ECU AUDI S8 2010 Owner's Manual

_____________________________________________ C _h_i_ld _ S_ a_ f_ e_ t ... Y'--- __
& WARNING (continued)
• Make sure that the PASSENGER AIR BAG OFF light comes on
and stays on all the time whenever the ignition is switched on.
• If the PASSENGER AIR BAG OFF light does not come on and
stay on, immediately install the rear-facing child safety seat in a
rear seating position and have the airbag system inspected by
your Audi dealer. •
Activating the convertible locking retractor
Use the convertible locking retractor to secure a child
restraint.
Always heed the child safety seat manufacturer 's instruc­
tions when installing a child restraint in your vehicle. To acti­
vate the convertible locking retractor:
- Place the child restraint on a seat, preferably on the rear
seat .
- Slowly pull the belt
all the way out.
- Route it around or through the child restraint belt path
=>& .
- Push the child safety seat down with your full weight to
get the safety belt really tight.
- Insert the belt tongue into the buckle for that seating
position.
- Guide the safety belt back into the retractor until the belt
lies flat and snug on the child safety seat.
Controls and equip­
ment Safety first Vehicle operation
-
You should hear a "clicking" noise as the belt winds back
into the inertia reel. Test the convertible locking retractor
by pulling on the belt. You should no longer be able to pull
the belt out of the retractor. The convertible lock ing
retractor is now activated.
- Make sure that the red release button is facing away from
the child restraint so that it can be unbuckled quickly.
- Pull on the belt to make sure the safety belt is properly
tight and fastened so that the seat cannot move forward
or sideways more than one inch (2.5 cm).
& WARNING
Using the wrong child restraint or an improperly installed child
restraint can cause serious personal injury or death in a crash.
• Always make sure that the safety belt retractor is locked when
installing a child safety seat. An unlocked safety belt retractor
cannot hold the child safety seat in place during normal driving or
in a crash.
• Always buckle the child safety seat firmly in place even if a
child is not sitting in it. A loose child safety seat can fly around
during a sudden stop or in a crash.
• Always make sure the seat backrest to which the child restraint
is installed is in an upright position and securely latched into place
and cannot fold forward. Otherwise, the seat back with the child
safety seat attached to it could fly forward in the event of an acci­
dent or other emergency situation.
• Always read and heed all WARNINGS whenever using a child
restrained in a vehicle is being used
=> page 231. Special precau­
tions apply when installing a child safety seat on the front passenger seat =>
page 208, "Child restraints on the front seat -
some important things to know". •
Vehicle care Do-it-yourself service Technical data

& WARNING (co ntinued )
• Always follow the instructions provided by the manufa ctu rer
of the child restraint you intend to install in your vehicle.
• Never install a child re straint without a prope rly a ttached top
tether strap if the child r estraint manufacturer's in structions
require the top tether strap to be used.
• Improper use of child restraint LATCH lower anchorage points
can lead to injury in a collision . The LATCH lower anchorage points
are designed to withstand only those loads imposed by correctly
fitted child restraints .
• Never mount two child rest raint s ystems on one LATCH lower
an chorage point.
• Never secure or attach any luggage or other item to the LATCH
lower anchorages.
[ i ) Tips
• In Canada, the terms "top tether " with " lowe r universa l anchor­
ages" (or "lower universal anchorage bars") are used to describe the
system.
• In other countries, the term "ISO FIX" is used to describe the lower
anchorages . •
Safety first Vehicle OP-eration
Location Child Safety
Fi
g. 22 6 Sc hematic
o ve rvi ew : LATCH
anc hora ge poin t lo ca ­
ti ons
T he illustrat io n shows the seat ing locations in your vehicle whic h are
equipped wi th the lower anc horages system .•
Description
T h e lower anchorag e positions ar e marked for quick
loc ating.
Vehicle care
Fig. 22 7 Rear se at­
b ack s: loc ato r buttons
for low er anchorag es ..
Do-it-yourselt service iTechnical data

