AUDI S8 2014 Owners Manual

Audi adaptive cruise control and braking guard 99
then maintains the stored distance. If the ve­
hicle ahead accelerates, adaptive cr uise con­
trol will also accelerate up to the stored
speed.
The higher the speed, the greater the distance
in yards (meters) ¢.&. . The
Distance 3 setting
is recommended .
The distances prov ided are spec ified values.
Depending on the driving situation and the
how the vehicle ahead is driving, the actual
d istance may be more or less than these tar­
get distances.
The various symbols for the time increments
appear briefly in the information line @
¢ page 96, fig. 98 when you change the set­
tings.
~ -~ --- Distance 1: This setting corre­
sponds to a distance of 92 feet/28 meters
when traveling at 62 mph (100 km/h), or a
time interva l of
l second.
~ -- ~-- Distance 2: This setting corre­
sponds to a distance of 118 feet/36 meters
when traveling at 62 mph (100 km/h), or a
time interva l of 1.3 seconds .
~--- ~-Distance 3: This setting corre ­
sponds to a distance of 164 feet/SO meters
when traveling at 62 mph (100 km/h), or a
time interva l of 1.8 seconds .
~---- ~ Distance 4: This setting corre ­
sponds to a distance of 210 feet/64 meters
when traveling at 62 mph (100 km/h), or a
time interva l of 2.3 seconds .
A WARNING
Following other vehicles too closely in­
creases the risk of collisions and serious
personal injury.
- Setting short distances to the traffic
ahead reduces the time and distance
available to br ing your vehicle to a safe
stop and makes it even more necessary
to pay close attention to traffic.
- Always obey applicable traffic laws, use
good judgment, and select a safe follow- ing distance
for the traffic, road and
weather conditions.
@ Tips
- Distance 3 is set automatically each time
you switch the ignition on.
- Your standard settings are automatically
stored and assigned to the remote con­
tro l key being used.
Selecting the driving mode
Applies to vehicles: with Aud i adapt ive c ruise contro l
.,. Select the desired driving mode in drive se­
lect¢
page 110.
(0 Tips
Your settings are automat ica lly stored and
assigned to the remote control key being
used.
Prompt for driver intervention
Applies to vehicles: with Audi adapt ive cru ise contro l
Fig. 102 Instrument cluster: request fo r drive r in ter­
vent ion
In certa in situations, the system will prompt
you to take action . Th is could happen, for ex­
amp le, if braking by the adaptive cruise con­
trol system is not enough to maintain enough
distance to the vehicle ahead.
The indicator light
I and the symbol in the
display will warn you about the situation
¢ fig. 102. You will also hea r an acoustic sig­
nal.
- Press the brake pedal to slow your vehicle
down.

100 Audi adaptive cruise control and braking guard
Audi braking guard
Descript ion
Applies to vehicles: with Audi adaptive cruise control
Fig . 10 3 Instrumen t cl uste r: approach warn ing
Braking guard uses radar sensors and a video
camera . It also functions within the lim its of
the system when adapt ive cruise control is
switched off .
What can braking guard do?
When detected in time, the system can assess
situations when a vehicle ahead brakes sud­
denly or if your own veh icle is traveling at a
h igh speed and approachi ng a veh icle up
ahead that is moving more slowly . Bra king
g ua rd does not react if it can not detect th e
situa tio n.
The system advises you of various situations:
- The
distance warning is given if you are too
close to the vehicle ahead for a long time. If
the vehicle ahead brakes sharply, you will not be able to
avoid a coll is io n. The indicator
li ght
I in the display comes on .
- The
approach warning is g iven when a de ­
tected veh icle up ahead in your lane is
mov ­
ing much more slowly than you are o r if it
brakes sha rply . W he n this wa rning is giv en,
it may only be poss ible to avoid a collisio n
b y swervin g or br aki ng sh arply . Th e ind ic ator
li gh t
I and indica to r i n the disp lay wi ll warn
yo u about t he danger ~
fig. 103. Yo u will a l­
so hear an acoustic signa l.
If yo u do not re act fa st enoug h or do not re act
at all to the si tuatio n, br aking gu ard will inte r-
ll Thi s is not ava ilable in some co un tri es .
vene by braking and the message braking
guard intervention
wi ll appea r.
- If a coll is ion is imm inent, the sy stem wi ll
fi rs t provide an
acute warning by br iefly and
sharply a pplying the brakes.
- If you do no t re act to the acu te w arning,
bra king g uard can brake w it h increas ing
force w it h in the lim its of the system . This
red uces the vehicle speed in the event of a
co llision.
- The system can initiate maximum b ra ki ng
short ly before a co llision
ll. Full dece leration
at high speeds occurs only in vehicles with
ada ptive cr uise control a nd side assist (pre
sense plus) .
- If the brak ing guard senses that yo u are not
brak ing hard en ough w hen a co llis ion is im­
m inent, it can increase t he b rak ing fo rce .
- The pre sense f unctions also engage whe n a
col lision is imm inent
c> page 197.
Which function s can be controlled?
You can switch braking guard and the dis­
tance/approach warning on or off in the M MI
c> page 101, Settings in the MMI.
A WARNING
-
Lack of attentio n can cause collisions, oth-
er accidents and serio us pe rsonal i nju ries.
Th e braking gua rd is an assist system and
c an not preve nt a collision by it self. T he
d rive r m ust always in tervene. The dr ive r is
a lway s respon sib le f or br aki ng at the cor­
r e ct t ime.
- Always p ay clos e atte ntio n to traffic,
even when the braking guar d is swi tched
on. Be ready to in te rvene and be re ady to
take c omp lete contro l whenever necessa­
ry. Always keep the safe and legal dis­
tance between your ve hicle and veh icles
up ahead.
- Bra king guard works within limits and
w ill not respond outside the system lim­
its, for examp le w hen approachi ng a
stopped vehicle or stationary obstacle ..,.

