2010 AUDI A5 CABRIOLET battery replacement

Opening and closing
(I) Tips
• The operation of the remote control key can be temporarily
disrupted by interference from transmitters in the vicinity of the
vehicle working in the same frequency range (e.g . a cell phone, radio
equipment).
• If you open the driver's door with the key left in the ignition lock,
a chime will sound. This is your reminder to remove the key and lock
the door .
• For security reasons, replacement keys are only available from
Audi dealers.
• For Declaration of Compliance to United States FCC and Industry
Canada regulations=>
page 346 . •
Check Light in the master key
The check light in the master key provides information
about different conditions.
Fig. 24 Check light in
t he master key
The check light comes on briefly once when a button is pressed, and
during an "inquiry" by the convenience key system. If the check
light does not come on, the battery is dead and has to be
replaced. In addition, when the battery is dead the symbo l appears
in the instrument cluster display as well as the message :
Please change key battery
Battery replacement => page 38. •
Master key battery replacement
•
Fig. 25 Remote
master key: Removing
the mechanical key
Fig. 26 Remote
master key: Removing
the battery holder
We recommend having the battery changed by an authorized
Audi dealer. However, if you wish to replace the dead battery
yourself, proceed as follows:
- Press the release button©~ fig. 25 . ..,.

-Pull the mechanical key® out of the master key.
- Press the release button@=>
page 38, fig. 26 on the
batte ry holder and at the same time pull the battery
holder out of the master key in the direction of the arrow.
- Install the new battery CR 2032 with the"+" sign facing
down.
- Push the battery holder carefully into the master key.
- Install the mechanical key.
~ For the sake of the environment
Dispose of dead batteries properly so as not to pollute the environ­
ment.
(I] Tips
T he replacement battery must be the same specification as the
original. •
Removing the mechanical key
-Press the release button@=> fig. 27.
Con tro ls a nd e quip ­
m en t
Fig. 27 Remote
master key: Removing
the mechanica l key
Vehicle OP-eration
Opening and closing
-Pull the mechanical key ® out of the master key.
Using the mechanical key, you can
• Lock and unlock" the storage compartment on the passenger's
side =>
page 87.
• Lock and unlock the vehicle manually => page 44 if this should not
be poss ible with the master key .•
Emergency unlocking of the ignition key
In the event of malfunctions in the electrical system, it
may happen that you cannot remove the ignition key.
Fig. 28 Ignition
switch with igni tio n
key
If you are unable to remove the ignition key, for example
because the vehicle battery is discharged, proceed as follows:
- Press the release button ©=> fig . 28 for example with a
ball point pen and pull the mechanical key® out of the
master key.
- Lock the vehicle using the mechanical key=>
page 44.
-Have the electrical system inspected by an authorized Audi
dealership. •
Vehicle care Do-it-yourselt service iTechnical data

Seats and storage
- Light your cigarette from the red-hot heating co il of the
cigare tte ligh ter .
- Return the cigarette lighter to its socket .
Using the socket
- Remove the cigarette lighter.
- Insert the plug of the electrical device into the cigarette
ligh ter socke t.
The socket o f the ciga re tte lighter may be used for 12-volt appliances
w ith maximum consumption of up to 100 watts, such as a flash light,
small vacuum cleane r, etc.
Before you purchase any accessor ies, always read and follow the
information in =>
page 345, "Additional accessor ies and parts
replacement" .
& WARNING
• Use care wh en u sing the cigar ette lighter . Inattentive or unsu ­
pervised u se of the cigarette lighter can cause burns -risk of
injury!
• The cigarette lighter work s when the ignition is swit ched off or
w ith the ignition key removed . Children should nev er be left unsu ­
pervised in the vehicle, or there could be risk of fire!
• The po wer outlets and therefore the electrical accesso ries
c onnected to them ope rate only with the ignition on . Improper
use of the outlet s or of electrical acce ssor ies can lead to serious
injurie s or cau se a fire. For this rea son , children should ne ver be
left unatt ended in the veh icle -they could be injured!
0 Note
• To avoid damag ing the socket, only use plugs that fit p roperly . •
Only use the cigarette lighter socket as a power source for elec­
t rical accessories for short du rat ions. Use the socke ts * in the vehi cle
w hen a power sou rce is needed for longer durations .
(I] Tips
When the engine is off and accessories a re st ill p lugged in and are o n,
the vehicle battery can sti ll be drained .•
Storage
General overview
There are numerous places to store i tems in your vehicle.
Glove compartment => page 87
Storage compartments in the front seats
& WARNING
• Alway s re mo ve object s from the instrument panel. Any item s
not put away could slide ar ound in side the vehicle while d riving or
wh en accelerating or when apply ing the brake s or wh en driving
around a co rner .
• When you ar e driving make sure that anything you may have
pla ced in the center console o r othe r st orage lo cation s cannot fall
out into the footwell s. In case of sudden braking you would not be
able to brake, depress the clutch or accelerate. •

