2008 AUDI S6 change time

• ..__A_ d_a...: p:,..._ ti_v _ e_ C_ ru_ is_ e_ C_ o_n_ t_ r_ o _ l ___________________________________________ _
- Drive at the speed you want. The speed must be between
20 and 95 mph (30 and 150 km/h).
Press the !S ETI button ~
page 137, fig. 132 to store the
desired speed.
Af te r the (S ET) button is released, the current speed is stored and
maintained .
The saved speed is now shown in the LED display in the speedom­
eter by one or two illuminat ed red light diod es =>
page 143. At the
same time, the saved speed is also shown for a short time in the
Information line=>
page 745.
[ i ) Tips
For safety reasons , the stored speed is dele ted when the ignition is
turned off. •
Applie s to vehi cle s: wi th Ad aptive Cruise Co ntrol
Changing stored speed
The speed can be changed without touching the acceler ­
ator or brake pedal.
Fig. 133 Control lever:
Changing speed
Increasing speed
- Press the lever up briefly upwards 0 ~ fig. 133. USA
models: the speed increases by about 2.5 mph. Canada
models: speed will increase by one mark on the speed­
ometer scale.
- Press the lever upwards
0 and hold it. As long as you
hold the control switch down, the light diode display in
the speedometer LED display in the speedometer moves
forward and the speed is increased.
Reducing speed
- Press the lever downwards briefly Q. USA models: the
speed decreases by 2.5 mph. Canada models: speed will
decrease by one mark on the speedometer scale.
- Press the lever downwards
O and hold it. As long as you
hold the control switch down, the light diode display in
the speedometer LED display moves backward and the
speed is reduced .
After releasing the control switch, the system regulates the speed to
the value just set.
After each adjus tmen t, the n ewly-set speed is shown for a short
time in the Information line=>
page 145.
[ i ) Tips
You can increase your speed at any time by stepping on the acceler ­
ator pedal. After you release the accelerator pedal , the system
adjusts back down to the speed you previously set. A new desired
speed can be stored at any time by pressing the
( S ETI button
=> page 137, fig. 132. •

_____________________________________________ A_ d_a ...: p_ t_ i_ v _e_ C_ ru_ is_ e_ C_ o_n _ t_ r_o _ l _ __.11111
@ Di spl ay in t he instrum ent clust er
In display area@ information from the navigation system and the
trip computer is disp layed in addition to information about Adap tive
Cruise Cont rol.
You can select among the different information by repeated brie f
taps on the
[RESET) button on the w indsh ie ld wiper lever
=> page 41, "Operation" .
© Statu s indi cator
The information in area@ is not displayed permanently . Informa­
tion is displayed only if you set or change the speed setting, change
t he time interval, when messages are disp layed or if the Adaptive
Cruise Control is turned off for safety reasons. •
Applies to veh ic les: with Ad apt ive Cru ise Co nt rol
Display in the speedometer
Desired speed
Fig . 1 37 Display in th e
s pe ed om eter
The desired speed set by the driver is displayed by a red LED .
I f the desired speed was set between two lines on the speedometer
us ing the
[ SET ) button, the two closest light diodes will come on
=> fig. 137.
Con tro ls and eq uip­
ment
The system al lows only speeds from 20 to 95 mph (30 to 150 km/h)
t o be set. This speed range is faintly i lluminated in the speedome ter
(LED ligh ts) .
Ind icator light s (sy mbols )
• "'' ~ Open ro ad :
The indicator light""~ shows that Adaptive
Cruise Control is active and that no object is ahead o f the vehicle.
A
stored speed requested is maintained .
• ~'" '~ Driving in traffic: The indicator light~""~ indicates that
an object has been detected trav eling in front. Your speed is
adjusted according to the speed of the vehicle in fr ont . The Adap tive
Cruise Control acce lerates and brakes automatica lly within the
system's operation pa rameters.
• ~" "~ Driver inter vention p rompt : The red flashing warning
light
c::::, ,,, ,~ means Request for driver to a ssume control. Yo u as the
drive r must slow the vehic le with the foot brake . The symbol ~,, ..
