battery AUDI A4 CABRIOLET 2009 Owner's Manual

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Closing the engine hood
-Pull t he hood down until the pressure from the strut is
reduced.
- Let t he hood
drop down and latch in place. Do not try to
push it shut;
it may fai l 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
~ 6 .
& WARNING
To help avoid injury, before you check anything under the hood :
• Turn off the engine.
• Remove the ignition key.
• Apply the parking brake.
& WARNING (continued)
• Move selector lever of automatic transmission to "P" (Park);
put manual transmission in Neutral.
• 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:
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& WARNING (conti nued )
-First , fully apply the parking brake , move selector lever of
automatic transmis sion to "P " (Park) ; put manual transmiss ion
in Neutral.
- Always u se extreme caut ion to prevent clothing, jewelry , or
long hair from getting caught in the radiator fan, V-belts or
other moving parts , or from conta cting hot parts. Tie back hair
before starting , and wear no cloth ing that will hang or droop
into the engine.
• Minimize exposure to emission and chemical hazards
~ & .
& WARNING
California Proposition 65 Warning :
• Engine exhaust , some of its constituents , and certa in vehicle
components contain or emit chemicals known to the State of Cali ­
fornia to cause cancer and birth defects and reproductive harm . In
addition , certain fluids contained in vehicles and certain produ cts
of component wear contain or emit chemicals known to the State
of California to cause cancer and birth defects or other reproduc ­
tive ha rm .
• Battery post s, terminals and related acces sories contain lead
and lead compounds , chemicals known to the St ate of California
to cause cancer and reproductive harms. Wash hands after
handling.
0 Note
When adding f luids, always make sure that they are poured into the
p roper container o r filler opening, otherwise se rio us damage to
vehicle systems will occur .
W For the sake of the environment
To detect lea ks i n tim e, inspect t he v ehi cle floor pa n from u nde r­
neath regularly. If you see spots from oil or other vehicle fluids, have
y o ur v ehicl e inspected by an author ized Au di dea ler. •
Engine compartment
App lies to veh icles: with 2 .0 I turbo, 4-cylinder •engine
2.0 I , 4-cylinder turbo engine (200 hp )
The se are th e m ost important items that you can check .
Fig. 196 Engine comp art m ent : 2 .0 I, 4-cy lind er turbo
G) Battery ..................................... •..
0 Engine oi l fi lle r ca p ('1:::r.l ..... ... ... ....... .... .. .
© Bra ke fluid reservoir ( ) ..... ... .... ... ... ... .. . .
© Engine oil dipstick (orange) ........ .......... ... .
Vehic le care
N
N
I
261
255
2 60
25 4 ...
irechnical data

-Ch
ecking and filling
_ _..;:::;__=----------------
©
©
0
Coolant expansion tank (.J_ J .. .. .. .. . ... .. .. .... .
Windshield/head light washer container ( O ) ..... .. .
Po wer steering re servoi r
& WARNING
Before you check anything in the engine compartment , always
read and heed all WARNINGS
=> & in "Working in the engine
c ompartment " on
page 250. •
Applies to veh icles : w ith 6 ·cy lind er engine
3.2 liter , 6-cylinder engine (255 hp)
258
266
217
Th ese a re t he most im por tan t it em s th at you c an ch eck.
F ig . 197 Engine compartment : 3.2 liter , 6- cylinder
G) Battery ... ... .. ...... .... ... .... .... .... ..... .
0 Bra ke fluid reservoir ( l ....... .. .. .. .. ...... .. .
© Engine oil fi ller cap ('t:::n) ..•. ..• ..... .•. ...• ..•..
26 1
260
255
©
©
©
0
Engine oil dipstick (orange) ...... ..... ... .... ... .
Coolant expansion tank
( -L J .. ... ... . .... ... ... .. .
W indshield/headligh t washer c ontainer (O l .. .... . .
Powe r steering rese rvoir
& WARNING
Before you check anything in the engine compartment, always
read and heed all WARNINGS
=> & in "Working in the engine
compartmen t" on
page 250. •
Engine oil
Engine oil specifications
254
258
266
2 17
The engine oil used in your Audi needs the right kind of
oil.
The engi ne in y our Audi is a sophisticated powe rp lan t tha t was built
to exacting specifications. This engine needs the right kind of
eng ine oil that meets specifications regarding quality and viscos ity
so that it can run smoothly and reliably . Choosing the right oil and
changing oil within the time and mileage interva ls printed in your
vehic le's Warranty
& Maintenance booklet matters a lot more today
than it did years ago. Audi has developed a special quality standa rd
f or e ngin e oil tha t w ill help assure that your vehicle's engine will get
the lubrication it needs for proper operation.
Modern engine lubrication has taken a quantum leap i n the last few
years. Many synthetic oils ava ilable today provide better engine
lubrication that can o utlast traditional petro leum -based oil s,
making them a smart choice for use throughout the life of your Audi.
Whether you use synthetic or petro leum -based engine oil, the oi l
tha t you use mus t conform to Audi 's oi l qual ity standard VW 502 00
to help keep your vehicle's engine running smoothly and help ._

