lock AUDI A6 2011 Owners Manual

Fuel supply and filling your fuel tank
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 fo r
winter or summer driving. During seasonal change-over, we suggest
that you fill up at busy gas stat ions where the seasonal adjustment is
more likely to be made in time.
0 Note
• Methano l fuels which do not meet these requirements may cause
corrosion and damage to plastic and rubber components in the fue l
system .
• Do not use fuels that fail to meet the specified criteria in this
chapter .
• If you are unab le to determine whether or not a particu lar fuel
blend meets the spec ifications, ask your serv ice 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 Aud i and are not covered under the New Vehicle or the Em is­
sion Control System Warranties.
• If you experience a loss of fuel economy or driveab ility and perfor­
mance 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 gaso line g rades contain
substances that can cause deposits to collect on v ital engine parts,
such as fuel injectors and intake valves. A lthough most gasoline
brands include additives to keep eng ine 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 officia l
webs ite (www.toptiergas.com).
After an extended period of using inadequate fuels, carbon deposit
build-ups can rob your engine of peak performance.
0 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 277.
You can find the fue l tank capacity of your vehicle in
Technical Data
~page 343.
The label on the inside of the fuel filler flap tells you the correct fuel
for your ve hicle. For more information about fuel specifications, see
~page 273.
Your vehicle fuel tank has an on-board refue lling vapor recovery
system. This feature helps to prevent fuel vapors from escaping from
the tank and polluting the environment wh ile you refuel your veh icle . ..,_

In order to fill the tank properly while protecting the environment,
please follow this refueling procedure carefully.
& WARNING
Under normal operating conditions, never carry additional fuel
containers in your car. Gas canisters and other containers used to
transport fuel can be dangerous. Such containers, full or empty,
may leak and could cause a fire in a collision. If you must transport
fuel to use for your lawn mower, snow blower, etc., be very careful
and always observe local and state laws regarding the use, trans­
portation and storage of such fuel containers. Make certain the
container meets industry standards (ANSI /ASTM F852 -86).
0 Note
Never drive your vehicle until the fuel tank is completely empty . The
irregular supply of fuel can cause misfiring. Gasoline could enter the
exhaust system and damage the catalytic converter. •
Refuelling
The fuel filler flap is unlocked from a button in the
driver's door.
Fig . 202 Driver's
door: Unlock ing fuel
filler flap
Vehicle OP-eration
Fuel supply and filling your fuel tank
Fig. 203 Fuel cap
hooked on the opened
f uel filler flap
When adding fuel , the ignition and any cellular phones in the
vehicle must be switched
off.
Taking the fuel cap off
- To open the fuel filler flap, press the button~ fig. 202.
- Unscrew fuel filler cap counter-clockwise and hang it on
the fuel filler flap~ fig . 203.
Refuelling procedure
- Insert the fue l nozzle from the gasoline pump into the
fuel filler neck as far as it will go.
- Select a medium refuelling rate so that the nozzle
switches off automatically when the tank is full.
Putting the fuel cap back on
- After filling your tank, twist the fuel filler cap clockwise
until you hear a definite click .
- Close the fuel filler flap.
To avo id fuel spi lling or evaporating from the fuel tank always close
fuel filler cap properly and completely . An improperly closed fuel
filler cap may also cause the MIL lamp~
page 23 to come on. ._.
Vehicle care Do-it-yourselt service iTechnical data

Unlocking the fuel filler flap by hand
You can open the fuel filler flap by hand if the power
locking system should fail .
-Remove the right-side trim panel.
- Take out the vehicle jack.
Fi g. 20 4 L uggage
compar tment: Emer ·
gency open ing o f fue l
f iller flap
- Pull the loop down in the direction of the arrow to unlock
the fuel filler flap~ fig. 204. •
Vehicle OP-eration
Fu el supp ly and filling your fuel t ank
Vehicle care Do-it-yourselt service iTechnical data

___________________________________________ C..:...._ h:....:e :....:c:..:. k.::..: i..:.. n .:..:g:!:....:: a....:. n..:.. d~ f:....:. i.:..ll :.:.i:....:n :.:g !....- __
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.
Safety first
& 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 Technical data

___________________________________________ C_ h_e _c_ k_ i_ n -=g=-- a_ n_ d_ f_ i_ll _i_n -=g "-- _lffllll
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