___ C_h _i_ld _ S_ a_ f_ e_ t_,, y'-----------------------------------------------
Fig. 228 Rear seats :
lower anchorage
bracket lo cation s
Attachment locator markers for lower anchorages
Circular locator buttons on the rear seatback indicate the lowe r
anchorage loca tions on th e r ear seating positions~ fig. 227.
Lower anchorages
T he lower ancho rage a ttachm ent po ints are located between t he rea r
sea tback and rear sea t cushi on
~ fig. 228.
Lower a nch o rage s se cu re the chi ld rest raint in the seat withou t us ing
the vehicle 's safety be lts. Anc ho rages prov ide a secure and easy-to­
u se at ta ch men t and mini miz e the pos sibil ity of im proper child
restra int i nstallation.
All child restra in ts ma nufact ured after Septem ber 1, 2 002, must
have low er anchorage attachmen ts for the
L ATCH system .
Remember that the lower anchorage points a re only intended for
ins tallati on and attachm ent of chil d restrain ts s peci ficall y ce rti fie d
for use with
L A TCH lowe r ancho rages. Child restra ints that are not
equi pped wi th the lowe r anchor age a tta ch me nt s ca n s till be ins tal led
in compliance w it h th e c hild restraint manu fac turer 's instructions on
using vehi cle s afety be lts.
& WARNING
Improper use of LATCH lower anchorages can cause seriou s
personal injury in an accident .
& WARNING (co ntinued )
• Always carefully follow the child restraints manufacturer's
instructions for proper installation of the child restraint and
proper use of the lower anchorages or safety belts in your vehicle .
• Never secure or atta ch any luggage or other items to the
LATCH
lower anchorages .
• Always read and heed the important information about child
restraints in this chapter and WARNINGS~
page 231, "Child
Safety ".•
Guidance fixtures far lower anchorages
Sp ecial guid ance fixt ures incr ea se the c on ve ni ence of the
lo we r an cho rages a nd a re avai la b le fro m you r a utho rized
Au di deal er.
Fig. 229 Outer rear
seats : in stalling the
guidance fixture s ..

___________________________________________ C_ h_il _d _ S_a _f _e _t =c,. y __ fl'II
Fig. 230 Close-up:
fitting the guidance
fixture over the lower
anchorage bracket
The lower anchorage attachment points are located on the
rear seats between the seatback and the seat cushion.
Special guidance fixtures increase the convenience of the
lower anchorages and help protect the seat material from
possible damage when installing child restraints.
Installing the guidance fixtures
-Push down on the seat cushion so that the lower anchor­
ages are visible.
- Hold the guidance fixture with the part number facing
downward and push it in the direction of the arrow onto
the anchorage ~ fig. 230.
- Make sure that each of the two guidance fixtures per seat
snaps into place.
Removing the guidance fixtures
- Remove the child restraint according the child restraint
manufacturer's instructions.
- Push down on the seat cushion so that the lower anchor­
ages are visible.
- Pull off the guidance fixtures from the lower anchorages.
Controls and equip­
ment Safety first Vehicle operation
-
Always remove the guidance fixtures and keep them in a
safe place when not in use.
You may find it easier to install child restraints equipped with hooks
attached to straps without the guidance fixtures in place. If this is the
case, remove the guidance fixtures by pulling them off the anchor­
ages. However, the guidance fixtures can help you to locate the
LATCH anchorages.
& WARNING
Improper use of tether anchorages or lower anchorages can cause
serious personal injury in a crash.
• Always carefully follow the child restraint manufacturer's
instructions for proper installation and use of child restraint
systems.
• Never use the
LATCH or tether anchorages to attach safety
belts or other kinds of occupant restraints.
• Child restraint tether attachments and lower attachments are
only designed to secure a child restraint that has been equipped to
use these anchorages.
• Tether anchorages and lower anchorages are designed to with­
stand only those loads imposed by correctly fitted child restraints.
Under no circumstances can they be used safely for adult or child
safety belts or harnesses.
• Never mount more than one child restraint to a single tether or
to a lower anchorage point. Attaching two child restraints to a single anchorage point can cause the anchorage to fail and cause
serious personal injury in a crash.
0 Note
• Remove the guidance fixtures before folding the rear seatback to
prevent damaging the seat cushion .
• If you leave the guidance fixtures installed for several days, they
could leave a mark on the upholstery on the seat cushion and backrest _.,
Vehicle care Do-it-yourself service Technical data

