2012 AUDI S8 engine oil

224 Check ing and filling
With all these variab les coming in to p lay, no
standard rate of oil consumption can b e es­
tablished or specif ied. There is no alternative
to regular and frequent checking of the oi l lev­
el, see
Note .
If the ye llow engin e oi l level warning symbol
in the instrument cluster
1\1 li ghts up, you
should check the o il level as soon as possible
¢
page 224 or ¢ page 225. Top off the oil at
your earliest convenience¢
page 225.
A WARNING
Before yo u check anything in the engine
compartment, always read and heed all
WARN INGS
¢ .&. in Working in the engine
compartment on page
219.
(D Note
Dr iving with an insuffic ient oi l level is like­
ly to ca use seve re damage to the eng ine .
{D) Tips
-The oil pressure warning display. is
not an indicator of the oil lev el. Do not
r ely on it . Instead, check the oil level in
your engine at regular intervals, pref ­
erably ea ch time you refuel , and always
befor e going on a long trip .
-If yo u have the impres sion you r engine
consumes excessive amo unts o f oi l, we
r ecommend that yo u consult your Audi
dealer to have the ca use of yo ur concern
properly diagnosed . Keep in mind that
the accurate measurement of oil con­
sumption requires great care and may
take some time . Your Audi dealer has in­
str uctions about how to measure oil con­
sumption accurate ly .
Checking the engine oil level
Applies to veh icles: w ith oil level indicator
Fig. 17 6 Display : o il leve l in dicator
.,. Par k yo ur vehicle on a level surface.
.,. Shut the eng in e off when it is warm.
.,. Switch on ly the ignition back on .
.,. Wait approx imately two minutes.
.,. Select:
!CAR ! function button> Car systems
contro l butto n > Servicing & che cks > Oil
level.
.,. Check the oil level i n the display ¢ fig. 176.
Add eng ine o il if the bar o f th e oil leve l ind i­
cato r is near "min"¢
page 225.
Depend ing on the way the vehicle is dr iven
and t he ope ra ti ng cond it ions, oi l consu mption
can be up to 1/ 2 quart pe r 600 miles (0 .S liter
per 1,000 km) . Consumption may be hig her
within the first 3,000 miles (S ,000 km) .
(D Tips
The oil leve l indic ato r in t he MMI Disp lay is
on ly an information display.
If the oi l level
i s low, a minimum oil war ning appea rs in
the instr ument cluster. Add oil
¢
page 225. If the hood has been opened,
the cur rent oil level is shown in t he instru­
ment cluster the next t ime the ignition is
swi tched on.

Checking the engine oil level
App lies to vehicles: with o il dipstick
Fig. 177 Oil dips tick: mark ing fields
Before you check anything in the engine com­
partment,
always read an heed all WARN­
INGS
r=> poge 219.
Determining the oil level
• Park your vehicle on a leve l surface.
• let the engine run in idle briefly while it is
at operating temperature and then shut the
engine off.
• Wait approximately two minutes.
• Remove the oil d ipst ick . Wipe off the oil
dipstick with a clean cloth and insert it all
the way in aga in .
• Remove the dipstick again and then read
the oil level
r=> fig. 177. Add engine oil if nec­
essa ry
r=> page 225.
Oil level in the G) area
• Do not add any oil.
Oil level in the @area
• You may add oil. After adding oil, the level
should be in the
G) area.
Oil level in the 0 area
• You must add oi l. After adding oil, the leve l
shou ld be in the
G) area .
Depending on the way the vehicle is driven
and the operating conditions, oil consumption
can be up to 1/2 quart per 600 miles (0.5 liter
per 1,000 km). Consumption may be higher
within the f irst 3,000 miles (5,000 km) . Be­
cause of this, the engine oil level must be
checked regularly . It would be best to check
Checking and filling 225
each time you refue l your vehicle and before
long drives .
Adding engine oil~
Fig. 178 Eng ine co mpa rtment: cove r on th e engi ne oi l
filler neck
Before you check anyth ing in the engine com­
partment,
always read and heed all WARN­
INGS
r=> A in Working in the engine comport­
ment on page 219 .
• Unscrew the cap "l!:;r; to the engine oil filling
hole
r=> fig. 178, r=> page 221.
• Carefully top off with the appropr iate oil in
0 .5 liter doses .
• Check the oil level aga in after two minutes
,:;> page 224 or r=> page 225.
• To p off the oil again, if necessary.
• Sc rew the cap back on the filling hole .
8_ WARNING
-While topping off, the oi l must not come
in contact with hot engine parts -fire
hazard!
- The oi l filler cap must be properly se­
cured to prevent oil from being sprayed
on the hot engine and exhaust system
when the engine is running -fire hazard!
- If your skin has come in contact with the
engine oil, you must subsequently
cleanse it thoroughly.
(D Note
- Check the oil leve l. If the message
Please reduce oil level appears, contact
your authorized Audi dealer or other
qualified workshop to have excess oil ex-
tracted if necessary .
IJJJ,

