light AUDI A3 2015 Workshop Manual

88 Audi adaptive cruise control
you can have the adaptive cruise control
me nu extende d I enabled from an autho r­
ized re pair faci lity.
Setting the driving program
Applies to vehicles: with Audi adaptive cruise control
A adaptive cru ise control driving program is
adjustab le on vehicles without Aud i drive se­
lect* .
.. Se lect in the MMI:
!MENUI button> Systems
or Car systems > Driver assistance > Adap·
tive cru ise control
> Driving program >
comfort /standard /dynamic .
Selecting the driving mode
App lies to vehicles: with Audi adaptive cruise control
The adaptive c ruise co ntro l dr iv ing prog ram is
ad justa ble for ve hicles w ith Au di drive se lect
usi ng the dr iv ing mode.
.. Se lect t he des ired driv ing mod e
comfort ,
auto , dynamic
or individual* with the knob
¢ page 10 2.
Request for driver intervention
App lies to vehicles: with Audi adaptive cruise control
Fig . 7 9 In st rum ent clus ter : d river interve ntio n re qu est
In some s ituations, the braki ng from the
adapt ive cr uise control system is not enoug h
to maintain enoug h distance to the object
a head . In these situations, the system will re­
q ues t yo u to take action .
The . indicator light and the graphic in the
d isplay w ill wa rn you about the danger
¢
fig. 79. You will a lso hear a n aud io signa l.
P ress the br ake pedal to s low y our veh icle
do wn .
Driver messages
Applies to vehicles: wit h Aud i adapt ive c ru ise control
IIJ ACC : unavailable
The system cannot gu arantee that it will de­
tect o bject s cor rectly and i s switched off. The
sens or was m ove d or is fa ulty. Drive to your
autho rize d Audi dea le r or a uth ori zed Audi
service facility immediately to have the ma l­
f unct ion corrected .
Ill ACC: currently unavailable . No sensor vi·
sion
fl ACC and Audi pre sense : currently un ­
available. No sen sor vision
T h is message appears if the senso r view is ob·
structe d, for examp le by l eaves, snow, heavy
s pr ay or d irt . C lean t he sensor ¢
page 82,
fig. 70 .
ill ACC: currently unavailable. Gradient too
steep
The road exceeds t he max imum possible an­
gle fo r safe adaptive cruise control operation.
T he adapt ive cr uise control cannot be switch­
ed o n.
ill ACC: only available in D, Sor M
Se lect the D/S or M selector leve r position .
ill ACC: parking brake applied
The adapt ive cr uise control system switch es
off automa tically if th e parki ng br ake is set.
T he adapt ive cru ise con tro l is ava ilable again
aft er re leas ing t he pa rking br ake.
ill ACC: currently unavailable. Stabilization
control input
This message appears if the Electronic Stabili ­
zation Control (ESC) is taking action to stab i·
l ize the veh icle. I n this case, adapt ive cr uise
control switches off automat ica lly .
ill ACC off: manual control!
This message a ppears if t he vehicle ro lls back
whe n start ing on a s light incline, even though
ACC is active. Press the b rake pedal to prevent
the vehicle from rolling or starting to move. .,.

90 Audi pre sense
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 via a network of different
vehicle systems and can take steps to prepare
the vehicle occupants for a potential collision.
The pre sense front works with a radar sensor
and a video camera*.
It also functions within
the limits of the system when adaptive 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 82, 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 10 mph (30 km/h) or higher.
The following functions can be triggered un­
der certain conditions within the limits of the
system:
- Tensioning of the safety belts (for example,
during heavy braking) : The front safety belts
have reversible belt pretensioners. If a colli­
sion does not occur, the safety belts loosen
slightly 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 deployment time is
adapted in dynamic mode.
A WARNING
-The pre sense basic cannot overcome natu- ral physical laws.
It is a system designed to
assist and it cannot prevent a collision. Do not let the increased safety provided
tempt you into taking risks. This could in­
crease your risk of a collision.
- The system can deploy incorrectly due to system-specific limits .
(D Tips
-Certain pre sense basic functions switch
off when ESC is switched off (sport
mode) or when driving in reverse .
- The pre sense basic functions may not be
available if there is a malfunction in the
ESC system or the airbag control mod­
ule .
- Note that with pre sense basic, 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 you 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 situations where an object ahead
brakes suddenly or if your own vehicle is trav­
eling at a high speed and approaching an ob ­
ject that is moving more slow ly . If detection is
not possible, then pre sense front does not re ­
act.