Audi adaptive cru ise control and brakin g guar d 101
(end of a traffic jam or veh icle t hat has
br oken down in traffic).
- Always remember that the radar sensor
for the b raking guard works only within
defined detection and ra nge limits that
may prev ent the proper det ection of oth­
er ve hicles.
- The ra dar sensor's function and range
can be reduced by rain, snow and heavy
spray. Moving vehicles up ahead may not
be promptly detected or may not be de­
tected at al l.
- Reflective surfaces includ ing crash barr i­
ers or tunnel ent rances may impair the
function of the radar sensor.
(0 Tips
- You can cance l the braking w ith increas­
i ng fo rce that is initiated by the system
by braking you rself, by accelerating no­
ticeab ly or by swerving.
- Brak ing guard error messages
<=> page 101.
-Keep in mind that braking guard can
brake unexpectedly. Always secure any
ca rgo or objec ts that you are transport ­
i ng to reduce t he risk of d amage o r in­
Ju ry.
Settings in the MMI
Applies to vehicles: with Audi adaptive cruise control
~ Se lect : ICARI function button> Car system s
control button > Driver assist > Audi brak­
ing guard .
S ystem -
Switch braking g ua rd On and Off .
When you sw itch the ignition on, the message
Audi braking guard off appears if the system
is switched off.
Early warning -The distance and approac h
warn ings in the display can be switched
On /
Off .
@ Tips
- Your settings are automatica lly stored
and assigned to the remote control key being used at the time the settings
are
made .
-If you res trict the E SC, the braking gua rd
also sw itches itself
off <=> page 201 .
-Swi tch braking guard off when you a re
loading the vehicle onto a veh icle carrier,
t rain, ship o r other type of transporta­
t ion . This can prevent undesired warn­
ings from the braking guard system.
Messages
Applies to vehicles: with Aud i adapt ive c ruise con tro l
Braking guard : off
T his dr iver message appears if the system is
turned off via the info tainment . Othe rwise, if
the system is turned off, the information ap ­
pears every time shortly after the start of the
trip.
T he driver message a lso appears if the system
is not ava ilable d ue to a malfunct ion or if the
ESC is not switched on<=>
page 201 . If this is
the case, the system w ill not prov ide warnings
about a poss ible collision.
Braking guard : activated
T h is dr iver message appears if sharp b rake
pressure was applie d due to an acu te warning.
ACC: Unavailable!
ACC and Audi braking guard: not available
The system cannot detect mov ing vehicles up
ahead correctly and is switched off . The sen­
sors have been displaced or are not working proper ly. The Audi pre sense functions may a l­
so be affected . Drive to your authorized Aud i
dealer or author ized Audi serv ice facility im­
med iate ly to have the malfunction cor rected .
ACC: currently unavailable. No sensor v is ion
ACC and b raking guide: cu rrentl y unavaila­
ble . No sensor vis ion
T h is mess age appears if the senso r view is ob­
structe d, for examp le by leaves, snow, heavy
spray or dirt. Clean the sensors
,=;,page 94,
rg .93 . ~

