instrument cluster AUDI S8 2008 Owner's Manual

Clear vision
High b eam
~D
Push the lever forward to switch on the high beam.
- Pull the lever back towards you to switch off the high
beam .
Headlight flasher ~D
- Pull the lever toward the steering wheel to use t he head­
light flasher .
Notes on the se feature s
• The turn signals only work with the ignition turned on . Th e indi­
cator
l ights ¢ or¢ in the instrument cluster ~ page 16 also blink .
• After you have turned a corner, the turn signal switches off auto ­
matical ly .
• The high beam works only when the head lights are on . The indi ­
cator light
~D in the instrument cluster illuminates when the high
beams are on.
• The headlight flasher works only as long as you hold the lever -
even if ther e are no lights turned on. The indicator light
~D in the
instrument cluster illuminates when you use the headl ight flasher.
• With the switch in the
AUTO position, the high beams can only
be turned on if the function is switched on in MM I
=> page 70.
0 Note
Do not use the high beam or headlight flasher if you know that these
could blind oncoming traffic .•
Interior lights
Front interior lights
T he in terior lights include rea ding ligh ts for b oth the
d river and the fr ont passenge r.
--
1111
, I I, . II
-
~
•
'
'.(ZW
ro ,1@1
111111111
0
Interior lights
-
®
111111111
...
/!
111111111
0 Fig . 6 3 Rooflining:
Fr ont inter ior light s
Fi g. 64 Rooflining:
F ront readin g ligh ts:
- Press the @J button to tur n off the interior lights
~ fig . 63. If you pre ss the butt on a secon d time, the inte­
ri o r ligh ts in the rear ar e also t urned off .
- Press the
(ID butto n to turn on the door contact circui t.
Press the button a second time to tur n on the door
contact circ uit for the rear doors .

On the road -----------------
& W AR NIN G (c ontinu ed )
re qu ir e d to ste er or br ake the vehicle . If you are n ot prep ared , this
c ould r esult in a colli sion and serious per sonal injur y.
• For y our safet y, move the sele cto r lever to the P po sition , then
turn off the engine. Oth erw ise the vehi cle could inad vertently roll
away.
• After tu rning off the engin e, the r adi ato r fa n ca n co me on and
ru n for up to 10 minute s
-even if the ignition is sw itched off . Like­
wise , the fan could com e on if the temper ature in the engine
c omp artm ent r ais e s du e to he at build up or if you le ave the vehicle
s tanding in direc t sunligh t.
0 Note
After driving at high engine load, heat can bu ild up in the engine
compartment after you have turned off the engine. This can damage
t he engine . Let the veh icle stand and run in id le for about 2 minutes
before turning off the engine .•
Applies to vehicles: with Advanced Key
Driver's messages in the instrument cluster
Messages appear in the instrument cluster to let the
driver know if something is missing or if some thing must
be done.
No ke y identified
This message appears when you press the [ START ] button, but
t here is no remote control key insi de the vehicle or i f the system
does not recognize the key . For example, if your key is
shielded by
an object or
encased, i.e . ins ide an a lum in um br iefcase, the sig nal
from the key cannot be detected. E lectronic devices such as cell
phones can also interfere with t he rad io signa l.
Controls and equip­
ment P
re ss bra ke pedal to start engine
This message appears when you press the [ S TART] button when
starting the engine but you have not depressed the brake pedal.
En gage N or P to start engine
This message appears when you start the engine but the selector
lever is not in t he P or
N pos ition. The e ng ine can be started o nly if
the selector lever is in one of these two positions .
-.?. Key not in vehicle
This message appears together with the -:?e symbol when the
remote con trol key is removed from t he ve hicle whi le the engine is
running . This is to remind you that you should not continue your trip
without you r key .
I f the key is no longer inside the veh ic le when you turn o ff the
engine, you will not be able to switch on the ignition or restart the
eng ine. Also, you w ill not be ab le to loc k the veh icle from the
outside.
S hift t o P, other wise vehi cle ca n roll away. Doors d o not lo ck if le ver
i s not in P.
This message appears for your safety together wit h an aud ib le
warning signa l when you press the [S TO P] button but the selector
lever is not in the P posit ion and you open the driver's door. Move
the selector lever into P, otherwise the vehic le could rol l away. In
addit ion, you will not be able to lock the vehicle with either the lock
button located on the door handle or the remote control.
To engag e steering lo ck, pre ss a nd hold S TOP button
This message appears for your personal safety if you switch off the
engine and the ignition by pressing the [ S TOP ] button and then
open the driver's door. In this case, the steering will sti ll not be
locked. The stee ring wheel wi ll lock :
• If you press the [ STOP] button for longer than 1 second.
• If you lock the vehicle fr om the outside .•

