2016 AUDI S8 Owners Manual

Putting the fuel c ap back on
"' After filling your tank , tw ist the f uel fi ller cap
clockwise as far as it wi ll go .
"' Close the fuel filler flap.
To avoid fuel spill ing o r evaporating from the f uel
tank always close fuel filler cap properly and
comp let ely. An improperly closed fue l filler cap
may a lso caus e the MIL lamp ¢
page 28 to come
on (only vehicles with gasoline engine).
A WARNING
Improper refueling or handling of fuel can
cause fire, explosion and severe burns .
- Fuel is highly f lammable and can cause se­
vere burns and other injur ies.
-
- Failure to shut the engine off wh ile refuel ­
ing and/or to insert the pump no zzle fully
into the fuel filler neck could cause fuel to
spray out of filler neck or to overflow . Fuel
spray and overflowing fue l can cause a fire .
- Never use a cellular telephone wh ile refuel­
ing . The electromagnetic radiation can
cause spa rks that can ignite fuel vapors and
cause a fire.
- Never get back into your vehicle while refu­
eling .
If in except io na l circumstances you
must get back in you r vehicle while refue l­
ing, make certain tha t you close the door
and touch meta l to discharge static electric­
ity before touchi ng the filler nozz le again.
Static electricity can ca use spa rks that can
ignite fuel vapors released during refueling .
- Never smoke o r have an open flame any­
where in or near your vehicle when refueling or filling a portable f uel container.
- For yo ur safety , we strongly recommend
that you do not travel with a portable fue l
conta iner in your vehicle. The conta iner, full
or empty may leak and could cause a fire,
especially in a crash .
-If, under exceptional c ircumstances, you
must transport a portable fuel container,
please observe the follow ing :
- Neve r fi ll a portable fuel containe r wh ile i t
is anywhere in or on the vehicle (for exam ­
p le, in the luggage compartment, or on
the trunk) . Static e lectr icity can build up
Fuel and R efueling
whi le filling and can ignite fuel vapors
caus ing a fire .
- Always place a portab le fue l container on
the ground before f illing.
- Always keep the fi ller nozzle comp lete ly
inside the po rtable container before and
during f illing.
- If filling a portable container made of
metal, the filler nozz le m ust always be in
contact with the container. This will he lp
prevent stat ic electricity from discharging
and cause a fire .
- Never spill fue l inside the vehicle or lug­
gage compartment. F uel vapors are highly
flammable .
- Always observe local and state/prov incial
laws regarding the use, storage and trans ­
po rtation of fuel co nta iners.
- Make ce rtain t he f uel container meets in­
dust ry standards (ANSI/ ASTM F852-86) .
(0 Note
If any fuel has sp illed onto the car, it should
be removed immed iately to p revent damage
to the pa int.
@ For the sake of the environment
As soon as the correctly operated noz zle
switches off automatically for the first time,
the tank is fu ll. Do not try to add more fuel
because f uel may sp ill out . In add it ion, the
expans ion space in the fuel tank will be fi lled -
causing the fue l to overflow when it becomes
warm and po llute the environment.
(D Tips
- Runn ing your engine while refuelling may
cause vapors to escape or even ca use fue l to
spill out of the tank. This wo uld then shut
off the f uel no zzle befo re t he t ank is f ull.
- Do not ref ue l your veh icle with the ignition
switched on . The fuel gauge m ay o therwise
no t indicate the co rrect fuel leve l after refu­
elling.
- Diesel vehicles* are equ ipped wi th a die sel
m isf ueli ng pro tector . It a llows the vehi cle
to be fuele d only with a d iesel fue l pump .,.
215

