2010 AUDI S8 warning

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Vehicles moving in your direction can be detected up to a distance of
about 140 yards (130 meters) but the Adaptive Cruise Control cannot
detect vehicles that are stopped or stalled, obstacles that do not
move or narrow vehicles like motorcycles and bicycles .
Open road
When the road is clear, Adaptive Cruise Contro l works like cruise
control. It maintains a constant target speed specified by the driver.
Driving in traffic
If a slower vehicle driving ahead is detected, the Adaptive Cruise
Control decelerates (within the limits of the system) =>
page 139 to
its speed and after adjusting, tries to maintain the set distance from
the vehicle ahead. The vehicle may temporarily drive slower than the
set speed while adjusting=>
& in ''Description " on page 128 .
If the vehicle in front accelerates, Adaptive Cruise Control a lso acce l­
erates up to the speed that you have set.
Situations requiring driver intervention
In some situat ions you will have to use the foot brake and slow the
vehicle down in order to keep a safe distance from vehicle in front of
you or to avoid a rear-end co llision . In this situation, a symbo l
appears and a warning tone sounds =>
page 135.
Passing another vehicle
If you move into the passing lane and no vehicle is detected ahead,
Adaptive Cruise Contro l accelerates to the speed you have set and
maintains it.
Overriding ACC
You can increase your speed at any time by stepping on the acceler­
ator pedal. After you release the accelerator pedal, the system
adjusts back down to the speed you previously set.
& WARNING
• Never rely on the distance control feature of ACC alone to
prevent rear-end collisions . Always be prepared to brake and take
evasive action to avoid collisions and other accident situations.
• Never allow the closing speed between you and other vehicles
to be so high that the Adaptive Cruise Control may not be able to
slow your vehicle safely. If closing speed is too high, you must
apply the brakes yourself to reduce the risk of a rear-end crash.
(I] Tips
Please note that the amount of acceleration the Adapt ive Cru ise
Control uses depends on the Distance setting selected. DISTANCE 1
gives you acceleration that is dynam ic and sporty. DISTANCE 4, on the
other hand, gives more moderate acce leration. For more information
about the time intervals =>
page 133, "Ho w is the distance set?". •
Applies t o ve hicles: w ith Ad ap tiv e Cr uise Contr ol
Switching the system on and off
Switching the system on
-Pull the lever to position (D.
"' "' M ~ w
" m
Fig. 140 Control
lever: Switching on
and off

Ill Adaptive Cruise Control ..__..,____ _____________ _
After re leasing the co ntrol switc h, the system regu lates t he speed to
t he val ue jus t set.
& WARNING
Improper use of the Adaptive Cruise Control features and inatten­
tion can lead to an accident causing serious personal injury .
• It is dangerous to use the "RESUME " feature when the previ­
ously set speed is too high for e xisting road , traffic or weather
conditions.
• Always read and heed the information and WARNINGS=>
& in
" Description " on
page 128.
(I) Tips
You c an in crease y our spee d at a ny tim e by st ep ping on the acceler ­
ator peda l. After you release the accelerator peda l, the system auto­
mat ically adjusts b ack dow n to the spee d you prev iousl y set. A new
desi red speed can be stored at any time by pressing the [ SE TI but ton
=> p age 13 1, fig. 141. •
Appli es to veh icles : w ith Adapt ive C ruise Co ntrol
Turning Adaptive Cruise Control off
temporarily
In some si tuations i t ma kes sense to turn Ada ptive Cruise
Co ntr ol off te m po rari ly.
Turning control off temporarily
- Step on t he b rake peda l or
Fig. 143 Control
le ver: Turni ng Adap·
tive Crui se Control off
temp orarily
-Press the cont rol le ve r in t he dir ection of th e arrow @(n ot
la tc h ed)
=> fi g. 14 3.
Reactivating control
- To res ume t he store d sp eed , release t he b rak e ped al and
p ress t he cont ro l lever i n th e dire ctio n of the arrow
(D .
& WARNING
Improper use of the Adaptive Cruise Control can cause collisions ,
other accidents and serious personal injuries.
• Never resume the stored speed if the speed is too high for
prevailing road, traffic or weather condition s. ..,

