2015 AUDI S8 oil

- the temperature of the engine coolant rises
due to th e heat bui ld-up from the engine in
the engine compartment, or
- the engine compartment heats up because
the vehicle is parked in intense sunlight.
.&_ WARNING
- To reduce the r isk of personal injury nev­
er touch the radiator fan.
- The auxiliary electr ic fan is temperature
controlled and can switch on sudden ly
even when the engine is not runn ing.
- The auxiliary radiator fan switches on au­ tomat ically when the engine coolant
reaches a certain temperature and will
continue to run until the coolant temper ­
at ure drops.
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a
quick glance.
N N
-N
i
F ig . 2 05 Eng ine co mpartmen t: cove r on the b rake f lui d
r eservo ir
Before you check anything in th e engine com­
partment,
alwa ys read and he ed all WARN­
INGS c::> .&. in Working in the engine compart­
ment on page 2 28.
~ Read the brake fluid level from the brake
fl uid reservo ir ~
fig . 205, c::> page 230. The
brake f luid leve l must be betwee n the "M IN"
and "M AX" marki ngs.
The location of the brake fl uid reservo ir can be
see n in t he engi ne comp artment illus trati on
c::> page 230.
Checkin g and fillin g 239
The fluid level may d rop slightly afte r some
time due to the automatic adjustment of the
brake pads . T his is not cause for alarm .
If the brake flu id leve l falls considerably be­
low the "MIN" mark, the brake warning/indi­
cator light . (U.S. models) . (Canadian
models) w ill come on
~ page 14 . Do not con­
tin ue to operate the vehicle . The complete
brake sys tem should be thoroughly checked
by an authorized Audi dea ler or other quali ­
fied facility and the cause corrected.
If the
brake f lu id leve l is too low, the brake warning/
indica tor ligh t will illumi nate. Conta ct an au­
thorized Aud i de aler
immediately .
Changing brake fluid
Have the brake fluid changed by an experi­
en ced technician.
B rake fluid absorbs moisture from the air . If
the water content in the brake fluid is too
high, co rrosion in the brake system may resu lt
after a pe riod of time. The boiling point of the
brake f lu id will also dec rease conside rably and
decrease brak ing performance.
T herefo re , the bra ke fluid must be changed
every tw o year s. Always use new br ake f lu id
which con forms to Federal Mo tor Veh icle
Standard " FMVSS 116 DOT 4".
T he bra ke fluid reservo ir can be d iff icu lt to
reach, the refore, we recommend that you
have the bra ke fluid changed by your author­
ized
Audi dealer. Your dealer has the cor rect
tools, the right brake fluid and the know -how
to do this for you.
A WARNING
---- Brake flu id is poisonous. It must be stor­
ed only in the closed or iginal container
out of the reach of children!
- Brake failure can resu lt from old or inap­
prop riate brake f lu id. Observe these pre­
cautions:
- U se only brake fluid tha t meets SAE
specificat ion
J 1703 and conforms to
Federa l Motor Vehicle Standard 116.

256 Tires and wheels
Incorrect wheel alignment
Incorrect wheel alignment can cause exces­
sive tire wear, impairing the safety of the vehi­
cle. If tires show excessive wear, have the
wheel alignment checked by an authorized
Audi dealer or qualified workshop.
All Wheel Drive
Vehicles with quattro must always have tires
of the same size, construction and tread type.
For details see Qpage 202 .
.&_ WARNING
Sudden tire failure can lead to loss of con­
trol, a crash and serious personal injury!
- Never drive a vehicle when the tread on
any tire is worn down to the wear indica­
tors.
- Worn tires are a safety hazard, they do
not grip well on wet roads and increase
your risk of"hydroplaning" and loss of
control.
- Always keep chemicals that can cause
tire damage, such as grease, oil, gasoline
and brake fluid away from tires.
- Tires age even if they are not being used
and can fail suddenly, especially at high
speeds. Tires that are more than 6 years
old can only be used in an emergency
and then with special care and at lower speeds.
- Never mount used tires on your vehicle if
you are not sure of their "previous histo­
ry." Old used tires may have been dam­
aged even though the damage cannot be
seen that can lead to sudden tire failure
and loss of vehicle control.
New tires and replacing tires and wheels
New tires and wheels have to be broken in .
Fig. 212 Tir e specificat ion codes on the s idewall of a
t ire
No. Description
@ Nominal width of tire in millimeters
® Ratio of height to width (aspect ratio)
© Radial
® Rim diameter code
® Load index and speed rating
(J) U.S . DOT tire identification number
® Audi Original tire
® Sever snow conditions
@ Tire ply composition and materials
used
@ Maximum load rating
@ Treadwear, traction and temperature
grades
@ Maximum permissible inflation pres-
sure
The tires and rims are essential parts of the
vehicle's design . The tires and rims approved
by Audi are specially matched to the charac­
teristics of the vehicle and can make a major .,..

