warning light AUDI S6 2008 Service Manual

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& WARNING
Always keep the lid closed while driving to reduce the risk of injury
during a sudden braking maneuver or in the event of an accident. •
Coat hooks
(0
~ 1--,, ' ,/,
~
& WARNING
c; ~
, I
~ N ti. ...
"'
Fig . 108 Coat hook s at
rear doors
• Hang clothes in such a way that they do not impair the driver's
vision .
• The coat hooks must only be used for lightweight clothing. Do
not leave any heavy or sharp edged objects in the pockets which
may interfere with the side curtain airbag deployment and can
cause personal injury in a crash .
• Do not use coat hangers for hanging clothing on the coat hooks
as this can interfere with proper deployment of the SIDEGUARD
head-protection airbags in an accident .
• Do not hang heavy objects on the coat hooks , as they could
c ause personal injury in a sudden stop . •
Con tro ls and eq uip­
ment Vehicle care
I I irechnical data

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Manual air circulation I~]
Air recirculation prevents exhaust fumes or other pollu­
tion from entering the vehicle.
Turn in g o n air re circ ulation
- Press [ ~]
=> page 112, fig. 109 => &
Turnin g off air r ecir cul ation
- Press@ agai n, or
- press [AUTO], or
press[@].
In the air recirculation mode, the air in the passenger compartment
is recirculated and filtered to prevent exhaust fumes and other
pollution from entering the vehicle . We recommend that you use the
manual air recirculation under the following conditions:
• when driving through tunnels
• in a traffic jam .
& WARNING
Do not u se this s ett ing f or exte nded p erio ds of time. The w in d ows
c ould f og up since no fre sh air can ente r the v ehi cle . If the
w indo ws fog up , pre ss the air recirculati on button ag ain imm edi ­
a tel y to swit ch off the air r eci rcu la ti on f unction or se le ct defr ost. •
Con tro ls and eq uip­
ment
Rear window defogger QW
I ._ _ _._ __ u.
1-----------------i
Fig. 116 Switch fo r
r e ar window defo gger
Press the (ffiJ switch to turn the rear wi ndow defogger on
and off =:> fig . 11 6.
The rear window defogger works only when the engine is running.
The light in the switch will illuminate when the defogger is on.
The rear window defogger is switched automatically after 10 to 20 minutes, depending on the outs ide temperature .
At very low outside temperatures, the rear window defogger can
switched on continuously by pushing the
Qw button for more than 2
seconds. This remains stored until the ignition is switched off . A
rear window defogger that was switched on also remains stored for
15 minutes after the ignition is switched off.
If the engine is restarted within these 15 minutes, the rear window
defogger is activated for 10 to 20 minutes, depending on outside
temperature. With a vehicle that is parked for a short time, the rear
window defogger does not need to be manually activated again.
<£> For th e sake of th e environm ent
Turn the defogger off when the rear window is clear . When you save
electricity, you save fuel. •
Vehicle care I I Technical data

• ..__O_ n_ t_h _e _ r_o _a _ d __________________________________________________ _
& WARNING
Never start or let the engine run in a confined or enc losed area .
Exhaust fumes from the engine contain carbon monoxide , a color ­
le ss and odorless gas . Carbon monoxide can be fatal if inhaled .
• Never leave the engine idling unattended . An unattended
vehi cle with a runn ing engine poses a danger of personal injury or
theft.
0 Note
• Avoi d high engine speed s, fa st a ccele rati on or heavy eng ine
loads while the engi ne is sti ll cold. This cou ld damage the engine.
• The e ngi ne canno t be sta rt e d by pushing o r to w ing the vehicle.
~ For the sake of the environment
To avoid unnecessary engine wear and to re duce ex hau st emis ­
sions, do not let your vehicle stand and warm up. Be ready to drive
off immed iate ly afte r start ing y our veh icle. Maintain modera te
sp eed unt il the engine is completely warm. Remembe r, th e engine
performs best a t operati ng tempe ra ture .•
Stopping the engine
- Turn t he ignit ion key to position ©~ page 125 , fig. 123 .
& WARNING
• Never turn off the engine until the vehicle has come to a
complete stop.
• The brake booster and servotroni c only work when the engine
is running . With the ignition turned off , you have to apply more
force when steering or braking . Since you cannot steer and stop
normally, this can lead to accidents and serious injuries .
& WARNING (continued )
• The radiator fan can continue to run for up to 10 minutes even
after you have turned off the engine and removed the ignition key .
The radiator fan can also turn on again if the engine coolant heats
up because of inten se sunlight or heat build -up in the engine
compartment .
0 Note
Do not stop the engine immediatel y after hard or extended driving.
Keep the eng ine runn ing f or ap proximate ly t wo minu tes to preven t
excessive heat build -up. •
Starting and stopping the engine
with Advanced Key
Ap plies to veh ic les : w ith Advan ce d Key
Starting the engine with the [ START) button
This button switches on the i gnition and starts the en gine.
Fig. 124 Advanced
Key: ENG INE START
button
T he [ S TA RT ] b utto n is prov ided with two-stage operation
~ fig . 12 4. .,,_

