ECU AUDI S8 2013 User Guide

100 Audi adaptive cruise control and braking guard
(end of a traffic jam or vehicle that has
broken down in traffic).
- Always remember that the radar sensor
for the braking guard works only within
defined detection and range limits that
may prevent the proper detection of oth­
er vehicles.
- The radar sensor's function and range
can be reduced by rain, snow and heavy
spray. Moving vehicles up ahead may not
be promptly detected or may not be de­
tected at all.
- Reflective surfaces including crash barri­
ers or tunnel entrances may impair the
function of the radar sensor.
(D Tips
- You can cancel the braking with increas­
ing force that is initiated by the system
by braking yourself, by accelerating no­
ticeably or by swerving.
- Braking guard error messages
r::> page 100.
-Keep in mind that braking guard can
brake unexpectedly . Always secure any
cargo or objects that you are transport­
ing to reduce the risk of damage or in­
jury.
Settings in the MMI
Applies to vehicles: with Audi adaptive cruise control
• Select: ICARI function button > Car systems
control button > Driver assist > Audi brak­
ing guard.
System -
Switch braking guard On and Off.
When you switch the ignition on, the message
Audi braking guard off appears if the system
is switched off.
Early warning -The distance and approach
warnings in the display can be switched
On/
Off.
Tips
- Your settings are automatically stored
and assigned to the remote control key being used at the time the settings are
made.
- If you switch the ESC to sport mode,
braking guard switches off automatically
~page 200.
- Switch braking guard off when you are
loading the vehicle onto a vehicle carrier,
train, ship or other type of transporta­
tion. This can prevent undesired warn­
ings from the braking guard system.
Messages
Applies to vehicles: with Aud i adapt ive cru ise contro l
ACC unavailable
ACC and braking guard: unavailable
The system cannot detect moving vehicles up
ahead correctly and is switched off. The sen­
sors have been displaced or are not working
properly. The Audi pre sense functions may al­
so be affected. Drive to your authorized Audi
dealer or authorized Audi service facility im­
mediately to have the malfunction corrected.
ACC: unavailable at this time. No sensor vi­
sion
ACC and braking guide: unavailable at this
time. No sensor vision
This message appears if the sensor view is ob­ structed, for example by leaves, snow, heavy
spray or dirt . Clean the sensors
r:> page 93,
fig. 93.
ACC: unavailable at this time. Incline too
steep
The road exceeds the maximum possible an­
gle for proper adaptive cruise control opera­
tion. Adaptive cruise control is switched off .
ACC: only selector lever positions D, S or M
available
Select the D, Sor M selector lever position.
ACC: unavailable at this time. Parking brake
set
The adaptive cruise control system switches
off automatically if the parking brake is set. .,.

110 Audi drive select
the drive se lect mode. Adaptive cruise control
a lso responds to the driving behavior of the
vehicle ahead in a more conservative or sporty
manner.
Engine sound*
The sound of the engine is adapted to the se­
lected mode and ranges from subtle to sporty .
Q) Note
-Make sure there is enough clearance
above and below the vehicle when park­
ing. The height of the vehicle can change
once it is parked due to temperature
fluctuations, changes to the load cond i­
tions and changes to the dr iv ing modes,
which can affect clearance .
- When transporting the vehicle on a car
carr ier, tra in, ship or by other means, on­
l y tie the veh icle down at the running
surface of the tires, which is the outer
ci rcumfe rence . Securing the vehicle at
the axle components, s uspension str uts
or towing eyes is not pe rmitted because
the press ure in the air suspension s truts
can change during transport. The vehicle
may not be sec ured s ufficient ly if this
happens.
- If you are going to tow a trailer, you must activate the trailer ope ration mode
c:> page211.
(D Tips
-In some mode ls, the maxim um vehicle
speed can on ly be reached in the
auto
and dynamic modes.
- Se lecting the
dynamic mode results in
sporty shifting characteristics. The S
gear position engages automatically.
- In vehicles that have dynamic steering*,
operating noise is heard when starting or
stopping the eng ine. This does not ind i­
cate a problem. -
In vehicles w ith sport different ia l* , the
dynamic mode is deactivated when tow­
ing a tra iler.
