check engine AUDI S6 2009 User Guide

& WARNING
• Always observe the warnings in => page 293, "Engine compart­
ment", before opening the hood and checking the brake fluid.
• Driving with low brake fluid is a safety hazard . Stop the car and
get professional assistance.
• USA models : If the BRAKE warning light and the -warning
light come on together, the rear wheels could lock up first under
hard braking . Rear wheel lock-up can cause loss of vehicle control
and an accident. Have your vehicle repaired immediately by your
authorized Audi dealer or a qualified workshop. Drive slowly and
avoid sudden, hard brake applications.
• Canada models: If the brake warning light «D> and the ABS
warning light come on together, the rear wheels could lock up first under hard braking. Rear wheel lock-up can cause loss of
vehicle control and an accident. Have your vehicle repaired imme­ diately by your authorized Audi dealer or a qualified workshop .
Drive slowly and avoid sudden, hard brake applications. •
Engine cooling system malfunction _t
A malfunction in the engine cooling system must be
repaired as soon as possible.
When the -t symbol in the display blinks, then either the
engine coolant
temperature is too high, or the coolant level
is too low. An additional driver message can also be
displayed by pressing the [
CHECK] button:
Switch off engine and check coolant level
- Pull off the road .
- Stop the vehicle.
- Turn off the engine.
Controls and equip ­
ment
Driver information display
Check coolant level ~ page 308.
-Add coolant if necessary~ page 309 .
Continue driving only after the engine coolant
warning/indicator light goes out.
Contact your authorized Audi dealer for assistance if
necessary.
If the engine coolant level is correct, then the radiator fan may be
the cause of the malfunction.
If the O warning symbol (alternator malfunction) also lights up on
the instrument panel=>
page 30, then the fan belt may be damaged.
& WARNING
• If your vehicle should break down for mechanical or other
reasons, park at a safe distance from moving traffic, turn off the
engine and turn on the hazard warning lights =>
page 67, "Emer­
gency flasher
A".
• Never open the hood if you see or hear steam or coolant
escaping from the engine compartment - you risk being scalded.
Wait until you can no longer see or hear steam or coolant escaping.
• The engine compartment of any vehicle is a dangerous area.
Before you perform any work in the engine compartment, turn of
the engine and allow it to cool. Follow the warning stickers
=>
page 293, "Engine compartment" .
0 Note
Do not continue driving if the -F-symbol illuminates. There is a
malfunction in the engine cooling system -you could damage your
engine .•
I • •

Driver information display
Engine oil pressure malfunction "t=;f':
The red engine oil pressure warning symbol requires
immediate service or repair. Driving with a low-oil-pres­
sure indication is likely to inflict severe damage to the
engine.
If the ~ symbol appears in the display and blinks, the oil
pressure is too low. An additional driver message can also
be displayed by pressing the
!CHECK] button:
Switch off engine and check oil level
Immediate actions
- Pull off the road.
- Stop the vehicle.
- Turn off the engine.
-Check the engine oil level with the dipstick=:> page 305.
Dipstick readings checks too low
-Top off oil to the proper level ::::, page 306.
Make sure that the oil pressure warning symbol~
appears no longer in the display before you start driving
again.
Dipstick reading checks OK
- If the oil pressure warning symbol~ starts flashing
again even though the engine oil level checks OK on the
dipstick,
do not continue driving and do not let the
engine run in idle.
Instead, contact your authorized Audi
dealer for assistance.
[ i] Tips
• The engine oil pressure symbol ~ is not an indicator for a low
engine oil level. Do not rely on it. Instead, check the oil level in your
engine at regular intervals, preferably each time you refuel, and
always before going on a long trip.
• The yellow oil level warning indication ,.. requires oil refill or
workshop service without delay. Do not wait until the red oil pres­
sure warning
~ starts to flash before you respond to the low oil
level warning ...... By then, your engine may already have suffered
serious damage. •
Steering malfunction i
If there is a malfunction in the electronic steering column
lock, the steering cannot be unlocked.
If the i symbol in the display blinks, there is a malfunction
in the electronic steering column lock. An additional driver
message can also be displayed by pressing the
I CHECK]
button:
Do not drive vehicle: Steering defective
-Contact your nearest authorized repair facility.
- Do
not tow your vehicle.
& WARNING
Your vehicle must not be towed in the event of a malfunction in the
electronic steering column lock because it cannot be steered due
to the locked steering. If it is towed with the steering locked, there
is the risk of an accident. •