___ C_ h_ e_c _k _i _ n _g ~ a_n _d_ f_il _l_in _ g _________________________________________ _
& WARNING (conti nu ed )
- Prote ct your face , hand s and arms from escaping fluid and
steam by covering the cap with a larg e, thick rag .
- Turn the cap slowly and ver y carefully in a counter-clockwise
direction while applying l ight, downward pre ssure on the top
of the cap.
- To avoid being burned, do not spill ant ifreeze or coolant on
the e xhaust system or hot engine parts. Under certain condi­
tions, the ethylene glycol in engine coolant can catch fire .
• Antifreeze is poisonous. Always store antifreeze in its original
container and well out of the reach of children .
• If you drain the coolant, it mu st be caught and safely stored in
a proper container clearly marked "poison ".
0 Note
• Coolant pollutes the environme nt and could cause an eng ine fire.
Excess coo lant w ill be forced o ut throug h the pressure re lie f va lve in
the cap when the eng ine becomes hot .
• If , in an emergency, only wate r can be ad ded, the co rrect ratio
between water and antifreeze=.-
page 286 must be restored as soon
as possib le .
~ For the sake of the environment
Dra ined coolan t should no t be reused. A lways dispose of used coolant
w hile observ ing a ll enviro nmental regula tions .•
Radiator fan
The radiat or fa n sw itches on aut oma ticall y by itself .
The radiato r fa n is d rive n by t he eng ine v ia the V-bel t. T he viscous
cl utch regu lates the speed of t he fan according to the tempe rature of
the coolant . An auxiliary e
lectric rad iator fan* sw itches on and off depend ing o n
c oo lant tempe rature and other vehicle o per at ing condi tions.
After you sw itch the eng ine off, the aux iliary fa n can con tinue running
for up to 10 m inutes -even w it h the ignition off. It ca n even switch on
agai n later by itse lf ::::.- & , if
• the tempera ture of the engine coolant rises due to the heat build­
up fro m the eng ine in the eng ine comp artme nt, or
• the engine compartment heats up because the vehicle is par ked in
in tense s unligh t.
& WARNING
• To reduce the risk of personal injury never touch the radiator
fan .
• The auxiliary electric fan is temperature controlled and can
switch on suddenly even when the engine is not running .
• The auxiliary radiator fan switches on automatically when the
engine coolant reaches a certain temperature and will continue to
run until the coolant temperature drops .•

-L~C~ h~ e~c ~k :..!_i ~ n ~g ~ a~n ~d~ f~il ~l~in ~ g[_ ________________________________________ _
0 Note
Brake fluid will damage the paint of your vehicle.
Because of the problem of proper disposal of brake fluid as well as
the special tools required and the necessary expertise, we recom­
mend that you have the brake fluid changed by your authorized Audi
dealer. •
Battery
General information
Under normal operating condit ions, the battery in your Aud i does not
need any maintenance. With
high outside temperatures or long daily
drives we recommend that you have the electrolyte level checked by
a service facility. The electrolyte level should also be checked each
time the battery is charged~
page 292.
Have the battery checked when you take your vehicle in for service.
You are well advised to replace a battery that is older than 5 years.
With certain types of a irbag deployment, the battery is disconnected
from the vehicle electrical system for safety reasons=>
& in "Repair,
care and disposal of the airbags" on
page 211.
Disconnecting the battery terminals
Some vehicle functions (power window regulators, for example) are
lost if the battery terminals are disconnected. These functions have
to be relearned after the battery terminals are connected aga in. To
prevent this, the battery should only be disconnected from the
vehicle electrical system when absolutely necessary for repairs.
Vehicles not driven for long periods
If you do not drive your veh icle over a period of severa l days or weeks,
electrical components are gradually cut back or switched off. This
reduces energy consumption and maintains starting capability over a
longer period~
page 249.
Take into consideration that when you unlock your vehicle, some
convenience functions, such as the master key remote function or
power seat adjustment, may not be available. The convenience func­
tions will be available again when you turn on the ign ition and start
the engine.
Winter operation
During the winter months, battery capacity tends to decrease as
temperatures drop. This is because more power is also consumed
while starting, and the headlights, rear window defogger, etc., are used more often .
Avoid unnecessary power consumpt ion, particu larly in city traffic or
when traveling only short distances. Let your authorized Audi dealer
check the capacity of the vehicle battery before w inter sets in
=> page 292. A well charged battery will not only prevent starting
problems when the weather is cold, but will also last longe r.
(I] Tips
If your veh icle is left standing for several weeks at extreme ly low
temperatures, the vehicle battery should be removed and stored
where it will not freeze. This will prevent it from being damaged and
having to be replaced.•

