2010 AUDI S8 ECU

If the ABS, ESP and brake force distribution fail, the ABS indicator
li ght (U SA mode ls)/ ( Can ad a models) and the ESP indica to r
light come on alo ng w it h the brake system malfu nction light
BRAKE (U SA models) /(Ci) (Ca nada models) . The message Brake fault!
Drive carefully to nearest workshop appears in the inst rument
cl uster disp lay and three consecut ive warning tones sound =>& .
(USA models): If the w arning lig ht
BRAKE and the wa rn in g light illu­
minate together, immediately contact your author ized Audi dealer or
qu alifie d wo rkshop to h ave all bra ke p ads in spec ted =>
page 32.
When the light comes on, an a udible war ning s ignal is also given .
& WARNING
• USA models : If the BRAKE warning light, the.,. warn ing light
and the~ S warning light come on together , the rear wheel s
could lock up first under hard braking. Rear wheel lock-up can
cause loss of vehicle control and an accident. Have your vehicle
repaired immediately by your authorized Audi dealer or a qualified
workshop. Drive slowly and avoid sudden , hard brake appli ca­
tions.
• Canada models: If the brake warning light ID, the • warning
light and the ABS warning light
"'1 come on together, the rear
wheels could lock up first under hard braking. Rear wheel lock-up
can cause loss of vehicle control and an accident. Have your vehicle
repaired immediately by your authorized Audi dealer or a qualified
workshop. Drive slowly and avoid sudden, hard brake applica­
tions.
• If the brake warning /indicator light doe s not go out after
a few
second s and the parking brake released, or l ights up while you are
driving, the fluid level in the brake fluid reservoir i s too low. If you
believe that it is safe to do so, proceed immediately at low speed
to the neare st authorized Audi dealer or qualified repair facility
and have the brake system inspected.
• Always keep in mind that after several brake applications, you
will need greater p ressu re on the brake pedal to stop your vehicle .
Do not rely on strained brakes to re spond with maximum stopping
Controls and equip ­
ment Safety first
Instruments and warning
/indicator lights
& WARNING (co ntinued )
power in critical situations . You must allow fo r increased braking
distan ce s. The extra distance used up by fading brakes could lead
to an accident. •
Vehicle care Technical data

Opening and closing
The rear lid can be locked or unlocked either by using the remote
con trol
or by turning the key inside the dr ive r's door loc k. Unl ocking
the vehicle w ith the remote control will only
unlock the rear lid, to
open it, the lid handle needs to be pressed.
Lock ing the vehicle
You c an lock t he veh icle from o uts ide eithe r by using the remote
control
or by turning t he key inside the drivers's door lock . When you
lock the vehicle :
• All doors and the rear lid are locked.
• All turn signa l lights will flash once when the car is locked .
• The anti-theft alarm system is activated . The horn of the anti­
t heft ala rm system w ill sound and the a nti -t heft alarm system readi­
ness lig ht, located in the upper part of the dr iver's door panel, w ill
start to blink.
• The veh icle inter ior lights turn off.
Unlocking and locking the vehicle using the
Convenience key*
Th e Convenience key * feature is a keyless system wh ich all ows yo u to
unlock the vehicle via sensors in the door handle. Loc king is likewise
keyless using a lock b utton. Each door is equipped w it h a sensor and
lock button.
Power side door closer*
The ve hicle is equipped with a power side door closer. When closing a
door, yo u simp ly need to gen tly push on the door. The door wi ll the n
automatically close by itself~
page 45.
Automatic locking
The automat ic lock ing feature locks all the vehicle doors and the rear
lid when you d rive faste r than 9 mph (15 km/h). This fun ction can be
turned on and off in the MMI
Central locking Menu~ page 44.
Yo u can unlock the vehicle from the ins ide by :
• removing the key from the ignit ion sw itch (the ve hicle w ill au to­
matically un lock itself) or •
pressi ng the unloc k part of the power lock sw itch @or
pulling t he door handle (once to open the door).
& WARNING
• When you lock your vehicle from outside, nobody -especially
children -should remain inside the vehicle . Remember, when you
lo ck the vehicle from the out side the windows cannot be opened
from the inside .
• When you leave the vehicle, always remove the ignition key
and tak e it with you. This will prevent passenge rs (children, for
example) from accidentally being locked in the vehicle should
they accidentally pre ss the power lo cking switch in the doors .
• Do not leave children ins ide the vehicle unsupervised . In an
emergency it would be impossible to open the doors from the
out side without the key .
[ i ] Tips
• In the event of a crash w it h ai rbag deployme nt all locked doo rs
w ill be automat ically u nlocked to give access to the vehicle occupants
from the outside.
• If the powe r lock ing system s hou ld malfunction, you ca n lock each
door indiv idually using the ve hicl e key ~
page 46.
• If the power locking system should fail, yo u can still open the fuel
t ank flap in an emergen cy ~
page 287 .
• You are well advised not to keep valuables ins ide an unattended
veh icle, v is ib le or no t. Even a prope rly loc ked vehi cle c anno t provide
the security of a safe .•

