2009 AUDI S8 Owners Manual

button, you can bring up a driver message which explains
the malfunction in more detail.
Stop vehicle and check brake fluid level
-Pull off the road .
- Stop the vehicle.
- Turn off the engine.
- Check the brake fluid level=>
page 319.
- Contact your nearest authorized repair facility if neces-
sary.
Brake fault ! Drive carefully to nearest workshop
- Drive carefully to the nearest authorized repair facility
and have the malfunction corrected =>
&.
Parking brake ! Please contact workshop
- If the warning/indicator light flashes when the vehicle is
stationary or after the ignition is turned on, check to see
if the parking brake can be released. Drive to an autho­
rized repair facility as soon as possible and have the
malfunction corrected. If the parking brake cannot be
released, contact your nearest authorized repair facility.
- If the warning/indicator light flashes while you are
driving, it is possible that the traction control or the
emergency brake has malfunctioned. It is possible that
the parking brake cannot be applied. It is also possible
that the parking brake cannot be released after it has
been applied. Drive to an authorized Audi dealer to have
the malfunction corrected.
Controls and equip ­
ment
Driver information display
If the ABS, ESP and the brake force distribution fail , the ABS
warning/indicator light and the ESP warning/indicator light come
on along with the brake system malfunction warning/indicator light
=>& .
& WARNING
• Always observe the warnings in=> page 301, "Engine compart­
ment", before opening the hood and checking the brake fluid.
• Driving with low brake fluid is
a safety hazard. Stop the car and
get professional assistance .
• USA models: If the BRAKE warning light, the. warning light and
the "'L') 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 <, the warning
light and the ABS warning light
G 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
applications. •
Engine cooling system malfunction -L
A malfunction in the engine cooling system must be
repaired as soon as possible.
When the -L symbol in the display blinks, then either the
engine coolant
temperature is too high, or the coolant level
is too low. An additional driver message can also be
displayed by pressing the [CHECK] button:
Switch off engine and check coolant level
I • •

Driver information display
-Pull off the road.
- Stop the veh icle.
- Turn off the engine.
- Check coolant level~
page 317.
-Add coolant if necessary ~ page 318.
-Continue dr iving only after the eng ine coolant
warning/ indicator light goes out .
- Contact your authorized Audi dealer for assistance if
necessary .
If the engine coolant le ve l is correct, then the radiator fan may be
the cause of the malfunction.
If the generator warning/indicator light should also illuminate
~ page 18, then the fan belt may be damaged.
& WARNING
• If your vehicle should break down for mechanical or other
reasons, park at a safe distance from moving traffic, turn off the
engine and turn on the hazard warning lights
~ page 73, "Emer­
gency flasher
A".
• Never open the hood if you see or hear steam or coolant
escaping from the engine compartment -you risk being scalded.
Wait until you can no longer see or hear steam or coolant escaping.
• The engine compartment of any vehicle is a dangerous area.
Before you perform any work in the engine compartment, turn of
the engine and allow it to cool. Follow the warning stickers
~ page 301, "Engine compartment".
0 Note
Do not continue driving if the -~- symbol illuminates. There is a
malfunction in the engine cooling system -you could damage your
engine. •
Engine oil pressure malfunction "t=:?:
The red engine oil pressure warning symbol requires
immediate service or repair. Driving with a low -oil -pres ­
sure indication is likely to inflict severe damage to the
engine.
If the ~ symbol appears in the display and blinks, the oil
pressure is too low. An additional driver message can also
be displayed by pressing the
I CHECK] button:
Switch off engine and check oil level
Immediate actions
- Pull off the road.
- Stop the vehicle.
- Turn off the eng ine.
- Check the engine oil level
with the dipstick~ page 313.
Dipstick readings checks too low
- Top off oil to the proper level~ page 314.
-Make sure that the oil pressure warning symbol~
appears no longer in the display before you start driving
again. .,,,

