ECO mode AUDI S8 2008 Owners Manual

Inst rum ents and warning /indi cato r li ghts
[ i J Tip s
• The digital c lock and the odometer are turned on for about 30
seconds when the driver's door is opened.
• When the ignition is turned off, the odometer reading and the
digital clock with date display can be switched on for about
30 seconds by pressing the
I CHECK) button => page 15, fig. 5. •
Speedometer with odometer
The speedometer shows you the vehicle speed, and the
odometer shows you how many miles (kilometers) you
have driven .
Fig. 4 In strume nt
c lu ster Odom ete r an d
rese t butt on
The odometer and trip odometer are located inside the speedom­
eter.
• USA models -Miles
• Canada models -Kilometers
You can swi tch the display from mi les to k ilometers and vice versa
via the MMI.
L ower odom eter
The lower odometer shows the total number of miles (kilometers)
driven.
U pper od om ete r (tr ip odo meter)
The upper odometer shows the total number of mi les (kilometers)
driven since you last reset the odometer to zero. You can use this
odometer when you wan t to keep track of how many mi les (kilome ­
ters) you have driven for a single trip or errand. The last d igit indi­
cates 1/10 of a mile (100 meters).
You can reset the trip odometer to ze ro by pressing the Reset button
(0.0).
M alf un ctio n message
If there is a malfunction somewhere in the instrument cluster, dEF
wi ll appear in the trip odometer and will stay on. Contact your
authorized Audi dealer to have the prob lem corrected.
Imm obilize r
When you switch on the ignition, the data chip inside the key is
"read" by the immobilizer system.
If an unauthorized key is inserted into the ignition lock, the word
S AFE will come on and stay on. You will not be able to start the
vehicle=> page 49.
[ i J Tips
• The digita l clock and the odometer are turned on for about 30
seconds when the driver's door is opened.
• When the ignition is turned off, the odometer reading and the
digital clock with date display can be switched on for about
30 seconds by pressing the
!CHECK) button=> page 15, fig. 5. •
Fuel gauge
The fuel gauge only works when the ignition is on.
The fuel tank holds about 23 .8 gallons (90 liters). When the need le
reaches the reserve mark,
the=> page 35 symbol appears in the
instrument cluster display as well as the message
Ple as e refue l. .,_

Instrum ents and warnin g/indi cat or li ghts
Significant loss of air pressure (l)
The warning/indicator light appears in the event of a
significant loss of air pressure .
The(!) warning/indicator light il luminates when you switch on the
ignit ion and must go out a fter the eng ine has started.
If the
U) symbo l appears, pressure is too low in at least one tire .
For more information
=> page 42 . •
Malfunction Indicator Lamp (MIL) 0
The Malfunct ion Indicator Lamp (M IU is par t of the On -Board Diag ­
nostic (OBD II) system . The symbol
O lights up when the ignition is
turned on and wi ll turn off after the engine has started and has
sett led at a constant id le speed. This ind icates that the M IL is
working proper ly .
The warning ligh t illum inates when there is a malfunction in the
engine electronic system . Contact your authorized Audi dealer and
have the mal function corrected.
An improperl y clos ed fuel filler c ap m ay als o cau se the MIL light t o
illuminate
=> page 303 .
For more information => page 27. •
Safety belts~
This warning/indica tor light reminds you to put on your
safety belt.
The t warning/indicator light i lluminates when the ignition is
sw itched on to remind the driver and any front passenger to put on
the safety belt . Add it ionally, an acoust ic warning (go ng) wi ll a lso
sound.
For more Information =>
page 209, "Safety belt warn ing light.(,..". •
Adaptive Air Suspension ~
The warning/indicator light ~ illuminates, when the jack ing mode
has been act ivated => page 188 . This warn ing/ indicator light has the
following functions:
• I t illuminates fo r a few seconds after the ignition is turned on as
function check and then goes out .