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and then the driver's door is opened. In this instance, the steering is
not locked . The steering is locked :
• If you press the
I STOP ] button aga in for more than 1 second.
• If you c lose the driver's door and lock your vehicle from the
outside .•
Electromechanical parking brake
Operation
The electromechanical parking brake replaces the hand
brake.
Fi g. 12 6 Center
co nso le: Parki ng bra ke
- Pull the switch to app ly the park ing brake => fig. 12 6. The
indicator light in the switch will come on .
- Step on the brake pedal or the accelerator pedal and
press the switch at the same time to rel ease the parking
brake. The indicator lig ht in the switch wi ll go out.
Your vehicle is equipped with an elect romechanical parking brake
which replaces the handbrake . T he parking brake is designed to
prevent the vehicle from rol ling unintentional ly.
Con tro ls and eq uip­
ment
I n add ition to the normal functions of a traditional hand brake, the
e lectromechanica l parking brake provides various convenience and
safety functions.
Emergen cy brake
An emergency brake ensur es that the vehicle can be slowed even if
t he
normal brakes fail=> page 131, "Emergency braking".
Ind icator lights
• If the parking brake is applied with the ignition tu rned on , the
indicator light in the instrument cluster (U.S models :
::i.:,, Canadian
models: ®)) and in the switch <®) will com e on .
• I f the parking brake is app lie d with the ignition
tu rn ed off , the
indicator light in the instrument cluster (U.S. models: ::.:\,, Canadian
models :(®) ) and in the switch© will come on for about 30 seconds
and then go out .
& WARNING
If the vehicle i s stationary and the tr ansmi ssion is engag ed with
the engine ru nning , the engine should not be speeded up (e .g .
manu ally from under the hood ). Otherwi se the vehicle will sta rt to
move -you run the risk of a n accident .
0 Note
If the warning/indica tor light (U.S . mode ls: BRAKE , Canadian mode ls :
(Ci)) ) flashes in the instrument clus ter, there is a brake system
malfunction . By pressing the
I CHECK] button, you can bring up a
driver message which explai ns the ma lfunc tion in more detail. If the
message
P a rki ng brake ! Plea se conta ct w ork shop appears, there is
a par king brake malfunction which you should have repaired imme -
d iate ly by an authorized dealership=>
page 32. ..
Vehicle care
I I irechnical data

