2015 AUDI S8 instrument cluster

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prevent the vehicle from "creeping", you
must keep your foot on the brake in all
selector lever positions except P and N
when the eng ine is running. Do not inad­
vertently press the accelerator pedal
when the veh icle is stationary. Otherwise
the vehi cle will s tart to move immediate­
ly, even if the park ing brake is set. This
cou ld result in a crash.
- Do not ride the brakes or p ress the brake
peda l too often or too long when dr iv ing
down a hill. Constant braking causes the
brakes to overheat and substant ially re­
duces b raking performance, increases
braking distance or ca uses comp lete fail­
ure of the brake system.
Hill descent control
The hill descent control system assists the
driver when driving down declines.
H ill descent control is activated when these­
lector lever is in D/S and you press the brake
pedal. The transmission automatically selects
a gear that is suitab le for the incline. Hill de­
scent control tries to maintain the speed ach­
ieved at the time of braking, within physical
a nd techn ical limitations.
It may st ill be nec­
essary to adjust the speed with the brakes.
H ill descent control switches off once the de­
cline levels out or you press the accelerator
pedal.
Hill descent control is also activated when the
speed is set by starting the cruise contro l sys­
tem c::>
page 90.
A WARNING
Hill descent control can not overcome
phys ical limitations, so it may not be able
to main tain a constant speed under a ll
condi tions. Always be re ady to app ly the
br akes.
Automatic Tra nsmi ssi on 11 7
Shifting manually
The shift paddles allow the driver to shift the
gears manually .
Fig . 1 26 Steer ing w heel: sh ift ing manually
.,.. To shift to a h igher or lowe r gear tempo rari­
ly, tap the
0 or 0 shift padd le c::> fig. 126 .
.. To switch manua l mode on, press the~
button . An Mand the gear that is currently
engaged appear in the instrument cluster
disp lay @ c::>
page 114, fig. 123.
.. To shift up one gear, tap the right shift pad­
dle
0 c::> fig . 126 .
.. To sh ift down one gear, tap the left shift
paddle Q.
.. To switc h manua l mode off, press the~
button aga in, or
.. Move the selector lever back and release it .
T he transm iss ion automatically sh ifts up or
down before cr itical engine speed is reached.
The transm iss ion only allows manual sh ifting
whe n the eng ine speed is w ith in the pe rmit­
ted range.
The engine braking effect increases when you
downshift when going downhill.
Kick-down
Kick-down enables maximum acceleration.
When you press the accelerator pedal down
beyond the resistance point, the automatic
transmission downshifts into a lower gear, de­
pending on veh icle speed and eng ine RPM .
It
shifts up into the next higher gear once the
maximum specified engine RPM is reached . ..,.

Parking lock emergency release
The parking lock must be released using the
emergency release before towing the vehicle .
®
Fig. 127 Driver's s ide footwell: re lea sing t he park ing
lock us ing the emergency release
Fig. 128 Driver's s ide footwell: resettin g th e pa rk ing
lock
The emergency release is located under the
f loor mat on the driver's s ide. You operate the
emergency re lease from the driver's seat.
Releasing the parking lock using the
emergency release
.,. To prevent the vehicle from rolling uninten­
tionally, set the parking brake
«e)) q 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 slits on the cover and pry the cover
off .
.,. Pull the band@ in the direction of the ar­
row until the release lever locks in place
qfig . 127 .
.,. Fold the uppe r section of the re lease lever
down into the recess.
Resetting the parking lock
.,. Press the button @ and the release lever at
t h e same time . You can now push the lever
Automatic Transmission 119
back into its original position. Make sure the
lever locks in place ~
fig. 128.
.,. Install the cover .
T he indicator light
mJ 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 parking brake
al­
so appears .
.&_ WARNING
If you release the park ing lock using the
emergency release, secure your vehicle
with the parking 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 .

158 Airbag sys te m
- Never put the forward-facing child re­
straint up aga inst or very near the instru­
ment panel.
- Always move the passenger seat into its
rearmost position in the seat's fore and
aft adjustment range, as far away from
the a irbag as poss ible, before installing
the forward-facing child restraint. The backrest must be adjusted to an upr ight
posit io n.
- Make sure that the
PASSENGER AIR BAG
OFF
light comes on and stays on all the
t ime whenever the ignition is switched
on.
