2010 AUDI A5 CABRIOLET battery

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Working on the battery
Be especially careful when working on or near the
battery.
The battery is located in the luggage compartment under the
floor. Before you check anything in the lu~gage compart­
ment, read and heed all WARNINGS=>
&-
Always heed the safety warnings, when working on the vehicle
battery or the vehicle electrical system to prevent injury.
The following WARNINGS are very important when
working on the battery:
Always heed the following WARNING SYMBOLS and safety pre­ cautions when working on the battery.
@
®
Always wear eye protection.
Battery acid contains sulfuric acid. Always wear
gloves and eye protection.
No
- sparks
- flames
- smoking .
When a battery is charged, it produces hydrogen
gas which is explosive and could cause personal
injury.
Always keep the battery well out of reach of chil­
dren .
& WARNING
Whenever working on the battery or on the electrical system,
there is the risk of injury, accident and even fire. Read and heed
the following WARNINGS:
& WARNING (continued)
• Always wear eye protection. Do not let battery acid or any lead
particles get on your skin or clothing. Shield your eyes. Explosive
gases can cause blindness or other injury.
• Battery acid contains sulfuric acid. Sulfuric acid can cause
blindness and severe burns.
-Always wear gloves and eye protection. Do not tilt the
battery because acid could leak out of the ventilation open­
ings.
- If you get battery acid in your eyes or on your skin, immedi­
ately rinse with cold water for several minutes 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 negative cables.
• When working on the battery, be sure not to short-circuit the
terminals with tools or other metal objects. This would cause the
battery to heat up very quickly, which could lead to damage or
explosion and personal injury.
• When a battery is charged, it produces hydrogen gas which is
explosive and could cause personal injury.
• Always keep the battery well out of the reach of children.
• Before work is done on the electrical system, disconnect the
negative ground cable.
• Before performing any work on the electrical system, switch
off the engine and ignition as well as any electrical equipment.
The negative cable on the battery must be disconnected. If you are
just going to replace a light bulb, then it is enough to switch off the lights. ..,_

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& WARNING (continued)
• Before disconnecting the battery, switch off the anti-theft
alarm system! Otherwise you will set off the alarm.
• When disconnecting the battery, first disconnect the negative
cable and then the positive cable.
• Before reconnecting the battery, make sure all electrical
consumers are switched off. Reconnect the positive cable first and
then the negative cable. Never interchange the cables -this could
start a fire!
• Never charge a frozen or a thawed-out battery. It could
explode! If a battery has frozen, then it must be replaced. A
discharged battery can freeze over at 32°F (0°C).
• Make sure the vent hose is always attached to the opening on
the side of the battery.
• Never use batteries which are damaged. There is the danger of
an explosion! Always replace a damaged battery.
& WARNING
California Proposition 65 Warning:
• Battery posts, terminals and related accessories contain lead
and lead compounds, chemicals known to the State of California
to cause cancer and reproductive problems. Wash hands after
handling.
0 Note
• Do not disconnect the vehicle battery when the ignition is
switched on or when the engine is running, otherwise, you will
damage electronic components in the electrical system.
• If your vehicle is going to stand for a long period of time without
being driven, protect the battery from "freezing", otherwise it will be
damaged and will then have to be replaced. •
Vehicle OP-eration
Battery charging
Starting the engine requires a well charged battery.
Fig. 225 Engine
compartment: Connec­
tors for charger and
jumper cables
Always read and heed all WARNINGS below::::;, & and::::;, &
in "Working on the battery" on
page 292.
-Turn off the ignition and all electrical consumers.
- Make sure the area is well ventilated when you charge the
battery .
- Open the engine hood ::::;,
page 2 79.
- Remove the cover over the positive terminal in the plenum
chamber.
- Open the red cover on the positive pole::::;, fig. 225.
- Connect the charger connectors according to the instruc-
tions to the jump start bolts . (Bolts under the red cover=
"pos itive", Bolts with hex head = "negative").
- Only now plug the mains lead for the charging equipment
into the wall outlet and turn it on::::;, &.
- Make sure the charging rate is not over 30 arnps/14.8
Volt. ....
Vehicle care Do-it-yourselt service iTechnical data

