2008 AUDI S8 radio

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Homelink ®
Universal remote control
Applies to vehicles: w ith Home link® unive rsa l remo te cont rol
General information
The HomeLink® feature can learn up to three radio
frequency codes for most current transmitters used for
operating garage doors, estate gates, home or outdoor
lighting systems, and other devices.
You must first program the Homelink® transmitter before you can
use the
system=> page 191, "Programming the Homelink® trans­
mitter".
In order to program the Homelink® transmitter for devices utilizing
rolling code , a second person on a ladder who can safely reach the
garage door opener motor is recommended. It is also necessary to
locate the
"learn" button on your garage door opener motor . Refer
to the operating instructions for the opener, as the location and
color of this button may
vary by manufacturer.
You can still use the original remote control for the device at any
time.
& WARNING
• Never use the Homelink"" transmitter with any garage door
opener that does have not the safety stop and reverse feature as
required by federal safety standards. This includes any garage
door opener model manufactured before April 1, 1982.
• A garage door opener which cannot detect an object, signaling
the door to stop and reverse does not meet current federal safety standards . Using a garage door opener without these features
increases risk of serious injury or death.
Controls and equip­ ment
& WARNING (continued)
• For safety reasons never release the parking brake or start the
engine while anyone is standing in front of the vehicle.
• A garage door or an estate gate may sometimes be set in
motion when the Homelink® remote control is being
programmed. If the device is repeatedly activated, this can over­
strain motor and damage its electrical components -an over­
heated motor is a fire hazard!
• To avoid possible injuries or property damage, please always
make absolutely certain that no persons or objects are located in
the range of motion of any equipment being operated. •
Applies to vehicles : wit h Home link ® uni vers al remote con trol
Programming the Homelink ® transmitter
The transmitter is programmed in two phases. For rolling
code transmitters, a third phase is also necessary.
f ( ~ ~
i
s: 0
,1, .., Cl)
ll
Fig . 213 Overhead
console: Homelink®
keypad
~

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11 . Locate the "lea rn" button on the garage door opener
motor (refer to the operating instructio ns fo r the opener,
as the location of this button may vary by man ufacturer).
12 . Press and release the learn button on the garage door
opener motor .
-Not e: once the button is pressed, there are 30 sec ond s in
which to init iate the next step .
13. On the Homelink® keypad inside the vehicle, firmly press and hold the Home link® button previously
programmed in phases 1 and 2 for two seconds and
release . Repeat this sequence
twi ce.
- Some vehicles may require the press/ho ld/re lease
sequence up to three times to complete the training
process.
Homelink® should now activate your rolling code
equipped device.
If the 5 minute time limit is exceeded, the emer gen cy flas her s will
flas h one t im e to indicate that the process has been terminated. In
this case, repeat steps 4 through 9.
If the emergency flashers do not flash
three t imes (after about 15 -
60 seconds), programming was not successful. In this case, repeat
steps 4 through 9.
Remote control units for garage door openers in Canada are set to
stop transmitting radio frequency signa ls after two seconds. This
time may not be suffic ient for the Homelink® system to learn the
radio frequency signal. Perform a ll other steps as described
above. •
Controls and equip­
ment
Applies to vehicles: with Homel ink® universa l remote contro l
Operating the Homelink ® transmitter
The Homelink® transmitter works in the same manner as
the original handheld remote contr ol that came with the
system.
Fig. 2 15 C lose- up:
H omelink® keypa d
- Press the appropriate programmed button (D, ® or @
to act ivate the des ired remote control function => & in
"General information" on
page 191. •
Applies to vehicles: with Homel ink® universa l remote control
Reprogramming a single button
A Homelink® button can be reprogrammed individually
without affecting the other button allocations.
P rogr amming th e ov erhead keypad
- Press the appropriate Homelink® button unt il the indi-
cator lig ht begins flash ing s lowly .
~