Warnings
Applies to vehicles: with Audi pre sense fro nt or Audi
adaptive cruise control
Fig . 80 Instrument cluster: approach warning
The system recognizes various dangerous sit­
uations:
- 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 object ahead brakes strongly,
you would not be able to avoid a collision.
The ind icator light . indicates this.
- The
approach warning occurs when an ob­
ject ahead is traveling more slowly or brakes
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 . 80 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. 80. 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 speed in the event of a col-
l l This is not available in some countries .
Audi pre sense 91
lision. The message Audi pre sense -Input
also appears.
- 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 82, 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 cause collisions,
other accidents and serious personal in­
juries. The pre sense front is an assist
system and cannot prevent a collis ion by
itself. The driver must always intervene.
The driver is always responsib le for brak­
ing at the correct time.
- Always pay close attention to traffic,
even when the pre sense front is switch-
ed on. Be ready to intervene and be ready .,_

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

Switching on and off
Applies to vehicles: with Audi active lane assist
•
Fig. 81 Turn signal lever: butto n for act ive la n e ass ist
Fig. 82 Windsh ield: ca mera w indow for act ive lane as ­
s is t
.. Press the~ fig. 81 button to switch the sys­
tem on and off. The . or. indicator light
in the instr ument cluster turns on or off.
Indicator lights
• Ready:
The indicator light turns on when
the system is ready for use. The system can
now be operated .
• Not Ready : The indica tor light turns on if
the system is switched on but is inoperable.
This may be due to the following reasons:
- There is no lane boundary line.
- The relevant lane marker lines are not de-
tected (for example, markings in a construc­
tion zone or because they are obstructed by
snow, dirt, water or light ing) .
- The vehicle speed is below the activation
speed of approximately 40 mph (65 km/h)
(the speed may vary depending on your
country) .
- The lane is narrower than 8
ft (2 .5 m) or
wider than 18
ft (5.5 m).
- The curve is too narrow.
Audi active lane assist 95
-The driver's hands are not on the steering
wheel.
a) Tips
- Make sure the camera's field of view
~ fig. 82 is not obstructed by stickers or
other objects. For information on clean ­
ing, see¢
page 201 .
-Market-specific: In certain countries: If
the system is switched on, it wi ll remain
operab le each time the ignition is switch­
ed on.
lane assist display in the instrument
cluster
Applies to vehicles: with Audi active lane assist
Fig. 83 Ins trumen t cluster: monoc hrome d ispl ay
Fig. 84 Instrume nt clust er: mult icolored d isp lay
The lane assist display can be called up using
the buttons in the
multifunction steering
wheel* ¢
page 27.
Monochrome display
Refer to ~ fig. 83

