
_____________________________________________ A_ d..:.a..! p..:. t
_ i_ v _ e.;__ C.,...._ ru.;__ is..:. e.;__ C.::..: o..:.n..:.. t:.:. r..: o ..:. I_--..J_
This information is always displayed. Display area © is therefore
called the
primary di sp la y .
© S upple men tary displ ay
In display area @ information from the navigation system and the
trip computer is disp layed in addition to information about Adaptive
Cruise Control.
You can select among the different information by repeated brief taps on the RESET button on the windshield wiper
lever => page 39,
"Operation ".
Particularly on your first trips with Adaptive Cruise Control, the
s uppl em en ta ry di spla y should be turned on.
@ Message
The information in area © is not displayed permanently. Informa
tion is displayed on ly if you change the time interval , if there is a
malfunction or if the Adaptive Cruise Control is turned off. •
Applies to vehicles : with Ada ptive C ruise Cont rol
Primary display in the speedometer
De sire d sp eed
Fig . 159 Prim ary
di spl ay
in the s pee d
o m ete r
The desired speed set by the driver is displayed with a red LED.
Contro ls a nd eq uip
ment
The system al lows only speeds from 20 to 95 mph (30 to 150 km/h)
to be set. This speed range is faintly illuminated in the speedometer.
W arn ing lights (symbols )
• ""c:::, Open road: The warning light ,,.,c:::, shows that Adaptive
Cruise Control is active and that no object is ahead of the vehicle . A
stored speed requested is maintained .
• c::::,11 .. c:::, Driving i n tr aff ic: The warning light c:::,11«c:::, indicates that
an object has been detected travel ing in front . Speed is adjus ted
according to the distance set. Adaptive Cruise Control accelerates
and brakes automatica lly.
• c:::,,, ,,c:::, Re quest f or driver t o assume control : The red flashing
warning light
c::::,11 .. c:::, means Reque st for driver to assume control .
You as the driver must slow the vehicle with the foot brake . The
symbo l
c::::,11,,c:::, tells you that the Adaptive Cruise Control is not able
to s low the vehic le down enough to keep a enough distance to the
vehicle in front o f you . A warning tone signal wi ll also sound when
the symbol appears.
[ i ] Tip s
• If the Adaptive Cruise Control initiates braking, the hydraulic
brake system is under pressure. Therefore, the brake pedal distance
is shorter and the peda l feels "harder" .
• I f you use the accelerator to go faster than the speed being main
tained by the Adaptive Cruise Control, the system will not warn of
situations that require override of the Adaptive Cruise Control. No
warning light will appear in the instrument cluster display and no gong wil l sound .•
Vehicle care I I irechnical data

__ _!_A~d~a~p~t~i~v~e~C:::.r~u~is~ e~C~o'.!.n~t:!r~o~I ___________________________________________ _
Ap plies to ve hicles : wi th Ad aptive Crui se Co ntro l
Supplementary display
You should have the supplementary information
displayed here, particularly on your first trips.
F ig . 16 0 S upplem en
t a ry di sp lay
Scrol l through the avai lab le information displays by briefly tapping
the RESET button at the end of the windshie ld wiper lever . You can
select and information from the trip computer, navigation system or
Adaptive Cruise Con trol.
@ Diagram of a vehic le
@ Status
© Distance
@ Diagram of a ve hi cle
Using the v isual representation of a vehicle, you can determine
whether the system is adjusting to an object traveling in fron t.
• With an open road without a vehicle trave ling ahead, only the
outline of the vehi cle is visible .
• A
gray vehicle will appear when a vehic le is de tec ted up ahead.
• If the situation is close to a reques t for the driver to assume
control, a
red vehicle is displayed.
If Adaptive Cruise Control is turned off or no speed is set, no vehicle
is shown.
@ Statu s
• The te xt OFF appears in white letters when Adaptive Cruise
Control is turned off.
• Th e text
AVAILABLE ap pears in white letters when the system is
turned on but no requested speed has been set .
• The text
O V ERRIDE appears in white letters when you exceed the
reques ted speed by accelerating .
• The text
DISTANCE! appears in red letters w hen the interval to a
vehic le traveling ahead is too short and you have to slow your
vehic le add itionally wi th the foot brake.
• The text messages
DISTANCE 1 , DISTANCE 2 , DI STANCE 3 or
DISTANCE 4
appear in green let ters when th is is the time interval
you have set and Adaptive Cruise Cont rol is in management mode.