Fuel and Refueling
nozzle. A worn or damaged nozzle or a noz ­
zle that is too small may not be ab le to open
the diesel m isfueling protector. If th is is the
case, try turning the nozzle before inserting
i t in the fuel f iller neck, use a different fuel
pump or see your authorized Audi dealer or
authorized repair facility for ass istance.
- The fuel filler flap of your vehicle is not
locked when you lock the veh icle from the
i nside .
Fuel filler flap emergency release
You can open the fuel filler flap by hand if the
power locking system should fail.
F ig . 190 Vehicles w ith se lect ive cata lytic reductio n: Right
side tr im pane l
Fig. 191 Right side trim panel in the lu ggage compart ·
ment: e mergency release mechan is m
...,
"' 9 ::i: ... (D
The emergency release mechanism is located be­
hind the right side trim panel in the luggage
compartment. In vehicles with selective catalytic
reduction*, remove the vent grille first :
.. Press both tabs@¢
fig. 190 and tilt the vent
gri lle downward. You can then remove the
grille upward.
.. Loosen the loop¢
fig. 191 from the retainer
and then pull on the loop carefully ¢(D.
216
.. Press on the left side of the fuel filler door to
open
¢ page 214, fig. 188.
(D Note
Only pull on the loop until you feel resistance .
You wi ll not hea r it re lease . Otherwise you
could damage the emergency release mecha­ nism.
Selective catalytic reduction (Ad Blue)
General information
Applies to: vehicles with selective catalytic reduction (SCR)
In vehicles with selective catalytic reduction, a
urea solution (AdBlue) is injected into the ex­
haust system before a nitrogen oxide catalytic
converter to reduce nitrogen emissions .
The Ad Blue is carried in a separate tank in the ve­
hicle. The AdBlue usage accounts for approxi­
mately 0.5% to 1.2% of the diesel fuel that is
used.
When a message about Ad Blue appears in the in­
strument cluster display, you must refill the
Ad Blue yourself or have it refilled by an author­ ized Audi dealer or author ized Audi Service Facili­
ty
¢ page 217.
@ Tips
-The instrument cluster display indicates the
distance remaining that can be driven
¢page 216. If the AdBlue tank is com­
pletely empty , the eng ine will not start
again after the ign ition is switched off.
- Ad Blue is required by law to operate th is ve­
hicle.
Messages in the instrument cluster display
Applies to: vehicles with selective catalytic reduction (SCR)
The display indicates if the Ad Blue level is Low or
if there is a system malfunction .
AdBlue level low
You will be informed if the AdBlue in the tank
drops below a certain level.

Please refill Ad B lue . Range 1500 mi (2400 km )
This message appears when there is only eno ugh
Ad Blue lef t to d rive the distance indicated in the
d river information system . Fill the AdBlue.
AdBlue ,0 Refill AdBlue! No re start in 600 mi
( 1000 km )! See owner 's manual
This message appea rs when there is only eno ugh
Ad Blue left to drive the distance indicated in the
driver info rmation system . Fill the Ad Blue . Ot he r­
wise the eng ine will not sta rt again if you s top it
once the d ist an ce in dicate d ha s been d riven. You
can also check t he remai ning dis tance in the on­
board com puter.
Refill Ad Blue! No restart! See own-
er's manual
This message appears whe n the AdBlue ta nk is
empty . Fill the AdB lue. Otherwise you will not be
ab le to s tart the engine aga in once yo u stop it.
The AdBlue must be refilled when t he amount in
the tank has reached the minimum level
q page 217, Filling Ad Blue.
Incorrect filling /system malfunction
A message appears if the AdB lue tank was filled
with a fluid other than AdBlue and the system
has detected that the tan k was fi lled incor rect ly,
or if there is a system malfunction .
Ad Blue -I' Ad Blue: System fault! No restart in
600 mi (1000 km ). See owner's manual.
This message appears when it is only poss ible to
drive the d istance ind icated in the dr iver informa­
tion system. Drive to t he nearest authorized Aud i
dealer o r authorized Aud i Serv ice Facility to have
the ma lfunction co rrected. Otherwise the engine
w ill not start agai n if you stop it once the d is­
tance ind icated has been driven .
AdBlue: System fault No restart!
See owner's manual
This message appears if the system has detected
that the tank was filled inco rrectly o r that there
i s a malfunction . Drive immediately to the near­
est authorized Aud i dea le r or authorized Aud i
Service Facility to have the malfunction correct-
Fuel and Refueling
ed. Ot herwise you wi ll not be able to star t the en ­
gine again once yo u stop it .
Filling AdBlue
Applies to : veh icles w ith selec tive catalytic re du ctio n (SCR)
Fig. 192 Right rear s ide of the ve hicle: re m ov ing t he A d Bl­
u e cap
The Ad Blue tank open ing is located near t he d ie­
sel tank opening. Add at least 1.5 gallons (5. 7L)
of Ad B lue . Thi s is the minim um amount requ ired
to ensure the system detects the refi lling and to
sta rt the eng ine. You can add a maxim um of 4
g allo ns ( 16L) .
Requireme nt: Th e reques t to add Ad Blue m ust
appear in the instrum ent clus te r disp lay .
.,. Switch t he ignit ion off.
.,. Open the tank door ¢ page 214 .
.,. Tu rn the cap on t he tank opening to the left to
remove ¢fig . 192.
.,. Fill t he A d Bl ue w ith the bottle ¢ page 218 or
t he ca n iste r ¢p age 218.
WARNING
A d Bl ue can irrita te the s kin, eyes an d re sp ira­
tory system. If there is contact with t he f lui d,
fl ush immed iate ly w ith plenty of water . Con­
sult a phys ician if necessary.
(D Note
- Only use Ad Blue th at con forms to t he
s tandar d ISO 2 22 41-1. Do not m ix any addi­
tives with the Ad Blue and do not dilute it
w ith wate r.
- Ad Blue must not be filled in the diese l ta nk
and diese l fue l must not be filled in the
217

