2018 AUDI A8 lane assist

Assistance systems
-With stationary objects ¢ page 97.
A WARNING
Always pay attention to traffic when adaptive
cruise control is switched on and braking
guard is active. As the driver, you are still re­
sponsible for starting and for maintaining
speed and distance to other objects. Braking
guard is used to assist you . The driver must
always take action to avoid a collision. The
driver is always responsible for braking at the
correct time.
- For safety reasons, do not use adaptive
cruise control when driving on roads with
many curves, when the road surface is in
poor condition and/or in bad weather (such
as ice, fog, gravel, heavy rain and hydroplan­
ing). Using the system under these condi­
tions increases the risk of an accident.
- Switch adaptive cruise control off tempora­
rily when driving in turning lanes, on ex­
pressway exits or in construction zones. This
prevents the vehicle from accelerating to
the stored speed when in these situations .
- The adaptive cruise control system will not
brake by itself if you put your foot on the ac­
celerator pedal. Doing so can override the
speed and distance regulation.
- When approaching stationary objects such
as stopped traffic, adaptive cruise control
will not respond and braking guard will have limited function.
- The adaptive cruise control system and
braking guard do not react to people, ani­
mals, objects crossing the road or oncoming
objects.
- The function of the radar sensors can be af­
fected by reflective objects such as guard
rails, the entrance to a tunnel, heavy rain or
ice.
A WARNING
- Improper use of adaptive cruise control can
cause collisions, other accidents and serious
personal injury.
- Never let the comfort and convenience that
adaptive cruise control and braking guard
96
offer distract you from the need to be alert
to traffic conditions and the need to remain
in full control of your vehicle at all times,
- Always remember that the adaptive cruise
control and braking guard have limits -they
will not slow the vehicle down or maintain the set distance when you drive towards an
obstacle or something on or near the road
that is not moving, such as vehicles stopped
in a traffic jam, a stalled or disabled vehicle.
If registered by the radar sensors, vehicles
or obstacles that are not moving can trigger
a collision warning and if confirmed by the
video camera, an acute collision warning.
- Never follow a vehicle so closely that you
cannot stop your vehicle safely. The adap­
tive cruise control cannot slow or brake the
vehicle safely when you follow another vehi­ cle too closely. Always remember that the
automatic braking function cannot bring the
vehicle to a sudden or emergency stop un­
der these conditions .
- To prevent unintended operation, always
switch ACC off when it is not being used .
@ Note
The sensors can be displaced by impacts or
damage to the bumper, wheel housing and
underbody. That could affect the adaptive
cruise control system and braking guard .
Have an authorized Audi dealer or authorized
Audi Service Facility check their function.
© Tips
For an explanation on conformity with the
FCC regulations in the United States and the
Industry Canada regulations, see
¢page 339.

u. co .... N
" N .... 0 0 :c ' Three white dots appear if a se tting cannot be se ­
l ected with the operating lever. For examp le, this
h appens if adaptive cruise contro l cannot start
driving automatically in stop-and-go traffic be­
cause the driver has not fastened their safety belt .
Door open
The adap tive c ruise co ntro l system cannot sw itch
on w hen a door is open.
Stationary object ah ead
This message appears if you would like to switc h
adapt ive cruise control on and there is a station­
ary object o r obstacle directly ahead of you r vehi­
cle .
Audi active lane assist
(lane departure assist)
Description
Applies to: vehicles with Audi active lane assist
Active lane ass ist detects lane marker lines with­
in the limits of the system us ing a came ra in t he
w indsh ie ld. If you are app roaching a de tected
l ane marker line and it appea rs likely t hat you
will leave the lane, the system wi ll warn you with
corrective steering. Yo u can override t his steering
at any time . If you pass over a line, the steer ing
wheel will v ibrate lightly. In order for this warn­
i n g vibration to occur, it must f irst be sw itched
on in the Infotainment system . Active lane assist
i s ready for operation whe n the lane marke r line
i s detected on at least one s ide of the vehicle .
The system is designed for driv ing on express­
ways and highways and therefore only activates
at speeds above approximate ly 40 mph (65 km/
h).
Applies to vehicles with side assist
If you activate a tur n signa l when active lane as­
sist is ready and it class ifies a la ne cha nge as cr it­
i cal because of ve hicles t raveli ng a longs ide you o r
approaching you, the re w ill be not iceab le correc­
tive stee rin g short ly before you leave t he lane.