~
tel ls you that the Adaptive Cruise Control is not able t o slow t he
vehicle down enough to keep a enough distance to the vehic le in
front of you . An warning tone will also sound when the symbol
appears. For more information about the driver intervention prompt
=> page 146.
[ i ] Tips
• I f you use the accelerator to go faster than the speed of the
object ahead of you, the
driver intervention prompt wi ll no t be
accompanied by a warning signal.
• I f the speed you prev iously set is exceeded, the ind icator light in
the speedometer will switch off. •
Vehicle care I I Technical data

_____________________________________________ A_ d_a ...: p_ t_ i_ v _e_ C_ ru_ is_ e_ C_ o_n _ t_ r_o _ l _ __.11111
Ap plies to vehicles: with Adaptive Cru ise Co nt rol
System status indicator
The text messages and symbols shown in this area of the
display are not displayed perm anently.
T ime intervals
Fig . 139 Sy stem
sta tus indi cator
The different symbols for the time intervals appear if you change the
settings ~ fig. 139 .
The text message ... (three white dots) appears if a setting cannot be implemented with the operating lever . The following are possible
reasons:
• If you pul l the control lever towards you to resume speed but no
requested speed was set .
• I f you push the lever up to increase (or down to reduce) speed
when no speed has been set previously.
• If you push the lever up to increase (or down to reduce) speed
and this speed is outside the range from 20 to 95 mph (Canada
models : 30 to 150 km/h) .
ACC fun cti ona lity limited
The text message AC C functionalit y limited appears when the ACC
System does not detect any objects over an extended time period.
For the time being, the distance to vehicles up ahead is not being
Con tro ls and eq uip­
ment
controlled. The ACC system is not switched off, so increased alert­
ness is required. The following may be reasons for the text message
ACC Functiona lly limited:
• The ACC sensor is dirty. The ACC system is not reacting, or is not
reacting correctly, to veh ic les travel ing ahead.
• I t is possible that you are driving on a road with very light traffic
without anything at the side of the road (e.g. guard rai ls, traffic
signs, trees). As soon as a vehicle is detected by the system again,
it returns to its control range and the text message disappears .
The ACC sensor is located in the area under the front license plate.
If there is a loss of operation due to heavy contamination, this area
should cleaned to restore proper operation .
ACC not available
The text message ACC n ot ava ila ble appears, for example, if the
t emperature of the brakes is excessive. Adap tive Cruise Control is
temporarily not available . A warning tone sounds as a reminder .
ACC not available!
The text message ACC not ava ilable ! appears in the event of a
malfunction . Adaptive Cruise Contro l is tur ned o ff. A warning to ne
sounds as a reminder. Have the system inspected by a qua lified
dea lership .
ACC se nsor bl ocked !
The text message AC C sensor blocked ! appears when the ACC
System can no longer guarantee safe detection of objects . Adaptive
cruise control is turned off. A chime sounds as a rem inder .
To decide whether it is necessary to switch off the ACC (ACC sensor
blocked
!) or if it is only a temporary condition (ACC functionality
limited), the system wi ll also takes into consideration the outside
temperature and/or the windshield wiper operation.
The ACC sensor is dirty o r blocked (e .g . leaves, sn ow).
Vehicle care I I irechnical data

• .___A_ d_ a --=- p_t_ i_v _e _ A_ ir_ S_u_ s_,_ p_e_ n_ s_io _ n _____________________________________________ _
Adaptive Air Suspension
Adaptive Air Suspension and
Damping
A pplies to veh icles: with Adaptive Air Suspens ion
Description
Adaptive Air Suspension and damping can be regulated
and they adapt automatically to a request from the driver
and the driving situation at the time.
Adaptive Air Suspension is an electronically controlled springing
and damping system . Th is chassis system makes it easier on the
driver by adapting to the particular situation through imperceptible
control processes.
The
Adaptive Air Suspension component regulates ground clear ­
ance depending on vehicle speed, load condition and driver input.
When the system is in automatic mode, accelerating to a speed above a predetermined limit will make the vehicle lower itself. On
the other hand, driving more slowly results in the vehicle raising
again at specific speeds.
