engine AUDI S6 2008 Service Manual

___________________________________________________ O_ n_ t_h _e_ r_o _a_ d _ ___.9I
and then the driver's door is opened. In this instance, the steering is
not locked . The steering is locked :
• If you press the
I STOP ] button aga in for more than 1 second.
• If you c lose the driver's door and lock your vehicle from the
outside .•
Electromechanical parking brake
Operation
The electromechanical parking brake replaces the hand
brake.
Fi g. 12 6 Center
co nso le: Parki ng bra ke
- Pull the switch to app ly the park ing brake => fig. 12 6. The
indicator light in the switch will come on .
- Step on the brake pedal or the accelerator pedal and
press the switch at the same time to rel ease the parking
brake. The indicator lig ht in the switch wi ll go out.
Your vehicle is equipped with an elect romechanical parking brake
which replaces the handbrake . T he parking brake is designed to
prevent the vehicle from rol ling unintentional ly.
Con tro ls and eq uip­
ment
I n add ition to the normal functions of a traditional hand brake, the
e lectromechanica l parking brake provides various convenience and
safety functions.
Emergen cy brake
An emergency brake ensur es that the vehicle can be slowed even if
t he
normal brakes fail=> page 131, "Emergency braking".
Ind icator lights
• If the parking brake is applied with the ignition tu rned on , the
indicator light in the instrument cluster (U.S models :
::i.:,, Canadian
models: ®)) and in the switch <®) will com e on .
• I f the parking brake is app lie d 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
If the vehicle i s stationary and the tr ansmi ssion is engag ed with
the engine ru nning , the engine should not be speeded up (e .g .
manu ally from under the hood ). Otherwi se the vehicle will sta rt to
move -you run the risk of a n accident .
0 Note
If the warning/indica tor light (U.S . mode ls: BRAKE , Canadian mode ls :
(Ci)) ) flashes in the instrument clus ter, there is a brake system
malfunction . By pressing the
I CHECK] button, you can bring up a
driver message which explai ns the ma lfunc tion in more detail. If the
message
P a rki ng brake ! Plea se conta ct w ork shop appears, there is
a par king brake malfunction which you should have repaired imme -
d iate ly by an authorized dealership=>
page 32. ..
Vehicle care
I I irechnical data

• .___O_ n_ t_ h_ e_ r_ o_ a_d ____________________________________________________ _
[ i] Tips
• You can apply the parking brake at any time - even with the igni­
tion turned off. The ignition must be turned on in order to release
the parking brake .
• Occasional noises when the parking brake is applied and
released are normal and are not a cause for concern .
• The parking brake goes through a self -test cycle at regular inter ­
vals - when the vehicle is parked . Any associated noises are
normal. •
Parking
To prevent a parked vehicle from rolling away, there are a
few things you should do.
When you park your vehicle, do the following
- Stop the vehicle using the brake pedal.
- Pull the switch to apply the electromechanical parking
brake.
- Move the selector lever into the
P position ~& .
- Switch off the engine and remove the ignition key from
the ignition lock.
When you park your vehicle on hills, do the
following - Stop the vehicle using the brake pedal.
- Pull the switch to apply the electromechanical parking
brake.
- If you are parking headed downhill, turn the front wheels
toward the curb. - If you are
parking headed uphill, turn the front wheels
awayfrom the curb.
- Move the selector lever into the P position .
- Switch off the engine and remove the ignition key from
the ignition lock.
& WARNING
This is how you can reduce the risk of injury when leaving your
vehicle.
• Never park the vehicle where it can come in contact with dry
grass, spilled fuel or any other flammable materials.
• When parking on hills, always turn the wheels so that the front
wheels will first roll into the curb, if the vehicle should start to roll.
• Never allow anyone -especially small children -to remain in the
vehicle when it is locked. Locked doors make it more difficult for
rescuers to access the passenger compartment in the event of an
emergency. Danger to life!
• Never leave children unsupervised in the vehicle. Children
could release the parking brake or move the gearshift lever out of
gear. The vehicle could start to roll away and cause an accident.
• No matter what the season is, the temperature in a parked
vehicle can reach dangerous levels.
0 Note
• Please exercise care when you park your vehicle in parking areas
with parking barriers or curbs. Parking barriers and curbs vary in height and could damage your bumper and related components as
the front of your vehicle moves over a barrier or curb that is too
high, as you park or as you back out of a parking spot. In order to be
sure that no such damage can occur, you may wish to stop short of
having the front tires of your car touch the parking barrier or curb . ..,_

