battery AUDI S8 2014 Owner's Manual

206 Intelligent technology
off. These systems will be avai lable again as
soon as the energy ba lance has been restored.
You will also notice that engine idle speed has
been increased s lightly. This is normal and not
a cause for concern. By increasing engine idle
speed the additiona l energy required is gener­
ated and the battery is charged .

A WARNING ,~
- Do not park your vehicle over flammable
materials such as grass or leaves because
the high temperature of the diesel par­
t icu late filter cou ld start a fire .
- Do not apply an underbody protectant in the exhaust system area or a fire could start .
Shutting down vehicle
If you would like your veh icle to remain inop ­
erat ive for a longer period of time, contact an
Aud i or other specia lized dealer. They can ad­
vise you on necessary precautions e.g . corro­
sion prevention, ma intenance and storage.
Pay attention to additiona l information con­
cerning the battery. Refer to~
page 243.
Avoid damaging the
vehicle
When you a re driving on poor roads, or over
curbs, steep ramps, etc., make certain that low-lying parts such as spoilers and exhaust
system parts do not bottom out and get dam­
aged.
This is especially true for vehicles with low­
slung chassis (sports chassis)* and fully load ­
ed vehicles.
Driving through water
on roads
Note the following to avoid vehicle damage
when driving through water, for example on
flooded roads :
- The water must not be any higher than the
bottom of the veh icle body.
- Do not drive faster than wa lking speed.
A WARNING
After driving through water, mud, slush,
etc., the brakes may be slow to take effect
because of wet brake rotors and pads. Dry
-
Drivin g and environment 209
the brakes first by braking carefully to re­
store the full braking effect.
(D Note
- Vehicle components such as the engine,
transmission, suspension or electrical
system can be severely damaged by driv­
ing through water.
- Always switch off the Start-Stop-System
when driving through water~
page 88.
(D Tips
-Check the depth of the water before driv­
ing through it .
- Do not stop the vehicle, drive in reverse
or switch the engine off when driving
through water.
- Keep in mind that oncoming vehicles may create waves that raise the water
level and make it too deep for your vehi­
cle to drive through safely .
- Avoid driving through salt water because
it can cause corrosion.
Operate your vehicle
economically and minimize pollution
General
Your personal style of driving will determine
t he economy of your vehicle , as well as ex­
haus t and noise levels.
Fuel economy, environmental impact, and
wear on your engine, brakes and tires largely
depend on three factors:
- your personal driving style
- operating conditions
- technical limitations
If you ant icipate what you need to do next and
drive econom ically, you can easily cut your
fuel consumpt ion by 10-15 percent . Th is sec­
tion w ill give you some tips on how you can
help the env ironment and your pocketbook. •
•

232 Check ing and filling
- Always disconnect the battery.
- Never smoke or work near heaters or open flames . Fluids in the engine com­
partment could start a fire.
- Keep an approved fire extinguisher im­
mediately available.
- To avoid electrical shock and persona l in ­
jury 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 repa ir
with the engine running:
- Fi rst, fully apply the parking bra ke,
move se lec to r lever to "P" (Park) .
- Always use extreme caution to preven t
clot hing, jewe lry, or long h air from ge t­
ting caught in the radiator fan, V -belts
or other moving parts, or from contact­ ing hot parts . Tie back hair before
start ing, and do not wear cloth ing that
will hang or droop into the eng ine .
- Min imize exposure to emission and
chemica l hazards¢ ,&..
A WARNING
California Propos ition 65 Warning:
- Engine exhaust, some of its constituents,
and certa in veh icle components conta in
or emit chemicals known to the State of
Califor nia to cause cancer and b irth de­
fec ts a nd reproduct ive ha rm. In addition ,
certain fluids conta ined in vehicles and
certa in prod ucts of co mponent wear co n­
ta in o r emi t chemicals known to the
State o f Ca lifornia to cause can cer and
birth defects or ot her reproductive harm . -
Battery posts, terminals and re lated ac­
cessories conta in lead and lead com­
pounds, chemicals known to the State of
California to cause cance r and reproduc­
tive harms. Wash hands after handling .
(D Note
When adding flu ids, always make sure that
they are poured into the proper conta iner
or f iller opening, otherwise serious dam­
age to vehicle systems w ill occur.
® For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regularly. If
you see spots from oil or other ve hicle flu­
i ds, have yo ur vehicle inspected by a n au­
thori zed Audi dea le r.
Closing the engine hood
.,. Pull the hood down un til the pressure from
t he struts is reduced.
.,. Let the hood
drop down and latch in p lace .
Do not try to push it shut; it may fail to en­
gage ¢&_ .
A WARNING
-
A hood that is not completely latched
could fly up and b lock your view while dr iv ­
ing .
-When you close the engine hood, check it
to make sure the safety catch has p roper ­
ly engaged. The hood sho uld be flush
with the surrou nding vehicle body pa rts.
- If you notice while driv ing t hat the hood
is not s ecured prope rly, stop at onc e and
close it.