• I f the war ning/ indicator l ight illuminates steadi ly, there is a
system fau lt in the Adaptive Air Suspension . A system fault can
r esu lt in limited ride comfort and
low ground clearan ce . The fau lt
should be corrected as soon as possib le by an authorized Audi
dea ler.
• If the warning/indicator light flashes, you should not drive the
vehic le . The flas hing warning/indicator light points to an extreme
High level. A very
pronounced lifting of the vehic le (extreme High
l evel) can resu lt, for examp le, when a heavy load is removed from
the veh ic le. As soon as the level has returned to norma l, the
warning/indicato r light stops f lashing, and you can d rive away.
• If the warning/indicator light flashes in con junction with the c;::.:,
warning/indicator light, you shou ld not drive off immediately in
order to prevent damage to the underbody. The two warn ing/ indi­
cator lights flashing together points to an extreme Low level. A very
pronounced lowering of the vehicle (extreme Low level) ca n result,
for example, from a heavy load. As soon as the level has returned to
n ormal, the warning/ind icator lights stop flash ing, and you can
drive away .
0 Note
If the warning/indicator light flashes in conjunction with the c;::.:,
warning/indicator l ight, you shoul d not drive the veh icle because
l ow -lying vehic le parts can bottom out as you drive over uneven
ground and be damaged as a result .•

Adaptive Air Suspension c.::i
The c.::i symbol illuminates for a few seconds after you have
switched on the ignition to indicate
redu ced ground clea ranc e when
the dynamic mode is activated and when the ignition is switched on
with a vehicle which was parked in dynamic
mode ~ page 186,
"Chassis Controls" . On vehicles which are equipped with the s port
s u spen sio n
Adapt ive Air Suspension -Spor t*, the check light does
not come on in this instance since ground clearance is general ly
reduced.
This warning/indicator light has the following functions:
• It illuminates for a few seconds after the ignition is turned on as
function check and then goes out .
• If the warning/indicator light flashes in conjunction with the
<::'.p
warning/ indicator l ight, you should not drive the veh icle immedi­
ate ly in order to prevent damage to the underbody . The two
warning/indicator lights flash ing toget her po ints to an extreme Low
level. A very
pronounced lowering of the vehicle (extreme Low level)
can resu lt, for example, from a heavy load. As soon as t he level has
returned to normal, the warning/ind icator lights stop flashing, and
you can drive away .
0 Note
If the warning/indicator light flashes in conjunction with the~
warning/ indicator l ight, you should not drive the veh icle because
low -lying vehicle parts can bottom out as you drive over uneven
ground and be damaged as a resu lt .•
Cruise control
CRUISE (USA models) / pJ' (Canada models)
The warning/indicator light i lluminates when the cruise control is
activated. •
Controls and equip­
ment
Instrum ents and w arnin g/indi cator li ght s
Anti-lock brake system (ABS)
ABS (USA models)
/0 (Canada models)
T his warning/indicator light monit ors the ABS and the
electronic differential lock (EDL).
The warning/indicator light wi ll come on for a few seconds when the
ignition is switched on. The light will go out after an automatic
check sequence is comp leted .
The re is a malf un cti on in the ABS wh en:
• The warn ing/ indicator l ight does not i lluminate w hen you switch
on the ignition .
• The warn ing/indicator light does not go out after a few seco nds.
• The warning/indicator light illuminates while driving.
The ESP indicator light also illuminates if there is a ma lfunction in
the ABS. The message
E S P / AB S fau lt ! See ow ner 's manu al also
appears in the inst rument c luster display and a wa rn ing tone
sounds.
The br ake system will still r espond even without the assis ta nce of
the ABS s ystem. See your authori zed Audi dealer a s soon a s
pos sib le t o re stor e full br aking perf orm an ce.
For more information
regard ing the
ABS ~ page 272 .
The ABS warning l ight and the br ake w arning light come on
to geth er. The AB S will not work and you will notic e a ch ange in
br ak ing re spon se and p erf orm ance .
Mal function in the brak e system
If the brake warning light~ page 22 and the ABS warning i lluminate
together t h ere may be a malfunct ion in t he ABS, and t here may a lso
be a malfunction in the brake system
itself~ .&..