On the road -
----------------
The display=> page 132, fig. 128 will show the set speed . The
display may vary depending on the type of disp lay in your vehicle .
The indicator light
CRU ISE (US model) I (')0 (Canadian mode l) wi ll also
light up in the instrument cluster.
The speed is kept constant via an engine output adjustment or active brake intervention .
_& WARNING
• Always pa y attent ion to traffic even whe n the crui se control is
switc hed on. You are alw ays r esp onsi ble for your speed and the
di sta nce b etween your vehi cle and other vehi cle s.
• For s afet y reason s, the crui se control should not be u sed in the
c ity , in stop- and-go traffic , on twi sting roads and when road condi ­
t ion s a re p oor (s uch a s ice , fo g, gra vel , he avy ra in and h ydro ­
planing ) - risk of accident.
• Turn off the crui se control tempor arily when e nte ring tu rn
lan es, highway exit lanes or in constru ction zone s.
• Plea se note that in adv ertentl y "re sting " yo ur foot on the accel­
erator ped al cau se s the cruise control not to brake . Thi s is b ecau se
the crui se control i s overridden b y the dri ve r's acc eleration .
[ i] Tips
The brake lights il luminate as soon as the brakes decelerate
automatically .•
Ap plie s to v ehicl es: w it h c ruise contro l
Changing speed
-Press lever© in the 0 or O directi on => page 132,
fig. 127 t o in crease or d ec reas e your spe ed.
- Re lease the lever to s ave tha t speed.
Controls and equip ­
ment Change speed in increments of 1 mph (1 km/h) by
lightly pressing
the lever . If you keep the lever pressed down, you will a lter your
speed in 5 mph (10 km /h) increments .
You can a lso press the acce lerator pedal down to increase your
speed, e.g. if you want to pass someone. The speed you saved
earlier will resume as soon as you release the accelerator pedal.
If , however, you exceed your saved speed by 5 mph (10 km/h) for
longer than 5 minutes, the cruise control will turn off temporarily .
The symbol wi ll go ou t bu t the saved speed wi ll be retained. •
Applie s to v ehic le s: with c ruise cont ro l
Presetting your speed
You can prese t your desire d speed while the vehicle is not
moving.
- Turn o n the ignition .
Pu ll lever © into posit ion
G) => page 13 2, fig. 127 .
Press the lever in the
0 or O direction to increase or
decrease your speed .
- Release the lever to save that speed .
This function makes it possible, for example, to save the speed you
want before driving on the highway. Once on the highway , activate
the cruise contro l by pu lli ng the lever toward
G) . •
Ap plies to ve hic les: with c ruise contro l
Switching the system off
Temporary dea ctivation
- Press the brake pedal, or
I • •

Automatic transmi ssio n -
------------------'
Automatic transmission
tiptronic® (6-speed automatic
transmission)
Applies to vehicle s: wit h 6 -s p ee d a uto mati c tra nsm ission
General information
Your vehicle is equipped with an electron ically controlled 6 -speed
automatic transmission . Upshifting and downshifting takes place
automatically.
The transmission is also equipped with tiptronic ®. It allows the
driver to shif t gears
manually if desired=> page 157 . •
A pplies to vehi cle s: with 6-s p eed autom atic tra nsm iss ion
Driving the automatic transmission
St arting th e engin e
- The selector lever must be in Nor P.
Startin g off
- Press and hold the brake pedal.
Con tro ls and eq uip­
ment
F ig . 150 Sh ift gate on
t h e ce nter co nso le:
selecto r lever with
re lease b utto n
- Press and hold the release button in the selector lever
hand le and move the selector lever from
P or N to D and
release the butto n
=> &.
- Wait briefly until the transmission has s hifted (you w ill
feel a sligh t movement).
- Remove your foot f rom the brake pedal and acce lerate .
Rocking ba ck and forth to b ecome unstu ck
- Shift only between D and R when the vehicle is at a full
stop and the eng ine is running at idle speed.
Stopp in g
- Press and hold the brake pedal un til t he ve hicle has come
to a complete stop.
- Keep the brake pedal depressed so that the vehicle cannot roll forward or backward whi le it is idling =>& .
- Once stopped, do not depress the accelerator pedal to
rev up t he engine =>& .
Parkin g
- Press and hold the brake pedal until the ve hicle has come
to a complete stop.
- Set t he parking brake firmly =>
page 130, "Parking".
- Press and hold the release button in the selector lever
handle, move the selector lever into
P and then let go of
the release button => & . .,,_
Vehicle care I I irechnical data

