2013 AUDI A8 ESP

Audi adaptive cruise control and braking guard 99
Audi braking guard
Description
Applies to vehicles: with Audi adaptive cruise control
Fig. 103 Instrumen t cl uste r: ap proac h warn ing
Braking guard uses radar sensors and a video
camera . It a lso functions within the lim its of
the system whe n 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 y our own veh icle is traveling at a
high speed and approaching a veh icle up
ahead that is moving more slowly . Bra king
g ua rd does not react if i t cannot detect th e
si tuation.
The system advises you of va rious 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 col lisio n. The indicator
light
I i n the display comes on .
- The approach warning is g iven when a de­
tected vehicle up ahead in yo ur lane is mov ­
i ng much more slowly tha n you are o r if it
b rakes sha rply . When this wa rning is given,
i t may only be possib le to av oid a collision
by swerving or br aking sh arply . Th e ind ic a tor
li gh t
I and indicator in the disp lay will warn
yo u about the danger
c::> fig . 103 . You will al­
so hear an acoustic sig na l.
If yo u do not re act fast enoug h or do not re act
at all to the situat io n, braking g uard will inte r-
11
Thi s is not ava ilable in som e coun tri es.
vene by braking and the message braking
guard intervention will appea r.
- If a coll is ion is im minen t, the sy st em w ill
first provi de an acute warning by brie fly and
shar ply a pplying the brakes.
- If you do not re act t o the acu te war ning,
bra king g uard can brake w ith increas ing
force w ith in the lim its of the system. T his
red uces the vehicle speed in the event of a
co llision.
- The system can initiate maximum brak ing
short ly before a co llision
ll. Full dece leration
at high speeds occurs only in vehicles with
adapt ive cr uise control and side assist (pre
sense plus).
- If the brak ing g uard senses that yo u are not
braki ng hard enough w hen a co llision is im­
m inent, it can inc rease t he b ra ki ng fo rce .
- The pre sense functions also engage whe n a
col lision is imm inent
c::> page 196 .
Which function s can be controlled?
You can switc h braking guard an d the dis ­
tance/approach warning on or off in the M MI
c::> page 100, Settings in the MMI.
&_ WARNING
Lack of attent ion can cause collisions, ot h­
e r accidents and serio us pe rsonal inj uries .
Th e braking gua rd is an assist system and
ca nnot pr ev en t a collisi on by its elf . T he
dr iver must always in tervene. The drive r is
al way s res pons ible f or br aki ng a t the cor­
rect t ime.
- Always pay clos e att ention to traffic ,
e v e n w hen the bra king g uard is swi tched
on. Be ready t o intervene and be ready to
take comp lete contro l whenever necessa­
ry. Always keep the sa fe and legal dis ­
tanc e between your ve hicle an d veh icles
up ahead.
- Braking guard works wi thin limits and
wi ll not respo nd outside t he system lim­
its, for e xamp le w hen approaching a
stopped vehicle o r stationary obstacle ..,.

102 Audi la ne ass is t
Audi lane assist
Lane assist
Description
Appl ies to vehicles: with lane assist
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 cross ing
a lane marker line if you have activated the
turn signal. In t his case, it assumes tha t you
a re changing lanes intent ionally.
The system is designed for driv ing on free­
ways and expanded highways and thus works
on ly at speeds of 40 mph (65 km/h) o r more.
.&_ WARNING
- Lane ass ist will not keep your vehi cle in
yo ur lane. The system only warns the
dr iver w hen the vehicle is leaving the
lane. The driver is always responsib le 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 cause lane
assist to fa il to detec t bou ndary lines.
- Activating and deactivating
Applies to
vehicles: with lane assist
Fig. 104 Turn s igna l lever: Lane assist button
Fig . 105 Windsh ield: Lane assist camera viewing win ­
dow
"' Press the q fig. 104 button to activate or
deactivate t he system. The • or. ind ica­
t or l ight in the instrument cluster will il l u­
m inate or go o ut.
Instrum ent cluster indicator light
• Re ady:
The green indicator light shows
that th e system is ready to use . Th e system
can now warn you if yo u are about to cross a
known lane mar ker line.
• Not ready: The yellow indicator light
shows that the system is t urned on bu t unable
to send a warning . This can be due to the fol­
lowing :
- 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 obst ructed by
snow, d irt, 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) .

