2009 AUDI S8 engine

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T he selector lever must be in Nor P. If one of the driving positions
is engaged a safety switch w ill preven t the eng ine from being
started. See also=>
page 130.
Before you move the selector lever from the P position, you must
a lways apply the brake pedal before and while depressing the
button in the hand le of the se lector lever .
_& WARNING
• Unintended v ehicle movement c an cause serious injury .
- When the selector lever i s in a driving po sition , the vehicle
may creep, even at idle speed . Therefore do not release the
parking brake or foot brake until you are ready to move ,
be cau se power is tran smitted to the wheel s as soon as a
driving po sition i s engaged.
- Do not accelerate while selecting a driving pos ition . At this
time the engine must be at idle speed so that undue stress is
not placed on the clut che s in the t ransmission .
-Remember : - even when stopped briefly with the automatic
transmi ssion in "D" or "R ", engine po wer is being tr ansmitted
to the wheels. Your vehicle could "creep " forward or ba ckward .
When stopped , keep the brake pedal fully depres sed and u se
the parking brake if ne ces sary to keep the vehicle from rolling.
• If the selecto r leve r is unintentionally mo ved into N whi le you
are dr iving, take your foot off the accelerator pedal and wait for
the eng ine to return to idle speed before sele cting a dr iving posi ­
tion .
• Never shift into "R " or "P " when the ve hicle is in motion .
• Never get out of the driver 's seat when the eng ine i s running .
• If you must get out of the vehicle , move the selector lever
s ecurely into the P po sition and apply the park ing brake firmly.
• If the engine must remain running , never have any driving po si­
tion engaged when che cking under the hood . Make sure the
selector lever has securely engaged and is locked in "P" with the
p ark ing br ake firmly set =>
page 301 , "E n gine compart ment ".
Controls and equip ­
ment
& W ARNING (continued )
Otherwise , any in crease in engine speed may set the vehi cle in
motion , even with the parking brake applied. •
Selector lever positions
This section describes the selector lever positi ons and
drivi ng ra nges .
Fig . 18 6 D ispl ay in the
in strument cluste r:
s elec tor lev er in po si­
tion D
The selector leve r posi tion engaged appears next to the selec tor
lever as wel l as in the instrument c luster display . A lso, the current
gear engaged is sh own in positi ons D and S .
P -Park
In this selector leve r pos it ion the transmission is mechanica lly
locked . Engage
P on ly when the vehicle is completely stopped=> &
in "Driving the automatic transm ission" on page 166 .
To shift in or out of position P, you must first press and hold the
brake peda l
and then press the re lease bu tton in t he se lecto r leve r
handle while moving the selector lever to or from
P . You can shift
out of this position only with the ignit ion on.
R -Re ver se
The transmission wi ll au tomatically select the lowest gear ratio
when you shift into reverse .
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Select R only when the vehicle is at a full stop and the engine is
running at idle speed=>
& in "Driving the automatic transmission"
on
page 166.
Before you move the selector lever to R, press both the button in the
handle of the selector lever
and the brake pedal at the same time.
When the ignition is on, the backup lights illuminate when the
selector lever is moved into
R.
N -Neutral
The transmission is in neutral in this position. Shift to this position
for standing with the brakes applied =>
page 168 .
When the vehicle is stationary or at speeds below 3 mph (5 km/h),
you must always apply the footbrake before and while moving the
lever out of
N.
D -Normal position for driving forward
Position Dis for normal city and highway driving. It ranges from zero
to top speed and all six gears shift automatically, depending on
engine load, driving speed and automatically selected shift
programs.
When the vehicle is stationary or at speeds below 3 mph (5 km/h),
you must always apply the foot brake before and while moving the
lever to
D out of N.
In certain circumstances it may be advantageous to temporarily
switch to the manual shift program to manually select gear ratios to
match specific driving conditions=>
page 170.
S -Sport position
Select this position for sportier performance. In this position, the
transmission will not upshift as soon, allowing the vehicle to use the increased power available at higher engine speeds to achieve live ­
lier acceleration.
When the vehicle is stationary or at speeds below 3 mph (5 km/h),
you must always apply the foot brake before and while moving the lever to
S out of N.
& WARNING
Read and follow all WARNINGS => & in "Driving the automatic
transmission" on
page 166.
0 Note
Coasting downhill with the transmission in N and the engine not
running will result in damage to the automatic transmission and
possibly the catalytic converter. •
Automatic Shift Lock (ASL)
Automatic shift lock prevents you from accidentally
shifting into a forward gear or into reverse, thus causing the vehicle to move unintentionally.
Fig. 187 Shift gate
selector lever lock
positions and interlock
button highl ighted
The selector lever lock is released as follows:
- Turn the ignition on.
Step on the brake pedal.