Fuel and Refueling
Ad Blue tank. If the wrong fluid is filled in
the tank, do not start the engine under any
circumstances. If yo u do, you risk damaging
the tank system and the engine. See an au ­
thorized Audi dealer or authorized Audi
Service Fac ility for assistance .
- AdBlue attacks surfaces such as painted ve­
hicle components, plastic and carpet. Re­
move the fluid as quickly as poss ible with a
damp cloth and plenty of cold water. If the
Ad Blue has already crysta llized, use wa rm
water and a sponge. Ad Bl ue residue that is
not removed will crystallize and can damage
the affected surface.
- Do not store refill bott les or canisters per­
manently in the vehicle . If the container
l eaks, the escaping AdBlue could damage
the vehicle interior.
- Do not allow AdBlue to come into contact
with clothing. If there is contact with the
flu id, f lush immed iate ly w ith plenty of wa­
ter.
(D Tips
Follow the Ad Blue manufacturer's instruc ­
tions for use and storage .
Refilling Ad Blue with a bottle
Applies to: veh icles w ith selective catalyt ic reduction (SCR)
"'Remove the cap from the refill bottle c> A in
Filling Ad Blue on page 217,
¢ @) in Filling
AdBlue on page 21 7.
"' Pos ition the bottle on the filler tube and turn
the bottle clockwise until it stops turning .
"'Pr ess lightly against the bottom of the bottle
to empty it. Continue press ing the bottom of
the bottle until it is empty or until fluid stops
flowing into the tank.
"' Remove the bottle and close the filler neck
c> page 219, Completing AdBlue refill .
(D Note
Only use refill bottles that are approved for
your vehicle. Using other systems can cause
Ad Blue to leak.
218
(D Tips
-You can obtain refi ll bott les from an author­
ized Aud i dea ler or authorized Audi Service
Facility.
- A permitted refill bottle contains approxi­
mately 0.5 gallon (1.9 liters) of AdBlue.
· Refilling Ad Blue with a canister
App lies to : vehicles with selective cata lyt ic r educt ion (SCR)
®
+®
Fig. 193 Canis te r w ith attachab le hose
N ::> "' Remove the cover on the refill canister¢ A in
Filling AdBlue on page 217, ¢(Din Filling
AdBlue on page 217.
"' Secure the end of the hose (Don the opening in
the canister @by turn ing the hose to the right.
"' Remove the cap @from the other end of the
hose @.
"' Posit ion the end of the hose @on the filler
neck in the vehicle and turn the hose to the
r ig ht to tighten it.
"' Lift the canister up and then tip it. Continue
holding the canister in a tipped position until it
is empty or until no more fluid flows into the
tank.
"' Remove the canister and close the filler neck
¢ page 219, Completing AdBlue refill.
(D Note
Only use refill canisters that are approved for
your vehicle. Using other systems can cause Ad Blue to leak .
0) Tips
-An authorized Audi dealer or authorized
Audi repair facility can tell you which refill
canisters are approved for your vehicle .

-A permitted refill canister contains approxi ­
mately 1.3 gallons (5 liters) of Ad B lue .
Completing AdBlue refill
Applies to: veh icles with selective catalyt ic reduction (SCR)
Cl os ing the fill er ne ck
~ Turn the Ad Blue cap to the r ight on the fill er
tube unti l the cap clicks into place ¢
A in Fill­
ing Ad Blue on page 217,
¢ CD in Filling Ad Blue
on page 217 .
~ Then press on the left side of the tank door un -
t il you hear it lock.
After filling
T he vehicle must be driven so that the system
recogni zes th at the Ad Blue was refilled. Th is
process can take several minutes.
~ If there was no Ad Blue left in the tank and a
range of
O m i (0 km ) was shown in the display,
switch the ign ition on for about 30 seconds be­
fore starting the engine.
Ad Blue can freeze at very low temperatures. If th is happens, the system will not detect
that the Ad Blue was refilled and it wi ll contin ­
ue to inform yo u of the low Ad Blue level. The
message turns off as soon as the tank thaws
out again .
Fuel and R efueling
219

