2014 AUDI S8 check engine

Instruments and warning/indicator lights 21
switched on and will turn off after the engine
has started and has sett led at a constant idle
speed . This ind icates that the MIL is working
properly .
The warning light illuminates when there is a
malfunction in the engine e lectronic system .
Contact your author ized Audi dealer and have
the malfunction corrected .
An improperly closed fuel filler cap may also
cause the MIL light to illuminate
¢page 225.
For mo re in format ion ¢ page 29.
~. Diesel particulate filter clogged
Appl ies to vehicles: with d iesel e ngine and diese l pa rticu ­
late fi lte r
II Particulate filter : System fault See own­
er's manual
When the Ill symbol illuminates, you can al­
ter your driving style to assist the filter self­
cleaning process. Drive for approximately 15
minutes with the selector lever in the 5 posi­
tion at a minimum speed of 37 mph (60 km/
h) and an engine speed of approximately
2,000 RPM. The temperature increase that
will resu lt from this can burn off the soot in
the filter . The symbol will switch off when the
cleaning is successful. After a successful
cleaning , there is no need to bring the car to
an author ized dealer or qualified workshop
because this is part of normal vehicle ope ra­
tion .
If the symbol
&I does not switch off, see
your author ized dealer or other qualified
workshop to have the prob lem corrected.
For more informat ion on the d iesel particu­
late filter , refer to¢
page 208.
A WARNING
Always adapt your speed to the current
weather, road and traffic conditions. You
should never disobey traffic laws in order
to follow driving recommendations.
-
!'1 Engine speed limitation
App lies to veh icles: w it h e ngine speed lim itat io n
(II Engine speed maximum XXXX RPM
The engine speed is automatically limited to
the speed d isplayed in the driver information
system. This protects the engine from over·
heating.
The engine speed limitation deactivates once
the engine is no longer in the critical tempera­
ture range and you have re leased the accelera­
tor pedal once.
If the engine speed limitation was activated
by an engine control malfunction, the indica­
tor light
lli also turns on. Make sure that the
speed does not go above the speed disp layed.
Drive to your authorized Audi dealer immedi­
ate ly to have the malfunction corrected.
~v, Engine oil sensor
Ill Oil level! Sensor defective
If the symbol illum inates, contact your au­
thorized Audi dea le r and have the oil sensor
inspected. Until you have this done, check the
oi l level each time you refue l just to be on the
safe side¢
page 236.
Bu Fuel level indicator
Ii') Please refuel
If the indicator light turns on for the first
time and the message appears, there are
about 4 gallons (15 liters) of fuel left in the
tank. Time to refuel
q page 224.
Ii] Tank system malfunction! Contact dealer
If th e indicator light turns on and this mes­
sage appears, there is a malfunction in the
tank system.
D rive to your authorized Audi dealer immedi­
ate ly to have the malfunction corrected.
II Please refill washer fluid

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 .

