2018 AUDI A3 SEDAN lane assist

Assistance systems
Appl ies to: vehicles w ith Audi side assist
If you activate a turn signal when active lane as­
sist is ready and it classifies a lane change as crit­
ical because of vehicles traveling alongside you or
approaching you, there will be noticeable correc ­
tive steering shortly before you leave the lane.
This will attempt to keep your vehicle in the lane .
Applies to: veh icles without Audi s ide ass ist
The system will not warn you before crossing a
lane marker line if you have activated the turn
signal. In this case, it assumes that you are
changing lanes intentionally.
A WARNING
-The system warns the driver that the vehicle
is leaving the lane using 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. Al­
ways keep your hands on the steering
wheel.
- Corrective steering may not occur in certain
situations, such as during heavy braking.
- There may be cases where the camera does not recognize all lane marker lines . Correc­
tive steering can only take place on the side of the vehicle where lane marker lines are
detected.
- Other road structures or objects could possi­
bly be identified unintentionally as lane
marker lines. As a result, corrective steering
may be unexpected or may not occur.
- The camera view can be restricted, for ex­
ample by vehicles driving ahead or by rain,
snow, heavy spray light shining into the
camera or by dirt on the window. This can
result in active lane assist not detecting the
lane marker lines or detecting them incor­
rectly.
- Under certain conditions such as ruts in the
road, an inclined roadway or crosswinds, 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 there are poor road and/
or weather conditions such as slippery
134
roads, fog, gravel, heavy rain, snow and the
potential for hydroplaning . Using active lane
assist under these conditions may increase
the risk of a crash .
Switching on/off
Applies to: vehicles with Aud i act ive lane ass ist
Fig. 135 Turn signa l lev er: butto n for active lane assist
Fig. 136 Winds hield: ca mera w indo w for active lane assist
.,. Press the button to switch the system on and
off
q fig . 135. The indicator light in the instru-
ment cluster turns on or off .
IJI,

LL co .... N
" N .... 0 N > co
Analog instru- Audi virtual Meaning on ment cluster cockpit* the corre-
sponding side
Green lines Green li ne(s) Active lane as-
'/ \' (left/right) sist is activat-
'/ 'r ed and ready
to prov ide
warnings.
-Red line Active lane as-
(left/right) sist warns you
'/ \ · before leaving
a lane . In add i-
tion , the steer-
ing wheel vi-
brates lightly.
Yellow lines Yellow line(s) Active lane as-
(left/right) sist is act ivat-
'/ \· ed, but is not
ready to give
warning
If the system is switched on but is not ready to
p rovide warnings, one of the following cou ld be
the cause:
-There is no lane marker line.
-The relevant lane marker lines are not detected
(for example, mark ings in a construction zone
or because they are obstructed by snow, dirt,
water or lighting).
-The veh icle speed is below the activation speed
of approx imately 40 mph (65 km/h) .
-The lane is too narrow or too wide .
-The curve is too narrow.
-The driver's hands are not on the steering
wheel.
@ Tips
-Make sure the camera's field of view
¢ fig. 136 is not obstructed by stickers or
anything else. For informat ion on cleaning,
see
¢ page 354.
-In certain markets: if the system is switched
on, it will switch on automatically each t ime
the ignit ion is switched on.
Assistance systems
Display in the instrument cluster
Applies to : veh icles w it h Audi act ive la ne ass ist
Fig . 137 Ins trumen t cluster: active lane assist is sw it c hed
on and ready to prov ide warnings
You can open the active lane ass ist display using
the buttons in the multifu nction steering wheel
¢ page 13 or¢ page 16.
Display in the in- Meaning on the corre-
strument cluster sponding side
Green li ne(s) Active lane assist is acti-
(left or right) vated and ready to pro-
vide warnings.
Red line Active lan e assist warns
(left or right)
you before leaving a lane.
In addition, the steering
wheel vibrates lightly.