© Di stan ce
A pointe r (arrow) is shown in this area. When approaching slowly,
this poin ter visual izes the distance to veh icles traveling ahead.
When approaching rapid ly, it serves as early warning of an
impending request for the dr iver to assume contro l. The po inter
moves on a scale from right to left .
Open road: With an open road and no vehicle trave ling ahead, no
pointer is shown .
Driving in traff ic: If a vehicle trave ling ahead is detected, the pointer
moves in the center area of the scale. This area represen ts the
distance set. It is marked
green to make it easier to see .
Request for driver to assume control: In critical situations t he
pointer moves into the
red area of the display. When the pointer
r eaches the farthe st left position, the request for the d river to
assume control is displayed. •

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Ap plie s to vehic les: with Adaptive Cru ise Co nt rol
Messages
The text messages and symbols shown in this area of the
display are not displayed perm anently .
Time interval s
Fig . 16 1 Informa tion
lin e
The different symbols for the time intervals appear if you change the
settings. In addition, there is a display if the gong (audible warning
signa l) is turned off.
The text message ... (three white dots) appears if a setting cannot be
implemented with the operat ing lever. The fol lowing are possible
reasons
• If you pu ll the control lever forward to resume speed but no
requested speed was set.
• I f you push the lever up to increase (or down to reduce) speed
when no speed has been set previously.
• I f you push the lever up (down) to increase (reduce) speed and
this speed is outside the range from 20 to 95 mph !Canada models:
30 to 150 km/h) .
Controls a nd eq uip
ment
A CC not a vailab le
The text message ACC not av ailabl e appears, for example, if the
temperature of the brakes is excessive . Adaptive Cruise Control is
t emporarily not availab le . A warning tone sounds as a rem inder.
A CC not available !
The text message ACC not av ailabl e! appears in the event of a
malfunction. Adaptive Cruise Control is turned off . A warning tone
sounds as a reminder. Have the system inspected by a qua lified
dea lersh ip.
ACC senso r blocked
The text message AC C s en so r blo cked appears when the ACC
System does not detect any objects over an extended time period .
For the time being, the distance to vehicles up ahead is not being
cont rolled . The ACC system is not switched off, so increased alert
ness is required. The following may be reasons for the text message
ACC sensor blocked:
• The ACC sensor is dirty. The ACC system is not react ing, or is not
reacting correctly, to vehic les traveling ahead.
• It is possible that you are driving on a road with very light traffic
without any thing at the side of the road (e.g. guard rai ls, traffic
s igns, trees). As soon as a vehicle is detected by the system again,
it returns to its control range and the text message d isappears .
The ACC sensor is located in the area under the front license plate .
I f there is a loss of operation due to heavy contamination, this area
should cleaned to restore proper operation.
AC C senso r bl ock ed!
The text message ACC sensor blocked! appears when the ACC
System can no longer guarantee safe detection of objects . Adaptive
cruise control is turned off . A chime sounds as a reminder.
To decide whether it is necessary to switch off t he ACC (ACC sensor
blocked!) or if it is only a temporary condition (ACC sensor blocked),
the system wi ll a lso takes into cons ideration the outside tempera -
ture and/or the windshield wiper operation .
.,_
Vehicle care I I irechnical data

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[ i J Tip s
Settings in the Adapt ive Crui se C ontrol menu are possib le only with
the engine running and the vehicle stationary .•
Special driving situations
Applies to vehic les: with Adaptive Cru ise Control
General
Some driving situations which affect the function of the
radar sensor are described below.
There are l imits to what Adap tive Cruise Control can do as the
vehicle is driven. So be especially attentive :
• when driving around curves => page
149.
• when driving in staggered lanes of traffic~ page 150.
• when other vehicles are changing lanes::> page 150.
• when other vehicles are difficu lt to detect ~ page 150.
& WARNING
The radar s en sor 's visi on can b e re du ced by rain , snow and h eav y
sp ray. Thi s can re sult in ve h ic les driving ahe ad be ing inade quately
detect ed or , in some cir cum stan ce s, not det ected a t all . •
Contro ls a nd eq uip
ment
Ap plie s to vehicles: with Adapt ive Cru ise Co nt rol
When driving around curves
~============, J
;g
j
Entering a curve
Fig . 16 3 Ve hicle
e nt erin g a c urv e
F ig . 164 Vehicle
l eav ing a cu rve
When entering a curve, the radar sensor may react to a vehic le in the
next lane and apply the brakes in your
vehicle ~ fig. 163. The
braking action can be stopped by depressing the accelerator pedal.