102 Audi adaptive cruise control and bra king guard
ACC : Currently unavailable . Gradient too
steep
T he road ex ceeds the maxim um poss ible an­
g le for proper adaptive cruise co ntrol opera ­
tion . Adaptive cruise control is sw itched off .
ACC: Only available in D, Sor M
Select the D/S or M selector lever position .
ACC: currently unavailable. Parking brake
appl ied
T he adaptive c ruise co ntro l system swi tc hes
off a utomat ica lly if t he pa rking brake is set.
ACC : Currently unavailable . Stability control
(ESC) input .
This message appea rs if the Elect ron ic Stabili­
z ation Cont ro l (ES C) is wo rking to help stabi­
l iz e the vehicle. In thi s case, a dap tive cru ise
con tro l sw itches o ff autom atically .
ACC off: Manual control!
This message appears whe n adapt ive cr uise
control can not set the par king b rake. Press
the brake peda l to prevent the vehicle from
rolling .
•••
Three w hite dots appear if a settin g can not be
se lected with the se lecto r lever. For example,
this happens if adapt ive cr uise control cannot
resume driv ing in stop-and-go traff ic because
one o f the conditions required for ACC to wor k
i s not present .
Door open
The adaptive c ruise control system c annot
switch on whe n a doo r is open .
Stationary object ahead
This message appea rs if you would like to
sw itch adaptive cru ise cont rol on and ther e is
a stat io na ry ve hicle o r obstacle directly ahead
of yo ur vehicle .

Audi lane assist Lane assist
De script ion
App lies to vehicles: with la ne ass ist
Lane assist helps you keep your vehicle in your
lane.
Lane assist detects lane marker lines within
the limits of the system using a camera in the
windshield. If you are approaching a detected
lane marker line and it appears likely that you
will leave the lane, the system will warn you
with a light vibration . Lane assist is operable
when the line marking the lane is detected on
at least one s ide of the vehicle.
The system will not warn you before crossing
a lane marker line if you have activated the
turn signal. In th is case, it assumes that you
are changing lanes intent ionally.
The system is designed for driv ing on free­
ways and expanded highways and thus works only at speeds of 40 mph (65 km/h) o r more .
_& WARNING
-Lane assist will not keep your veh icle in
your lane. The system only warns the
driver w hen the veh icle is leaving the
lane. The driver is always responsible for
keeping the vehicle in the lane.
- The camera is not able to detect all lane
boundary lines and in some cases might
also detect lane structures or objects as
boundary lines. This can lead to incorrect
warnings or warnings that fail to go off
at all.
- The camera's visibility can be impaired by
vehicles ahead of you, for instance, or by
rain, snow, heavy spray or light shin ing
in to the camera lens. This can ca use lane
assist to fa il to detec t boundary li nes.
-
Audi lane a ssis t 10 3
Act ivating and deactivating
App lies to vehicles: wit h lane assist
Fig. 104 Turn s igna l lever: Lane assist button
Fig . 105 Windsh ield: Lane assist ca mera view ing win ­
dow
"' Press the Q fig . 104 button to activate or
deactivate the system. The. or. indica­
tor l ight in the instrument cluster will il lu­
m inate or go out .
Instrument cluster ind icator light
• Read y:
The green indicator light shows
that the system is ready to use. The system
can now war n you if you are about to c ross a
known lane marker line.
• Not ready : The yellow indicator light
shows that the system is t urned on but unable
to send a warning. This can be due to the fol­ low ing:
- 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, di rt, water or backlighting) .
- The vehicle's speed is below the speed need­ ed to activate it, wh ich is about 40 mph (65
km/h).
- The lane is narrower than about 8 ft. (2.5
m) .