On the road -
----------------
The display=> page 132, fig. 128 will show the set speed . The
display may vary depending on the type of disp lay in your vehicle .
The indicator light
CRU ISE (US model) I (')0 (Canadian mode l) wi ll also
light up in the instrument cluster.
The speed is kept constant via an engine output adjustment or active brake intervention .
_& WARNING
• Always pa y attent ion to traffic even whe n the crui se control is
switc hed on. You are alw ays r esp onsi ble for your speed and the
di sta nce b etween your vehi cle and other vehi cle s.
• For s afet y reason s, the crui se control should not be u sed in the
c ity , in stop- and-go traffic , on twi sting roads and when road condi ­
t ion s a re p oor (s uch a s ice , fo g, gra vel , he avy ra in and h ydro ­
planing ) - risk of accident.
• Turn off the crui se control tempor arily when e nte ring tu rn
lan es, highway exit lanes or in constru ction zone s.
• Plea se note that in adv ertentl y "re sting " yo ur foot on the accel­
erator ped al cau se s the cruise control not to brake . Thi s is b ecau se
the crui se control i s overridden b y the dri ve r's acc eleration .
[ i] Tips
The brake lights il luminate as soon as the brakes decelerate
automatically .•
Ap plie s to v ehicl es: w it h c ruise contro l
Changing speed
-Press lever© in the 0 or O directi on => page 132,
fig. 127 t o in crease or d ec reas e your spe ed.
- Re lease the lever to s ave tha t speed.
Controls and equip ­
ment Change speed in increments of 1 mph (1 km/h) by
lightly pressing
the lever . If you keep the lever pressed down, you will a lter your
speed in 5 mph (10 km /h) increments .
You can a lso press the acce lerator pedal down to increase your
speed, e.g. if you want to pass someone. The speed you saved
earlier will resume as soon as you release the accelerator pedal.
If , however, you exceed your saved speed by 5 mph (10 km/h) for
longer than 5 minutes, the cruise control will turn off temporarily .
The symbol wi ll go ou t bu t the saved speed wi ll be retained. •
Applie s to v ehic le s: with c ruise cont ro l
Presetting your speed
You can prese t your desire d speed while the vehicle is not
moving.
- Turn o n the ignition .
Pu ll lever © into posit ion
G) => page 13 2, fig. 127 .
Press the lever in the
0 or O direction to increase or
decrease your speed .
- Release the lever to save that speed .
This function makes it possible, for example, to save the speed you
want before driving on the highway. Once on the highway , activate
the cruise contro l by pu lli ng the lever toward
G) . •
Ap plies to ve hic les: with c ruise contro l
Switching the system off
Temporary dea ctivation
- Press the brake pedal, or
I • •

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& WARNING (continued)
• Setting short distances to the traffic ahead reduces the time
and distance available to bring your vehicle to a safe stop and
makes it even more necessary to pay close attention to traffic.
• Always use good judgment and select a safe following distance
for the traffic, road and weather conditions.
[ i ] Tips
The distance setting is reset to the factory default DISTANCE 3 the
next time the ignition is turned on.•
Driver information
Applies to veh icles : with Ada ptive C ru is e Cont ro l
Displays in the instrument cluster
Depending on the driving situation, driver information is
displayed in the instrument cluster.
Fig. 136 Overview instrument cluster
© Display in the speedometer
® Display in the instrument cluster
© Status indicator
© Display in the speedometer
Important information concerning vehicle operation with Adaptive
Cruise Control is shown in display area@. The desired speed you
set is indicated in the speedometer (LED lights around the edge)
and the indicator lights show whether the system has detected a
vehicle traveling ahead. -.,

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@ Di spl ay in t he instrum ent clust er
In display area@ information from the navigation system and the
trip computer is disp layed in addition to information about Adap tive
Cruise Cont rol.
You can select among the different information by repeated brie f
taps on the
[RESET) button on the w indsh ie ld wiper lever
=> page 41, "Operation" .
© Statu s indi cator
The information in area@ is not displayed permanently . Informa­
tion is displayed only if you set or change the speed setting, change
t he time interval, when messages are disp layed or if the Adaptive
Cruise Control is turned off for safety reasons. •
Applies to veh ic les: with Ad apt ive Cru ise Co nt rol
Display in the speedometer
Desired speed
Fig . 1 37 Display in th e
s pe ed om eter
The desired speed set by the driver is displayed by a red LED .
I f the desired speed was set between two lines on the speedometer
us ing the
[ SET ) button, the two closest light diodes will come on
=> fig. 137.
Con tro ls and eq uip­
ment
The system al lows only speeds from 20 to 95 mph (30 to 150 km/h)
t o be set. This speed range is faintly i lluminated in the speedome ter
(LED ligh ts) .
Ind icator light s (sy mbols )
• "'' ~ Open ro ad :
The indicator light""~ shows that Adaptive
Cruise Control is active and that no object is ahead o f the vehicle.
A
stored speed requested is maintained .
• ~'" '~ Driving in traffic: The indicator light~""~ indicates that
an object has been detected trav eling in front. Your speed is
adjusted according to the speed of the vehicle in fr ont . The Adap tive
Cruise Control acce lerates and brakes automatica lly within the
system's operation pa rameters.
• ~" "~ Driver inter vention p rompt : The red flashing warning
light
c::::, ,,, ,~ means Request for driver to a ssume control. Yo u as the
drive r must slow the vehic le with the foot brake . The symbol ~,, ..
~
tel ls you that the Adaptive Cruise Control is not able t o slow t he
vehicle down enough to keep a enough distance to the vehic le in
front of you . An warning tone will also sound when the symbol
appears. For more information about the driver intervention prompt
=> page 146.
[ i ] Tips
• I f you use the accelerator to go faster than the speed of the
object ahead of you, the
driver intervention prompt wi ll no t be
accompanied by a warning signal.
• I f the speed you prev iously set is exceeded, the ind icator light in
the speedometer will switch off. •
Vehicle care I I Technical data

