2009 AUDI S8 fuel

Safety first ........ ... ... .. .
Driving Safely ................. .
General notes ... .............. .
Proper occupant seating positions
Driver and passenger s ide footwell
Peda l area ..... ..... ....... ... .
Stowing luggage .............. .
Reporting Safety Defects ..... .. .
Safety belts .............. ... .. .
Genera l notes ....... .......... .
Why safety be lts? .. ...... ..... .
Safety belts .. .. .. .... ... .. ... .
Safety belt pretensioners ...... .
Airbag system ..... ... ... .. ... .
Important thing s to know .. •....
Front airbags .. ... ..... ..... .. .
Monitoring the Advanced Airbag
System ..... ... .. ....... .. ... .
Knee airbags ................. .
Side a irbags .... ..... ........ . .
Side curtain airbags ........... . 199
200
200
202
206
206 207
209
211
211
212
215
218
220
220
224
231
236
239
242
Child Safety . . . . . . . . . . . . . . . . . . . . 245
Impor tant things to know . . . . . . . 245
Child safety seats . . . . . . . . . . . . . . 250
Insta lling a ch ild safety seat . . . . . 255
Addit ional Information . . . . . . . . . . 258
Lower anchorages and tether for
children (LATCH) . . . . . . . . . . . . . . . . 260
Vehicle operation . . . . . . . . 269
Intelligent technology . . . . . . . . . . 270
Notice about data recorded by
vehicle control modules . . . . . . . . .
270
Elect ronic Stabilizat ion Program
(ESP) . . . . . . . . . . . . . . . . . . . . . . . . . .
270
Braking . . . . . . . . . . . . . . . . . . . . . . . . 272
Servotronic® -advanced power
steer ing system . . . . . . . . . . . . . . . . 275
Driv ing w it h your quattro® . . . . . . 275
Energy management . . . . . . . . . . . . 276
Driving and environment . . . . . . . 279
The first 1,000 mi les ( 1,500 km) and
afterwards . . . . . . . . . . . . . . . . . . . . .
279
Cata lytic converter . . . . . . . . . . . . . 280
Avoid damaging the vehicle . . . . . 281
Operate your vehicle economically
and minimize pollution . . . . . . . . . .
281
Trai ler towing . . . . . . . . . . . . . . . . . . 284
Driv ing w ith a trailer . . . . . . . . . . . . 284
Trai ler towing tips . . . . . . . . . • . . . . 286
Table of contents
Vehicle care ....... ... ... ... 289
Cleaning and protection ........ 290
General information . . . . . . . . . . . . . 290
Care of exte rior . . . . . . . . . . . . . . . . . 290
Care of inte rior . . . . . . . . . . . . . . . . . 297
Fuel supply and filling your fuel
tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
Gasoline . . . . . . . . • . . . . • . . . . . . . . . 303
Fuel tank . . . . . . . . . . . . . . . . . . . . . . . 304
Checking and filling . . . . . . . . . . . . 308
Engine hood . . . . . . . . . . . . . . . . . . . 308
Engine compartment . . . . . . . . . . . . 3 10
Engine oil . . . . . . . . . . . . . . . . . . . . . . 311
Eng ine cooling system . . . . . . . . . . 3 16
Brake fluid . . . . . . . . . . . . . • . . . . . . . 319
Battery . . . . . . . . . . . . . . . . . . . . . . . . 320
W indshield/headlight washer
container . . . . . . . . . . . . . . . . . . . . . . 325
Tires and wheels . . . . . . . . . . . . . . . 326
Tires ... ... ... .... .. ... ... .... .. 326
Vehicle care I I irechnical data

