tow AUDI S8 2011 Service Manual

Determining correct load limit
Use the example below to cal­
culate the total weight of the
passengers and luggage or oth­
er things that you plan to trans­
port so that you can make sure
that your vehicle will not be overloaded.
Steps for Determining
Correct Load Limit
1. Locate the statement "THE
COMBINED WEIGHT OF OC­
CUPANTS AND CARGO
SHOULD NEVER EXCEED XXX KG OR XXX LBS" on your ve­
hicle's placard (tire inflation
pressure label)
¢ page 242,
fig. 184.
2. Determine the combined
weight of the driver and pas­
sengers that will be riding in
your vehicle.
3. Subtract the combined
weight of the driver and pas­ sengers from
"XXX" kilo­
grams or
"XXX" pounds
shown on the sticker
¢ page 242, fig. 184.
4. The resulting figure equals
the available amount of car­
go and luggage load capaci­
ty. For example, if the
"XXX"
amount equals 1400 lbs.
Tires and wheels
and there will be five 150
lbs. passengers in your vehi­
cle, the amount of available
cargo and luggage load ca­ pacity is 650 lbs. (1400-7 50
(5
X 150) = 650 lbs.)
5. Determine the combined
weight of luggage and cargo
being loaded on the vehicle.
That weight may not safely exceed the available cargo
and luggage load capacity
calcu lated in Step
4.
6. If your vehicle will be towing
a trailer, load from your trail­
er will be transferred to your
vehicle. Consult this manual
to determine how this re­
duces the available cargo
and luggage load capacity of
your vehicle.
,...Check the tire sidewall
(¢page 249, fig. 188) to de­
termine the designated load rating for a specific tire.
247
•
• '

What do I do now? Trunk escape handle
In case of an emergency, the rear lid can be
opened from the inside using the trunk es­
cape handle .
Fig. 191 Trunk escape hand le : View from inside the
closed trunk
To o pen r ear lid
.,. Pull the handle down towards the bumper
~fig. 191.
The trunk escape handle inside the rear lid is
made of fluorescent material to glow in the
dark.
A WARNING
The trunk escape handle is to be used only
in an emergency .
(D Tips
The emergency release lever should never
be used as a handle for closing the rear lid.
What do I d o now ? 259
Emergency warning
triangle
App lies to veh icles: w ith emergency wa rning tria ng le
The warning triangle is located on the inside
of the trunk lid.
Fig. 192 Trunk lid: Wa rning triangl e
.,. To remove the warning triangle, press the
retainer in the direction of the arrow
~ fig. 192 and fold the holder down .
The rear lid is only des igned to hold the warn­
ing triang le offered by the original accessories
program. If you would like to retrofit your ve­
hicle with a warning triangle, please contact
your authorized Audi dealer.

260 What do I do now ?
Vehicle tool kit
Vehicle tool kit and jack
The vehicle tool kit is located in the luggage
compartment under the cargo floor cover .
Fig. 193 Luggage compartmen t: ca rgo floo r cover
folded upwar d
Fig. 194 Trunk lid: Vehicle tool k it
• Lift the cargo floor by the plastic handle.
• Hook the handle into the luggage compart­
men t weather strip
c> fig . 193.
• Remove the spare wheel to reach the vehicle
tool kit .
• Remove the foam p iece .
The onboard tool kit includes:
- Hooks to remove the wheel covers* or whee l
hub covers
- Plastic hook to remove whee l bolt covers*
- Wheel bolt wrench
- Alignment p in for changing wheels
- Screwdriver with reversible blade
- Towing loop
- Jack
Before storing the jack, make sure it is wound
back down as fa r as it will go.
A WARNING
-Improper use of the vehicle jack can cause
serious personal injuries .
- Never use the screw driver hex head to
tighten wheel bolts, since the bolts can­
not attain the necessary tighten ing tor­
que if you use the hex head, potentially
causing an acc ident .