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&, W ARNING (continued )
• A tight tether or other strap on a rearward-facing child restraint
attached to the front passenger seat can put too much pres sure
on the weight-sensing mat in the seat and reg ister more weight
than is actually on the seat. The heavier weight registered can
make the 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 .
• If, in exceptional circumstances, you must install a forward ­
facing child restraint on the front passenger seat , always move the
seat into its rearmost position in the seat's fore and aft adjust­
ment range , as far away from the a irbag as possible. The backrest
must be adjusted to an upright position. Make sure that the
PASSENGER AIR BAG OFF light comes on and stays on all the time
whenever the ignition is switched on .
& WARNING
• If the PASSENGER AIR BAG OFF light does not go out when an
adult is sitting on the front passenger seat after tak ing the steps
described above, make sure the adult i s properly seated and
restrained at one of the rear seating positions .
• Have the airbag system inspected by your Audi dealer before
transporting anyone on the front passenger seat .
[ i] Tips
If the we ight -sens ing mat in the front passenger seat detects an
e mp ty s eat, th e front air bag o n the pass enge r sid e wil l be tur ned
off, and PASSENGER AIR BAG OFF will stay on.•
Repair, care and disposal of the airbags
Parts of the airbag system are insta lled at many different places o n
yo ur Au di. In stal li n g, r emo vin g, s ervic ing or rep airi ng a part i n an area of the vehicle can damage a part of an airbag system and
p re vent that sys tem from wor king pr operly in a c ollis ion.
Th ere are some important th ings you hav e to know to ma ke sure
that t he effectivenes s of the system will not be impai red and that
discar ded co mponents do not ca use injury o r po llut e the enviro n­
ment .
& WARNING
Improper care , servicing and repair procedures can increase the
risk of personal injury and death by preventing an airbag from
deploying when needed or deploying an airbag unexpectedly:
• Never cover , obstruct , or change the steering wheel horn pad
or airbag cover or the instrument panel or modify them in any way .
• Never atta ch any objects su ch as cup holders or telephone
mountings to the surfaces covering the airbag units .
• For cleaning the horn pad or instrument panel, use only a soft,
dry cloth or one moistened with plain water. Solvents or cleaners
could damage the airbag cover or change the stiffness or strength
of the material so that the airbag cannot deploy and protect prop­
erly .
• Never repair , adjust, or change any parts of the airbag system .
• All work on the steering wheel, instrument panel , front seats or
electrical system (including the installation of audio equipment ,
cellular telephones and CB radios , etc .I must be performed by a
qualified technician who has the training and special equipment
necessary .
• For any work on the airbag system, we strongly recommend
that you see your authorized Audi dealer or qualified workshop .
• Never modify the front bumper or parts of the vehicle body .
• Always make sure that the side airbag can inflate without inter-
ference :
~