Instruments and controls
General illustration
G) Power window switches .. ...... .... ... .. ....... .
0 Door handle
G) Pow er locking switches ... .... .... .... ... ....... .
© Adjuster control for outside mirrors ............. . .
© Light switch .... .... ....... ... ... .. .... .. ..... .
© Control lever for:
- Cruise control .... .... ... .... .... .... ... .... .
- Adaptive Cruise Control .. ... ....... .......... .
0 Air outlets ...... .............................. .
@ Control lever for:
- Turn signal and high beam ....... ... .... ..... .
- Lane assist .. .... ..................... ... ... .
® Multifunction steering wheel with :
- Horn
- Driver's airbag .. ...... ...... ....... ...... ... .
- Shift buttons ........... .... ... .. .... .... ... .
Button for steering wheel heating ..... .. .. .... .
@ Instrument cluster .................... .... ..... .
@ Swi tches for
- Windshield wip er/ washer ............. ... .. ... .
- Trip computer ..... ... ... .... .... ... ... ... .. .
@ Steering lock/ignition /starter switch
@ Buttons for :
- Advanced Parking System .. .... .... .... .... .. .
- Side assist ..... .. .. ... ..... .... ... .. .... ... .
- Power sunshade
@ MMI Display
Controls and equip ­
ment
61
53
84
69
137
139
122 73
153
224 171
119 12
80 38
129
173
156
78
Instruments and controls
@ Buttons/Indicator light for:
- Electronic Stabilization Program (ESP) 270
- PASSENGER AIR BAG OFF
- Emergency flashers . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
@ Storage tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
@ Glove compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
@ Front passenger's airbag . . . . . . . . . . . . . . . . . . . . . . . . 224
@) Shift lever for automatic transmission . . . . . . . . . . . . . 166
@ Climate controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
@ Rear window d efogger switch . . . . . . . . . . . . . . . . . . . . 124
@ Ashtray with cigarette lighter . . . . . . . . . . . . . . . . . . . . . 106
@ ISTART ]-~STOP ~button . . . . . . . . . . . . . . . . . . . . . . . . . 131
@ MMI Terminal
@ Storage w ith cup holder . . . . . . . . . . . . . . . . . . . . . . . . . 105
@ Electromechanical parking brake . . . . . . . . . . . . . . . . . . 134
@ Data Link Connector for On Board Diagnostics (OBD Ill 27
@ Engine hood release . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
@ Adjustable steering column . . . . . . . . . . . . . . . . . . . . . . 128
@) Memory buttons (driver's seat) . . . . . . . . . . . . . . . . . . . 94
@ Switch for
- unlocking the fuel filler door . . . . . . . . . . . . . . . . . . . 305
- unlocking the trunk lid 54
[ i ] Tips
Operation of the Multi Media Interface (MMI) is described in a sepa­
rate manual. •
I • •

Instruments and warning /indicator lights
Instruments and warning/indicator lights
Instruments
Instrument cluster and controls
The instrument cluster is your central source of informa­
tion.
F ig . 2 Overview of the instrume nt cluster
CD Coolant temperature gauge ..................... .
0 Tachometer with time and date display .. ......... .
G) Warning/indicator lights .. ... .... ... ... ...... .. .
© Driver information system ..... ... .... ...... .... .
© Speedome ter with odometer ..... .... ..... ... .. .
© Fuel gauge . ..... ..... ... ... ..... ..... .... ... . .
G) Reset button for trip odometer ........... ... .... .
12
13 , 13
16
24
14
14
14
© I CH ECK] button ............. ..... .... ... ...... .
® Ins trument cluster illumination . ......... ........ .
[ i ] Tips
15
15
The illumination for the instrument cluster lights up whenever you
switch on the ignition with the vehicle headlights off. As the
daylight fades, the instrument cluster illumination likewise dims
automatically and will go out complete ly when the outside light is
very low . Th is feature is meant to remind you to switch on the head­
lights when outside light conditions become poor. •
Engine coolant temperature gauge
The engine coolant gauge~ fig. 2 CD only works when the ignition
is on. To prevent damage to your engine, please note the following
important points:
Engine cold
As long as the needle remains at the left end of the gauge, the
engine still has not reached its operating temperature. Avoid high
engine speeds, heavy engine loads and heavy throttle applications.
Normal temperature
When the engine has reached its operating temperature, the needle
will move into the midd le of the gauge and remain there. If the
engine is working hard at high outside temperatures, the needle
may go furthe r to the right. This is no need to worry as long as the
J_ warning light in the instrument cluster does not illuminate.
Warning light in the instrument cluster -L
When the-•-warning light starts to flash, this can mean one of two
things: either the coo lant temperature is too high , or the coolant
level is too low~ page 31 . .,_

