radio AUDI S8 2009 User Guide

vidual components. It regulates consumption, so that more elec­
trical energy is not being used than is being genera ted and ensures
an optimal state of charge for the battery.
[ i ] Tips
• 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 277, "Driver notification in the instrument cluster
display". •
What you should know
The highest priority is given to maintaining starting capa ­
bility.
The battery is severely taxed in short -distance driving, in city traffic
and during the cold time of year . Abundant electrical energy is
required, but only 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 .
It is in precisely these situations that you wi ll notice energy manage ­
ment actively regulating the distribution of energy.
Vehicle stands for an extended period
If you do not drive your vehicle over a period of several days or
weeks, electrical components are gradually cut back or switched off.
This reduces energy consumption and maintains starting capability
over a longer period.
Be aware that when you unlock your vehicle, some of the conve ­
nience functions may not operate, such as the Convenience key, the
remote control or the power seat adjustment. The convenience
functions will be available again when you turn on the ignition and start the engine.
Controls and equip­ ment Safety first Vehicle operation
Intelligent technology
With the
engine turned off
If you listen to the radio, for examp le, with the engine turned off or
use other MMI functions, the battery is being discharged.
If starting capability is jeopardized due to energy consumption, the
following warning appears in the MMI display:
Please start engine, otherwise system will switch off in 3
minutes .
The warning indicates that the system wi ll be turned off automati­
cal ly 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 vehicle is being
driven, the battery can become discharged. This happens mostly
when little energy is being generated and a great deal consumed
and the battery's state of charge is not optimal.
To bring the energy balance back into equi librium , consumers
which require especia lly large amounts of energy are temporarily
cut back or switched off. Heating systems in particular require a
great deal of energy. If you notice, for example, that the heated
seats* or the heated rear window are not heating, they have been
temporarily cut back or switched off. These systems will be available
again as soon as the energy balance has been restored.
You wil l also notice that engine idle speed has been increased
s lightly . This is norma l and not a cause for concern . By increasing
engine idle speed the additiona l energy required is generated and
the battery is charged. •
Driver notification in the instrument cluster
display
If the battery's state of charge is not in the optimal range, this driver
notification appears in the instrument cluster display:
Low battery charge: battery will be charged while driving ~
Vehicle care Do-it-yourself service Technical data

--~_C_ h_e _c _ k_ i_n _,g::;..._ a_n_ d_ f_ i_ll _in -'g=---------------------------------------------
It is not necessary to remove the battery from the lugga ge compart ­
men t, and it is als o not nec essary to disco nnect the cab les.
Fast charging the battery (charging rate above 14 .8
Volts )
For technical reasons do not use a battery charger that uses vo ltage
grea te r th an 14 .8 Vo lts to c harg e you r vehi cle 's bat te ry.
& WARNING
Charging a battery can be dangerou s.
• Always follow the operating instructions provided by the
battery charger manufacturer when charging your battery .
• Never charge a frozen battery . It may explode because of gas
trapped in the ice . Allow a frozen battery to thaw out first .
• Do not reuse batteries which were frozen. The battery housing
may have cracked and weakened when the battery froze.
• Charge the battery in a well ventilated area. Keep away from
open flame or electrical spark. Do not smoke . Hydrogen gas gener ­
ated by the battery is explosive.
• To reduce the dange r of explosion, never connect or disconnect
charger cables while the charger is operating.
• Fast charging a battery is dangerous and should only be
attempted by a competent technician with the proper equipment .
• Battery acid that may spill during charging should be washed
off with a solution of warm water and baking soda to neutralize
the acid .
0 Note
Never use a fast charger as a booste r to start the engine . T his wil l
s eri ously damage se nsit iv e elect ron ic c ompo nents, suc h as control
units, re lays, radio, etc ., as wel l as the battery charger .•
Battery replacement
Th e new ba tte ry must have th e s am e sp ecification s and
dim ensions as the origin al equ ipment b attery.
Intel ligent energy management in your vehicle is responsib le fo r
distr ib utin g th e e lectri ca l ene rgy th roug hout y ou r veh icle
~ page 2 76. T he inte lligent energy management system will keep
th e eng in e b attery c harged be tte r than veh icles w it h o ut th is sys tem.
T o make sure the addit ional electrical energy is avai lab le once aga in
aft er you have chang ed th e batt ery, w e recom mend that y ou install
batteries of the same type and manufacture only (the same as those
insta lled a t th e time you r vehicle was delive re d). Specification s are
li sted on th e battery housing . Your authorized Audi dea ler wi ll then
code the bat tery manage ment co nt ro l unit .
T he new batt ery must have the sa me capac ity, v oltage (12 volts),
amperage, construct ion and p lug sea ling.
Whe n inst allin g the bat tery, make sure t he ig nition a nd all elec trica l
consumers are turned off.
0 Note
Mak e sure t he ven tilation hose on t he side of the battery is
connec te d , otherwise fu mes or batt ery acid ca n lea k out.
ffi For the sake of the environment
Because of the problem of proper disposal of a battery, we recom ­
m end your authorized Aud i dealer chang e the batt ery for you.
Batteries contain su lfuric acid and lead and must alwa ys be
disposed of proper ly i n co mpl iance with all en vironm ental r eg ula­
tions. D isposing of vehicle batteries improper ly is very dangerous to
t h e en viron men t.•