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- When the battery is fully charge d: T urn th e charg ing
equ ipment off an d remove the ma ins lea d from t he wall
ou tle t.
- Now remove the clamps for th e ch ar ging equip men t.
- Close the red cover o n the posit ive po le.
- Close the hood
=:> page 280 .
A discharged battery can freeze at tempe ra tu res of only 3 2 °F ( 0 °C) .
Allow a froze n battery to thaw comp lete ly before attempt ing to
charge it~ & . H owever, we recommend not using a thawed batte ry
again because the battery casing can be c rack ed d ue to ice format ion
and can lea k battery acid.
Battery charging (Maximum charging rate of 30
amps/14.8 Volt)
Wh en charging a t /ow voltages (e.g. with a trickle charger), t h e
battery cables do not have to be disconnected first. The battery caps
should not be opened w hen c ha rging a ba ttery.
It is not necessary to remove the battery from the luggage compart ­
me nt.
Fast charging the battery (charging rate above 14.8
Volts)
For technical reasons do not use a battery cha rger that uses voltage
grea ter than 14.8 Vol ts to cha rge yo ur vehicle's batte ry.
& WARNING
Charging a battery can be dangerous .
• 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.
& WARNING (c on tinued )
• 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 electr ical spark . Do not smoke . Hydrogen gas gener­
ated by the battery is explosive .
• To reduce the danger of explosion, never connect or disconnect
charger cable s while the charger i s 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 ac id.
0 Note
N ever use a fast charger as a booster to start the engine. This w ill seri·
ously d amage sens it ive e lec tronic components, suc h as con trol units,
re lays, rad io, etc., as well as t he battery charger. •
Battery replacement
Th e ne w batt ery m us t hove the s ome speci fic ati ons and
d imensio ns as the origi nal e quip ment battery.
Inte lligent e ne rgy management in yo ur vehicle is respo nsib le for
dis tribu ting the elec trical energy througho ut yo ur vehicle
~ page 247. The intelligent energy management system will keep
t he e ngine bat tery ch arged bette r then vehicles wi thou t this syste m.
T o make sure the addi tional e lectr ica l energy is available once aga in
after you have changed the batte ry, we recommend that yo u inst all
batter ies of the same type a nd m anuf actu re only ( the same as t hose
installed at the time yo ur vehicle was delive red). Specificat ions are
listed o n the batte ry hous ing . You r a utho rized Audi dealer w ill then
code the battery management control unit. .,_

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If it is not poss ible to use a ba ttery of this type, the new battery must
h ave the same capacity, voltage (12 volts), amperage, const ruct ion
and plug sealing .
When installing the battery, make sure the ignition and all electrical
consumers are turned off .
0 Note
Make sure the vent ilation hose on the side of the battery is
connected, otherwise fumes or battery acid can leak out.
c£' For the sake of the environment
Because of the problem of proper disposal of a battery, we recom­
mend you r author ized Audi dealer change the battery fo r you .
Batteries contain sulfuric acid and lead and must always be disposed
of properly in compliance with all env ironmenta l regu lations.
Disposing of vehicle batteries improperly is very dangerous to the
environment. •
Windshield/headlight washer
container
Fig. 226 Engin e
c o mpa rt m ent : W in d­
s hiel d an d hea dlight*
wa sh er fl uid containe r
Vehicle OP-eration
The washer fluid container is marked with the symbol¢, on
i t s cap.
- Before you check anything in the engine compartment,
always read and heed all WARNINGS ~ & in "Working
in the engi ne compar tment" on
page 280 .
-Lift the filler cap tongue to add washer fluid. You can fill
the container to the top.
- Press the cap back onto the filler neck after filling the
co ntainer.
You can find the reservoir capacit y in the table in=> page 342.
To prevent lime res idue from build ing up on the sp ray jets, use
distilled water when refilling . Always add a glass cleaner solution
(with frost protection in the winter) .
0 Note
Do not mix engine coo lant antifreeze or any other additives to fill up
the windsh ield washer reservo ir. •
Vehicle care Do-it-yourselt service iTechnical data

