2009 AUDI S6 air condition

Airbag syst em -----------------=~-
When a person is detected on the front passenger seat, weighing
more than the to tal weight of a child t hat is about 1 year old
restrained in one of the rear-facing or forward -facing infant
restraints (listed in Federa l Motor Vehicle Safety Standard
208 with
which the Advanced Airbag System in your vehicle was certified), the front airbag on the passenger side may or may not deploy .
The
PA SSENGER AIR BAG OFF light comes on when the e lectronic
control unit detects a total weight on the front passenger seat that
requires the front a irbag to be turned off . If the
PA SSENGER AIR BAG
O FF
light does not come on, the front airbag on the passenger side
has not been tu rned off by the contro l u nit and can dep loy if the
control unit senses an impact that meets the conditions stored in its
memory .
I f the total weight on the front passenger seat is more than that o f
a typical
1 year -old, but less than the we ight of a small adult, the
front airbag on the passenger side may dep loy (the
PA SS ENGER AIR
BAG OFF
l ight does not come on).
For example , the airbag may deploy if :
• a small ch ild that is heavier than a typ ical 1 year-o ld child is on
the front passenger seat (regardless of whether the child is in one
of the child sa fety seats listed ~
page 240),
• a child who has outgrown child res traints is on the front
passenger seat.
I f the front passenger airbag is turned off, the
PASSENGER AIR BAG
O FF
light in the cen ter of the instrument panel wi ll co me on and stay
on .
T he front airbag on the passenge r side may
not deploy (the
PAS SEN GER AIR BAG OFF light does not illuminate and stay lit) if:
• a small adult or teenager is on the front passenger seat
• a passenger who is not sitting upright with their back against a
non -reclined backrest with their feet on the vehicle floor in front of
the seat is on the front passenger seat.
I f the front passenger airbag dep loys, the Federal Standard requires
the airbag t o meet the "low risk" deployment criteria to help reduce
Controls and equip­
ment Safety first Vehicle operation
the risk of injury through interaction with the airbag
. "Low risk"
dep loyment occurs in those crashes that ta ke place at l ower decel ­
erations as defined in the electronic contro l unit .~
page 226
Al way s remembe r:
Even though your vehicle is equipped with
Advanced Airbags, the safes t place for chi ldren is properly
restrained on the back seat. Please be sure to read the important
informat ion in t he sections tha t follow a nd be sure to heed a ll of the
WARNINGS.
& WARNING
To reduce the risk of injury when an airbag inflates , always wear
s afety belts prope rly.
• If you are unrestrained , leaning forward , sitt ing s ideways or out
of position in any w ay, your risk of injury i s mu ch higher .
• You will al so receive se riou s injurie s and could even be killed if
you are up against the airbag or too clo se t o it when it inflate s -
even with an Advanced Airbag=>
page 215 .
& WARNING
A child in a rearward -facing child safety seat in stalled on the front
pa ssenge r seat will be ser iou sly injured and can be killed if the
front airb ag inflate s -even with an Advanced Airbag System .
• Although the Advan ced Airbag S ystem in your vehicle is
de signed to turn off the front airbag when a rearward -fa cing child
restraint h as been in stalled on the front pa ssenger seat , nobod y
c an ab solutely guarantee that deployment i s impo ssible in all
c onceivable situations that may happen during the useful life of
your vehicle .
• The inflating airbag will hit the ch ild s afety seat or inf ant
c arrier with great force and will smash the chi ld safety seat and
c hild ag ain st the ba ckre st, center a rm re st, door , or roof .
• Alway s in stall rearward -facing child re straint s on the b ack
seat .
Vehicle care Do-it-yourself service Technical data

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& WARN ING (continued )
• Never recline the front passenger' s seat to transport obje cts.
Item s can als o move into the area of the side airbag or the front
airbag during br aki ng or in a sudden maneuver . Objects near the
airbags can become projectiles and cause injury , particularly when
the seat is re clined .
& WARNING
The fine dust created when airbags deploy can cause breathing
problems for people with a histo ry of asthma or other breathing
c onditions.
• To reduce the ri sk of breathing p roblems , tho se with asthma or
other respiratory conditions should get fresh air right away by
getting out of the veh icle or opening windows or door s.
• If you are in a collision in which airbags deploy , wash your
hands and face w ith mild soap and water before eat ing.
• Be careful not to get the dust into your eyes, or into any cuts or
s crat ches .