Audi side assist Lane Change Assistant
Description
App lies to vehicles: with si de assist
Fig . 108 Sensor detection range
Fig . 109 Disp lay on the exterior mirror
Side assist he lps you monitor your blind spot
and traffic behind your veh icle. W ith in the
limits of the system, it warns you about
vehicles that are coming closer or that are
traveling w ith you within sensor ra nge
(D
c::, fig . 108: if a lane change is class ified as crit­
ical, the display @ in the exterior mirror
c::> fig. 109 turns on.
The display in the left exterior mirror provides
assistance when making a lane change to t he
l eft, while the display in the right exter ior mir­
r or p rov ides assistance when making a lane
change 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
i n the respec tive mirro r turns o n, but is d im .
Aud i side assist 105
The display remains d im intentionally in the
information stage so that your view toward
the front is not disturbed .
Warning st age
If you activate the turn signal, s ide assist
warns you about veh icles 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 ¢
A in General
information on page 106.
@ Tips
- You can adjust the brightness of the dis­
play @¢
page 107.
-Please refer to the instructions fo r tow­
ing a trailer located in¢
page 106.

106 Audi side assist
General information
App lies to vehicles: with side assist
®
©
Fig. 110 Driving s it u at ions
A U D I
• 0
Fig . 11 1 Rea r of th e ve hicle: pos it io n of t he se nso rs
Side assis t fu nctions at speeds above ap prox i­
ma tely 19 mph (30 km/h).
(D V ehicles that are 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 ro aches, the sooner the disp lay in the exteri­
or m irror will t urn on.
@ Vehicles traveling with you
Vehicles traveling w ith you are indicated in the
exterior m irror if they are classified as cr it ical
for a lane change. All vehicles detec ted by
side assis t are in dicated by the time they en­
ter your "blind spot", at the latest.
@ Vehicles left behind
If you s low ly pass a ve hicl e tha t sid e ass ist has
dete cted ( the difference in s peed between the
vehicle and you r vehicle is less than 9 mph or
15 km/ h), the display in the exterio r mirror
turns on as soon as the vehicle enters your blind spot.
The display wi ll not t urn on if you quickly pass
a vehicle that s ide assist has detected (t he d if ­
f erence in speed between the ve hicle and your
vehicle is greater than 9 mph or 15 km/h).
Functional limitations
T he radar senso rs are designed to detect the
left and right adjacent lanes when the road
l anes a re the normal width. In certain situa­
t ions, the d isp lay in the exterior mirror may
turn on even though there is no ve hicle locat­
ed in the area that is cr itical fo r a la ne cha nge.
Fo r example:
- if the lanes are narrow or if your are driving 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 you r
cur rent lane .
- if you a re driving through a c urve . Side assis t
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 gua rd rails) .
- In poor weather conditions. The side assist
fu nctions are limited .
Do not cover the radar sensors
c::> fig. 111 with
stickers, depos its, bicycle wheels or other ob­
jects, because this wi ll affect the funct io n. Do
not use s ide ass ist when towing a trailer . For
information on cleaning, refe r to
c::> page 218 .
&_ WARNING
-Always pay a tten tion t o traffic and to the
a rea around your ve hicl e. Side a ssist can ­
no t repla ce a driver's atte ntion. The driv ­
er a lone is always respons ible fo r lane
cha nges a nd similar driving mane uvers.