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DISTANCE 1
Symbol ~-~---
Time interval 1 second
Dynamics Sporting
Distance at 25 mph (40 km/h ) 36 Feet (11 Meters)
Distance at SO mph (80 km /h ) 72 Feet (22 Meters)
Distance at 75 mph (120 km /h) 108 Feet (33 Meters)
& WARNING
Following other vehicles too closely increase s the risk of a crash
and ser ious personal injury.
• Following other vehicles too closely, particularly at higher
speeds inc reases the r isk of collisions and serious personal injury.
• Setting short distances to the traffic ahead redu ce s the time
and d istance available to br ing your vehicle to a safe stop and
make s it even more ne ce ss ary to pay clo se attention to traffi c.
• Always select a speed and distance to traffic ahead that is safe
and appropriate under the prevailing traffi c, road, weather and
lighting cond itions.
• Never rely on the distance control feature of ACC alone to
prevent rear -end collisions . Always be prepared to b rake and take
ev asive action to avoid collisions and other accident situ ations .
• Never allow the closing speed between you and other vehicles
to be so high that the Adaptive Cruise Contr ol may not be able to
slow your vehicle safely . If closing speed is too high , you must
apply the brake s yourself to reduce the ri sk of a rear -end cra sh.
• Always select a g reate r following di stance to the vehicle ahead
on wet road s than on dry road s.
• Always read and heed the information and WARNINGS~
& in
" Description " on
page 128 .
DISTANCE 2 DISTANCE 3 DISTANCE 4
c::::::> __ c::::::> __ ~---~- ~----~
1.3 seconds 1.8 seconds 2.3 seconds
Standard Standard Comfortable
46 Feet ( 14 Meters) 66 Feet (20 Meters) 82 Feet (25 Meters)
95 Feet (29 Meters) 131 Feet (40 Meters) 167 Feet (51 Meters) 197 Feet (60 Meters) 249 Feet (76 Meters)
[ i ] Tips
• Distance can be adjusted us ing the slider sw itch on the leve r and
throug h Adaptive Crui se Control in the M MI menu~
page 138. The
sett ings in the MMI menu are sto red automatically and allocated to
t he remote cont ro l key .
• If the distance was not set in the MMI menu Adapt ive Cruise
Control , it is reset to the factory sett ing DISTANCE 3 when the ign i­
tion is turned on. •

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Driver information
Applies to veh icles: with A daptive C ruise Cont ro l
Displays in the instrument cluster
Depending on the driving situation, driver information is
displayed in the instrument cluster .
@ Primary d isp lay in the speedometer .
Fig. 145 O vervi ew
in strume nt clu ster
@ Supplementary display in the instrument cluster .
© Message in the instrument cluster d isp lay.
@ Primary display
Important information concerning vehicle operation with Adaptive
C rui se Con trol i s shown in display area @ . T he desired speed you set
is highlighted in the speedometer and the warning lights show
whet her adjustments are being made for an object ahe ad.
T hi s information is always displayed. Display area@ is the refore
called the
primary di splay.
@ Supplementary display
In d isp lay area @ information from the navigation system a nd the
trip computer is displayed in addit ion to information about Adapt ive
Cru ise Control.
Con tro ls a nd e quip ·
m en t Vehicle
OP-eration
You can select among the different information by repeated brief
ta ps o n the R ES ET button on the windshield wiper lever =>
page 38,
"Operatio n".
Particularly on your first trips with Adaptive Cruise Control, the
s upplementar y display should be tur ned on .
© Message
The information in a rea © is not displayed permanently . Informat ion
is displayed on ly if you c hange the time interval, if there is a malfunc ­
tion or if the Adapt ive Cru ise Contro l is turned off .•
A p plies to v ehicles : wi th Adaptive C ru ise Cont ro l
Primary display in the speedometer
Desired speed
Fi g. 14 6 Pr im ary
d is p lay
i n the spe ed ·
o m et er
Th e desi red speed set by the d river is displayed wi th a red L ED .
T he system a llows only speeds from 20 to 95 mph (30 to 150 km/h)
to be set . This speed range is faint ly illumina ted in the speedometer.
Warning lights (symbols)
• ""c::;, Open road: T he wa rning lig ht ""c::;, shows that AC C is active
and that no moving vehicle has been detected with in range of the
ra dar senso r up ahead in your lane of travel. The set speed is main-
tained . _,,,
Vehicle care Do-it-yourselt service iTechnical data