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Ap plies to vehicles: with Adaptive Cru ise Co nt rol
System status indicator
The text messages and symbols shown in this area of the
display are not displayed perm anently.
T ime intervals
Fig . 139 Sy stem
sta tus indi cator
The different symbols for the time intervals appear if you change the
settings ~ fig. 139 .
The text message ... (three white dots) appears if a setting cannot be implemented with the operating lever . The following are possible
reasons:
• If you pul l the control lever towards you to resume speed but no
requested speed was set .
• I f you push the lever up to increase (or down to reduce) speed
when no speed has been set previously.
• If you push the lever up to increase (or down to reduce) speed
and this speed is outside the range from 20 to 95 mph (Canada
models : 30 to 150 km/h) .
ACC fun cti ona lity limited
The text message AC C functionalit y limited appears when the ACC
System does not detect any objects over an extended time period.
For the time being, the distance to vehicles up ahead is not being
Con tro ls and eq uip­
ment
controlled. The ACC system is not switched off, so increased alert­
ness is required. The following may be reasons for the text message
ACC Functiona lly limited:
• The ACC sensor is dirty. The ACC system is not reacting, or is not
reacting correctly, to veh ic les travel ing ahead.
• I t is possible that you are driving on a road with very light traffic
without anything at the side of the road (e.g. guard rai ls, traffic
signs, trees). As soon as a vehicle is detected by the system again,
it returns to its control range and the text message disappears .
The ACC sensor is located in the area under the front license plate.
If there is a loss of operation due to heavy contamination, this area
should cleaned to restore proper operation .
ACC not available
The text message ACC n ot ava ila ble appears, for example, if the
t emperature of the brakes is excessive. Adap tive Cruise Control is
temporarily not available . A warning tone sounds as a reminder .
ACC not available!
The text message ACC not ava ilable ! appears in the event of a
malfunction . Adaptive Cruise Contro l is tur ned o ff. A warning to ne
sounds as a reminder. Have the system inspected by a qua lified
dea lership .
ACC se nsor bl ocked !
The text message AC C sensor blocked ! appears when the ACC
System can no longer guarantee safe detection of objects . Adaptive
cruise control is turned off. A chime sounds as a rem inder .
To decide whether it is necessary to switch off the ACC (ACC sensor
blocked
!) or if it is only a temporary condition (ACC functionality
limited), the system wi ll also takes into consideration the outside
temperature and/or the windshield wiper operation.
The ACC sensor is dirty o r blocked (e .g . leaves, sn ow).
Vehicle care I I irechnical data