• .___C_ h_ il_d _ S_a _ f_ e _ t--= y '------------------------------------------------
in the area that the guidance fixtures were installed . The upholstery
would also be permanently stretched around the guidance fixtures.
This applies especially to leather seats .•
Installing a child restraint with LATCH
lower anchorages
Whenever you install a child restraint always follow the
child restraint manufacturer's instructions.
Mounting
Fig. 231 Lower
anchorages: proper
mounting
- Make sure the seat back of the rear seat bench is in the
upright position and securely latched in place.
- Attach both hook-on connectors with the spring catch
release on the child safety seat onto the LATCH lower
anchorage so that the connectors lock into place
~ fig. 231.
- Pull on the connector attachments to make sure they are
properly attached to the LATCH lower anchorage.
- Pull straps tight following the child restraint manufac­
turer's instructions.
Releasing
- Loosen the tension on the straps following the child
restraint manufacturer's instructions.
- Depress the spring catches to release the anchorage hooks
from the lower anchorages.
Remember: Use tether straps to help keep the child restraint firmly
in place.
& WARNING
Improper use of the LATCH system can increase the risk of serious
personal injury and death in an accident.
• These anchors were developed only for child safety seats using
the "LATCH" system.
• Never attach other child safety seats, belts or other objects to
these anchors.
• Always make sure that you hear a click when latching the seat
in place. If you do not hear a click the seat is not secure and could
fly forward and hit the interior of the vehicle, or be ejected from
the vehicle.
& WARNING
Improper installation of child restraints will increase the risk of
injury in an accident.
• Always follow the child restraint system manufacturer's
instructions for proper installation of the child restraint system
and proper use of tether straps as well as the lower anchorages or
safety belts in your vehicle.
• Always read and heed the important information and WARN­
INGS about child safety and the installation of child restraint
systems ~
page 231, "Child Safety". _,

0 Note
On vehicles with power ind iv id ual rear seats * some criteria mu st be
observed when attaching the child restraint using the
LATCH system:
• To attach the c hild restraint secu rely, the seat must be moved to
the farthest rear position, the seat heig ht set to the lowest pos it io n
and the head res tra int must be adj usted to the ve rt ica l posit io n
=> page 87.
• If a ch ild safe ty seat is attached to one of the rear seats, th is seat
must not be adjusted using the powe r contro ls under a ny circum ­
st ances. The easy en try fu nction for this se at must a lso be dea cti­
vated i n th e M MI
=> page 89. The c hild safety seat as well as the rear
se at can be dam aged by the adjus tment proce ss. •
Tether anchors and tether straps
Fig . 232 Tethe r
anc hors : recess flaps
behind the rear seat ­
backs
Th e te ther anchors for t he t hree rear se ating p osit io ns a re loca ted in
recesses in the rear window shelf=> fig. 232. Vehicles with power
ind iv id ual rear sea ts* are equippe d wit h two te ther anchors .
A tethe r is a straight o r V-s ha ped strap that att aches the top part of
a ch ild rest raint to special anchorage points in the vehicle .
Th e purpose of the te th er is to reduce the fo rw ar d move men t of the
child rest raint in a crash, in order to help reduce the risk of head injury
th at could be cause d by strik in g th e ve hicle in ter io r.
Safety first Vehicle OP-eration
Child Safety
Forward fac ing ch ild restraints manufactured after September 1,
1 999, are required by U.S. feder al regul ations to comp ly wi th new
child head moveme nt pe rformance requ ireme nts . These new per for­
mance re quirements ma ke a tether necessary on most new child
safety seats.
& WARNING
Improper installation of child restra ints will increase the risk of
injury and death in a crash.
• Always follow the instructions provided by the manufacturer
of the child restraint you intend to install in your Audi.
• Improper use of child restraint anchors (including tether
an chor s) can lead to injury in a collision . The anchors are designed
to withstand only those loads imposed by cor rectly fitted child
restraints.
• Never mount two child restraint systems on one LATCH lower
an chor point .
• Never attach two child restraint systems to one tether strap or
tether anchorage .
• Never attach a tether strap to a tie-down hook
in the luggage
c ompartment.
• Never use child restraint tether anchorages to secure safety
belts or other kinds of occupant restraints .
• Never se cure or atta ch any luggage or other items to the LATCH
lower anchorages or to the tether anchors.
• If a tether or other strap is used to attach a child restraint to
the front passenger seat, make sure that it is not so tight , that it
causes the weight-sensing mat to measure more weight than is
actually on the seat .
• The heavier weight registered can make the Advanced Airbag
System work as though an adult were on the seat and deploy the
Advanced Airbag when it must be suppressed causing serious or
even fatal injury to the child .
"°
Vehicle care Do-it-yourselt service iTechnical data

