fuel pressure AUDI S6 2009 Owners Manual

Safety first ........ ... ... .. .
Driving Safely ................. .
General notes . .... ........... . .
Proper occ upant sea ting positions
Peda l area ... ..... ....... .... . .
Sto\Ning luggage . .... .... .... . .
Reporting Sa fety Defects ....... .
Safety belts .......... ....... .. .
Genera l notes ...... ........... .
W hy safe ty belts? .... ... ... ... .
Safety belts ..... ........ ... .. .
Safety belt pretensioners ... ... .
Airbag sy stem ..... ...... ... .. .
Important t hings to kno\N ...... .
Front airbags . ... ... .......... .
Monitoring the Advanced Airbag
System ... .. ... .... ..... ..... .
Side airbags ......... .... .. ... .
Side curtain a irbags ...... ..... .
Child Safety ................... . 193
194
194
196
200
201
203
205
205
206
209
2 13
215
2 15
2 19
226
231
234
238
Impo rtant things to kno\N . . . . . . . 238
Child safety seats . . . . . . . . . . . . . . 243
Insta lling a ch ild safe ty seat . . . . . 248
Add it ional Information . . . . . . . . . . 251
Lo\Ner anchorages and tether for
ch ildren (LA TC H) . . . . . . . . . . . . . . . .
253
Vehicle operation .... ... .
Inte lligent technology ......... .
Not ice about d ata reco rded by
ve hicle contro l modules ........ .
Elect ronic S tabilizat ion Program
!ESP) ...... .... ..... ..... ..... .
B raking ....... ................ .
Servotronic® -advanced po\Ner
s teer ing syst em ............... .
Driv ing \Nit h your quatt ro® ..... .
Energy management .... ....... .
Driving a nd enviro nment ...... .
The first 1,000 miles (1 ,500 km) and
after\Na rds .............. ... ... .
Cata lytic converter ............ .
Avo id damaging the vehicle .. .. .
Operate your vehicle economically
and minimize pollution ......... .
Trailer towi ng ................. .
Driving \Nit h a trailer ..... ... ... .
Trai ler to\Ning tips ....... ..• ....
261
262
262
262
265
267
2 6 8
269
2 7 1
2 7 1
27 2
273
273
276
2 7 6
278
Table of contents
Vehicle care ....... ... ... ... 281
C leaning and protection ........ 282
Gener al in fo rm atio n . . . . . . . . . . . . . 282
Care of exterior . . . . . . . . . . . . . . . . . 282
Care of inte rior . . . . . . . . . . . . . . . . . 28 9
F u el su pp ly and fillin g your fuel
ta nk . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
Gasoline . . . . . . . . • . . . . • . . . . . . . . . 295
Fuel tank . . . . . . . . . . . . . . . . . . . . . . . 296
C heck in g and filling . . . . . . . . . . . . 300
Engine hood . . . . . . . . . . . . . . . . . . . 300
Engine oil . . . . . . . . . . . . . . . . . . . . . . 303
Engi ne cooling sys te1 T1 . . . . . . . . . . 307
Brake fluid . . . . . . . . . . . . . . . . . . . . . 3 10
Battery . . . . . . . . . . . . . . . . . . . . . . . . 3 11
W indshield/headlight \Nasher
containe r .... .... .. ... .. .... ...
3 16
T iresa ndw hee ls ............ ... 317
T ires ........................ ... 3 17
Tire pressure monitoring system . . 336
Vehicle care I I irechnical data

