2014 AUDI S8 engine

Instrument s and warning /indicator lights 2 7
-The fuel economy messages are not dis­
played in every instance, but rathe r in in­
terva ls
over a period o f time.
Cylinder on demand System
App lies to vehicles: w ith 4 .0 TFS ! engi ne
F ig. 10 Inst rume nt cluster: fuel consumption
To save fu el, the eng ine automat ic all y t urns
four cylinders o n or
off, de pending on the
amo unt of power needed. This action is not
fe lt by the passengers.
Displaying cylinder mode
Requirement: t he on-bo ard computer is di s­
pl ayed~
page 25.
~ Turn the thumbwhee l until the current fue l
c o nsu mption display is shown in the inst ru­
me nt cl uster.
If the green ba r is d ispl ayed,
yo u a re driving in 4-cylin der m ode.
Basic requirements for 4 -cylinder mode
4-cy linder drive mode is used automatically if
certain basic requir emen ts are fulfi lled. These
in clude:
- A low powe r output requi reme nt.
- Driving in third gear or higher.
- Engine speed between 960 and 3,500 RP M.
-A warm engine .
Odometer
Fig. 11 Instrument cluste r Odo meter a nd reset button
The odometer shows you how many m iles
(k ilometers) you have driven. You can switch
the d isplay from miles to kilomete rs and v ice
versa via t he MMI.
Upper odometer
The trip odometer shows the distance driven
since it was last reset.
It can be used to meas­
ure s ho rt d istances . The last digit indicates
1/10 of a mile (100 meters) .
You can reset the trip odometer to zero by
pressing the Reset button~-
Lower odometer
The lower odomete r shows the tota l num ber
of m iles (kilometers) dr iven.
Malfunction message
I f th ere is a malfunc tion i n the in strumen t
cl us ter,
DEF will ap pear i n the trip odometer
display a rea. Conta ct your author ized Audi
dealer to have the problem corrected.
Time and date display
Fig . 1 2 Ce nter console: ana log clock

28 Instruments and warning/indicator lights
The date and time are shown in the instru­
ment cluster d isplay
c:;, page 24, fig. 4. There
is also an ana log clock in the center console
c:;, fig. 12.
When you open the driver's door, the date and
time appear in the instrument cluster display
for 30 seconds . When the ign ition is switched
on, the time is always displayed in the status
line © regardless of the current display.
You can set the time on both clocks and the date display in the MMI. Refer to the MMI
owner's manual for instructions.
Service interval display
The service interval display reminds you when
your next service is due.
Fig. 13 Inst rume nt cluster: Serv ice inte rval d isp lay
The schedule for the next oil change or inspec­
tion is calculated automatically and displayed
accordingly. The display works in two stages :
Service reminder
30 days before the next service is due, a serv­
ice reminder appears in the display when you
switch the ignition on
c:;, fig. 13 .
After about S seconds the display switches back to normal. The distance and time re­
maining are updated each time the ignition is
switched on until the date due for service is
reached .
Service due
When the due date for service is reached, the
message
Service due! appears in the instru­
ment cluster immediately after you switch the
ignition on . Additionally, a warn ing tone sounds. After about 5 seconds the disp
lay
switches back to normal.
Calling up the service schedules
If or when an oil change or inspection is due,
can be shown in the MMI display by selecting
the service interval display in the car menu.
Select the
ICARI function button > Car sys­
tems
control button > Servicing & checks >
Service interval displays.
Resetting the service interval display
Your authorized Audi dealer will reset the cor­
responding service schedule after performing
the appropr iate service on your vehicle. You
also have the possibility to reset the oil
change schedule after hav ing performed an
o il change according to Aud i specif ications.
Select the
I CAR I function button > Car sys­
tems
control button > Servicing & checks >
Service Intervals > Reset oil change interval.
(D Note
If you disconnect the battery term inals, no
calculations can be made for the service
i nterval disp lay during th is time and no
serv ice reminder will appear. Remember
that observing the proper service intervals
i s vitally important to extending the life of
your vehicle, pa rticularly the engine, and
maintaining its value. Even if the mileage
driven is low, the maximum period of one
year from one service to the next must not
be exceeded.
(I} Tips
-Do not reset the display between oil
changes, otherwise the disp lay w ill be in­
correct.
- The information in the Service Reminder
remains stored
even when the vehicle
battery is disconnected .