(]] Tips
When locking, all doors and the trunk lid are locked automatically. •
Applies to veh icles: with power side doo r closer
Doors with power side door closer
Th e ve hicle doors are equipped with a power door closer. When you
wa nt t o close an open door, gently push on the door. The door will
automatically close by itself.
& WARNING
When closing a door, make sure nothing can interfere with the
door. This could cause serious personal injury.
• You can stop the door from closing at any time by pulling on
the inside or outside door handle. •
Locking and unlocking the vehicle from
inside
The vehicle can be locked or unlocked from the inside
using the power locking switches.
Con tro ls a nd e quip ­
m en t
Fig. 29 Drive r's door:
power locking switch
Vehicle OP-eration
Opening and closing
Fig. 30 Rear power
locking switch
How to lock all doors and the rear lid
simultaneously
- Press upper part of the power locking switch t'.D ~ &.
How to unlock all doors and the rear lid
simultaneously
- P ress the lower part of the switc h@.
How to unlock each door separately using the
door handle
- Pull the handle to open the door.
You will find a power locking switch in each door. You can lock and
unlock
the vehicle using the switches in the driver's or passenger's
door=> fig. 29. You can only
lock the vehicle using the switches in the
rear doors => fig. 30. If you lock the vehicle using the
power locking
switch,
please note the following:
• You cannot open the doors or the rear lid from the
outside
(increased security, for examp le when you are stopped at a red light).
• The diodes in the power locking switch illuminate when all the
doors and the rear lid are closed and locked .
• All diodes turn dark as soon as one of the doors has been
unlocked .
Vehicle care Do-it-yourselt service iTechnical data

Seats and storage
Luggage compartment
Tie-down eyelets
The luggage compartment is equipped with four tie-down
eyelets to secure luggage and other items.
Fig. 93 Luggage
compartment tie­
down eyelets
Use the tie -down eyelets to secure your cargo properly
=> fig. 93 -arrows-.
- Read and heed all WARNINGS=>
page 193, "Stowing
luggage" .
In a collision, the laws of physics mean that even smaller items that
are loose in the vehicle will turn into heavy missiles that can cause
serious injury . Items in the vehicle pick up kinetic energy wh ich varies
with the vehicle 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 the equivalent of about 200 lbs (90 kg). One can
easily imagine the injur ies that an item of that weight flying freely through the passenger compartment can cause in a collis
ion at a
speed considered relatively low.
& WARNING
Weak, damaged or improper straps used to secure items to tie­
downs can fail during hard braking or in a collision and cause
serious personal injury.
• Always use suitable retaining straps and properly secure items
to the tie-downs in the luggage compartment to help prevent
items from shifting or flying forward.
• Never attach a child seat tether strap to a tie-down . •
Elastic cargo net
The cargo net prevents light objects from sliding around
in the luggage compartment.
Fig. 94 Luggage
compartment cargo
net ...