This will attempt to keep yo ur vehicle in t he lane.
A ss istance systems
Applies to vehicles w it h out side assist
T he system wi ll not warn yo u before c ross ing a
l ane marker line if you have activated the t urn
s ignal. In this case, it assumes that you are
changing lanes intentionally.
Appl ies to: vehicles with adaptive c ruise control
The co rrective steer ing is targeted based o n the
dr iv ing s itu ation . In add it ion to the lane mar ker
li nes, the system can al so t ake into accoun t other
objects s uch as gua rd rai ls. If they a re detected in
close proximity to t he vehicle, active lane assist
helps p reve nt the vehicle from driving too close
to them. The re is a lso pass ing ass istance. The
system does not provide any corrective steering if it detects that you are pass ing anot her vehicle .
A WARNING
-
-The system warns the drive r that the vehicle
is leaving the lane using corrective steering.
T he drive r is always responsible fo r keeping
the vehicle within the lane.
- T he system can assist the dr iver in keeping
the vehicle in the l ane, but it does not dr ive
by i tsel f. Always keep your hands on the
s teer ing whee l.
- Cor rec tive stee ring may not occur in cert ain
situa tions, such as during he avy b raking .
- T here may be cases whe re t he came ra does
not recogni ze all lane mar ker lines . Cor re c­
tive steering can only take pla ce on the s ide
of the vehicle where lane marker lines are
detected.
- Other road structu res or objects could poss i­
b ly be identified un intentionally as lane
marker lines. As a result, co rrective steering
may be unexpected or may not occ ur.
- The camera view can be rest ricted, for ex­
ample by vehicles driving ahead or by ra in,
snow, heavy spray or light shining into the
camera. Th is can result in active lane ass ist
not detecting the lane marker lines o r de­
tect ing them inco rrectly .
- Unde r ce rtain condit ions such as r uts in the
road, a ban ked roadway or crosswinds, the
correct ive steer ing alone may not be enough
to keep the vehicle in the middle of the lane.
~
103

Ass is tance sy stem s
-For safety reasons, active lane assist must
not be used when there are poor road and/
or weather cond itions such as slippery
roads, fog, gravel, heavy rain, snow and the
potent ial for hydroplaning. Using act ive lane
assist under these conditions may increase
the risk of a crash .
Switching on/off
Applies to: veh icles with Audi active lane assist
•
Fig. 114 Turn sig nal leve r: b utto n fo r active lane ass ist
F ig . 11 5 Wind sh iel d: came ra win d ow fo r active lane ass ist
"' Press the button to switch the system on and
off <=>
fig. 114 . The . or. indicator light in
the instr ument cluster turns on o r off .
Indicator light s
• Read y: the indicator light turns on when the
system is ready for use. The system can now be
operated .
• Not ready: the indicator light turns on if the
system is switched on but is inoperab le. Th is m ay
be due to the following reasons:
-There is no lane marker line.
- The re levant lane marker lines are not detected
(fo r example , mark ings in a construction zone
104
or because they are obstru cted by snow, dirt,
water or lighting).
- T he vehicle speed is below the activation speed
of approximate ly 40 mph (65 km/h).
- The lane is too narrow or too wide.
- The curve is too narrow.
- The d river's hands are not on the steering
wheel.
@ Tips
Make sure the camera's field of view
<=>
fig. 115 is not obst ructed by sticke rs or any­
thing e lse. For information on cleaning, see
<=> page 306 .
Image in the instrument cluster display
Applies to: vehicles with Audi active lane assist
Fig. 11 6 Instrumen t cl uster: act ive la n e as sist is sw it ched
o n an d provid ing warn ings
Fig . 117 Ins trume nt cl ust er: act iv e l ane ass ist is sw it ched
on but not ready to p rov ide warn ings
You can call up the active lane ass ist display us­
i ng the buttons in the mu ltifunction steering
whee l¢
page 12. .,..

White line(s) Active lane assist is activated
and ready to provide warnings.
Red line(s) Active lane assist warns you
(left or right) before leaving a lane
¢ fig. 116. In addit ion, the
steering wheel vibrates light ly .
Gray line(s) Active lane assist is activated,
but not ready to give warning
¢ fig. 117.
Me ssages in the in strum ent clu ster di splay
If the active lane ass ist switches off automat ica l­
l y, the indicator light in the display turns off and
one of the following messages appears:
Audi active lane a ssist: Cu rrentl y un available.