Ignition lock malfunction ~
A malfunction in the ignition Jock must be repaired imme­diately.
If the ~ symbol in the display blinks, there is a malfunction
in the electronic ignition lock. An additional driver message
can also be displayed by press ing the [CHECK] button:
Ign iti on lock defe ctive . C ont ac t wo rkshop !
- Do not turn the engine off.
- Drive immediately to an auth orized A udi dealer to have
the malfunction corrected .
If there is a malfunction in the electronic ignition lock, the ignition
cannot be turned off . Drive immediately to an authorized Audi
dea ler to have the cause of the malfunction corrected .
On vehicles with Convenience key*, the engine should not be
switched off using the [
STOP] button because the engine cannot be
started again after the ignition is switched off. •
Yellow symbols
A yellow symbol means WARNING.
Contro ls and eq uip­
ment
Fig . 19 Dis pl ay: low
fu el le ve l wa rning
(pr io rity 2)
Dri ver inf orm atio n di spl ay
Ye llow symbols indicate a priority 2 malfunction -Warning!
When a yellow warning symbol appears,
one warning tone sounds.
A driver message appears as well to explain the malfunction in more detail. The driver warning goes out after about 5 seconds, but it can
be brought up again at any time by pressing the [ CHECK
I button .
Check the displayed function as soon as possible . If
more than one
priority 2 malfunction is detected , a ll symbols will appear one after
the other for about 2 seconds.
Yellow symbols mean:
Convenience key*
~ page 120
Key not in vehicle
USA models: ~ page25
Defective brake light
Canad a mod els: ~ page25
Defective brake light
11 Defective light bulb
~ page25
-
Light/rain sensor defective ~ page34
Windshield washer fluid ~ page34
level low
Low fuel leve l
~ page34
Battery voltage ~ page35
Worn brake pads ~ page35
IIDynamic headlight range ~ page35
control defective
-
Check engine oi l level ~ page35
~ page305 ...
Vehicle care I I irechnical data

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

Battery voltage ~
If the battery's state of charge is not in the optimal range, the
symbo l is shown in the display and the driver message
Low battery
c harge : battery will be charged wh ile dr iving
appears .
Whi le th is d river notification is displayed, you have to be p repa red
for limited starting capabi lity.
Driver message appears and goes out again
If this driver message appears after the ignition is turned on or
w hile driving and it g oes out agai n after a w hile , th e ba tte ry has
been adequately recharged.
Driver message appears and does not go out again
I f this dr iver notification appears after the ignition is turned on or
while driv ing and does n ot go out aga in, the bat tery's state of
charge is not in the optimal range. Starting capability is restricted.
H ave the ba ttery checke d by an au tho rize d Audi deale r as soon a s
poss ible .•
Worn brake pads
Brake pads!
If the wa rning light i lluminates, immediate ly contact your autho ­
rized Aud i d eal er or qualified wor kshop to have a ll brake pads
inspected. On USA models the warning light comes on together
wit h the warning light
BRAKE . Both sets of brak e pads o n an a xle must
a lways be replaced at the same time.
& WARNING
Driving with bad brakes can cause a collision and serious personal
injury.
• If the warning light • and the warning light
BRAKE11 with the
message Brake pads ! comes on in the instrument cluster display ,
Controls and equip ­
ment
Driv er information display
& W ARNING (continued )
immediately contact your author ized Audi dealer or qualified
workshop to have all brake pads checked or replaced if necessary .•
Headlight range control defective ">
l ) Headlight range control defective
If th e sy mbol ill uminates , the dyna mic headlig ht ra nge c ont rol is n o
longer working properly . Have the system checked and repa ired at
yo ur Au di d eale r.•
Engine oil level "'·
Please check oil level
When the symbol il luminates, check the engine o il leve l as soon as
possible =>
page 305. Top off the oi l at your earliest opportu nity
=>
page 306. •
Engine oil sensor defective ~,m,
Oil level! sensor defective
If the symbo l il luminates, contact your authorized Audi dealer and
h ave th e oil sensor insp ecte d. Unt il y ou hav e thi s do ne, c heck the oil
leve l each time you refue l just to be on the safe side=>
page 305. •
11 BRAKE : USA models only
I • •