Fig. 95 luggage
compartme nt cargo
net attached to
mou nting hooks
Securing objects to the luggage
compartm ent floor with the net
- Lay out the cargo net in the luggage compartment.
- Engage all four hooks into the fastening eyelets
~ page 90, fig . 94.
- Place objects to be secured under the net .
Configuring the net to restrain small objects
- Lay out the cargo net in the luggag e co mpartment.
- Engage all four hooks into the fastening eyelets
~ page 90, fig . 94.
- Pull down the mounting hooks © located below the base
of the rear w indow .
- Connect each loop on the net to the corresponding hook as
illustrated~ fig. 95.
- Place items inside the net .
Mounting ho oks
There are two mounting hook s under the base of the rear window
inside the l uggage compartment. You can attach the ca rgo net as well
as
light objects to these hooks.
Con trol s and equ ip­
m ent Vehicle
OP-eration
Seats and storage
The mounting hooks are spring-loaded and will return to their normal
posit ion when not i n use .
& WARNING
For str ength-re lated r eason s, the m ounting h ooks c an only be
used to s ecur e object s weighing up to 1 0 lb . (5 kg). Heavier
obj ects w ill not be adequatel y secured -there i s a ri sk of injur y.•
App lies to ve hicl es : wit h sk i sac k
Ski sack
Use the ski sack to transport and protect skis and other
long, light items in the passenger compartment.
Vehicle care
0
Fig . 96 Lu ggage
compa rtment sk i sack
h atch
Fig. 97 Sk i sa ck :
s ecu rin g
Do-it-yourselt service iTechnical data

Seats and storage
Load the ski sack from the luggage compartment .
Loading
-Open the luggage compartment lid and clear a space in
the center .
- Press the release button for the sk i sack hatch in the
luggage compartment and pull down the hatch
~ page 91, fig . 96.
- Fo ld out center armrest in the rear seat backrest .
- Press th e re le ase button on the lid from inside the v ehicle,
and then lower the lid .
- Pull out and unfold the ski sack.
- Load s kis or simi lar objects through t he luggage compart-
ment into the interior of the vehicle~& .
Securing
- Insert the ski sack strap © ~ page 91, fig. 97 in the
center buck le
@ .
- Pull t he sa fety belt taut on the free end of the belt@.
Securing in vehicles with power individual
rear seats*
- Loop the sk i sac k safety belt around the center armrest.
- Pu ll the safety bel t ta ut on the free end of the be lt.
Stowing
- In t he luggage compartme nt, close the ski sack hatch.
- F old the ski sack carefully and stow away.
- Close and engage the inne r hatch .
& WARNING
• The ski s ack is intended only for the transportation of skis and
other light object s. To redu ce the ri sk of serious per sonal injury ,
never transport heavy or pointed objects in the ski sack.
• When braking rapidly or during an accident, the load could be
d isplaced and cause injury to occupants .
• Sharp edg es on the load must be covered for prot ection .
Alw ays f aste n the belt t ightly a round the s ack and its contents
=> page 91 , fig . 97.
[ i ] Tips
N ever stow the ski sack aw ay when it is still we t or damp ( for ex ample ,
snow melt ing from skis). Allow it to dry completely before stow ing it
away .•
Roof rack
First things first
A roof rack can be fitted to carry additional luggage on
the roof.
- A lways read a nd follow the instruct ions provided by the
roof rack manufacturer when the roof rack system must
be ins ta lled.
If a roof rack or simila r luggage carrying equipment is to be installed,
please note the following :
• T o enh ance the vehi cle's st ream lined des ign, rain gu tters have
been molded into the roof. It is not possible to use normal roof racks.
On ly insta ll a roo f rack specifica lly designed fo r your model A 8.
Contact the nearest Audi dea ler for information on approved modular
roof rac ks for your vehicle. .,

