2011 AUDI A6 warning light

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The best way to remove snow from w indows and mirrors is to use a
br ush . Use a non- abra sive
plastic ice scraper -better st ill, a spray
deicer -to remove
ice from w indows and mirro rs .
T he windows must not be cleaned with insect remover o r wax since
t hese ca n interfere w it h the func tion of the w indshie ld wipe r blades
(chatte r).
O il, g re ase o r silicone resi due c an be remove d with
glass cleaner or
silicone remover. However, wax residue requires the use of a specially
formulated solvent . Please contact your A udi dea ler for advice on safe
prod ucts for wax removal.
Wi ndows s hou ld also be cleaned on the inside at regu lar intervals .
N ever dry wi ndow s w ith t he same ch amo is tha t you use to dry pain ted
surfaces. Wax res idue o n the c hamois ca n impa ir vis ion t hrough t he
w indows.
& WARNING
• The windshield must not be treated with water-repellent
materials. They can increase glare under poor vis ibility conditions
such as wetness, darkness, or when the sun is low on the horizon .
In addit ion, they can cause the windshield wipe rs to chatter.
• Always read and heed all WARNINGS and other information
~page 260.
0 Note
• N ever use warm or hot water to remove snow and ice from
w indows and mir rors . This cou ld c au se the glass to c rac k.
• To prevent damage to the wires of the rear defogger, do not place
a ny adhesive stick ers on the inside of the re ar window ove r the wires .
• T o help prevent dirt from scratching the window, a lways scra pe in
a fo rwa rd direction -pu shing t he s crape r away fro m you -neve r back
and fort h.•
Safety first
Weatherstrips
C om pl ete c ar c are inc ludes the weat her strips as well .
- Ap ply a sui tab le ru bb er co nditio ner to t he we athers tri ps
from time to time .
To be able sea l pro pe rly, the weat hers tr ips arou nd the hood, doo rs,
rear lid, etc. m ust remain pliable. Spray the weathe rst rips with sili­
con e or coat them wit h talcu m p owder or glyce rine t o reta in the flex­
ibility of the rubber and to protect them against freezing in t he
wi nter.
& WARNING
Always read and heed all WARNINGS and other information
~ page 260.
[I) Tips
Keep silicone sprays off the winds hie ld to avoid wiper smear in ra in. •
Cast (light) alloy wheels
Cast (light) all oy wheels requir e sp ecial c are.
- Wash the whe els wi th a spo nge or h ose bru sh ev er y othe r
w ee k.
- Fo r deep cleaning afterwar ds, use on ly a dedi cated
acid­
free cas t all oy whe el cleaner.
- R ub a coat of
liquid wax onto the r ims eve ry three month .
B e su re to reac h an d trea t all parts o f the rim.
To preserve the dec orative appearance of the cast alloy whee ls , some
s pecial care is necessa ry . In add ition to road dirt and s alt , bra ke du st
is a lso corrosive . If left on for too long, brake dust can cause pitt ing . ..,_
Vehicle care Technical data

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Use only special acid-free cleaners formulated for a lloy r ims . Sa fe
pro ducts are availabl e at your A udi de aler. Never leave t he cle aner on
the rims longe r tha n spec ified on the label. If not rinsed off promptly,
the ac id contained in some cleaners can attack the t hreads on the
w heel bolts.
Never use abrasive or metal po lish ing cleaning agents.
If the protec ­
t ive coa ting ha s been ch ipped, e.g. by k icked up road dirt, touch it up
as soon as possible.
& WARNING
• Moisture and ice on brakes may affect braking efficiency
=> page 245, "General information ". Test the brakes carefully
each time you wash the vehicle.
• Always read and heed all WARNINGS and other information
=:>page 260 . •
Body cavity sealing
The body cavity sealing does not need to be checked .
All body cavit ies which cou ld be affected by corrosion have been thor ­
oughly p rotected at the factory .
Th is sea ling does not require any inspection or additiona l treatment.
If any wax sho uld seep ou t of the cavi ty when the ambien t tempera ­
ture is h igh, it can be removed w it h a plastic scraper and a suitable
so lvent .
& WARNING
Solvents can be dangerous.
• Benzine is flammable and toxic. If you use benzine for
removing the wa x, keep sparks, flame and lighted cigarettes
away. Never dump benzine on the ground, into open st reams or
down sewag e drains.
& WARNING (co ntinued )
• Be su re to observe all safety and environmental regulations.
Follow all instructions on the container.
• Always read and heed all WARNINGS and other information
=:>page 260 . •
Chassis
Hav e the undercoa ting checked fo r damage f rom time to
ti me.
The lower body shell of your Audi is a lso thoroughly protected against
c orrosion .
Any damage to the u nde rcoat ing caused by road ha za rds sho uld be
repaire d promptly.
& WARNING
Too mu ch undercoating in the wrong places can caus e a fire.
• Do not apply additional undercoating or rustp roofing on or
near the exhau st manifold , exhaust pipes, catalytic converter or
heat shields. While dr iving, the substance used for undercoating
c ould overheat and cau se a fire.
• Always read and heed all WARNINGS and other info rmation
=:>page 260 . •
E x haust tail pipes
Road s alt and ot her c orrosive mater ials w ill damage the m ate rial in
the exhaust ta il pipes if they a re not cleaned regularly. Do not clean
t he t ail pipes w ith w heel cleaner, p aint polish, chrome po lish or o ther
abrasive cleaners. C lean the tail pipes with car care products that are
sui table for sta inless s teel.
~