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•
The brake fluid reservoir is located at the rear partition of the engine
compartment on the left side~
page 252 .
The fluid level may drop slightly after some time due to the auto­
matic adjustment of the brake pads. This is not cause for alarm .
If the brake fluid level falls
considerably below the "MIN" mark, the
brake warning/indicator light (U .S. models :
BRAKE, Canadian models :
(CD) ) wi ll come on
~ page 23 and ~ page 30. Do not continue to
operate the vehicle. The complete brake system should be thor ­
oughly checked by an authorized Audi dealer or qualified workshop
and the cause corrected . If the brake fluid level is too low, the brake
warning/indicator light will illuminate. Contact an authorized Audi
dea ler
immediately .•
Changing brake fluid
Have the brake fluid changed by an experienced techni­
cian.
Brake fluid absorbs moisture from the air . If the water content in the
brake fluid is too high, corrosion in the brake system may result
after a period of time. The boiling point of the brake fluid wil l also
decrease considerably and decrease braking performance.
Therefore, the brake fluid must be changed
every two years. Always
use new brake fluid which conforms to Federa l Motor Vehic le Stan­
dard "FMVSS 116 DOT 4".
The brake fluid reservoir can be difficult to reach, therefore, we
recommend that you have the brake fluid changed by your autho ­
rized
Audi dealer. Your dealer has the correct tools, the right brake
fluid and the know -how to do this for you.
& WARNING
• Brake fluid is poisonous. It must be stored only in the closed
original container out of the reach of children!
& WARNING (continued)
• Brake failure can result from old or inappropriate brake fluid.
Observe these precautions :
- Use only brake fluid that meets SAE specification
J 1703 and
conforms to Federal Motor Vehicle Standard 116. Always check
with your authorized Audi dealer to make sure you are using
the correct brake fluid. The correct type of brake fluid is also
indicated on the brake fluid reservoir .
- The brake fluid must be new . Heavy use of the brakes can
cause a vapor lock if the brake fluid is left in the system too
long. This can seriously affect the efficiency of the brakes as
well as your safety . This could result in an accident.
0 Note
Brake fluid wil l damage the paint of your vehicle .
ci> For the sake of the environment
Because of the problem of proper disposal of brake fluid as well as
the special tools required and the necessary expertise, we recom­
mend that you have the brake fluid changed by your authorized Audi
dealer. •
Battery
General information
Under normal operating conditions, the battery in your Audi does
not need any maintenance. With
high outside temperatures it is
advisab le however to check the fluid level at regular intervals
through the transparent battery housing. Also check the fluid level
each time you charge the battery . After charging the battery
~ page 265, you shou ld likewise check the battery acid level. ...
Vehic le care