_____________________________________________ A ~i..:_r ,::b :=:a ~g !...:: s'.:!y '..:s~ t~ e ~ m~ --
& WARNING (co ntinued )
• Always make sure that the side airbag can inflate without
interference:
-Never install se at covers or replacement upholstery over the
front seatbacks that have not been specifically approved by
Audi .
- Never use additional seat cushions that cover the areas
where the side airbags inflate .
- Damage to the original seat covers or to the seam in the area
of the side airbag module must always be repaired immedi­
ately by an authorized Audi dealer.
• The airbag sy stem can be activated only once. After an airbag
has inflated, it must be replaced by an authorized Audi dealer or
qualified technician who has the technical information , training
and special equipment necessary.
• The airbag sy st e m can be deployed only onc e. After an airbag
has been deployed, it must be replaced w ith new replacement
parts de signed and approved es pecially for your Audi model
version . Replacement of complete airbag systems or airbag
components must be performed by qualified workshops only.
Make sure that any airbag service action is entered in your Audi
Warranty
& Maintenance booklet under AIRBAG REPLACEMENT
RECORD.
• In accidents when an airbag is deployed, the vehicle battery
separates the alternator and the starter from the vehicle electrical
system for safety reason s with a pyrotechnic circuit interrupter.
- Work on the pyrotechnic circu it interrupter must only be
performed by a qualified dealer -risk of an a ccident!
- If the vehicle or the circu it interrupter is scrapped, all appli­
cable safety precautions must be followed .
Controls and equip­ ment Safety first Vehicle operation
'£' For the sake of the environment
U
ndeployed airbag modules and pretens io ners mig ht be classified as
Perch lorate Material -special handling may app ly, see
www.d ts c. ca.gov/ha za rdouswaste/pe rchlorate . W he n t he vehicle or
parts of the restraint system includi ng a irbag modules safety belts
w ith pretens io ners are s crappe d, all ap plic abl e laws and reg ulat ion s
must be observed. Your author ized Aud i dealer is familiar with these
req uir ements and we recommen d that yo u have yo ur dea le r pe rform
this service for you .•
Other things that can affect Advanced
Airbag performance
Chang ing the ve hicle's suspension system can change the way that
t he Adv anced Airbag System pe rforms in a crash . For example, using
tire-r im combinations not approved by Aud i, lower ing the veh icle,
c hang ing the st iffness o f the suspe nsio n, incl uding the s prings,
s u spension str uts, shoc k absorbe rs etc. can change the forces that
are meas ured by the airb ag sensors and sen t to the ele ctron ic con trol
uni t. Some suspension changes ca n, for examp le, increase the force
levels measu red by t he sensors and ma ke the airbag system dep loy in
crashes in which it wou ld not deploy if the changes had not bee n
made . Other kin ds of changes may re duce the force levels meas ured
by the senso rs and p revent the airbag from dep loyi ng when it should .
The sensors in the safety belt buckle for the d river and front
p assenger se at tell the e le ct ro nic co ntro l mo dule if the sa fe ty belt is
latc hed or not . If the safety be lt is be ing used, the fron t airbag w ill
dep loy at a s ligh tly hig her ra te o f ve hicl e decelerat io n t han if the
safety belt is not be ing used. T he refo re, in a part icular collis io n, it is
poss ible that an a irbag wi ll not deploy at a seating posit ion where the
safety belt is being used but wi ll inflate at the posi tion whe re the
safety belt is not bei ng used. It is important that not hing interfere
w ith the s afe ty be lt bu ckles so t hat th e sensor s can sen d the correct
information about safety belt use to the electronic contro l unit. ..
Vehicle care Do-it-yourself service Technical data

lffll __ C_ h_ e_c _k _i _ n _g ~ a_n _d_ f_il _l_in _ g _________________________________________ _
- 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. .,_