In the event of a malfun ctio n i n th e bra ke syst em the warning/indi ­
cator light
BRAKE (USA mode ls)/ (Ci)) (Canada models) in the instru ment
c luster flashes. By pressing the
I CHECK] button, you can bring up a
driver message wh ich expla ins the ma lfunc tion in more detail.
Please note
~ page 30 . .,_

Instruments and warning/indicator lights
M alfun cti on in the ele ctronic differential lo ck (EDL )
The ED L wor ks t oget her wi th the ABS. T he ABS wa rn ing light w ill
come on if there is a ma lfunction in the ED L
system=> page 269. See
you r au thor ized A ud i dea ler as soon as possible.
& WARNING
• If the ABS (USA models )/0 (Canada models) warning light
doe s not go out , or if it comes on while driving , the ABS system is
not working properly. The vehicle can then be stopped only with
the standard brake s (w ithout ABS ). You will not have the protec ­
tion ABS provides . Contact your Audi dealer as soon as po ssible .
• USA model s: If the BRAKE warning light , the~ warning light and
the ABS warning light come on together , the rear wheels could
lock up first under hard braking . Rear wheel lock -up can cause loss
of vehicle control and an accident . Have your vehicle repaired
immediately by your authorized Audi dealer or a qualified work ­
shop . Drive slowly and avoid sudden , hard brake applications .
• Canada models : If the brake warning light (CD), the f;. warning
light and the ABS warning light
080 come on together, the rear
wheels could lock up first under hard braking. Rear wheel lock -up
can cause loss of vehicle control and an accident . Have your
vehicle repaired immediately by your authorized Audi dealer or a qualified workshop . Drive slowly and avoid sudden, hard brake
appli cations .
•
Electromechanical parking brake
tffiE (USA models) /{®) (Canada models)
T he war nin g/in dic ator l ight mon it ors the ele ctro mech an­
ical park ing brake .
With the parking brake applied and the ignition turned on, the
wa rning/ ind icator lig ht illu min a te s. Afte r the ig nition has been
turned off, the warning/indicator light continues to i llum inate for
abo ut 30 seconds. If the parking bra ke is a pplied with the ignition turned off, the warning/indicator light i
lluminates for about 30
seco nds.
T he warnin g/ind icator lig ht wi ll go out w hen the parking brake is
r elea sed .
I f t he war ning/indic ator l ig ht fl ashes con tinuously
after applying the
par king brake, bra king force is not sufficient to p revent the vehicle
fr om rol ling u nint en tional ly . This ca n happen if the br ak es b eco me
too hot . Please note the fol lowing :
• I f the slope of the g rou nd is too steep to pa rk t he ve hicle, the
addi tiona l dr ive message a ppears
Caution: Vehicle parked too
steep.
• I n the event of a parking brake ma lfunction , the yel low ·~ symbol
appea rs in the inst rument c luster display and the driver message
Parking brake malfunction ! is d isplayed . Have t he m alfu ncti on
r epaired as soon as possib le by a q ualified Audi dealership .•
Brake system BRAKE (USA models) /(©) (Canada
models)
T he warn ing/ind icator I i ght flash es if br ake fluid level is
low, if th ere is an A BS sys tem m alfunc tion or a p arki ng
br ake malf u n ct ion.
Th e li ght illu mi nates w hen t he ignit io n i s tur ned o n. It goes out afte r
the e ngine has been started . T his indicates that the bra ke warning
li ght is fu nct ioni ng prope rly.
If the brake warning light does not light up when the engine is
cranking , there may be a malfunction in the electrical system . In this
case , contact your Audi dealer.
If the brake system warning/indicator light flashes, there is a brake
syste m malfu nct ion . B y press ing th e
I CHECK ] butto n, you ca n brin g
up a driver message which exp lains the ma lfunction in more detail
::::> p~e~ ~

If the ABS, ESP and brake force distribution fail, the ABS indicator
l ig ht ABS (USA
mod els)/ 0 (Cana da mod els) and t he ESP i nd ica tor
light
f;. come on along with the brake system ma lfunction light
BRAKE (USA m ode ls)/ (@ (C an ada model s). The mes sage Brake fault !
