2015 AUDI S8 warning light

Instrument s and warning /indicator lights 25
Access ing Vehicle functions
• Se lect the firs t tab with the rocker sw itch
@ .
• Pr ess the button ~-Th e Vehicle functions
menu app ears <=>fig. 7.
• To select a menu item, tu rn and press the
th umbwheel @.
Resetting values to zero
• Se lect the on-board computer / Efficiency
program
menu item in the Vehicle func­
tions
menu.
• You can now select between the long-term
memory and shor t-term memory .
• To reset the values in a memory, press and
ho ld the thumbwhee l
® for one second .
The last function se lected displays when you
switch the igni tion on.
(D Tips
- All stored va lues w ill be lost if the veh i­
cle battery is disconnected.
- Fuel consumptions (average and cur ­
r ent), range and speed are displayed in
metric units on Canadian models .
On-board computer
F ig. 8 I n str u m en t cl uster : fu el co nsumpt io n
You can call u p the following information in
the on-board computer:
- Date
- Drivi ng time (h) from the s hort- term memo-
ry
- Ave rag e consumption in MPG (l/100 km)
from the sho rt-term memo ry - Average speed in m
ph (km/h) from the
short-term memory
- Dis tan ce driven in miles (km) from the
short-term memory
- Cur re nt fu e l c on sump tion in MPG (l/100
km)
- Short-te rm memory overview
- Long-te rm memory ove rview
The short-term memory collects driv ing infor­
mation from the time the ign it io n is switched
on until it is swi tched off . If you continue driv­
i ng withi n two ho urs after sw itch ing the ig ni­
ti on off, the new values are in clu ded when cal­
cu lat ing the current trip info rm ation .
Unlik e the s hort-term memory, t he long-term
memo ry is not erased automatically . You can
sele ct th e time pe riod for evalua tin g trip in­
f ormat io n yo urse lf.
Fo r some vehicle f unctions, you can access t he
t rip informa tion from t he tempo rary memory
i n t he line
(Dr=> page 23, fig . 5.
Fuel consumption
The current fue l cons umption can be d is­
played using a ba r<=> fig.
8. The ave rage con­
s u mption (mpg) stored in the sho rt-term
memo ry is also displ ayed. W he n t he ba r tu rns
green, yo ur vehicle saves fue l by one of the
f o ll ow ing func tions:
- Recuperation : When the v ehicle is coast ing
or dr iving dow nhill, elec trica l energy can be
s to red in the b attery . T he b ar will move to­
ward
0 .
-Cylinder on demand System* : whe n the de ­
mand fo r p ower is low and ot he r co ndit ions
are met, the engi ne au tomatically deacti­
vates fo ur cyli nders (4 .0 T FSI) or s ix cylin­
ders
(6 .3 F SI). The driver and passengers
w ill not even notice th is. The message
4 cyl­
inder mode
(4 .0 TFSI) or 6 cylinder mode
(6.3 FSI) appears under the bar. The cylin­
ders switch on again when mor e powe r is
needed .

26 Instruments and warning /indicator lights
Efficiency program
App lies to vehicles: with efficiency program
Fig . 9 Tri p com puter: ot her equipment
Fig. 10 D isplay: example of a f uel eco no m y message
The effic iency program can help you to use
l ess fuel.
It shows other eq uipment influenc­
ing consumpt ion and fue l economy messages
p rov ide tips f or efficient driv ing . The efficiency
prog ram uses distance a nd consumption data
from tr ip compute r
1.
To display the efficiency program, ca ll up Ve­
hicle functions
and select the menu option
Efficiency program .
Other equipment
Other equipment that is currently affecting
fuel consumption is listed in t he v iew
Con ­
sumer .
The display shows up to three other
items of equipment @¢
fig. 9. The equip ­
ment us ing the most fuel is listed f irst . If
mo re than three it ems using fue l ar e swit ch ed
on, the eq uip ment th at is cur ren tly using the
most fuel is d isp laye d.
A scale @also shows the cu rrent total con­
sumpt ion of all other equ ipme nt.
Fuel economy messages
F ue l economy messages are disp layed when
fue l consumption is increased by certain con- di
tions ¢
fig. 10 . If you follow these fuel
economy messages, you can reduce you r vehi­
cle's consumpt io n of fuel. The messages ap ­
pear automatically and are on ly disp layed in
t h e efficiency program . The f uel economy
messages tu rn
off automatically after a cer ­
ta in period of ti me.
To turn an economy message
off i mmediately
after it appears, press any button on t he mul­
t if u nct ion steer ing whee l.
@ Tips
- If the data are deleted in the efficiency
program , those values a re a lso reset i n
t rip computer.
- Once you have turned a fuel economy
message
off, it will on ly appear agai n af­
ter you turn the ig nition on again .
- The f uel economy messages are not dis­
played in every instance, but rather in in ­
t ervals over a period of time .
Odometer
Fig. 11 Instrume nt cluster O do m eter a nd r eset button
The odometer shows you how many m iles
(k ilomete rs) you have drive n. You can switch
the d isplay from miles to ki lometers and v ice
versa via the MMI.
Upper odometer
The trip odometer shows the distance driven
since it was last reset . It can be used to meas­
u re s hort dista nces . The last digit indicates
1/10 of a mile (100 meters).
You can reset the trip odometer to zero by pressing the Reset button~-