gallons (7-9 liters) of fuel left. Th is message is meant to remind you
to
refuel.
The tota l tank capacity of your vehicle is listed in => page 369.
0 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 con perform different functions with this button.
Fig. 5 C HECK button in
the instrument cluster
The [ CHECK I button performs the following functions:
Switching on the clock and odometer
With the ignition turned o ff, the odometer reading and the digital
clock with date display can be switched on for about 30 seconds by
pressing the
(CHECK 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.
Contro ls and eq uip­
ment
Instruments and warning /indicator lights
With the ignition turned on, you can start the "Auto-Check
sequence" by pressing the
[CHECK ] button. You can perform an
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).
The number of keys programmed to the vehicle is also displayed.
The display
3\3 indicates that three keys have been programmed.
This allows you to make sure you have received al l of the keys when
you purchase a used vehicle.
For example, if you only receive two keys, you should take those
keys to your authorized Audi dealer to have the missing key deacti­
vated so it cannot be used. You should also report the missing key
to your insurance company .
Calling up the driver information
A yellow or red symbol appears in the instrument cluster display,
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
I CHECK I button.
Setting the speed warning
By pressing the [ CHECK] button 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 .•
Vehicle care I I irechnical data

Driver information display
Engine oil pressure malfunction "t=;f':
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
!CHECK] button:
Switch off engine and check oil level
Immediate actions
- Pull off the road.
- Stop the vehicle.
- Turn off the engine.
-Check the engine oil level with the dipstick=:> page 305.
Dipstick readings checks too low
-Top off oil to the proper level ::::, page 306.
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~ 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
I CHECK]
button:
Do not drive vehicle: Steering defective
-Contact your nearest authorized repair facility.
- Do
not tow your vehicle.
& 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. •

Driver inf ormati on displ ay
Engine oil sensor malfunction => page 35
._ -
Engine speed limitation* => page 36
--Adaptive Light* defective :::::, page 36
Ignition lock malfunction :::::, page 36
--Windshield wiper defective :::::, page 36
Tire pressure monitoring sys -:::::, page 337
tern
Loss of tire pressure
Tire pressure monitoring sys -:::::, page 337
tern
System not available
Ba ttery in remote control key
--Electromechanical
parking brake
Automatic transmission ma l­
function
A pplies to vehi cles : wi th Conven ien ce key
Key not in vehicle
K ey not in vehicle
=> page 43
=> page 123
:::::, page 160,
=> page 167
-
-
-
-
This reminder appears along with the.., symbol if the master key is
removed from the vehicle with the engine running. It is intended to
remind you (e.g . when changing drivers) no t to continue the journey
without the master key.
If the master key is no longer in the vehicle, you cannot switch off
the ignition after stopping the engine and you also cannot start the
•
engine again . What is more, you cannot lock the vehicle from the
outside. •
Light/rain sensor defective
Au tomat ic he adl ight s/au tomatic wiper s defec tive
If the symbo l illuminates, the light sensor has failed . For safety
reasons the low beams are turned on permanently with the switch
in
AU TO . However, you can continue to turn the lights on and off
using the light switch. In the case of a defect in the rain sensor, the
windshie ld wiper lever functions are still available. Have the
light/rain sensor checked as soon as possible at a dea lership .•
Windshield washer fluid level too low "')
U Please top up washer fluid
If the symbol il luminates, add windshield washer fluid to the washer
system and also to the headlight washer system:::::,
page 316. •
Fuel supply too low Q.)
L Pl ea se refuel
When this symbol il luminates for the first time, the fue l reserve
in your vehicles is still about 2 Gal lons (7 to 9 litersl. Refuel as soon
as possible :::::,
page 296.
If the symbo l lights up, even when there is ample fue l in the tank,
and the text
T an k s yste m m alf un ction ! Cont act w orks hop appears
in the display, there is a fault in the system. Contact a qualif ied work ­
shop to have the fault rectified .•