Drive carefully to nearest workshop appears in the instrument
cluster d isp lay and three consec utive wa rning tones
sound =>& .
& WARNING
• USA models: If the BRAKE warning light , the $';. warning light and
the ABS warning light come on together , the rear wheels could
lock up first under hard braking . Rear wheel lock-up can cause loss
of vehicle control and an accident . Ha ve your vehicle repaired
immediately by your authorized Audi dealer or a qualified work­
shop. Drive slowly and avoid sudden , hard brake applications.
• Canada model s: If the brake warning light
(CD) , the ~ warning
light and the ABS warning light
8 c ome on together , the rear
wheels could lock up first under hard braking. Rear wheel lock-up
can cau se los s of vehicle control and an accident. Have your
vehicle repaired immediately by your authorized Audi dealer or a qualified workshop. Drive slowly and avoid sudden , hard brake
applications.
• If the brake warning /indicator light does not go out after a few
seconds and the parking brake released , or lights up while you are
driving , the fluid level in the brake fluid reservoir is too low. If you
believe that it is safe to do so , pro ceed immediately at low speed
to the nearest authorized Audi dealer or qualified repair facility and have the brake system inspected .
• Always keep in mind that after several brake applications, you
will need greater pressure on the brake pedal to stop your vehicle.
Do not rely on strained brakes to respond with maximum stopping
power in critical situations . You must allow for increased braking
distances . The extra distance used up by fading brakes could lead
to an a ccident . •
Controls and equip­ ment
Instruments and warning /indicator lights

Driver information display
The current speed appears on the display. The speed is displayed in
1 mph (US model) or 1 km/h (Canadian model) increments.
You can switch the display from miles to kilometers and vice versa
via the MMI.
•
Open door or trunk lid warning
The pictogram alerts you when doors or the rear lid have
been left open.
Fig. 12 Display: open
door or rear lid
warning
With the ignition switched on, the open door or rear lid warning illu ­
minates when at least
one door or the hood or the trunk lid is not
closed. The symbol also shows you
which door!s) or lid is not
closed .
In the
illustration=:> fig. 12 it is the driver's door, the left rear door
and the rear lid. As soon as al l the doors, the hood, the rear lid and
the fuel filler cap are properly closed, the door and rear lid warning
turns off and the Driver Information System functions selected are
displayed again .•
Defective light bulb warning
The defective light bulb warning tells you when a vehicle
light bulb has become defective.
Fig. 13 Display: defec­
tive light bulb warning
The defective light bulb warning monitors the function of the light
bulbs. If a defective light bulb is detected, or if a light bulb has
burned out, a yellow symbol appears as well as a pictogram in which
the defective light bulb is
shown =:> fig. 13 In the case of certain bulb
failures (e.g. failure of the rear fog lamp), an additional symbol is
displayed to the left or right of the pictogram of the vehicle.
Defective brake light
(USA models )/
_, (Canada models)
If the symbol illuminates, a brake light has failed. The burned out
light is shown in the pictogram.
Defective bulb
If this symbol illuminates, a turn signa l (front or rear), a headlight,
the backup light, a fog light or a rear fog light has failed . T he burned
out light is shown in the pictogram.
& WARNING
• Light bulbs are pressurized and could explode while they are
being changed causing serious personal injury.
.,_

Driver inf orma tio n displ ay
Red symbols
A red symbol means DANGER.
Pull off the road.
-Stop the vehicle .
-Turn off the engine.
Fig . 17 Dis play: en gine
co ola nt leve l warnin g
(pr iori ty 1)
-Check the malfunctioning system. Contact your aut ho-
rized Audi dea ler or a qua lified workshop for assistance.
Red symbols indicate a prio rity malfunction -Danger!