Intellig ent tec hnol ogy -
------------ -=--=-= '-
vidual components . It regulates consumption, so that more elec­
t rical energy is not be ing used than is be ing genera ted and ensures
an optimal state of charge for the battery .
[ i ] Tip s
• But even energy management cannot negate the limits of
physics. Consider that the power and life of a battery are limited.
• If starting ability is threatened, you are informed by a warning
~ page 275, "Driver notification in the instrument cluster
display" .•
What you should know
The highest priority is given to maintaining starting capa ­
bility.
T he battery is severely taxed in short -distance driving, in city traffic
and during t he co ld time of year . Abundant e lectrica l energy is
required, but on ly a little is generated . It is also critical if the engine
is not running and e lectrical components are turned on. In this
instance energy is being consumed but none is being generated .
I t is in precisely these situations that you wi ll notice energy manage ­
ment active ly regulating the d istr ibut ion of energy.
Vehicl e stands for an extended period
If you do not drive your vehicle over a per iod of several days or
weeks, electrica l components are gradually cut back or switched off.
This reduces energy consu mpt ion and maintains starting capability
over a longer period .
Be aware t hat when you unlock you r ve hicle, some o f the conve ­
nience functions may not operate, such as the Advanced Key, the
remote contro l or t he power seat adjustment. T he convenience
functions will be available again when you turn on the ignition and start the engine .
Controls and equip­
ment Safety first Vehicle operation With th
e engin e turned off
If you listen to the radio, for examp le, with t he engine tu rned off or
use other MMI functions, the battery is being discharged.
I f starting capabi lity is jeopardized due to energy consumption, the
f o llow ing warn ing appears in t he MMI display:
Ple ase start engine , other wise sy stem will s witch off in 3
minute s.
The warning indicates that the system wi ll be turned off au tomat i­
ca lly after 3 minutes. If you wish to continue using the functions,
you have to start the engine .
With the engine running
Although e lectrica l energy is generated when the vehic le is being
driven, the battery can become discharged. This happens mostly
when little energy is being generated and a great deal co nsumed
and the battery's state of charge is not optimal.
To br ing the ene rgy balance bac k into equi librium , cons umers
which require especially large amounts of energy are temporar ily
cu t back or switched off . Heating systems in part icu lar require a
great deal of energy. If you notice, for example, that the heated
seats* o r the heated rear w indow are not heating, they have been
temporari ly cut back or switc hed off. These systems wil l be avai lable
again as soon as the energy balance has been restored.
You wil l also notice t hat engi ne idle speed has been increase d
s lightly . This is norma l and not a cause for concern . By increasing
engine idle speed the addi tiona l energy required is ge nerated a nd
the battery is charged. •
Driver notification in the instrument cluster
display
I f the battery's state of charge is not in the optima l range, this driver
no tificat io n ap pears in the instrument cl uster d isplay:
t:3 Low battery ch arge : battery will be charged while dri ving .,_
Vehicle care Do-it-yourself service Technical data

-Checking and filling PW~---=---=----------------
It is not necessary to remove the battery from the luggage compart ­
ment, and it is also not necessa ry t o disco nnec t the cab les.
F a st ch arging th e batt ery ( charging rate above 14 .8
V olts )
For technical reasons do not use a battery charger that uses voltage
greater tha n 14.8 Vo lts to charge your veh ic le's battery.
& WARNING
C harging a b attery can be dangerou s.
• Always follow the operating in structions provided by the
battery charger manufacturer when ch arging your b attery .
• Never charge a frozen battery . It may expl ode because of ga s
t rapped in the ice . Allow a frozen batter y to tha w out fir st .
• Do not reu se batteries which were fro zen. The battery hou sing
m ay have cracked and weakened when the battery froze.
• Charge the battery in a well ventilated are a. Keep aw ay from
open flame or electric al spar k. Do not smoke . Hydr ogen gas gener ­
ated by the battery i s explosive.
• To reduc e the danger of e xplosion , never conne ct or dis conn ect
charger cable s while the charger i s oper ating.
• Fa st charging a batter y is dangerous and should only be
a ttempted by a competent technician with the proper equipment .
• Battery ac id that may spill during charging should be washed
off with a solution of warm water and b aking soda to neutralize
the a cid .
0 Note
Never use a fast charger as a booster to start the engine. This wil l
ser iously damage sens it ive elect ronic compo nents, such as control
units, r elays, radio , etc ., as wel l as the battery charger. •
Battery replacement
The new batte ry mus t have t he s ame s pecificati ons and
dimensions as the original equipment battery.
I ntel ligent energy management in your vehicle is responsible for
distr ibut ing the e lectr ica l energy throughout your veh icle
~ page 274. The inte lligent energy management system will keep
t he engine ba ttery charged be tter than vehicles without t his sys tem.
T o make sure the add it ional electr ical energy is avai lab le once aga in
after you have changed t he battery, we recommend that you ins tall
batteries of the same type and manufacture only (the same as those
insta lled at the time your vehicle was delivered). Specifications are
listed on the battery housing . Your authorized Audi dea ler wi ll then
code the battery management contro l unit .
The new battery must have the same capacity, voltage (12 volts), amperage, construction and p lug sea ling.
When instal ling the battery, make sure the ign ition and all elect rica l
consumers are turned off .
0 Note
Make sure the ventilation hose on the side of the battery is
connected, otherwise fumes or battery acid can leak out.
'£> For the sake of the environment
Because of the problem of proper disposal of a battery, we recom ­
mend your authorized Audi dealer change the battery for you.
Batteries contain sulfur ic acid and lead and must always be
disposed of proper ly i n compliance with all environmental regula­
tions . Disposing of vehicle batteries improper ly is very dangerous to
t he environment .•