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• -0,11,c::::, Driving in tr affic: The warning light c:::::,11 .. -::::::, shows that a
vehicle moving in yo ur lane of travel h as been de tecte d up fron t in
your lane o f travel. Your speed is adjusted accord ing to the speed of
the vehicle up front. ACC accelerates an d brakes automat ically within
the system's capabil ities .
• -011 ,,-0 Request for driver to assume control : The re d flashing
warning light
c:::::, 11 .. c::::, means Request for driver to assume control.
Yo u as the driver must slow the vehicle with the foot brake . T he
symbo l
-::::::,11,, c::::, t el ls you that the Adapt ive Cr uise Contro l is not able
to slow the vehicle down e nough to keep a enoug h distance to the
vehicle in front of you. A wa rning to ne signa l will a lso sound w hen the
symbol appears .
& WARNING
Improper use of the Adaptive Cruise Control features and inatten­
tion can lead to an crash and serious personal injury.
• Never allow the closing speed between you and other vehicles
to be so high that the Adaptive Cruise Control may not be able to
slow your vehicle safely. If closing speed is too high , you must
apply the brakes yourself to reduce th e risk of a rear-end crash.
• Always sele ct a greater following di stance to the vehicle up
ah ead on w et roads than on dry roads.
• Always read and heed the information and WARNINGS~
& in
" Description " on
page 128.
[ i J Tips
• If the Adapt ive Cruise Control in itiates braking, the hydraulic
bra ke system is under pressure . Therefore, t he b rake pedal distance
is shorter and the pedal feels "harde r" .
• If yo u use the acceler ator to go f aster th an the speed o f the
vehicle ahead of yo u, the d river intervention prompt will not be
accompanied by a warning to ne.
• If the speed you previously set is exceeded, t he indicato r light in
t he speedomete r will sw itch o ff. •
A ppli es to veh icles : w ith Adaptive Cruise Co ntrol
Display in the instrument cluster
You should hav e the supplementary information
displayed here, p articularly on your first trips .
Fig. 147 Displ ay i n
t he in strument clu ste r
Scr oll throug h the av ail able inform ation dis plays by br ie fl y t appi ng
the (RESE T) button at the end of the windshield w iper lever . You can
sele ct a nd information from the trip comp ute r, navigation sys tem or
Adaptiv e Cr uise Control.
© Vehicle sy mbol
® St atu s
© Distan ce
© Vehicle symbol
Th e veh icle symbol indicates whe ther the sy stem has de te cted a
moving veh icle up front in your lane of travel.
• When no moving ve hicle is detected up fro nt, only the
outline of
the vehicle
is d isp laye d.
• A
gray vehicle wi ll appear when a moving vehicle is de tected up
ahead .
• A
red vehicle will appea r if th e s itua tio n de te cted will s oo n l ead to
a requ est for the driver to assume contro l. .._

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If Adaptive Cruise Control is turned off or no speed is set, no vehicle
is shown.
@ Status
• Th e text OFF appears in white letters when Adaptive Cruise
Control is turned off .
• The text
AVAILABLE appears in white lett ers when the system is
turned on but no requested speed has been set .
• The text
OVERRIDE appears in white letters when you exceed the
requested speed by accelerating.
• The text
DISTANCE! appears in red letters when the interval to a
vehicle traveling ahead is too short and you also have to slow your
vehicle with the foot brake .
• Th e text messages
DISTANCE 1, DISTANCE 2, DISTANCE 3 or
DISTANCE 4
appear in green letters to indicate the time interva l
(distance) you have set and ACC is active.
© Distance
A pointer (arrow) is shown in this area. When slowly approaching a
moving vehicle detected ahead in your lane of travel, th is pointer
represents the distance to that vehicle . When approaching that
vehicle rapidly, it serves as early warning of an impending request for
the driver to assume full veh icle control. The pointer moves on a scale
from right to left.
Open road: With an open road and no moving vehicle detected up
ahead, no pointer is shown.
Driving in traffic: If a vehicle t raveling up ahead in your lane of travel
is detected, the pointer moves to the center area of the scale. This
area represents the time interval (distance) set.
It is shown in green
to make it easier to see .
Driver intervention prompt: Whenever the selected time interval
(distance) to the vehicle moving up ahead in your lane of travel is less
than the time inte rval (distance) set, the poin ter moves into the
red
area of the display . When the pointer reaches the farthest position on
the left, the driver in te rvention prompt is displayed to indicate that
Contro ls a nd e quip ­
m en t Vehicle
OP-eration
the driver must now assume full vehicle control in order to prevent a
collision .•
App lies to ve hicle s: w ith Adapti ve Cru ise Cont rol
Messages
The text messages and symbols shown in this area of the
display are not displayed permanently.
Time intervals
Fig. 148 Information
line
Th e different symbols for the time interva ls (distance) appear if you
change the settings::::> fig. 148. In addition, there is a display if the
gong (audible warning signal) is turned off.
Three white dots ... appear if a setting cannot be made w ith the oper­
ating lever . The following are possible reasons
• If you pull the control lever forward to resume speed but no
requested speed was set.
• If you push the lever up to increase (or down to reduce) speed
when no speed has been set previously.
• If you push the lever up to increase (or down to reduce) speed and
this speed is outside the 20 to 95 mph (30 to 150 km/h) speed range . ..,
Vehicle care Do-it-yourselt service Technical data