Instruments and warning/indicator lights 2 7
Lower odometer
The lower odometer shows the total number
of miles (kilometers) driven.
Malfunction message
If there is a malfunction in the instrument
cluster ,
DEF will appear in the trip odometer
display area. Contact your authorized Audi
dealer to have the problem corrected.
Time and date display
Fig. 12 Center console : analog cloc k
The date and time are shown in the instru­
ment cluster display ¢
page 23, fig. 4. There
is also an analog clock in the center console
¢fig. 12.
When you open the driver's door, the date and
time appear in the instrument cluster display
for 30 seconds. When the ignition 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 Instrume nt cluster: Serv ice interva l dis play
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¢
fig. 13.
After about 5 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 warning tone
sounds. After about 5 seconds the display
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
I CAR I 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 ..,_

28 Instruments and warning /indicator lights
the app rop riate serv ice on yo ur vehicle. Yo u
a lso have the possibility to reset the oil
change sched ule after having performed an
oil change accord ing to Audi specifications.
Select the
! CAR ! function button> Car sys ­
tems
co ntrol button > Servicing & checks >
Service Intervals > Re set oil change interval.
(D Note
- Only reset the o il change d isp lay when
you hav e completed an o il chang e.
- If you d isconnect t he battery term inals,
no calculations can be made for the serv­
i ce i nterva l display du ring this t ime and
n o s ervi ce rem ind er w ill appea r. Remem­
be r that ob se rvi ng the pr ope r se rvice in ­
te rv als is vitally impor ta nt t o extendi ng
the life o f yo ur vehicle, p articula rly th e
engine, an d main tainin g its va lue . Even i f
the mileage dr iven is low, t he max imum
p eriod of one year from one se rv ice to
the next must n ot be e xceeded.
@ Tips
- The information in the Service Reminder
r ema ins sto red even when the vehicle
batte ry is disconnected .
Head-up Display
Applies to vehicles: with Hea d-up Display
Fig. 14 Examp le: in di cato rs in the Head-up Disp lay
Fig . 15 Instrument pa nel: k nob fo r the Head -up D is ­
p lay
T he Head -up Disp lay projec ts cer tain warnings
or se lected information from the ass istance
systems * or navigation* on the windshie ld.
The display appea rs within t he driver's field of
vision.
Switching on /off
.,. Press the knob~ to switch t he Head -up
Display on/off ¢
fig. 15.
Adjusting the height
The heig ht of th e d is p lay can be adju sted to
t h e i nd ividua l dr ive r.
.,. Mak e s ure you are s eated co rre ctly
co page 134.
.,. Tur n th e kn ob~ to adjust t he di sp lay.
Settings in the MMI
.,. Select: !CARI function button> ( Car) * sys­
tems
co ntrol button > Driver Assist > Head­
up Di splay
> Head-up Display content o r
Di splay brightness .
Display content
In the MMI, you can spec ify w hich information
shou ld be disp layed such as nav igat io n in for­
mation* or Night v is io n assis tant* .
The speed disp lay and some of the red i nd ica­
tor lights cannot be hidden in the MMI.
Display brightness
Y ou can adjust the disp lay br ig ht ness in the
MMI. The d isp lay brightness decreases a uto ­
matically as the amount of light decreases.
The basic level of br ightness is adjusted w ith
t h e instr ume nt ill uminati on
co page 51 . ..,.