________________________________________________ E_ m ___ e_r.::g ~e ___ n_c ~y:.- s;_ i_t _u :...:a:..:. t.:.: i...:o :...:n...:..:. s _ __,J_
& WARNING !continued)
• Before you check anything in the engine compartment, always
read and heed all WARNINGS~ page 301, "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. 299 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 . 299 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

_______________________________________________ C _o_ n _ s_u _ m_ e_ r_l_n _f_o _ r_ m_ a_ t _i _o _ n __ lllll
& WA RNIN G (continu ed )
ment zone s. Do ing so will in creas e the risk of injur y if airb ags are
trig ger ed in an accident!
• Before you che ck anyth ing in the engine comp artme nt, a lwa ys
re ad and heed all WARNIN GS=>
page 301 .
0 Note
• If items other than ge nuine Audi spare parts, add -on equ ipment
and accessory items are used or if repair work is not performed
according to specified methods, this can resu lt in severe damage to
your vehicle's engine and body (such as corrosion) and adverse ly
affect your vehicle's war ranty.
• T he innovative a luminium concept of your Audi A8 means that all
servicing, repairs or other work on the vehic le body mus t be carried
out exc lusively by an Audi workshop.
• I f emergency repairs must be performed e lsewhere, have the
vehicle examined by an authorized Audi dealer as soon as possible.
• The manufacturer cannot be held liable for damage which occurs
due to failure to comply with these stipu lations. •
Technical Modifications
Our guidelines must be complied with when technical
modifications are made.
A lways c onsult an authorized Audi dealer before starting work on
any modifications.
T his will he lp ensure that vehicle function, performance and safety
are no t impa ired =>& .
Attempting to work on electronic components and the software used with them can cause malfunctio ns. Because o f the way elec ­
tronic components are interconnected with each other, such
malfunctions can also have an adverse affect on other systems that
Controls and equip­ ment Safety first Vehicle operation
are not directly involved.
This means that you risk both a substantial
reduction in the operat ional safety of your vehicle and an increased
wear of vehicle parts => & .
Authorized Audi dealers wi ll perform this work in a professional and
competent manner or, in special cases, refer you to a pro fess ional
company that specializes in such modifications.
& WARNING
Improper repair s and modifications c an change the way vehicle
s y stems work and cau se seriou s per sonal injury .
0 Note
If emergency repairs must be perfor med e lsewhere, have the
vehic le examined by an authorized Audi dea ler as soon as
possible. •
Declaration of Compliance ,
Telecommunication or Electronic Systems
Ra dio Fre quency Devices and R adio comm unic ation
E quipment User Manual N otic e.
The manufacturer is not responsible for any radio or TV interference
caused by unauthorized modificat io n s to this equi pment .
Device s
The followi ng devices each comp ly w ith FCC Part 15 .19, FCC 15.21
and RSS-Gen Issue 1:
• Adaptive C ruise Contro l
• Convenience key
• Aud i side assist
• Cell phone package
• Electronic immobilizer
Vehicle care Do-it-yourself service Tec hn ica l da ta