226 Check ing and filling
- Audi d oes not recommend th e use of oil
a dd itiv es. T he y ma y damage the e ngine
and ad ve rs ely affect you r New Vehicle
Wa rrant y.
@ For the sake of the environment
- Under no circumstances can the oil come
in contact with the sewage network or
the soil.
- Observe and fo llow lega l regu lations
when disposing of empty oil containers.
Changing the engine oil
We recommend thot have your oil changed by
an authorized Audi dealer or a qualified serv­
ice station.
Before you check anything in the engine com­
partment,
a lw ays r ea d and heed all WARN­
I NG S
¢ & in Working in the engine compart­
ment on page 219.
The engine oil must be changed according to
the intervals specified in your Warranty
&
Maintenance book let. This is very important
because the lubricating properties of oil di­
minish gradually dur ing normal veh icle use .
Under some circ umstances the engine oi l
should be changed more frequently . Change
oil more often if you drive mostly short dis­
tances, operate the vehicle in dusty areas or under predominantly stop-and -go traffic con ­
d itions, or have your veh icle where tempera­
tures remain below freez ing fo r extended pe­
r iods.
Detergent addit ives in the o il w ill make fresh
oil look dark after the eng ine has been run­
n ing fo r a short time. This is norma l and is not
a reason to change the oil mo re often than
recommended.
Because of the problem of proper disposal ,
a long w ith the special tools and necessary ex­
pe rtise requi red, we strong ly recommend that
you have yo ur o il changed by an authorized
Audi deal er or a qualified service station.
If yo u choo se to ch ange your oil yours elf ,
please note the fo llowing important informa ­
t ion:
A WARNING "--
To reduce the risk of personal injury if you
must change the eng ine oil in your vehicle
yourself:
- Wear eye protect ion.
- To reduce the risk of burns from hot en-
g ine oil, let the engine cool down to the
touch.
- When removing the oil dra in p lug with
your fingers, stay as far away as possible.
Always keep your forearm parallel to the ground to help prevent hot oil from run­n ing down your arm.
- Dra in the oil into a container designed
for this purpose, one large enough to hold at least the tota l amount of o il in
your engine.
- Engine oil is poisonous . Keep it wel l out
of the reach of children.
- Continuous contact with used eng ine o il
is harmful to your sk in . Always protect
your skin by washing oil off tho roughly
wit h soap and wate r.
(D Note
Neve r mix oil additives with your engine
oil. These additives can damage your en­
gine and adversely affect your Audi Limit­
ed New Veh icle War ranty.
@ For the sake of the environment
- Before changi ng your oil, first make sure
you know where you can prope rly dispose
of the used oil.
- Always dispose of used eng ine oi l proper­
ly. Do not dump it on garden soil, wood­
ed areas, into open streams o r down
sewage drains.
- Recycle used engine oil by taking it to a
used eng ine oil collect ion fac ility in you r
area, or contact a service station.