104 Audi la ne ass is t
- The curve is too sharp.
(1_) Tips
Make sure the camera's fie ld of view
c::> fig. 105 is not obstr ucted by st ickers,
deposits or anything else. For in formation
on cleaning, refer to
c::;, page 216.
Lane assist display in the instrument
cluster
Ap plies to vehicles: with la ne ass ist
Fig . 106 Instrument clus te r: lane assist is switc hed on
a nd is wa rning
Fig. 107 Instrument cluste r: lane assist is switched on
but not ready to prov ide warnings
You can call up the lane assist display using
the buttons in the mult ifunction steering
wheel
c::> page 24.
When lane assist is sw itched on, the system
i ndicates which lines are detected by display­
ing solid lines on the left and/or right side of
your ve hicle: Wh
ite line(s) Lane assist is switched on and
ready to provide warnings on
the side that is indicated
<=:> fig . 106.
Red line Lane assist is warning you
(left or rig ht) that you are about to leave
your lane
c::;, fig. 106 .
Gray line(s)
Lane assist is switched on but
is not ready to provide warn-
ings
c::;, fig. 107.
Mess ages i n the in strum ent clu ster
di spl ay
When the lane assist turns off automatically,
the instrument cluster indicator goes out and
one of the follow ing messages appears on the
display:
Aud i lane a ssis t: cu rrently un availa ble . No
cam era v iew
This message appears if the camera is no lon­
ger functional after the system has continu­
ously failed to detect the lane markings. This
could happen if :
-The camera field of view
c::;, page 103,
fig . 105 is dirty or covered in ice. Clean the
area on the windshield.
- The camera field of view is fogged over. Wa it
until the fog has cleared before switching
lane assist on.
- The system has been unable to detect the
lanes for an extended period of ti me due to
road conditions such as lanes covered in
snow. Sw itch lane assist back on when the
lines are more visible.
Audi lane assis t: Cu rren tly una vailabl e
A temporary malfunction is preventing lane
assist from operating. Try switching lane as­
sist on again later.
Audi lane assis t: Sys te m f ault !
Drive to your author ized Audi dealer soon to
have the malfunct ion corrected.

Setting the warning point and steering
wheel vibration
Appl ies to vehicles: with lane assist
You can adjust individual settings in the MMI.
.. Select : I CARI funct ion button > Car systems
control button > Driver assist> Audi lane
assist .
Setting the warning point Early :
With this setting, a warning is provided
before a wheel touches the detected lane
boundary line. The warning depends on the
angle in which the ve hicle is approaching the
line. The distance at which the warning is giv­
e n increases as the angle becomes sharper. If
you dr ive toward a boundary line at a very
sha rp angle, the warning will come just before
a w heel touches the line.
Medium : With this sett ing, the warning point
i s adapted to the cou rse of the road, the lane
width and the speed . You wi ll st ill be warned
if you cross slightly over a dotted line when
driving on curves.
Late: This setting has the same properties as
medium. You will only be warned once a
wheel crosses a detected line.
Setting the steering wheel vibration
The steering wheel v ibration can be set to
Low , Medium or Strong . Selecting each of the
set tings will cause the steering wheel to vi­
brate so you can ch eck the strength of the vi­
bration in that setting.
@ Tips
Your settings are automatically stored and
assigned to the remote contro l key be ing
used.
Audi lane assist 105

106 Audi side assist
Audi side assist
Lane Change Assistant
Description
App lies to vehicles: wit h side ass ist
Fig . 108 Sensor detection range
Fig. 109 Display on the exterio r mirror
Side assist he lps you monitor your blind spot
and traffic behind your veh icle. Within the
limits of the system, it warns you about
vehicles that are coming closer or that are
traveling wit h you within sensor range
(D
c:> fig . 108: if a lane change is class ified as crit­
ical, the display @ in the exterior mirror
¢ fig.109turnson.
The display in the left exterior mirror provides
assistance when mak ing a lane change to the
le ft, while the display in the right exter ior mir·
ror provides assistance when making a lane
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 critical. The display
in the respective mirror turns on, but is d im. T
he display remains dim intentionally in the
information stage so that your view toward
the front is not disturbed .
Warning stage
If you activate the turn signal, s ide ass ist
warns you about vehicles that are detected
and classified as critical. The display in the re­
spective mirror blinks brightly . If this hap­
pens, check traffic by glancing in the rearview
mirror and over your shoulder c:>
.&. in General
information on page 107.
(D Tips
- You can adjust the brightness of the dis­
play @c:>
page 108.
-Please refer to the instructions for tow·
ing a trailer located in
¢ page 107.