Gray line(s) Act ive lane assist is act i-
(left or right)
vated, but is not ready to
give wa rning
Messages in the instrument cluster display
If the active lane assist sw itches off automatical­
ly, the indicator light in the display turns off and
one of the following messages appears:
Ill Audi active lane assist : malfunction! See
owner's manual
Drive to an authorized Audi dealer or authorized
Audi Service Facility immed iate ly to have the
malfunction corrected .
Ill Audi active lane assist : currently unavaila­
ble. No camera view
This message appears if the camera is unable to
detect the lines. This could happen if:
.,.
135

Ass is tance sy stem s
-The camera field of view ¢ page 134, fig. 136 is
dirty or covered in ice. Clean this area on the
windshield.
-The camera field of view is fogged over. Wait until the fog has cleared before switching the
active lane assist on again.
-The system has been unable to detect the lanes
for an extended period of time due to road con­
ditions. Switch active lane assist back on when
the lines are more visible .
fl1 Audi acti ve lan e ass is t: curr entl y una vailabl e
There is a temporary active lane ass ist ma lf u n c­
tion . Try sw itching the act ive lane assist on aga in
later.
fl1 Aud i activ e lane ass is t: Pl ea se ta ke over
stee ring!
This message appears if you are not steering by
yourse lf . Active lane assist is activated, but is not
ready to give wa rning
.&_ WARNING
Note that messages may be delayed or not
displayed on vehicles with accessor ies mount­
ed on the steering whee l, s uch as a steering
wheel spinner knob . Always keep your hands
on the steering whee l.
Setting the vibration warning
Applies to: vehicles with Audi active lane assist
-
You can adjust individual Audi active lane assist
settings in the Infotainment system .
.. Select in the Infotainment system : I MENUI but­
ton
> Vehi cle > left contro l bu tton > Dri ver a s­
s is tan ce
> Audi active lane as sist .
V ibration warning
You can switch the additional vibration wa rning
in the steering wheel on or off.
.&_ WARNING
-
With the v ibration warning switched off,
there w ill also be no visual warn ing in the in­
strument cluster display when crossing a lane
marker line.
136
@ Tips
Your settings are automatically stored and as­
signed to the remote contro l key being used.
Audi side assist
Description
Applies to: vehicles with Audi side assist
Fig. 138 Sensor detect ion range
Fig. 139 Dis pl ay on t he exterio r mir ror
Side assist (lane change ass ist) helps you monitor
your blind spot and traffic behind your vehicle .
Within the limits of the system, it warns you
about veh icles that are com ing closer or that are
traveling w ith you wi thin sensor range
(D
¢ fig. 138. If a lane change is classified as cr iti­
ca l, the display @in the exterior mirror tu rns on
¢ fig. 139 .
The display in the left exte rior mirror provides as­
s istance when making a lane change to the left,
whi le the display in the right exterior m irror pro­
vides assistance when making a lane change to
the right.
Information stage
As long as you do not act ivate the tu rn signal,
side ass ist
informs you about vehicles that are

LL co ..... N
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detected and class ified as crit ica l. T he disp lay in
the mirror turns on, but is dim .
The display rema ins dim in the info rmat ion s tage
so that your view toward the front is not distur­
bed .
Warning stage
If the d isplay in a m irror blinks br ightly when you
activa te a turn signal, side assist is
warning you
about detected vehicles tha t it has classified as
cr it ic a l. If this happens, check traffic by g lan cing
in th e exterior m irrors and over your shoulder
c::> .&. in General information on page 138 .
Applies to: vehicles with Audi active lane assist
The display in the m irror can also b lin k if you
have not activated a t urn signa l: if yo u are ap ­
proaching a detected lane marker line and it ap­
pears yo u wi ll be leav ing the lane , sid e assist w ill
warn you about detected vehicles that it has clas­
sified as critical.
@ Tips
You can ad just the brightness on of the dis­
play on the rearview mirror
c::> page 138 .