26 2 T ire s and wheel s
chains because the vehicle will be ex­
tremely low. If you do drive with snow
chains on while the vehicle is at this lev­
el, the snow chains might severe ly dam­
age the wheelhouse and other parts of
the veh icle.
(D} Tips
Where snow chains are mandatory oncer­
tain roads, this normally also applies to
veh icles with All Wheel Drive.
Wheel bolts
Wheel bolts must always be tightened to the
correct torque .
The design of whee l bolts is matched to the
factory installed r ims. If different rims
are fit­
ted, the correct wheel bolts with the right length and correctly shaped bolt heads must
be used. This ensures that wheels are fitted
secure ly and that the brake system functions
correctly .
In certain circumstances, you may not use
wheel bolts from a different vehicle -even if it
is the same mode l
¢page 292.
_& WARNING
Imprope rly tig htened o r maintained whee l
bolts can be come loose ca using loss of
contro l, a co llision and serious persona l in­
jury.
- Always keep the wheel bol ts and the
threads in the wheel hubs clean so the
wheel bolts can tu rn easily and be prop­
er ly tightened .
- Never grease or oil the wheel bo lts and
the threads in the wheel h ubs. They can
become loose w hile driving if greased or
oiled, even if tightened to the specif ied
torque.
- Only use wheel bolts that belong to the rim being installed.
- Never use different whee ls bolts on your
vehicle.
- Always maintain the correct tighten ing
torq ue for the wheel bo lts to reduce the risk of a whee
l loss. If the tightening tor­
que of the wheel bolts is too low, they
can loosen and come out when the vehi­
cle is mov ing. If the tighte ning torque is
too high, the wheel bolts a nd threads
can be damaged and the whee l can be­
come loose.
([) Note
The specified torque for the whee l bolts is
90 ft lb (120 Nm) with a tolerance of± 7,4
ft lb(± 10 Nm). Torque whee l bolts diago­
nally. Afte r changing a whee l, the torque
must be checked as soon as possible wi th a
torque wrench -pre ferably by an au thor­
ized Audi dealer or qualified workshop .
Low aspect ratio tires
Your Audi is factory-equipped with low aspect
ratio tires. These tires have been thoro ughly
tested and been se lected specifically for your
model for their superb performance, road fee l
and hand ling u nder a var iety of d riv ing condi ­
t ions . As k your author ized Audi dealer for
more details.
The low aspect ratio of these tires is ind icated
by a numeral of
55 or less in the tire's s ize
designation . The numeral rep resents the ratio
of the t ire's s idewa ll height in relation to its
t read width ex pressed in percentage. Conven­
tiona l tires have a he igh t/w idth rat io of 60 or
more.
The performanc e of low -a sp ec t-ratio tires i s
pa rticularly sensitive to improper inflation
pre ssure . It is therefore important that low
a spect ratio tires are inflated to the specified
pre ssure and th at the inflation pressure i s
regularly checked and maintained. Tire pre s­
s u res should be checked at least once a
month and always befo re a long trip
¢ page 251, Checking tire pressure .
What you can do to avoid tire and rim
damage
Low aspect ratio tires can be damaged more
easily by impact w ith potholes, curbs, gull ies .,..