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Have the battery checked when you take your vehicle in for service .
You are well advised to replace a battery that is older than 5 years.
Disconnecting the battery terminals
Some vehicle functions (power window regulators, for example) are
lost if the battery terminals are disconnected . Th ese functions have
to be relearned after the battery terminals are connected again. To
prevent this, the battery should only be disconnected from the
vehicle electrical system when absolutely necessary for repairs .
Vehicles not driven for long periods
If you are going to let your vehicle stand for a long time and not
drive it, you should remember there are electrical components
which are still functioning and they will draw energy from the
battery and drain it, for example, the engine immobilizer. To prevent
this, you can either charge the battery occasionally to keep it in
good working condition or you can disconnect the negative cable
on the battery.
Winter operation
During the winter months, battery capacity tends to decrease as
temperatures drop. This is because more power is also consumed
while starting, and the headlights, rear window defogger, etc., are
used more often.
Avoid unnecessary power consumption, particularly in city traffic or
when traveling only short distances . Let your authorized Audi dea ler
check the capacity of the vehicle battery before winter sets in
=>
page 265 . A we ll charged battery wil l not only prevent starting
problems when the weather is cold, but will also last longer.
Replacing battery
The new battery must have the same capacity, voltage (12 volts),
amperage, construction and plug sea ling, as the origina l battery.
Specifications are listed on the battery housing. Batteries specially
developed by Audi fulfill the maintenance, output, and safety
requirements. When installing the battery, make sure the ignition and all electrical
consumers are switched off=>
0.
We recommend that you use maintenance -free or cyc le-resis­
tant/leak-proof
batteries according to the standards TL 825 06 (from
December 1997) and VW 7 50 73 (from August 2001).
Replacing the battery should be carried by a qualified workshop.
Please follow the instructions on the battery cover.
0 Note
• All work on the battery requires technical knowledge. Please
contact an Audi dealership or another authorized facility for ques­
tions about the battery -danger of acid burns and exp losion hazard!
• Make sure the ventilation hose on the side of the battery is
connected, otherwise fumes or battery acid can leak out.
• Battery holder and terminals always have to be secured correctly.
• Before all work on the battery follow the
warnings below=> & in
"Working on the battery" on
page 263.
Because of the problem of proper disposal of a battery, we recom­
mend your authorized Audi dealer change the battery for you.
Batteries contain sulfuric acid and lead and must always be
disposed of properly in compliance with all environmental regula ­
tions . Disposing of vehicle batteries improperly is very dangerous to
the environment . Make sure that the removed battery cannot over ­
balance, otherwise sulfuric acid might escape!
[ i ] Tips
If your vehicle is left standing for several weeks at extremely low
temperatures, the vehicle battery should be removed and stored
where it will not freeze. This will prevent it from being damaged and
having to be replaced.•

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Working on the battery
Be especially careful when working on or near the battery.
•·•·•·•
Fig. 204 Engine
compartment, plenum
chamber : battery cover
Before you check anything in the engine compartment,
always read and heed all WARNINGS=>
& in "Working in
the engine compartment" on
page 250.
Removing the cover
-Push the cover in the direction of the arrow => fig. 204.
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:
• 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 openings .
- 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 .,,.
Vehic le care irechnical data