-~_T_ i_ re _ s_ a_n _ d_ w_ h _e_ e_ls _________________________________________________ _
in. WARNING
• Incorrect tire pressures and /or underinflation can lead to a
s eriou s or fatal a ccident .
• Incor rect tire p ressu res and /or underinflation cause increased
tire wear and can affect the handling of the vehicle .
• Incorrect tire pressu res and /or underinflation can also lead to
s udden tire failur e, including a blowout and sudden deflation,
caus ing loss of vehicle cont rol. •
Checking tire pressure
The correct tire pressure for the tires ori ginally installed
on your vehicle is listed on the tire pressure la bel located
on driv er's side 8-pillar.
Th e recommended tire pressures a re on the tire press ure labe l and in
t he table~ page 299, "Cold tire infla tion pressure" . This means that
the pressure m ust be checked an d adju sted when the tire has not
bee n dr iven for more than a co uple of miles (kilometers) at low
speeds dur ing the previous three hours. Air in the tires expands w hen
the tire heats up as a resul t of inte rna l fr iction as it flexes in use. The
tire press ure is higher when the t ire has warmed up than when it is
"cold."
It is the inflation press ure i n a "cold" t ire that counts . Therefore, you
should never let air out of a warm tire to match "Co ld tire inflat ion
pressure" recommendat ions~
page 299 . The t ires would t hen be
underinflated and co uld fail sudden ly .
T he tire p ress ure label on your Audi lists the recommended co ld tire
inflation pressures for the new, or iginal equipment t ires that were on
your vehicle at t he time i t was man ufa cture d. For the location of t he
label~
page 299 , fig. 216.
Most tires lose a ir nat urally over time. They can a lso lose some a ir if
you d rive over a pot hole or hi t a curb while pa rking .
It is usua lly not possible to see whether the rad
ia l tires used today are underinflated
jus t by loo king at th em.
T herefore, be sure to check t ire pressures a t least once a month and
always before go ing on a long trip. Make sure to take the number of
peop le and the amoun t of lugg age i nto a ccount whe n ad justi ng tire
pressure for a trip -even one that you would not consider to be
" lo ng." See ~
page 303, "Ti res and vehicle lo ad lim its" fo r mo re
important informat ion.
Always use an accurate t ire pressure ga uge when check ing and
ad justing i nflat io n pressures . Check all of the tires and be sure not to
forget the s pare tire . If the press ure in any ti re is too hig h when the
t ire is "co ld," let ai r out of t he tire slowly with t he edge of the ti re
gauge and keep checki ng the press ure unt il yo u reach the press ure
that is co rrect for the load (p assenge rs a nd luggage) a nd kind of
driving yo u plan to do.
If the press ure in any t ire is too low , no te the difference between t he
pressure in the cold tire and the pressure you need and add the a ir
t ha t you need to reac h the co rrect pressure fo r the vehi cle load
(passengers a nd luggage) fo r the tires o n yo ur vehicle as listed on the
on your vehicle and in this man ual and the k ind of driving yo u plan to
do .
Never exceed the ma ximum inflation pressure listed on the tire
s idewall for any reason .
Remember that the vehicle manufacturer, not the t ire manufacturer,
determines the cor rec t tire p ress ure for the tires on your ve hicle.
It is important to chec k the tire pressu re whe n the t ires a re co ld.
• Read the required t ire pressure from the t ire pressure label. The
ti re press ure la bel is located on t he dr iver's s ide 8 -pilla r.
• Turn t he va lve stem cap counte r-clockw ise to remove it from th e
t ire v alve .
• Place the air press ure gauge on the valve.
• Th e tire press ures s houl d only be ch ecked and adjus ted whe n the
tires are cold. The slightly raised pressures of warm ti res must not be
re du ced.
~