At the same time press and hold
the lock button on the side of the gear selector knob
=> fig. 187 with your thumb until you have moved the
selector lever to the desired position.
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Autom ati c selec to r l eve r lock
The se lector lever is locked in the P and N positions when the igni ­
tion is turned on. To move the lever from these positions the driver
must depress the brake pedal. As a reminder to the driver, the
follow ing warning appears in the instrument cluster disp lay when
the selector is in
P and N:
When stationary app ly foot brake while s electing gear
A time delay e lement prevents the selector lever from locking when
it is moved through the
N position (going from R to Dl. The locking
e lement will lock the selector lever if the lever is left in N (Neutral)
for more than approximately 1 second, without the brake peda l
being pressed.
At speeds above about 3 mph (5 km/h) the Automatic Shift Lock is
automatically deactivated in the
N posi tion .
Interl ock button
The lock button on the selector lever prevents the lever from being
accidentally shifted into certain positions. Pressing this button
deactivates the selector leve r lock. Dependi ng on the direction of
the shift, the selector lever locks at different positions. The positions
are highligh ted in the illus trati on =>
page 168, fig . 187.
Igniti on k ey saf ety in te rlo ck
The key canno t be removed from the ignition un less the selector
lever is in the
P park position. When the ignition key is removed, the
selector lever wil l be l ocked in the
P posi tion .•
Kick -down
T he kick-down feature allows the vehicle to genera te
maximum accelera tion.
When you press the acce lerator pedal beyond the resistance point
that is reached at ful l throttle, the transmission wi ll select a lower
gear ratio based on vehic le speed and engine RPM . The engine RPM
wil l be control led to produce maximum vehic le acceleration as long
Controls and equip ­
ment
as you continue to press the acce lerator pedal beyond this resis ­
t ance poin t.
& WARNING
Be careful when u sing the ki ck -down feature on slippery road s.
Rapid acceleration ma y cause the vehicle to skid . •
Dynamic shift program (DSP)
T he aut omatic tr ans mission is electro nically c ontrolle d.
The transmission is se lf adapting and will automaticall y select the
b est shi ft program su ited to the driving conditio ns and driving style.
The transmission will select one of the
e conomy programs when
you drive at a s teady speed or a g radually changing speed without
heavy acceleration. This achieves optimum fuel efficiency, with ear ly
upshifting and delayed downshifting .
The trans mission will au tomatically select the
sporty shift progra ms
when you drive at higher speeds, or with heavy acce leration and
frequent ly cha nging speeds . Upshifts ar e delayed t o make f ull use
of engine power . Downshifting takes place at higher engine speeds
than in t he ec onomy p rograms .
The selection of the most su itable shift program is a continuous,
automatic process . The driver can a lso make the transmission
sw itch to a sporty progra m by
quickly pressing down the gas peda l.
This causes the transmission to shift down to a lower gear to
achiev e rapid acc elerati on, e.g . fo r q uickly pass ing another vehicle .
You do not need to press the gas pedal into the kick-down range.
After the transm ission has upshifted, the original progra m is
selected according to your driving sty le.
An additiona l shift program allows the automatic transmission to
select the proper gear fo r uph ill and downhi ll gradients.
This prevents the transmission from upshifting and downshifting unnecessa rily o n hills . The transm ission wi ll shift down to a lower _,.
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• ..__A_ u_ t _o_ m_ a_ t_ i_ c _ t_r _a _n_ s_ m_ is_ s_i o _ n ________________________________________________ _
gear when the driver presses the brake pedal on a downhill
gradient. This makes use of the braking effect of the engine without
the need to shift down manually.•
Manual shift program
Using the manual shift program you can manually select
gears.
Fi g. 18 8 Ce nte r
co nso le: s hiftin g the
t ip tr on ic® ma nually
F ig . 18 9 Disp lay:
ma nua l shi ft prog ra m ,
selecte d gear high­
l ig hte d
Swit ching to manual shift program
With the selecto r lever in D, push the lever to the rig ht.
T he d isplay will s how
6 5 4 3 2 1 as soon as the selector
lever is moved. The gear you se lect will also be high­
lighted => fig . 189.
To upshift
Push the selector lever forward to the plus position 0
=> fig. 188.
To downshift
- Push the lever to the minus position Q.
When accelerating, the transmission will automatically shift into
gears 1 , 2, 3, 4 or 5 before the engine reaches its maximum RPM .
If you apply a light throttle when accelerating, tiptronic® will auto ­
matically shift from 1st to 2nd gear to save fuel. If you apply a heavy
throttle, the transmission will stay in 1st gear until near maximum
RPM is reached, or unti l the driver shifts into 2nd gear .
If you take your foot off the accelerator peda l when driving down a
steep incline, tiptronic® will downshift from the selected gear into
the next lower gear until it reaches 1st gear, based on road speed
and engine RPM. Automatic downshifting is interrupted as soon as
you apply the thrott le again .