With a priority 1 malfunction, a large symbol appears in the center area of the
disp lay => fig. 17. When the symbol appears, three
warning tones sound in succession . The symbol continues to blink
until the malfunction has been repaired .
After a few seconds, the large symbol is replaced by a small symbol shown at the top left of the display. This symbol is displayed until
the fault is corrected.
If there are more than one priority 1 malfunctions, the symbo ls
appear one after the other for about 2 seconds .
An additional driver message can a lso be d isplayed by briefly
pressing the
( CHECK) button .
The red symbols mean:
BRAKE
-
((l))
©
.....
[ i ] Tips
U SA m od els: => page 30
Brake system malfunction
C anad a mod els:
B rake system malfunction
II=> page 30
Engine coolant level too
=> page 31
low/engine coolant temperature
too high
En gine o il p ress ure too lo w
=> page 32
Faulty steering
=> page 33
Fa ult y ig nition s witch
=> page 33
• If the warning/indicator light
BRAKE (USA mode ls)/ <@ (Canada
models) in the instrument cluster flashes, there is a brake system
malfunction. By pressing the [
CHECK) button, you can bring up a
driver message which exp lains the malfunction in more detail.
Please
note=> page 30.
• Speed warnings threshold 1
8 (USA modelsl /8 (Canada
models) and threshold 2
8 . (USA models)/ 0, (Canada models) are
also shown as red symbo ls . The warning is a lways shown as a small
symbol in the upper area of the
display => page 36 . •
Brake system malfunction
A malfunction in the brake system must be repaired as
soon as possible.
If the warning /indi cator light BRAKE (USA models)/ ((D)
(Canada models) in the instr ument cluster flashes, there is
a brake system malfunction . By pressing the [
CHECK] ~

Driver inf ormation displ ay
Ap plies to vehi cles : wi th Ad aptive Li ght
Adaptive Light defective ~O
g(J Adaptiv e lig ht def ecti ve
When this symbol go illuminates, it means that Adaptive Light is
defective. Go to an authorized dealership to have the head lights or
the control unit for the Adaptive Light repaired. •
Headlight range control defective {G>
(0 Headli ght range co ntr ol d efe ct ive !
If the symbol illuminates, the dynamic headlight range contro l is no
longer working properly . Have the system checked and repaired at
your Audi dealer.
•
Defective light /rain sensor @)
~o Autom atic he adlight s/aut om ati c wi pers defe ctive
If the symbol il luminates, the light/rain sensor has fai led. For sa fety
reasons the low beams are turned on permanently with the switch
in
AUTO. H owever, you can continue to tur n the lights on and off
using the light switch . If the rain sensor fails, the functions of the
windshield wiper lever wil l stil l work . Contact your authorized Audi
dea ler as soon as possible to have the problem corrected .•
Speed warning system
Overview
The speed warning syste m hel ps you to keep your driving
speed below a set speed limit.
T he speed warning system warns the driver if he exceeds a previ ­
ous ly stored maximum speed . A warn ing tone will sound as soon as
the vehicle speed exceeds the set speed by about 3 mph (3 km/hl. At
the same time, a warning symbol appears in the disp lay.
The speed warn ing system has
two w arning thre shold s that func ­
tion independent ly of each other and that have somewhat d ifferent
purposes :
Speed warning 1 8 {USA mod els l/8 {Canad a m odels)
You can use speed warning 1 to set the maximum speed whi le you
are driving . This setting will remain in effect until you turn off the
ign it ion,
assu ming that you have not changed or reset the setting .
T he speed warning symbol
8 (USA modelsl/ 8 (Canada models) in
t he warn ing 1 disp lay appears when you exceed the maximum
speed . It goes out when the speed falls below the stored maximum
speed.
T he speed warn ing symbol wi ll also go out if the speed
exceeds th e
stored maximum speed by more than about 25 mph ( 40 km/h) for at
l east 10 seconds. However, t his does not reset the stored maximum
speed .
Setting speed warning 1
~ page 37 .