Instrument s and warning /indicator lights 29
(D Note
To prevent sc ratches on the g lass covering
the Head-up Disp lay, do not place any ob ­
jects i n the projection opening.
(D} Tips
- Sunglasses with polarizat ion fi lters and
u nfavo rable lighting condit ions can af­
fect the display.
- A specia l windshield is needed for the
Head-up Display funct ion .
- Fo r information on cleaning, refe r to
c:!) table on page 216.
Open door/hood/rear lid warning
Fig. 16 Dis play: door s and rear lid o pe n
W ith the ignition swi tched on , the w arning il ­
l um ina tes when at le ast
one d oor or the hood
or the rear lid is not closed . The symbol also
shows you
which door(s) or lid is not closed.
I n the illus trati on
Q fig. 16 it i s the drive r's
door and the left rear door.
On-Board Diagnostic
system (OBD)
Malfunction Indicator Lamp (MIL)
The Malfunction In dica tor Lamp (M IL) ¢..ifl in
the ins trument clus ter is part of the On-B oard
D iagnostic (OB D II) system .
The warning/ind icator l ight illum ina tes when
the ign ition is switc hed o n and goes o ut afte r
the eng ine starts and the idle has stabilized.
This indicates that t he MIL is working proper ·
Ly .
If the light does not go out afte r th e engine
is starte d, or illumi nates while you are driv­
i ng , a mal function may e xist in the eng ine sys ­
tem .
If the light illumi nate s, the catalytic con­
verter could be d amaged .
Contin ue d riving
with reduced power (avo id­
i ng s usta ined h igh speeds and/or rapid accel ­
erations) and have the cond ition corrected .
Contact your authori zed Audi dea ler.
If the light illuminates, the electronic speed
li miter may also be malfunct ioning. For more
i nformation
Q page 30, Elec tronic speed
limiter.
An imprope rly closed fuel fille r cap may a lso
ca use the MIL light to ill uminate
~ page 223.
On-Board Diagnostics
Fig. 17 Locat io n of Data Link Co nn ector (D LC)
On- Boa rd Diagnost ics monitors the compo­
nents of your emiss ion cont ro l s ystem. Each
monitored component in your eng ine system
has been ass igned 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.
T he MIL light may also illuminate if there is a
leak in the on -board fuel vapor recovery sys­
tem. If the lig ht illuminates after a refueling,
stop the vehicle a nd make sure the fuel fi ller
cap is prope rly closed
c:!) page 223.
In order to make an accurate diagnosis, the
stored data can on ly be displayed using spe­
c ia l diagnostic equipment (generic scan tool
furOBru.
~

30 Instruments and warning /indicator lights
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. 17.
Your authorized Audi dealer or a qualified
service station can interpret the code and per­
form the necessary repa ir .
.&_ WARNING
Do not use the diagnostic connector for
personal use. Incorrect usage can cause
malfunctions, which can increase the risk
of a coll is ion!
Electronic speed limiter -
Your veh
icle may be factory equipped with
tires that are rated for a maximum speed of
130 mph (210 km/h). Thi s 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 information
c> page 256.
If the engine control unit receives faulty vehi­
cle road speed signals, the Malfunction Indi­
cator Lamp (MIU
¢'4 will illuminate. If this
occurs, contact the nearest authorized Aud i
dealer for assistance .
S8
Your vehicle's top speed is e lectronically limit­
ed to 155 mph (250 km/h).
If the engine control unit receives faulty vehi ­
cle roadspeed signals, the Malfunction Indica­
tor Lamp (MIU
¢'4 will illuminate. If this oc­
curs, contact the nearest authori zed Audi
dealer for assistance .
.&_ WARNING
-
Always observe the posted speed limits
and adjust your speed to suit prevailing
road, traffic and weather conditions. Never
dr ive you r vehicle faster than the maxi­
mum speed rating of the tires installed.

.... N .... N
0 J:
"". .... I.O
"' ....
"' ....
Opening and closing Keys
Key set
Fig. 18 Key set
@ Remote control key 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 active 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 293.

32 Opening and clo sing
Remov ing the mechanical key
Fig. 19 Remote control master key : removing the me­
chanical key
.. Press the release button@r=>.> fig. 19.
• 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. 20 Remote master key: Removing the battery
holder
Check light in the master ke y
The check light@c::> fig. 20 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 convenience 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
!I indi ­
cator light appears in the instrument cluster
display as well as the message
Pl ease
chang 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@¢ fig. 20 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 environment.
{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
the key is ins ide the veh icle. When you remove
the key from the vehicle, the elect ron ic immo­
bilizer is au tomatically 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 or power sun-
r oof leading to se rious pe rsonal injury.
~