2015 AUDI S8 torque

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@ Tips
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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),
•
•

198 Intelligent technology
vehicles with adaptive cruise control*, the brake assist system is more sensitive if the
d istance detected to the vehicle ahead is too
smal l.
Anti-slip regulati on (ASR )
ASR reduces engine power when the d rive
wheels begin to spin and adapts the force to
the road conditions. This makes it easier to
start, accelerate and drive up hills.
Electronic diffe rential lock (EDL )
The EDL brakes wheels that are spinn ing and
transfers the drive power to the other d rive
wheel or whee ls if the vehicle is equipped with
all whee l drive*. This function is available up
to about 75 mph (120 km/h).
I n extreme cases, ED L automatica lly switches
off to help keep the brake on the braked whee l
from overheating . EDL wi ll switch on again au­
tomatically when conditions have returned to normal.
Dynamic steer ing*
On vehicles with dynamic steering, ESC he lps
stabilize the steering in certain situations .
Selective wheel torque control
The se lective wheel torque cont ro l operates
when dr iving thro ugh cu rves. The front wheel
on the ins ide of the curve or both w heels on
the inside of the curve are braked selective ly
as needed. This minimizes sliding in the front
wheels and a llows for more precise driving
through curves. The applicab le system may
not activate when driving in wet or snowy con­
d itions .
Post- coll isio n br ake assis t
"Post-collision brake assist" can assist the
driver during a collision by reducing the dan­
ger of slipp ing and further collision and by au­
tomatic braking.
"Post-collision brake assist" functions d uring
collisions when the a irbag contro l modu le de­
tects a trigger level and the collision takes place at a certa in driving speed. The brak ing
of the vehicle happens automatically via the ESC as
long as the ESC, the brake system, and
the vehicle electrical system are not damaged
from the collision.
T he following ac tivit ies override the au toma t­
ic braking during a co llision:
- I f the driver p resses the acce le rator pedal.
There is no automa tic brak ing .
- When the force on the press brake peda l is
st ronger tha n the braking force initiated by
t he system. The veh icle is manua lly braked.
- When the ESC is damaged, the "Post-colli­
sion brake assist" is not available.
,&. WARNING
- ESC, ABS, ASR, ED L, dynamic steeri ng *
and the select ive wheel torque control
cannot overcome the laws of physics .
This is especially important on s lippery
or wet roads. If the systems beg in acting
to stabilize your veh icle, you should im­
mediately change your speed to match
the road and traffic conditions. Do not let the increased safety provided by
these systems tempt you to take r is ks.
D oing so will increase the risk of a loss of
veh icle contro l, col lision and ser ious per ­
sonal injuries.
- Always ad apt your speed to road, traffi c
and weather conditions . The risk of los ­
ing contro l of the vehicle increases when
driving too fast, espec ially through
curves and on slippery or wet roads, and
when dr iv ing too close to vehicles up
ahead. ESC, ABS, the brake ass ist sys­
tem, EDL, ASR, dynam ic steering* and
the selective wheel torque cont ro l can­
not prevent collisions.
- Always accelerate with special care on
even, smooth s urfaces such as those that
are wet or covered with i ce and snow.
The drive wheels can spin even w ith
these assistance systems tha t cannot al­
ways he lp to red uce the risk of loss of ve -
-
hicle control. IJJ,,

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 .,..