lffl)..,___D_ r_iv _i_ n""' g::;._ S_ a_f _e _ly =---------------------------------------------------
& WARNING
Improperly stored luggage or other items can fly through the
vehicle causing serious personal injury in the event of hard braking or an accident. To help reduce the risk of serious personal injury:
• Always put objects, for example, luggage or other heavy items
in the luggage compartment.
• Always secure objects in the luggage compartment using the
tie-down eyelets and suitable straps.
& WARNING
Heavy loads will influence the way your vehicle handles. To help
reduce the risk of a loss of control leading to serious personal
injury :
• Always keep in mind when transporting heavy objects, that a
change in the center of gravity can also cause changes in vehicle
handling:
-Always distribute the load as evenly as possible.
- Place heavy objects as far forward in the luggage compart-
ment as possible.
• Never exceed the Gross Axle Weight Rating or the Gross
Vehicle Weight Rating specified on the safety compliance sticker on the left door jamb. Exceeding permissible weight standards
can cause the vehicle to slide and handle differently.
• Please observe information on safe driving~
page 194.
& WARNING
To help prevent poisonous exhaust gas from being drawn into the
vehicle, always keep the rear lid closed while driving.
• Never transport objects larger than those fitting completely
into the luggage area because the rear lid cannot be fully closed.
& WARNING (continued)
• If you absolutely must drive with the rear lid open, observe the
following notes to reduce the risk of poisoning :
- Close all windows,
- Close the power roof*,
- Open all air outlets in the instrument panel,
- Switch off the air recirculation,
- Set the fresh air fan to the highest speed.
& WARNING
Always make sure that the doors, all windows, the power roof*
and the rear lid are securely closed and locked to reduce the risk
of injury when the vehicle is not being used.
• After closing the rear lid, always make sure that it is properly
closed and locked .
• Never leave your vehicle unattended especially with the rear lid
left open. A child could crawl into the vehicle through the luggage
compartment and close the rear lid becoming trapped and unable
to get out . Being trapped in a vehicle can lead to serious personal
injury.
• Never let children play in or around the vehicle.
• Never let passengers ride in the luggage compartment. Vehicle
occupants must always be properly restrained in one of the
vehicle's seating positions.
[ i] Tips
• Air circulation helps to reduce window fogging. Stale air escapes
to the outside through vents in the trim panel, on the left side of the
luggage compartment. Be sure to keep these slots free and open.
• The tire pressure must correspond to the load -see the tire pres ­
sure sticker on the fuel filler door.•

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•
Closing the engine hood
- Pull the hood down until the pressure from the struts is
reduced .
- Let the hood
drop down and latch in place. Do not try to
push it shut;
it may fail to engage => &.
& WARNING
A hood that is not completely latched could fly up and block your
view while driving.
• When you close the engine hood, check it to make sure the
safety catch has properly engaged. The hood should be flush with
the surrounding vehicle body parts.
• If you notice while driving that the hood is not secured prop­
erly, stop at once and close it. •
Working in the engine compartment
Be especially careful whenever you work in the engine
compartment.
Whenever you must perform any work in the engine compartment,
for example checking and filling different fluids, there is a risk of injury, burns and accidents. To prevent personal injury always
observe the following WARNINGS. The engine compartment of any
vehicle is a hazardous area
~ & .
& WARNING
To help avoid injury, before you check anything under the hood :
• Turn off the engine.
• Remove the ignition key.
• Apply the parking brake .
& WARNING (continued)
• Move selector lever to "P" (Park).
• Always let the engine cool down. Hot components will burn
skin on contact.
• To reduce the risk of being burned, never open the hood if you
see or hear steam or coolant escaping from the engine compart­
ment. Wait until no steam or coolant can be seen or heard before
carefully opening the hood.
• Keep children away from the engine compartment .
• Never spill fluids on hot engine components. They can cause a
fire.
• Never touch the radiator fan. The auxiliary electric fan is
temperature controlled and can switch on suddenly.
• Never open the coolant reservoir cap when the engine is still
warm . The coolant system is pressurized and hot coolant could
spray out.
• Protect your face, hands and arm from steam or hot engine
coolant by placing a thick rag over the cap when you open the
coolant reservoir.
• If work on the fuel system or the electrical system is necessary :
- Always disconnect the battery.
- Never smoke or work near heaters or open flames . Fluids in
the engine compartment could start a fire.
- Keep an approved fire extinguisher immediately available.
• To avoid electrical shock and personal injury while the engine
is running or being started, never touch:
- Ignition cables
- Other components of the high voltage electronic ignition system.
• If you must perform a check or repair with the engine running: -First, fully apply the parking brake, move selector lever to "P"
(Park). .,
Vehicle care
I t •