If the indicator goes all the way to the right side inside the coolant
temperature gauge, then the engine coolant temperature is too
high.
Pull off the road to safe location, turn off the engine and let it
cool down.
If the warning light comes on again after you have driven
a short distance, contact a qualified workshop.
& WARNING
• Always observe the warning in :::::, page 301, "Engine compart­
ment", before opening the hood and checking the engine coolant
level.
• Never open the engine hood if you see or hear steam, or if you
see engine coolant dripping from the engine compartment. You
could burn yourself. Let the engine cool off first so that you cannot
hear or see any steam or engine coolant.
0 Note
• Mounting additional lights or accessories in front of the air inlets
reduces the cooling effect of the radiator. At high outside tempera ­
tures or high engine load, the engine could overheat.
• The front spoiler has been designed to properly distribute the
cooling air when the vehicle is moving . If the spoiler is damaged,
this could reduce the cooling effect and the engine could then over­
heat. Ask your authorized Audi dealer for assistance. •
Tachometer (engine rev counter)
The tachometer indicates the engine RPM (revolutions per
minutes).
The tachometer 0:::::, page 12, fig . 2 is the left of the two large clock­
type displays.
The engine turns at a speed
1,000 times the single digit in the
display, e.g. if the needle is pointing at the "2" the engine is turning
at 2,000 RPM.
Controls and equip ­
ment
Instruments and warning/indicator lights
If engine RPM drops below 1,500, you should downshift to the next
lower gear. The red area at the end of the scale indicates maximum
permissible engine RPM after the break-in period. Before reaching
this area, move the selector lever to position "D (Drive)" or ease your
foot off the accelerator pedal.
0 Note
The tachometer needle should not move into the red range . If it
does, then only for a very short period of time. You could damage
your engine by driving at high RPM.
<£> For the sake of the environment
Upshifting early saves fuel and reduces engine noise .•
Digital clock with date display
Date and time of day can be set in MM/.
Fig . 3 Instrument
cluster with digital
clock
The date, time of day, and time and date format can be set in MMI.
You can find out more in the MMI manual. ..,.
I • •

Instruments and warning /indicator lights
[ i J Tips
• The digital 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
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 Instrument
c luster Odometer and
reset button
The odometer and trip odometer are located inside the speedom­
eter.
• USA models -Miles
• Canada models -Kilometers
You can switch the display from miles to kilometers and vice versa
via the MMI.
Lower odometer
The lower odometer shows the total number of miles (kilometers)
driven. Upper
odometer (trip odometer )
The upper odometer shows the total number of mil·es (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 miles (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 zero by pressing the Reset button
(0.0).
Malfunction 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
authori zed Audi dealer to have the prob lem corrected .
Immobilizer
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
SAFE 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
I 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 needle
reaches the reserve mark, the=>
page 35 symbol appears in the
instrument cluster display as well as the message
Please refuel. .,_