Instrument s and warning /indicator lights
Open door/hood/rear lid warning
Fig. 14 D isplay: doors and rear lid open
With the ignition switched on, the warning il­
luminates when at least
one door or the hood
or the rear lid is not closed. The symbol also
shows you
which door(s) or lid is not closed.
In the illustration ¢
fig. 14 it is the driver's
door and the left rear door.
On-Board Diagnostic
system (OBD)
Malfunction Indicator Lamp (MIL)
The Malfunction Indicator Lamp (MIL) ¢4 in
the instrument cluster is part of the On-Board Diagnostic (OBD II) system.
The warning/indicator light illuminates when
the ignition is switched on and goes out after
the engine starts and the idle has stabilized.
This indicates that the MIL is work ing proper­
ly .
If the light does not go out after the engine
is started, or illuminates while you are driv­
ing, a malfunction may ex ist in the engine sys­
tem. If the light illuminates, the catalytic con­
verter could be damaged.
Continue driving
with reduced power (avoid­
ing sustained high speeds and/or rapid accel­
erat ions) and have the condition corrected.
Contact your author ized Audi dealer.
If the light illuminates, the electronic speed limiter may also be malfunctioning. For more
in formation ¢
page 30, Electronic speed
limiter.
An improperly closed fuel filler cap may a lso
cause the MIL light to illuminate¢
page 225.
On-Board Diagnostics
Fig. 15 Location of Data Link Connector (DLC)
On-Board Diagnostics monitors the compo­
nents of your emission control system. Each
monitored component in your engine system
has been assigned a code . In case of a mal­
funct ion, the component will be identified
and the fault stored as a code in the control
module memory.
The MIL light may also illuminate if there is a leak in the on -board fuel vapor recovery sys­
tem.
If the light illuminates after a refueling,
stop the vehicle and make sure the fuel filler
cap is properly closed ¢
page 225.
In order to make an accurate diagnosis, the
stored data can only be displayed using spe­
cial diagnostic equipment (generic scan tool
for OBD).
In order to connect the special diagnostic
equipment, push the plug into the Data Link
Connector (DLC). The DLC is located to the
right of the hood release
¢fig. 15.
Your authorized Audi dealer or a qualified
service station can interpret the code and per­
form the necessary repair.
A WARNING
Do not use the diagnost ic connector for
personal use. Incorrect usage can cause
malfunctions, wh ich can increase the risk
of a collision!
-
29

30 Instruments and warning /indicator lights
Electronic speed limiter
Your veh icle may be factory equ ipped with
tires that are rated for a maximum speed of
130 mph (210 km/h). This is less than the
maximum speed of your vehicle. To reduce the
risk of sudden tire failure and loss of control if
the vehicle is operated at excessive speeds,
your vehicle also has an electronic speed limit­
er. The electronic speed limiter prevents your
vehicle from going faster than the tire speed rating. For more informat ion
c::> page 259.
If the engine control unit receives faulty vehi­
cle road speed signals, the Malfunction Indi­
cator Lamp (MIU¢• will illuminate . If this
occurs, contact the nearest authorized Aud i
dealer for assistance.
58
Your vehicle's top speed is electronically limit­
ed to 155 mph (250 km/h).
If the engine control unit receives faulty vehi ­
cle roadspeed signals, the Ma lfunction Indica­
tor Lamp (MIU ¢.id will illuminate. If this oc­
curs, contact the nearest authorized Audi
dealer for assistance.
A WARNING
-
Always observe the posted speed limits
and adjust your speed to suit prevailing
road, traffic and weather conditions. Never
drive your vehicle faster than the maxi­
mum speed rating of the tires installed.

