as a spo rty en­
gine setting with light steer ing.
Description
App lies to : vehicles wi th Audi drive se lect
The veh icle set up i n eac h mode depends on the
vehicle's features. However, the eng ine a nd
stee ring are always affec ted .
Engine and automatic transmission
Depend ing on the mode, the engine an d auto­
matic transm ission* respond more q uickly o r in a
more ba la nced manner to acce lerato r pedal
movements . In the sporty dynam ic mode, th e
t ransm iss io n shifts at higher spe ed ranges .
..,.
143

Care and cleaning
A WARNING
- Only wash the vehicle when the ignition is
off and follow the instructions from the car
wash operator to reduce the risk of acci­
dents.
- To reduce the risk of cuts, protect yourself
from sharp metal components when wash­
ing the underbody or the inside of the wheel
housings.
-After washing the vehicle, the braking effect may be delayed due to mo isture on the
brake rotors or ice in the winter. This in­
creases the risk of an acc ident. The brakes
must be d ried first w ith a few careful b rake
applications.
(D Note
- If yo u wash the ve hicle in an automatic car
wash, yo u m ust fold the exte rior m irrors i n
to reduce the risk of damage to the mir rors.
Power folding exte rior mir rors* mus t onl y
b e fo lded i n and ou t using the powe r folding
funct ion .
- T o reduce t he risk of paint damage, do no t
wash the vehi cle i n dire ct sunlig ht.
-
- To red uce the risk of damage, do not wash
the power top* with a pressure washer.
- T o reduce the risk of damage to the s urface,
do not use insect removing sponges, kitchen
sponges o r similar items .
- Mat te finish painted vehicle components:
- To reduce the r isk of damage to the sur-
face, do not use polis hing agents or hard
wax.
- Never use protective wax. It can destroy
the matte finish effect .
- Do not place any stickers or magnetic
signs on vehicle parts painted with matte
finish paint. The paint could be damaged
when the stickers or magnets are re­
moved.
@ For the sake of the environment
Only wash the veh icle in facili ties spec ially de­
s igned for that pu rpose. This will reduce the
r isk of dirty wate r contam inated with o il from
ente ring the sewe r system.
Cleaning and care information
W hen clea ning and ca ring for individua l vehicle
components, refer to the fo llowing t ables. The
i n fo rmation conta ined there is s imply recom ­
mendations. Fo r quest ions or for components t
h at are not listed, cons ult an au tho rize d Aud i
de aler or au thor ized A udi Service Fac il ity. Also
f o llow the information fo und
in <=> .&. .
Ext erior cleaning
Component Situation Solution
Wind shield wiper
Deposits <=> page 58, Cleaning the wiper blades
blades
Headlights /
Deposits Soft sponge wi
th a m ild soap so lutiona)
Tail lights
Sensors /
Deposits Sensors: soft cloth with solvent-free cleaning solut ion
camera lens es Camera lenses: soft cloth w ith alcohol-free cleaning solu-
tion
Snow/ice Hand brus
h/solvent-free de -icing spray
Wheels Road salt Water
Bra ke dust Acid-free special clean
ing solution
348