-~_T_ i_ re _ s_ a_n _ d_ w_ h _e_ e_ ls _________________________________________________ _
& WARNING (conti nu ed )
• Alway s use tire s, rim s and wheel bolts that meet the specifica­
tions of original factory-installed tires or other combinat ions that
have been specifically approved by the vehicle manufacturer .
• Tires age even if they are not being used and can fail suddenly,
especially at high speed s. Tires that are more than 6 years old can
only be used in an emergency and then with special care and at
lower speeds.
• Never mount used tir es on your vehicle if you are not sure of
their "previous history. " Old used t ires m ay have been damaged
even though the damage cannot be seen that can lead to sudden
tire failure and loss of vehicle control.
• All four wheels must be fitted with radial tires of the same
type , size (rolling circumference) and the same tread pattern .
Driving with different tire s reduces vehicle handling and can lead
to a loss of control.
• If the spare tire is not the same as the tires that are mounted
on the vehicle - for example w ith winter tires - only use the spare
tire for a short period of time and drive with extra care. Refit the
normal road wheel as soon as safely possible.
• Never drive fa ster than the maximum speed for which the tires
on your vehicle are rated because ti re s that are driven faster than
their rated speed can fail suddenly.
• Overloading tire s cause heat build-up, sudden tire failure,
including a blowout and sudden deflation and loss of control.
• Temperature grades apply to tires that are properl y inflated
and not over or underinflated.
• For technical reasons it is not always possible to u se wheels
from other veh icles- in some cases not even wheels from the same
vehicle model.
• If you install wheel tr im discs on the vehicle wheels , make sure
that the air flow to the brakes i s not blocked . Reduced airflow to
the brakes can them to overheat, increasing stopping distances
and cau sing a collision.
& W ARNING (continued )
• Run flat ti res may only be used on vehicles that were equipped
with them at the factory. The vehicle must have a chassi s designed
fo r run flat tires. Inco rrect use of run flat tires can lead to vehicle
damage or accidents. Che ck with an author ized Audi dealer or tire
specialist to see if your vehicle can be equipped with run flat tires .
If run flat tire s are u sed, they must be installed on all four wheels.
M ixing t ire types is not permitted.
0 Note
• For tech nica l reasons, it is not generally poss ible to use the wheel
r ims from o ther veh icles . T his ca n hold t rue for w heels of the same
veh icle type.
• If the sp are tire is different fr om the tires t hat yo u have mo unted
on your vehicle (for example w inter t ires or wide profile tires), then
use the s pare tire for a shor t perio d of tim e on ly and drive wi th ext ra
care. Replace t he flat tire w ith the tire matching the others on your
vehicle as soon as possible.
• Never dr ive witho ut the valve stem cap . The valves could get
damage d.
~ For the sake of the environment
Dispose of old t ires in accor dance with the loca l req uiremen ts .•
Uniform tire quality grading
• Tr ead we ar
• Tract ion AA A B C
• T emperat ure A B C
Quality g rades can be fo und where applicable on the tire s ide wall
between t re ad sho ulder and m aximum se ct io n w idth =>
page 30 7,
fig.220 . ~

Ill Tires and wheels
-------------------
Winter tires lose their effectiveness when the tread is worn down to
a d epth o f 0. 157 inch ( 4 mm).
Only drive w it h w inte r tir es under w inte r co nd it io ns. S u mmer t ires
hand le better w hen there is no s now or ice on t he roads a nd the
t em pe ra ture i s above 4 5
°F (7 ° ( ).
If you have a flat tire, see notes on spare wheel~ page 307.
Please always remember that winter tires may have a lower speed
rating than t he t ires originally installed on yo ur ve hicle at the time it
was ma nufact ured . Please see~
page 309, "Speed rat ing ( letter
c ode)" fo r a listing of the speed rating le tte r codes a nd t he maximu m
speed at which the tires can be dr ive n.
Th e spee d rat ing le tt er code( ~
page 298 ) is on the side w all of the
t ire~
page 307 .
& WARNING
Winter tires have ma ximum speed limits that may be lower than
your vehicle's maximum speed. Always know the maximum speed
before driving off. Never drive faster than the speed perm itted fo r
your specific winter tires . This will cause damage to the tire s
leading to an accident and serious personal injury to you and your
passengers.
& WARNING
Driving faster than the maximum speed for which the winter tires
on your vehicle were des igned can cause ti re failure includ ing a
blowout and sudden deflation, lo ss of control, crashes and serious
personal injuries . Have worn or damaged tires replaced immedi­
ately.
• Winter t ires have maximum speed rat ing that may be lower
than your vehicle's maximum speed .
• Never drive faster than the speed for which the winter or other
tires installed on your vehicle are rated.
& WARNING
Always adjust your driving to the road and traffic conditions.
Never let the good acceleration of the winter tires and all-wheel
drive tempt you into taking extra risks. Always remember :
• When braking , an all-wheel drive vehicle handles in the same
way as a front drive vehicle .
• Drive carefully and reduce your speed on icy and slippery roads,
even winter tires cannot help under black ice conditions.
Use s ummer tires when weather co ndit io ns permit. They are qu ieter,
do not wear as quickly and reduce fuel consum ption .•
Snow chains
Snow chains may be fit te d on ly to the fr ont w heels, and only to
certain t ire sizes . Ask yo ur aut horized Audi dealer on which tire sizes
snow chains can be used .
If you are go ing to use snow c ha ins, then you must insta ll th em on t he
front wheels at least .
Th e sn ow chain s mus t have low-pr ofile li nks and m ust no t be th icker
than 0 .53 inc h (13.5 mm), including the lock.
R emove wheel cente r covers an d trim discs before putti ng snow
chains on your vehicle~
0. For safety reaso ns cove r caps m ust the n
be fitted over the whee l bo lts. These are availab le from a utho rized
Audi dealers.
& WARNING
Using the wrong snow chains for your veh icle or installing them
incorrectly can incre ase the risk of loss of control leading to
serious personal injury .
~