- The factory-supplied jack is intended on­
ly for your vehicle model. Under no c ir­
cumstances should it be used to lift
heavy veh icles or othe r loads; you risk in­
ju ring yo urself.
- Never start the engine when the vehicle
is raised, wh ich could cause an ac ciden t.
- Support the vehicle securely with appro ­
priate stands if work is to be performed
underneath the vehicle; otherwise, there
is a potentia l risk for injury.
- Never use the ja ck supplied with your Au­
di on another vehicle, particularly on a
heavier one. The jack is only suitable for
use on the vehicle it came with.
(D Tips
- Some of the onboard items listed above
are provided on certain models only or
are optional ext ras .
- Before yo u can raise your vehicle using
the jack, you must activate the jacking mode
c::> page 265 .

262 What do I do now ?
-Loose items in the passenger compar t­
ment can cause serious personal inj ury
during hard braking or in an acc ident.
- Never store the inflatable spa re tire or
jack and tools in the passenger com­
partment .
- Always s to re a ll jack ing equipmen t,
too ls, and the inflatab le spa re tire in
the l uggage compa rtment .
- Tighten the kn ur led retaining screw for
the inflatable spare tire sec urely.
Spare wheel
Applies to vehicles: with spare wheel
The spare wheel is stored in the wheel well
underneath the floor panel in the luggage
compartment.
Fi g. 1 96 Lu ggage co mp artm ent: spare whee l
Taking out the spa re wh eel
.. Lift the cargo floor by the plastic handle
¢ fig. 196 .
.. Hook the hand le into the luggage compart­
men t wea ther s trip.
.. Tu rn the l arge screw
¢ fig. 196 coun ter­
clockwise .
.. Take out the spare tire .
.,. Unhook the ca rgo floor before clos ing the
rear lid .
Securing the replaced tire
.. Place the wheel with tire in the sp are wheel
well and secure the wheel with the large
sc rew .
.,. Unhoo k the ca rgo f loor before clos ing the
r ear lid.
A WARNING
-Loose items in the passenger compart-
ment can cause serious persona l injury
d uring hard b rak ing o r in an accident .
- Never store the spa re wheel or jack and
too ls in the passenger compartment .
- Always store all jack ing equipment,
tools, and the spare wheel in the luggage
compa rtment .
- Tighten the knurled retaining screw for
the spare wheel securely .
@ Tips
Check the inflation pressure of the spare
tire periodically to keep the t ire ready for
use.
Changing a wheel
Before changing a wheel
Observe the following precautions for your
own and your passenger's safety when chang­
ing a wheel.
.,. After you experience a t ire failur e, pull the
car we ll away from mov ing traffic and try to
re ach
level ground before you stop ¢ .&,.
.. All passengers should lea ve th e car and
move to a safe location (for instance, b ehind
the guardrail) ¢
_A .
.. Engage the pa rking brake to prevent your
ve hicle from rolling uninten tionally ¢
_A .
.. Move selecto r le ver to pos ition P ¢ _A .
.,. If you are towing a tra iler, unhitch the trailer
from your ve hicle .
.,. Ta ke the
jack a nd the spare tire out of the
luggage compartmen t¢
page 260,
¢ page 261.
A WARNING
You o r your passengers could be i nju red
while changing a wheel if you do not fo l­
l ow these sa fety precaut ions:
- If you have a flat tire, move a safe dis­
tance off the road. Turn off the engine,
turn the eme rgency flashers on and use
-

Emergency situations
General
This chapter i s intended for trained emer­
gency crews and working personnel who have the necessary tools and equipment to
perform these operations.
Starting by pushing or
towing
CD Note
Ve hicles w ith an automatic tra nsmission
cannot be started by pus hing o rtowi ng.
Starting with jumper
cables
If necessary, the engine can be started by
connecting it to the battery of another vehi ­
cle.