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Your authorized Audi dealer can provide cleaning products that have
bee n tested and approved for your veh icle. •
Care of interior
MMI display
- Clean the MMI display with a soft clean cloth and an LCD
cleaner .
The MMI display can be cleaned with a professionally available "LCD
cleaner". The cloth should be slightly dampened with the cleaning
fluid to clean the d isp lay .
0 Not e
To avoid scratching the MMI display, you should never clean it dry. •
MMI control console
- First clean the MMI control console with a brush to
remove dust from the housing.
- Then wipe the MMI control console with a clean, soft,
slightly damp cloth.
T he MM I control console sho uld be cleaned w ith a brush first so that
no dirt is trapped between the buttons and the housing. We recom­
mend g iving the MMI contro l conso le a final w ipe with a cloth mois t­
ened w ith water and dish washing detergent.
0 Note
To prevent damage, make sure that no fluid ever gets into the MMI
control console .•
Safety first
Aluminum trim
Use only neut ral-pH products to remove spots and deposits from
al uminum surfaces. Ch rome care prod ucts and al kaline cleaners w ill
attack aluminum surfaces and can damage them over t ime .
& WARNING
Alw ay s re ad and heed all WARNING S and other information
~ page 2 60. •
Fabrics and fabric coverings
Fabrics and fabr ic coverings (e .g . seats, door trim panels, etc.) should
be clean ed at regular interva ls with a vacuum cl eaner . T his removes
surfa ce di rt pa rt icl es which co uld become embedded in the fabr ic
through use . Steam cleaners should not be used, because the steam
tends to push the d irt deeper into the f abric and lock it there.
Norm al clean ing
Genera lly, we recommend using a soft sponge or a li nt-free
microfiber cloth to the clean fabric. Brushes should on ly be used for
ca rpets and floor mats , since other fab ric surfaces could be ha rmed
by brushes.
No rma l sur face sta ins can be cleaned us ing a commercially avai lab le
foam cleaner. Spread the foam on the surface of the fabr ic with a soft
sponge and work it in gently . Do not saturate the fabric. Then pat the
foam dry using absorbent , dry cloths (e .g. microfiber cloth) and
vacuum it after it has dried comp letely.
Clean ing stains
Sta ins caused by beverages (e .g. coffee, fruit juice, etc.) can be
treated with a mild detergent solut ion. Apply the detergent solut ion
with a sponge . In the case of stubborn stains, a detergent paste can
be applied directly to the stai n and worked into the fabric . After­
wards, use copious amounts of clean water to remove the remaining .,.
Vehicle care Technical data

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Cleaning spots
- Remove fresh water-based spots (such as coffee, tea,
juices, b loo d) with a n absorben t cloth o r paper towel.
- R emove fresh
grease or oil-based spots (such as butter,
mayonnaise, chocolate) with an absorbent cloth or paper
towel, or use the clea ner from the leather care kit i f the
spot has not yet penetrated into t he s urface of the
leather.
- Use an oil/grease d isso lv ing spray, if
oil /grease spots
have dried on .
-Remove spec ific kinds of spots (ballpoint pen, felt marker,
fingernai l polish , water-based paint, shoe polish, etc .)
with a spo t remover specifica lly formulated for leather.
Leather care
- Ever y hal f year us e an ap proved leat her car e prod uct
(avai lable fr om you r A udi dea ler) to care f or th e le ather.
- Ap ply t he produ ct very spari ngly .
- W ipe it off with a da mp cloth.
If yo u have any quest ions about cleaning and caring for the leathe r in
your ve hicl e, i t is best to con tact you r au thor ized Audi dealer, who w ill
be glad to help yo u and tell you about our fu ll range of leather care
prod ucts, such as:
• Leathe r cleaning and ca re k it
• Creams to ca re for colo red leather
• Spot removers for ba llpoint pens, shoe polish, etc .
• Oil/g rease disso lv in g sp ray
• New and upcoming pro ducts.
& WARNING
Always read and heed all WARNINGS and other information
:=> page 260 .
0 Note
• N ever use chemical so lvents (e.g. lighte r fluid, turpentine), waxes,
shoe po lish or simi lar p roducts on the leathe r surfaces in your Aud i.
• T o avo id d amage, have st ubbor n st ains remove d by a commerc ial
cleaning specialist. •
Applie s to v eh icl es: with Alca ntara up hols ter y
Cleaning Alcantara ® (synthetic suede)
Removing dust and dirt
- Mois t en a clot h, squeez e out excess wat er a nd wipe down
the sea t surfaces .
Removing stains
-Mois te n a c loth wi th lukewarm water or wi th diluted ethyl
(rubbing) alcohol.
- Dab at t he stai n. S tart at the outside a nd wor k inwar ds.
- Once the sta in is no longer v isib le, use a soft dry cloth or
tissue to soak up t he m oisture .
Do not use leather cleanin g products on Alcantara.
You may use a s uit able sha m poo fo r remov ing dust and d irt.
Dust and grit i n the pores and seams ca n scratch and damage the
s u rface . If th e car is lef t stan ding in the s un for long periods, the
Alcan ta ra should be p rotected aga inst direct su nlight to preve nt i t
from fading . Slig ht co lor var iat ions wi ll deve lop in no rma l use and are
not a n in dicat ion of material dete rioration. .,_

