2017 AUDI A3 SEDAN brakes

Ass is tan ce sys tems
speed and the distance between your
vehicle and other vehicles.
- For safety reasons, cruise control should not
be used in the city, in stop-and-go traffic, on
winding roads and when road condit ions are
poor (such as ice, fog, gravel, heavy rain and
hydroplaning), because th is increases the
r isk of an accident.
- Switch the cruise control off temporar ily
when driving in turn ing lanes, h ighway exits
or in construction zones.
- Please note that unconsciously "resting" yo ur foot on the accelerator pedal prevents
the cruise control from braking. This is be­
ca use p ressing the acce le rato r pedal ove r­
rides the c ruise contro l system.
- If a bra ke system ma lf u nction such as over­
heating occu rs when the c ruise contro l sys­
tem is sw itched on, the braking function in
the system may be switched off . The rest of
the cr uise control system f unctions remain
active as long as the
(lj;(i)~i~ (USA models) /
Bl (Canada models) indicator light is on.
(D Note
Before driving downhill a long distance on a
steep hill, decrease your speed and select a
lower gear. Th is makes use of the eng ine
braking effect and relieves the brakes.
@ Tips
The brake lights turn on when the brakes a re
activated.
Changing the speed
A pp lies to: ve hicles w ith c ruise contro l system
.,. To increase or decrease the speed in incre­
ments,
tap the lever in the 0 10 d irection
¢ page 123, fig . 127 .
.,. To inc rease o r decrease the speed quickly, hold
the leve r in the 0 / 0 direct io n until the de­
s ir ed speed is reached.
124
' Overriding the speed
App lies to : vehicles wit h cruise co ntrol system
You can press the acce lera to r pedal to increase
you r speed, fo r example if you want to p ass
someone. The speed you set ear lier will resume
as soon as you release the acce lerator pedal.
However, if yo u are d rivi ng considerably faste r
t h an the s to red speed for a lo ng period of time
time, the cr uise con trol sys tem w ill temporari ly
switch off . The
(lj;(i)~i~ (USA models) !Bl (Canada
models) indicato r light in the instrument cluste r
turns off and the stored speed is maintained.
Preselecting a speed
App lies to : vehicles wi th cruise co ntrol system
You can pre -select your desired speed when the
vehicle is stationary.
.,. Switch the ignit io n on.
.,. Pull the lever into position (D ¢ page 123,
fig. 127 .
.,. To increase or decrease the speed, tap the lever
in the
0 10 direction.
This function makes it possible, for example, to
save the speed you want before d riving on t he
highway. Once on the highway, activate the
cruise contro l system by pu lling the lever toward
the position
(D .
' Switching off
App lies to: vehicles wit h cruise co ntrol system
Deactivating temporarily
.,. Press the brake pedal, or
.,. Press the lever into position @ (not clicked into
place) ¢ page 123, fig . 12 7, or
Switching off completely
.,. Press the lever into position @(clicked into
place), or
.,. Switch the ignit io n off.
The speed you stored will be maintained if the cruise contro l has been switched off temporarily .
To resume the stored speed, release the brake pedal and pull the lever to position
(D . ..,.

Assistance systems
(D Tips
-A maximum of 30 lap times (ana log instru­
ment cluster) or 99 lap t imes (Audi virtual
cockpit*) can be measured.
- If timing is paused, you can continue it later
even if you switch the ignition off.
- Saved lap times cannot be individually de­
l eted from the total resu lts.
- The saved lap timer values will remain after
switching the ignition off .
Lap statistics
Applies to: vehicles with lap timer
Display ing lap statistics
You can d isplay the number of laps driven, the
fastest lap" +", the s lowest lap" -", and the aver­
age time
"0" in the instrument cluster.
~ Applies to: vehicles with analog instrument
cluster: select
Statistics in the menu using the
multifunction steering wheel.
~ Applies to: vehicles with Audi virtual cockpit: on
the multifunction steering wheel, select: left
control button
> Lap statistics or Statistics .
~ Turn the thumbwheel down or up to display the
individual lap times.
~ To retur n to the lap t iming that was begun,
press the left thumbwheel.
Resetting lap statistics
Applies to: vehicles with Audi virtual cockpit
~ On the multifunction steer ing wheel, select:
the right control button
> Reset statistics.
(D Tips
- The lap statistics list the lap times for the
last 30 laps.
-Applies to: vehicles with Audi virtual cock­
pit: the fastest and slowest lap times from
up to 99 timed laps will be disp layed.
126
Audi adaptive cruise
control
Description
Applies to: vehicles with Audi adaptive cruise control
Fig. 128 Detect ion range
-0
> (0 (0
The adaptive cru ise control system is a comb ina­
tion of speed and dis tance regu lation.
It ass ists
the d river by both regulating the speed and
maintaining a distance to the vehicle driving
ahead, within the limits of the system. If the sys­
tem detects a vehicle driving ahead, the adaptive
cruise contro l can brake and accelerate your vehi­
cle. Th is increases driving comfort during long
trips on highways and in stop-and-go traffic.
What can adaptive cruise control do?
The adaptive cruise control system uses radar.
The radar is sub ject to designated system lim its
q poge 127.
On open roads with no traffic, it functions like a
cruise contro l system. The stored speed is main­
tained. When approaching a vehicle ahead and
the system detects it, the adapt ive cru ise control
system automatically brakes to match that ob­
ject's speed and then maintains the stored dis­
tance. As soon as the system does not detect a
vehicle driving ahead, adaptive cruise contro l ac­
celerates up to the stored speed.
Within the limits of the system, adaptive cruise control can brake in stop-and-go traffic until the
vehicle is stat ionary and then begin driving agai n
under certain
conditions ~ page 130, Driving in
stop-and-go traffic.
ll>