___ O_ n_t_ h_ e_ ro_ a_d __________________________________________________ _
Electromechanical parking brake
Operation
The electromechani ca l parking brake replaces the hand
brake.
F ig. 148 C enter
co nso le: P arki ng b ra ke
Pu ll the switch to app ly the parking brake==> fig. 148. The
indicator light in the sw itch will come on.
Step on t he brake pedal o r th e acce lerator pedal and
press th e switch at the s am e time to rel eas e the parking
brake . The indicator light in t he switch w ill go out .
Your vehicle is equ ipped w ith an electromechanical parking brake
which replaces the handbrake . The parking brake is designed to
prevent the vehicle from rolling unintentionally .
In addition to the norma l functions of a trad itiona l hand brake, the
e lectromechanical parking brake provides various convenience and
safety functions.
Em erg ency brake
An emergency brake ensures that the vehicle can be slowed even if
the
normal brakes fa il=> page 136, "Emergency braking".
Indi cat or light s
• If the pa rking brake is app lied with the ignition turned on , the
indicator light in the instrument cluster (U.S. models:
::i , Canadian
models: ©) and in the switch © will come on .
• If the parking brake is applied with the ignition
tu rn ed off , the
indicator light in the instrument cluster (U .S .
models :~~ . Canadian
models :(®) ) and in the
switch (®) will come on for about 30 seconds
and then go out.
& WARNING
I f the vehicle i s stati onary and the transmis sion i s engaged with
the eng ine runnin g, the engine should n ot b e speeded up (e .g .
manu ally from under the ho od). Otherw ise th e vehi cle w ill start to
mo ve
-you r un the ris k of an ac cident .
0 Note
If the warning/indicator light (U .S . models: BRAKE , Canadian models:
«D>) flashes in the instrument cluster, there is a brake system
malfunction . By pressing the
I CH ECK] button , you can bring up a
driver message which explains the malfunction in more detail. If the
message
Parking brake! Plea se conta ct w ork shop appears, there is
a parking brake malfunction which you should have repaired imme ­
diate ly by an authorized dealership =>
page 30.
[ i] Tips
• You can app ly the parking brake at any time -even with the igni ­
tion turned off . T he ignition must be turned on in order to release
the parking brake.
• Occasional noises when the parking brake is applied and
released are norma l and are not a cause for concern .
• The parking brake goes through a se lf -test cycle at regular inter ­
va ls
-when the vehicle is parked. Any associated no ises are
normal. •

___ o_ n_ t_
h _e _ ro_ a_d __________________________________________________ _
Starting off with a trailer To prevent rolling back unintentionally on an incline, do
the following:
- Keep the switch pulled and depress the accelerator. The
parking brake stays applied and prevents the vehicle
from rolling backward.
- You can release the switch once you are sure that you are
developing enough forward momentum at the wheels as
you depress the accelerator.
Depending on the weight of the rig (vehicle and trailer) and the
severity of the incline, you may roll backwards as you start. You can
prevent rolling backwards by holding the parking brake switch
pulled out and accelerating -just as you would when starting on a
hill with a conventional hand brake. •
Emergency braking
In the event that the conventional brake system fails or
locks.
- Pull the switch and continue to pull it to slow your vehicle
with the parking brake in an emergency.
- As soon as you release the switch or accelerate, the
braking process stops.
If you pull the switch and hold it above a speed of about 5 mph (8
km/h), the emergency braking function is initiated . The vehicle is
braked at all four wheels by activating the hydraulic brake system.
Brake performance is similar to making an emergency
stop~ &.
So that emergency braking is not activated by mistake, an audible
warning tone (buzzer) sounds when the switch is pulled . As soon as the switch is released
, or the accelerator pedal is depressed, emer­
gency braking stops.
& WARNING
Emergency braking should only be used in an emergency, when
the normal foot brake has failed or the brake pedal is obstructed .
Using the parking brake to perform emergency braking will slow
your vehicle as if you had made a full brake application. The laws
of physics cannot be suspended even with ESP and its associated
components (ABS, ASR, EDS). In corners and when road or
weather conditions are bad, a full brake application can cause the
vehicle to skid or the rear end to break away -risking an
accident. •
Driver messages in the instrument cluster
Caution: Vehicle parked too steep
This message appears when the parking brake is applied on an
incline that exceeds about 30%.
In this case the braking power of the parking brake may
not be
adequate
to prevent the vehicle from rolling unintentionally.
Please release parking brake
This message appears, when a gear is selected and the accel erator
pedal is depressed -release the parking brake.
Press brake pedal to release parking brake
This driver message appears when the switch to release the parking
brake was pressed. The parking brake can only be released if you
press the brake or accelerator pedal and press the switch at the
same time .
~ Parking brake malfunction !
This driver message appears together with the yellow 'Jlf symbol
when there is a parking brake malfunction.
~