Selecting the driving mode
You can choose between Comfort, Auto , Dy­
namic and Individual.
Fig. 11 3 MMI : Drive select
.,. To select the mode, se lect the following in
the M Ml :
I CAR I function button > Comfort ,
Auto , Dynamic
or Individual.
You can change the driving mode when the ve­
hicle is stationary or while driving. If traffic
permits, after changing modes, briefly take
your foot off the accelerator pedal so that the recently selected mode is also activated for
the engine.
comfort -provides a comfort-oriented vehicle
setup and is suited for long drives on h igh ­
ways.
auto -provides an overall comfortable yet dy­
nam ic driving feel and is suited for every day
use.
dynamic -gives the vehicle a sporty driving
feel and is suited to a sporty driving style.
individual-c:> page 111.
A WARNING ,...___ -
Pay attention to traffic when operating
Audi drive select to prevent potential risk
of an acc ident.

& WARNING
-Never engage R or P wh ile driving. It
cou ld cause a crash .
-
-Power is sti ll transmitted to the whee ls
when the engine is running at idle. To prevent the vehicle from "creeping", you
must keep your foot on the brake in all
selector lever positions except P and N
when the engine is running. Do not inad­
vertent ly press the accelerator pedal
when the veh icle is stationary . Otherwise
the vehicle will start to move immediate­ ly. This cou ld happen even if the parking
brake is activated.
- Before opening the hood, select the P se­
lector lever position and set the par king
brake. This reduces the risk of a crash. A l­
ways read and follow the applicable
warnings
¢page 226, Engine comport­
ment.
- Never get out of the driver's seat when
the engine is running.
- If you must get out of the vehicle, move
the se lector lever securely into the P po­
sit ion and apply the park ing brake .
@ Tips
-If you un intentionally shift into the N se­
l ector lever position while dr iving, take
your foot off the accelerator pedal and
wait for the engine to slow down until it is idling before you shift into Dor S.
Driving tips
The gears shift outomoticolly .
Starting from a stop
"' Press and ho ld the brake pedal.
.,. Start the eng ine
q page 83.
"' Press the button on the se lector lever and
select the D, S or R selector lever position
¢ page 115.
"' Wait a moment until the transmission
shifts. You w ill not ice a slight movement
when the gear engages .
"' Re lease the brake pedal and press the accel ­
erato r peda l¢ _& .
Aut omat ic Tr ans missio n 11 7
Stopping temporarily
"' Press the b rake pedal to stop the veh icle,
for examp le at a traffic light . Do not press
the acce lerator pedal when doing this .
"' To prevent the vehicle from rolling when
you start driving, set the parking brake
when stopp ing on large inclines¢_& .
"' The parking brake will release automat ically
and the vehicle will start mov ing once you
press the acce lerator pedal.
Parking
If the selector lever is not in the P position
when you open the driver's door, the veh icle
could roll. The message
Transmission: Car
may roll! Shift to park !
appears.
"' Press and hold the brake pedal¢ _& .
"' Set the park ing brake.
"' To engage the P se lector lever position,
press the button on the selector lever and
shift into the P posit ion ¢
page 115 .
Under certa in conditions such as dr iv ing in the
mountains or when towing a trailer, it may be
helpful to switch to manual mode temporarily
to shift
manually to adapt to the dr iving con­
ditions
¢ page 118.
On slopes, activate the parki ng brake first and
then move the selecto r leve r to the P position .
T his prevents too much st ress from be ing
placed on the locking mechanism.
& WARNING
Read and follow all WARNINGS ¢ .&. in Se­
lecting o selector lever position on
page 117.
- The vehicle can also roll when the engine
is stopped.
- Do not press the accelerator pedal when
changing the selec tor lever position
while the vehicle is stationary and the engine is running . This could result in a
crash.
- Never engage R or P while driving . It
could cause a crash.
- Power is still transmitted to the wheels
when the engine is running at idle. To ..,.

120 Automatic Transmission
Parking lock emergency release
The parking lock must be released using the
emergency release before towing the vehicle .