2 70 What do I do now ?
-Always store the vehicle tool kit, the jack
and the replaced t ire in the luggage com­
partment ¢
page 139.
@ Tips
Before changing the wheel, yo u m ust acti­
vate t he jac king mode, so t hat the auto­
mat ic cont rols fo r the Adaptive Air S us­
pens io n do not make it mo re diff ic u lt to
lift the vehicle with the jack
c.';> page 2 72.
Changing a wheel
When you change a wheel, follow these­
quence described below step-by-step and in
exactly that order .
1. Activate the vehicle jack mode
¢page 272.
2. Remove the decorative wheel cover* . For
more deta ils see also
¢ page 270, Deco­
rative wh eel covers
o r ¢ page 2 71 ,
Wheels with wheel bolt caps.
3 . Loosen the wheel bolts ¢ page 2 71.
4. Locate the proper mo unt ing po in t for the
j ack and align t he jack be low tha t poi nt
¢ page 272 or r::!>page 273.
5. Raise the car with the jack¢ page 272 or
¢page 273.
6. Remove the wheel with the flat tire and
then i nstall
the spare ¢page 274.
7. Tighten all wheel bolts ligh tly.
8 .
Lower th e ve hicle w it h the jack .
9 . Use the whee l bolt wren ch and
firmly
tig hte n al l whee l bolts ¢p age 271.
10. Rep lace the decorative wheel cover* .
11. D eactivate t he ve hicle jack mode in the
M MI :
!CARI function button > Car systems
control button > Se rvicing & checks > Air
susp.: jack mode
> Off .
The vehicle jac k mode sw itches off automati ­
cally at speeds above 10 km/h.
A WARNING
Always read and follow all WARNINGS and
informati on
¢ .&. in AB: Raising the vehicle
on page 272
and ¢page 275 .
After changing a wheel
A wheel change is not complete without the
doing the following .
.,. Always store the vehicle tool kit, the jack"
and the rep laced tire in the luggage com­
pa rtment
¢ page 139.
.,. Check the tire pressure on the spare whee l
immed iate ly afte r mounting i t.
.,. As soon as poss ible, h ave the
tightening
torques
on all whee l bolts che cked with a
torque wre nch. The correc t tig hten ing tor ­
que is 90 ft l b (120 Nm).
.,. Have the flat tire
replaced as s oon as possi­
ble.
@ Tips
- If you not ice that the w heel bo lts a re
co rroded and difficult to turn while
chang ing a tire, t hey shou ld be rep laced
before you check the tig htening to rque.
- Dr ive at reduced speed until you have the
t ightening torques checked.
- After changing a whee l, the t ire p ress ure
in all four tires must be chec ked/co rrect ­
ed and the tire p ress ure monito ring in di­
cator must b e sto red in th e MMI
¢ page 265.
' Decorative wheel covers
Applies to vehicles: w ith decorative whee l covers
The decorative wheel covers must be removed
first to access the wheel bolts.
Fig. 2 21 Cha ngin g a w hee l: Remov ing th e w heel cove r
Removing
.,. Insert the hook (prov ided w ith th e vehicle
t oo l ki t) in the hole in the whee l hub cover . ..,.

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-Pull the reversible blade from the screw­
driver before you use the hexagonal
socket in the handle to turn the wheel
bolts.
- When mounting tires with
unidirectional
tread design
make sure the tread pat­
tern is pointed the right way
<=>pag e 275.
- The wheel bolts should be clean and easy
to turn. Check for dirt and corrosion on
the mating surfaces of both the wheel
and the hub . Remove all dirt from these
surfaces before remounting the wheel.
Tires with unidirectional tread design
Tires with unidirectional tread design must be
mounted with their tread pattern pointed in the right direction.
Using a spare tire with a tread pattern
intended for use in a specific direction
When using a spare tire with a tread pattern
intended for use in a specific direction, please
note the following:
- The direction of rotation is marked by an ar­
row on the side of the tire.
- If the spare tire has to be installed in the in­
correct direction, use the spare tire only
temporarily since the tire will not be able to
achieve its optimum performance character­
istics with regard to aquaplaning, noise and
wear.
- We recommend that you pay particular at­
tention to this fact during wet weather and
that you adjust your speed to match road
conditions.
- Replace the flat tire with a new one and
have it installed on your vehicle as soon as
possible to restore the handling advantages
of a unidirectional tire.
Notes on wheel changing
Please read the information <=> page 256, New
tires and replacing tires and wheels
if you are
going to use a spare tire which is different
from the tires on your vehicle .
What do I do now? 275
After you change a tire:
-Check the tire pressure on the spare imme­
diately after installation.
- Have the wheel bolt tightening torque
checked with a torque wrench as soon as
possible by your authorized Audi dealer or
a qualified service station.
- With steel and alloy wheel rims, the wheel
bolts are correctly tightened at a torque of
90 ft lb (120 Nm).
- If you notice that the wheel bolts are cor­
roded and difficult to turn while changing
a tire, they should be replaced before you
check the tightening torque.
- Replace the flat tire with a new one and
have it installed on your vehicle as soon as
possible. Remount the wheel cover.
Until then, drive with extra care and at re­
duced speeds.
A WARNING
-
- If you are going to equip your vehicle
with tires or rims which differ from those
which were factory installed, then be sure to read the information<=>
page 256,
New tires and replacing tires and
wheels .
-Always make sure the damaged wheel or
even a flat tire and the jack and tool kit
are properly secured in the luggage com­
partment and are not loose in the pas­
senger compartment .
- In an accident or sudden maneuver they
could fly forward, injuring anyone in the
vehicle.
-Always store damaged wheel, jack and
tools securely in the luggage compart­
ment. Otherwise, in an accident or sud­
den maneuver they could fly forward,
causing injury to passengers in the vehi­
cle. •
•

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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