General information
Applies to: veh icles with Audi side assist
F ig . 140 Drivi ng situat ions
A ssi st a nce systems
Fig. 141 Rea r of the ve hicle: pos it io n of t he se nso rs
Side assist funct ions at speeds above approxi­
mately 9 mph (15 km/h).
@ App roaching vehicles
In certain cases, a vehicle w ill be classified as
critical for a lane change even if it is still some ­
what far away . The faster a vehicle approaches,
the sooner the display in the exterior m irro r will
tu rn on.
@ Vehicles traveling with you
Vehicles traveling with you are indicated in the
exter ior mirror if they a re classified as cr it ical for
a la ne cha nge . A ll vehicles detected by side assist
are ind icated by the time they ente r you r "blind
spot" , at the la tes t.
@ Vehicles you are passing
If you s low ly pass a veh icle that s ide ass ist has
detected (the difference in speed between the
vehicle and you r vehicle is less than app roximate­
ly 9 mph ( 15 km/h)) , the disp lay in the exter ior
mir ror tur ns on as soon as the vehicle en te rs yo ur
blind spot .
The display w ill not tur n on if you quickly pass a
vehicle that side ass ist has detected (the diffe r­
ence in speed is grea ter than approximate ly 9
mph ( 15 km/h)) .
Functional limitations
The radar sensors are des igned to detect the left
and right adjacent lanes when the road lanes are
t h e norma l width. In some situa tions, the display
in the exte rior m irror may turn o n even though
t h ere is no veh icle located in the area that is criti-
ca l for a lane change. For example :
..,.
137

Ass is tanc e system s
-If the lanes are narrow or i f you are driving on
the edge of your lane. If this is the case, the
system may have detected a vehicle in another
lane that is
not adjacent to your current lane.
- If you are driving t hrough a curve. Side assist
may react to a vehicle that is one lane over
from the adjacent lane .
- If side assist reacts to other objects (such as
high or displaced guard rails).
- In poor weather conditions . The side assist
functions are limited.
Do not cove r the radar
sensors¢ fig . 141 with
stickers, deposits, bicycle whee ls or other ob ­
jects, beca use they wi ll impair the f unction . Do
not use side assist when towing a trailer. For in­
formation on cleaning,
see¢ page 354 .
A WARNING
-Always pay atte ntion to traffic and to the
area aro und your vehicle. Side assist cannot
r ep lace a dr ive r's attent ion. The dr ive r alone
is a lways responsible for lane c hanges and
s imi lar d riving maneuvers.
- In some situat ions, the system may not
func tion or its f un ct io n may be lim ited. Fo r
exa mple:
- If vehicles are approach ing or being le ft
beh ind very quickly. The display may not
tur n on in t ime.
- In poor weather conditions s uch as heavy
rain, snow or heavy mist.
- On very wide lanes, in tight curves, or i f
there is a rise in the road su rface. Vehicles
in the adjacent lane may not be detected
because they are outs ide of the sensor
range.
@ Note
The sensors can be displaced by impacts or
damage to the bumpe r, whee l housing and
underbody. Th is can impa ir the system. Have
an au thor ized A udi dealer or au tho rized Aud i
Serv ice Facility c heck their fu nction .
(D Tips
- If the window g lass in the driver 's door o r
front passenger's doo r has been t inted, the
138 -
display in the exterior mirro
r may be incor ­
rect.
- For an exp lanat io n on co nform ity w it h t he
FCC reg ulations in the United States and the
Industry Canada regulations, see
¢page 386.
Switching on/off
App lies to : vehicles wit h Audi side ass ist
The system can be switched on/off in the Info ­
tainment system .
If the system is act ivated, the disp lays in the ex­
terior mirrors wi ll turn on brief ly when the igni ­
tion is switched on .
.,. Select in the Infotainment system: IMENU! but­
ton
> Vehicle > l eft control button > Driver as­
sistance
> Audi side a ssist. Off switc hes the
system off.
