2009 AUDI S6 warning light

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T he best way to remove snow from windows and mirrors is to use a
brush . Use a non -abrasive
pla stic ice scraper -better still, a spray
deicer -to remove
ice from w indows and mirrors .
The windows must not be cleaned with insect remover or wax since
these can inter fere with the function of the w inds hie ld w iper blades
(chatter).
Oil, grease o r sil icone residue can be removed with
glass cleaner or
s ilicone remover . However, wax residue requires the use of a
spec ially for mulated solvent . Please contact your Audi dealer for
advice on safe products for wax removal.
Windows should also be c leaned on the inside at regular interva ls .
Never dry windows with the same chamois that you use to dry
painted surfaces . Wax residue on the chamois can impair vision
t hrough the windows.
& WARNING
• The windshield mu st not be treated with water -repellent mate ­
rials. They c an incre ase gl are under poor v isibility conditions such
a s wetne ss, darkne ss, or when the sun i s low on the hori zon. In
addition , they can cause the wind shield wipers to chatter .
• Alway s read and heed all WARNINGS and other information
~ page 282.
0 Note
• Never use warm or hot water to remove snow and ice from
windows a nd mirrors . This cou ld cause the glass to crack.
• T o prevent damage to the wires of the rear defogger, do not p lace
any adhesive stickers on the inside of the rear window over the
wires .
• T o he lp prevent dirt from scratching the window, always scrape
in a forward direction -pushing the scraper away from you -never
back and forth. •
Weatherstrips
Complete car car e includes the we atherst rip s as well .
App ly a suitable rubbe r con ditioner to the weatherstr ips
f ro m time to tim e.
To be able sea l properly, the weatherstrips around the hood, doors,
rear lid, etc . must remain pliable. Spray the weatherstrips with sili­
co ne or coat them w ith ta lcum powder or glycer ine to retain the
f lexibility of the rubber and to protect them against freezing in the
winte r.
& WARNING
Always read and heed all WARNINGS and other information
~ page 282.
[ i ] Tip s
Keep si licone sprays off the windshield to avoid wiper smear in
ra in .•
Cast (light) alloy wheels
Cast (light) alloy wheels require special care.
- Was h the wheels w ith a sponge or hose b rus h every
other week.
Fo r de ep cle aning af terwar ds, use only a dedicat ed
acid­
free cast al lo y whee l c leaner.
R ub a co at of
liquid wax onto t he rims ever y thr ee mo nth .
Be su re t o r ea ch and t reat a ll pa rts of t he r im.
To preserve the decorative appearance of the cas t al loy wheels,
some special care is necessary . In addition to road dirt and salt,
Vehicle care I t •

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brake dust is also corrosive. If left on for too long, brake dust can
cause pitting.
Use on ly specia l
acid-free cleaners formulated for a lloy r ims . Safe
products are available at your Audi dealer. Never leave the cleaner
on the ri ms longer than specified on the label. If not rinsed of f
promptly, the acid contained in some c leaners can attack the
threads o n the wheel bo lts .
Never use abrasive or metal po lishing c leaning agents. If the protec ­
tive coating has been chipped, e.g . by kicked up road dirt, touch i t
up as soon as poss ible .
& WARNING
• Moisture and i ce on b rake s may affe ct b raking effi cien cy
~ page 26 5, "General information ". Te st the brake s carefully ea ch
t ime you wa sh the vehi cle .
• Always read and heed all WARNINGS and other information
~ pag e 282. •
Body cavity sealing
T he body cavity sealing does not nee d to be checked .
All body cavities which could be affected by corrosion have been
t horoughly pr otected a t the factory .
This sealing does not require any inspection or additional treat ­
ment . If any wax should seep out of the cavity when the ambient
temperature is high, it can be removed with a plastic scraper and a suitable solvent .
& WARNING
Solvents can be dangerous.
• Ben zine is fla mmab le and to xic . If you use be nzine fo r removing
the wax , keep sparks, f lame and lighted cigarettes away . Never
& W ARN ING (continued )
dump benz ine on the ground , into open streams or down sewage
dra in s.
• Be sure to observe all safety and env ironmental regulat ions .
Follow all in struction s on the cont ainer .
• Alway s read and heed all WARNINGS and other inform ation
~ page 282 .•
Chassis
Have the u nderc oating c hecked for dama ge from tim e to
time.
T he lower body shell of your Audi is also thoroughly protected
aga inst corrosion .
Any damage to the undercoat ing caused by road hazards shou ld be
repaired promptly.
& WARNING
Too much undercoating in the wrong place s can cau se a fire .
• Do not app ly addition al und ercoating or rustproofing on or
near the exhaust manifold , exhau st pipe s, catalytic converter or
he at shield s. While dr iving , the sub stance used for underco ating
could overhe at and cau se a fire .
• Alwa ys read and heed all WARNINGS and other info rm ation
=> page282 .•