Advanced Airbag System components
The front passenger seat in your vehicle has a
lot of very important parts of the Advanced
Airbag System in it. These parts include the
weight-sensing mat, sensors, wiring, brack­
ets, and more. The function of the system in
the front passenger seat is checked by the
electronic control un it when the ign it ion is on .
The control unit mon itors the Advanced Air­
bag System and turns the airbag indicator
l ight on whe n a malfunction in the system
components is de tected. The function of the
ai rbag indicator light is described in greater
detai l be low . Because the front passenger
seat contains important parts of the Ad­
vanced A irbag System, you must take care to
prevent it from be ing damaged. Damage to
the seat may prevent the Advanced Airbag for
the front passenger seat from doing its job in
a crash .
The front Advanced Airb ag System
con sis ts of the following:
- Crash sensors in the front of the veh icle that
measure veh icle acceleration/deceleration
to provide information to the Advanced Air­
bag System about the seve rity of the c rash.
- An electron ic co ntro l unit, w ith integ rated
crash sensors for fron t and side impacts.
T he contro l unit "dec ides " whether to fire
the front airbags based on the information received from the crash sensors . The contro l unit also "decides" whether the sa
fety be lt
pretensioners shou ld be activated.
- An Advanced Airbag with gas generato r and
contro l valve for the driver inside the steer­
ing wheel h ub.
- An Advanced Airbag with gas gene rator and
contro l valve inside the instrument panel for
the front passenger .
- A weight -sensing mat under the upho lstery
padding of the front passenger seat cushion
that measures the total weight on the seat.
The informat ion registered is sent continu­
ously to the electronic control unit to regu­ late deployment of the front Advanced Air­
bag on the passenger side.
- An airbag monitoring system and indicator
light in the instrument cluster~
page 161 .
-A sensor in each front seat registers the dis­
tance betwee n the respective seat a nd the
steer ing whee l o r inst rument panel. The in­
formation registered is sent cont inuous ly to
t he ele ctron ic contro l uni t to regula te de­
p loyment of the front Adva nced A irbags .
- The
PASSENGER AIR BAG OFF light comes
on and st ays on in the center of the instr u­
ment p anel
~page 162, fig. 168 and t ells
you when the front Advanced Airbag on the
passenger side has been turned off .
- A sensor below the safety be lt latch for the
front seat passenger to measure the tension
on t he safety be lt . The tension on the safety
be lt and the weight registered by the
weight-sensing mat he lp the control unit
"decide" whether the front airbag for the
front passenger seat should be turned off or not
~ page 153, Child restraints on the
front seat -some important things to
know.
- A sensor in the safety belt latch fo r the driv­
er and fo r the fro nt seat passenger that
senses whether that safety bel t is latched or
no t and transmi ts this information to t he
electronic control unit.
A WARNING ~ -
Damage to the front passenger seat can
prevent the front airbag from work ing
properly.

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If the front passenger seat is not occupied,
the front airbag will not deploy, and the
PAS­
SENGER AIR BAG OF F
light will stay on. Nev­
er insta ll a rearward-fac ing ch ild restra int on
the front passenger seat, the safest place for
a child in any kind of child restraint is at one
of the seating positions on the rear seat
¢ page 153, Child restraints on the front seat
- some important things to know
and
¢ page 174, Child Safety .
If the PASSENGER AIR BAG OFF light c omes
on
when one of the conditions listed above is
met, be sure to check the light regularly to
make certa in that the
PASSENGER AIR BAG
O FF
ligh t stays on cont inuous ly whenever the
ignition is on . If the
PASSENGER AIR BAG
OFF
light does not appear on and does not
stay on all the time, stop as soon as it is safe
to do so and
- reactivate the system by switc hing the igni­
tion off and then switching it on again;
- remove and reinstall the chi ld restraint .
Make sure that the child restraint is properly
insta lled and that the sa fety be lt for the
front passenger seat has been correct ly
ro uted th roug h the child restraint as descri­
bed in the chi ld restraint manufacturer 's in­
structions;
- make sure that the convertible locking fea­
ture on the safety be lt for the front passen ­
ger seat has been activated and that the
safety belt has been pulled t ight . The belt
mus t not be loose o r have loops of slack so
that the senso r below the safety be lt latch
on the seat can do its job ¢
page 184.