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& WARNING (continued )
battery to heat up very q uickly, which could lead to damage or
explo sion and per sonal injury .
• When a battery is charged , it produces hydrogen gas whic h i s
explo sive and could cause per son al injury .
• Always keep the battery well out of the re ach of children.
• Before work i s done on the electrical system , di sconne ct the
negative ground cable .
• Before per forming any work on the ele ctri cal 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
light s.
• Before disconnecting the battery , switch off the anti -theft
alarm system! Otherw ise you will set off the alarm .
• When di sconne cting the battery , fir st di sconnect the negative
c able and then the positive cable .
• Before reconnecting the battery , make sure all electrical
c onsumers are sw itched off . Reconnect the posit ive 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
e xplode! If a battery has frozen , then it must be replaced. A
discharged batte ry 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! Alway s replace a damaged battery.
& WARNING
California Propo sition 65 Warning :
& WARNING (continued )
• Battery post s, terminals and related accessories contain le ad
and lead compounds , chemicals known to the State of California
to cause can cer and reproduct ive problems . Wash hand s after
handling .
0 Note
• Do not disco nnect t he vehicle battery when the igni tion is
switched on or when the engine is running , otherwise, you wi ll
damage e le ctronic c ompone nts in the electrical syst em.
• I f your vehicle is going to stand for a long period of time without
being dr iven, protect the battery from "freezing" otherwise it wil l be
damaged and wi ll then have to be replaced .•
Checking the battery acid level
T he aci d l evel of a co nv enti onal ba ttery c an be c hecke d
vis ually.
·•
Fig . 2 05 Engine
c ompartment : Battery
w it h o pen b atter y
compartment cover
T he leve l of acid inside the b atte ry is vis ib le th rough the
case a t the fo nt. Ac id le ve l shou ld be ex actly at t he " max "
m ark or v ery clo se belo w it.
~

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•
If t he electrolyte level is be low the "min" level, have an authorized
w or ksho p fil l the ba tte ry ce ll wit h
distilled water.
0 Note
Do not over fill th e batt ery, ot he rwi se ba ttery acid will overflow
through the vent opening. This can damage the paint and cause
cor rosion .•
Battery charging
Starting the e ngin e requi res a well charge d ba ttery.
- Always read and heed all WARNINGS~ & in "Working
o n th e b attery" on
page 263 and ~ ,& .
- S witch off the ignitio n an d all elec trical co nsu mers .
- Make sur e th e are a is well ventilat ed whe n y ou c harge
t h e ba ttery .
- Co nn ect cha rger cables. Charger cables must always be
connected POSITIVE
G) to POSITIVE G) and NEGATIVE Q
to NEGATIVE Q .
- Sw itch o n the cha rge r.
- Make s ure the c har ging rate is not ove r 6 amps.
- Tur n o ff the cha rger ~ ,& .
- Disco nnect t he charg er ca bles .
- Conne ct both batter y ca bles to the b attery if n ecessa ry-
first plu s, th en minus .
It is not necessary to re move t he bat tery from th e eng in e compart ­
ment, and it is also not necessa ry to disconnect the cab les. Norma
lly, a battery should be charged at no more than 10 percent
o f its rate d capaci ty.
For example, a char ging current of 4 .5 amps wou ld be used on a
battery rated at 45 Ah . Rated capacity of the battery in you r vehicle
i s list ed o n the batt ery housi ng.
T he battery caps should
not be opened when charging a battery.
& 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 e xplode because of gas
trapped in the ice . Allow a frozen battery to thaw out first .
• Do not reuse batter ies 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 danger of explo sion, never connect or di sconnect
c harger cables while the charger is operating.
• Fast charging a battery is dangerous and should only be
attempted by a competent techni cian 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 fas t char ger as a booster to start the eng ine. Th is wi ll
seriously damage sensitive electronic components, such as control
units, relays, rad io, etc., as w ell as th e battery c harg er. •
Ve hic le care