• If the residue should get into your eyes , flush them with
water .•
Monitoring the Advanced Airbag
System
Airbag monitoring indicator light t:Ji
Two sepa ra te indi cator s mon itor t he function of the
Advanc ed A irba g Sy stem: th e ai rbag moni to rin g in dicator
ligh t and the
PASSENGER AIR BAG OFF light .
The Advanced Airbag System (including the electronic control unit,
sensor c ircuits and system w irin g) is mon itored continuously to
make su re that it is functioning proper ly whenever the ignition is on. E
ach time you turn on the ignition, the airbag monitoring indicator
li ght
I wi ll c om e on fo r a few sec onds (sel f diag nos tics).
The system must be inspected when the indicator light ~:
• does not come on when the ignition is switched on,
• does not go out a few seconds a fter you have switched on the
ignition, or
• comes on w hile driving.
I f an airbag system malfunction is detected, the indicator light will
fir st star t fl ashin g to catc h the drive r's at tention an d then stay o n
continuously to serve as a constant reminder to have the system
ins pec te d imm edi ately.
I f a malfunction occurs t hat turns the front airbag on the passenger
side off, the PASSENGER AIR BAG OFF light will come on and stay on
whenever the ignition is on.
& WARNING
An airbag system that is not functioning properly cannot provide
supplemental protection in a front al crash.
• If the a irbag indicator light comes on , it means that there may
be something wrong with the Advanced Airbag System. It is
possible that the airbag will inflate when it is not supposed to , or
will not inflate when it should.
• Have the airbag system inspected immediately by your Audi
dealer. •

__________________________________________________ A_ i_ r _b _a...; g::- s_ y=--- s_t _e _m __ lll
PASSENGER AIR BAG OFF light
Fig. 21 3 S ectio n from
th e in str ume nt pane l:
PA SS ENGER AIR B AG
O FF light
The PA SS ENGER AIR BAG OFF light is located in the center of the
instrument pane l
~ fig. 213.
The
PA SSENGER AIR BAG OFF light wil l come on and stay on to te ll
you when the front Advanced Airbag on the passenger side has been turned off by the electron ic control unit. Each time you turn on
the ign it ion, the
PA SSEN GER AIR BA G OFF light wi ll flash for a few
seconds and:
• will stay on if the front passenger seat is not occupied,
• will stay on if there is a small child or chi ld restraint on the front
passenge r seat,
• will go out if the front passenger seat is occupied by an adult as
registered by the we ight-sensing mat .
T he
PA SS ENGER AIR BAG OFF light mu st come on and stay on if the
ign ition is on and
• a car bed has been insta lled on the front seat, or
• a rearward -f acing chi ld restraint has been installed on the front
passenger seat, or
• a forwa rd-facing child restra int has been installed on the front
passenger seat, or
• t he we ight registered on the front passenger seat is equa l to or
less than the combined weight of a typica l 1 year -old restrained in
Controls and equip­
ment Safety first
Vehicle operation
one of the rear-facing or forward -facing infant restraints listed in
Federa l Motor Veh icle Safe ty S tandard 208 with which the Advanced
Airbag System in your vehicle was certified.
I f the front passenger seat is not occupied, the front airbag will not
deploy, and the
PA SS ENGER AIR BAG OFF light will stay on . Never
insta ll a rearward -facing child restraint on the front passenger seat,
the sa fest place for a child in any kind of child restraint is at one of
the seating positions on the rear seat~
page 217, "Child restraints
on the front seat -so me important things to know" and~
page 238,
"Chi ld Safety" .
If the PASSENGER AIR BAG OFF light com es on when one of the
conditions listed above is met, be sure to check the light regu lar ly
to make certa in that the
PA SS ENGER AIR BAG OFF light stays on
continuously whenever the ignition is on. If the
PA SSENGER AIR
BAG OFF
light does not appear on and does not stay on all the time,
stop as soon as it is safe to do so and
• reactivate the system by turning the ignition off and then turning
it on aga in;
• remove and reinstall the child restraint. Make sure that the child
restrain t is proper ly installed and t hat the safety be lt for the front
passenger seat has been correctly routed through the child restraint
as described in the chi ld restraint manufacturer's instructions;
• make sure that the convertible locking feature on the safety belt
for the front passenger sea t has been activated a nd that the safety
belt has been pulled tight . The belt must not be loose or have loops
of slack so that the sensor be low t he safety belt latch on the sea t can
do its job
~ page 248.