Setting the display brightness
App lies to: vehicles wit h Aud i side ass ist
The display brightness can be adjusted in the In ­
fotainment system.
.,. Select in the Infotainment system: IMENU ! but­
ton
> Vehicle > l e ft control button > Driver as­
sistance
> Audi side assist.
The disp lay br igh tness adjusts au toma tically to
t h e b righ tness o f the sur ro undings, bo th in the
i nforma tion and in the warning stage. In very
dar k or very bright surroundings, the automatic
adjustment will set the display to the minim um
or max imum level. In such cases, yo u may notice
no change when adjusting the br ightness, or the
change may only be noticeab le once the sur­
r ound ings change .
Adjust the br ightness to a leve l whe re the display
i n the information stage will not disrupt your
v iew ahead. If you change the br ightness, the dis­
play in the exterior mirror w ill br iefly show the
brightness leve l in the i nfo rmation stage . The
br ightness of the warn ing stage is linked to the
br ightness in the infor mation stage an d is adjus t-
ed a long w ith the info rm ation st age .
..,.

Fuses and bulbs
Fuse ass ignment - interior
ij
::, CX) ID
F ig. 298 Vehicle interior: fuse assignment
No. Equipment
Fl Ad Blue engine components
F2 Seat adjustment
F3 Power top hydraulic pump
F4 Infotainment control panel,
Infotainment
components
FS Gateway
F6 Selector lever (automat ic transm iss ion)
Air conditioning/heating controls, auxiliary
F7 heating, rear window defogger relay, tire pressure monitor
Electromechan ical park ing brake switch,
light switch, rain/light sensor, anti-theft
F8 alarm system,
diagnostic connector, roof
module, emergency call system, head light
range control
F9 Steering col umn sw itch module
FlO Infotainment system display
Fll Left vehicle electrica
l system control mod-
ule
F12 Infotainment components
F13 Driver's side safety belt tensioner
F 14 Heat ing/a ir condit ion ing system blower
372
No . Equipment
FlS Electronic
steering column lock
F16 Infotainment components
Fl7 Instrument cluster
Fl8 Rearview camera
Fl9 Convenience access control module
F20 Engine components
F21 Steering column, steering wheel heating
switch module
F23 Panorama glass
roof/power top control
module, power top latch
F24 R
ight vehicle electrical system control
module
F2S Driver
's side front/rear power windows
F26 Seat heating
F27 Interior
lights
F28 Power top control module
F29 Interior lights
F30 Diagnostic connector
F32 Front camera, parking
system, ACC sensor,
lane change assist
F33 Airbag
Hold assist button, interior sound, revers-
F34 i
ng light sw itch, temperature sensor, neck
heating relay coil and socket relay, power
top operation button
Air quality sensor, automatic dimming
F3S rearview
mirror, diagnostic connector, cen-
ter console power supply
F36 Right
headlight (LED, Matrix LED)
F37 Left headlight (LED, Matrix LED)
F38 High-voltage battery
F39 Passenger
's side front/rear power w in-
dows
F40 Sockets
F41 Passenger's sid e safe ty be lt tens ioner
F42 Central locking area
F43 Sound-amplifier
F44 All wheel drive
F47 Rear window wiper
F48 Outer sound actuator

u. 00 .-< N l'­ N .-< 0 N > 00
A
A/C (automatic climate control system)
Accessories
. . .. ................ ...
Active lane assist ..