long. This can seriously affect the effi­
ciency of the brakes as well as yo ur
safety. This could result in an acc ident.
0 Note
Brake f luid will damage the paint of your
vehicle.
@ For the sake of the environment
Because of the problem of proper d isposa l
of brake fl uid as we ll as the special tools
req uired and the necessa ry expert ise, we
recommend that you have the brake fluid
changed by your author ized Audi dealer.
Battery
General information
Under normal operating conditions, the bat ­
tery in your A udi does not need any mainte ­
nance . With
high outside temperatures or
long dai ly dr ives we recommend that you have
the electro lyte level checked by a service fa­
cility. T he electrolyte level shou ld also be
checked each time the battery is charged
-:;, page 245.
Have the battery checked when you take your
ve hicle in for service. You are well adv ised to
replace a battery that is older than 5 years.
W ith certa in types o f airbag deployment, the
battery is d isconnected from the vehicle elec­
tr ica l system for safety reasons¢
& in Re­
pair, care and disposal of the airbags on
page 167.
Disconnect ing the battery terminals
Some vehicle functions (power w indow regu­
lators, for example) are lost if the battery ter­
minals a re d isconnected. These functions have
to be relearned after the battery terminals a re
connected again . To prevent this, the battery
should only be d isconnected from the vehicle
e lec trica l system whe n absolu tely ne cessa ry
f or repairs.
Checkin g and fillin g 243
Vehicles not driven for long periods
If you do no t drive your vehicle over a period
of seve ra l days o r weeks, e lectr ica l compo ­
nents are g radually cut back or switched off .
This reduces energy consumption and main­
ta ins starting capability over a longer period
¢
page 204. Some of the convenience func­
tions may not operate, such as the inter ior
l igh ts or the power seat adjus tment. The con­
venience functions will be ava ilab le aga in
whe n you swi tch on the ignition and sta rt the
engine.
Winter operation
During the winte r months, battery capacity
tends to dec rease as temperatures drop. This
i s because more power is a lso consumed wh ile
s ta rt ing, and the headlight s, rea r window de­
fogger, e tc., are used more ofte n.
Avoid unnecessary powe r consumpt ion, par­
ticu larly in city traffic o r when traveling only
sho rt distances. Let yo ur au thoriz ed Aud i
de aler check the cap acity of the vehicle b at­
tery before winter sets in~ page 245. A well
charged bat tery will not on ly prevent starting
problems w hen the weather is cold, but w ill
a lso last longer.
{!) Tips
If yo ur vehicle is left s tandin g for seve ral
weeks at extreme ly low tem peratures, the
vehicle battery sho uld be removed and
stored w here it w ill not freeze . T his will
prevent it from be ing damaged and having
to be replaced.
Working on the battery
Be especially careful when working on or near
the battery.
The battery is located in the luggage compart ­
ment under the floor. Before you check any­
th ing in the luggage compartment,
read and
heed all WARNINGS
¢ .&_ .
Always heed the safety warnings , when work­
ing on the vehicle battery or the vehicle e lec­
trical system to prevent injury. •
•