Checking and Filling
Checking and Filling
Hood
Releasing the engine hood
The engine hood is released from inside the vehi­
cle .
Fig. 194 Driver footwell : release leve r
Fig. 195 Ro cker switc h under the hood
Make sure the wiper arms are not raised up from
the windshield . Otherwise the paint could be
damaged .
.. With the driver's door open, pu ll the lever un ­
der the instrument panel in the direction of the
arrow ¢
fig. 194.
.. Raise the hood slightly Q _A .
.. Press the rocker switch under the hood upward
Q fig. 195. This releases the catch.
.. Open the hood.
A WARNING
Hot engine coo lant can burn you .
- To reduce the risk of be ing burned, never
open the hood if you see or hear steam or
coolant escaping from the eng ine compart­
ment. Wait unt il no steam or coolant can be
220
seen or heard before carefully open ing the
hood.
Working in the engine compartment
Be especially careful whenever you work in the
engine comportment.
Whenev er yo u mu st perform an y work in the
engin e compartment , for exampl e chec king and
filli ng d iffe rent fl uids , the re is a ri sk of injur y,
bu rn s and accid ent s. T o preven t perso na l injur y
alway s obse rve the foll owing WARNING S. The
en gine compartment o f an y v ehicl e is a haz ard ­
ou s a rea
Q _6 .
A WARNING
To help avoid injury, before you check any­
thing under the hood:
- Turn off the engine .
- Switch off the ignit ion.
- Apply the parking brake.
- Move selector lever to "P" (Park).
-Always let the eng ine cool down. Hot com-
ponents will burn skin on contact .
-
-To redu ce the risk of being burned, never
open the hood if you see or hear steam or
coo lant escaping from the engine compart­
ment . Wait until no steam or coolant can be
seen or heard before carefully opening the
hood.
- Keep children away from the engine com­
partment .
- Never sp ill fluids on hot engine compo­
nents. They can cause a fire.
- Never touch the radiator fan. The auxiliary
electric fan is temperature controlled and
can switch on suddenly.
- Never open the coolant reservoir cap when
the engine is sti ll warm. The coolant system
is pressurized and hot coolant could spray
out.
- Protect your face, hands and arm from
steam or hot engine coolant by placing a
thick rag over the cap when you open the
coolant reservoir .

-Do not remove the engine cover under any
circumstances. This increases the risk of
burns.
- If work on the fuel system or the electrical
system is necessary:
- Always d isconnect the battery.
- Never smoke or work near heaters or open
flames. Flu ids in the engine compartment
could start a fire.
- Keep an app roved fire ext inguisher imme­
d iate ly availab le.
- To avo id electr ical shock and personal injury
wh ile the eng ine is running or being started,
never touch:
- Ignition cables
- Other components of the high voltage
electronic ignition system.
- If you must perform a check or repa ir with
the engine running:
- First, fully apply the parking brake, move
selector lever to "P" (Park).
- Always use extreme caution to prevent
cloth ing, jewelry, or long hair from get­
ting caught in the radiator fan, V-belts or
other mov ing parts, or from contacting
hot parts. Tie back ha ir before starti ng,
and do not wear clothi ng that will hang or
d roop into t he engine.
- Min imize exposu re to emission and chem i­
cal hazards¢ .&.-
_& WARNING
California Proposition 65 Warn ing:
- E ngine exhaust, some of its constituents,
and certain vehicle components contain or
em it chem ica ls known to the St ate of C ali­
f orn ia to cause cancer and bi rth de fects and
reproductive harm . In addition, certain flu­
ids contained in ve hicles and certain prod­
ucts of component wear contain or emit
Ch eck ing and Filling
chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm.
- Battery posts, term inals and related acces­
sories contain lead and lead compounds,
chemicals known to the State of Californ ia
to cause cancer and reproductive harms.
Was h hands afte r handling .
([) Note
When adding flu ids, always make sure that
they are poured into the proper co nta iner or
fille r opening, otherwise serious damage to
vehicle systems w ill occur.
® For the sake of the environment
To detect leaks in time, inspect the veh icle
floor pan from unde rneath regularly . If you
see spots from oil or other veh icle fluids, have
your vehicle inspected by an authorized Audi
dealer.
Closing the engine hood
.,.. Pull the hood down un til the press ure from the
struts is reduced.
.,.. Let the hood
drop down and latch in p lace . Do
not try to push it shut;
it may fail to engage
¢ _& .
_& WARNING
--A hood that is not completely latched co uld
fly up and block your view while driv ing.
- When you close the engine hood, check it to
make sure the safety catch has properly en­
gaged . The hood s hou ld be flush with the
sur rounding vehicle body parts.
- If you notice while driv ing that the hood is
not secured properly, stop at once and close
it.
-
221

Checking and Filling
Engine compartment
Engine compartment overview
These are the most important items that you can check.
Fig. 196 Typical layout for con tainers and engine oil filler cap
2ij.A.97 Layout of the reservo ir, engine oil filling opening and oil dipst ick for the W12 engine