Audi drive select Driving settings
Introduction
Aud i drive select makes it possible to experi­
ence different types of vehicle settings in one
veh icle. The driver can select th ree
Comfort,
Auto
and Dynamic modes in the MMI to
switch between a sporty and a comfortable
driving mode.
You can also adjust the setting according to
your preferences in the
individual mode. For
examp le, you can combine settings such as a
sporty engine tuning with comfortab le steer­
ing.
A WARNING
Improper use of the Audi drive select can
cause collisions, other acc idents and seri­
ous personal injury .
Description
The vehicle setup in each mode depends on
the vehicle's features. The engine, transm is­
sion, steering, reve rsible safety belt tension­
ers and adaptive air suspension are always in­
volved.
Engine and transmission
Depending on the mode, the engine and the
tra nsmission respond quicker or in a more bal­
anced manne r to acce lerator pedal move­
ments. In the sporty dynamic mode, the
transmission shifts at higher RPMs .
Air suspension
The adaptive air suspension/adaptive air sus­
pension sport*
( Air suspension in the MMI) is
an electronically con trolled air suspension and
damping sys tem. They are adjusted depend­
ing on the selected driving mode, the drive r's
steering, braking and acceleration input and
the road s urface, vehicle speed and load. A
sporty setting is generally used in vehicles
with adaptive air suspension sport*.
Audi drive select 109
The vehicle clearance varies depending on the
selected mode and the speed .
T he hig hway setting is activated automatically
when you drive above 75 mph (120 km/h) for
more than 30 seconds in the
auto or dynamic
mode. The ground clearance is increased auto­
matically if the speed drops below 44 mph
(70 km/h) for more than 120 seconds.
Steering
The steering adapts in terms of steering effort
and steering ratios . Indirect stee ring that
moves easily, like the steering in comfort
mode, is best suited to long drives on a high­
way . In contrast, dynamic mode provides
sporty, direct steer ing .
The following applies to vehicles with dynamic steering* : the steering ratio changes based on
vehicle speed in order to ma inta in optimum
steering effort for the driver at all times. This
sets the steering to be less sens itive at higher
speeds in order to provide improved vehicle
control. At reduced speeds, however, steer ing
is mo re direct in order to keep the steering ef­
fort as minimal as possible when the driver is
maneuvering the vehicle. At low and average
speeds, dynamic steering additiona lly pro­
vides more responsive steering performance.
Sport differential*
As a component of the all whee l dr ive system
(quattro ®)
<:!) page 203, the Sport differen­
tia l* distributes the driving power to the rear
axle depending on the situation . The distribu ­
tion of power varies depending on the select ­
ed mode, from balanced (comfort) to agile
(dynamic). The goal is a high level of agility
and ability to accelerate on curves . The vehicle
is very responsive to steering.
Curve light*
The curve light adapts to driving on curves.
The pivoting act ion and the lighting are also
adapted to the mode.
Adaptive cruise control*
The behavior when accelerating can be adjust­
ed from comfortab le to sporty, depending on .,..

110 Audi drive select
the drive se lect mode. Adaptive cruise control
a lso responds to the driving behavior of the
vehicle ahead in a more conservative or sporty
manner.
Engine sound*
The sound of the engine is adapted to the se­
lected mode and ranges from subtle to sporty .
Q) Note
-Make sure there is enough clearance
above and below the vehicle when park­
ing. The height of the vehicle can change
once it is parked due to temperature
fluctuations, changes to the load cond i­
tions and changes to the dr iv ing modes,
which can affect clearance .
- When transporting the vehicle on a car
carr ier, tra in, ship or by other means, on­
l y tie the veh icle down at the running
surface of the tires, which is the outer
ci rcumfe rence . Securing the vehicle at
the axle components, s uspension str uts
or towing eyes is not pe rmitted because
the press ure in the air suspension s truts
can change during transport. The vehicle
may not be sec ured s ufficient ly if this
happens.
- If you are going to tow a trailer, you must activate the trailer ope ration mode
c:> page211.
(D Tips
-In some mode ls, the maxim um vehicle
speed can on ly be reached in the
auto
and dynamic modes.
- Se lecting the
dynamic mode results in
sporty shifting characteristics. The S
gear position engages automatically.
- In vehicles that have dynamic steering*,
operating noise is heard when starting or
stopping the eng ine. This does not ind i­
cate a problem. -
In vehicles w ith sport different ia l* , the
dynamic mode is deactivated when tow­
ing a tra iler.
Selecting the driving mode
You can choose between Comfort, Auto , Dy­
namic and Individual.
Fig. 11 3 MMI : Drive select
.,. To select the mode, se lect the following in
the M Ml :
I CAR I function button > 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 accelerator 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 h igh ­
ways.
auto -provides an overall comfortable yet dy­
nam ic driving feel and is suited for every day
use.
dynamic -gives the vehicle a sporty driving
feel and is suited to a sporty driving style.
individual-c:> page 111.
A WARNING ,...___ -
Pay attention to traffic when operating
Audi drive select to prevent potential risk
of an acc ident.