Opening and closing Keys
Key set
Fig. 16 Key set
@ Remote control k ey with mechanical
key
You can centrally lock and unlock your vehicle
and start the engine with the master key with
remote control. A mechanical key is integrat­
ed in the remote control key¢
page 32.
® Emergency key
The emergency key is not intended for con­
stant use.
It should only be used in an emer­
gency. Keep it in a safe place and do not carry
it on your key ring .
Key replacement
If you lose a key, contact your authorized Audi
dealer immed iately to have the
lost key disa­
bled. Be sure to bring all your keys with you.
Personal comfort settings
If two peop le use one vehicle, it is recom­
mended that each person always uses "their
own" master key. When the ignition is switch­
ed
off or when the vehicle is locked, personal
conven ience settings for the following sys­
tems are stored and ass igned to the remote
master key.
- Automatic climate control
- Central locking system
- Rear window sun blind
- Amb ient lighting
- Seat memory
- Parking system*
Opening and closing 31
- Adaptive cruise control*
- Audi lane assist*
-Audi side assist*
-Audi drive select
- Night vision assistant*
- Heated steering wheel*
The stored settings are automatically recalled
when you unlock the vehicle, when you open
the doors or when you switch the ignition on.
A WARNING
---Do not leave your vehicle unattended. Al-
ways take your ignition key with you and
lock your vehicle . Entry by unauthorized
persons could endanger you or result in
theft or damage the vehicle.
- Do not leave ch ildren unattended in the
veh icle, especially with access to vehicle
keys. Unguarded access to the keys pro­
vides children the opportun ity to start
the engine and/or activate vehicle sys­
tems such as the power windows, etc.
Unsupervised operation of any vehicle
system by children can result in serious
injury.
(!} Tips
- Th e operation of the remote control key
can be temporarily disrupted by interfer­
ence from transm itters in the vic inity of
the vehicle working in the same frequen­
cy range (e.g. a cell phone, radio equip­
ment).
- For security reasons, replacement keys
are only ava ilable from Audi dealers.
- For Declaration of Compliance to United States FCC and Industry Canada regula­
tions¢
page 295.

32 Opening and clo sing
Remov ing the mechanical key
Fig. 17 Remote co ntrol master key : re m ov ing the me­
c hani cal key
.. Press the release button @c::> fig. 17.
• Pull the mecha nica l key @ out of the master
key.
Using the mechan ica l key, you can:
- lock and unlock* the storage compartment
on the passenger's side c::>
page 75.
-lock and unlock the vehicle manually
<=> page 36.
-lock the front and rear passenger doors me­
chanically
c::> page 37.
- unlock the luggage compartment lid man­
ually
c::> page 40.
Check light and battery in the master
key
Fig. 18 Remote master key : Remov ing t he batte ry
ho lder
Check light in the master ke y
The check light@c::> fig. 18 in the master key
prov ides informat ion about d ifferent cond i­
tions.
• The check light turns on briefly once when a
button is pressed, and dur ing an "inquiry"
by the conven ience key system. •
If the check light does not come on, the bat ­
tery is dead and has to be replaced . In addi­
tion, when the battery is dead
the m indica ­
tor light appears in the instrument cluster
display as well as the message
Pl ease
c hang e th e ke y b attery .
Ma ster key batter y replacement
• Remove the mechanica l key c::> page 32.
• Press the release button @ c::> fig. 18 on the
battery holder and at the same time pull the
battery holder out of the master key in the
direction of the arrow .
.. Install the new battery CR 2032 with the
"+ " sign facing down .
.. Push the battery holder carefu lly into the
maste r key.
• Insta ll the mechanical key .
@ For the sake of the environment
Dis p ose of dead batteries prope rly so as
not to poll ute the environmen t.
{D Tips
The replacement battery mus t be the
same specification as the o rigina l.
Electronic immobilizer
The immobilizer helps to prevent unauthor­
ized use of your vehicle .
A computer chip ins ide your key automatically
deact ivates the elect ron ic immobilizer when
t h e key is ins ide the veh icle . When you remove
the key from the vehicle, the elect ron ic immo­
bilizer is au toma tic ally activa ted once aga in.
& WARNING -
A lways take the key w ith you when you
l eave the vehicle. The key can disarm the
e lectronic engine immobilizer and permit
an una uthorized person to start the engine
and enable operation of the vehicle sys­
tems such as power w indow o r power sun -
r oof leading to se rious pe rsonal injury.
~