General information
Applies to vehicles: with side assist
®
©
Fig . 110 Dr iving situations
AUDI
Fi g. 111 Rear of t he ve hicle: positio n of t he se nsors
Side assist functions at speeds above approx i­
mately 19 mph (30 km/h).
@ Vehicl es th at ar e approaching
In certain cases, a vehicle will be classified as
cr itical for a lane change even if it is still
somewhat far away. The fas ter a vehicle ap­
p roaches, the sooner the display in the exteri­
or m irror will t urn on.
@ V ehicles traveling with you
Vehicles traveling w ith you are indicated in the
exterior m irror if they are classified as cr itical
for a lane change. All vehicles detec ted by
side assist are indicated by the time they en­
ter your "blind spot", at the latest.
Audi side assist 10 7
© Vehicle s left behind
If you s low ly pass a vehi cle that s ide assist has
detected (the difference in speed between the
vehicle and you r vehicle is less than 9 mph or
15 km/h), the display in the exterio r mir ror
turns on as soon as the vehicle enters your blind spot.
T he disp lay will not t urn on if you quickly pass
a vehicle that side assist has detected (the dif­
ference in speed between the veh icle and your
vehicle is greater than 9 mph or 15 km/h).
Functi onal limitations
The radar sensors are designed to detect the
left and right adjacent lanes when the road
lanes are the normal width. In certain situa­
tions, the d isp lay in the exterior mirror may
turn on even though there is no veh icle locat­
ed in the area that is cr itical for a lane change.
For example:
- if the lanes are narrow or if your are dr iving
on the edge of your lane.
If this is the case,
the system may have detected the vehicle in
another lane that is
not adjacent to your
current lane .
- if you a re driving through a curve. Side assist
may react to a vehicle that is one lane ove r
from the adjacent lane.
- if side assist reacts to other objects (such as
high or d isp laced guard rails) .
- In poor weather conditions. The side assist
functions are l imited .
Do not cover the radar sensors
c> fig. 111 with
stickers, depos its, bicycle wheels or other ob­
jects, because this will affect the funct ion. Do
not use s ide ass ist when towing a trailer. For
i nformation on cleaning, refer to
c> page 216 .
_&. WARNING
-Always pay attention to traffic and to t he
area a round your ve hicl e. S ide assist can­
not replace a driver's attention. T he driv­
er a lone is always responsible for lane
changes and similar driving mane uvers.

108 Audi side assist
-Improper reliance on the side assist sys­
tem can cause collisions and serious
personal injury:
- Never rely only on side assist when
changing lanes.
- Always check rear view mirrors to make
sure that it is safe to change lanes.
- Side assist cannot detect all vehicles un­
der all conditions- danger of accident!
- Please note that side assist indicates
there are approaching vehicles, or
vehicles in your blind spot, only after
your vehicle has reached a driving speed of at least 19 mph (30 km/h).
- In certain situations, the system may not
function or its function may be limited.
For example:
- if veh icles are approaching or being left
behind very quickly . The display may
not turn on in time.
- in poor weather conditions such as
heavy rain, snow or heavy mist .
- on very wide lanes, in tight curves or if
there is a rise in the road surface.
Vehicles in the adjacent lane may not
be detected because they are outside
of the sensor range.
(D Note
The sensors can be displaced by impacts or
damage to the bumper, wheel housing and
underbody . This can affect the system.
Have your authorized Audi dealer or au­
thorized Audi Service Facility check their
function.
@ Tips
- If the window glass in the driver's door
or front passenger's door has been tint­ ed, the display in the exterior mirror may
be misinterpreted.
- For Declaration of Compliance to United
States FCC and Industry Canada regula­
tions¢
page 295.
Activating and deactivating
Applies to vehicles: with side assist
Fig. 112 Driver 's doo r: Side ass ist butto n
.. Press the button c> A in General informa­
tion on page
107to switch the system on/
off. The LED in the button turns on when
side assist is switched on.
Adjusting the display brightness
Applies to vehicles: wit h side assist
The brightness setting can be adjusted via the
MMI.
.. Select: !CAR I function button> Car systems
control button > Driver assist > Audi side
assist .
The display brightness adjusts automatically
to the brightness of the surroundings, both in
the information and in the warning stage. In
very dark or very bright surroundings, the dis­
play is already set to the minimum or maxi­
mum level by the automatic adjustment . In
such cases, you may notice no change when
adjusting the brightness, or the change may
only be noticeable once the surroundings
change.
Adjus t the brightness to a level where the dis­
play in the informa tion stage will not disrupt
yo ur view forward. If you change the bright­
ness, the display in the exterior mirror will
briefly show the brightness leve l in the infor­
mation stage. The brightness of the warning
stage is linked to the brightness in the infor­
mation stage and is adjusted along with the
information stage adjustment .