Assistance systems
In curves
Applies to: vehicles with Audi adaptive cruise contro l/Audi pre
sense front
Fig . 130 Example: dr iv ing into a curve
When driving into a curve r:!;> fig. 130 and out of a
curve, the system may react to a vehicle in the
ne ighbor ing lane and apply the brakes. You can
prevent that by pressing the accelerator pedal briefly .
Stationary vehicles
Applies to: vehicles with Audi adaptive cruise control
))))
Fig. 131 Example: veh icle changing lanes and stationary
veh icle
Adaptive cruise control
The adaptive cruise control system only reacts to
ve hicl es that being moving or to vehicles that the
system has already detected as moving. For ex­
ample, it can reac t when a vehicle that has al­
ready been detected
@turns or changes lanes,
but adaptive cruise control does not react to a
stationary vehicle @. Press the brake pedal to
slow the vehicle down.
128
Switch ing on /off
Applies to: vehicles with Audi adaptive cruise control
Fig. 132 Ope rating leve r: sw itching on and o ff
Fig. 133 Instrument cl uste r: ad apt ive c ruise contro l
ACC: you can set any speed between 20 and 95
mph (30 and 150 km/h) .
Indicator lights and messages in the instrument
cluster disp lay inform you about the current sit­
uation and setting .
Switching adaptive cruise control on
.,. Pull the lever toward you into position@
¢ fig. 132. ACC: standby appears in the instru­
ment cluster display.
Storing the speed and activating regulation
.,. To store the current speed and activate the reg­
ulation, p ress the
ISE TI button ¢ fig. 132 r:!;> .&,.
The stored speed is shown in the tachometer
LED line @and appears briefly in the informa­
tion line ®
Q fig. 133.
.,. To activate the regulation while stationary, you
must press the brake pedal.
Switching adaptive cruise control off
.,. Push the lever away from you into position @
until it clicks into place . The message ACC: off
appears .