Locking and unlocking the vehicle with
the remote control
F ig. 19 Remote control: function buttons
Either the driver's door only or the entire veh i­
cle will unlock when the unlock button
en is
p ressed once, depending on the settings in
the MMI
r::}page 34.
.. Press button @ to unlock the veh icle
¢ fig . 19 .
.. Press b utton @to lock the vehicle ¢.&. in
General description on page 34 .
.. Press b utton C::5 briefly to unlock the lug­
gage compartment lid .
.. Push the red
I PANIC I button to activate the
panic function. The horn sounds and the
turn signals flash. Push the red
I PANIC ! but­
ton again to deactivate the panic function.
If the vehicle is unlocked and no door, the lug­
gage compartment lid or the hood is opened
within 60 seconds, the vehicle locks itself
again automatically. This feature prevents the
vehicle from be ing acc identally left unlocked
over a long period of t ime.
It depends on the settings in the MMI wheth­
er the entire veh icle is unlocked or only cer­
tain doors
c:> page 34 .
A WARNING
Read and follow all WARNINGS¢.&. in
General description on page 34.
@ Tips
- In order to make sure the locking func­
tion is working, you s hou ld always keep
your eye on the vehicle to make sure it is
properly locked.
Op enin g an d clos ing 35
-Do not use the remote cont rol if you are
inside the car, otherwise you may unin ­
tentionally lock the vehicle, and then you
would set
off the anti-theft alarm when
you try to start the engine or open a door . In case this happens anyhow, push
the unlock button
en.
- The veh icle can only be locked when the
selector lever is in the P position .
- Use the panic function only if you are in
an eme rgency situation .
Locking and unlocking with convenience
key
Applies to vehicles: with convenience key
The doors and the luggage compartment lid
can be unlocked and locked without operat­
ing the master key.
Fi g. 20 Co nve nience key: Lock ing the vehicle
Unlocking veh icle
.. Take ho ld of the door handle. The door is un-
locked automatically .
.. Pull the hand le to open the door.
Lo cking vehicle
.. Select the P selec tor lever posit ion. Other­
w ise the vehicle cannot be locked .
.. To lock the vehicle, close the door and touch
the sensor in the door handle
on ce c:> fig . 20 .
Do not reach inside the door handle .
T he vehicle can be locked and un locked at any
doo r. The master key must be within a range
of about 1.5 m from the appropriate door or
the luggage compartment lid . It makes no dif­
ference whether the master key is in your jack-
et pocket or in your brief case . ..,.

42 Opening and closing
Closing the windows
.,. Pull the switch to the first stop and hold it
until the window reaches the desired posi­
tion .
.,. Pull the switch briefly to the
second stop to
automatically close the window.
Power window switches
@ Driver's door
@ Passenger's door
© Left rear door
@ Right rear door
® Safety button (or two safety buttons in
vehicles w ith power child safety locks
c:> page 41)
Child safety lock
When the safety button® c:> fig. 32 is press­
ed, the LED in the button lights up. The fol­
lowing features are switched off:
- The power windows in the rear doors,
- The buttons for the power sun shades * in
the side windows,
- The buttons for the power sun shade* in the
rear window,
- Front passenger power seat adjustment*
button.
&_ WARNING
- When you leave your veh icle - even if on­
ly brief ly - always take the ignition key
with you. This applies particularly when children remain in the veh icle. Otherwise
the chi ldren could start the engine or op­
erate electrical equipment (e.g. power
w indows). The power windows are func­
tional until the driver's door or passeng­
er's door has been opened .
- Be careful when closing the windows.
C heck to see that no one is in the way, or
serious injury could result!
- When locking the vehicle from outside,
the vehicle must be unoccupied since the
windows can no longer be opened in an
emergency.
(D Tips
- The driver can lower or raise the power
sun shades* in the s ide windows by using
switches © and @.
- After the ignition has been switched
off,
the windows can sti ll be opened or
closed for about 10 minutes. The power
w indows are not switched off until the
dr iver's door or passenger's door has
been opened .
What to do after a malfunction
The one-touch open and close function must
be reactivated if the battery has been discon­
nected .
.,. Pull and hold the power window switch until
the window is fully closed .
.,. Release the sw itch and then pull it again for
at least one second.
Valet parking
The valet parking feature protects the lug­
gage compartment from unauthorized ac­
cess .
Fig. 33 Valet parking button
With "valet parking" activated , the luggage
compartment lid cannot be opened .
.,. Remove the mechanica l key
¢ page 32.
.,. Open the glove compartment and activate
c:> fig. 33 the "valet parking" feature by
pressing the
j VA LETi button . The indicator
light in the sw itch illuminates .
.,. Close the glove compartment and lock it
w ith the mechanical key . .,.