-~_T_ ir_e_ s_ a_ n_ d_ w_ h_e_ e_ ls _______________________________________________ _
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 infla­
tion pressure. You may not find this information on all tires because
it is not required by law.
Maximum load rating
means the load rating fo r a tir e at the maximum permissible inflation
pressure for that tire.
Maximum loaded vehicle weight
means the sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight, 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 distr ibution of occupants in a vehicle .
Outer diameter
means the overall diameter of an inflated new tire.
Overall width
means the linear distance between the exteriors of the sidewalls of
an inflated tire, including elevations due to labeling, decorations, or
protective bands or ribs.
Ply
means a layer of rubber -coated paralle l cords.
Production options weight
means the combined weight of those installed regular production
options weigh ing over 5 lbs. (2.3 kg) in excess of those standard
items which they replace, not previously considered in curb weight or
accessory weight, including heavy duty brakes, ride levelers, heavy
duty battery, and specia l trim .
Radial ply tire
means a pneumatic tire in which the ply cords that extend to the
beads are laid at substantially 90 degrees to the centerline of the
tread .
Recommended inflation pressure
see=> page 297, "Cold tire inflation pressure".
Reinforced tire
means a tire design to operate at higher loads and at higher inflation
pressures than the corresponding standard tire. Reinforced t ires may
be identified as "XL ", "x l", "EXTRA LOAD", or "RF" on the sidewall.
Rim
means a metal support for a tire or a tire and tube assembly upon
wh ich the tire beads are seated .
Rim diameter
means nominal diameter of the bead seat . If you change your wheel
size, you w ill have to purchase new tires to match the new rim diam­
eter .
Rim size designation
means rim diameter and width.
Rim width
means nominal distance between rim flanges.

Emergency situations --------------=----Efffll
Emergency situations
General
This chapter is intended for trained emergency crew s and working
personnel who ha ve the necessar y tools and equipment to perform
the se operations . •
Starting by pushing or towing
(D Note
Vehicles with an automatic transmis sion cannot be started by
pushing or towing .•
Starting with jumper cables
If necess ary, the engine can be started by connecting it to
the battery of an other vehicle .
If the engine shou ld fai l to start because of a discharged or weak
battery, t he battery can be co nnecte d to the battery of
another
vehicle, using a pair of jumper cable s to start the engine .
Jumper cables
Use only jumper cables of suffic ient ly large cross section to carry the
sta rter cur ren t safely . Refe r to the manufacture r's specifications.
Use on ly j umper cab les with
insulated te rm ina l clamps w hich are
distinct ly marked :
plus(+) cable in most cases colo red red
minus (-) cable i n most cases colored black.
Safety first
& WARNING
Batterie s contain electricity, acid, and gas . Any of these can cause
very serious or fatal injury . Follow the inst ructions below for safe
handling of your vehicle 's battery .
• Always shield your eyes and avoid leaning over the battery
whenever possible.
• A discharged battery can freeze at temperatures just below
32 °F (0 °C). Before connecting a jumper cable, you must thaw the
frozen battery completely , otherwise it could explode.
• Do not allow battery acid to contact eyes or skin . Flush any
contacted area with water immediately .
• Improper use of a booster battery to start a vehicle may cause
an e xplosion.
• Vehicle batteries generate e xplos ive gases. Keep spa rks, flame
and lighted cigarettes away from batteries.
• Do not try to jump start any vehicle with a low acid level in the
battery.
• The voltage of the booster battery must also h ave a 12 -Volt
rating. The capacity (Ah) of the booster battery should not be
lower than that of the discharged battery. Use of batter ies of
different voltage or sub stantially different "Ah " rating may cau se
an explosion and personal injury.
• Never charge a frozen battery . Ga s trapped in the ice may cause
an e xplosion.
• Never charge or use a battery that has been frozen. The battery
case may have be weakened.
• Use of batteries of different voltage or substantially different
capacity (Ah ) rating may cause an explosion and injury . The
capacity (Ah ) of the booster battery should not be lower than that
of the discharged battery. _..
Vehicle care Do-it-yourself service Technical data