[ i ] Tips
• When you shi ft into the next lower gear, the transmission will
downshift only when there is no possibi lity of over -revving the
engine.
• When the kickdown comes on, the transmission wil l shift down
to a lower gear, depending on vehicle and eng ine speeds.
• Tiptronic® is inoperative when the transmission is in the fai l-safe
mode. •

Automatic transmi ssio n -
------------------'
Applies to vehi cles : wi th tip troni c-st eerin g wh eel
Steering wheel with tiptronic ®
The shift buttons on the steering wheel allow the driver to
shift gears manually.
F ig . 190 Steering
whee l: S hift butt ons
- To downshift, touch the button on the left Q .
- To upshift , touch the button on t he right G) .
The shift buttons are activated when the selector lever is in D, Sor
in the manual shift program (tip tronic) .
Of course, you can continue to use the manual shift program with
the selector lever on the center console .•
Fail-safe mode
If tiptronic® suffers a malfunction, the fail-safe mode
maintains minimum driveability.
In the event of particular system malfunctions, the automatic trans­
mission switches to the fail -safe mode. This is s ignalled by all the
segments in the display illuminating or going out .
You can continue to move the selector lever to all positions. The manual shift program (tiptronic) is switched off in the fail-safe
mode .
Contro ls and eq uip­
ment
In selector lever positions D and Sand in the manual shift program ,
the transmission remains in 3rd gear if 1st, 2nd or 3rd gear was engaged previous ly. The transmission remains in 5th gear, if 4th, 5th
or 6th gear was engaged previously .
The next time you drive off or start the engine, 3rd gear is engaged .
You can continue to use reverse gear . But the electronic lockout for
reverse gear is turned off .
0 Note
If the transmission switches to fail -safe mode, you should take the
vehicle to an au thori zed Audi dea lership as soon as possib le to have
t he condition corrected .•
Emergency release for selector lever
If the vehicle's power supply fails, the selector lever can
be released in an emergency.
Fig . 19 1 Rem ove th e
as htray i nser t
~
Vehicle care I I Technical data

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Chassis Controls
Four different driving modes can be set by the driver.
The automatic control processes are speed -and time -dependent.
For example, it is not possib le to raise the suspension to the lift
mode above certain speeds .
When a speed of about 75 mph ( 120 km/h) is exceeded for more than
30 seconds, the vehicle is automatically lowered approximately 1
inch (25 mm) to a level suitable for highway speeds, except in the
standard mode . Road holding is optim ized as a result of the lower
center of gravity and fue l consumption is reduced as a result of
reduced wind resistance .
Level adjustment
lift
automatic
dynamic
a utomati c Ground
clear ance
about 5 .7 inches (145 mm)
a bout 4.7 inches ( 120 mm)
about 4 .7 inches (120 mm)
about 3 .9 inches (100 mm)
Select the automatic mode if you prefer a suspension setting
e m phasizing comfort. Damping characteristics emphasizing
comfort are selected in this mode.
• Lower ing : When a speed of about 75 mph (120 km/h) is exceeded
for more than 30 seconds, the vehicle is automatically lowered by about 1 inch (25 mm) .
• Rais ing : The vehicle is automatically raised again if the speed
falls be low about 44 mph (70 km/h) for a period of 120 seconds. The
vehicle is raised immediately when speed falls below about 22 mph (35 km/h) .
dynami c
Select the sport mode if you prefer a sporty suspension setting. In
this mode, the vehic le is lowered whi le it is still stationary and
Controls and equip ­
ment
sporty damping characteristics are selected. The warning light ~
in the instrument cluster will come on for a few seconds just to
remind you of the reduced ground clearance .
I f you switch off the engine while the vehicle is in the dynamic mode
and then switch on the ignition once again, the~ warning light
wi ll also come on again for a few seconds.
• Lowering : When a speed of abou t 75 mph (120 km/h) is exceeded
for more than 30 seconds, the vehicle is automatically lowered by an addi tional 0 .2 in (5 mml.
• Raising : The vehicle is automatically raised again if the speed
falls bel ow about 44 mph (70 km/h) for a period o f 120 seconds . The
vehic le is raised immediately when speed falls below about 22 mph
(35 km/h).
s ta nd ard
Select the standard mode if you desire a suspension setting with a
special emphasis on comfort . In the standard mode there is
no
lowering o f the suspension. Even at high speeds, the veh icle stays
at the same level. Damping characteristics with a decided emphasis
on comfort are selected in this mode .
lift
Select the lift mode when you have to travel over poo r sections of
road (e .g . trai ls). In the lift mode, the vehic le is raised by 1 inch (25
mm) compared to norma l leve l while it is still stationary and
damping characteristics are adjusted to emphasize comfort.