Driver inf ormati on displ ay
Ap plies to vehicles : wit h en gine sp eed limitat ion
Engine speed limitation ,-;,,
l.r1 Engine speed maximum XXXX RPM
The )t symbo l illuminates when there is an engine control malfunc­
tion. The indicator light
C in the instrument cluster also illumi ­
nates . The engine speed is limited to the speed displayed in the
driver information system. Keep in mind that the engine speed will
not exceed the va lue displayed in the driver information system, for
example when downshifting.
P lease go to an authorized Audi dealer or other qua lified workshop
to have the ma lfunction repaired .•
Ap plies to vehicles: wit h A dapt ive Li ght
Adaptive Light defective t;: :
Adapti ve Li ght defect ive
When this symbol '" illuminates, it means that Adaptive Light is
defective. Go to an authorized dealership to have the head lights or
the control unit for the Adaptive Light repaired. •
Ignition lock malfunction ..,e
If the symbol in the d isplay c omes on, there is a malfunc -
tion in the e lectronic ignition lock. An additional driver
message can be displayed by press ing the [ CHECK ] button:
D efe ctiv e ignition swi tch
- Drive to an authorized service facility at your earliest
convenie nce to have the malfunction corrected .•
Windshield wipers faulty ->
. W in ds hield wi per m alfun ction
When this symbol il luminates, i t means tha t the electronics for
the windshield wipers are defective . Please go to an authorized
dea lership to have the windshield wiper system repaired .•
Speed warning system
Overview
The speed warning system helps you to keep your driving
speed below a set speed limit.
The speed warning system warns the driver if he exceeds a previ ­
ous ly stored maximum speed. A warning tone will sound as soon as
the vehicle speed exceeds th e set speed by about 3 mph (3 km/h). At
the same t ime, a warning symbol appears in the display .
The speed warning system has
t w o wa rnin g thr eshol ds that func­
tion independent ly of each other and that have somewhat different
purposes:
S peed warnin g 1
You can use speed warning 1 to set the maximum speed while you
are driving. This setting will remain in effect until you turn off the
ignition , assuming that you have not changed or reset the se tting .
The speed warning symbol
0 (USA models) /0 (Canada models) in
the warning 1 display appears when you exceed the maximum speed . It goes out when the speed falls below the stored maximum
speed .
The speed warning symbol wi ll also go out if the speed
e xce eds the
stored maximum speed by more than about 25 mph
(40 km/h) for at
leas t 1 O seconds. The stored maximum speed is deleted .
Setting speed warning 1 :::::,
page 37.

Opening and closing
Keys
Key set
© Master key w ith remo te con trol
Fig . 26 Key s et
You can centrally lock and unlock your vehicle and start the engine
with the mas ter key with remote control.
@ Valet k ey
The va let key o nly fits the lock in the driver 's door and the ignition
lock . If you have to leave the key with somebody else, you are well­
advised to turn over the va le t key only .
Be aware t hat the rear lid and glove co mpartment can be opened
from inside the vehicle using the re lease buttons . It is therefore best
to activate the valet key function to prevent unauthorized access to
the g love compartment and the luggage compartment when
someone e lse has charge of your vehic le=>
page 44.
© Emergency key
The emergency key is only for temporary use if the vehicle key
should be lost or misplaced=>& .
Controls and equip ­
ment
Opening and clo sing
Ke y repla cemen t
If you lose a key, contact your authorized Audi dealer immediately
t o have the
lost key disab led . Be sure to bring all your keys with you.
R egister ed keys
You can check to find out how many keys have been registered to
your vehicle. Therefore, when buying a used vehicle, make sure to
get al l of the remote keys belong to it .
Ca lling up the registered keys=>
page 15.
Data in the master key
During driving, service and maintenance -relevant data is continu ­
ously stored on your master key . Your Audi service adviser can read
out this data and tel l you about the work your vehicle needs. This
a lso applies to vehic les wi th C onvenience key*.
& WARNING
• Do not leave your vehi cle unattended with the key in the igni ­
tion lock . Entry b y un authorized persons could endanger you or
result in theft or damage the vehi cle . Alway s lock all doo rs and
t ak e the key .
• Do not le ave children unattended
in th e vehicl e, especially with
a ccess to vehicle key s. Ungu arded a ccess to the ke ys pr ovides
c hildren the opportunity to st art the eng ine and /or a ctivate vehicle
systems su ch as the po wer wi ndo ws etc . Unsupervi sed operat ion
of any vehi cle system b y ch ildren c an re sult in serious injury .
[ i ] Tips
• I f you open the driver's door with the key left i n the ign ition lock,
a chime will sound . T his is your reminder to remove the key and lock
the door .
I,,,
I • •