-make su re that th ings that may increase the
weight of t he ch ild and child sea t are no t be­
ing transported on the front passenger sea t;
- make su re that the safety be lt tension sen­
so r is not b locked . Shake the safety be lt
latch on the front passenger seatbac k and
forth;
- If a st rap or tether is being used to tie the
child seat to the front passenger seat , make
s ur e that it is not so tig ht that it ca uses the
weight-sensing mat to meas ure more
weight than is actually on the seat.
A irbag system 163
If the PASSENGER AIR BAG OFF light still
does not come on
and does not stay on con­
ti nu ous ly (when the ignition is switched on),
- take the child restra int off the front passen -
ge r seat and install it properly at one of the
rear seat positions. Have the airbag system
inspected by yo ur Audi dealer immed iate ly .
- move the child to a rear seat position and
make s ure that the c hild is properly restrain­
ed in a ch ild rest ra int that is appropriate for
its si ze and age.
T he
PASSENGER AIR BAG OFF lig ht sho uld
NOT come on when t he ignitio n is on and an
adult is s itting in a proper seating position on
the front passenger seat. If the
PASSENGER
AIR BAG OFF
light comes on and stays on or
flashes fo r about 5 seconds wh ile driving, un­
der these c ircumstances, make sure that:
- the adult on the front passenger seat is
properly seated on the center of the seat
cushion with his or her back up aga inst the
backrest and the backrest is not recl ined
¢ poge 134, Prope r occupant seating posi­
tions,
-the adult is not tak ing weight off the seat by
holding on to the passenger assist handle
a bove the fron t passenger door o r su pport­
ing their weight on the armres t,
- the safe ty be lt is be ing properly wo rn and
t ha t the re is no t a lot o f sla ck in the safety
be lt webb ing ,
- acce sso ry sea t covers or cushions or other
t hings tha t may cause an in correct reading
or imp ression on the weight-sensing mat
unde r th e upho lstery of the seat have been
removed from the front passenger seat,
- a safety belt extender has not bee n left in
the safety be lt latch for the front passenger
seat.
I n add ition to the
PASSENGER AIR BAG OFF
li ght in the center of the instrument panel,
the message
PASSENGER AIR BAG OFF or
PASSENGER AIR BAG ON wi ll briefly appear
i n the instrument cluster disp lay. This is to in­
form the dr iver of the current front passenge r
a irbag status.
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@ Tips
Your vehicle may be equipped with Audi
connect. Your use of certain Aud i connect
features req uires wireless serv ices that are
provided by a third party wireless telecom­
municat ions provider. For details regard­
ing how information obtained through
Aud i connect is collected, processed,
transmitted, used, and shared, please see
your contra ct w ith the wire less telecom ­
municat ions provider and the "About A udi
connect" tab in your vehicle's MMI:
!MENU !
button > Audi connect > About Audi con·
nect .
Electronic Stabilization
Control (ESC)
Description
ESC helps to improve road holding and vehicle
dynamics to help reduce the probability of
skidd ing and loss of veh icle control. It works
only when the eng ine is running. ESC detects
certain difficult driv ing s ituations, including
when the vehicle is beginning to spin (yaw)
out of cont ro l and helps you to get the vehicle
back under control by select ively brak ing the
wheels, and/or red ucing engine powe r and
p roviding steering assistance to help hold the
ve hicle on the driver's intended course . The in­
dicator light
m in the instrument cluster
blinks when ESC is taking action to help you
control the vehicle.
ESC has limitations.
It is important to remem­
ber that ESC cannot overcome the laws of
phys ics. It will not a lways be able to help out
under all conditions you may come up against.
For example, ESC may not always be able to
h elp you master situat ions where there is a
sudden change in the coefficient of fr iction of
the road surface. When there is a sect io n of
d ry road that is s udden ly cove red with water,
slush o r snow, ESC canno t perform the same
way it would on the dry su rface.
If the vehicle
hydroplanes (rides on a c ush ion of wate r in­
stead of the road surface), ESC wi ll not be
ab le to he lp you steer the veh icle because con-
Int ellig ent technolog y 197
tact with the pavement has been interrupted
and the vehicle cannot be braked or steered .