Dipstick reading checks OK
-If the oil pressure warning symbol "t=:7: starts flashing
again even though the engine oil level checks OK on the
dipstick,
do not continue driving and do not let the
engine run in idle.
Instead, contact your authorized Audi
dealer for assistance.
[ i] Tips
• The engine oil pressure symbol ~ is not an indicator for a low
engine oil level. Do not rely on it . Instead, check the oil level in your
engine at regular intervals, preferably each time you refuel, and
always before going on a long trip .
• The yellow oil level warning indication .: requires oil refill or
workshop service without delay. Do not wait until the red oil pres­
sure warning
~ starts to flash before you respond to the low oil
level warning . By then, your engine may already have suffered
serious damage. •
Steering malfunction i
If there is a malfunction in the electronic steering column
lock, the steering cannot be unlocked.
If the i symbol in the display blinks, there is a malfunction
in the electronic steering column lock. An additional driver
message can also be displayed by pressing the [
CHECK]
button:
Do not drive vehicle: Steering defective
- Contact your nearest authorized repair facility.
- Do
not tow your vehicle.
Controls and equip ­
ment
Driver information display
& WARNING
Your vehicle must not be towed in the event of a malfunction in the
electronic steering column lock because it cannot be steered due
to the locked steering. If it is towed with the steering locked, there
is the risk of an accident. •
Ignition lock malfunction ~
A malfunction in the ignition lock must be repaired imme­
diately.
If the -Pe symbol in the display blinks, there is a malfunction
in the electronic ignition lock. An additional driver message
can also be displayed by pressing the [
CHECK] button:
Ignition lock defective. Contact workshop !
- Do not turn the engine off.
-Drive immediately to an authorized Audi dealer to have
the malfunction corrected.
If there is a malfunction in the electronic ignition lock, the ignition
cannot be turned off. Drive immediately to an authorized Audi
dealer to have the cause of the malfunction corrected.
If your vehicle has a Conv eni enc e key *, th e n you should not use the
I STOP I button to shut off the engine. You will not be able to start the
engine again once th e ignition is switched off. •
I • •

Driver information display
Yellow symbols
A yellow symbol means WARNING.
Fig. 18 Display: low
fuel level warning
(priority 2)
Yellow symbols indicate a priority 2 malfunction -Warning!
When a y ellow warning symbol appears,
one warn ing ton e sounds.
A driver message appears as well to explain the malfunction in more
detail. The dr iver warning goes out after about
5 s e conds, bu t it can
be brought up again at any time by pressing the [
CHECK I button .
Check the displayed function as soon as possible . If
more than one
priority 2 malfunction is detected, all symbols will appear one after
the other for about
2 seconds .
Yellow symbols mean :
Worn brake pads
Electromechanical
parking brake
=> page 34
=> page 136
Check engine oil level => page 35
=> page 313
Engine oil sensor malfunction => page 35
Low fuel level => page 35
Windshield washer fluid => page 35
level low
Battery voltage
=> page 36
-
II Battery in remote control key => page 48
Convenience key * => page 133
Key not in vehicle
USA models: => page26
Defect ive brake light
Canada models: => page26
Defective brake light
Defective light bulb
=> page26
Engine speed limitation* => page 35
-
IIAdaptive Light* defective => page 36
Dynamic headlight range => page 36
control defective
Defect ive light -/rain sensor
=> page 36
Tire pressure monitoring sys-=> page 43
tern*
Loss of air pressure
-Tire pressure monitoring sys -=> page 46
tern*
ll system not ava ilable
•
Worn brake pads r
Brake pads!