a, a, ..... N
" N ..... 0 N > 00
The stored speed in the LED line is erased.
@ Indicator lights
It -Adaptive cruise control is switched on. No
vehicles are detected ahead. The stored speed is
maintained .
B-A vehicle driving ahead was detected. The
adaptive cruise control system regulates the
speed and distance to the vehicle ahead and
brakes/accelerates automatically.
r51 -Adaptive cruise control is switched on. Ave­
hicle was detected ahead. Your vehicle remains
stopped and will not start driv ing automat ically.
•-The automatic braking is not enough to
maintain a sufficient distance to a veh icle driving
ahead. You must intervene
c::> page 132, Driver
intervention request.
@ Instrument cluster display
I f adaptive cruise control is not shown in the in­
strument cluster display, yo u can call it up using
the mu ltifunction steering wheel buttons
c::> page 13.
Based on the g raphics in the disp lay, you can de­
termine if the system is maintaining a distance to
a vehicle ahead and what that distance to th is ve­
hicle is:
No vehicle -no vehicle was detected driving
ahead.
Silver vehicle -a veh icle was detec ted dr iv in g
ahead .
Red vehicle -request for driver intervention
<=:>page 132 .
The five distance bars on the gauge © represent
the set d istance (refer to
c::> page 131 for infor­
mat ion on how to change the distance) .
If you
fal l below the selected distance, the distance
bars become red from the bottom upward.
A WARNING
If you press the !SETI button when driving at
speeds below 20 mph (30 km/h), the vehicle
accelerates automatically up to 20 mph (30
Assistance systems
km/h), which is the minimum speed that can
be set.
(D Tips
-If you switch the ignition or the adaptive
cruise control system off, the set speed is
erased for safety reasons .
-The e lectronic stabilization control (ESC)
and the anti-slip -regulation (ASR) are auto­
matically switched on when the adaptive
cruise control is switched on.
Changing the speed
Applies to: vehicles with Audi adaptive cruise control
0
f
J
0
Fig. 134 Operat ing lever: changing the speed
.. To increase or decrease the speed in incre­
ments,
tap the lever in the 0 10 direction .
.. To increase or decrease the speed quickly, hold
the lever toward 010 until the red LED @
c::> page 128, fig. 133 reaches the desired
speed.
You can also preselect the speed when adaptive cruise control is not active by moving the lever in
the desired direction
0 10 . Act ivate the previ­
ously selected speed by pulling the lever into po­
s ition
@ c::> page 128, fig . 132.
After each change, the new stored speed appears
briefly in the status line
c::> page 128, fig. 133 ®·
When adaptive cru ise control is active, the ill or
• indicator light turns on, and when adaptive
cruise control is not active, the
ill ind icator light
turns on. In the Audi virtual cockpit*, the
II indi­
cator light t urns on instead.
129

a, a, ..... N
" N ..... 0 N > 00
Inte rr upting crui se control while driving
• Move the lever into posit ion @. The message
AC C: standb y appears. Or
• press the brake pedal.
• To resume the stored speed, move the lever in­
to position
@ .
In te rrupting crui se contr ol when stopped
• Push the lever away from you into position @.
The message
A CC: sta ndb y appears.
• To resume cruise control, press the brake pedal
and pull the lever toward you into position @.
A WARNING
It is dangerous to activate cruise control and
resume the stored speed when the current
road, traffic or weather conditions do not per­
m it this . This inc reases the risk of an acc ident.
Setting the distance
Applies to: vehicles with Audi adaptive cruise contro l
,
0
Fig. 137 Operat ing lever : setting the d istance
• Tap the switch to display the current set dis­
tance
¢fig. 137 .
• To increase or reduce the distance in incre­
ments, tap the switch upward/downward
again. The d istance between the two vehicles
wi ll change in the instr ument cluster d isp lay.
When approach ing a vehicle driving ahead, the
adapt ive cruise control system brakes to match
that vehicle's speed and then adjusts to the set
d istance.
If the vehicle dr iv ing ahead ac celerates,
then the adaptive cruise control wi ll also acceler­
ate up to the speed that you have set.
The higher the speed, the greate r the d ista nce
¢ &, .T he Di stan ce 3 setting is recommended.
A ss is ta nce syst ems
That is equal to the general recommendation of
"ha lf the speed shown on the speedometer".
T he distances provided a re specified values. De­
pend ing on the driv ing s ituation and how the ve­
hicle ahead is d riving, the actua l distance may be
more or less than these target distances.
If you change the time gaps, the newly set value
appea rs briefly in the instrument cl uster d isplay,
f or example
II for Di stan ce 3 . This only occurs if
the adaptive cruise contro l is not current ly shown
i n the display ¢
page 128, fig. 133.
Dista nce 1 : this setting corresponds to a distance
of 92 feet (28 meters) when traveling at 62 mph
(100 km/h), or a time distance of 1 second.
Di stance 2 : this setting corresponds to a dist ance
of 118 feet (36 mete rs) when traveling at 62
mph (100 km/h), or a time distance of 1.3 sec ­
onds .
Distance 3: this setting corresponds to a distance
of 164 feet (SO mete rs) when traveling at 62
mph (100 km/h), or a time distance of 1.8 sec ­
onds .
Distance 4 : this setting corresponds to a dist ance
of 219 feet (67 mete rs) when traveling at 62
mph (100 km/h), or a time distance of 2.4 sec ­
onds .
Distance 5 : this setting corresponds to a distance
of 328 feet (100 meters) when traveling at 62
mph (100 km/h), or a time distance of 3.6 sec ­
onds .
A WARNING
-
When setting the distance, the driver is re -
sponsible for adhering to any applicable legal
regulations.
(D Tips
Your settings are automatically stored and as­
signed to the remote control key being used.
131

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
;
::c

CXl CXl .... N r--­N .... 0 N > 00
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.