Trailer towing
"---------------------------------------------------
Trailer towing
Driving with a trailer
General information
Your Audi was designed primarily for passenger transpor ­
tation .
If you p lan to tow a t railer, p lease remember that the additional load
w ill affect durability, economy and performance.
Tr ailer towing not on ly p laces mo re s tress on the vehicle, it also calls
for more concentration from the driver.
For this reason, a lways follow the operating and dr iv ing inst ructions
prov ided and use common sense .
0 Note
If you are going to tow a trailer, you must activate the tra iler ope ra­
tion mode =>
page 179, "Towing a Trailer".
Technical requirements
Trailer hitch
Use a we igh t-car rying h itch co nform ing to the gross tra iler we ig ht.
The h itch must be suitab le for your vehicle and trailer and must be
mou nted securely o n th e vehi cle's ch assi s at a
techni cally sound loc a­
tion . Use only a trailer hitch with a removab le ball mount. Always
check wit h the t railer h itch manufactu rer to make sure that yo u are
using the correct h itch .
Do not use a bumper hitch.
The h itch mus t be installed in such a way t hat it does not in terfe re
w ith t he impact-absorb ing bumper system. No modifications shou ld be made to t
he veh icle exha ust and bra ke systems. From t ime to
time, check that a ll hitch mounting bo lts rema in securely fastened.
W hen you are no t tow in g a tra ile r, remove the t railer hit ch ball
mount. This prevents the hitc h from caus ing damage should your
vehicle be str uck from behind=>& .
Trailer brakes
If your trail er is e quipped w ith a b raking system, che ck to be s ure t hat
it conforms to all regulations.
T he tra ile r hydrau lic brake system m ust not be directly connected to
t he vehicle's hyd raulic b rake sys tem .
Safety chains
Always use safety chains between your veh icle and t he tra ile r.
Trailer lights
Trailer lights must meet all regulations. Be sure to check w ith your
Audi de aler fo r corr ec t wir ing , sw itches and re lays.
Mirrors
If you are unab le to see t he t raff ic be hind you using t he regular
outs ide mirrors, then you
must install extended mi rrors. It is impor­
t an t th at yo u
always ha ve clear vi sion to the re ar.
& WARNING
After removing the trailer hitch, do not store it in your vehicle. In
case of sudden braking , the hitch could fly forward and inju re you
or your passengers. •

Operating instructions
Maximum trailer weight
A trailer for your vehicle is limited to a typical class 1 or class 2 trailer.
Trailer load distribution
Be sure the load in the trailer is held securely in place to prevent it
from shifting forward, backward or sideways.
Never allow a passenger to ride in a trailer=>
& in "Driving instruc­
tions".
Engine cooling system
Towing a trailer makes the engine work harder. It is important that
the cooling system's performance is up to the additional load. Make
sure that the cooling system has enough fluid.
Tire pressure
When towing a trailer, inflate the tires of your vehicle to the cold tire
pressure listed under "Full load" on the label located either on the
driver's side B -pillar (visible when the door is open) or inside the fuel
filler flap. Inflate trailer tires to trailer and tire manufacturers' spec­
ifications .
Lights
The headlight settings should be checked with the trailer attached
before driving off. Check to make sure both vehicle and trailer lights
are working properly.
Safety chains
Be sure trailer safety chains are properly connected from the trailer
to the hitch on the vehicle. Leave enough slack in the chains to permit
turning corners . When you install safety chains, make sure they will
not drag on the road when you are driving.
The chains should cross under the trailer tongue to prevent it from
dropping in case of separation from the hitch .
Controls and equip­ ment Safety first Vehicle operation
Trailer
towingL_,1!:::!:·~-
0 Note
If you are going to tow a trailer, you must activate the trailer opera­
tion mode =>
page 179, "Towing a Trailer". •
Driving instructions
Driving with a trailer always requires extra care and
consideration .
To obtain the best possible handling of vehicle and trailer,
please note the following:
- Do not tow a loaded trailer when your car itself is not
loaded.
- Be especially careful when passing other vehicles.
- Observe speed limits.
- Do not drive at the maximum permissible speed.
- Always apply brakes early .
- Monitor the temperature gauge.
Weight distribution
Towing a loaded trailer with an empty car results in a highly unstable
distribution of weight. If this cannot be avoided, drive at very low
speeds only to avoid the risk of losing steering control.
A "balanced" rig is easier to operate and control. This means that the
tow vehicle should be loaded to the extent possible and permissible,
while keeping the trailer as light as possible under the circumstances.
Whenever possible, transfer some cargo to the luggage compart­
ment of the tow vehicle while observing tongue load requirements
and vehicle loading considerations.
Vehicle care Do-it-yourself service Technical data