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The selector lever must be in Nor P. If one of the driving positions
is engaged a safe ty switch will prevent the engine from bei ng
started . See also=:> page 125 .
Before you move the selector lever from the
P position, you must
a lways apply the brake peda l be fore and wh ile depress ing the
button in the hand le of the selector lever .
& WARNING
• Unintended vehicle movement can cause serious injury .
- When the selector lever is in a driving po sition , the vehicle
m ay creep , even at idle speed . Therefore do not release the
parking brake or foot brake until you are ready to move ,
be cause power i s tran smitted to the wheels as soon as a
driving position is engaged .
- Do not accelerate wh ile se le cting a driving position . At th is
t ime the engine must be at idle speed so that undue stre ss is
not pla ced on the clut che s in the tr ansmission .
- Remember : - even when stopped briefly with the automatic
tr ansmission in "D ", "S " or "R ", engine po wer i s bei ng tran s­
mitted to the whe els. Y our vehicle could "c reep " forward or
ba ckward. When stopped , keep the brake pedal fully depre ssed
and u se the parking brake if nece ssary to keep the vehicle from
rolling .
• If the selector lever is unintentionally moved into N while you
are driving , take yo ur foot off the a ccelerator pedal and wait fo r
the engine to return to id le speed before selecting a driving posi ­
t ion .
• Never shift into "R " or "P " when the vehicle i s in motion .
• Never get out of the driver 's seat when the engine is runnin g.
• If you must get out of the veh icle, move the selector le ver
se curely into the P position and appl y the park ing brake firmly .
• If the engine must remain running , ne ver have any dr iving po si­
tion engaged when che cking under the hood . Make sure the
s electo r le ver has securel y eng aged and i s lo cked in "P " with the
& WAR NING (continued )
parking brake firmly set=> page 289 , "Engine compartment ".
Otherwi se , any increase in engine speed may set the vehicle in
motion , even w ith the park ing bra ke applied . •
App lies to vehicles: with 6-speed automatic t ransmission
Selector lever positions
This sec tion describes the select or lever p ositions and
drivin g ra nges.
Fi g. 1 51 D isplay i n the
in strument clu ster :
s ele ctor lev er in po si­
t ion D
T he se lec tor leve r posi tion engaged appea rs next to the selector
lever as we ll as in the instrument c luster disp lay .
P -Park
In this selector lever position the transmission is mechanically
l ocked. Engage
P on ly when the vehicle is completely stopped=> &
in "Driving the automatic transmission" on page 153.
To shift in or out of positio n
P, you must first press and hold the
brake peda l and then press the release button in the se lector lever
handle while moving the selector lever to or from
P . You can shif t
out o f this pos ition only with the ignition on.
~

Automatic transmission -
------------------'
R -Reverse
The transmission will automatically select the lowest gear ratio
when you shift into reverse .
Select
R only when the vehicle is at a full stop and the engine is
running at idle speed::::;,
& in "Driving the automat ic transmission"
on
page 153 .
Before you move the se lector lever to R , press both the button in the
handle of the selector leve r
and the brake pedal at the same time .
When the ignition is on , the backup lights i lluminate 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 155.
When the vehicle is stationary or at speeds below 3 mph (5 km/h),
you must always apply the footbrake befor e and while moving the
lever out of
N.
D -Normal position for driving forward
Position Dis for norma l city and highway driving. It ranges from zero
to top speed and all six gears shift au tomatically, depending on
engine load, driving speed and automatica lly selected shift
programs. The gear engaged is shown in the right of the display
::::;, page 154, fig. 151.
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 i t may be advantageous to temporarily
switch to the manual shift program to manua lly se lect gear ratios to
match specific driving conditions::::;,
page 157.
S -Sport position
Se lect this position for spor tier performance . In this position, the
transmission will not upshift as soon, allowing the vehicle to use the
Con tro ls and eq uip­
ment
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 153 .
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. •
Applies to ve hic les: with 6-spee d autom atic trans mission
Automatic Shift Lock (ASL)
The Automatic Shift Lock safeguards you against acciden­
tally shifting into a forward or the reverse gear and
causing the vehicle to move unintentionally.
Fig. 152 Shift gate:
selec tor leve r loc k
positions and interlock
button highlight ed
The selector lever lock is released as follows:
Vehicle care I I irechnical data