D uring fast corner ing, particular ly on wind ing
roads, ESC cannot always deal as effectively
with difficult dr iv ing s ituations than at lower
speeds. When towing a trailer, ESC is not able
to help you regain control as it would if you
were not tow ing a trailer.
Always adjust your speed and driving style to road, traffic and weather conditions . ESC can­
not override the vehicle's physical lim its, in­
crease the availab le tract ion, or keep a veh icle
o n the road if road departu re is a result of
driver ina ttent io n. Instead , ESC imp roves the
poss ibility of keep ing t he vehicle under con­
trol and on the road during extreme maneu­
vers by using the driver's steering i nputs to
help keep the vehicle go ing in the intended di­
rect ion. If you are traveling at a speed that
causes you to run off the road before ESC can
provide any assistance, you may not experi­
ence the benefits of ESC.
ESC includes and/or works together with the
anti-lock braking system
(ABS), brake assist
system, anti -slip regulation (ASR), electronic
differential lock (EDL), dynam ic steer ing* and
selective wheel torque contro l. ESC is switch­
ed on all the time. In cer tain situations when
yo u need less traction, yo u can switch off ASR
by press ing the b utton above ~
page 199,
fig. 188 the se lector lever. Be sure to switch
ASR on again when you no longer need less
traction.
Anti -lock braking system (ABS )
ABS prevents the whee ls from loc king up
when b rak ing. The vehicle can st ill be stee red
even during hard braking . App ly steady pres­
su re to the brake peda l. Do not pump the ped­
al. A pulsing in the brake pedal indicates that
the system is helping you to brake the vehicle.
Brake assi st sy stem
T he brake ass ist system can dec rease braking
distance . It increases braking power when the
driver presses the brake peda l quickly in emer­
gency s ituations. You must press and hold the
brake pedal unti l the situation is over. In
I),
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.. Loosen the loop C? fig. 193 from the retaine r
and then pull on t he loop carefully
~CD-
.. Press on the left s ide of the fuel filler door
to open C?page 223, fig. 190.
(D Note
Only pull on the loop until you feel resist­
ance. You will not hear it release . Other­
w ise you could damage the emergency re­
lease mechanism .
Selective catalytic
reduction
General information
Applies to vehicles: with d iesel e ng in e
On vehicles w ith select ive catalytic reduction,
an urea solut ion (Ad Blue) is injected into the
exhaust system befo re a nitrogen oxide cata ­
lytic converter to reduce nitrogen emiss ions .
The AdBlue is stored in a separate tank in the
ve hicle. The Ad Blue usage accounts for ap­
prox imately 0 .5% to 1.2% of the diesel fuel
that is used .
You must refill the Ad Blue or have it refilled by your authorized Audi dealer or qualified
workshop as soon as the Ad Blue refill mes ­
sage appears in the instrument cluster
C? poge 226.
,& WARNING
Failure to hee d Ad Blue refi ll information in
t he ins trument cl uste r can preven t the ve­
hicle from being s tarted and d rive n. If the
vehicle cannot be driven and an eme rgency
ar ises, persona l injury can occur.
- Always have the Ad Blue tank refilled well
before the tank runs dry .
@ Tips
-The ins trument clus ter display indi cates
the distance remaining that ca n be driv­
en
C? page 225 . If the Ad Blue tank is
complete ly empty, the engi ne will not
start again after the ignition is switched
off.
Fu el suppl y and filli ng your fuel t ank 225
- Ad Blue is req uired by law to ope rate this
vehicle .
Indicator in the instrument cluster
display
Applies to vehicles: wit h diese l engine
The display indicates if the Ad Blue level is low
or if it was filled incorrectly.
Fi g. 194 In strume nt cl uste r: indicator in the d isp lay
AdBlue level low
You w ill be informed if t he Ad B lue in the tank
drops below a certa in level.
Please refill Ad Blue. Range 1500 miles
( 2400 km )
This indicator appears when there is on ly
enough AdBl ue left to drive the distance indi­
cated in the driver information system. Please
add AdBlue.
AdBlue /; Refill AdBlue! Cannot start en­
gine in 600 miles (1000 km) ! See owner 's
manu al
This indicator appears when there is only
enough Ad Bl ue left to d rive the distance indi­
cated in the driver information system. Please
add AdBl ue. Otherwise the engine will not
start again if you stop it once the distance in­
dicated has been driven.