Lea ving a curve
At the exit from very long curves the pred ictive lane reading can
cause the radar sensor to react to another vehicle in the next lane
and apply the brakes in your
vehic le => fig. 164 . The braking act ion
can be stopped by depressing the accelerator pedal. •
Vehicle care I I irechnical data

Audi lane assist -_____________________ __.
Audi lane assist
Lane assist
Applies to vehicles: with lane assist
Description
Lane assist helps you keep your vehicle in your lane.
Lane assist uses a camera to detect lane boundary lines. If the
system detects that your vehicle is about to leave a lane boundary
line, the steering wheel
vibrates to alert the driver. If lane assist
detects boundary lines on both sides of the vehicle's lane, the
system enters active standby mode, which is indicated by the green
indicator light/: on the instrument cluster.
If the system is in active standby mode and the turn signal is acti
vated before driving over the boundary line, the warning does not
occur since the system allows for intentional lane changes.
The system is designed for driving on freeways and expanded high
ways and thus works only at speeds of 40 mph (65 km/h) or more.
& WARNING
• Lane assist will not keep your vehicle in your lane. The system
only warns the driver when the vehicle 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 shining into
the camera lens. This can cause lane assist to fail to detect
boundary lines. •
Contro ls a nd eq uip
ment
Applies to vehicles: with lane assist
Activating and deactivating
Fig. 168 Turn signal
lever : Lane assist
button
Fig . 169 Windshield:
Lane assist camera
viewing window
Press the:::> fig. 168 button to activate or deactivate the
system.
The/: indicator light on the instrument cluster
will illuminate or go out.
Instrument cluster indicator light
/: Ready : The green indicator light shows that the system is ready
to use. A warning alerts the driver when the vehicle drives over
detected lane boundary lines.
.,.
Vehicle care I I irechnical data

-
Audi lane assist
----------------
I Not re ad y: The yellow ind icator light shows that the system is
t urned on but unab le to send a warning . This can be due to the
following:
• There are no boundary lines, or there is on ly one boundary line
present .
• The boundary lines are not detected (e.g. due to snow, dirt, wet
conditions or light shining into the camera lens) .
• More than two boundary lines (such as at construction sites) are
located in the vehicle's lane .
• The vehicle's speed is below the speed needed to activate it,
which is abou t 40 mph (65 km/h).
• The lane is narrower than about 8 ft . (2 .5 m), or wider than about
16
ft . (5 m).
• The curve is too sharp .
Notes on th e instr umen t clu ste r displa y
When the lane assist turns off automatically , the instrument cluster
indicator goes out and one of the following messages appears on
the display:
Audi lan e assist not available: C urre ntl y no se nsor vis ion
This message appears when the camera can no longer function
because it cannot detect the boundary lines. This may be due to the
following :
• The exterior s ide of the camera viewing
window => page 151,
fig. 169 is covered with dirt or ice. Clean this part of th e windshield.
• The camera v iew ing window is fogged up on the inside. In t his
case, wait until the fog disappears before turning lane assist on
aga in.
• The system was unable to detect boundary lines over an
extended period of time due to road conditions (such as snow
covered lanes). Do not turn lane assist on again unti l the lines can
be more easily detected .
Audi lane assist not ava ila bl e
A temporary malfunction is preventing lane assist from operating .
Try turning on lane assist again a t a la ter t ime.
Audi l ane ass is t: sys te m f ault
T he system should be checked by an authorized Audi dealer or other
qual ified workshop .
[ i ] Tips
• Make sure that the camera viewing window => page 151, fig. 169
is not covered by stickers or similar objects .
• Always keep the camera view ing w indow c lean . This can usual ly
b e don e by op erat ing the windshield wipers. •
App lies to vehicles: w it h l ane assist
MMI settings
You can use the MM/ to adjust the warning time and
steering wheel vibration.
Setting the warning time
- Press the [CAR ] function button.
- Select
Systems in the CAR men u.
- Select
Audi l ane ass is t.
Fig . 17 0 M MI D isp lay :
Se ttin g th e w arning
t im e a nd stee ring
w hee l v ibr ati on
![AUDI S8 2008 Owners Manual Audi lane a ssist -
----------------
-Sele ct Warning early , adaptive or late => page 152,
fig. 170 .