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.
~

68 Seats and storage
Full-length center
console
Overview
Appl ies to vehicles: with full-len gth ce nter console
Fig. 65 Rear: full -length center console
@ · 115 volt socket ¢ page 68
@ · cupholder <=> page 75
© · 12 volt socket c:> page 7 4
@ · Folding table ¢ page 69
® ·center armrest and storage com part ·
ments: to open the deep compartment, press
the r ight button and fo ld the center armrest
upward. To open the compartment fo r the
massage func tion remote con trol*
c:> page 64
and fo r the telephone* , press the left button
and fo ld the center armrest upward.
115-volt socket
App lies to vehicles: with 115 -vo lt socket
The 115-vo lt socket can only be used when
the engine is running¢
A. When you push
the connector all the way into the socket, the
child safety mechan ism releases and current
flows through the socket .
Equipm ent that can be conn ected
Electrical devices can be connected to the 115
volt socket in the veh icle. Power consumption
at the 115-volt socket must not exceed 150
watts (300 watts peak) . Check the power con·
sumpt ion of the equipment on the model
p late .
LED on th e socket
- The socket is ready for use when the L ED is
green.
- If the LED blin ks red, there is a ma lf u nction.
The socket wi ll swi tch off automa tica lly due
to overcu rrent or overheating. The socke t
will switch on again automatica lly after a
coo l-down period. Any devices that are con­
nected and switched on will activate again
automatically
c:> A .
A WARNING
-
- The sockets and the electr ical accessories
connec ted to them operate only when
the ignition is switched on. Incorrect us­
age can lead to ser ious injuries or burns.
To reduce the risk of injuries, neve r leave
chi ldren unattended in the veh icle with
the vehicle key .
- H eavy equipment or plugs with in tegrat­
ed power s upply units can damage the
socket and lead to injur ies .
- Sto re a ll connected e quipment securely
while the veh icle is moving so that they
cannot be thrown through the veh icle in
the event of a braking maneuver or an
accident.
- Never sp ill any liquids on the socket . If
any mo isture gets into the socket, make
certain that all the moisture has dried up before using the socket again.
- Equipment that is connected to the vehi·
cle socket can heat up more than it does
when connected to the public gr id .
- When us ing adapters and extens ion
cords, the child safety for the 115-volt
socket is d isabled and the socket is live.
- Never insert anything other than the
p lug of an appropriate e lectr ical accesso·
ry in to the socket, especially th ings that
conduct e lectr icity, e.g . meta l pens, kn it­
ting needles, etc. in to the cont acts of the
1 15-volt so cket.
- Turn the electrical equ ipment off if the
socket has switc hed off because of over·
heat ing.

- the temperature in the luggage compart­
ment is below 131 °f (55 °C). The cooler
switches off automatically if the tempera­
ture in the luggage compartment exceeds 131 °f (55 °C) . Once the temperature falls
below 131 °f (55 °C) again, the cooler
switches on aga in automat ically .
- t he battery is adequately charged . The cool­
er switches off automatically if the vehicle
battery voltage falls below a minimum lev­
el. This prevents the batte ry from discha rg­
i ng . The cooler switches back on again auto­
matically when the battery voltage increases
again (e.g . after starting the engine).
The cooler cools to 42.8 °f
(+ 6 °C) and the
freezer cools to 21.2 °f (- 6 °C) in opt imum
cooling cond itions . Th e cooling performance
is affected by the temperature in the luggage
compartment. The temperature inside the
cooler will be higher if the luggage compart­ ment is hot.
A WARNING
To avoid putting the occupants at any risk, please observe the following safety rules:
- The maximum capacity is 2.5 kg (5.5
lbs.).
- Never overload the cooler. This could cause injury in the event of a collision or
sudden braking.
- The coo ler lid must always be kept closed
while you are driving. Make sure the re­
taining catch is securely engaged . The
contents of the coo ler could be thrown
forward into the passenger compart­
ment in the event of a collision or under
sudden braking - risk of injury!
- Inflammable liquids, gas canisters, etc.
must not be stored in the cooler -risk of
exp losion! This also includes any prod­
ucts that might emit volatile or inflam­
mable gases.
- Liquids will freeze at temperatures at or
below 32 °f (0 °C) and may cause glass
bottles to burst!
Seats and storage 77
(D Note
-The venti lation openings for the cooler
are located on the back pane l trim in the
luggage compartment and
must be kept
clear at all t imes.
- If the cooler is not functioning properly, switch it off to prevent further damage.
Have it checked by a qualified workshop .
Operation
Applies to vehicles: wit h coo ler
Fig. 80 Rear ce nter ar mrest
The cooler is located in the rear cabin behind
the center armrest or behind the sliding cover (depending on the equipment fitted in your
vehicle) . The cooler and freezer only work
when the ignition is on .
Opening / closing the cooler
.,. To open the cooler , pu ll the release lever@
c:!> fig. 80.
.,. To close the cooler, push the lid back into its
original position . You should hear the re­
lease lever(!) engage if the lid is properly
closed.
Switching on /off
.,. Press button @ r:!> fig. 80 to switch the cool­
er on/off. The symbol in the button is lit
when this function is activated .
.,. Press button
@ to switch the freezer on/off .
The symbol in the button is lit when this
function is activated .