.. 69
62 ,385
refer to Audi active lane assist . . . . . . . . . 133
Active rollover protection system . . . . . . . . 257
Retracting rollover protection . . . . . . . . . . 257
Adapt ive cruise control
refer to Audi adaptive cruise control . . . . 123
Adaptive light
refer to Audi adaptive light . . . . . . . . . . . . . 49
Adjusting the additiona l display . . . . . . . . . . 15
Adjusting the air d istr ibut ion
Automatic climate control system . . . . . . . 70
Adjusting the air vents . . . . . . . . . . . . . . . . . . 71
Automatic climate control system . . . . . . . 70
Adjusting the sound . . . . . . . . . . . . . . . . . . . 247
Advanced key
refer to Convenience key . . . . . . . . . . . . . . . 76
Airbag .. .. .. .. ............... .. .. .. . 269
Airbag system . . . . . . . . . . . . . . . . . . . . 269, 289
Advanced Airbag System components . . . 276
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Children
Child restraints 296
297
Components (front airbags) . . . . . . . . . . . 276
Danger of fitting a child seat on the front
passenger seat . . . . . . . . . . . . . . . . . . . . . .
2 70
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Fr ont airbags . . . . . . . . . . . . . . . . . . . . . . . 274
How do the front airbags work? . . . . . . . . 279
How many airbags does my vehicle have? 276
How the Advanc ed Airbag System compo-
nents wo rk together . . . . . . . . . . . . . . . . . 278
Important safety instructions on the knee
airbag system . . . . . . . . . . . . . . . . . . . . . . . 287
Knee airbags . . . . . . . . . . . . . . . . . . . . . . . . 285
Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . 281
PASSENGER AIR BAG OFF light . . . . . . . . . 281
Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Safety instructions . . . . . . . . . . . . . . . . . . . 283
Side airbags . . . . . . . . . . . . . . . . . . . . . . . . 287
Warning/Indicator lights . . . . . . . . . . . . . 281
Wh en must the system be inspected? . . . 281
Air pressure
Tire Pressure Monitoring System indicator 348
Index
Alarm system
refer to Anti-theft alarm system . . . . . . . . . 36
Al ignment pin (tire change) . . . . . . . . . . . . . 360
All-weather lights . . . . . . . . . . . . . . . . . . . . . . 49
All season tires . . . . . . . . . . . . . . . . . . . . . . . 346
All wheel drive
refer to quattro (all wheel drive) . . . . . . . 152
AMI
refer to Audi music interface . . . . . . . 229, 230
Android Auto
refer to Audi smartphone interface 241
Anti-freeze Windshield washer system . . . . . . . . . . . . 328
Anti-Lock Braking Sys tem (ABS) . . . . . . . . . 148
Anti-Slip Regu lation (ASR) . . . . . . . . . . . . . . 148
Anti-theft alarm system . . . . . . . . . . . . . . . . . 36
Apple CarP lay
refer to Audi sm artphone interface . . . . . 241
ASR
refer to Anti-Slip Regulation (ASR) . . . . . . 148
Audi active lane assist Cleaning the camera area
Messages ... .. .. .. ............... . .
Audi adaptive cruise control ............ .
Cleaning the sensor ................. .
Distance display, distance warning .. .. . .
Messages ... .. .. .. ............. .. . .
Audi adap tive light ... ............... . .
Audi connect e-tron services
............