If the engine shou ld fail to start because of a
discha rged o r wea k battery, the battery can be
connected to the battery o f
another vehicle,
using a
pair of jumper cables to start the en­
g ine.
Jumper c ables
Use only jumper cables of sufficiently la rge
c ross section to carry the starter c urrent safe­
l y . Refer to the man ufacturer's specifications.
Use only jumper cables with
insulated te rm i­
na l clamps wh ic h are d istinctly mar ked:
plus(+) cable in mos t cases co lore d red
minus (-) cable
in most cases colored black .
A WARNING
Batterie s contain e lec tricity, ac id, an d gas.
Any of these can cause ve ry ser io us or fatal
inju ry. Follow the ins tructions below f or
safe han dling of your veh icle's b attery .
- Alway s sh ield you r eye s and avoid lean­
i n g over the bat te ry w henever possib le.
- A dis ch arged battery c an free ze at tem­
pera tures ju st below 3 2 °F ( 0 °C ). Befo re
Emergency situations 273
connecting a jumpe r cab le, you must
thaw the fr ozen battery c omp lete ly, ot h­
erwise it could explode.
- Do not allow battery acid to contact eyes
or skin. Fl ush any contacted area with
wate r immediately .
- Improper use of a booster battery to start a vehicle may cause an explosion.
- Vehicle batter ies genera te exp losive gas­
es. Keep spar ks, flame and lighted c iga ­
rettes away from batte ries.
- Do not try to jump start any ve hicle w ith
a low ac id leve l in the battery.
- The vo ltage of the booste r batte ry m ust
a lso have a 12-Vol t rating. T he capacity
(Ah) of the booster battery sho uld not be
lowe r tha n that of the discharged bat­
tery . U se of batte rie s of d iffe ren t voltage
or substantially d iffe rent "Ah" rat ing
may c au se an exp losion and persona l in ­
Ju ry.
- N ever cha rge a fro zen battery. Gas tr ap­
pe d in the i ce m ay cause a n ex plosion.
- Never cha rge or use a batte ry tha t h as
been fr ozen . T he battery case may have
be weakened.
- Us e of batter ies of differe nt voltage or
sub stant ia lly diffe ren t ca pa city (Ah) rat­
i ng may c ause an exp losion an d injury .
Th e capac ity (Ah) of the booster bat tery
should not be lower than that of the dis ­
charged batte ry .
- Before you chec k any thing in the engine
compa rtment, always read and hee d all
WARNINGS
¢page 216, Engine com­
partment.
CD Note
- App lying a higher voltage booster ba t­
tery will cause expens ive damage to se n­
sit ive e lectronic components, such as
cont rol units, relays, rad io , etc.
- There must be no electrical contact be­
tween the vehicles as otherwise current
cou ld already start to f low as soon as the
posit ive(+) term inals a re connected. ..,. •
•

-When connecting jumper cables, make
sure that they cannot get ca ught in any
moving parts in the eng ine compart­
ment .
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS ¢
page 216, Engine com­
partment.
(D Note
Imprope r hook-up of jumper cables can r u­
in the generator.
- Always connect POSITIVE( +) to POSI ­
TIVE(+), and NEGA TIVE( -) to NEGATIVE
( - ) ground post of the battery manager
control u nit.
- Check that all sc rew plugs on the battery
ce lls are screwed in firmly. If not, tighten
pl ugs p rio r to conn ecting clamp on nega­
tive batt ery terminal.
- P lease note that the procedure for con­
nect ing a jump er cable as describe d
above applies spec ifica lly to the case of
you r vehi cle be ing j ump s tarte d. When
you are giv ing a jump star t to an othe r ve­
hicle, do
not connec t the negative( -) ca ­
b le to the negat ive (-) term inal on the
discharged battery@¢
fig. 210. In­
stead, securely connect the negative(-)
cable to e ithe r a solid metal component
that is firmly bolted t o th e engine block
or to the engine block itself.