steering angle. The pedestrian warning prompts you to pay even closer attention to
the area in front of the vehicle and to watch
out for pedestrians.
If another display such as the trip comp uter
replaces the image from the night vision as­
sistant, the indicator light turns red when
there is a pedestrian warn ing .
c:> fig. 118 .
@ Tips
The pedestrian marking and warning tone
can be adjusted in the MMI
r=>poge 114.
General information
Applies to vehicles: with night v isio n ass istant
N 0
8 :i:
~
Fig. 119 Fron t of the veh icle: night vision ass istant
camera
The following situations may affect the func­
tion of the night vision assistant system:
- poor v is ib ility such as snow, rain, fog or
heavy road spray
- dirty lens on the night vision assistant cam-
era
Make sure the night vision assistant camera
i::> fig. 119 is not cove red by stickers, deposits
or any other obstructions because that can
prevent the camera from working properly.
F or information on cleaning the lens, refer to
c:> page 218.
Pedestrian detection depends on the differ­
ence in temperature between the person and
the background. Pedestrians may not be de­
tected if the temperature difference is too
sma ll. The pedestrian highlighting feature is
deactivated at temperatures above 77 °F (25
0
() and when it is light outside.
Night vision assistant 113
A WARNING
Night vision assistant has limits and can­
not always detect pedestr ians . Always pay
close attention to traffic and the area
around your vehicle even when night vision
assistant is switched on.
- Night vision assistant can only warn
about people located within the visual
range of the infrared camera. The visual
range corresponds to the image in the in­
strument cluster display.
- Night vision assistant may not detect
peop le and highlight them if
- they are not in an upright posit ion, for
example if they are sitt ing, crouching
or lying down and/or
- if the outline in the display is incom­
plete or interrupted, for example be­
cause the person is part ially hidden by
a parked vehicle .
@ Tips
-Pedestrian detection and the pedestrian
warm ing are limited to objects that are
detected as pedestrians. The system
does not detect an imals. Even though
the shape and warmth radiated by each
object detected is evaluated, the system
does have limitations and it can give in­
correct warnings .
- For technical reasons, the image pauses
in split second intervals.
Switching on and off
Applies to vehicles: wit h night vision assistant
Fig . 120 Area around th e ligh t sw itch: night vis ion as·
s istant button .,.

Parking systems
General information
App lies to vehicles: with park in g system plus/rear view
camera/peripheral cameras
Depending on your vehicle's equipment, vari­
ous parking aids will help you when parking
and maneuvering.
The
advanced parking system with rear view
camera
ass ists you when parking by audibly
and v isua lly indicating objects detected
in
front of
and behind the vehicle . The rear view
camera shows the area behind the vehicle in
the Infotainment display. This display assists
you when you are cross or para llel parking
c:;,page 122.
The peripheral cameras assist you with park­
ing and maneuvering. You are aided by various
cameras depending on the vehicle equipment level ¢
page 126. In addition, you are assist­
ed by the functions from the sensors
c:;, page 122, Sensors, c:;, page 124 , Visual
display .
A WARNING
-Always look fo r traff ic and check the area
around your vehicle by looking at it di­
rect ly as well. The parking system cannot
replace the driver's attention. The driver
is a lways respons ible for safety during
parking and for all other maneuvers.
- Please note that some sur faces, such as
clothing, are not detected by the system .
- Sensors and cameras have blind spots in
which peop le and objects cannot be de­
tected. Be especially cautious of children
and animals.
- The sensors can be displaced by impacts
or damage to the radiator grille, bumper,
wheel housing and the underbody. The
parking systems may become impaired
as a result. Have your authorized Audi
dealer or qualified workshop check their
function.
- Make sure the sensors are not covered by
stickers, deposits or any other obstruc­
t ions as it may impair the sensor func-
Parking systems 121
tion. For information on cleaning, refer
to
c:;, page 218.
(D Note
-Some objects are not detected by the
system under certain circumstances:
- Objects such as barr ier chains, trailer
draw bars, vertical poles or fences
- Objects above the sensors such as wall
extensions
- Objects w ith specific surfaces or struc­
tures such as chain link fences or pow­
der snow .
- If you continue driving closer to a low-ly­
ing object, it may disappear from the
sensor range. Note that you w ill no lon­
ger be warned about this obstacle .
(D Tips
- The system may provide a warning even
though there are no obstacles in the cov­
erage area in some situations, such as:
- certain road surfaces or for long grass.
- externa l ult rason ic so urces e.g. from
cleaning vehicles.
- heavy rain, snow or thick vehicle ex ­
haust.
- We recommend that you practice park­
ing in a traffic-free location or parking
lot to become familiar w ith the system.
When doing this, there should be good
light and weather cond itions.
- You can change the volume and pitch of
the signals as we ll as the disp lay
c:;, page 131.
-Please refer to the instructions for tow­
ing a trailer
c:;, page 131.
- What appears in the infotainment dis­
play is somewhat time-delayed.