• make su re that things that may inc rease the we ight of the child
and child safety seat are not being transported on the front
passenger seat;
• make sure that the safety belt tension sensor is not blocked.
Shake the safety belt latch on the front passenger seat back and
forth;
• I f a strap or te ther is being used to tie the child sa fety seat to the
front passenger seat, make sure that it is not so tight that it causes .,
Vehicle care Do-it-yourself service Technical data

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Intelligent technology
Notice about data recorded by
vehicle control modu les
Your vehicle is not equipped with an Event Data Recorder (EDR),
installed by some manufacturers for the express purpose of
capturing data for retrieval after an accident or crash event . EDR's
are sometimes called "crash recorders" .
Some state laws restrict the retrieva l or downloading of data stored
by EDR's that were insta lled in a vehicle for the express purpose of
retrieving data after an accident or crash event without the owner's
consent.
Although your vehicle is not equipped with an EDR, it is equipped
with a number of electronic control modules for various vehicle systems such as, for example, engine function, emission control, as
well as for the airbags and safety belts.
These electronic control modules also record vehicle-related data during norma l vehicle operation for diagnost ic and repair purposes .
The recording capacity of the electronic control modules is limited
to data (no sound is recorded) and only a small amount of data is
actually recorded over a very limited period of time and stored when
a system fault or other condition is sensed by a control unit. Some
of the data then stored may relate to vehicle speed, direction, braking as well as restraint system use and performance in the
event of a crash or other condition . Stored data can only be read and
down loaded with special equipment .•
Electron ic Stabilizat ion Program (ESP)
General =nformation
The ESP improves the vehicle stability.
(
Fi g. 232 C ente r
co nso le w it h ES P
swi tch
ESP is designed to he lp you maintain vehic le control in situations
where the car approaches the limits of "grip", especia lly when
accelerating and cornering. ESP reduces the risk of skidding and
improves stabil ity under all road conditions .
T he system operates across the entire speed range in combination
with the ABS system. If the Anti-Lock Brake System (ABS) malfunc­
tions, the ESP wil l also shut down .
How th e sys te m w ork s
The Anti -Lock Brake System (ABS) , Electronic Differential Lock (EDU
and the Anti-Slip Regulation System (ASR) are integrated in the e lec­
tronic stabi lization program . In addition to the data provided by
these functions, the ESP control unit requires additional measure­ ment data provided by high performance sensors . The rotational
speed of the vehic le about its vertical axis, vehicle acce leration in
the fore-and-aft and lateral directions, the brake pressure and the steering angle are al l measured .

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& WARNING
• You should perform braking maneu vers for the purpose of
cleaning the brake system only if road conditions permit . Other
road u sers mu st not be put at r isk -you may cause an a ccident!
• Before des cending a steep grade, reduce speed and shift trans ­
mission into a lower gear or lower dr iving range . Do not ride the
brakes or hold the pedal down too long or too often. This could
cause the brake s to get hot and diminish braking effi ciency .
• Do not "ride the brakes " by resting your foot on the pedal when
you do not intend to b rake. This may cause the br ake s to ove rheat ,
premature wear and increased stopping distance.
• Under ce rtain climat ic and operating condit ions such as
passing through water , driving in heavy rain or after washing the
vehi cle , the effectiveness of the brakes can be reduced . In winter ,
ice can a ccumulate on the brake pads , linings , discs and drums .
Carefully apply bra kes fo r a test . Brakes will dry and ice coatings
will be cleaned off after a few careful brake appli cations .
• Driving for an extended period of time on salt -co vered roads
without using your brakes can also affect braking effic iency. Clean
off accumulated salt coating from brake dis cs and pads with a few
c areful brake applications .
• If you damage the front spoile r, or if you install a different
spoiler, be sure the air flow to the front brakes is not ob structed.
Otherw ise the brake sy stem could overheat reducing the effective­
ness of the entire brake system .
• Failure of one bra ke cir cuit will impair the braking capability
resulting in an increased stopping distance. Avoid driving the
veh icle and have it to wed to the nearest Audi dealer or qualified
workshop . -..
Brake booster
T he b rake boost er ad ds extra b ra king powe r.
The brake booster works with vacuum pressure which is created
o nly w he n t he e ngine is ru nnin g=> & .
& WARNING
• Never let the vehicle roll to a stop with the engine shut off.