@
Fig. 126 Dr iver's side footwell: releasing t he park ing
lock us ing t he emergency release
Fig. 127 Drive r's s ide footwe ll: resetting th e pa rking
l ock
The emergency release is located under the
floor mat on the driver's side. You operate the
emergency re lease from the dr iver's seat.
Releasing the parking lock using the
emergency release
• To prevent the vehicle from rolling uninten­
tionally, set the park ing brake© ¢
page 85
or press the brake peda l.
.. There are two slits on the cover. Position
the screwdriver from the vehicle tool kit in
one of the s lits on the cover and pry the cov­
er off.
• Pull the band@ in the direction of the ar­
row until the release lever locks in place
¢ fig . 126.
• Fold the uppe r section of the release lever
down into the recess.
Resetting the parking lock
• Press the button @ and the release lever at
the same time . You can now push the lever back into its original pos
ition . Make sure the
lever locks in place
¢fig. 127.
.. Install the cover .
T he indicator light
[O] and the N position indi­
cator in the instrument cluster turn on when
the parking lock is released using the emer­
gency release . The message
Risk of rolling! P
not possible . Please set the park ing brake
a l­
so appears.
A WARNING
If you release the park ing lock using the
emergency release, secure your vehicle
with the pa rking brake or the brake pedal
i f the parking brake is not working. The ve­
hicle can roll away if it is not secured and
cause a crash.

-Passengers must always sit in an upright
position and never lean against or place
any part of their body too close to the
area where the airbags are located.
- Passengers who are unbelted, out of po­
sition or too close to the airbag can be
seriously injured by an airbag as it un­
folds with great force in the blink of an
eye.
- Always make sure that there are at least
10 inches (25 cm) between the front
passenger's breastbone and the instru­
ment panel.
- Always make sure that there are at least
4 inches (10 cm) between the front pas­
senger's knees and the lower part of the
instrument panel.
- Each passenger must always sit on a seat
of their own and properly fasten and
wear the safety belt belonging to that
seat.
- Before driving, always adjust the front
passenger seat and head restraint prop­
er ly.
- Always keep your feet on the floor in
front of the seat. Never rest them on the
seat, instrument panel, out of the win­
dow, etc. The airbag system and safety
belt will not be able to protect you prop­
erly and can even increase the risk of in­
jury in a crash .
- Never drive with the backrest reclined or
tilted far back! The farther the backrests
are tilted back, the greater the risk of in­
jury due to incorrect positioning of the
safety belt and improper seating posi­
tion.
- Children must always ride in child seats
¢
page 176. Special precautions apply
when installing a child seat on the front
passenger seat ¢
page 152.
Driving Safely 137
Proper seating positions for passengers
in rear seats
Rear seat passengers must sit upright with
both feet on the floor consistent with their
physical size and be properly restrained
whenever the vehicle is in use.
To reduce the risk of injury caused by an incor­
rect seating position in the event of a sudden
braking maneuver or an accident, your pas­
sengers on the rear bench seat must always
observe the following:
.,. Adjust the head restraint so the upper edge
is as even as possible with the top of your
head. If that is not possible, try to adjust
the head restraint so that it is as close to
this position as possible¢
page 138 .
.,. Keep both feet flat in the footwell in front
of the rear seat.
.,. Fasten and wear safety belts properly
¢page 147.
.,. Make sure that children are always properly
restrained in a child restraint that is appro­
priate for their size and age~
page 176.
,& WARNING
..-
Passengers who are improperly seated on
the rear seat can be seriously injured in a
crash.
- Each passenger must always sit on a seat
of their own and properly fasten and
wear the safety belt belonging to that seat.
- Safety belts only offer maximum protec­
tion when the safety belts are properly
positioned on the body and securely
latched . By not sitting upright, a rear
seat passenger increases the risk of per­
sonal injury from improperly positioned
safety belts!
- Always adjust the head restraint properly
so that it can give maximum protection.
•
•

The following bulletins list only some sample positions that will increase the risk of serious
in ju ry and death . Our hope is that these exam­
p les will make you more aware of seating po­
sitions that are dangerous.