Engine cooling system
Coolant
The engine coolant performs two functions: it
keeps the engine from overheating and it pro ­
te cts the engine from freezing in the winter .
The cooling system is sealed and generally re­
qu ires little attention .
The cooling system has been filled at the fac­
tory with a permanent coolant which does not need to be changed. The coolant consists of a
mixture of water and the manufacturer's gly ­
col-based coolant additive G13 ant ifreeze
w ith anticorrosion add itives (SO% fo r USA
models; 60% for Canad ian models). This mix­
ture bot h assu res the ne cessary frost protec­
tion and protects metal components in the
engine's coo ling system from corrosion and
scaling. It also raises the boili ng po int of t he
coolant.
D o not red uce the concentration o f the coo l­
ant in the summer by adding plain water .
The
proportion of coolant addit ive must be at
least 50% but not mo re than 60 %
to main­
tain antifree ze protection and cooling efficien­
cy. If the coolant frost protection is too low,
the coolant cou ld freeze and damage the veh i­
cle heating and eng ine cooling system .
For year-round driving, antifree ze is added at
the factory for temperatures down to:
- -3 1°F (-3S°C)USA
- -40 ° F ( - 4 0 °C) Canada.
A WARNING
Before yo u check anything in the engine
compartment , always read and heed a ll
WARNINGS ¢
& in Working in the engine
compartment on page 219.
(D Note
- Befo re winter sets i n, have the coolant
chec ked to see i f th e coo lant ad dit ive i n
you r vehicle is suffic ient to meet the cli­
mate cond itions . T hi s is especially impor­
ta nt if yo u live in a regi on whe re the w in-
-
Checkin g and fillin g 22 7
ter is ex treme ly co ld. If necessary, i n­
crease t he p ro po rtion of coo lant additive
to 60%.
- W hen a dding coolant additive to yo ur
cooling system , remembe r:
- We recommend us ing on ly coo la nt ad­
di tive G 12++ or G 13 for your v ehicle .
T his co olan t ad ditive is av ailab le at au­
t hor ized A udi dealers . O ther types of
an tifree ze can signi fican tly reduce cor ­
r osion pro te ction . The resulti ng cor ro ­
sion can ca use a loss of coolant a nd se­
rious engine damage.
- Do not add any ty pe of rad iator leak seal ­
ant to you r vehicle's engine coo lant .
Add ing radiator repair flu id may adverse ­
ly affect t he fu nction and performance of
your cooling system and cou ld result in
damage not covered by yo ur New Ve hicle
L imited Warranty .
Checking the engine coolant level
The engine coolant level can be checked with
a quick glance.
Fig. 179 En gine co mpart ment: cover on t he coo la nt
expansio n ta nk
Before you check a nyth ing in the eng ine com­
partment,
always read and heed all WARN­
INGS <=>&.
in Working in the engine compart ­
ment on page 219 .
Park your vehicle on a level surface.
.., Switch off t he ignition.
.., Read t he engine coolant level from the
coo lant expansion tank¢
fig. 179,
¢ page 221 . With a cold engine, the coolant
level shou ld be between the "min" and
"ma x" markings . When the engi ne is warm, ..,.

228 Checking and filling
the level may be slightly above the "max"
marking.
The location of the coolant expansion tank
can be seen in the engine compartment illus­
tration
¢ page 221.
To obtain an accurate reading, the engine
must be switched off.
The expansion tank in your vehicle is equipped
with an electric coolant level sensor.
When the coolant level is too low, the warning light in the Auto-Check System¢
page 15 will
illuminate until you add coolant and the level
has been restored to normal. Even though
there is an electric coolant level sensor , we
still recommend you check the coolant level
from time to time.
Coolant loss
Coolant loss may indicate a leak in the cooling
system. In the event of coolant loss, the cool­
ing system should be inspected immediately
by your authorized Audi dealer.
It is not
enough merely to add coolant.
In a
sealed system, losses can occur only if
the boiling point of the coolant is exceeded as
a result of overheating.
_& WARNING
The cooling system is under pressure and
can get very hot. Reduce the risk of scald­
ing from hot coolant by following these
steps. -
- Turn off the engine and allow it to cool
down.
- Protect your face, hands and arms from
escaping fluid and steam by covering the
cap with a large, thick rag.
- Turn the cap slowly and very carefully in
a counter-clockwise direction while ap­
plying light, downward pressure on the
top of the cap .
- To avoid being burned, do not spill anti­ freeze or coolant on the exhaust system
or hot engine parts. Under certain condi­
tions, the ethylene glycol in engine cool­
ant can catch fire .
(D Note
Do not add any type of radiator leak seal­
ant to your vehicle's engine coolant. Add­
ing radiator repair fluid may adversely af­
fect the function and performance of your
cooling system and could result in damage not covered by your New Vehicle Limited
Warranty .
Adding coolant
Be very careful when adding engine coolant.
Before you check anything in the engine com­
partment,
always read and heed all WARN­
INGS ¢&. in Working in the engine compart ­
ment on page 219.
.. Turn off the engine .
.. Let the engine cool down.
.. Place a thick rag over the coolant expansion
tank
¢ page 227, fig . 179 and carefully
twist the cap counter-clockwise ¢,&. .
.,. Add coolant.
.. Twist the cap on again
tightly.
Replacement engine coolant must conform to
exact specifications
¢ page 22 7, Coolant. We
recommend using only coolant additive G12+
+, G3 or in an emergency G12+ . Do
not use a
different additive. In an emergency use plain
water until you can get the correct additive
and can restore the correct ratio. This should
be done as soon as possible .
If you have lost a considerable amount of
coolant , then you should add cold antifreeze
and cold water only when the engine is cold.
Always use
new engine coolant when refilling.
Do not fill coolant above the
"MAX" mark . Ex­
cess coolant will be forced out through the
pressure relief valve in the cap when the en­
gine becomes hot.
_& WARNING
-= -- The cooling system is under pressure and
can get very hot. Reduce the risk of ..,_