The
damping component provides individual control of the
damping forces. For example, with damping characteristics set to
provide greater comfort, damping is set somewhat harder for a brief
period only as required, for example, when going around a curve or
over rough road surfaces as well as when braking.
Settings
Adaptive Air Suspension provides the driver with the opportunity to
set the chassis characteristics also to their individual preference.
With the driving modes
standard, automatic and dynamic the driver
has three chassis settings available, ranging from comfort to sporty .
In addition,
lift provides a fourth mode which can be selecting for
driving over poor stretches of road :::::,
page 183, "Chassis controls". The modes are set in
MMI:::::,
page 183.
& WARNING
The height of the parked vehicle can change due to temperature
fluctuations or changes in load.
0 Note
• Whenever you park your vehicle, always make sure there is
adequate clearance above and below the vehicle. The height of the parked vehicle can change as the result of temperature fluctuations,
changes in load condition and changes in the driving mode (ground
clearance!.
• If the vehicle is being transported (e.g. by tow truck, train, ship,
etc.), mount the tie -down chains/cables over the running surface
(circumference) of the tires . Never secure the vehicle by the axle, the
suspension struts or the front or rear towline eye. For technical
reasons, the pressure in the suspension struts may change during
the transport, which could result in the vehicle no longer being
secured properly.
• To prevent damage to the vehicle underbody, remember that
your vehicle is not an off-road vehicle, even in the "lift" mode. The
ground clearance is insufficient for this type of operation.
• If you are going to tow a trailer, you must activate the trailer oper­
ation mode :::::,
page 184.
[ i] Tips
Before you raising your vehicle using the vehicle jack (for example,
when changing a flat tire) you must activate the jacking mode
=> page 184. •

___ A_ ir_ b_ a-g _ s_y _s_ t_ e_ m _________________________________________________ _
& WARN ING (continued )
seating posit ion and have the airb ag system inspe cted by your
Audi dealer .
• A t ight tether or other strap on a rearward-fa cing child restr aint
att ached to the front pas senger se at can put too much pres sure
on the weight-sensing mat in the seat and reg ister more weight
than is actually on the seat. The heavier weight registered can
m ake the system work as though an adult were on the seat and
deploy the Advanced Airbag when it must be suppressed cau sing
ser ious or even fatal injury to the child .
• If, in exceptional circumstance s, you mu st in stall a forward ­
f a cing child restraint on the front passenger seat , always move the
seat into its rearmost position in the seat's fore and aft adjust ­
ment range , as far away from the airbag as po ssible . The ba ckrest
must be adjusted to an upright position. Make sure that the
PASSENGER AIR BAG OFF light comes on and stay s on all the time
whenever the ignition is switched on .
& WARNING
• If the PASSENGER AIR BAG OFF light does not go out when an
adult is sitting on the front passenger seat after tak ing the step s
described above, make sure the adult i s properly seated and
restrained at one of the rear seating posit ions .
• Have the airbag system inspected by your Audi dealer before
transport ing anyone on the front passenger seat .
[ i ] Tips
If the weight -sensing mat in the front passenger seat detects an
e m pty seat , the front a irbag on the passenge r side wil l be tur ned
off, and PASSENGER AIR BAG OFF will stay on.•
Repair, care and disposal of the airbags
P arts of the airbag system are installed at many different p laces on
you r Aud i. Insta ll ing, r emoving, servic ing or repa iring a pa rt in an
area of the vehicle can damage a part of an airbag system and
p revent that sys tem from working pr operly in a c ollisi on.
There are some important things you have to know to ma ke sure
t h at the effective ness of the system will not be impai red and that
discarded co mponents do not cause injury or po llute the env iro n­
ment .
& WARNING
Improper care , servicing and repair procedures can increase the
risk of personal injury and death by pre venting an airbag from
deploying when needed or deploying an airbag unexpectedly:
• Never cover , obstruct , or change the steering wheel horn pad
or airbag cover or the instrument panel or modify them in any way .
• Never attach any objects such as cupholders or telephone
mountings to the surfaces covering the airbag units .