Openin g a nd clo sin g
When the chi ld safety lock is activated, the interior door opening
lever is inoperative; the door can only be opened from the outside .
In addition, the window regulator for that door is a lso inoperative
when the child safety lock is activated.
[ i ] Tips
• In order to activate the child safety lock on the left and the right
side, you have to press the two safety buttons in succession .
• Make certain that the chec k light comes on in the corresponding
safety switch when the child safe ty lock is activated .•
Convenience key
A pplies to vehicles : wi th Con venien ce key
Description
Access and vehicle operation based on: Master key
remains in driver's pocket.
The Convenience key vehicle au thorization system allows k e yless
unlocking, locking and starting of the vehicle. You on ly have to carry
the master key on your p erson .
It makes no difference whether the master key is in your jacket
pocket or in your brief case. As soon as you approach your vehicle,
the Convenience key recognizes the request fo r access, checks fo r
authori zation and enab les the fo llowing functions:
• Unlocking the vehicle:::::,
page 53.
• Locking the vehicle:::::, page 53.
• Switching on ignition and starting the engine by pressing the
[ S TA RT] button; the master key does not have to be in the ignition
switch :::::,
page 118.
& WARNING
• When you lock your vehi cle fr om o uts ide , nobod y -espe ciall y
children -should remain in side the vehicle. Remember , when you
l o ck th e ve hicle from the out side the windo ws ca nnot be opened
from the in side .
• When you lea ve the vehi cle , al ways re m ov e the ign ition key and
take it with you. Thi s will prevent pa ss enger s (children , for
e xample ) from a ccidentally being l ocked in the vehi cle s hould the y
ac cidentall y pre ss the pow er lockin g switch in the front doors .
• Do not l eave childr en in side the vehi cle un sup erv is ed . In an
emerg ency it wo uld be impo ssible to open the door s from the
out side witho ut th e key.
[ i ] Tips
• In order for Convenience key to function, you must always carry
the master key with you.
• In order to be able to un lock or lock the vehicle, the authorized
master key must be within a range of about 1.5 meters from the
door or the rear lid.
• Of course, you can still un lock and lock your vehicle using the
buttons on the master key . The selector lever must be in the P posi ­
tion .
• For Declaration of Compliance to United States FCC and Industry
Canada regulations :::::,
page 375. •