96 Audi active lane assist
@ So lid lines: act ive la ne assist is sw itch-
ed on and ready to provide wa rn in gs on
t he s ide th at is indica ted.
@ B linking lines ( left or right): active lane
assist is warning you by a vibration in
t he stee ring wheel that yo u are l eaving
t h e l ane.
® Unfilled line(s): active lane assist is
switched on but is not rea dy to prov ide
warnings.
N o lines: t he active lane assist is
switched
off .
Multicolored display
Refe r to¢ fig. 8 4
@ Solid white lines : active la ne assist is
switched on and ready to provide warn-
ings on the side that is ind icated.
@ Red lin es (left or r igh t): ac tive lane as-
sis t is warning you by a vibration in t he
steering whee l th at you a re leav ing the
lane.
® Gray unfilled lines: active lane ass ist is
s witched on but is not ready to prov ide
w ar nings.
N o lines: the active lane assist is
switched
off.
Messages in the instrument cluster
display
I f the active lane ass ist has a mal func tion, the
B indicato r light in the inst rumen t cluste r
di spl ay t urn s
off and one of the followi ng
me ssages appe ars:
Audi active lane assist: currently not avai la ­
ble. No camera view
This message appears if the camera is unable
to detect the li nes . This co uld happe n if:
- The came ra field of view ¢
page 95, fig. 82
is dirty o r covered i n ice. Clean the area on
t h e windshie ld.
l ) Thi s function is not available in all cou ntr ies.
- The camera field o f view is fo gged ove r. Wa it
until the fog has cleared before switching
the act ive lane assist on agai n.
- The system has bee n una ble to detect t he
lanes for an exten ded period of t ime due to
road conditions. Switch the active lane as­
sist bac k on when the lines are more v is ible.
Audi active lane assist: currently unavailable
T he re is a te mporary a ct ive lane assis t mal­
f unc tion. Try swi tching the active lane assi st
o n again later .
Audi active lane assist: system fault!
Drive to an authorized A udi dealer or qualified
repair fac ility immediately to have the mal­
funct ion corrected.
B Audi active lane assist: Please continue
steering vehicle!
T his messa ge ap pears if yo u are not stee ring
by yoursel f. If th is is t he case, act ive lane as ­
s ist does not switch
off, but it is "not ready" to
provide a warning. The system can help you
kee p the vehicle in the lane. However, yo u are
r esponsible for dr iv ing the vehicle and must
stee r it yourse lf .
Adjusting the steering time and
vibration warning
App lies to veh icles: w ith Audi ac tive la ne ass ist
You can adju st individual active lane assis t
se ttings in the MMI.
"' Select: !ME NUI button> Systems cont ro l
but to n or
Car sy stem s > Driver assistance >
Audi active lane assist .
Steering timel)
Early :
in this setting, the correct ive steering
happens con tinuously to he lp keep the vehicle
i n t he c ent er of t he lane.
Late : in this setting, the system provides cor ­
rect ive steer ing just befo re a vehicle whee l
touches a detected lane marke r line . ..,.

102 Audi drive select
Audi drive select
Driving settings
Introduction
Applies to vehicles: with Audi drive select
Aud i d rive select makes it possibl e to expe ri­
e nce diffe ren t types of vehi cle sett ings in o ne
ve hicl e. The dr ive r can se lect from three
c om­
fort , auto and dynamic modes using the t.'i:.:1
button in the center conso le or the MM I to
switch between a sporty an d a comfortable
driving mode, for examp le. In the
individual *
mode, the sett ings can be ad justed to your
pe rsonal preferences. This makes it poss ib le
to comb ine settings such as a sporty eng ine
tuni ng with lig ht steer ing.
A WARNING ,_ -
Im prope r use of the A udi drive select can
ca use colli sion s, oth er a cciden ts an d se ri­
ou s pe rson al injury.
Description
Applies to vehicles: with Audi drive select
The vehicle setup in each mode depends on
the vehicle's features. However, t he engine
and steering are always affected .
Engine and automatic transmission*
Depe nding on t he mode, the e ng ine and au to­
mat ic tra nsm iss ion * respond more quickly or
in a more b alance d manner to acce lerator
pedal movements.
Adaptive dampers (Audi magnetic ride)*
The adaptive da mpers use senso rs to reco rd
i nfo rmat ion rega rding s teering moveme nts,
b rak ing and a cce le ra ti on operat ions by t he
d river, road s urface, driving speed, an d load.
W ith Aud i drive se lect yo u can adjust the
adaptive dampe rs sporty (dynamic), comfort­
ab le (comfort) or balanced (auto).
Steering
T he stee ring ad apts in te rms o f stee ring assis­
tance . There are different modes
~page 103 .
Indirect stee ring that moves eas ily as in com- f
ort mode is espec ially suited to long drives
o n a hig hway. The dynam ic mode provi des
spo rty, direct steering.
F o r vehicles wi th progressive stee ring * the
stee ring pe rformance is mo re agile.
Cornering light*
T he co rne ring light adjusts when driv ing on
c u rves a t speeds between 6 mph ( 10 km/h)
and 68 mph (1 10 km/h). The pivo ting act io n
and the light ing a re a lso adapted to the
mode.
Adaptive cruise control*
T he be hav ior when accelerating can be adjust­
ed from comfor tab le to spor ty, depend ing on
t h e Au di drive sele ct mo de. Ad aptive cr uise
control also responds to the driv ing behavior
of the vehicle ahead in a more co nservative or
spo rty manne r.
(D Tips
In some mo dels, the maxim um vehicle
speed can on ly be reache d in t he a uto and
d ynam ic modes.