....... __ A_u_ t_o _m_ a_ t_ ic_ t_ r_a _ n_ s_m _ i_s _s _i_o _n ________________________________________________ _
-Tu rn t he igniti on on .
- Step on the brake peda l.
At the some time press and hold
the interlock button on t he side of the gear selector knob
~ page 155, fig. 152 with your thumb unt il you have
moved the selec to r l eve r to the desi red posi tion .
Automatic sele cto r lever lo ck
The selector lever is locked in the P and N positions when the igni ­
t ion is turned on . To move the lever from these positions the dr iver
must depress the brake pedal. As a reminder to the driver, the
following warning appears in the ins trument cluster disp lay when
the selector is in
P and N :
When stationary apply footbr ake while selecting ge ar
A time delay e lement prevents the se lector lever from lock ing 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 lef t in
N (Neutra l)
for more than approximately 1 second, without the brake pedal
being pressed .
At speeds above about 3 mph (5 km/h) the Au tomat ic Shift Lock is
automatically deactivated in the
N position .
Interlo ck button
The lock button on the se lector lever prevents the lever from being
accidentally shifted into certain positions. Pressing this button
deactivates the selector lever lock. Depending on the direction of
the shift, the se lector lever locks at different positions . The positions
are highlighted in the illustration ~
page 155, fig. 152 .
Ignition key saf ety int erlo ck
The key cannot 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 locked in the
P position. •
Applies to vehi cles : w it h 6- spee d au tomat ic t ra nsm issio n
Kick-down
The kick-down feature allows the vehicle to generate
maximu m acceler atio n.
When you press the accelerato r pedal beyond the resistance po int
that is reached at fu ll thrott le, the transmission will se lect a lower
gear rat io based o n vehicle speed and engine RPM . The engine RPM
wi ll be contro lled to produce max imum vehicle acceleration as long
as y ou co ntinue to press the accelera tor pedal beyo nd this resis­
tance po int .
& WARNING
Be careful when u sing the kick-down feature on slippery roads .
Rapid acceleration may cause the veh icle to skid. •
Applies to vehicles : wi th 6-s pee d au to m ati c transmiss ion
Dynamic shift program (DSP)
The aut om atic tr a nsmission is ele ctr onically cont rolled.
T he transmission is self adapting and wi ll automati cally se lect the
b est shift program suited to the driving condi tions and drivi ng s tyle.
The transmission wil l se lect one of the
economy programs when
you drive at a steady speed or a gradually changing speed without heavy acceleration . This achieves optimum fuel efficiency, with ear ly
upshifting and delayed downshifting.
The trans missi on will au tomat ica lly select the
sporty shi ft prog rams
when you drive at higher speeds, or with heavy acce leration and
frequen tly cha nging speeds . Upshifts ar e delayed t o make full use
of engine power . Down shifting takes place at higher engine speeds
t han in the economy programs . _.,

_______________________________________________ A_ u_t _o _m_ a_ t_ i_ c _ t_r _ a _n _s_ m_ i_ s _ s_ i_ o _ n _ ___._
The selection of the most suitable shift program is a continuous,
automatic process. The driver can also make the transmission
switch to a sporty program by
quickly pressing down the gas pedal.
This causes the transmission to shift down to a lower gear to
achieve rapid acceleration, e.g. for quickly passing another vehicle.
You do not need to press the gas pedal into the kick -down range.
After the transmission has upshifted, the original program is
selected according to your driving style.
An additional shift program allows the automatic transmission to
select the proper gear for uphill and downhill gradients .
This keeps the transmission from shifting up and down unneces ­
sarily on hills. The transmission will shift down to a lower 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 .•
Ap plies to ve hic les: w ith 6- spee d automat ic t ransm is sion
Manual shift program
Using the manual shift program you can manually select
gears.
Con tro ls and eq uip­
ment
Fig . 15 3 Ce nter
co nsole : shifting the
tiptronic® manually
~-1l I _, ,.
i ~YJ. 41 Of . .,,..,.
il 300mi Fig. 154 Display:
manual shift program,
selected gear high­
lighted
Switching to manual shift program
With the selector lever in D, push the lever to the right .
The display will show
6 5 4 3 2 1 as soon as the selector
lever is moved. The gear you select will also be high­
lighted
=> fig. 154.
To upshift
Push the selector lever forward to the plus posit ion 0
=> fig. 153.
To downshift
-Push the lever to the min us position Q .
When accelerating, the transmission will automatica lly 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 app ly a heavy
throttle, the transmission will stay in 1st gear until near maximum
RPM is reached, or until the driver shifts into 2nd gear .
If you take your foot off the a ccelerator peda l when driving down a
steep incline, tiptronic® wi ll 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 throttle again . .,_
Vehicle care I I irechnical data