_____________________________________________ C_h_ e_ c _ k_in -= g_a _ n_d _ f_il _li _n ..;::g =-- ____.111
0 Note
Driving with an insufficient oil level is likely to cause severe damage
to the engine.
[ i] Tips
• The oil pressure warning display~ is not an indicator of the 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.
• If you have the impression your engine consumes excessive
amounts of oil, we recommend that you consult your Audi dealer to
have the cause of your concern properly diagnosed. Keep in mind
that the accurate measurement of oil consumption requires great
care and may take some time . Your Audi dealer has instructions
about how to measure oil consumption accurately. •
Checking the engine oil level
Fig. 239 Illustration of
principle 1: Markers on
oil dipstick
Fig . 240 Illustration of
principle 2: Markers on
oil dipstick
Before you check anything in the engine compartment,
always read and heed all WARNINGS=> & in "Working in
the engine compartment" on
page 301.
Determining oil level
-Park your vehicle so that it is horizontally level.
- While at operating state temperature, briefly let the
engine run at idle and then shut it off.
- Wait approx. two minutes.
- Pull out the oil dipstick. Wipe off the oil dipstick with a
clean cloth, and slide it back in as far as it will go.
Pull it back out and read off the oil level=> fig. 239 or
=> fig.
240. Top off the engine oil, if applicable
=>
page 306.
Oil level within range @
- Do not add oil.
Oil level within range @
-You can add oil. Afterwards, the oil level should be within
range @. _,,,
Vehicle care I I irechnical data

-~_T_ ir_e_ s_ a_ n_d _ w_ h_ e_e _l_s _________________________________________________ _
& WARNING (continued)
crashes and serious personal injuries . Have worn or damaged tires
replaced immediately.
• Tires age even if they are not being used and can fail suddenly,
especially at high speeds. Tires that are more than 6 years old can
only be used in an emergency and then with special care and at
low speed.
Glossary of tire and loading terminology
Accessory weight
means the combined weight (in excess of those standard items
which may be replaced) of automatic transmission, power steering,
power brakes, power windows, power seats, radio, and heater, to
the extent that these items are available as factory-installed equip­
ment (whether installed or not).
Aspect ratio means the ratio of the height to the width of the tire in percent.
Numb ers of 55 or lower indicate a low sidewall for improved
steering response and better overall handling on dry pavement.
Bead
means the part of the tire that is made of steel wires, wrapped or reinforced by ply cords and that is shaped to fit the rim.
Bead separation means a breakdown of the bond between components in the bead.
Cord
means the strands forming the plies in the tire.
& WARNING (continued)
• Never mount used tires on your vehicle if you are not sure of
their "previous history." Old used tires may have been damaged
even though the damage cannot be seen that can lead to sudden
tire failure and loss of vehicle control.
• If you notice unusual vibration or if the vehicle pulls to one side
when driving, always stop as soon as it is safe to do so and check
the wheels and tires for damage . •
Cold tire inflation pressure
means the tire pressure recommended by the vehicle manufacturer
for a tire of a designated size that has not been driven for more than
a couple of miles (kilometers) at low speeds in the three hour period
before the tire pressure is measured or adjusted .
Curb weight means the weight of a motor vehicle with standard equipment
including the maximum capacity of fuel, oil, and coolant, air condi­
tioning and additional weight of optional equipment.
Extra load tire
means a tire designed to operate at higher loads and at higher infla ­
tion pressures than the corresponding standard tire . Extra load tires
my be identified as "XL",
"xi", "EXTRA LOAD", or "RF" on the side ­
wall.
Gross Axle Weight Rating ("GAWR")
means the load-carrying capacity of a single axle system, measured
at the tire -ground interfaces .
Gross Vehicle Weight Rating ("GVWR"l
means the maximum total loaded weight of the vehicle.