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toring system* would not be able to monitor the tire pressure or
warn you if it is necessa ry.
• T he battery inside of the tire pressure sensor has a limited
service life.
• Always drive with the valve stem caps securely mounted. We
r ecommend us ing facto ry insta lled va lve stem caps. Ask you r autho ­
rized Audi dealer to replace lost va lve stem caps.
T he installation of rep lacement tires with steel cord body p lies in
t he tire sidewall may cause mal functi on of the tir e pressure mo ni­
toring system , and is not recommended (cord material information
in mo lded o n th e ti re sid ewa ll) .
Always check your tire pressure monitoring system * indicator after
r eplacing one or mo re ti res on your veh ic le . I f the ti re p ress ure
m onito ring syste m* ind icator flashes, or is o n, your s ystem is not
wo rking properly . Your replacement t ire might be incompatible with
yo ur tir e pressure mon ito ring system* , o r so me compo nen t of th e
tire p ressure monitoring system * may be damaged .
& WARNING
• Using incorrect or unmatched tires and I or wheels or improper
tire and wheel combinations can lead to loss of control , collision
and serious personal injury .
• Always use t ires , rims and wheel bolts that meet the specifica­
tions of original factory-installed tires or other combinations that
have been specifically approved by the vehicle manufacturer.
• Tires age even if they are not being used and can fa il suddenly,
espe cially 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
lower speed s.
• Never mount used tire s on your vehicle if you are not sure of
their "previous history ." Old used tire s may have been damaged
even though the damage cannot be seen that can lead to sudden
tire f ailure and loss of vehicle control.
& W ARNING (continued )
• All four wheels mu st be fitted with radial tires of the same type,
size (rolling circumference ) and the same tread pattern. Driv ing
with different tires redu ces vehicle h andling and can lead to a loss
of control.
• If the spare tire is not the same as the tires that are mounted
on the vehicle - for e xample with winter tire s - only u se the spare
tire for a short period of time and drive with extra care . Refit the
normal road wheel as soon as safely possible.
• Never drive faster than the maximum speed for which the tires
on your vehicle are rated because tires that are driven faster than
the ir rated speed can fail suddenly .
• Overloading tires cause heat build-up, sudden tire failure ,
including a blowout and sudden deflation and loss of control .
• Temperature grades apply to tires that are properly inflated and
not over or underinflated .
• For te chnical reasons it is not always possible to use wheels
from other vehicle s -in some cases not even wheels from the
same vehicle model.
• If you install wheel trim discs on the vehicle wheels, make sure
that the air flow to the brakes is not blocked. Redu ced airflow to
the brakes can them to overheat , increasing stopping distances
and causing a collision.
• Run flat tire s may only be used on vehicle s that were equipped
with them at the fa ctory . The vehicle must have a cha ssis designed
for run flat tires and a factory -installed tire pressure monitoring
s ystem that indicate s a loss of tire pressure . Incorre ct use of run
flat tires can lead to vehicle damage or accidents . Check with an
autho rized Audi dealer or t ire specialist to see if your vehicle can
be equipped with run flat tires .
If run flat tires are used , they mu st
be installed on all four wheels . Mixing tire types is not permitted. .,

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Emergency situations
General
This chapter is intended for trained emergency crew s and working
personnel who have the necessary tools and equipment to perform
these operations. •
Starting by pushing or towing
0 Note
Vehicles with an automatic tran smission cannot be started by
push ing o r towing . •
Starting with jumper cables
If n ece ssa ry, th e engin e ca n be sta rte d by conne cti ng it to
the battery of another veh ic le .
If the engin e should fai l to start because of a discharge d or weak
b at te ry, the batt ery can be con nected t o the batt er y of
another
ve hic le, using a pair of jumper cables to start the engine.
Jumper cables
Use
only jumper cables of suffici ently large cross section to safely
c arry the st ar ter curre nt. Refer to th e m anuf actu rer's sp ec ificati ons.
Use on ly j umper ca bles with
isolated termi na l clam ps and properly
marked fo r distinct ion :
plus (+l cable in mo st c ases c olor ed red
minus (-l cable in most cases colored black.
& WARNING
Batteries contain electricity , acid, and gas. Any of these can cause
very serious or fatal injury. Follow the instructions 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 already freeze at temperatures just
below 32 °F (0 °C). Before connecting a jumper cable, the frozen
battery must be thawed 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 explosion.
• Vehicle batteries generate e xplosive gases . Keep sparks , 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 have a 12-Volt
rating . The capacity (Ahl of the booster battery should not be
lower than that of the discharged battery . Use of batteries of
diffe rent voltage or substantially different "Ah " rating may cause
an explosion and personal injury .
• Never charge a frozen battery. Gas trapped in the ice may cau se
an explosion .
• 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 (Ahl of the booster battery should not be lower than that of the discharged battery . ...