-L-_:A:....::..: u:;. t .:.o.::..:. m.:....:..: a:;. t.:. i;..: c :......: t.:r .:a :...n.: s;;:..:. m;_;_;_ is.::....:: s.:i o .::..:. n.:.... _______________________________________________ _
[ i J Tip s
• When you shift into the next lower gear, the tran smission will
downshift only when there is no possibi lity of over -revv ing the
engin e.
• When the kickdown comes on, th e transmission wil l shift down
to a lower gear, depending on vehicle and engine speeds.
• tiptronic® is inoperative when the transmission is in the fail -safe
mode .•
A pplies to vehi cles : w it h 6- speed automatic trans mission
St ee ring wh eel with tiptroni c®
The shift buttons on the steering wheel allow the driver to
shift gears manually.
Fig . 155 Stee ring
whe el: Shift button s
To downshift, touch the button on the left Q.
To upshift, touc h the button on the r ight G) .
The shift buttons are act ivated when the selector lever is in D, Sor
in the manual shift program (tiptronic) .
Of course, you can continue to use the manual shift program with
the selec tor lever on the center console. •
App lies to veh ic les : w it h 6-speed au tomat ic tra n smission
Fail-saf e mode
If tiptronic® suffers a malfunction, the fail-safe mode
maintains minimum driveability.
In the event of particular system malfunctions, the au tomatic trans­
mission switches to th e fail -safe mode. This is signalled by al l the
segments in the display illuminating or going out.
You can continue to move the selec to r lever to all positions . The
manual shift program (tiptronic l is switched off in the fai l- safe
mode .
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 e ngag ed pr evious ly. The transmission remains in 5th gear, if 4 th , 5th
or 6th gear was engaged previous ly .
T he next time you drive off or sta rt the engine , 3rd gear is engaged .
You can continue to use reverse gear. But the electronic lockout for
reverse gea r is turned off.
(D Note
If the transmission switches to fail -safe mode , you should take the
v ehicle to an au thori zed Audi dealership as soon as possible to have
the condition corrected .•

_________________________________________________ A_ u_t_ o_ m_ a_t _i _ c _ t _ra_ n_s_ m __ is_ s_ io_ n _ __.1!111
Ap plies to vehicle s: with 6-speed automat ic transmission
Emergency release for selector lever
If the vehicle's power supply fails, the selector lever can
be released in an emergency.
Fig . 156 Remove the
as htray i nsert
Fig . 157 Eme rge ncy
r elease fo r se lecto r
l ever
The emergency release is located under the insert for the
ashtray.
- Slide open the cover for the ashtray .
- Grasp the ashtray insert~ fig. 156 by the recesses on
both sides and pull it upward and out.
- Now you can see a sma ll cover in t he as htray holder.
- Release and remove this cover from the ashtray holder.
Con tro ls and eq uip­
ment
Using a screwdriver or a similar tool, press down on the
screw in the m iddle of the ashtray holder, which is now
accessib le, and hold it down
~ fig. 157 .
Now press the interlock and move the selector lever to
the
N position.
The selector lever can only be moved from the P position if the igni ­
tion key is in the lock and the ignition is turned on. If the vehicle has
to be pushed or towed if the power supply fails (e.g. battery is discharged), the selector lever must be moved to the N position
using the emergency locking device .•
multitronic ®
Applies to veh icles: with multitronic® Continuously Variable Transm ission (CVT l
General information
Your vehicle is equipped with a electronically controlled continu­
ously variable transmission (multitronic ®l. Inside the multitronic ®
system, the gear ratios are not shi fted in finite steps as in a conven ­
tional automatic transmission, but rather
co ntin uously. As a result,
engine power is applied smoothly and comfortably, and better fuel
economy is achieved.
The transmission selects the appropriate gear ratio (upshifts and
downshifts) automatically based on set driving programs
=> page 163, "Dynamic shift program (DSP)".
You can also manually select a shift program (tiptronic®)
=> page 164.
You should note, that the multitronic transmission differs from a conventiona l Automatic Transmission . In the multitronic transmis­
sion the engine power is transferred via a link -plate chain, rather
than by a conventional torque converter. The multitronic transmis­
sion greatly reduces vehicle "creep'"' when at a standsti ll and the
transmission is in
D Sor R. •
Vehicle care I I Technical data