Selecting the driving mode
Applies to vehicles: with Audi drive select
You can choose between comfort, auto, dy­
namic and individual* .
Fig. 89 Center conso le : drive select button
Fig. 90 MMI: dr ive se lect
.. To set the mode, press the ~:/:a button
N
-N 0 ::> a, Q)
Q fig . 89 repeatedly until the desired mode
is d isplayed in the instrument cluster . Or
Adjusting the Individual mode Audi drive
select 103
.. Select in the MMI: I MENU I button > Systems
or Car systems > comfort, auto, dynamic or
individual*.
You can change the driving mode when the ve­
hicle is stationary or while driving. If traffic
permits, after changing modes, briefly take
your foot off the acce lerator pedal so that the
recently selected mode is also activated for
the engine .
comfort -provides a comfort-oriented vehicle
setup and is suited for long drives on high­
ways.
auto -provides an overal l comfortable yet dy­
namic driving feet and is suited for every day
use.
dynamic -gives the driver a sporty driving fee l
and is suited to a sporty driv ing style .
individual * -¢ page 103.
The last chosen mode is retained when the ve­
hicle is started aga in .
.&_ WARNING
Pay attention to traffic when operating the
drive select to prevent potential risk of an
accident.
You can adjust the vehicle settings to your personal preferences .
.. Select: IM ENU I button > Systems or Car sys­
tems > Set individual
control button. Once
you select the menu, you will automatica lly
drive in the
individual* mode.
After you have closed the settings, yo u are au­
tomatically driving in the
individual* driving
mode .
Systems comfort
Engine
and transmission comfortable
Steering comfortable
Cornering light* comfortable
Audi adaptive cruise control* comfortable The
equipment in your vehicle will determine
which settings you can adjust . The following
table gives an overview of the characteristics .
auto dynamic
balanced sporty
ba lan ced sporty
ba lanced sporty
ba lanc ed sporty