• For cleaning the horn pad or instrument panel , use only a soft,
dry cloth or one moistened with plain water. Solvents or cleaner s
c ould damage the airbag cover or change the stiffness or strength
of the material so that the airbag cannot deploy and protect prop ­
erly .
• Never repair , adju st, or change any parts of the airbag sy stem .
• All work on the steering wheel , instrument panel , front seats or
electrical system (including the installation of audio equipment ,
cellular telephones and CB radios , etc .I must be performed by a
qualified technician who has the training and special equipment
necessary .
• For any work on the airbag system, we strongly recommend
that you see your author ized Audi dealer or qual ified workshop .
• Never modify the front bumper or parts of the vehicle body .

Fuel supply and filling your fuel tank
Blend of gasoline and ethanol (grain alcohol or ethyl alcohol}
• Anti-knock index must be 87 AKI or higher.
• Blend must not contain more than 10% ethanol.
Blend of gasoline and MTBE
• Anti-knock index must be 87 AKI or higher.
• Blend must contain not more than 15% MTBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform especially well for
winter or summer driving. During seasonal change -over, we suggest
that you fill up at busy gas stations where the seasonal adjustment
is more likely to be made in time.
0 Note
• Methanol fuels which do not meet these requirements may
cause corrosion and damage to plastic and rubber components in
the fuel system.
• Do not use fuels that fail to meet the specified criteria in this
chapter.
• If you are unable to determine whether or not a particular fuel
blend meets the specifications, ask your service station or its fuel
supplier.
• Do not use fuel for which the contents cannot be identified.
• Fuel system damage and performance problems resulting from
the use of fuels different from those specified are not the responsi ­
bility of Audi and are not covered under the New Vehicle or the
Emission Control System Warranties.
• If you experience a loss of fuel economy or driveability and
performance problems due to the use of one of these fuel blends,
we recommend that you switch to unblended fuel. •
Gasoline additives
A major concern among many auto manufacturers is carbon
deposit build-up caused by the type of gasoline you use.
Although gasoline grades differ from one manufacturer to another,
they have certain things in common. All gasoline grades contain
substances that can cause deposits to collect on vital engine parts,
such as fuel injectors and intake valves. Although most gasoline
brands include additives to keep engine and fuel systems clean,
they are not equally effective.
Audi recommends using TOP TIER Detergent Gasoline. For more
information on TOP TIER Detergent Gasoline, please go to the offi­
cial website (www.toptiergas.com).
After an extended period of using inadequate fuels, carbon deposit
build-ups can rob your engine of peak performance.
(D Note
Damage or malfunction due to poor fuel quality is not covered by
the Audi New Vehicle Limited Warranty. •
Fuel tank
Fuel filler neck
The fuel filler neck is located on the right rear side panel behind the
fuel filler flap.
If the power locking system should fail, you can still open the flap
manually - for detailed instructions see=>
page 295.
You can find the fuel tank capacity of your vehicle in Technical Data
=> page 363. .,_

-~_C_ h_e _c _ k_ i_n ...:::g::;...._ a_n_ d_ f_ i_ll _in -'g:::;.._ ___________________________________________ _
current list of oils (manufacturers, brand names etc.) that conform
t o Audi oi l standard VW 502 00 .
Changin g the engine oil
The engine oil and oil filter must be changed according to the
mi leage (ki lometers) and time intervals specified in your vehicle's
Maintenance
& Warranty booklet. Do not exceed these interva ls -
harmful deposits from old engine oil can reduce engine perfor­
mance and can lead to expensive engine repairs.
Changing the oi l at the recommended intervals is so very important
because the lubricating prope rties of oi l decrease gradual ly during
normal vehicle use . If you are not sure when you have your oil
changed, ask your author ized Audi Serv ice Advisor.
Under some circumstances the engine oil should even be changed
more frequently. Change oil more often if you dr ive mostly short
distances, operate the vehicle in dusty areas or mostly under stop ­
and -go t raffic conditions, or when you use your vehicle where
temperatures stay be low freezing point for long per iods.