266 Fuses and bulbs
Fuse panel @ (brown)
No. Equipment
1 Headlight control switch
2 Emergency start coil (key
identification)
3 Rear door
control module
(driver's side)
5 Horn
6 Interior lights
(headliner)
Steering column lever, mul-
8
tifunction steering wheel
controls, steering wheel
I heating
10 Power steering column ad-
justment
11 Driver door control module
12 Diagnost
ic connector, light/
rain sensor
14 Power steering column ad-
justment
15 Power
steering, AC compres-
sor
16 Brake booster
Fuse panel © (black)
No. Equipment
1 Front seat heating
2 Windshield wiper
3 Front exterior lighting
4 Sun roof
5 Driver power window
6 Driver seat (pneumatic)
7 Panoramic
sunroof
8 Dynamic steering
9 Front exterior lighting
10 Windshield/headlight
wash-
er system
11 Rear power window (driver's
side)
Panoramic sunroof
Amps
5
5
7,5 15
7,5
10/5
5
7,5 10
25
20 15
Amps
30
30
30 20
30 15
20
35
30
35
30
40
Front passenger side cockpit fuse
assignment
Fig. 206 Front passe nger side cockpit: fuse pane l with
plastic bracket
Fuse panel ® (black)
No. Equipment Amps
1 Anti-theft alarm system
5
2 T
ransmission control mod-
15
ule
3 Front climate control fan 40
4 Engine supply 35
6 Engine
control module
5
7 Front passenger door con-
7,5
trol module
8 Front passenger
power win-
30
dow
9 ESC control module 10
10 E5C control modu le 25
11 Right rear power window
30
12 Front
passenger seat (pneu -
15
matics)

-When removing heavy components like
these, anchor vehicle to hoist o r add cor ­
respond ing weig hts to mai nta in the cen ­
ter of g ravity. Otherwise, the vehicle
m ight tilt o r sli p off the hoist, causi ng
serious p ersona l injury .
Q) Note
-Be awa re of the fo llowing points befo re
li fting t he vehicle:
- The vehicle should never be lifted or
jacked up from underneath the engine
oil pan, the transmission housing , the
front or rear axle or the body side members. This could lead to serious
damage.
- To avoid damage to the underbody or
chassis frame, a rubber pad must be
i nserted between the floor jack and
the lift points .
- Before driv ing over a wo rkshop hoist,
check that the veh icle weight does not
exceed the permissibl e lifting capacity
of the hoist.
- Before driving over a workshop hoist,
ensure that there is sufficient clear­ ance between the hoist and low parts
of the vehicle.
Emergency situations 275
•
•

278 Data
Data
372 hp, a-cylinder engine, with all wheel drive
Engine data
Maximum output SAE net
Maximum torque SAE net
No. of cylinders
Displacement
Stroke
Bore
Compression ratio hp@rpm
l
b-ft@ rpm
CID (cm
3 )
in (mm)
i n (mm)
372 @6800
329@3500
8 cylinder
254.04 (4163)
3.66 (92,8)
3.33 (84,5)
12.5 : 1
Fuel Premium unleaded (91 AKI) Recommended for maxi­
mum engine performance. Further details¢
page 215,
Gasoline
Dimens ions (appro x.)
Length (with license plate bracket) in (mm)
Width (across mirrors) ____ in (mm)
He ight (unloaded) in (mm)
Turning circle diameter (curb to curb) ft . (m)
Capacities (approx.)
Fuel tank
- Total capacity gal (liters)
- Reserve (of total capacity) gal (liters)
Windshield and headlight washer quarts (liters)
fluid container
Engine oil
with filter change quarts (liters)
AS ASL
202.4 (5137) 207.52 (5267) _,, __
83.17 (2111) 83.17 (2111)
57 .52 (1460) 57.96 (1471)
4 0.35 (12.3) 41.67 (12,7)
23. 78 (90 .0)
3.17 (12)
5.29 (5)
8 .14 (7 .7)