24 4 Ch eck ing and filling
Th e following WARNINGS are v ery
impo rtant when w ork ing on the b att ery :
Alway s heed t he fo llowin g WARNING SYM ·
BOLS and s afety pr ecaution s wh en w orking
on the batter y.
®
Always wear ey e prot ection .
~
Batte ry a cid contains sulfuric acid .
Al way s w ea r glo ves and e ye prote c-
tion .
@
No
· spa rks
- fl ame s
- sm oking.
~
Wh en a batt ery is c harge d, it p rodu-
c e s hy drog en g as whi ch i s e xplo siv e
a nd c ould c ause persona l injury.
®
Alway s keep the b attery well o ut of
reach of childr en .
.8, WARNING
Whenever working on the battery or on
the electrical system, there is the r is k of
inju ry, acc ident and even fire. Read and
heed the following WARNINGS:
- Always wea r eye protection. Do not let
battery acid or any lead part icles get on
yo ur skin or clothing. Shield your eyes.
Explosive gases can cause blindness or
other injury.
- Battery acid contains sulfuric acid. Sulfu­
ric acid can cause blindness and severe
burns.
- Always wear gloves and eye p rotection .
Do not tilt the battery because ac id
could lea k out of the vent ilation open ­
ings.
- I f you get battery acid in your eyes or
on your sk in, immediately rinse with
cold water for severa l m inutes and get
medical attention.
- If you should ingest any battery acid,
seek medical attention immediately .
- Do not expose the battery to an open
flame, electric sparks or an open light .
- Do not smoke. -
Do not interchange the positive and neg­
ative cables.
- When working on the battery, be s ure
not to short-circu it the terminals with
too ls or other metal objects. This would
cause the battery to heat up very quickly,
which could lead to damage or explosion and pe rsonal injury.
- When a battery is charged, it produces
hydrogen gas which is explosive and
could cause personal in jury.
-Always keep the battery well out of the reach of children.
- Before work is done on the electrical sys­
tem, disconnect the negat ive ground ca­
b le.
- Before performing any work on the elec­ trical system, switch off the engine and
ignit ion as well as any electrical equip­
ment. The negative cable on the battery
m ust be disconnected.
If yo u are just go­
ing to replace a light bulb, then it is
enough to switch off the lights .
- Before disconnec ting the bat tery, switch
off the anti -theft alarm system! Other ­
wise you wi ll set off the alarm.
- When disconnecting the battery, f irst
disconnect the negative cab le and then
the positive cab le .
- Before reconnecting the battery, ma ke
sure all e lectr ica l consumers are sw itch­
ed off . Reconnect the positive cable first
and then the negative cable. Never inter­
change the cables· this could start a fire!
- Never charge a frozen or a thawed-out
battery. It could exp lode! If a battery has
frozen, then it must be replaced. A dis­
charged batte ry can freeze over at 32 °F
(0 °() .
-Make sure the vent hose is always attach­
ed to the opening on the s ide of the bat­
tery .
- Never use batteries which are damaged.
There is the danger of an explosion! Al­ ways rep lace a damaged battery .

_& WARNING
California Proposition 65 Warning:
- Battery posts, terminals and related ac­ cessories contain lead and lead com­
pounds, chemicals known to the State of
Californ ia to cause cancer and reproduc ­
t ive p roblems. Wa sh hands afte r han­
dling.
(D Note
- Do not d isconnect the ve hicle battery
when the ignition is on or when the en ­
gine is running, otherwise, you will dam­
age electron ic components in the elect ri­
cal system .
- If yo ur vehicl e is going to stand for a
l ong pe riod of time wi thout bei ng d riven,
protect the battery from "free zing", oth­
e rwise it wil l be damaged and w ill then
have to be replaced.
Battery charging
Starting the engine requires a well charged
battery.
F ig. 206 Eng ine co mpartment : c o nnecto rs fo r a charg ­
er and ju mp sta rt cab les
Alway s read and heed all WARNINGS be low
¢ &. and
¢&. in Working on the ba ttery on
page 24 4.
• Switch off th e ignit ion and a ll electrica l con­
s u mers.
• M ake sure the are a is well vent ilated when
yo u charge the bat tery.
• Open the engi ne hood
¢ page 231.
• Remove the cover@ by press ing o n the ar­
row
¢ fig . 206.
Checkin g and fillin g 245
• Open the cover @on the pos itive termina l.
• Connect the charge r co nnectors accord ing to
the instruct ions to the
jump sta rt bolts.
(Bo lts under the red cover = "posit ive", Bo lts
w ith hex head= "negative") .
• On ly now plug the mains lead for the charg ­
ing equ ipment into the wall outlet and tu rn
iton ¢_& .
• Make sure the charging rate is not over
30 amps /14.8 Volt .
• W hen the bat tery is fully c harged: T urn the
charg ing equipment off and remove the
mains lead from the wa ll out let.
• Now remove the clamps for the charging
equ ipment .
• Close the red cover on the positive pole.
• Close the hood ¢
page 232.
A discharged battery can freeze at tempera­
tures of only 32 F
0 (0 °C). Allow a frozen bat­
tery to thaw completely before attempting to
charge it ¢ ,&. . However, we recommend not
u s ing a thawed batte ry aga in because th e ba t­
te ry casing can be c racked due to i ce fo rma­
t ion an d can leak ba ttery a cid.
Battery charging (Maximum charging rate
of 30 amps/14.8 Volt )
When charg ing at low vo ltages (e.g. wi th a
trickl e charger ), the ba tte ry cables do no t
have to be dis conne cte d firs t. T he bat tery
caps should
not be opened when charg ing a
batte ry .
I t i s no t ne cessa ry to remove the battery from
t he luggage compartmen t, a nd it is a lso not
necessary to d iscon nect the cab les.
Fast charging the battery (charging rate
above 14 .8 Volts)
Fo r tec hni ca l re asons do not use a battery
c h arger that uses voltage g reater than 14.8
Volts to charge yo ur vehicle's battery.
A WARNING
Charging a battery can be dangero us.
-Always follow the operating instructions
provided by the battery charger manu­
facturer when charging your battery.