Sett ing th e st eering wh eel vibration
-Pressthe(CAR]function button.
-Selec t Syst AUDI S8 2008 Owners Manual Audi lane a ssist -
----------------
-Sele ct Warning early , adaptive or late => page 152,
fig. 170 .
Sett ing th e st eering wh eel vibration
-Pressthe(CAR]function button.
-Selec t Syst](/manual-img/6/57619/w960_57619-154.png)
Audi lane a ssist -
----------------
-Sele ct Warning early , adaptive or late => page 152,
fig. 170 .
Sett ing th e st eering wh eel vibration
-Pressthe(CAR]function button.
-Selec t Systems in the CAR menu .
-Select Audi lane a ssis t.
-Selec t Steering vibration weak, medium or strong.
Setting th e warning tim e
E a rl y:
This setting warns the driver before a wheel touches the
detected lane boundary line. The warning depends on the ve hicle's
angle as it approaches the boundary line . If you approach a
boundary l ine gradua lly, the warning will occur ear lier. If you
approach the boundary line at a very sharp angle, the warning wi ll
occur just before a whee l touches the l ine.
A dapti ve : In this setting, the warning time adjusts to the character
istics of the road and the vehic le speed. The warning occurs later for
curves and occurs ear lier for straight stretches of road . The warning
occurs later on narrow roads than on wide roads.
Late: Th is setting warns the driver when a whee l drives over the
detected lane boundary line.
Setting th e steering wheel vibrati on
When adjusting the steering whee l vibration, the steering wheel
v ibrates so that you can check the intensity you have set.
[ i ] Tips
• When making the adjustment, lane assist is not activated . The
steering whee l vibrates briefly only to assist you in changing the
se tting .
• Your settings are automatically stored and assigned to the
remote contro l key being used. •
Controls and equip
ment

Audi side assist -
----------------
Dea ctivating
Press the button again . The indicator l ight on the butto n
goes out .
The system can assist when driving on highways and secondary
roads . The system works only at speeds faster than 37 mph (60
km/h).
& WARNING
• Improper reliance o n the side assist s ystem can cause colli
s ions and seriou s pers onal injury:
- Ne ver rel y only on side a ssis t w hen ch anging l anes .
- Always che ck re ar view mirror s to make sur e that it i s safe to
c hange lane s.
• Side assi st cannot dete ct all vehicle s under all condition s
danger of accident!
• Side a ssist cannot detect vehicles in time to alert you when
they app roach from behind at very high speed , or fall drop b ack
very quickly.
• The radar sen sor's
vi sion ca n be redu ced or entirel y blo cked b y
rain , snow , and heavy spray . Thi s can result in side a ssis t not
a dequately dete cting veh icles or , in some cases , not detect ing
them at all . Always keep an eye on the direction you are traveling
and the relevant ar ea around th e vehi cle .
• Please note that side a ssis t indicate s th ere are approaching
vehi cle s, or vehi cle s in your bl ind spot , onl y after your vehicle has
reached a driving speed of at lea st 37 mph (60 km /h).
• Side as sist sign al doe s not work around t ight corner s (turning
radiu s less than 218 yard s, or 200
ml.
• Side a ssist is no repla cement for the driver's full attention . The
driver alone i s re spon sible for lane ch anges and similar driving
maneuver s. Always k eep an eye on the d ire ction you are tr aveling
and the relevant area around the vehi cle .
Controls and equip ment
0 Note
• To ensure that you do not adverse ly affect s ide assist, do not
b lock the area on the rear bumper where the radar sensors are
located with foreign objects (suc h as stickers or bicycle racks).
• Make su re that the signal light on the outside mirror is not
b locked by stickers or other items.
[ i ] Tip s
• Side ass ist automatically deactivates if it detects that the radar
sensors are
blocked => page 167. The indicator light on the button
goes out.
• The area on the bumper where the radar sensors are located
must consistently re main free of snow, ice, and heavy so iling so that
side assist can function properly. Follow the additiona l notes on
=> page 761.
• Additiona l tinting on the front side windows can make it harder
to see and correct ly understand the s ignal light on the outside
mirror. •
Applies to veh ic les: with side ass ist
Sensor detection area
Fig . 17 4 Schem atic
illu stratio n: Senso r
det ection ar ea
.,.