The refore, wh en ev er th e vehicl e is
mov ing:
- never stand up in the vehicle
-never stand on the seats
- never knee l on the seats
- never ride with the seatbac k reclined
- never lie down on the rear seat
- never lean up against the instrument panel
- never sit on the edge of the seat
- never sit s ideways
- never lean out the window
- never put yo ur feet out the window
- never put yo ur feet on the ins trument panel
- never rest your feet on the seat cushion o r
back of the seat
- never r ide in the footwe ll
- never ride in the cargo area
A WARNING
Imprope r seat ing positions increase the
r isk of se rious personal injury and death
whenever a veh icle is being used.
- Always make sure that all vehicle occu­
pants stay in a p ro per seating pos it ion
and are properly restr ained whenever the
vehicle is be ing used.
Driver and passenger
side footwell
Important safety instructions
A WARNING
Always make sure that the knee a irbag can
inf late without interference. Objects be­
tween yourse lf and the airbag can increase
the risk of injury in an acc ident by interfer­
ing w it h the way the a irbag deploys or by
being p ushed into you as the airbag de­
ploys.
-
Dr iving S afel y 139
-No persons (children) or animals sho uld
ride in the footwell in front of the pas­
senger seat. If the airbag dep loys, this
can result in ser ious or fatal injuries.
- No objects of any kind should be carried
in the footwell area in front of the driv­
er 's or passenger's seat. Bulky objects
(shopping bags, fo r example) can ham­
pe r o r prevent proper deployment of the
airbag. Small obje cts can be thrown
through the vehicle if the airbag deploys
an d inju re you or your passenge rs .
Pedal area
Pedals
The pedals must always be free to move and
must never be interfered with by a floor mat
or any other object.
Make sure that a ll peda ls move free ly without
interference and that nothing prevents them
from return ing to their orig inal positions.
Only use floor mats t hat leave the pedal area
free and can be secured with floor mat fasten­
ers.
If a brake circ uit fai ls, inc reased brake pedal
trave l is required to b ring the vehicle to a f ull
stop .
A WARNING
-Pedals that cannot move free ly can cause
loss of vehicle control and increase the risk
of ser ious injury.
- Never p lace any objects in the drive r's
footwell. An ob ject cou ld get into the
pedal area and interfere with pedal func­
tion. In case of sudde n brak ing o r an ac­
cident, yo u wou ld not be able to b rake or
accelerate!
- Always ma ke sure that nothing can fall
or move into the driver's footwel l. •
•

140 Driving Safely
Floor mats on the driver side
Always use floor mats that can be securely attached to the floor mat fasteners and do
not interfere with the free movement of the
pedals.
~ Make sure that the floor mats are properly
secured and cannot move and interfere with
the pedals ~,&. .
Use only floor mats that leave the pedal area
unobstructed and that are firmly secured so
that they cannot slip out of position . You can
obtain suitable floor mats from your author­
ized Audi Dealer.
Floor mat fasteners are installed in your Audi.
Floor mats used in your vehicle must be at­
tached to these fasteners. Properly securing
the floor mats will prevent them from sliding into positions that could interfere with the
pedals or impair safe operation of your vehicle
in other ways .
_& WARNING
Pedals that cannot move freely can result
in a loss of vehicle control and increase the
risk of serious personal injury.
- Always make sure that floor mats are
properly secured.
- Never place or install floor mats or other
floor coverings in the vehicle that cannot
be properly secured in place to prevent
them from slipping and interfering with
the pedals or the ability to control the
vehicle.
- Never place or install floor mats or other
floor coverings on top of already instal­
led floor mats. Additional floor mats and
other coverings will reduce the size of
the pedal area and interfere with the
pedals .
- Always properly reinstall and secure floor
mats that have been taken out for clean­
ing .
-Always make sure that objects cannot fall into the driverfootwell while the ve­
hicle is moving. Objects can become trapped
under the brake pedal and accel­
erator pedal causing a loss of vehicle
control.
Stowing luggage
Loading the luggage compartment
All luggage and other objects must be prop· erly stowed and secured in the luggage com·
partment.
Loose items in the luggage compartment can
shift suddenly, changing vehicle handling
characteristics. Loose items can also increase
the risk of serious personal injury in a sudden
vehicle maneuver or in a collision.