.... N .... N
0 J:
'SI: .... \!) 1.1'1
.... 1.1'1 ,-0
Fuse pa nel @ (brown )
No . Equipment
1 Headlight contro l switch
2
Emergency start coil (key
i dentification)
3
Rear door control module
(driver's side)
4 Head-up Display
5 Horn
6 Inter ior lights (head liner)
Steering column lever, mul-
8
tifunction steering wheel
controls, steering wheel
heat ing
10
Electric steering co lumn
lock
11 D river door contro l modu le
12
D iagnostic connector, light/
rain sensor
14
Power steering col umn ad -
justment
15
Power steering, A/C com-
presse r
16 Brake booster
Fu se pa nel © (b la ck)
No . Equipment
1 Front seat heating
2 Windshield w iper
3 Front exterior lighting
4 Sun roof
5 Driver power window
6 Driver seat (pneumat ic)
7 Panoramic sunroof
8 Dynamic steering
9 Front exterior lighting
10 Windshield/headlight
wash-
er system
11
Rear power w indow (driver's
side)
12 Panoramic sunroof
Amps
5
5
7,5 5
15
7,5
10/5
5
7,5 10
25
20
15
Amps
30 30
30 20
30
7,5
20 35
30
35
30
40
Fu ses and bulb s 2 77
Front passenger side cockpit fuse
assignment
Fig . 233 Fro nt passe nger side cockpit: f use pane l with
plast ic brac ket
Fu se panel @ (bl ac k)
No. Equipment Amps
1 Anti-theft alarm system 5
2
Transmission control mod-
15
ule
3 Front climate control fan 40
4 Engine supply 35
6
Engine cont ro l modu le 5
7
Front passenger door con-
7,5 trol module
8
Front passenger power win-
30 dow
9 ESC contro l module
10
10
ESC contro l modu le 25
1 1
Right rear power window 30
1 2
Front passenger seat (pneu-
7,5 matics)
•
•

286 Emergency situations
- When removing heavy components like
these, ancho r vehicle to ho ist o r add cor­
responding weig hts to ma inta in the cen ­
ter of g ravity. Othe rwise, the vehicle
m ight tilt o r slip off t he hoist, causi ng
serious p erson al inju ry .
@ Note
- Be awa re of the following points befo re
li fting the 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 membe rs. This could lead to serious
damage.
- To avoid damage to the underbody or
chassis frame, a rubber pad must be
inserted between the floor jack and
the lift points.
- Before driving over a workshop hoist,
check that the veh icle weight does not
exceed the permissible 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.

288 Techni cal Dat a
Gross Ax le Weight R atin g
The Gross Axle Weight Rating is the maximum
l oad that can be applied at each axle of the
vehicle
c::> &. .
Vehicle capacity weight
The vehicle capac ity we ight (max. load) is list­
ed eithe r on the dr iver's side B-pillar or inside
the fuel filler flap.
A WARNING
- The actual Gross Axle Weight Rat ing at
the front and rear axles should not ex­
ceed the perm iss ible weights, and their
combination must not exceed the Gross
Vehicle Weight Rat ing.
Dimensions
I>
-
- Exceeding permissible weight ratings can
result in veh icle damage, acc idents and
personal injury.
(D Note
- The vehicle capacity weight figures apply
when the load is distributed evenly in the
vehicle (passengers and luggage). When
transport ing a heavy load in the luggage
compartment, carry the load as near to
the rear axle as poss ible so that the vehi­
cle's handling is not impaired.
- Do not exceed the maximum permissible
axle loads or the maximum gross veh icle
we ight. Always remember that the vehi­
cle's handling w il l be affected by the ex­
tra load. Therefo re, adj ust your speed ac­
cordingly.
- Always observe local regulat ions.
AS SS ASL
Length in (mm) 202.2 (5135) 202.6 (5147) 20
7.3 (5265)
Width in (mm)
76.7 (1949) 76 .7 (1949) 76 .7 (1949)
Width (across mir rors) in (mm) 83.1 (2111) 83.1 (2111) 83.1 (2111)
Height (unloaded)a) in (mm)
57.5 (1460) 57 .4 (1458) 57 .9 (1471)
a l The height of the vehicle depends on the tires an d th e suspension.
When driv ing up steep ramps, on rough roads,
over curbs, etc . it is important to remember
that some parts of your vehicle, such as spoil-
Capacities
Fuel tank: total capacity
Winds hield and headlight* washer fluid container ers or exhaust
system components, may be
close to the ground . Be careful not to damage
them .
gal (liters) approx. 21.7 (82.0)
quarts (liters) approx. 5.29 (5.0)