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Checking and filling
Engine hood
Releasing the engine hood
The engine hood is released from inside the vehicle.
-Open the driver's door.
Fig. 205 Driver's side
footwell: engine hood
release lever
- Pull the release lever on the left under the instrument
panel => fig. 205 in the direction of the arrow.
The hood pops up slightly under spring pressure. •
Opening the engine hood
Fig. 206 Release lever
under the engine hood
Before opening the engine hood, make sure that the wind­
shield wipers are flat against the windshield. Otherwise, they
could damage the paint on the hood.
Pull up on the release under the hood=> fig. 206. This
releases the catch =>
&.
- Open the hood all the way.
& WARNING
Hot engine coolant can burn you.
• 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. •

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& WARNING (continued )
-Always use extreme caution to prevent clothing, jewelry, or
long hair from getting caught in the radiator fan, V-belts 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 emission and chemical hazards=:>
/1::..
& WARNING
California Proposition 65 Warning:
• Engine exhaust, some of its constituents, and certain vehicle
components contain 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 vehicles and certain products
of component wear contain or emit chemicals known to the State
of California to cause cancer and birth defects or other reproduc­
tive harm.
• Battery posts, terminals and related accessories contain lead
and lead compounds, chemicals known to the State of California
to cause cancer and reproductive harms. Wash hands after
handling.
0 Note
W hen a dding fluids, a lways make sure that t hey are poured into the
pro per conta in er or filler op ening, oth erwise serious damag e to
vehicle systems w ill occur.
ci> For the sake of the environment
To detect lea ks i n time, ins pect t he vehicle floor pan from un derneath
re gu lar ly. If yo u s ee spots from oil or o ther vehicle f luids, have your
vehicle inspected by an authorized Aud i dea ler. •
Engine compartment
These are th e most importa nt it ems that you can ch eck .
Fig. 207 Typic al layout for container s, engine oil dip st ic k an d eng ine o il fill er
cap
©
@
®
©
®
J u mp start co nnector( +) u nder a cover,(-) w ith hex head
screw . .... . .. .... .. .. .. . ...... ......... . .. .. 292, 332
B rake fluid reservoi r ( ) . . . . . . . . . . . . . . . . . . . . . . . . 289
C oolant expa nsion tank
(J -) . . . . . . . . . . . . . . . . . . . . . 28 6
E ngin e oil fi ller cap
('1::r. ) . .... ....... ...... .... . .
Engine oil dipstick (o range) .................. ... .
© Powe r stee ring reservoir .................... ... . 284
2 83
2 4 7
294 ..
(j) Winds hiel d/head light washer conta iner ( O ) ....... .