246 Checking and filling
-Never charge a frozen battery. It may ex­
plode because of gas trapped in the ice.
Allow a frozen battery to thaw out first.
- Do not reuse batteries which were fro­
zen. 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 elec­
trical spark. Do not smoke. Hydrogen gas
generated by the battery is explosive .
- To reduce the danger 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 compe­
tent technician with the proper equip­ ment.
- Battery acid that may spill during charg­
ing should be washed
off with a solution
of warm water and baking soda to neu­
tralize the acid.
(D Note
Never use a fast charger as a booster to
start the engine. This will seriously dam­
age sensitive electronic components, such
as control units, relays, radio, etc., as well
as the battery charger.
Battery replacement
The new battery must have the same specifi­
cations and dimensions as the original equip­
ment battery.
Intelligent energy management in your vehi­
cle is responsible for distributing the electri­
cal energy throughout your vehicle
¢ page 204. The intelligent energy manage­
ment system will keep the engine battery
charged better than vehicles without this sys­
tem. To make sure the additional elec trical en­
ergy is available once again after you have
changed the battery, we recommend that you install batteries of the same type and manu­
facture only (the same as those installed at
the time your vehicle was delivered). Specifi- cations are listed on the battery housing. Your
authorized dealer must code the battery in
the energy management system to enable you
to use the energy management functions cor­
rectly after replacing the battery.
The new battery must have the same capacity,
voltage (12 volts), amperage, construction and plug sealing .
When installing the battery, make sure the ig­ nition and all electrical consumers are switch­
ed
off.
(D Note
- Make sure the ventilation hose on the
side of the battery is connected, other­
wise fumes or battery acid can leak out.
- Vehicles with the Start-Stop-System* are
equipped with a special cycle-proof AGM
battery. Installing a different type of
battery can cause problems in the vehi­
cle electrical system . When replacing the
vehicle battery, always install one with the same specifications as the original
battery.
- Battery mounts and clamps must always
be secured correctly.
- Read and follow the warnings under
¢ page 243, Working on the battery be­
fore performing any work on the battery .
@ For the sake of the environment
Because of the problem of proper disposal
of a battery, we recommend your author­
ized Audi dealer change the battery for
you. Batteries contain sulfuric acid and lead and must always be disposed of prop­
erly in compliance with all environmental
regulations. Disposing of vehicle batteries
improperly is very dangerous to the envi­
ronment .

250 Tires and wheels
Groove
means the space between two adjacent tread
ribs .
Load rating (code)
means the maximum load that a tire is rated
to carry for a given inflation pressure. You
may not find this informat ion on all tires be­
cause it is not req uired by law.
Maximum load rating
means the load rating for a t ire at the max i­
mum permissible inflation pressure for that
tire.
Maximum loaded vehicle weight
means the sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity we ight, and
(d) Production options weight
Maximum (permissible) inflation pressure
means the maximum cold inflation pressure
to which a tire may be inflated. Also called
"maximum inflation pressure ."
Normal occupant weight
means 150 lbs. (68 kilograms) times the
number of occupants seated in the vehicle up
to the total seating capacity of your vehicle .
Occupant distribution
means distribution of occupants in a vehicle.
Outer diameter
means the overa ll diameter of an inflated new
tire.
Overall width
means the linear distance between the exteri­
ors of the sidewalls of an inflated tire, includ­
ing elevations due to labeling, decorations, or
protective bands o r ribs .
Ply
means a layer of rubber-coated parallel cords.
Production options weight
means the combined weight of those insta lled
regular production options weighing over 5
lbs. (2.3 kg) in excess of those standard items
which they replace, not previously considered
in curb weight or accessory we ight, including
heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and special tr im .
Radial ply tire
means a pneumat ic tire in which the ply cords
that extend to the beads are laid at substan­
t ia lly 90 degrees to the center line of the
tread .
Recommended inflation pressure
see<=> page 249, Cold tire inflation pressure.
Reinforced tire
means a t ire design to operate at higher loads
and at h igher inflation pressures than the cor­
responding standa rd tire. Reinforced tires
may be identified as "XL" "xl" "EXTRA LOAD"
' ' '
or "RF" on the sidewa ll.
Rim
means a metal support for a tire or a tire and
tube assembly upon which the tire beads are
seated.
Rim diameter
means nom inal diameter of the bead seat. If
you change your wheel s ize, you will have to
purchase new tires to match the new rim di­
ameter.
Rim size designation
means r im diameter and width .
Rim width
means nominal distance between rim flanges.
Sidewall
means that portion of a tire between the
t read and bead.