If the bat­
te ry tha t is b eing cha rged does not vent
to the outside, es ca ping b attery gas
could ignite and ex plode!
Emergency towing
with commercial tow
truck
General hints
Your Audi requires special handling f or tow­
ing .
The fo llow ing informa tion is to be us ed by
commercia l tow tr uck operators who know
h ow to ope rate thei r equipmen t sa fe ly.
Emergency s itu ations 2 7 5
- Ne ver tow your Audi. Towing will caus e
damage to the engine and tran smission.
- Never wrap the safety chain s or winch ca­
ble s around the brake lines.
- To prevent unnece ssary damage , your Audi
must be transported with a flat bed truck.
- To load the vehicle on to the fl at bed , use
the towing loop found in the vehicle tools
and attach to the front o r rear anchora ge
¢page 275 and ¢page 276.
_& WARNING
A vehicle being towed is not safe for pas ­
sengers. Never allow anyo ne to ride in a
vehicle be ing towed, for any reason.
-
Front towing loop
Only install the front towing loop when it is
needed.
F ig. 21 1 Front bu mpe r: cove r
Fig. 212 Front bu mpe r: in stall ing t he tow ing loop
There are threads located behind the right
s ide of the front b umpe r where a towing loop
can be installed. The th reads are located be­
hind a cover.
.. Remove the tow ing loop from the vehicle
t oo l kit .

2 76 Em erg ency s it uat ions
• Press inward strongly on the left side of the
cap to remove it from the bumper
¢ fig. 211 .
• Insert the towing loop in the threaded open-
ing and tighten it until it stops¢
fig. 212.
Remove the towing loop when you are done
using it and place it back in the vehicle tool
kit. Install the cover in the bumper. Always
keep the towing loop in the vehicle.
A WARNING
If you do not screw the tow ing loop com­
pletely, it could come out of t he threaded
hole while the vehicle is being towed caus­
ing damage to the vehicle and possib le se­
r ious personal injury.
Rear towing loop
Only install the rear towing loop when it is
needed.
0 0
Fig . 213 Rear bumper: cover
0
Fig. 21 4 Rear bu mper: towing loop installed
There are threads located behind the right
side of the rear bumper where a towing loop
can be installed. The threads are located be­
hind a cover. •
Remove the towing loop from the vehicle
too l kit.
• Press inward strong ly on the left side of the
cap to remove it from the bumper
¢fig. 213.
• Insert the tow ing loop in the threaded open ­
ing and tighten it unt il it stops . The ind ica­
tor mark ing must be f lush w ith the bumper
¢ fig. 214.
Remove the towing loop when you are done
using it and place it back in the veh icle too l
ki t. Always keep the towing loop in the vehi­
cl e.
A WARNING
If yo u do not screw the towing loop com­
p lete ly, it could come out of the threaded
ho le w hile the vehicle is being towed ca us­
ing damage to the veh icle and possible se­
rious personal injury.
Loading the vehicle onto a flat bed truck
F ig . 21S Ve hicle on flat bed truck
Front hook up
"" Align the vehicle with the centerl ine of the
car carrier ramp.
• Attach the winch hook to the front tow line
eye previous ly installed .
Rear hook up
"" Align the vehicle with the centerline of the
car earner ramp.
• Attach the winch hook to the rea r tow line
eye prev ious ly ins talled .
-

@ Tips
Check carefully to make sure the hook-up
is secure be fore moving the ca r up the flat­
bed tr uck ramp .
Vehicle transport
Whenever you hove your vehicle transported,
be sure to note the following:
(D Note
Mount the tie-down chains/cab les over the
r u nning surface (ci rcumference) o f the
tires. Never secure the vehicle by the axle,
the suspensi on struts or the front or rear
towline eye . For tec hnical reaso ns, the
pressure i n the s uspension struts may
change du ring th e transport and this will
adve rsely affect vehicle handling.