___________________________________________ C..:...._ h:....:e :....:c:..:. k.::..: i..:.. n .:..:g:!:....:: a....:. n..:.. d~ f:....:. i.:..ll :.:.i:....:n :.:g !....- __
Closing the engine hood
- Pull the hood down until the pressure from the struts is
reduced.
- Let the hood
drop down and latch in place. Do not try to
push it shut;
it may fail to engage=:> &.
& WARNING
A hood that is not completely latched could fly up and block your
view while driving.
• When you close the engine hood, check it to make sure the
safety catch has properly engaged. The hood should be flush with
the surrounding vehicle body parts.
• If you notice while driving that the hood is not secured prop­
erly, stop at once and close it. •
Working in the engine compartment
Be especially careful whenever you work in the engine
compartment.
Whenever you must perform any work in the engine compartment,
for example checking and filling different fluids, there is a risk of injury, burns and accidents. To prevent personal injury always
observe the following WARNINGS. The engine compartment of any
vehicle is a hazardous area=>& .
& WARNING
To help avoid injury, before you check anything under the hood:
• Turn off the engine.
• Remove the ignition key.
• Apply the parking brake.
Safety first
& WARNING (continued)
• Move selector lever to "P" (Park).
• Always let the engine cool down. Hot components will burn
skin on contact.
• To reduce the risk of being burned, never open the hood if you
see or hear steam or coolant 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 compartment.
• Never spill fluids on hot engine components. 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 still
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.
• If work on the fuel system or the electrical system is necessary:
- Always disconnect the battery.
- Never smoke or work near heaters or open flames. Fluids in
the engine compartment could start a fire.
- Keep an approved fire extinguisher immediately available.
• To avoid electrical shock and personal injury while the engine 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 repair with the engine running:
- First, fully apply the parking brake, move selector lever to
"P" (Park). .,
Vehicle care Technical data

___________________________________________ C_ h_e _c _k_ i_n ~g_ a_n_ d_ f_ i_ll _i_n _g __ _
Before you check anything in the engine compartment,
always read and heed all WARNINGS==> & in "Working in
the engine compartment" on
page 289.
- Turn off the engine.
- Unscrew the oil filler cap from the cylinder head cover
==>
page 294, fig. 245 or==> page 294, fig. 246.
- Carefully top off with the appropriate oil in 0.5 liter doses.
- Check the oil level again after two minutes==>
page 293.
- Top off the oil again, if necessary.
- Screw the cap back on the filling hole and slide the oil
dipstick in as far as it will go.
& WARNING
• While topping off, the oil must not come in contact with hot
engine parts - fire hazard!
• The oil filler cap must be properly secured 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.
0 Note
• The oil leve l must not be above range@- danger of converter or
eng ine damage! Contact an authorized dealership to draw off oil, if
necessary.
• Audi does not recommend the use of oil additives. They may
damage the engine and adversely affect your New Vehicle
Warranty.
Safety first
<£' For the sake of the environment
• Under no circumstances can the oil come in contact with the
sewage network or the soil.
• Observe and follow legal regulations when disposing of empty oil
containers. •
Changing the engine oil
We recommend that have your oil changed by an autho­
rized Audi dealer or a qualified service station.
Before you check anything in the engine compartment, always read
and heed all WARNINGS=>
& in "Working in the engine compart ­
ment" on
page 289.
The engine oil must be changed according to the intervals specified in
your Warranty
& Maintenance booklet. This is very important because
the lubricating properties of oil diminish gradually during normal
vehicle use.
Under some circumstances the engine oil sho uld be changed more
frequently. Change oil more often if you drive mostly short distances,
operate the vehicle in dusty areas or under predominant ly stop-and­
go traffic conditions, or have your vehicle where temperatures remain
below freezing for extended periods.
Detergent additives in the oil will make fresh oil look dark after the
engine has been running for a short time . This is normal and is not a
reason to change the oil more often than recommended .
Because of the problem of proper disposal, along with the special
tools and necessary expertise required, we strongly recommend that
you have your oil changed by an authorized
Audi dealer or a qualified
serv ice station.
If you choose to change your oil yourself, please note the following
important information: .,_
Vehicle care Technical data