90 On the road
Engine will not swit ch off
Before each stop phase, the system checks i f
certain cond itions have been met. For exam ­
p le, the engine will
n ot be switched off in the
following situations:
- T he eng ine has not reached the minimum
required temperature for Start -Stop-mode .
- The inter io r temperature selec ted by the A/C
system has not been reached .
- T he outs ide temperature is extremely h igh/
low .
- T he w indshield is being defrosted
¢page 82.
-The parking system* is switched on.
- The battery charge level is too low .
- The steering wheel is sharply turned or
there is a steering movement.
- After engaging the reverse gear.
- On sharp inclines.
The
tiij indica to r light appears in the informa­
tion line in the ins trument cluster disp lay
<=:>fig . 89 .
Engine automatically restarts
The stop phase is interrupted in the following
situations, for examp le. The engine restar ts
witho ut any act ion by the driver.
- T he interio r temperature varies from the
temperature selected in the A/C system .
- The w indshield is being defrosted
<=:> page 82.
- The brake pedal is pressed several times i n a
row .
- The battery charge level becomes too low .
- High power consumption.
Sw itching the ignition automatically
To prevent the battery from d raining, the igni­
tion will switc h off
automat ically when a ll of
the following conditions have been met:
- T he veh icle has already been driven.
- T he eng ine has been tu rned off by the Star t-
Stop-System*.
- The driver's door is opened.
- The driver's seat belt is removed.
- The brake pedal is not pressed dow n. -
The vehicle is stationa ry .
In this case, the activated low beam will be re­
placed by the side ma rke r lights. The s ide
marker lights w ill switch off after approxi­
mately 30 minutes or when you lock the vehi ­
cle .
If the Star t-Stop System h as n ot turned off
the engine or if you have sw itched the Start­
Stop system off man ua lly, the ignition will
not
be automatica lly switched off and the engine
will continue to ru n ¢ ,& .
A WARNING
=
Never allow the engine to run in confined
spaces -danger of asphyxiation.
(D Tips
If you shift into the D, Nor S posit ions af­
ter sh ifting into reverse, the vehicle must
be driven faster tha n 6 mph (10 km/h) in
order for the engine to sw itch off again.
Switching the Start-Stop -System on/off
manually
App lies to vehicles: wi th Start-Stop -System
If you do not wish to use the system, you con
switch it off manually.
F ig . 90 Ce nter console: Start-Stop -System button
.,. To swi tch the Start-Stop-Sys tem off/on
manually, p ress the
l(A) ~·I button. The L ED in
the button turns on when the system is
switched off .

@ Tips
-ABS and AS R on ly wor k co rrectly when
a ll fo ur wheels are eq uipped w ith identi­
ca l tires . Different tire s izes can lead to a
r educt io n in eng ine power.
- You may hear noises when the sys tems
desc ribed are working.
Switching on and off
Intelligent technology 201
- If the ind ica tor li ght DJ o r til1 (U SA
mo dels)/ [!] (Canada models) appea rs,
there may be a malfunc tion
r:::> page 19,
¢page 18.
ESC turns on automatically when you start the engine.
Fig . 188 Center co nsole with ESC O FF bu tton
ESC levels
Sport mode on
The following si tua tions are exceptions whe re
it may be usefu l to switch o n sport mo de to
allow the w heels to spi n:
- Rockin g the vehicle to free it when i t is st uck
- Dr iv ing in deep s now o r on loose g ro un d
- Dr iving with snow chains
Sport mode off
Behavior
T he E SC and AS R sta bilization f unct io ns The fu ll sta biliz ati on f uncti on o f the ES C
are limited¢ ,&.
Operation Press the [ru button .
Indicator II turns on .
lights
Driver mes· Stabilization control (ESC): Sport
sages Warning! Reduced stability
A WARNING
Yo u should o nly sw itch sport mo de on i f
your dr iv ing abili ties and road cond itions
permit.
- The stabilization function is limited
when sport mode is sw itched on. The
dr iv ing whee ls co uld spin and the vehicle
cou ld swe rve , especially on slick or slip ­
pery road surfaces.
(D Tips
Sport mode cannot be switched o n when
adapt ive cr uise c ontrol* is sw itched on.
-
and AS R is availab le again .
Press the
[ru button again .
II tur ns off.
Stabilization control (ESC): On
Braking
General information
What affects braking efficiency?
Operating conditions and driving habits
The bra ke s on today's au to m obiles a re s till
sub ject t o wear, depe nding la rgely o n ope rat ­
i ng con dit ions and d riving habits¢
A . On
vehicles that are either driven most ly in stop­
and-go city traff ic or are driven hard , the
brake pads should be checked by your author­
ized Audi dealer more often than specif ied in
t h e
Warranty & Maintenance booklet . Failure .,..