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ACC not available
The text message ACC not available appea rs, fo r example, if the
t empe ra ture of the b rakes is excessive . Adaptive Cru ise Contro l is
tempo rar ily not ava ilab le. A war ning tone sounds as a reminder.
ACC not available!
T he text message ACC not available! appears in the event o f a
ma lf u nction . Adaptive Cru ise Contro l is tur ned off . A warn ing tone
sounds as a remi nder. Have the system inspected by a qualifie d dea l­
ers hip.
ACC sensor blocked
The text message ACC sensor blocked appears when the ACC System
does not detect a ny objects over an extended t ime per iod . For the
time being, the distance to ve hicles up ahead is not being con trolled .
T he ACC system is not switched
off, so increased alertness is require d.
Th e fo llow ing m ay be reasons fo r the text m essag e ACC senso r
blocked:
• The ACC se nsor is di rty. T he AC( syst em is no t reacti ng, or is not
reacting correctly, to vehicles traveling ahead .
• It is possib le tha t you are dr iv ing on a ro ad wit h ve ry lig ht tra ffic
without anything at the s ide of the road (e.g. gua rd rails, traff ic s igns,
tr ees). A s so on as a vehicle i s de te ct ed b y the sys tem ag ain, it ret urns
to its contro l range a nd the text message disappears.
T he ACC sensor is located in the area unde r the front license p late . If
there is a loss of op eration d ue to heavy co ntam inat ion, this a rea
sho uld cleane d to resto re prope r o peration.
ACC sensor blocked!
T he text message ACC sen sor blocked! a pp ears w hen the A CC System
can no longer accurately detect vehicles movi ng up ahead in your lane
of t ravel. A daptive C ruise Cont ro l i s tu rned off . A warning tone a lso
so unds as a re mi nder.
To decide whether it is necessary to switch off t he ACC (ACC sensor
blo cked !) o r if it is o nly a te mporary c ond ition (ACC se nsor blo cke d), the system will also takes
into cons ideration the outs ide temperature
and/or the windshie ld wiper o per ation.
Th e ACC sensor is d irty or b locked (e .g . leaves, snow) .
The ACC senso r is located in the area under the front license plate. If
th e A CC sensor is dir ty or bloc ke d , clean t he ar ea to res tore sy stem
operat ion.
EPB act ivation
T he text message EPB activation appears i f eme rgency braking was
initi ated wi th the Elec tro mecha ni cal Pa rkin g Bra ke ( EPB). A dapti ve
Cr uise Contro l is turned off. A gong sounds as a reminder.
ESP activation
T he text message ESP activation appears if the E lectron ic Stabi liza­
tion Prog ram ( ESP) has inte rven ed to ta ke co ntrol in a criti cal d riving
sit uat io n. In this case Adaptive C ruise Contro l is automatically turned
off. A gong s ounds a s a rem inder.
Speed range
The te xt message Speed range ap pears if the cur rent speed is too low
to set or to hold the requested speed.
W hen setti ng a desired speed, it m ust be at least 2 0 mp h (30 km/h).
At speeds be low 17 mph (25 km/ h), the cruise contro l is turned off.
Shift lever position!
T he text message Shift lever position! appears w hen the sh ift select
lever is move d to po siti on
N . In t his p osition, Ad aptive C ruise Con trol
is not available. •
App lies to veh icles : w ith Adaptive Cruise Control
Settings in MMI
The time int erval can b e se t in fvf fvfl.
Se ttings in t he Adaptive Cruise Control me nu are poss ible
only with the eng ine ru nning a nd t he ve hicle s tat ionary . _,,,

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- Select: Function button I CAR]> Systems > Adaptive
Cruise Control
> Default setting > distance.
Setting Distance
In the Basic setting menu you can set the distance (time interval)
using
distance 1 , distance 2 , distance 3 or distance 4 that Adap tive
Cruise Control is to maintain to a preceding vehicle when in manage­
ment mode .
Storing settings
Your individua l settings are automatically stored and allocated to the
remote control key being used (remote key perso nalizat io n). •
System Limitations
Applies to veh icles: with Adaptive C ruise Cont ro l
General information
The radar sensor has limits that the driver must know to
be able to use ACC properly.
The Adaptive Cruise Control works within limits that are also related
to radar sensor range and sight distance. In some situations ACC may
react unusually or late from the driver's point of v iew. Therefore,
always be attentive to what is happe ning around you and always be
ready to intervene, if necessary:
• when driving around curves=>
page 139.
• when vehicles up front are not in line with your vehicle
=>
page 140 .
• when other vehicles are changing lanes=> page 140.
• when other vehicles are difficult to detect=> page 140 .
• when vehicles up ahead are no t moving or obstacles are in your
travel lane=>
page 141.
Con tro ls a nd e quip ­
m en t Vehicle
OP-eration
& WARNING
The radar 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 detected at all .
• Alway s pay careful attention to the traffic situation and be
ready to intervene and be ready to take complete control when ­
ever necessary .•
A pp lies to ve hicle s: with Ad aptive Cru is e Con tro l
When driving around curves
k::==;:;;:.::: ======== =,~
~
Fig. 149 Vehicle
entering a curve
Fig. 150 Vehicle
leaving a curve
Vehicle care Do-it-yourselt service iTechnical data