Refill AdBlue! No rest art! See
owner's m anual
T his message appears w hen the Ad Blue tank
is empty. P lease ad d Ad Blue. Otherwise you
will not be able to start the eng ine again once
you stop it. ..,.

226 Fuel supply and filling your fuel tank
When the minimum AdBlue leve l has been
reached, you must add Ad Blue ¢
page 226.
¢-fi Filling incorrectly
If the Ad Blue tank was filled with a different
fluid than Ad Blue and the system detects that
it is incorrect, a message w ill appear.
Ad Blue../ AdBlue: Sy stem fault No restart
in 600 miles (1000 km)! See owner's man­
ual
This message appears when it is only poss ible
to drive the distance indicated in the dr iver in­
formation system. Drive to the nearest quali­
fied workshop to have the malfunction re­
pa ired. Otherwise the engine will not start
again if you stop it once the distance ind icated
has been driven.
Ad Blue: System fault No restart!
See owner's manual
This message appears if the system detects it
was filled incorrect ly. Drive immed iately to
the nearest qualified workshop to have the
malfunction repaired. Otherwise you will not
be ab le to start the engine again once you
stop it.
Filling AdBlue
Applies to vehicles: with diesel engine
A special refill bottle must be used to fill the
AdBlue .
Fig. 195 Rig ht rear vehicle s ide: removing the Ad B lue
filler cap
Fig. 196 AdBl ue fille r tube: inse rti ng the refill bottle
The Ad Blue filler tube is located near the d ie ­
sel fi ller tube . Always add 1 ga llon (3.8 liters)
of Ad Blue (two bott les) . Th is is the minimum
amount required to ensure the system detects
the refill ing and to start the engine . You can
add a maximum of approxima tely 4 gallons
(16 liters).
Opening the filler tube and adding
AdBlue
Requirement: The request to add Ad Blue must
appear in the instrument cluster display.
" Switch the ignition off.
"O pen the tank cover
r::!> page 223.
"Tur n the Ad B lue filler cap counterclockwise
to remove it
r::!> fig. 195.
"Remove the cap from the refill bottle .
.. Position the refill bottle on the filler tube
and turn the bottle clockwise until it stops
turning (Dr:!>fig .196 .
" Press lightly against the bottom of the bot­
tle @to empty it. Continue pressing the
bottom of the bottle until it is empty or un­
til flu id stops flowing into the tank.
" Turn the bottle to the left w ithout pressing
on the bottom.
Closing the filler tube
" Turn the AdB lue fi ller cap clockw ise on the
fi ller tube until you hear it engage.
" Close the tank cover.
After filling
The vehicle must be driven. The system may
take up to two minutes to detect that the
AdBlue has been f illed. .,.

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~ If there was no Ad Blue left in the tank and a
range of
O mi (0 km ) was displayed in the
instrument cluster, switch the ignition on
for about 15 seconds before starting the en­
gine.
_& WARNING
Ad Blue can irr itate the skin, eyes and res­
piratory system . If there is contact with
the fluid, flus h immed iately with plenty of
wate r. Consult a physician if necessary.
(D Not e
-Only use Ad Blue that conforms to the
standard ISO 22241-1. Do not mix any
additives with the Ad Blue and do not di­ l ute it with water .
- Do not add Ad B lue to the diesel tank or
add diesel fuel to the Ad Blue tank. M ix­
i ng can lead to damage to the engine
and the Ad Blue tank system . The Limited
New Vehicle Warranty does not cover
such damage.
- Ad Blue attacks surfaces such as painted
vehicle components, plastic and carpet.
Remove the fluid as quick ly as possib le
with a damp cloth and plenty of cold wa­
ter. If the Ad Blue has already crystal­
lized, use warm water and a sponge.
AdBlue residue that is not removed w ill
crystall ize and can damage the affected
surface.
- Do not store the refill bottle in the vehi­ cle. If it leaks, the escap ing Ad B lue could
damage the vehicle inter ior.
- Do not allow Ad Blue to come into con­
tact with clothing. If there is contact
with the flu id, flush immediately with
plenty of water.
(D Tips
- You can obtain refill bott les from any au­
thorized Audi dealer or other qua lified
workshop.
- Follow the AdBl ue manufacturer's in­
str uctions for usage and sto rage.
Fu el su ppl y and fi lling yo ur fu el t an k 22 7
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