~ Distribute the load evenly in the luggage
compartment.
~ Always place and properly secure heavy
items in the luggage compartment as far
forward as possible.
~ Secure luggage items using the tie-downs
provided
~ page 69, Luggage comport·
ment.
A WARNING ,_
Improperly stored luggage or other items
can fly through the vehicle causing serious
personal injury in the event of hard brak­
ing or an accident. To help reduce the risk
of serious personal injury:
- Always put objects, for example, luggage
or other heavy items in the luggage com­
partment.
- Always secure objects in the luggage
compartment using the tie-down hooks
and suitable straps.
A WARNING
Heavy loads will influence the way your ve­
hicle handles. To help reduce the risk of a
loss of control leading to serious personal
injury:
- Always keep in mind when transporting
heavy objects, that a change in the cen­
ter of gravity can also cause changes in
vehicle handling:

-Always distribute the load as evenly as
possible.
- Place heavy objects as far forward in
the luggage compartment as possible.
- Never exceed the Gross Axle Weight Rat­
ing or the Gross Vehicle Weight Rating
specified on the safety compliance stick­
er on the left door jamb. Exceeding per­
missible weight standards can cause the
vehicle to slide and handle differently .
- Please observe information on safe driv­
ing
o page 134 .
A WARNING
-
To help prevent poisonous exhaust gas
from being drawn into the vehicle, always
keep the rear lid closed while driving .
- Never transport objects larger than those fitting completely into the luggage
area because the rear lid cannot be fully
closed.
- If you absolutely must drive with the rear
lid open, observe the following notes to
reduce the risk of poisoning:
-Close all windows,
- Close the power roof,
- Open all air outlets in the instrument
panel,
- Switch off the air recirculation,
- Set the fresh air fan to the highest
speed.
A WARNING
Always make sure that the doors, all win­
dows, the power roof and the rear lid are
securely closed and locked to reduce the
risk of injury when the vehicle is not being
used .
- After closing the rear lid, always make
sure that it is properly closed and locked.
- Never leave your vehicle unattended es­ pecially with the rear lid left open. A
child could crawl into the vehicle through
the luggage compartment and close the
rear lid becoming trapped and unable to
get out . Being trapped in a vehicle can
lead to serious personal injury .
-
Driving Safely 141
-Never let children play in or around the
vehicle.
- Never let passengers ride in the luggage
compartment. Vehicle occupants must
always be properly restrained in one of
the vehicle's seating positions .
(D Tips
-Air circulation helps to reduce window
fogging. Stale air escapes to the outside
through vents in the trim panel, on the
left side of the luggage compartment. Be sure to keep these slots free and
open .
- The tire pressure must correspond to the
load . The tire pressure is shown on the
tire pressure label. The tire pressure la­
bel is located on the driver's side B-pillar.
The tire pressure label lists the recom­
mended cold tire inflation pressures for
the vehicle at its maximum capacity
weight and the tires that were on your
vehicle at the time it was manufactured.
For recommended tire pressures for nor­
mal load conditions, please see chapter
opage253 .
Tie-downs
The luggage compartmen t is equipped with
four tie-downs to secure luggage and o ther
items .
Use the tie-downs to secure your cargo prop­
erly
o page 140, Loading the luggage com­
partment .
In a collision , the laws of physics mean that
even smaller items that are loose in the vehi­
cle will become heavy missiles that can cause
serious injury. Items in the vehicle possess en ­
ergy which vary with vehicle speed and the
weight of the item. Vehicle speed is the most
significant factor.
For example, in a frontal collision at a speed
of 30 mph (48 km/h), the forces acting on a
10-lb (4 .5 kg) object are about 20 times the
normal weight of the item . This means that
the weight of the item would suddenly be
•
•

142 Driving Safely
about 20 0 lb s. (9 0 kg ). Y ou can im agine the between you, your dealer, or
inju ries t hat a 200 l bs. (90 kg) item f ly in g
Audi of America, Inc. freely throug h the passenge r com partment
could cause in a collision like th is.