If the warning light illuminates, immediate ly contact your autho ­
ri zed Aud i dealer or qualified workshop to have a ll brake pads
inspected . On USA models the warning light
.1 comes on together
with the warni ng light
BRA KE. Both set s of brake pads on an axle must
a lways be replaced at the same time .
& WARNING
Driving with bad brakes can cau se a colli sion and serious personal
injury.
• If the warning light and the warning light
BRAKE11 with the
mes sage Brake pads ! come s on in the in strument clu ster display ,
immediately conta ct your authorized Audi dealer or qualified
workshop to have all brake pads checked or replaced if nece ssary .•
Checking the engine oil level ~
.... ,. Plea se check oil le vel
When the symbo l illuminates, chec k the eng ine oi l leve l as so on as
possible=>
page 313 . Add oil if necessary=> page 374 . •
Engine oil sensor defective
~ Oil level ! sen sor defective
If the symbo l il luminates, contact your authorized Audi dea ler and
have the oi l sensor inspecte d. Until you have this done, check the o il
level each time you refuel just to be on the safe side=>
page 373. •
11 BRAK E: USA mode ls on ly
Controls and equip ­
ment
Driv er information display
Ap plies to vehic les: wit h eng ine s peed limita tio n
Engine speed limitation
!-1 Engine speed maximum XXXX RPM
The _-symbo l illuminates when there is an engine control malfunc ­
t io n. The indica to r light "in the instrument clus te r also illumi ­
nates . The engine speed is limited to the speed displayed in the
driver info rmation system . Keep in mind that the engine speed wil l
not e xceed the va lue d isplayed in the dr ive r info rm ation system, fo r
examp le when downshifting.
Please go to an au thorized Audi deale r or other qua lif ied workshop
to have the ma lfunction repaired .•
Fuel supply too low l
A Please refuel
When the symb ol i llu minates, this means there are abo ut 2.4
gallons
(9 l itres) of fuel left in the fuel tank . Time to refuel.
=>
page 304 .
If the symbo l lig hts up, eve n w hen there is ample fuel in th e tank,
and the text
Tank system malfunction ! Conta ct workshop appears
i n the d isp lay, t here is a fault in th e sys tem. C ontac t a q ua lified work ­
shop to have the fault rectified .•
' Windshield washer fluid level too low ~
Plea se top up washe r fluid
If t he symbo l illum inates, add windshie ld washe r fluid to the washe r
system and a lso to the headlight washer system=>
page 325. •
I • •

Driver information display
Battery voltage ~
If the battery's state of charge is not in the optimal range, the
symbol is shown in the display and the driver message
Low battery
charge: battery will be charged while driving
appears.
While this driver notification is displayed, you have to be prepared
for limited starting capability.
Driver message appears and goes out again
If this driver message appears after the ignition is turned on or
while driving and it goes out again after a while, the battery has
been adequately recharged.
Driver message appears and does not go out again
If this driver notification appears after the ignition is turned on or
while driving and does not go out again, the battery's state of
charge is not in the optimal range. Starting capability is restricted.
Have the battery checked at a dealership as soon as possible.•
Applies to vehicles: w ith Conven ience key
Key not in vehicle
Key not in vehicle
This message appears together with the symbol when the
remote control key is removed from the vehicle while the engine is
running. This is to remind you that you should not continue your trip
without your key.
If the remote control key is no longer in the vehicle, you will not be
able to start the engine again after you have switched off the igni ­
tion. In addition to this, you will not be able to lock the vehicle from
the outside. •
Applies to vehicles: with Adap tive ligh t
Adaptive Light defective== ~
.. c; Adaptive light defective
When this symbol L illuminates, it means that Adaptive Light is
defective. Go to an authorized dealership to have the headlights or
the control unit for the Adaptive Light repaired. •
Headlight range control defective '.:1
T<. Headlight range control defective !
If the symbol illuminates, the dynamic headlight range control is no
longe r working properly. Have the system checked and repaired at
your Audi dealer. •
Defective light /rain sensor jf:>
.... Automatic headlights/automatic wipers defective
If the symbol illuminates, the light/rain sensor has failed. For safety
reasons the low beams are turned on permanently with the switch
in
AUTO. However , you can continue to turn the lights on and off
using the light switch. If the rain sensor fails, the functions of the
windshield wiper lever will still work. Contact your authorized Audi
dealer as soon as possible to have the problem corrected. •