N o ca mera view
This message appea rs if the came ra is u nable to
detect the lines. This co uld happen if :
- The came ra field of v iew
<;;) page 104, fig. 115 is
dirty o r cove red in ice. C lean this area on the
wi ndshield .
- The came ra field of v iew is fogged over . Wait
u ntil the fog has cleared before sw itching the
active lane assis t on agai n.
- T he system has been unab le to detec t the lanes
for an extended period of time d ue to road con­
di tions. Sw itch act ive lane assis t back on when
the lines are more visible.
Audi active lane a ssis t: Currently una vailabl e
There is a temporary active lane assist malfunc­
tion . Try sw itch ing the active la ne assist on aga in
later.
Audi acti ve lane assist : Syste m f ault!
Drive to an authorized Audi dealer or a uthorized
Audi Service Facility immediately to have the
malfunct ion corrected.
Audi acti ve lane a ssis t: Pl ease take over steering
This message appea rs if you are not stee ring by
yourse lf. If th is is the case, act ive lane assis t does
not switch off, but it is
"not ready " to provide a
~ warn ing. The system can he lp you keep the veh i-...,
~ cle in the lane . However, you a re responsible for
~ driving the vehicle and must steer it yourself . 0 0 :c " Assi st a nce systems
A WARNING
Note that messages may be de layed or not
d isplayed o n veh icles w ith accesso ries mount­
ed on the stee ring wheel, such as a steer ing
whee l spinne r knob. Always keep your hands
on the s tee ring wheel.
Setting the vibration warning
App lies to : veh icles w ith Aud i act ive lane ass ist
11> Select: the ICAR I func tion but ton> C ar sy stem s
control b utt on > Driver assi stance > Audi a c­
ti ve lane as sist .
Vibration warning
You can switch the addit io nal vibration warn ing
in the steer ing wheel on or off.
(D Tips
Your settings are automatically stored and as­
s igned to the remote control key being used.
Audi side assist
Description
Applies to: vehicles w ith Audi s ide ass ist
Fi g. 1 18 Sensor detect ion ra n ge
F ig . 119 Disp lay on the exterio r m irror
,... .,,
9 ::c
"' co
105

Ass is tance sy stem s
Side assist he lps you monitor your blind spot and
traffic behind your vehicle. Within the limits of
the system, it warns you about vehicles that are
coming closer or that are traveling with you with­
in sensor
range ©¢ fig. 118: if a lane change is
classified as critical, the display @ in the exter ior
m irror ¢ fig. 119 turns on .
The display in the left exter ior mirror provides as­
sistance when making a lane change to the left,
while the display in the right exterior mirror pro ­
vides assistance whe n mak ing a la ne cha nge to
the right .
Information stage
As long as you do not activate the turn signal,
side assist informs you about vehicles that are
detected and class ified as crit ical. The display in
the mirror turns on, but is dim.
The display remains dim in the information stage so that your view toward the front is not distur­bed .
Warning stage
If the disp lay in a mirror blinks brightly when you
activate a turn signal, side assist is warning you
about detected vehicles that it has classified as
cr itical. If this happens, check traffic by glanc ing
i n the exter ior mirrors and over your shoulder
¢ .& in General information on page 107 .
Applies to veh icles with active lane assist
The display in the m irror can also blink if you
have not activated a turn signal : if you are ap ­
p roaching a detected lane marker line and it ap­
pears you w ill be leaving the lane, side assist will
warn you abo ut detected vehicles that it has clas­
sified as critical.
(D Tips
- You can adjust the br ightness of the display
i n the exte rior
mi rror @¢ page 108.
- Pl ease refer to the instructions fo r tow ing a
trailer located in
r::;, page 107 .
106
General information
Applies to : vehicles with A udi side assist
®
®
©
F ig. 12 0 Driving s it u ations
AUDI
Fi g. 12 1 Rear of the ve hicle: position of t he sensors
Side assist f unct ions at speeds above approx i­
m ately 19 mph (30 km/h) .
@Vehicl es that are approaching
N N
:8 ± .., a,
In certain cases, a veh icle w ill be classified as
critical for a lane change even if i t is st ill some­
what far away. The faster a vehicle approaches,
t h e sooner the display in the ex terior m irro r will
tu rn o n.