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
(D Note
Ve hicles w ith an au tomatic tra nsmission
cannot be started by pus hing o r tow ing.
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 cables
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 marked:
plus(+) cable i n mos t cases co lore d red
minu s(-) cable
in most cases colored black .
A WARNING
Batterie s contain e lec tricity, ac id, an d gas.
A ny of these can cause ve ry ser io us or fatal
inju ry. Follow the instructions below f or
safe han dling of your veh icle's b attery .
- Alway s shield you r eyes and avoid lean­
ing over the bat te ry whenever possib le.
- A dis ch arged battery c an free ze at tem­
peratures ju st be low 32 °F ( 0 °C ). Befo re
Emergency situations 283
connecting a jumpe r cab le, you must
thaw the frozen 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 . Use of batte rie s of d iffe ren t voltage
or substantially diffe 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 trap­
pe d in the ice may 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 b atter ies of differe nt voltage or
sub stant ia lly diffe ren t ca pa city (Ah) ra t­
i ng may c ause an ex plosion 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 231.
(D Note
-App lyin g a higher vo ltage booster ba t­
t ery w ill cause expens ive damage to se n­
sit ive e lectronic com ponents, such as
cont ro l units, relays, rad io, etc.
- The re must be no electrical contact be­
tween the vehicles as ot herwise c urrent
co uld a lready start to f low as soon as the
p o sit ive(+) term inals a re connected. ..,. •
•

284 Emergency situations
@ Tips
-The discharged battery must be properly
connected to the vehicle's electrical sys­
tem. When jump starting or charging the
battery, never connect the negative
ground cable to the battery negative
post because the battery manager sys­
tem must be able to detect the battery's
state of charge . Always connect the neg­
ative ground cable to the negative
ground post of the battery manager con­
trol unit.
Use of jumper cables
Make sure to connect the jumper coble
clomps in exactly the order described below!
Fig . 233 Engine co mpartment: connecto rs fo r jump
star t cab les and c harg er
Fig. 234 Ju m p sta rt in g w it h the ba ttery of anot her ve ­
h icle :@ - booster battery, @-discharge d ve hicle bat­
tery
The procedure described below for connecting
jumper cables is intended to provide a jump
start for your vehicle.
Vehicle with discharged battery:
•Turnoff lights and accessories, move lever
of automatic transmission to N (Neutral) or
P (Park) and set parking brake.
Connect POSITIVE(+) to POSITIVE(+)
(red)
• Open the red cover on the pos itive terminal
¢ fig. 233 .
1. Connect one end of the red positive cable
on the
jump start bolt c::;, fig. 234 @ (bolt
under the red cover = "positive ") of the ve ­
hicle to be started @.
2. Connect the other end to the positive ter-
mina l@ of the booster battery@.
Connect NEGATIVE (-) to NEGATIVE (-)
(black)
3. Connect one end of the black negative ca­
ble to the negat ive terminal @ of the
booster battery @.
4. Connect the other end to the
jump start
pin © (bolts with hex head bolt= "nega­
tive") of the vehicle to be started @.
Starting the engine
• Start the engine of the veh icle w ith the
booster battery@. Run the engine at a
moderate speed.
• Start engine with discharged vehicle battery
@ in the usual manner.
• If the engine fails to start, do not keep the
starter cranking for longer than 10 seconds.
Wait for about 30 second s and then try
aga in.
• With engine running, remove jumper cables
from both vehicles in the exact
reverse o r­
de r.
• Close the red cover on the positive term inal.
T he battery is vented to the outside to prevent
gases from entering the veh icle inter ior. Make
sure that the jumper clamps are well connect­
ed with their metal parts in full contact with
the battery terminals.
_& WARNING
To avoid serious personal injury and dam­
age to the vehicle, heed all warnings and
instructions of the jumper cable manufac­
turer. If in doubt, call for road service.
- Jumper cables must be long enough so
that the veh icles do not touch.
-