.... N .... N
0 J:
'SI: .... \!) 1.1'1
.... 1.1'1 ,....,
Gasoline engines
AB 3.0, 6 cylinder
Maximum output SAE net
Maximum torque SAE net
Displacement
Engine oil with filter change
Fuel
AB 4.0, 8 cylinder
Maximum output SAE net
Maximum torque SAE net
Displacement
Engine oil with filter change
Fuel
58 4.0, 8 cylinder
Maximum output SAE net
Maximum torque SAE net
Displacement
Engine oil with filter change
Fuel
AB 6.3, 12 cylinder
Maximum outpu t SA E net
Maximum torque SAE net
Displacement
Engine oil with filter change
Fuel
Diesel engine
AS 3.0 TOI, 6 cylinder
Maximum outpu t SA E net
Maximum torque SAE net
Displa cemen t
Engine oil with f ilter change
F uel
Techni cal Dat a 289
•
•
hp@rpm 333 @ 5300 -6500
l b-ft@ rpm 326 @ 2900 - 5300
CID (cm
3 ) 182 .7 (2995)
q uarts (liters) 7.3 (7 .0)
Prem ium unleaded (91 AKI) , ¢ page 220, Gasoline
hp@rpm 435@ 5100 - 6000
l b -ft@ rpm 444@ 1500 -5000
CID (cm
3 ) 243.6 (3993)
q uarts (li ters) 9.2(8 .7)
Premium unleaded (91 AKI) , ¢ page 220, Gasoline
hp@rpm 520 @ 5800 -6400
l b -ft@ rpm 481@ 1700 -5500
CID (cm 3
) 243.6 (3993)
q uarts (li ters) 9.2(8 .7)
Premium unleaded (91 AKI) , ¢ page 220, Gasoline
hp@rpm 500@6200
l b-ft@ rpm 461 @4750
CID (cm
3 ) 384.39 (6299)
q uarts (li ters) 11. 8 (1 1.2)
Premium unleaded (91 AKI) , ¢ page 220, Gasoline
hp@ rpm 2
40@ 3500 -4 000
l b-ft@ rpm 429@ 1750 - 2250
CID ( cm
3
) 18 1.0 (29 67)
quarts ( liters) 6.8 (6.4)
ULSD No. 2 , ¢ page 221, Diesel fuel

290 Consumer Information
Consumer Information
Warranty coverages
You r Audi is covered by the following war­
ranties:
- New Vehicle Limited Warranty
- Limited Warranty Against Corrosion Perfo-
ration
- Emissions Control System Warranty
- Emissions Performance Warranty
- California Emissions Control Warranty (USA
vehicles only)
- California Emissions Performance Warranty
(USA vehicles only)
Detailed information regarding your warran­
ties can be found in your
Warranty & Mainte­
nance booklet .
Operating your vehicle
outside the U.S.A. or
Canada
Government regu lations in the United States
and Canada require that automobiles meet
specific emission regulations and safety
standards. Therefore, veh icles built for the
U.S.A . and Canada differ from vehicles sold in
other countries .
If you p lan to take your vehicle outside the
continental limits of the United States or Can­
ada, there is the possibility that:
- unleaded fuels for vehicles with cata lytic
converter may not be available;
- fuel may have a considerably lowe r octane
rating. Improper fuel may cause engine
damage ;
- service may be inadequate due to lack of
proper service facilities, tools or testing
equipment ;
- replacement pa rts may not be readily availa­
ble.
- Navigation systems for vehicles built for the
U.S.A. and Canada will not necessar ily work
in Europe, and may not work in other coun­
tries outside North America .
(D Note
Audi cannot be responsible for mechanical
damage that could result from inadequate
fuel, service or parts availability.
Audi Service Repair Manuals and Literature
Audi Official Factory Service Manuals and Lit­
erature are published as soon as possible after
model introduction. Service manuals and lit­
erature are available to order from the Audi
T echnical Literature Ordering Center at:
www.audi.techliterature.com
Maintenance
General
Your vehicle has been designed to help keep
maintenance requirements to a minimum.
However, a certain amount of regular mainte­
nance is still necessary to assure your vehicle's
s afety, economy and rel iability. For detailed
vehicle maintenance consult your Warranty &
Maintenance booklet.
Under difficult operating conditions, for ex­
ample at extremely low outside temperatures,
i n very dusty regions , when towing a trailer
very frequently, etc., some service work
should be performed between the intervals
specified. This applies particularly to:
- oil changes, and
- cleaning or replacing the air filter .
(® For the sake of the environment
By regularly maintaining your vehicle, you
help make sure that emission standards
are maintained, thus minimizing adverse
effects on the environment.
Important considerations for you and
your vehicle
The increasing use of electronics, sophisticat­
ed fuel injection and emission contro l sys-
tems, and the genera lly increasing technical
liJJ,