The lift mode can be act ivated only at speeds be low 50 mph (80
km/h). When a speed of about 62 mph (100 km/h) is exceeded, the
system automatically leaves lift mode and the mode set previously
(standard, automa tic, dynamic) is activated again. •
I • •

• .___H_ o_ m _ e _L_i _ n _k _® ____________________________________________________ _
Homelink®
Universal remote control
Applies to vehic les: w ith Home link ® universal remote cont ro l
General information
The HomeLink® fe ature can le arn up to th ree r adio
fre quency codes for m ost c urrent transmitters used for
operating garage doors, es tate gates , home or outdoor
ligh ting sy stems, and other devices .
You m ust first pro gram the H omel in k® trans mitter befor e you can
use the system=>
page 195, "Programm ing th e Homelink® trans ­
m itter".
In order to pro gram t he Homelink® transmitter fo r devices utilizing
ro lling code, a second person on a ladder who can safe ly reach the
ga rage door o pene r m oto r is rec omm ended . It is also necessa ry to
locate the "learn" button on your garage door opener motor. Refer
to t he op era ting instructions for the opene r, as the loca tion and
co lor of this button may vary by manufacturer .
Y ou can still use the o rigina l remote c ontrol fo r th e dev ice at any
time.
& WARNING
• Never use the Homelinkl1JI transmitter with any garage door
opener that does have not the safety stop and reverse feature as
requ ired by federal safety standards . This in cludes any garage
door opener model manufactured before April 1, 1982.
• A garage door opener which cannot detect an object , signaling
the door to stop and reverse does not meet current federal safety
standards . Using a garage door opener without these features
increases risk of serious injury or death .
& WARNING (continued)
• For safety reasons never release the parking brake or start the
engine while anyone is standing in front of the vehicle.
• A garage door or an estate gate may sometimes be set in
motion when the Homelink ® remote control is being
programmed . If the devi ce is repeatedly activated , this can over ­
strain motor and damage its electrical components -an over ­
heated motor is a fire hazard!
• To avoid possible injuries or property damage , please always
make absolutely certain that no persons or objects are located in
the range of motion of any equipment being operated.
[ i ] Tips
• I f you wou ld l ik e mor e infor mation o n Hom elink®, w here to
purchase the Homelink ® compatib le products, or wou ld li k e to
pu rchase the Homeli nk® Home Ligh ting Package, please call t oll­
free: 1 -8 0 0 -355 -3515.
• F or Dec lara tion of Compliance to U nite d Sta tes FCC an d Indu stry
C anada regulations=>
page 385 . •

-S
afe ty b elts ----=-----------------
- Make sure that your passengers also b uckle up and prop­
erly wea r th eir sa fety belts.
Protect children wit h a child restraint system appropriate
for the size and age.
The warning light i in the instrument cluster lights up when the
ignition is switched on as a reminder to fasten the safety belts. In
addition , you will hear a warning tone.
After the ignition is switched on, the warning light in the instrument cluster will a lways come on for about 6 seconds and if the driver has
not fastened the safety belt, a warning tone will also sound for
about 6 seconds . As soon as the driver has fastened the safety belt,
the warning tone will stop and the warning light will go out .
If the driver or front seat passenger have not buckled -up within
about 10 seconds after the warning tone has stopped and the
vehicle is moving faster than about 15 mph, the warning tone will
sound again for about 6 seconds and then stop for 24 seconds and
then repeat this reminder sequence for a maximum of 2 minutes. At
speeds be low 5 mph, the warning tone will not sound.
Fa sten your safe ty belt and m ake su re that your p assengers also
properl y put on th eir s afet y belts .
& WARNING
• Safety belt s are the single mo st effective mean s available to
reduce th e risk of ser ious injur y and death in a utomobile acci­
dent s. For your prote ction and th at of your pas senger s, alwa ys
c orre ctl y we ar safety belt s when t he vehicle is moving .
• Failure t o pay att ention to th e warning light that co me on,
c ould lead to per sonal injury .•
Why safety belts?
Frontal co11isions and the law of physics
Front al crashes create very strong forces for pe ople riding
in vehicles.
F ig. 222 U nbel ted
o cc up ants i n a ve hicle
he ading for a wa ll
Fi g. 223 T he vehicle
c ras hes in to t he wa ll
The physical principles are simple. Both the vehicle and the passen­
gers possess energy which varies with vehicle speed and body
we ight . Engineers cal l this energy "kinetic energy ."
T he higher the speed of the vehicle and the greater the vehic le's
we ight, the more energy that has to be "absorbed" in the crash .
Vehicle speed is the most significan t factor. If the speed doubles
from 15 to 30 mph (25 to 50 km/h), the energy increases 4 times! .,