There is still approximately 2.4 gallons (9 liters) of fuel left. This
message is meant to remind you to
refuel.
(D Note
Never run the tank completely dry. An irregular supp ly of fuel can
cause engine misfiring and fuel could enter the exhaust system . The
cata lytic converter could then overheat and be damaged. •
[ CHECK] button
You can perform different functions with this button .
Fig. 5 CHECK button in
the instrument cluster
Th e [ CHECK] button performs the following functions:
Switching on the clock and odometer
With the ignition turned off, the odometer reading and the digital
clock with date display can be sw itched on for about 30 seconds by
pressing the
I C HE CK I button ~ fig. 5 .
Starting the Auto-Check sequence
The Auto -Check system ~ page 28 constantly monitors certain indi­
vidual functions and components of the vehicle when the ignition is
turned on and when the vehicle is moving.
With the ignition turned on, you can start the "Auto -Check
sequence" by pressing the !CHECK] button. You can perform an
Contro ls and eq uip­
ment
Instruments and warning /indicator lights
Auto-Check sequence when the vehicle is stationary and the ignition
is turned on or when the vehicle is moving not faster than 3 mph
(5 km/h).
Calling up the driver information
A yellow or red symbol appears in the instrument cluster disp lay,
usually with a driver message. The driver message display disap­
pears after about 5 seconds . The driver message can be displayed
again by briefly pressing the !CHECK ] button .
Setting the speed warning
By pressing the [ CHECKJ but ton briefly , you can set threshold 1 of
the speed warning while you are driving~
page 37. By maintaining
pressure on the [ CHECK] button, you delete the warning
threshold. •
Instrument cluster illumination
The basic brightness of the illumination for the instru­
ments, the center console and the display can be
adjusted.
Fig . 6 Instr ument
c luster illumination
Press the"+" button to increase the brightness during
the hours of darkness.
~
Vehicle care I I irechnical data

Instruments and warning/indicator lights
Ap plies to vehi cles : wi th n re pressu re monitor in g system
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 illum inates when you switch on the
ign ition and must go out after the engine has started .
If the
I symbo l appears, pressure is too low in at least one tire.
For more information
~ page 43. •
Malfunction Indicator Lamp (MIL) ....;
The Malfunction Indicator Lamp (MIU is part of the On-Board Diag ­
nostic (OBD II) system. The symbol lights up when the ignition is
turned on and will turn off after the engine has started and has sett led at a constant id le speed. This indicates that the MIL is
work ing proper ly .
The warning light illuminates when there is a malfunction in the
engine electronic system. Contact your authorized Audi dealer and
have the malfunction corrected .
An improperly closed fuel filler cap may also cause the MIL light to
illuminate
~ page 305.
For more information ~ page 27. •
Safety belts 4i-
This warning/indicator light reminds you to put on your
safety belt.
The 4,_ warning/indicator light illuminates when the ignition is
switched on to remind the driver and any front passenger to put on
the safety belt. Additionally, an acoustic warning (gong) will also
sound. For more
Information~
page 211, "Safety belt warning light t". •
Adaptive Air Suspension
The warning/indicator light illuminates, when the jacking mode
has been activated ~ page 191. 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 illuminates steadily, there is a
system fault in the Adaptive Air Suspension . A system fault can
r esult in lim ited ride comfort and
low ground clearance . The fault
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 flashing warning/indicator light points to an extreme
High level. A very pronounced lifting of the vehicle (extreme High
level) can resu lt, for examp le, when a heavy load is removed from
the vehic le . As soon as the level has returned to normal, the
warning/indicator light stops flashing , and you can drive away .
• If the warning/indicator light flashes in conjunction with the~
warning/indicator light, you should not drive off immediately in
order to prevent damage to the underbody . The two warning/indi­
cator lights flashing together points to an extreme Low level. A very
pronounced lowering of the vehicle (extreme Low level) can result,
for example , from a heavy load. As soon as the level has returned to
normal, the warning/indicator lights stop flashing, and you can
drive away .
0 Note
If the warning/indicator light flashes in conjunction with the~
warning/indicator light, you should not drive the vehicle because
l ow -lying vehicle parts can bottom out as you drive over uneven
ground and be damaged as a result.•

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 Dis play: 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
t ive l ight 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 wel l as a pictogram in which
th e defective light bulb is shown =:> fig. 13 In the case of certain bulb
failures (e.g. failure of the rear fog lamp), an additiona l 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 signal (front or rear), a headlight,
the backup light, a fog light or a rear fog light has failed. The 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. .,_