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Care of interior
MMI display
- Clean th e MMI display with a soft c lean cloth and an LCD
cl eane r.
The MM I disp lay can be cleaned with a professional ly available "LCD
cleaner". The cloth should be s lightly dampened with the c leaning
fluid to clean the display.
0 Note
T o avoid scra tching the MMI display, you should never c lean it dry .•
MMI terminal
- First clean the MMI terminal with a brush to remove dust
from the housing.
- T hen wipe the MMI terminal wit h a clea n, soft, s lig htly
damp cloth .
The MMI terminal shou ld be c leaned with a brush first so that no
dirt is trapped between the buttons and the housing. We recom­
mend giving the MM I terminal a final wipe with a c loth moistened
with water and dish washing dete rgent.
0 Note
To prevent damage, make sure that no flu id ever gets into the M MI
terminal. •
Aluminum trim
Use only neutral-pH products to remove spots and deposits from
a lum inum surfaces . C hro me care products an d alka line cleaners
wi ll attack aluminum surfaces and can damage them over time.
& WARNING
Always read and heed all WARNINGS and other information
~ page 282 .•
Fabrics and fabric coverings
Fabrics and fabric coverings (e.g . seats, door trim panels, etc.l
shou ld be c leaned at regular intervals with a vacuum cleaner . This
re moves surface dirt partic les which could become embedded in
the fabric through use. Steam cleaners shou ld not be used, because
t he steam tends to push the d irt deeper into the fabric and lock it
there.
Normal cl eaning
Genera lly, we recommend using a soft sponge or a lint -free
microf iber c loth to the clean fabric . Brushes should on ly be used for
carpets and floor mats, since other fabric surfaces could be harmed
by brushes.
Norma l surface stains can be cleaned using a commercially avail ­
able foam cleaner. Spread the foam on the surface of the fabric with
a soft sponge and work it in gent ly. Do not saturate the fabric . Then
pat the foam dry using absorbent, d ry cloths (e.g. microfiber cloth)
and vacuum it a fter it has dried completely .
Cleaning stains
Stains caused by beverages (e.g. coffee, fruit juice, etc.) can be
treated with a mild detergent so lution . Apply the detergent so lution
with a sponge. In the case of stubborn stains, a detergent paste can be applied direct ly to the stain and worked into the fabric. After -.,.
Vehicle care I t •

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Cleaning spots
- Remove fresh water-based spots (such as coffee, tea,
juices, blood) with an absorbent cloth or paper towel.
- Remove fresh
grease or oil-based spots (such as butter,
mayonnaise, chocolate) with an absorbent cloth or paper
towel, or use the cleaner from the leather care kit if the
spot has not yet penetrated into the surface of the
leather.
- Use an oil/grease dissolving spray, if
oil/grease spots
have dried on.
- Remove specific kinds of spots (ballpoint pen, felt
marker, fingernail polish, water-based paint, shoe polish,
etc.) with a spot remover specifically formulated for leather.
Leather care
- Every half year use an approved leather care product
(available from your Audi dealer) to care for the leather.
- Apply the product very sparingly.
- Wipe it off with a damp cloth.
If you have any questions about cleaning and caring for the leather
in your vehicle, it is best to contact your authorized Audi dealer, who
will be glad to help you and tell you about our full range of leather
care products, such as:
• Leather cleaning and care kit
• Creams to care for colored leather
• Spot removers for ballpoint pens, shoe polish, etc .
• Oil/grease dissolving spray
• New and upcoming products.
& WARNING
Always read and heed all WARNINGS and other information
=> page 282.
0 Note
• Never use chemical solvents (e.g. lighter fluid, turpentine),
waxes, shoe polish or similar products on the leather surfaces in
your Audi.
• To avoid damage, have stubborn stains removed by a commer­
cial cleaning specialist. •
Applies to ve hicle s : with A lc a nt ara up ho lst ery
Cleaning Alcantara ® (synthetic suede)
Removing dust and dirt
- Moisten a cloth, squeeze out excess water and wipe down
the seat surfaces.
Removing stains
- Moisten a cloth with lukewarm water or with diluted
ethyl (rubbing) alcohol.
- Dab at the stain. Start at the outside and work inwards.
- Once the stain is no longer visible, use a soft dry cloth or
tissue to soak up the moisture.
Do not use leather cleaning products on Alcantara .
You may use a suitable shampoo for removing dust and dirt.
Dust and grit in the pores and seams can scratch and damage the
surface . If the car is left standing in the sun for long periods , the
Alcantara should be protected against direct sunlight to prevent it .,.