Lifting vehicle
Lifting with workshop hoist and with
floor jack
The vehicle may only be li~ed at the lif ting
points illu stra ted.
Fi g. 2 16 Front l ift in g po int
Fi g. 217 Rea r lifti ng point
.. Read and heed WARNING r:::;, ,&. .
Emergency s itu ations 2 7 7
.. Ac tivate the vehicle jack mode in the M MI:
!CAR I fu nction button > Car systems contro l
button>
Servicing & checks > Air susp.:
jack mode > On .
.. Locate lifting points r:::;, fig . 216 r:::;, fig. 217 .
.. Adjust lifting arms of workshop ho ist o r
floor jack to matc h ve hicle lift ing po ints .
.. Insert a rubbe r pad b etween the floo r jac k/
works hop hoist and the li fting po in ts .
The vehicle jack mode must be activated so
that the a utomat ic adjustment of the Adap­
tive Ai r Suspe nsio n does not make it mo re dif­
fi cu lt to raise the vehicle wit h the floor j ack.
If you must l ift your vehicle with a floor jack
to work und erneath, be sure the vehicle is
safely supported on stand s intended for this
purpo se.
Front lifting point
The lifti ng point is located o n the floor pan re­
inforcement a bout at the same level as the
jack mount ing point
r:::;, fig . 216. Do not lift
the vehicle at th e verti cal sill reinforcem ent .
Rear lifting point
The lifti ng point is located o n the vert ica l rein­
forcement of the lower sill for the on -board
jack
r:::;, fig . 217 .
Lifting with vehicle jack
Refer tor:::;, page 265 .
A WARNING ~
-To reduce the risk of ser ious injury and
ve hicle damage.
- Alway s lift the vehicle only at th e spe­
cial worksho p hois t and floor jack lift
po ints illust rate d
r:::;, fig. 216 and
¢ fig. 217 .
- Fail u re t o lift the ve hicle at these
po ints co uld cause t he vehicle to til t or
fall from a lift if there is a change in ve­
hicle weight distribution and balance.
This mig ht happen, fo r example, when
heavy components such as the eng ine
block o r transmissi on are removed .
-

Consumer Information
Warranty coverages
Your 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 yo ur warran ­
ties can be found in your
Warranty & Mainte­
nance booklet .
Operating your vehicle
outside the U.S.A. or
Canada
Government regulations 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 .
I f 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 lower octane
rating . Improper fuel may cause engine
damage;
- service may be inadequate due to lack of
proper service facilities, tools or testing
equipment;
- replacement parts may not be readily availa­
ble.
- Navigation systems for vehicles built for the
U.S.A. and Canada will not necessari ly work
in Europe, and may not work in other coun­
tries outside North America .
Consumer Information 283
@ Note
Audi cannot be responsible for mechanical
damage that could result from inadequate
fuel, serv ice or parts availab ility.
Audi Service Repair
Manuals and Literature
Audi Offic ial Factory Service Manuals and Lit ­
erature are published as soon as possible after
model introduct ion. Service manuals and lit­
erat ure 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 m inimum.
However, a certain amount of regular mainte­
nance is still necessary to assure your vehicle's
safety, economy and reliability . For detailed
vehicle maintenance consult your Warranty
&
Maintenance booklet.