@ Vehicles traveling with you
Vehicles traveling with you are indicated in the
exter io r mirror if they are classified as cr it ica l fo r
a lane change. All vehicles detected by side ass ist
..,.

u. co .... N
" N .... 0 0 :c ' are indicated by the time they enter your "blind
spot", at the latest .
© Vehicles you are passing
If you slowly pass a veh icle that side assist has
detected (the d ifference in speed be twee n the
ve hicle and your ve hicle is less than 9 mph (15
km/h)), the disp lay in the exterior mirror turns
on as soon as the vehicle enters your blind spot .
The display will not tu rn on if you quic kly pass a
ve hicl e that side assist has detected (the diffe r­
ence in speed is greater t han 9 mp h (1 5 km/h)).
Functional limitations
The rada r senso rs a re desig ned to detect the left
a n d right adjacent lanes when the road lanes a re
the normal wid th . In some s ituat ions, the d isplay
i n the exterior mir ror may turn on even tho ugh
there is no vehicle located in the area that is criti ­
cal for a lane change. For example:
- If the lanes a re n arrow o r if yo u are driv ing on
the edge of your lane . If this is the case, the
system may have detected a vehicle in another
l ane that is no t adjacent to your c urrent lane .
- If you are dr iving through a cu rve . 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 weat her condit ions . The side assis t
functions are limited.
D o not cove r the rada r
senso rs ~ fig. 121 with
s tickers, deposi ts, bicycle whee ls o r othe r ob ­
jects , beca use they w ill impair the f unct ion . Do
not use side assist when towing a trailer . For in­
formation on clean ing,
see ~ page 306 .
A WARNING
- Always pay atte ntion to traffic and to the
area around yo ur vehicle. Side assist cannot
replace a dr iver's attention . The dr iver alone
is a lways responsible for lane changes and
s imi lar d riving maneuvers .
- In some situat ions, the system may not
func tion or its funct io n may be lim ited . For
example:
-
A ss istance systems
- if vehicles are approach ing or being left
behind very q uick ly. The disp lay may not
turn o n in time.
- In poor weat her condit ions such as heavy
r ain, snow or heavy m ist .
- On very w ide lanes, in tight curves, or if
the re is a rise i n the road surface. Veh icles
i n the ad jacent lane may not be detected
because they are outside of the sensor
range.
- Aud i side assist cannot detect all vehicles
under all conditions, which can increase the
r isk of acc idents .
- Please note that s ide ass ist only d isp lays ap­
proaching vehicles or vehicles in yo ur blind
spo t if your ve hicle is traveling a t least
19 mph (30 km/h).
- In ce rtain s ituations, the system may not
wo rk or its f unct io n may be lim ited . For ex­
a m ple:
- The display may not turn on at the r ight
time if vehicles are approach ing or pass ing
very quickly.
- In poor weat he r con dit ions, such as heavy
rain, snow or fog .
- In very wide lanes, in tig ht c urves or whe n
there are slopes in the roadway, vehicles
i n the ne ighbor ing lanes may not be de­
tected because they are o utside of the
senso r range.
@ Note
The sensors can be d isp laced by impacts or
damage to the bumper, wheel housing and u nderbody. This ca n impair the system. Have
an a uth or ized Audi dea ler or author ized Audi
Service Fac il ity check the ir fu nct io n.
(D Tips
- If the w indow glass i n the dr iver's door or
fro nt passenger's door has bee n tinted, the
disp lay in the ex ter ior m irro r may be inco r­
rect .
- For an ex plana tion on co nform ity w ith the
FCC reg ulat io ns in the U nited S ta tes and the
Indus try Cana da regulat io ns, see
~page 339.