Tires and wheels -
----------------
•
& WARNING (continu ed )
• The driver is respon sible for the correct tire pres sures for all
tire s on the vehicle . The applicable pre ssure values are located on
a sticker on the driver 's side B-pillar .
• Only when all tires on the veh icle are filled to the correct pre s­
sure , the tire pressure monitoring system can work correctly .
• The use of incorre ct t ire pressure values can lead to a ccidents
or other damage. Therefore it is essential that the driver observe
the specified tire pressure values for the tires and the correct pre s­
sures for the function of the tire pressure monitor ing system.
• Always inflate tires to the recommended and corre ct tire pres ­
sure before driving off.
• Driving with underinflated tires bend more , letting them get
too hot resulting in tread separation, sudden tire failure and loss
of control.
• Excessive speed and /overloading can cause heat build-up ,
sudden tire failure and loss of control.
• If the tire pre ssure is too low or too high, the tires will wear
prematurely and the vehicle will not handle well .
• If the tire is not flat and you do not have to change a wheel
immed iately , drive at reduced speed to the nearest service stat ion
to check the tire pres sure and add air as required.
0 Note
Dr iving w ithout valve s tem caps can cause damage to the t ire
valves . To prevent this, a lways make sure that factory installed valve
stem caps on a ll whee ls are securely mounted o n the va lve.
For the sake of the environment
Unde rin fla ted tires will a lso increase the f uel c onsump tion .•
Tires and vehicle load limits
There are limits to the amount of load or weight that any vehic le and
any t ir e can carry. A veh icle that is overloaded w il l not handle wel l
and is more difficu lt to stop. Overloading can not only lead to loss
o f veh ic le control, but ca n also damage impor ta nt parts of the
vehic le and can lead to sudden tire failure, inc luding a blowout and
sudde n defla tion that can cause the vehic le to crash .
Your sa fety and that o f your passen gers also depends on mak ing
sure that load limits are not e xceeded. Vehicle load includes every ­
body and everythi ng in and on the veh ic le. T hese load lim its a re
technica lly referred to as the vehicle's
Gross Vehi cle We ight Rating
(" GVWR") .
T he "GVWR" includes the weight of the basic vehic le, all factory
insta lled acces so ries, a ful l ta nk of fuel, oil, coolant an d othe r flui ds
p lus maximum load. The maximum load inc ludes the number o f
p asse ngers that the vehicle is inte nded t o carry ("sea ting capacity")
w ith an assu med we ight o f 150 l bs (68 kg) fo r each passe nger at a
designated seating position and the total weight of any luggage in
t he vehicle. If you tow a trailer, the we ig ht o f the tra iler h itch an d th e
tongue weight of the loaded trailer must be included as part of the
ve hicle l oad.
The
Gross Axle Weight Rating !"GAWR") is t he maximum load that
can be applied a t each of the vehicle's two ax les.
The Gross Veh icle Weig ht Rating and t he G ross Axle Weig ht Rat ing
are listed on the safety comp liance sticker labe l located on the
d river 's s ide B -pi llar . Y o ur Au di h as 5 s eating positi ons, 2 i n the fro nt
and 3 in the rear for total seating capacity of 5 . Each seating position
has a safe ty bel t~
page 205, "Safe ty belts".
The fact that th ere is an upper limit to your vehicle's Gross Vehicle
Weight Rating means that the total weight of whatever is being
carried in the vehic le (includ ing the we ight of a trai ler hitch and the
tong ue weight of the loaded trai ler) is limited. The more passengers
i n the v ehicle or pass engers wh o are heavie r than t he sta nd ard
we ights assumed mean that less weight can be ca rried as luggage . .,_
Vehicle care I t •