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Changing the engine oil
The engine oil and oil fi lter must be changed according to the mileage
(kilometers) and t ime intervals specified in your vehicle 's Warranty
&
Maintenance booklet . Do not exceed these interva ls -harmful
deposits from o ld engine oil can reduce engine performance and can
lead to expensive engine repairs .
Changing the oil at the recommended intervals is so very impo rtant
because the lubricating properties of o il decrease gradually during
normal vehicle use. If you are not sure when you have your oil
changed, ask your author ized Audi Service Adv isor .
Under some circumstances the engine oil should even be changed
mo re frequently. Change oil more often if you drive mostly short
distances, operate the vehicle in dusty areas or mostly under stop­
and-go traffic conditions, or when you use your vehicle where temper­
atures stay be low freezing point for long periods.
Detergent addit ives in the oi l wi ll make fresh oil look dark after the
engine has been running for a short t ime. This is normal and is not a
reason to change the oil more often than recommended .
Damage or malfunctions due to lack of maintenance
It is essential that you change your oil at the recommended intervals
using only engine oi l that complies with Audi oil standard
VW 502 00. Your Limited New Vehicle War ranty does not cover
damage or malfunctions due to fai lure to follow recommended main­
tenance and use requirements as set forth in the Audi Owner 's
Manual and Warranty
& Maintenance booklet. Your dealer will have
to deny warranty coverage unless you present to the dealer proof in
the form of Serv ice or Repair Orders that all scheduled maintenance
was performed in a time ly manner. •
Engine oil consumption
The engine in your vehicle depends on an adequate
amount of oil to lubricate and cool all of its moving parts.
In order to provide effective lubrication and cooling of internal
eng ine components, all inte rnal combustion engines consume a
certain amount of oil. Oil consumption varies from engine to engine
and may change sign ifican tly over the lif e of the engine. Typically,
engines with a specified break- in period (see~
page 251) consume
more oil during the break-in period than they consume after oil
consumption has stab ilized .
Under normal conditions, the rate of oil consumption depends on the
quality and viscosity of the oil, the RPM (revolutions per minute) at
which the engine is operated, the ambient temperature and road
conditions. Further factors are the amount of oil dilution from water
condensation or fuel residue and the ox idation level of the oil. As any
eng ine is subject to wear as mileage builds up, the oil consumption
may increase over time until replacement of worn components may
become necessary.
With all these variab les coming into play, no standard rate of oil
consumption can be established or specified . There is no alternative
to regular and frequent checking of the oil level , see
Note .
If the yellow engine oil leve l warning symbol in the instrument
cl uster lights up, you should chec k the oil level as soon as possible
with the oil dipstick~ page 283. Top off the oil at your earliest
convenience ~
page 284.
& WARNING
Before you check anything in the engine compartment, always
read and heed all WARNINGS~
& in "Working in the engine
compartment" on
page 279.

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Before you c hec k anythi ng in the engine compartment,
alwa ys r ead and heed all WARNINGS==> & in "Working in
the engine compartment" on
page 279.
- Turn off the ignition.
- Read the engine coolant level from the coolant expansion
tank==>
page 286, fig. 211. With a cold engine, the
coolant level should be between the "min" and "max"
markings . When the engine is wa rm, the level may be
sligh tly above the "max" marking .
The locat io n of the coolant expansion tank can be seen in the engine
compartment ill ustration ~
page 280.
To obta in an accurate reading, the engine must be sw itched off.
The expans ion tank in your vehicle is equ ipped with an electric coolant
level sensor .
When the coolan t level
is too low, the warn ing light i n th e Au to-Che ck
System ~
page 2 7 will blink until you add coo lant and the level has
bee n restored to normal. Even though the re is an elect ric coolan t
level sensor, we still recommend you check the coolant leve l from
time to time .
Coolant loss
Coolant loss may ind icate a leak in the cooling system. I n the even t of
coo lant loss, the cooling system should be inspected immed iately by
yo ur au tho rized A ud i dea le r.
It is not enough mere ly to add coolant.
In a
s ealed system, losses can occur only if the bo iling point of the
coo lant is exceeded as a resu lt of overheating .
0 Note
Do not add any type of radiator leak sealant to your vehicle's engine
coo lant. Add ing radiator repa ir fluid may adverse ly affect the func­
tion and performance of your cooling system and could result in
damage not covered by your New Vehicle Limited Warra nty. •
Safety first
Adding coolant
Be very careful when adding engine coolant.
B efore you check a nything in t he engine compartment,
always read and heed all WARNINGS==> & in "Working in
the engine compartment" on
page 279.
- Turn off the engine.
- Let the engine cool down .
- Place a th ick rag over the coolant expansion tank
==>
page 286 , fig. 2 11 and carefully twist t he cap counter­
clockw ise ==>& .
- Add coolant .
- Twist the cap on again
tightly .
Replacement eng ine coolant must conform to exact spec ifications
~ page 286, "Coolant". Even in an emergency, if coolant additive
G 12++, G12+ or G12 is not available, do
not use a different addi tive .
Use plain water instead until you can get the correct additive and can
restore the correc t ratio. This should be done as soon as possible.
If you have lost a considerable amount of coolant, then you should
add co ld antifreeze and cold water only when the eng ine is co ld .
Always use
new engine coo lant w hen refilling.
Do not fill coolant above the "MAX" mark. Excess coolant will be
forced ou t th rough the p ress ure relief v alve in the cap when the
engine becomes hot .
& WARNING
• The cooling sy stem i s under pres su re and can get very hot.
Reduc e the ri sk of scalding from hot coolant by following the se
steps.
-Tu rn off the engine and allow it to co ol down . _,.
Vehicle care Technical data