To contact the NHTSA, you may
A WARNING either call:
W eak, damage d or im proper straps us ed
Tel.: 1-888-327-4236 (TTY: to s ecure i tems to t ie-downs ca n fail du r-
ing h ard b ra ki ng o r in a coll isi on and cause
1-800-424-9153) or
se rio us p erso nal inj ury .
1-800-424-9393 - Always use suitabl e mou nti ng straps and
pr operly s ecur e it e m s to th e t ie -dow ns in
or you may write to: t h e lug gage comp art m en t t o help p re -
v en t it ems from sh ift ing o r flyi ng fo r-
NHTSA war d as dang erous missi les.
U.S. Department of Transporta-- Neve r at tach a c hild safety se at te th er
strap to a tie -do wn.
tion
Reporting Safety 1200 New Jersey Ave., S. E.
West Building
Defects
Applicable to U.S.A.
Washington, DC 20590
You can also obtain other infor-
If you believe that your vehicle
mation about motor vehicle
has a defect which could cause
safety from:
a crash or could cause injury or
death, you should immediately http://www.safercar.gov
inform the National Highway
Applicable to Canada
Traffic Safety Admini stration
If you live in Canada and you
(NHTSA) in addition to notify-
believe that your vehicle has a
ing Audi of America, Inc.
defect that could cause a crash,
If NHTSA receives similar com- injury or death, you should im-
plaints, it may open an investi- mediately inform Transport
gation, and if it finds that a Canada, Defect Investigations
safety defects exists in a group and Recalls. You should also no-
of vehic les, it may order a recall
tify Volkswagen Group Canada,
and remedy campaign. Howev- Inc.
....
er, NHTSA cannot become in-
valved in individual problems

Important safety instructions about
safety belts
Safety belts must always be correctly posi­
tioned across the strongest bones of your
body.
~ Always wear safety belts as illustrated and
described in this chapter.
~ Make sure that your safety belts are always
ready for use and are not damaged.
A WARNING
Not wearing safety belts or wearing them
improperly increases the risk of serious
personal injury and death. Safety belts can
work only when used correctly .
- Always fasten your safety be lts correctly
before driving off and make sure all pas­
sengers are correc tly restrained.
- For maximum protection, safety belts must always be positioned properly on
the body .
- Never strap more than one person, in­
cluding small children, into any belt.
- Never place a safety belt over a child sit ­
ting on your lap.
- Always keep feet in the footwell in front
of the seat while the vehicle is being d riv­
en .
- Never let any person ride with their feet on the instrument panel or sticking out
the window or on the seat.
- Never remove a safety belt while the ve­
hicle is moving. Doing so will increase
your risk of be ing injured or killed.
- Never wear belts twisted.
- Never wear belts over rigid or breakable
objects in or on your clothing, such as
eye glasses, pens, keys, etc., as these may cause injury.
- Never allow safety belts to become dam­
aged by being caught in door or seat
hardware .
- Do not wear the shoulder part of the belt
under your arm or otherwise out of posi ­
tion .
Safety belts 147
-Several layers of heavy clothing may in­
terfere with correct positioning of belts and reduce the overall effectiveness of
the system .
- Always keep belt buckles free of anything
tha t may prevent the buckle from latch­
ing securely .
- Never use comfort clips or devices that
create slack in the shoulder belt . Howev­
er, special clips may be requ ired for the
proper use of some child restraint sys­
tems .
- Torn or frayed safety belts can tear, and
damaged belt hardware can break in an
accident. Inspect belts regularly.
If web­
bing , bindings, buckles , or retractors are
damaged, have belts replaced by an au­
thorized Audi dealer or qualified work­ shop.
- Safety belts that have been worn and
loaded in an accident must be replaced
with the correct replacement safety belt
by an authorized Audi dealer . Replace­
ment may be necessary even if damage
cannot be clearly seen . Anchorages that
were loaded must also be inspected.
- Never remove, modify, disassemble, or
try to repair the safety belts yourself.
- Always keep the bel ts clean. Dirty belts
may not work properly and can impair
the function of the inertia reel
c::> page 225, Safety belts .
Safety belts
Fastening safety belts
Safety first -everbody buckle up!
Fig. 161 B el t b uckle and to ngue on the drive r's se at