• If the brake booster is not working, for example when towing
your vehicle, or because the brake boo ster has somehow been
damaged , the brake pedal must be pressed considerably harder to
make up for the lack of booster assistance . •
Functioning of A!"lt"-Lock Brake System (ABS)
ABS p revents the wheels from locking up unde r brakin g.
Th e ABS co ntribu tes effect ively to vehicle cont ro l since it preve nts
the whee ls from
locking when the brakes are app lied. This means
t h at the ve hicle rema ins steerable and is less l ikely to s kid.
With ABS you do not need to pump the brake . Just hold the brake
pedal down .
However, do not expec t the A BS to s hor ten bra king d istance u nder
all circumstances. When driving o n grave l or on newly fallen snow
o n t op o f icy sur faces, brak ing d istance may be ev en lon ger, the re­
fore, under these c ircumstances, it is especially important that you
driv e slow ly an d with gre at ca re.
How the ABS system works
An automat ic c heck is made w hen a speed o f abou t 4 mph (6 km/hl
is reached. When this happens, a pumping noise can be heard.
I f a n in div id ual wheel begins to rotate too slowly in rela tion t o
vehic le speed and tends to lock, the ABS automatically reduces
b rake p ress ure to preven t tha t w hee l from lo cking.

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one half. Never drive faster than the posted speed limit and weather
conditions permit. •
Reducing unnecessary =citing
Even when your car is just idling it burns up fuel.
- Shut the eng ine off when you are not driving the vehicle .
- Do not warm up the vehicle by letting the engine run at
idle.
It makes sense to shut off the engine in traffic jams, when waiting
for trains to pass at rai lroad crossings , or at traffic lights that have
long waits on red. Turning the engine off for just 30 -40 seconds
saves more fuel than is burned starting the engine again .
It takes a long time for the engine to warm up fu lly when it is
running at idle. However, wear and noxious emissions are especially
high when the engine is warming up. So you should drive away as
soon as you start the engine and avoid running at high rpms while
the engine is still warming up.
0 Note
Do not leave engine idling unattended after starting . If warning
lights should come on to indicate improper operation, they would
go unheeded. Extended idling also produces heat, which could result in overheating or other damage to the vehicle or other
property .•
Regu1ar ma1--.tenance
A badly tuned engine unnecessarily wastes a lot of fuel.
-Have your vehic le serviced at regular intervals .
By having your vehicle regularly serviced by an Audi dealer helps to
ensure that it runs properly and economically. The condition of your
vehic le not only affects its safety and abi lity to hold its value, it also
affects
fuel con sumpt ion.
C hec k your o il e ach time you fill your t ank.
The amount of oil used is related to engine load and speed.
It is norma l for the oil consumption of a new engine to reach its
lowest va lue after a certain mileage has been driven.
You must drive your vehicle about 3,000 miles (5,000 kilometers) before you can properly assess oil consumption .
This also applies to fuel consumption and engine output .
0 Note
• Have your vehicle maintained properly and in accordance with
the service recommendations in your Warranty
& Maintenance
booklet. Lack of proper ma intenance as well as improper use of the
vehic le wi ll impair the function of the emission control system and
cou ld lead to damage.
• Do not alter or remove any component of the Emission Control
System unless approved by the manufacturer.
• Do not alter or remove any device, such as heat shields,
switches, ignition wires, valves, which are designed to protect your
vehicle's Em ission Control System and other important vehicle
components .•
Fewer short tr ips
Fuel consumption will always be relatively high on short
trips.
- Try to avoid driving short dista nces wi th a cold engine. _,

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Speed
The higher the speed, the more difficult it becomes for the driver to
control the rig. Do not drive at the maximum permissible speed. Reduce your speed even more if load, weather or wind conditions
are unfavorable -particularly when going downhi ll.
Reduce vehicle speed
im med ia tel y if the trailer shows the slightest
sign of swaying.
Do not try to s top the swayi ng by accelerating.
Observe speed limits. In some areas, speeds for vehicles towing
trai lers are lower than for regular vehicles .
Always apply brakes ear ly. When driving downhill, shift into a lower
gear to use the engine braking effect to slow the vehicle. Use of the
brakes a lone can cause them to overheat and fail.
C ool ant t emp era tur e
The coolant temperature gauge=> page 12 must be observed care­
fully. If the needle moves close to the upper end of the scale, reduce
speed immed iately and/or turn off the air conditioner.