_________________________________________________ O_ n_ t_h _e _ ro_ a_d _ ___._
0 Note
If the warning/indicator light (U.S. models : BRAKE, Canadian models:
<CD>) flashes in the instrument cluster, there is a brake system
malfunction. By pressing the
I CHECK] button , you can bring up a
driv er m essage which explains the malfunction in more detail. If the
message
Parking brake! Please contact workshop appears, there is
a parking brake malfunction which you should have r epaired imme­
diately by an authorized
dealership => page 30. •
Cruise control
Switching the system on
The cruise control system makes it possible to drive at a
constant speed starting at 20 mph (30 km/h).
rr- -- ...--,,-~------ -~ ----,-~
Contro ls a nd eq uip­
ment
.... S? w ;f,
Fig . 149 Control lever
with set button Fig
. 150 Display:
Selected speed
Pull the lever © to position G) ~ fig. 149 to switch the
system on.
Drive at the speed you wish to set.
- Press button
® to set that speed.
The display => fig. 150 will show the set speed . The display may vary
depending on the type of display in your vehicle. The indicator light
CRUISE (US model)/ 0 (Canadian model) will also ligh t up in the
instrument cluster .
The speed is kept constant via an engine output adjustment or active brake intervention .
& WARNING
• Always pay attention to traffic even when the cruise control is
switched on. You are always responsible for your speed and the
distance between your vehicle and other vehicles.
• For safety reasons, the cruise control should not be used in the
city, in stop-and-go traffic, on twisting roads and when road condi­
tions are poor (such as ice, fog, gravel, heavy rain and hydro­
planing) -risk of accident.
• Turn off the cruise control temporarily when entering turn
lanes, highway exit lanes or in construction zones.
Vehicle care
I I irechnical data

____________________________________________ ..:.A..:.= d:.:a:.! p::. t
.:.: i:..: v :..: e::......: C::.:..: ru=.:.: is::.:e::.....: C::.::: o:..:.n.:..: t:.: r..: o :.: l:...__J9I
Adaptive Cruise Control
Speed and distance control system
Applies to vehicles : with Adaptive C ruise Cont rol
Description
The Adaptive Cruise Control driver assistance program is
a combined speed and distance control system .
Fig. 151 Front
bumper: Position of
radar sensor
Any speed between about 20 mph (30 km/h) and about 95 mph (150
km/h) can be set and held with the Adaptive Cruise Control. The
system also helps keep a distance you previously selected to vehi ­
cles ahead of you.
Adaptive Cruise Control can help reduce driving stress and fatigue
by maintaining a preset speed with automatic braking and acce ler ­
ation. Driving can be more relaxed, particularly on long trips on
interstates or on other highways that are genera lly straight.
How does it work?
A lever on the steering wheel column operates the Adaptive Cruise
Control)=> page 141, "How is the speed stored?" and=> page 143,
"How is distance set?".
Contro ls a nd eq uip­
ment
Driver information
Important information is brought up in the speedometer and in the
instrument cluster display as the vehicle is being driven
=> page 144, "Driver information".
What is important for you to know
There are limits to what Adaptive Cruise Control can do as the
vehicle is being
driven => page 149, "Special driving situations" .
LJ}. WARNING
Improper use of the Adaptive Cruise Control can cause collisions,
other accidents and serious personal injury.
• Never drive at speeds that are too high for traffic, road and
weather conditions.
• Never follow the vehicle in front so closely that you cannot stop
your vehicle safely. The Adaptive Cruise Control cannot brake the
vehicle safely when you follow another vehicle too closely. Always
remember that the Adaptive Cruise Control has a braking power
that is only about 25% of the vehicle's maximum braking ability,
the automatic braking function cannot bring the vehicle to a stop.
• Never use Adaptive Cruise Control on roads where you cannot
drive safely at a steady speed, including city or stop-and -go or
heavy traffic, on winding roads or when road conditions are poor
(for example , on ice, gravel , in fog , heavy rain or on wet roads that
increase the risk of hydroplaning).
• Always turn off Adaptive Cruise Control when entering turn
lanes , highway exit lanes and construction zones or similar situa­
tions because the vehicle will automatically accelerate to the
stored speed
• Never rest your foot on the accelerator pedal, especially when
the Adaptive Cruise Control is being used because doing so will
override the braking function and prevent the brakes from being _.,
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 _l ___________________________________________ _
-Drive at the speed you want. The speed must be between
20 and 95 mph (30 and 150 km/h).
Press the SET button to store the desired speed .
Release the SET button to store mainta in the current speed . The
instrument cluster display shows the stored speed with a red indi ­
cator ligh t. •
Applies to vehi cles: wit h Ada ptiv e C rui se C ont rol
Changing stored speed
Speed can be changed without touching the accelerator
or brake pedal.
Fig . 155 Control lever:
Changing speed
Increasing speed
Press the lever up briefly toward the G). Speed increases
by about 2.5 mph. Canada models: speed will increase by
one mark on the speedometer scale .
-Press the lever up toward 0 and hold it. Speed increases
as long as you keep pressing the lever up.
Reducing speed
-Press the lever down briefly toward the Q . Speed
decreases by 2.5 mph. Canada models: speed will
decrease by one mark on the speedometer scale.
-Press the lever down toward the O and hold it. Speed
decreases as long as you keep pressing the lever down.
[ i] Tips
You can increase your speed at any time by stepping on the acceler­
a tor pedal. After you release the accelerator pedal, the system auto ­
matically adjusts back down to the speed you previously set . A new
desired speed can be stored at any time by pressing the SET
button. •
App lies to vehicl es : w ith Ada ptive Cru ise Co ntro l
Turning Adaptive Cruise Control off
temporarily
In some situations it makes sense to turn Adaptive Cruise Control off temporarily.
Fig . 156 Control lever:
Turning Adaptive
Cruise Control off
temporarily
Performing the following steps turns Adaptive Cruise
Control off temporarily:

_____________________________________________ A_ d_a ....: p_ t_ i_ v _e_ C_ ru_ is_ e_ C_ o_n_ t_ r_o _ l _ __.11111
-Step on the brake pedal or
-Press the control lever to the rear (not latched)
~ page 142, fig . 156.
When the system is turned off temporarily , the speed sto red a t the
time is retained.
To resume the stored speed, remove your foot from the brake peda l
and pull the control l ever forward.
Ap plies to vehicles: with Ad apt ive Cru ise Contro l
How is distance set?
Distance can be set in four stages.
Fig . 157 Co ntrol l ever:
Settin g distance
Increasing distance
-Push the s lide r switch once toward G) ~ fig . 157. The
distance currently set is s hown for 3 seconds in the
instrument cluster disp lay.
-Push the s lider sw itch again towar d G), to increase the
dista nce by one step.
Contro ls a nd eq uip­
ment
& WARNING
Improper use of the Ad apti ve C ruise Control can caus e colli sio ns,
other a ccident s and seri ou s per sona l injurie s. Never re sume the
s to red sp ee d if th e speed i s to o high for pr evailin g road , traff ic or
wea th er condition s. •
Reducing distanc e
Push the slider switch once toward Q . The dista nce
current ly set is shown f or 3 seconds in the instrument
cluster d isp lay .
P u sh the s lider switch
again towar d Q, to decrease the
dist ance by one step.
The distance at which Adaptive Cruise Contro l fo llows a vehicle in
front is determined by
time in tervals. A time interval is established
which is mainta ined to a vehicle in front . This produces a speed ­
dependen t interval. The higher the speed , the greater the safe ty
interval in yards (meters) .
For example , if the interval
DIST AN CE 3 is set , a vehicle in front is
followed at a
time interval of 1.8 seconds .
• For a speed of
55 mph th is would be equiva lent to a distance of
4 8 y ard s to the vehic le in front .
• For a speed of
100 km /h this would be equivalent to a distance
of
5 0 m eter s to the vehicle in front. _.
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 _l ___________________________________________ _
DISTANCE 1 DISTANCE 2 DISTANCE 3 DISTANCE 4
Symbol
~-~---~--~--~---~-~----~
-
Time interval
Dynamics 1 second
Sporting 1.3 seconds
Standard 1
.8 seconds
Standard 2.3
seconds
Comfortable
& WARNING
• Following other vehicles too closely increases the risk of colli­
sions and serious personal injury.
• Setting short distances to the traffic ahead reduces the time
and distance available to bring your vehicle to a safe stop and
makes it even more necessary to pay close attention to traffic.
• Always use good judgment and select a safe following distance
for the traffic, road and weather conditions.
[ i) Tips
• Distance can be adjusted using the slider switch on the lever and
th rough
Adaptive Cruise Control in the MMI menu => page 148. The
settings in the MMI menu are stored automatically and allocated to
the remote control key.
• If the distance was not set in the MMI menu
Adaptive Cruise
Control ,
it is rese t to the fa ctory setting DISTANCE 3 when the igni­
tion is turned on. •
Driver information
Applies to ve hicles: w it h Ad aptive Cru ise Co ntro l
Displays in the instrument cluster
Depending on the driving situation , driver information is
displayed in the instrument cluster.
© Primary display in the speedometer .
Fig. 158 Overview
instrument cluster
@ Supplementary display in the instrument cluster display.
© Message in the instrument cluster display.
© Primary display
Important information concerning vehicle operation with Adaptive
Cruise Control is shown in display area @. Th e desired sp eed you
set is highlighted in the speedometer and the warning lights show
wh ether adjus tmen ts are being mad e for an objec t ahead .
.,,

_____________________________________________ 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