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& WARN ING (con tin ue d)
• Before you che ck anything in the engine compartment, always
read and heed all WARNINGS~
page 272, "Engine compart­
ment ".
0 Note
• App lying a higher vo ltage booster battery will cause expens ive
damage t o sens it ive e lec tron ic compone nts, such as contro l units,
re lays, rad io, etc.
• The re must be no elect rical contact between the veh icles as othe r­
w ise current could already start to flow as soon as the pos it ive( +)
t erminals a re connected.
[ i ] Tips
Th e d ischarged ba ttery mus t be p roper ly connec ted to t he veh icle's
electrical system. When jump starting or charging the battery , never
conne ct the negative grou nd ca ble to the ba ttery negative post
because the battery manager system must be ab le to detect the
ba ttery's state of charge. A lways connec t the negat ive g round cable
to the negative ground post of t he battery manager cont rol un it .•
Use of jumper cables
fvf ake sure t o con nect the j umpe r ca ble clam ps i n ex a ctly
the order describ ed belo w!
Fig. 248 Engine
comp artment : Co nnec­
t o rs f or jump er cabl es
a nd c harger
Fig . 249 Jump
sta rtin g with the
b at tery of another
ve hicle :@ disc harge d
v ehicle battery ,©
bo oste r battery
The procedure descri bed below for con nec ting ju mper cables
is i nten ded to prov ide a jump start for your veh icle .
Vehicle with discharged battery:
-Turn off lights and accesso ries, move l ever of au to m atic
tra nsmi ssio n to
N (Ne utr al) or P (Park) an d se t parking
bra ke .
~

Emergency situations Ill
-------------=----
Connect POSITIVE (+) to POSITIVE (+) (red)
- Remove the cover above the jump start connectio n.
- Open the red cover o n the positive pole~
page 334,
fig. 248.
1 . Connect one e nd of the pos it ive cable ( red) on the
jump
start bolt~
page 334, fig. 249 (D (Bolts under red cover
= "positive") of the veh ic le to be started @.
2 . Connect the other end to the positive te rminal @ of the
booster ba ttery @.
Connect NEGATIVE(-) to NEGATIVE(-)
(black)
3. Con nect o ne end to the negative ter minal ® of the
boost er batte ry @ .
4. Connect the other end o f the nega tive cab le (black) to the
jump start bolt© (Bolts with hex head = "ne gative") of
the vehicle to be starte d @ .
Starting the engine
- Start the e ngine of t he ve hic le w ith the boos ter ba ttery.
Run the engine at a moderate speed.
- Start eng ine w it h discharged ve hicle bat tery in t he usu al
manner .
- If the engine fai ls to sta rt: do not k eep the s tarter
c ra nki ng for longer tha n 1 0 seco nds. Wait for a bou t
30 se conds and then t ry again.
- With engine ru nni ng, remove jumper cables from bot h
ve hicle s in th e exac t
re verse ord er.
- Close t he red cover on the pos it ive po le.
Safety first
T he battery is vented to the outside to prevent gases from enter ing
t he ve hicl e inter ior. Make su re tha t the ju mper clamps are we ll
connected with the ir
metal parts in full contact with the battery
terminals .
& WARNING
To avoid serious personal injury and damage to the vehicle, heed
all warnings and instructions of the jumper cable manufacturer . If
in doubt, call for road service .
• Jumper cables must be long enough so that the vehicles do not
touch.
• When connecting jumper cables , make sure that they cannot
get caught in any moving part s in the engine compartment .
• Do not bend over the batteries · danger of chemical burns!
• The battery cell locking screws mu st be tightened securely .
• Before you che ck anything in the engine compartment, always
read and heed all WARNINGS=>
page 272, ''Eng ine compart­
ment ".
0 Note
Imprope r hoo k-up o f jumpe r cab les can ruin the gene rator.
• Always connect POSITIVE( +) to POSITIVE(+), and NEGATIVE( -)
t o NEG ATI VE( -) ground pos t of the ba tte ry m anag er cont rol unit.
• Check that all sc rew p lugs on the battery cells are screwed in
fi rm ly . If no t, tig hten plugs prio r to con nectin g clamp on neg ative
battery terminal.
• P lease note that the proced ure for connecting a jumper cable as
described above app lies specifically to the case of your vehicle being
jum p st arted. When you a re giving a jump sta rt to anot her vehicle, do
not connect the negative( -) cab le to the negative (-) terminal on the
discharge d batte ry © =>
page 334, fig. 249 . Instea d, sec urely
connect the negative( -) cable to either a solid meta l component t hat
is f irm ly bolted to t he eng ine b lock or to the eng ine b lock itself. If the .,_
Vehicle care Do-it-yourself service Technical data