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from fading. Slight color variations will develop in normal use and
are not an indication of material deterioration.
0 Note
• Never use chemical solvents (e.g. lighter fluid, turpentine),
waxes, shoe polish or similar products on Alcantara ® surfaces.
• To avoid damage, have stubborn stains removed by a commer­
cial cleaning specialist.
• Do not use brushes, stiff sponges or similarly abrasive cleaning
aids .•
Safety belts
Only well-maintained safety belts work reliably when
needed.
- Keep belts clean.
- For cleaning, use a mild soap and water solution . Let
belts dry thoroughly and away from direct sunlight .
- Do not allow inertia reel safety belts to retract before
they are completely dry.
- Check the condition of your safety belts
regularly.
Heavily soiled safety belts may not retract properly.
& WARNING
Damaged safety belts can break in a crash.
• Anything that might damage your safety belts could mean that
you and your passengers would not be adequately protected in an
accident.
• Safety belt performance depends on correct installation. Never
remove belts from the vehicle to clean them.
& WARNING (continued)
• Do not use chemical cleaning agents, bleach or dyes. They have
corrosive properties which weaken the webbing.
• When cleaning your safety belts, inspect them for damage. If
you discover damage, see your Audi dealer.
• Always read and heed all WARNINGS and other information
~ page282. a
Engine compartment
Be especially careful when cleaning the engine compart­
ment.
Always switch off the ignition before cleaning the engine ~ &.
Plenum panel
Remove leaves from the plenum panel in front of the windshield
under the engine hood. This prevents the water drain holes from
becoming blocked, and it prevents debris from entering the vehicle
interior through the heating and ventilation ducts.
Corrosion protection
The engine compartment and transmission have been corrosion­
protected at the factory.
Good anti -corrosion treatment is very important, particularly in the
winter. If the vehicle is frequently driven on salt treated roads, the
entire engine compartment and plenum panel should be thor­
oughly cleaned at the end of winter and retreated to prevent salt
damage. At the same time, the underside of the vehicle should be
washed as well.
If the engine compartment is cleaned at any time with grease
removing solutions
2 l, or if you have the engine washed, the anti­
corrosion treatment is almost always removed as well. It is therefore .,_
21 Use only th e correct cleaning solut ions. N ev er use gasolin e or di ese l fu el.
Vehicle care I t •