If the coolant temperature warning light in the instrument cluster
starts flashing
- F- , pull off the road, stop and let the engine idle for
about two minutes to prevent heat build-up.
& WARNING
A nyo ne n ot properly re str aine d in a moving vehi cle i s at a mu ch
g re ater ri sk in an accident . Never let any on e r ide in y our car who
is n ot pr operl y wea ring th e re stra ints pr ovided b y Audi . •
Trailer towing tips
Important to know
Your vehicle handles differently when towing a trailer because of
the additional weight and different weight distribution. Safety, performance and economy will greatly depend on how carefully you
l
oad your trailer and operate your r ig.
Before you actually tow your trailer, practice turning, stopping and
backing up in an area away from traffic . Keep practicing unti l you
have become comp letely familiar with the way your vehicle-trai ler
combination behaves and responds.
Back ing up is difficult and requires practice. Backing up with a
trailer generally requires steering action opposite to that when backing up your vehic le without a tra iler.
Ma intain a greater distance between your veh ic le and the one in
front of you . You will need more room to stop. To compensate for
the trai ler, you w ill need a larger than norma l turning radius.
When passing, remember that you cannot accelerate as fast as you nor mally wou ld because of the added load . Make su re you have
enough room to pass. After passing, allow plenty of room for your
trai ler befo re changing lanes again .
Avoid jerky starts, sharp turns or rapid lane changes.
[ i ] T ips
• Do not tow a trailer during the break -in period of your vehicle.
• I f you tow a trailer, your Audi may require more frequent main te­
nance due to the extra load=>
page 372. •
Parking on a slope
Do n ot park on a slope with a trailer. If it cann ot be
avoi ded, do so only after d oing the followi ng:
When p arking :
-Apply the foot brake.
- Have someone p lace chocks under both the vehicle and
the trailer wheels. ._

___ C_ le_ a _ n_i_n ~g _ a_ n_ d __ p_r _o _t _e _c_ t_ i_o _n ___________________________________________ _
Cleaning and protection
General information
Regular care preserves vehicle value.
Any automobile is exposed to industrial fumes, corrosive road salt,
muddy dog feet, etc . A well cared for Audi can look like new many
years a fter purchase. Regu lar a nd correct ca re will co ntribu te to
maintaining the beauty and value of your Audi.
Furthermore, good care may be a condition for substantiating a
war ranty claim should co rros ion damage or paint defect s occur .
Your authorized Audi dealer has a variety of dedicated vehicle- care
product s
and can adv ise whic h ones to use for clea ning the e xter ior
and interior of your vehicle.
Whethe r you use p roducts recommended by Audi or other c ommer ­
cia lly availab le cleaning agents , please make sure you apply them
correctly.
& WARNING
• Cleaning agents may be poisonous. Keep them out of the reach
of ch ildren .
• Heed all caution label s.
• Always read directions on the contai ner before using any
product. Follow the di rection s carefully .
• Most chemical cleaners are concentrated and have to be
d iluted.
• Use spot removing fluids only in well ventilated area s.
• Do not use gasoline , kerosene , die sel fuel , nail polish remover
or other volatile fluids . They may be toxic , flammable or hazardous
in other way s. Do not wash , wa x or dry the vehicle w ith the igni ­
tion on or the engine running.
& WARNING (continued )
• Do not clean the under side s of chassis , fenders , wheel cove rs,
etc . without protecting your hands and arms. You may cut yourself
on sharp -edg ed metal parts .
• Moisture and ice on brakes may impair braking effi ciency
=> page 265 , "General info rmation ". Test the brake s carefully each
time you wa sh the vehicle.
~ For the sake of the environment
Se lect only enviro nmenta lly friend ly c leaning products . Leftover
clean ing products should not disposed of in the household waste. •
Care of exterior
Washing
Frequen t washing pro tects the vehi cle.
Th e bes t protection against envi ronmental influences is frequent
washing and waxing . How often this is required depends on:
• Ho w much the vehic le is used
• Where the vehic le is parked (garage, in the open under trees,
etc.)
• T he seasonal and weather conditions
• Environmenta l influences
T he longer bird droppings, insects, tree resin, road and industrial
gri me, tar, soot, road salt and ot her materials rema in on the ve hicle
body, the more lasting their destruc tive effects will be . High temper ­
atu res caused by exp osu re to in tense s un ligh t inte nsify the c orro -
sive effect, particularly when humidity is high as well.
~