Under difficult operating conditions , for ex­
ample at extremely low outside temperatures,
in very dusty regions, when towing a tra iler
very frequently, etc., some serv ice work
shou ld be pe rformed 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 veh icle, you
help make sure that emission standards
are maintained, thus min imiz ing 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 technica l ..,_
•
•

290 Index .:..:..:..::....::.....:..._ ___________________________ _
Doors
M echanical child safety lock .. .... .. .. 38
Power child safety lock . . . . . . . . . . . . . . 38
Driver information system
CD/radio display . . . . . . . . . . . . . . . . . . . . 23
Door/r ear lid warning . . . . . . . . . . . . . . . 23
Efficiency program . . . . . . . . . . . . . . . . . . 25
Exterior temperature display ... .. .. .. 23
On-board computer . . . . . . . . . . . . . . . . . 24
Driver seating position ............... 128
drive select .................... ... . 106
adaptive air suspension/sport ........ 106
Adaptive dampers ........ .. .. .... . 106
Cornering light ......... .. .. .. .. .. . 106
Dynamic steering ......... .... .... . 106
Safety belt tensioner ....... .... ... . 106
Sport differential .......... ... .... . 106
Driv ing safely .............. ... .. .. . 127
Driving through water ............... 199
Driving tim e . . . . . . . . . . . . . . . . . . . . . . . . 24
Duplicate key . . . . . . . . . . . . . . . . . . . . . . . 29
Dynamic steering . . . . . . . . . . . . . . . 22, 106
E
Easy entry feature ............ .. .... .. 78
Efficiency program . . . . . . . . . . . . . . . . . . . 25
Fu el economy messages . . . . . . . . . . . . . 25
Other equipment . . . . . . . . . . . . . . . . . . . 25
Elect rical accessoires (sockets) . . . . . . . . . 63
Electrical accessories (sockets) . . . . . . . . . 69
Electromechanical parking brake
Emergency braking . . . . . . . . . . . . . . . . . 83
Operation ......................... 81
Parking .... ................ ..... .. 82
Releasing and closing ........... ... . 81
Starting assist ............ ... .... .. 82
Starting from rest ........ .. .. .... .. 82
Starting off with a trailer ..... .. .. .. . . 82
Warning/indicator lights ..... .. .... .. 15
Electronic differential lock (EDL) ... ... . 190
Warning/indicator lights ......... .. .. 19
E lectronic immobilizer . . . . . . . . . . . . 26, 30
Electronic power co ntrol (EPC)
warning/indicator light ..... .... ..... 20
Electronic speed limiter . . . . . . . . . . . . . . . 28 Electronic
stabilization program (ESP) . . 190
Warning/indicator lights ............. 18
Emergency actuation
Doors .. .. .. .. .. ............. .. .. . 3S
Parking lock ... .. ............. .... 116
Pow er sunroof ... .................. 41
R ea r lid ... .... .. ............. ..... 37
Emerg ency braking . ... .......... .. .. . 83
Emergency flasher .............. .. .. . 44
Warning/indicator lights ........ .. .. . 22
Emergency operation Panoramic sunroof ................ .. 42
Sun shade (roof) . ............... .. . 42
Emerg ency starting ... .......... .. .. 273
Emergency towing .................. 275
Emergency warning triangle ......... . 259
Energy management . ........... .. .. 195
Engine Compartment .. .. ... .......... .. .. 224
Coolant ......... .. .............. . 229
Data 282
starting ........................... 79
Start ing with jumper cables ......... 273
Stopping .. .. .. .. .. ........... .... . 80
E ngine compartment ............... . 224
Closing the hood ... ..... ........ .. 223
Opening the hood .......... ...... . 222
Safety instructions ............... .. 222
Working in the eng ine compartment .. 222
Engine coolant .. ................... 229
Adding coolant ... .. ..... ........ .. 230
Checking the engine coo lant level ..... 229
Expansion tank ................ .... 229
Malfunction symbol ............ .... . lS
Radiator fan ..... ................ . 231
Temp erature gauge ................ . 10
Engine oil ..... ... .. .............. . 224
Adding ... .. .. .. .. ........... .... 227
Additives .. .. .. .. ............. .. .. 227
Changing ..... .. ................. 228
Checking the engine oil leve l ......... 227
Indications and conditions requiring ex-
tra checking ..... ............. .... 227
Indicator light ... ... .......... .. .. . 17
Oil consumpt ion .. ............. .... 226
Oil grades ..... .................. . 224
Oil level symbol . . . . . . . . . . . . . . . . . . . . 20