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& WARNING (continued )
-Always u se extreme caution to prevent cloth ing , jewelry, or
long hair from getting caught in the radiator fan , V-belt s or
other moving parts , or from contacting hot parts . Tie back hair
before starting , and do not wear clothing that will hang or
droop into the engine .
• Minimize exposure to emis sion and chemical hazards
::::> & .
& WARNING
California Proposition 65 W arn ing :
• Engine exhaust , some of its constituents , and certain vehicle
c omponents cont ain or emit chemicals known to the State of Cali­
fornia to cause cancer and birth defects and reproductive harm. In addition , certain fluids contained in vehi cles and certa in products
of component wear contain or emit chemicals known to the State
of California to cause cancer and birth defect s or other reprodu c­
tive harm.
• Battery posts , terminals and related ac cessories conta in lead
and lead compounds , chemicals known to the State of California
to cause cancer and reproductive harms. Wash hands after
handling.
0 Note
When adding f luids, always make sure that they are poured into the
proper container or filler ope ning, otherwise serious damage to
vehic le systems wi ll occur.
ci> For the sake of the environment
To detect leaks in time, inspect the vehicle floor pan from under ­
n eath regu larly. If you see spots fro m oil o r o th e r v eh icle flu ids, hav e
your vehicle inspected by an author ized Audi dea ler. •
Engine compartment
These are th e m ost im porta nt items th at you can ch ec k.
Fig. 238 Typical layout for containe rs, engine oi l d ipstick and engine oil filler
cap
0 Jum p star t connector( +) under a cover,( -) w ith hex
head screw .... ... .... ..... ... .. .. ........... .. 314, 357
@ B rake fluid reservoir ( ) . . . . . . . . . . . . . . . . . . . . . . . . 3 10
© C oo lant e xpansio n tank (- L ) . . . . . . . . . . . . . . . . . . . . . . 308
© Eng in e oil fill er cap ('l=:11) . . . . . • . . . . . . • . . . • . . . . . . . 30 6
© E ng ine oil d ipstick (orange) .............. ....... .
©
0
Power steering reservoir ....................... •.
Windshield/ headlight washer container( ~) ....... . 3
0 5
267
316 ~

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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
Warranty
& Maintenance 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 Warranty
& Maintenance 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 271) 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 305. Top off the oil at your
ea rliest convenience => page 306 .
& WARNING
Before you check anything in the engine compartment , always
read and heed all WARNING S
=> & in "Working in the engine
compartment " on
page 301.

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models; 60% for Canadian models). This mixture both assures the
necessary frost protection and protects metal components in the
engine's cooling system from corrosion and scaling. It also raises
the boiling point of the coolant.
Do not reduce the concentration of the coolant in the summer by
adding plain water.
Th e pro port io n of coo la nt additi ve mu st be at
lea st 50 % but n ot mor e th an 60 %
to maintai n ant ifreeze protection
and cooling efficiency. If the coolant frost protection is too low , the
coolant could free ze and damage the veh icle heating and engine
cooling system .
For year-round driving , antifreeze is added at the factory for temper ­
atures down to:
• -31 °F ( -35 °c1 usA
• - 40 °F ( - 40 °C) Canada.
You can mix the
Gl 2+ + coolant additive with other additives (G12+
or G12). Always check w ith your authorized Audi dealer.
& WARNING
B efo re you che ck anyt hing in th e eng ine compartmen t, alway s
re ad a nd he ed all WARN ING S~
& in " Working in the engine
c ompar tm ent " on
page 30 1.
0 Not e
• Before winter sets in, have the coolant checked to see if the
coo lant additive in your vehicle is sufficient to meet the climate
conditions. This is especia lly important if you live in a region where
the winter is extremely cold . If necessary, increase the proportion of
coolant additive to 60%.
• When adding coolan t additive to your coo ling system,
remember:
-We recommend using only coolant additive
G12+ + (check the
label) for your vehicle. This coolant additive is avai lable at autho­
riz ed Audi dealers. Other types of antifreeze can significantly reduce corrosion protection. The resulting corrosion can cause a
loss of coolant and serious engine damage.
• Do not add any type of radiator leak sealant to your vehicle's
engine coolan t. Adding radiator repair fluid may adversely affect the
function and performance of your cooling system and could result
in damage not covered by your New Vehicle Limited Warranty. •
Checking the engine coolant level
The engine coolant level can be checked with a quick
glance.
F ig . 2 42 E ngin e
com partm ent : Cool ant
ex pans io n tank
Before you check anything in the engine compartment,
alw ays read and h eed all WARNINGS ~ & in "Working in
the eng ine compartment" on page 301.
- Turn off the ignition.
- Read the e ngine coo lant level from the coo lant expan -
sion tank~ fig. 242. With a cold engi ne, the coolant level
sho uld be between the "min" and "max" markings. W hen
the engine is warm, the level may be slightly above the
"max" marking .
The location of the coolant expansion tank can be seen in the
engine compartment illustration~
page 302.