Seats and storage Loading the roof rack
Always dis tribute loads evenly . Make sure anything on
the roof rack is securely tied do wn.
- Always distribute the loads on the roof rack evenly .
- Always attach items to t he roof rac k securely before you
drive
off .
The maximum permissible roof weight is 220 lb (100 kg ). The roof
we igh t is made up of the weight of the roof rack system and the
we ight of the object be ing transported.
When using a roof rack system which has a lower load ca rrying
capac ity, you must not use up the total maxim um permissible load
carrying capacity specified above . Instead, you shou ld load the roof
ra ck system only to the maximum capacity specified by the manufac­
turer of the roof rack system.
& WARNING
Weak, damaged or improper straps used to secure items to the
roof rack can fail during hard braking or in a collision and cause
seriou s personal injury.
• Make sure the roof rack is installed ex actly as specified above
~ page 93 .
• Always use suitable mounting straps for se curing items to the
roof rack to help prevent items from shifting or flying forward.
• Items on the roof rack must always be se curely mounted.
• The use of a roof rack can negatively affect the way a vehicle
handles . Ca rgo that is large , heavy, bulky , long o r flat will ha ve a
greater negative influence on the vehicle' s aerodyn amics, center
of gra vity and ove rall handling. Alw ays drive slowly, a void sudden
braking and maneuvers when tran sporting cargo on th e roof of
your veh icle.
& WARNING (contin u ed )
• Never e xceed the maximum permi ssible load carrying capacity
of the roof of your vehicle, the permi ssible a xle weights and the
permissible total weight of your vehicle~
page 3 5 7, "Weights".
• Alway s drive slowly, avoid sudd en braking and maneuv ers
when transporting cargo on the roof of your vehicle.
'£> For the sake of the environment
Sometimes it may be easier to leave a roof rack installed even tho ugh
you a re not using it. Due to the inc reased air resistance your veh icle
w ill unnecessarily use more fuel. Remove the roof rack if you are not
going to use i t. •
Cupholder
Cupholder in center console
The cupholder is located under a cover.
Fi g. 99 Cente r
c on sole: ( uph old er
- To o pen the cu pholder, p ress the forward edge o f the
cover.
Two beverages can be carried in the cupholde r.

Automatic transmission Ill
----------------
The selector lever must be in Nor P . If one o f the dr iv in g positions is
e n gag ed a saf ety s witch will prev ent th e engin e from b eing sta rt e d.
S ee also~
page 119.
Be fore you move t he se lecto r lever from t he P position , yo u m ust
a lw ay s a ppl y the b rake pedal before and while depr ess ing the bu tton
in t he handle of the selector lever.
_& WARNING
• Unintended vehicle movement can cause serious injury.
- When the selector lever is
in a driving position, the vehicle
may creep, even at idle speed. Therefore do not release the
parking brake or foot brake until you are ready to move,
because power is transmitted to the wheels as soon as a driving
position is engaged.
- Do not accelerate while selecting a driving position. At this
time the engine must be at idle speed so that undue stress is
not placed on the clutches in the transmission.
- Remember : · even when stopped briefly with the automatic
transmission in "D" or "R", engine power is being transmitted
to the wheels. Your vehicle could "creep " forward or backward.
When stopped, keep the brake pedal fully depressed and use
the parking brake if necessary to keep the vehicle from rolling.
• If the selector lever is unintentionally moved into N while you
are driving, take your foot off the accelerator pedal and wait for
the engine to return to idle speed before selecting a driving posi­
tion .
• Never shift into "R" or "P" when the vehicle is in motion.
• Never get out of the driver's seat when the engine is running.
• If you must get out of the vehicle , move the selector lever
securely into the P position and apply the parking brake firmly.
• If the engine must remain running, never have any driving
position engaged when checking under the hood. Make sure the
selector lever has securely engaged and is locked in "P" with the
parking brake firmly set~
page 281, "Engine compartment ".
Controls and equip ­
ment Safety first
& WARNING
(cont inued)
Otherwise, any increase in engine speed may set the vehicle in
motion, even with the parking brake applied. •
Selector lever positions
This section descr ibes the select or lever posi tions and
dr iv ing ranges .
Fig. 169 Display in
the instrument cl uster :
selector lever
in posi­
tion D
Th e sele cto r lever p osition eng ag ed a ppe ars n ext to t he se le cto r lever
as well as in the i nstr ument cluster display. A lso, the cur rent gear
en gage d is s hown i n positions D a nd 5.
P -Park
In t his se le cto r lever p osit io n th e tran smi ssion i s m ec hanicall y
loc ked. Engage
P o nly when the vehicle is completely stopped~ &
in "Driving the autom ati c transmis sion " on page 154.
To shift in o r o ut of position P , yo u must first pre ss and hold the brake
peda l
and then press t he release button in t he se lecto r leve r hand le
while moving the sel ecto r le v e r to or fro m
P. Y ou ca n shift out of this
posit ion on ly with t he i gnit io n on .
R -Reverse
Th e transm ission wi ll automat ica lly se lect t he lowest gear ratio w hen
you s hift in to reverse . ..,_
Vehicle care Technical data