Opening and closing
& WARNING
• When you lock your vehicle from outside, nobody -especially
children - should remain inside the vehicle. Remember, when you
lock the vehicle from the outside the windows cannot be opened
from the inside.
• When you leave the vehicle, always remove the ignition key and
take it with you. This will prevent passengers (children, for example) from accidentally being locked in the vehicle should they
accidentally press the power locking switch in the front doors .
• Do not leave children inside the vehicle unsupervised. In an
emergency it would be impossible to open the doors from the
outside without the key.
[ i] Tips
It is not possible to re-open the door for a brief period directly after
closing it. This allows you to ensure that the doors are properly
locked .•
Anti -theft alarm system
Description
The anti-theft alarm triggers an alarm if anyone attempts
to break into the vehicle.
The anti-theft alarm system triggers an audible alarm and turns on
the emergency flasher if an unauthorized interference with the
vehicle is sensed by the system.
How is the anti-theft alarm system switched on?
The anti-theft alarm system is switched on when you lock the
vehicle. The system is activated approximately 30 seconds after the
vehicle is locked. The indicator light on top of the door trim start
flashing rapidly for 30 seconds and then blink slowly.
How is the anti-theft alarm system switched off?
The anti-theft alarm system is switched off only when you unlock
your vehicle. If you do not open a door within 60 seconds after you have unlocked with the remote control, the vehicle will lock itself
again automatically.
When will the anti-theft alarm system be triggered?
When the vehicle is locked, the alarm system monitors and protects
the following parts of the vehicle:
• engine compartment
• luggage compartment
• doors
• vehicle incline
• ignition
When the system is activated, the alarm will be triggered if one of
the doors, the engine hood or the rear lid are opened, or if the igni­
tion is turned on or if the vehicle incline has been changed. The anti ­
theft alarm system will also go off when the battery is disconnected.
You can also trigger the alarm by pressing the PANIC button on your
remote control. This will alert other people in case of emergency .
Press the
PANIC button again to turn off the alarm .
How is the anti-theft alarm switched off when
triggered?
The alarm system is switched off when you unlock the vehicle or
when the ignition is switched on . The alarm will also switch itself off
when it comes to the end of its cycle.
Emergency flasher and horn
The emergency flasher will blink briefly and the horn sounds when
the doors, engine hood and rear lid are properly closed.
If the emergency flashers do not blink, or the horn does not sound,
check the doors, engine hood and rear lid to make sure they are
properly closed. If you close a door, the hood or the rear lid with the
~

Clear vision
Lights
Switching the headlights on and off ·'t!-·
In the "AUTO " position, a light sensor automatically
s w itches t he head- and tailligh ts on and off in response to
l ight con ditio ns.
Fig . 5 1 In strument
p an el: l ight swit ch
The light switch must not be ove rt u rned pas t the stops in
either direction .
Switching on automatic headlight control
-Tu rn the light swi tch to AUTO => fig. 51 .
Switching on the side marker lights
- Turn t he light switch to ~oo~ .
Switching on the headlights and high beam
-Tur n t he light switch to gD.
- Pu sh th e hi gh bea m le v er for ward tow ards t he inst ru-
m ent panel
=> page 67 .
Con tro ls and eq uip­
ment
Switching off the lights
- Tu rn the light sw itch to 0. Clear vision
The head
ligh ts only work when the ignitio n is switched on . While
starting the engine or when switching off the ignition, the head ­
lights wil l go off and only the side marker lights wil l be on.
After starting the engine, the headlights are automatica lly
adjus ted* to the load and ang le of the vehicle (for example, du ring
acceleration, braking) . This prevents oncoming traffic from experi ­
encing unnecessary headlight glare from you r headlights .
If the system is not operating properly, a warning symbol in the
Auto -Check Contro l is displayed
=> page 35.
With the side marker lights or headlights switched on, t he sym bol
next to the light switch illuminates
coo:.
Daytime running light s
• USA models :
On vehicles with xenon lights the daytime running
ligh ts will come on automa tically when the ignition is tur ned on and
the light switch=> fig. 51 is in the
O position or the AUTO position
(on ly in daylight conditions). The
Daytim e running lights func tion
can be turned on and off in the MMI menu
Exteri or lighting
=> page 6 4. On vehicles with halogen lights there is no daytime
running ligh ts function=> &,.
• Canada models: The daytime running lights wi ll come on au to ­
matically when the ignition is turned on and the ligh t switch
=> fig. 5 1 is in the O position or the AUTO positi on (only in dayligh t
conditions)
=> &, .
Automatic headlight control
In the switch posi tion AUTO the automatic headlight contro l is
turned on . The low beams are turned on automatica lly through a
light sensor as soon as ambient brightness (e .g. when driving into a
tunnel) fa lls below a value preset at the factory . When ambie nt ..,_
Vehicle care I I irechnical data