Speed warning system
Overview
The speed warning system helps you to keep your driving
speed below a set speed limit.
The speed warning system warns the driver if he exceeds a previ ­
ously stored maximum speed . A warning tone wi ll sound as soon as
the vehicle speed exceeds the set speed by about 3 mph (3 km/h) . At
the same time, a warning symbol appears in the display.
The speed warning system has
t wo w arning th reshold s that func­
tion independently of each other and that have somewhat different
purposes:
S p ee d wa rning 1 B (U SA mod els)/ 8 (Ca na d a mo dels)
You can use speed warning 1 to set the maximum speed while you
are driving. This setting will remain in effect until you turn off the
ignition, assuming that you have not changed or reset the setting.
The speed warning symbol
8 (USA models)/ 8 (Canada models) in
the warning 1 disp lay appears when you exceed the maximum
speed. It goes out when the speed falls be low the stored maximum
speed.
The speed warning symbol will also go out if the speed
exceeds the
stored maximum speed by more than about 25 mph (40 km/h) for at
least 10 seconds. However, this does no t reset the stored maximum
speed .
Setting speed warning 1
=> page 37.
S pee d war ning 2
8. (U SA models)/ 8. (C an ad a m od els)
Storing warning 2 is recommended if you always want to be
reminded of a certain speed, for example when you are traveling in
a country that has a general maximum speed limit, or if you do not
want to exceed a specified speed for winter tires.
Contro ls and eq uip­
ment
Dri ver inf orm atio n di spl ay
The speed warning 2 symbol, 8, (USA models)/ 8, (Canada models)
appears in the disp lay when you exceed the stored speed limit.
Unlike warning 1, it wil l not go out until the vehicle speed drops
below the s tored speed limit .
Setting speed warning 2
=> page 38.
[ i ] Tips
Even though your vehicle is equipped with a speed warning system,
you should sti ll 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.
[C HECK •~ F
ig . 19 C HECK button
in th e inst ru m ent
c luster
Storing the maximum speed
- Drive at t he desired maxim um speed.
- Briefly press the
[CHECK) but to n => fig . 19.
Resetting the m aximum sp eed
- 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.
Vehicle care I I irechnical data

Driver informati on displ ay
The speed warning symbol 8 (USA models)/ 0 (Canada models) will
appear briefly in the display when you release the button to indicate
that the maximum speed has been stored successful ly .
The maximum speed remains stored until it is changed by pressing
t he 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/.
t _i•,,( '1
Instrument cluster
• Speed warning
I .

12:QQAM
i
'
@
\_:'.' '' :, ) ..
Fig. 20 MMI d ispl ay :
Set w arning thr esho ld
2
Switching sp eed warning on and off
- Press the (CARI fun ction button .
- Select
Systems in the CA R menu.
- Select
Instrument cluster . The Instrument cluster menu
appears=> fig. 20 .
- Select Speed warn ing
On to switc h on the warning
thresho ld or
Off to tur n off the warning th reshold.
Setting and adjusting the warning thr eshold
- Press the (CARI function butto n.
- Select
Systems in the CAR menu. -
Selec t
Instrument clu ster. T he In strument clu ster menu
appears.
- Selec t th e seco nd item in the
Speed warning menu. The
submenu
Speed threshold appears=> fig. 20.
- Set the warning th reshold 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.
F ig . 2 1 Trip co m pute r
d is pl ay : Ave ra ge fuel
mil eag e
The fol lowing driving information is continuously evaluated by the
trip computer and can be displayed sequentially in the instrument
cluster display .
Fuel range
The estimated cruising range in miles (km) appears in the display .
T his tells you how far your vehic le will be ab le to travel on the _.,