202 Intellig ent technol ogy
to have your brake pads inspected can result
in reduced brake performance.
On steep slopes, yo u shou ld use the b rak ing
effect of the engine. Th is way, you prevent un­
necessary wear on the brake system. If you
must use your brakes, do not hold the brakes
down continuously. P ump the brakes at inter ­
vals.
Operating nois e
Noises may occur when braking depending on
the speed, braking force and outside condi­
tions such as temperature and humidity.
E ff ect of water and road salt
In certain situat ions, for example after driving
through water , in heavy ra in , after overn ight
condensation or after washing your car, the braking effect can be reduced by moisture or
ice on the brake rotors and brake pads. The
brakes must be dried first with a few careful
brake applications.
At higher speeds and with the windshield wip­
ers turned on, the brake pads press against
the brake rotors for a short amount of time.
This occurs at regular intervals without the
driver noticing and provides for bet ter brake
response time under wet condit ions .
The effectiveness of the brakes can be reduced
when the vehicle is dr iven on a salt-covered
road and the brakes are not used . Likew ise,
you clean off accumulated salt coating from
brake discs and pads with a few caut ious ap­
plications of the brake
9 .&, .
Cor ro sion
There may be a tendency for dirt to build up
on the brake pads and corrosion to form on
the discs if the car is not dr iven regularly or
only for short t rips with little use of the
b rakes .
If the brakes are not used frequently , or if cor­
rosion has formed on the discs, it is advisable
to clean off the pads and discs by braking
firm ly a few times from a mode rately high
speed
9 .&, .
Faults in the brake syste m
If you shou ld notice a sudden increase in
brake pedal trave l, then one of the two brake
circuits may have fai led
9 & .
Low bra ke fluid lev el
Malfunctions can occu r in the bra ke system if
the b rake fluid level is too low. The brake flu id
level is monitored electro nica lly.
Brake lining we ar statu s
Brake lining wear may be checked by visual in­
spect ion of the condition of the brake pads
th rough the open ings in the wheel. If neces ­
sary, the wheel may be removed for t his i n­
spect ion
9 page 2 72, Changing a wheel.
A WARNING
- You shou ld perform braking maneuvers
for the purpose of cleaning the brake system only if road conditions permit.
Other road users must not be put at risk -
you may cause an accident!
- Before descending a steep grade, reduce
speed and sh ift transmission into a lower
gear or lower dr iving range. Do not ride
the brakes or hold the pedal down too
long or too often . This could cause the
b rakes to get hot and diminish braking
efficiency.
- Do not "ride the brakes" by rest ing your
foo t on the pedal when you do not intend
to brake. This may cause the brakes to
overheat, premature wear and increased
stopping distance.
- Unde r certain cl imatic and operat ing
conditions such as passing thro ugh wa ­
ter, driving in heavy rain or after washing
the vehicle, the effectiveness of the brakes can be reduced. In winter, ice can
accumu late on the brake pads, linings,
d iscs and drums. Carefully app ly brakes
for a test. Brakes will dry and ice coat­ ings will be cleaned off after a few care­
fu l brake applicat ions.
- Driving for an extended period of t ime on
salt-covered roads without using your brakes can a lso affect bra king efficiency.
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