Tires and wheels -
----------------
•
& WARNING (continued)
crashes and serious personal injuries . Have worn or damaged tires
replaced immediately.
• 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
low speed.
Glossary of tire and loading terminology
Accessory weight
means the combined weight (in excess of those standard items
which may be replaced) of automatic transmission, power steering,
power brakes, power windows, power seats, radio, and heater, to
the extent that these items are available as factory-installed equip­
ment (whether installed or not).
Aspect ratio means the ratio of the height to the width of the tire in percent.
Numb ers of 55 or lower indicate a low sidewall for improved
steering response and better overall handling on dry pavement.
Bead
means the part of the tire that is made of steel wires, wrapped or
reinforced by ply cords and that is shaped to fit the rim.
Bead separation
means a breakdown of the bond between components in the bead.
Cord
means the strands forming the plies in the tire.
& WARNING (continued)
• Never mount used tires on your vehicle if you are not sure of
their
"previous history." Old used tires may have been damaged
even though the damage cannot be seen that can lead to sudden
tire failure and loss of vehicle control.
• If you notice unusual vibration or if the vehicle pulls to one side
when driving, always stop as soon as it is safe to do so and check
the wheels and tires for damage.
•
Cold tire inflation pressure
means the tire pressure recommended by the vehicle manufacturer
for a tire of a designated size that has not been driven for more than
a couple of miles (kilometers) at low speeds in the three hour period
before the tire pressure is measured or adjusted.
Curb weight
means the weight of a motor vehicle with standard equipment
including the maximum capacity of fuel, oil, and coolant, air condi­
tioning and additional weight of optional equipment.
Extra load tire
means a tire design to operate at higher loads and at higher infla ­
tion pressures than the corresponding standard tire. Extra load tires
may be identified as
"XL", "xi", "EXTRA LOAD", or "RF" on the side ­
wall.
Gross Axle Weight Rating
("GAWR")
means the load-carrying capacity of a single axle system, measured
at the tire -ground interfaces.
Gross Vehicle Weight Rating
( " GVWR")
means the maximum total loaded weight of the vehicle.
Vehicle care

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fl::. WARNING (continued)
• Before you check anything in the engine compartment, always
read and heed all
WARNINGS~ page 299, "Engine compartment".
0 Note
• Applying a higher voltage booster battery will cause expensive
damage to sensitive electronic components, such as control units,
relays, radio, etc .
• There must be no electrical contact between the vehicles as
otherwise current could already start to flow as soon as the positive
( + ) terminals are connected.
[ i) Tips
• The discharged battery must be properly connected to the
vehicle's electrical system. When jump starting or charging the battery , never connect the negative ground cable to the battery
negative post because the battery manager system must be able to
detect the battery's state of charge. Always connect the negative
ground cable to the negative ground post of the battery manager
control unit .•
Use of jumper cables
Make sure to connect the jumper cable clamps in exactly
the order described below!
Fig. 297 Jump starting
with the battery of
another vehicle: A -
discharged vehicle
battery, B -booster
battery
The procedure described below for connecting jumper
cables is intended to provide a jump start for your vehicle.
Vehicle with discharged battery:
-Turn off lights and accessories, move lever of automatic
transmission to
N (Neutral) or P (Park) and set parking
brake.
Connect POSITIVE (+) to POSITIVE (+) (red)
1. Connect one end to the positive terminal => fig. 297 G)
of your battery @.
2. Connect the other end to the positive terminal
@ of the
booster battery
@.
Connect NEGATIVE (-) to NEGATIVE (-) (black)
3. Connect one end to the negative terminal @ of the
booster battery
@.
Vehicle care Do-it-yourself service irechnical data