Detergent additives in the oil will make fresh oil look dark after the
engine has been running for a short time . This is normal and is not
a reason to change the oil more often than recommended.
Damag e or malfunctions due to lack o f mainten anc e
It is essentia l that you change your oi l at the recommended interva ls
using on ly engine oil that complies with Audi oil standard
VW 502 00. Your Limited New Vehicle Warranty does not cover damage or ma lfunctions due to failure to follow recommended
main tenance and use requirements as set forth in the Aud i Owner's
Manual and Maintenance
& Warranty booklet. Your dealer wi ll have
t o deny warranty cove rage unless you present to the dealer p ro o f in
the form of Service or Repair Orders that all schedu led maintenance
was pe rformed in a timely manner. •
Engine oil consumption
The engine in your vehicle depends on an adeq uate
amount of oil t o lubric ate and c ool all of its m oving parts.
In order to provide effective lubrication and coo ling of interna l
engine components, al l interna l combustio n eng ines consume a
certain amount of oil. Oil consumption varies from engine to engine
and may change significant ly over the life of the engine . Typ ically,
engines with a specified break-in period (see=> page 267) consume
more oil du ring the break-in period than they consume after oil
consumption has stabi lized .
Unde r normal conditions, the rate of oil consumption depends on
the quality and v iscosity of the oil, the RPM (revolutions per minute)
at which the engine is operated, the ambient temperature and road
cond itions. Fur ther factors are the amount of oil di lu tion from wate r
condensation or fue l residue and the oxidation leve l of the oi l. As
any engine is subject to wear as mileage bu ilds up, t he oil consump ­
tion may increase over time until replacement of worn components
may become necessa ry .
With all these variables coming into play, no standard rate o f oi l
consumption can be established or specified . There is no alternative
t o regula r and frequent checking of the oil level, see
Note .
If the yel low engine oil level warning symbo l in the instrument
clus ter lights up, yo u should check the oil level as soon as
possible with the oil dipstick=> page 301. Top off the oil at your
ea rliest convenience => page 302 .
& WARNING
Before you check anything in the engine compartment , always
read and heed all WARNING S
=> & in "Working in the engine
compartment " on
page 297.

___ C_h_ e_ c_k _in --=:: g;__ a_n _d_ f_il _li _n ..:g:a.- ___________________________________________ _
Oil level within range
©
- You must add oil. Afterwards, the oil level should be
within range@.
The oil level needs to be checked at regular intervals. The best times
to do this are whenever you refuel and prior to long tr ips. •
Adding engine oil 'l:::1':
Fig. 234 Engine
compartment: Oil filler
cap locat ion
Before you check anything in the engine compartment,
always read and heed all WARNINGS~ & in "Working in
the engine compartment" on
page 297.
Unscrew the cap ~ fig. 234.
Carefully top off with the appropriate o il in 0.5 liter doses.
- Check the oil level again after two minutes ~
page 301.
Top off the oil again, if necessary.
Screw the cap back on the filling hole and slide the o il
dipstick in as far as it will go.
& WARNING
• While topping off, the oil must not come in contact with hot
engine parts -fire hazard!
• The oil filler cap must be properly secured to prevent oil from
being sprayed on the hot engine and exhaust system when the
engine is running -fire hazard!
• If your skin has come in contact with the engine oil , you must
subsequently cleanse it thoroughly.
0 Note
• T he oil level must not be above range @- danger of converter or
engine damage! Contact an au thorized dealership to draw off oil, if
necessary .
• Audi does not recommend the use of oil additives. They may
damage the engine and adversely affect your New Vehicle Warranty.
• Under no circumstances can the oil come in contact with the
sewage network or the soil.
• Observe and follow legal regulations when disposing of empty
oi l containers .•
Changing the engine oil
We recommend that have your oil changed by an autho­
rized Audi dealer or a qualified service station .
Before you check anything in the engine compartment, always read
and heed all WARNINGS ~
& in "Working in the engine compart ­
ment" on
page 297.
The engine oil must be changed according to the intervals specified
in your Maintenance
& Warranty booklet. This is very important ...