107

A
A/C (automatic climate control) . . . . . . . . . . 70
Accessories . . . . . . . . . . . . . . . . . . . . . . . 61 , 338
Active lane assist (lane departure assist) . . 103
Cleaning the camera area . . . . . . . . . . . . . 307
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Adapter cable (Audi music interface) . . . . . 186
Adaptive air suspension/sport . . . . . . . . . . . 111
Adaptive cruise control. . . . . . . . . . . . . . . . . . 95
Cleaning the sensors . . . . . . . . . . . . . . . . . 307
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Adjusting the sound . . . . . . . . . . . . . . . . . . . 205
Adjusting the sound (tone) . . . . . . . . . . . . . 196
Adjusting the temperature (automatic climate
control system) . . . . . . . . . . . . . . . . . . . . . . . . 71
Adjusting the volume RSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Airbag system . . . . . . . . . . . . . . . . . . . . 235, 245
Care .. .. .. .. ............... .. .. .. . 240
Children . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Child restraints . . . . . . . . . . . . . . . . . . . . . 251
Components (front a irbags) . . . . . . . . . . . 233
Danger of fitting a child seat on the front
passenger seat . . . . . . . . . . . . . . . . . . . . . . 228
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Front airbags . . . . . . . . . . . . . . . . . . . . . . . 231
Important information . . . . . . . . . . . . . . . 227
Knee airbags . . . . . . . . . . . . . . . . . . . . . . . . 241
Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . 237
PASSENGER A IR BAG OFF light . . . . . . . . . 237
Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Safety instructions . . . . . . . . . . . . . . . . . . . 239
Side airbags . . . . . . . . . . . . . . . . . . . . . . . . 243
Side curtain airbags . . . . . . . . . . . . . . . . . . 246
We ight-sensing mat . . . . . . . . . . . . . . . . . 2Sl
Aircraft Transporting your vehicle . . . . . . . . . . . . . 330
Air distribution (automatic climate control) . 71
Air pressure (Tire Pressure Monitoring Sys-
tem) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Air pressure (tires) . . . . . . . . . . . . . . . . . . . . 293
Air suspension . . . . . . . . . . . . . . . . . . . . . . . 111
u. ~ Alignment pin (changing the wheel) . . . . . . 312
N ~ All season tires . . . . . . . . . . . . . . . . . . . . . . . 298 ......
g Alternative route . . . . . . . . . . . . . . . . . . . . . 173
:c ' Index
Anti-freeze
Windshield washer system . . . . . . . . . . . . 281
Anti- Lock Braking System (ABS) . . . . . . . . . 127
Anti-Slip Regulation (ASR) . . . . . . . . . . . . . . 127
Audi connect . . . . . . . . . . . . . . . . . . . . . . . . . 158
Data connection . . . . . . . . . . . . . . . . . . . . . 162
Data protection . . . . . . . . . . . . . . . . . . . . . 164
Services (overview) . . . . . . . . . . . . . . . . . . 160
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Audi music interface . . . . . . . . . . . . . . . . . . . 186
Adapter cable . . . . . . . . . . . . . . . . . . . . . . . 186
Connecting and disconnecting . . . . . . . . . 186
Screen settings . . . . . . . . . . . . . . . . . . . . . 191
Audio player
refer to Bluetooth . . . . . . . . . . . . . . . . . . . 184
Audio track (DVD) . . . . . . . . . . . . . . . . . . . . . 191
Audi Service R epair Manuals and Literature 336
AUTO Automatic climate control system . . . . . . . 70
Automatic headlights . . . . . . . . . . . . . . . . . 43
Auto Lock (central locking) . . . . . . . . . . . . . . 27
Automatic belt retractor . . . . . . . . . . . . . . . 222
Automat ic climate control . . . . . . . . . . . . . . . 69
Automatic traffic rerouting . . . . . . . . . . . . . 173
Automatic transmission (tiptronic) . . . . . . . . 83
Emerg ency mode . . . . . . . . . . . . . . . . . . . . . 87
Hill descent control . . . . . . . . . . . . . . . . . . . 86
Overboost . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Parking lock emergency release . . . . . . . . . 88
Automatic wipe/wash system . . . . . . . . . . . . SO
Auto Safety Hotline . . . . . . . . . . . . . . . . . . . 215
Average consumption . . . . . . . . . . . . . . . . . . . 12
Average speed . . . . . . . . . . . . . . . . . . . . . . . . 12
B
BACK button . . . . . . . . . . . . . . . . . . . . . . . . . 135
Balance (sound) . . . . . . . . . . . . . . . . . . . . . . 206
Belt tensioners . ..... ............. 217,225
Blended gasoline . . . . . . . . . . . . . . . . . . . . . 268
Blower (automatic climate control) . . . . . . . . 71
Bluetooth Audio player . . . . . . . . . . . . . . . . . . . . . . . . 184
Connecting a cell phone . . . . . . . . . . . . . . 147
Booster seats . . . . . . . . . . . . . . . . . . . . . . . . 2 5 7
Brake fluid Checking the brake fluid level . . . . . . . . . . 279
341