Automatic
transmission S tronic-transmission
Introduction
Applies to vehicles: with S tronic transmiss ion
Your vehicle is equipped with an electronical­
l y -controlled DSG transmission called S tronic.
T wo independent clutches transfer the power
between the engine and transmission. It al­
lows the vehicle to accelerate without a no­
ticeable interruption in traction .
T he transmission upshifts or downshifts auto­
matically. The driving style continuously influ­
ences the selection of the driving program .
When a
moderate driving style is used, the
transmission selects the most econom ica l
driving mode. The transmission upshifts at a
lower RPM and downshifts at a higher RPM to
improve fuel effic iency .
T he transmission switches to a sporty mode
after a kick-down or when the driver uses a
sporty driving style characterized by quick ac­
celerator pedal movements, heavy accelera­
tion, frequent changes in speed and traveling
at the maximum speed.
If desired, the driver can also select the gears
manually (tiptronic mode) r=> page 110,
Shifting manually (tiptronic mode) .
Selector lever positions
Applies to vehicles: with S tro nic transmission
Fig. 91 Instrument cluster: selector leve r positions
The instrument cluster display shows the cur­
rent selector lever position and current gear .
Automatic transmission 105
P -Park
The wheels are mechanically locked in this po­
sition. You can only shift into Park when the
vehicle is
stationary r=> &..
To shift in and out of the P selector lever posi­
tion, press the interlock button in the selector
lever
while pressing the brake peda l.
R- Reverse
Only shift into reverse gear when the vehicle is
stationary and the engine is running at idle
speed
r=> &. .
To select the R selector lever position, press
the interlock button
while press ing the brake
pedal. The back-up lights sw itch on in the R
pos ition if the ignition is switched on .
N -Neutral
The transm iss ion is in idle in this position .
DIS -Normal position for driving forward
In the D/S selector lever position , the trans ­
mission can be operated either in the normal
D mode or in the S sport mode. To select the S
spor t mode, pull the selector lever back brief­
ly. Pulling the lever back again will select the
normal D mode . The instrument cluster dis­
play shows the selected driving mode.
In the
normal mode D, the transmission auto­
matically selects the suitable gear ratio . It de­
pends on engine load, vehicle speed and driv­
ing style .
Select the
sport mode S for sporty driving .
The vehicle makes full use of the eng ine's
power. Shift ing may become noticeable when
acce lerat ing.
To move from selector lever position N to D,
you must press the brake pedal and the vehi­ cle must be traveling less than 1 mph (2 km/
h) or be stationary~ &.-
.&_ WARNING
Read and follow all WARNINGS.
- The vehicle can roll even if the ignition is
switched off. ...
.__ _____________ __J ....
•

lock engages if the lever stays in the N posi­
tion longer than approximately 2 seconds
when the brake pedal is not pressed.
Interlock button
The interlock button in the selector lever han­
d le prevents you from moving the selector
l ever inadvertently while in some selector lev­
er positions. The positions that require the in­
ter lock button to be pressed are marked in
color in the illustration
c;, fig. 92.
Ignition key safety interlock*
You can only remove the key from the ignition
after switching the ignition off if the se lector
lever is in the P position. The selector lever
will be locked in the P position as long as the key is not in the ignition .
A WARNING
Read and follow all WARNINGS c> .&. in Se­
lector lever positions on page 105 .
@ Tips
-If the se lector lever does not engage,
there is a malfunction . The engine is dis­
abled to prevent the vehicle from driving
off unintentionally . To allow the selector
le ver to engage again, proceed as fol­
l ows: Press the brake pedal b riefly.
- If the vehicle does not move forward or
i n reverse even though a drive position is
se lected, proceed as follows:
- >If the veh icle does not move in the de­
s ire d direction, the system may not have
engaged the dr ive position correctly.
Press the brake pedal and select the
drive position again.
- > If the vehicle still does not move in the
desired direction, there is a system mal­
function. See your authorized Aud i dea l­
er or qualified repair facility for assis­
tance to have the system checked.
Autom atic transm ission 107
Driving tips
Applies to vehicles: with S tronic transmission
The transmission shifts up and down auto­
matically when in the driving gears.
Fig. 93 Section of the center co nsole: selector leve r
w ith inte rlock b utto n
The engine will only be able start when these­
lector lever is in the P or N positions. At low
temperatures (below 14 °F (-10 °C)), the en­
gine can only be started when the selector
lever is in the P position.
Starting from a stop
.,. Press and hold the brake pedal.
.,. Press and hold the interlock button in the
selector lever handle, select the desired se ­
lector lever pos ition such as D
c;, page 105
and release the lock button.
.,. Wait a moment until the transmission
shifts . Yo u will notice a slight movement
when the gear engages.
... Release the brake peda l and press the acce l­
erator pedal
c;, .&_ .
Stopping temporarily
.,. Keep the vehicle stationary using the brak­
ing pedal, for example at traffic lights.
.,. Do not press the accelerator peda l when do­
ing this .
.,. To prevent the vehicle from ro lling when you
start driving, set the parking brake when
stopping on steep inclines
c;, .&. -
.,. The parking brake will release automat ically
and the vehicle will start moving once you
press the acce lerator pedal. Requ irements :
The driver's safety belt must fastened and
the driver's door must be closed.
IJll,-