Doors and lights .... ................ . 133
355
135
123
355 129
130
140
199
199
Audi connect (Infotainment) ........ 190, 196
Data protection . . . . . . . . . . . . . . . . . . . . . 197
Services overview . . . . . . . . . . . . . . . . . . . . 191
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Audi drive select . . . . . . . . . . . . . . . . . . . . . . 140
Audi magnetic ride
refer to Suspension control . . . . . . . . . . . . 140
Audi music interface . . . . . . . . . . . . . . . . . . . 229
Audi music stream
refer to Wi-Fi . . . . . . . . . . . . . . . . . . . . . . . 227
Audio files . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Audio player
Bluetooth audio player . . . . . . . . . . . . . . . 226
Wi-Fi audio p lay er . . . . . . . . . . . . . . . . . . . 227
Audio track 235
387

u. 00 .-< N l'­ N .-< 0 N > 00
How are child restraint system anchors re lat -
ed to chi ld safety . . . . . . . . . . . . . . . . . . . . . 308
H ow many airbags does my vehicle have? . . 2 76
H ow safety belt pretensioners work . . . . . . 267
I
Ignition
Establishing drive ready mode (plug-in hy-
brid drive) . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Switching on/off (plug-in hybrid drive) . . . 94
Sw itching on/off (us ing the button) . . . . . . 76
Sw itch ing on/off (us ing the key) . . . . . . . . . 75
Imba lance (wheels) . . . . . . . . . . . . . . . . . . . 339
I mmobilizer
refer
to Electronic immobilizer . . . . . . . . . . 32
Important things to do before driving . . . . 249
Importing and exporting (contacts) . . . . . . 187
I mproperly worn safety belts . . . . . . . . . . . 266
Indicator lights . . . . . . . . . . . . . . . . . . . . . . . . 20
A irbag system . . . . . . . . . . . . . . . . . . . . . . 28 1
PASSENGER AIR BAG OFF . . . . . . . . . . . . . 281
Indicator lights (plug-in hybrid drive) . . . . . . 96
I nfant seats . . . . . . . . . . . . . . . . . . . . . . . . . 300
Input Using the MMI touch . . . . . . . . . . . . . . . . . 157
Using the speller . . . . . . . . . . . . . . . . . . . . 161
Input level (media) . . . . . . . . . . . . . . . . . . . . 235
I nspection interval . . . . . . . . . . . . . . . . . . . . 328
Install ing the upper tether strap on the an-
chorage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312
Instrument cluster . . . . . . . . . . . . . . . . . . . . . 10
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Plug -in hybrid dr ive . . . . . . . . . . . . . . . . . . . 95
Instruments Adjusting illumination . . . . . . . . . . . . . . . . . 52
I nterior lighting . . . . . . . . . . . . . . . . . . . . . . . 52
Internet refer
to Audi connect (Infotainment) . . . . 190
Internet radio . . . . . . . . . . . . . . . . . . . . . . . . 228
I nterva l mode (w indshie ld w ipers) . . . . . . . . 55
iPhone refer
to Audi music interface . . . . . . . 229, 230
iTunes tagging ................. ..... . 218
Index
J
Jukebox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Jump start . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Jump starting . .. .. ............... 102,375
K
Key......... ....... ................ .. 32
Key not recognized . . . . . . . . . . . . . . . . . . . 79
Key recognition . . . . . . . . . . . . . . . . . . . . . . 68
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Kick-down (automatic transmission) . . . . . . . 88
Knee a irbags . . . . . . . . . . . . . . . . . . . . . . . . . 285
Description . . . . . . . . . . . . . . . . . . . . . . . . . 285
How they work . . . . . . . . . . . . . . . . . . . . . . 286
Important safety instructions . . . . . . . . . . 287
L
Lane assist
refer to Audi active lane assist . . . . . . . . . 133
Lap timer. . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
LATCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
Description . . . . . . . . . . . . . . . . . . . . . . . . . 309
Installing a child restraint............ . 310
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
Mounting and releasing the anchorage
hook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Launch control program . . . . . . . . . . . . . . . . . 89
Leather care and cleaning . . . . . . . . . . . . . . 357
Left control button . . . . . . . . . . . . . . . . . . . . . 14
Licensing agreements (MMI) . . . . . . . . . . . . 248
Lifting jack . . . . . . . . . . . . . . . . . . . . . . . . . . 366
Light/rain sensor Automatic headlights . . . . . . . . . . . . . . . . . 49
Switching the rain sensor on/off. . . . . . . . . 55
Lighting Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Interior/read ing lights . . . . . . . . . . . . . . . . 52
Listening to music
refer to Media ... .. ............. 223, 232
Load....... .. .. .. .. ............... .. 382
Locking/unlocking
refer to Unlock ing/ locking ....... 31, 33, 34
Low beam headlights . . . . . . . . . . . . . . . . . . . 49
393