• ..__A_ d_a...: p:,..._ ti_v _ e_ C_ ru_ is_ e_ C_ o_n_ t_ r_ o _ l ___________________________________________ _
The ACC sensor is located in the area under the front license plate .
If there is a loss of opera tion d ue to heavy contam ination, this area
should cleaned to restore proper operation.
E PB activatio n
The text message EPB activation appears if emergency braking was
manual ly initia ted with the Electromechanica l Parking Brake (EPB).
The Adaptive Cruise Contro l is turned off. This is accompanied by a
wa rning tone .
ESP activa tio n
The tex t message ESP activat ion appears i f the Elec tronic Stabil iza ­
tion Program (ESP) has intervened. In this case the Adaptive Cruise
Contr ol is a utomat ical ly turned off . This is accompanied by a
warning tone.
Speed
The set speed in mph (Canada km/h) a lways appears when saving or
cha nging the speed in Adaptive c ruise control =>
page 137, "How is
the speed stored?" and=>
page 138, "Changing stored speed".
Speed range
The text message Speed r ange appears if the current speed is too
low
to set or to hold the requested speed .
When setting a desired speed, it must be at least 20 mph (30 km/h).
At speeds below 12 mph (20 km/h), the cruise control is turned off .
In speeds
over 95 mph (150 km/h), the system remains active and
resumes the speed of 95 mph (150 km/h) if the driver removes the
foot from the accelerator .
Selector lever position!
The text message Selector lever po sition! appears when the
selector lever is moved to position N. In this position, Adaptive
Cruise Control is not ava ilable .•
App lies to vehic les: w ith Ad apt ive Cruise Contro l
Driver intervention prompt
The driver intervention promp t calls on the driver to take
over the situation.
F ig . 140 I nstru ment
c lu ster: Dri ver int er­
v ention prompt
In cer tain situati ons, the braking power of t he Adaptive cruise
control is not sufficient to maintain an adequate distance from the
object ahead. In this situation, the Adap tive cruise contro l ca lls on
you as the driver to take action.
The
driver intervent ion prompt a lerts you visual ly and audibly.
• A red vehicle is shown in the instrument c luster disp lay
=> fig. 1 40 .
• The tex t
DISTANCE! appears in the sta tus line.
• The indicator light
,;:::::,11 .. ,;:::::, in the speedometer b links red.
• An warning tone sounds .
[ i ] Tips
• I f the Adaptive cruise control initiates braking, the hydraul ic
brake system is under pressure. Therefore, the brake peda l distance
is shorter and the pedal "feels" harder.
• Adaptive Cruise C ontro l is switched off af ter pressing the foot -
brake. The speed
saved up this point can be resumed. _,,,

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• To resume the saved speed, release the brake pedal and press
t he control lever~
page 139, "Turning Adaptive Cruise Contro l off
temporarily".
• If you use the accelerator to go faster than the speed of the
object ahead of you, the
drive r int erv enti on prompt will not be
accompanied by a warning signal.
• If the speed you previously set is exceeded, the indicator light in
t he speedometer wi ll switch off .•
Appl ies to veh icles : w ith Ada ptive C ru ise Cont rol
MMI settings
Individual settings for Adaptive Cruise C ontr ol can be
selected in the MM/ .
Fig. 1 41 MMI D isplay:
Ad apti ve C ru is e
Co ntrol
Sett ings for t he driving program can be adjusted indiv id u­
ally to the particular user and saved in the MMI. This can
only be done with the eng ine running.
- Press the
I CARI funct ion b utton .
- Selec t
System s* in the CAR menu.
Select
Ad aptive Cruise Control. The Adaptive Cruise
Control
menu appears .
Controls and equip ­
ment
Select driving progr am.
- Selec t the desi red driving program .
Setting th e dri ving p rogr am
In the dri ving program menu you can adjus t the characteristics of
Adaptive Cruise Contro l to what you want using
dyn ami c, s ta ndard
or co mfort .
Saving setting s
Your individual settings are automat ical ly saved and assigned to the
remote contro l key being used (remote key storage). If the key is
given to another person, the saved settings remain as they a re. •
System limitations
Ap plie s t o v ehi cles: with Ad apt ive Crui se Co nt rol
General information
Some driving situations which affect the function of the
radar sensor ore described below.
When driving, the Adaptive Cru ise Control is governed by physical
and system -specified limits. Also, under certain circumstances, the
ACC system may react unexpec tedly or late from the dr iver's point
of view. Therefore, always be attentive and intervene, if necessary :
• when driv ing around curves~
page 148
• when vehicles in front are not in line with your
vehic le ~
page 148
• when other vehicles are changing lanes~ page 149
• when other vehic les are difficu lt to detect~ page 149.
I • •