S pe ed wa rning 2
6 {USA m odels l/ 8 {Ca na d a models )
Storing warning 2 is recom mended if you always want to be
reminded of a certain speed, for example when you are traveling in
a co untry that has a general maximum speed l imit, or if you do n ot
want to exceed a specified speed for winter tires.
~

The speed warning 2 symbol, 8, (USA models)/ 8, (Canada models)
appears in the disp lay when you exceed the stored speed limit.
Un like warning 1, it wil l not go out unti l the vehicle speed drops
below the stored speed limit .
Setting speed warning 2
=> page 37.
[ i J T ips
Even though your vehicle is equipped with a speed warning system,
you should still watch the speedometer to make sure you are not
driving faster than the speed limit. •
Speed warning 1: setting a speed limit
Warning threshold 1 is set by the I CHECK) button.
(CHECK • fo.o'
Storing the maximum speed
- Drive at the desired maximum speed.
Fig . 19 C HEC K but ton
in th e inst ru m ent
c lu st er
- B riefly press the I CHECK) b utto n ~ fig. 19.
Rese tting the m aximum speed
- Drive the vehicle at a speed of at least 3 mph (5 km/h)
- Press the
I CHECK] button for more t han 1 second .
Controls and eq uip­
ment
Dr ive r inf ormati on d ispl ay
The speed warning symbol 8 (USA models)/ 8 (Canada mode ls) will
appear briefly in the display when you release the button to indicate
that the maximum speed has been stored successfully.
The maximum speed remains stored unti l it is changed by pressing
the button again briefly or unti l it is deleted by a lengthy push on the
button. •
Speed warning 2 : setting a speed limit
Warning threshold 2 is set, changed and deleted in MM/.
Fig. 20 MMI d isp lay :
Se t w arni ng thr esho ld
2
Switching spe ed warning on and off
- Press the
I CAR) function button.
- Select
System s in the CAR menu.
- Select
Instrume nt clus ter . The Instrument cluster menu
appea rs~ fig. 20.
- Select Speed warning
On to switch on the warn ing
threshold or
Off to turn off the warning threshold.
Setting and adju sting th e warning threshold
- Press the
I CAR I fu nction button.
Select
Systems in the CAR menu.
Vehicle care I I irechnical data

Driver information display
-Select Instrument cluster. The In strument cluster menu
appears .
Select the second item in the
Speed warning menu. The
submenu
Speed threshold appears ~ page 37, fig. 20.
Set the warning threshold you want .
Warning threshold 2 can only be set in a speed range from 20 to
150 mph (30 to 240 km/h). •
Trip computer
Introduction
The trip computer gives you information on current and
average fuel mileage, average speed, fuel range and
driving time.
Fig. 21 Trip comput er
di sp lay : Average fuel
mil eage
The following driving information is continuously evaluated by the
trip computer and can be displayed sequential ly in the instrument
cluster display.
Fuel range
The estimated cruising range in miles (km) appears in the display.
This tells you how far your vehicle will be able to travel on the current tank of fuel and with the same driving style. The display
changes in increments of 6 miles (10 kml.
The cruising range is calculated based on the fuel consumption for
the last 18 miles (30 km). If you drive conservative ly, the cruising
range will increase.
Average fuel mileage
The average fuel economy in MPG (1/100 km) since you last cleared
the memory appears in this display . You can use this disp lay to
adjust your driving technique to achieve a desired mileage .
Current fuel mileage
The instantaneous fuel consumption in miles per gallon (1/100 km)
is shown in this display. You can use this display to adjust your
driving technique to achieve a desired mileage.
Fuel consumption is recalculated at interva ls of 33 yards (30
metres). When the vehic le is stationary, the most recent fuel
consumption is displayed.
Average speed
The average speed in mph (km/h) since the last time the display was
reset appears in the display.
Elapsed time
The length of time that you have been driving since you last reset
the memory appears in this display .
[ i] Tips
• Fuel consumptions (average and current), range and speed are
displayed in metr ic units on Canadian models.
• All stored values will be lost if the vehicle battery is
disconnected .•