___________________________________________ A_ l::.. p _h _a_ b_ e_t _ic _a_ l_ in_ d _ e_x __ _
Auto Lock .. .. ... ..... ... ... ... .. .. .. 41
Auto Safety Hotline ... ... ... . .. ..... 185
Auto-Check Control .. ..... ... .... ... .. 26
Automatic belt retractor .......... ... 195
Automatic car wash See Washing ......... .... .. .... . 261
Automatic climate control . . . . . . . . . 88, 9S
Automatic driving light control ......... 62
Automatic power top ..... .. .. .. .... .. SO
Automatic Shift Lock (ASL) ... .. .. 150, 158
Automatic transmission 6-speed automatic transmission ... . 148
Automatic Shift Lock (ASL) .... 150, 158
Driving ...... ...... .. .. .. .. .. .. . 148
Dynamic shift program ... .... .. ... 151
Emergency release ............. .. . 154
Emergency release for selector lever
(mu ltitron ic®) ............... .. . 161
Fail-safe mode .............. 153, 161
Kick-down ...................... 151
Manual shift program ............. 152
multitronic ® ..................... 155
Selector lever ........... .. .. 149, 157
Shift buttons ....... .. .. .... 153, 160
Steering wheel with tiptronic ® . 153, 160
Automatic wipe/wash system .......... 69
Average speed .. ....... .... .. .. .. .. .. 22
Avoid damaging the vehicle .. .. .. .. .. . 251
Controls and equip­
ment Safety first
B
Battery
... .. ... ... ................. 291
Charging . .. .. .. .... .. .. ... ... .. . 293
Important warnings when work ing on the
battery ..... ........... ...... .. 292
Jump starting . ........... ........ 333
Low ... .. .. .. .... .... .. ......... 247
Replacing the battery .. .. .. .... ... 294
State of charge ..... .. ... ...... .. 247
Winter operation ..... ..... ....... 291
Working on the battery .... .... .... 292
Battery voltage .. ........... ...... .. . 34
Before driving .. ... .... .. .. .. .. ..... 177
Belt positioner .. .. .... .. ... ... ..... 194
Blended gasoline ................ ... 27 4
Body cavity sealing . ................. 267
Booster seats ... .. ...... .. ......... 230
Brake assist ..................... ... 245
Brake booster . ........ ... .......... 244
Brake fluid
Changing the brake fluid ........... 290
Checking the brake fluid level ..... .. 290
Reservoir .. .. .. .... .... ......... 290
What is the correct brake fluid level? . 290
What should I do if the brake fluid warning light comes on? . ... ... .......... 290
Brake system .. .. .. ..... .... ........ 290
Anti-lock brake system . .. .......... 16
Brake fluid ... .... ............... 290
Brake fluid specifications for refill and
replacement ................... 290
Brake light defective ....... .... ... . 34 Brake pads
.. .. .... ..... .... .... . 251
Electromechanical parking brake .... 110
General information .............. 243
How does moisture or road salt affect the
brakes? ... .... .............. .. 243
Malfunction .............. .... .. .. 28
Warning/indicator lights ....... .. .. 17
Worn brake pads symbol ........... 33
Braking guard
See Audi braking guard ............ 129
Break-in period ... .. .. .............. 250
Brake pads .. ...... ........... .. . 251
Tir es ... .. .. ................. .. . 250
Bulbs ................ .. .... .... .. . 331
C
California Proposition 65 Warning .. ... 281
Battery specific .................. 293
Capacities ......................... 342
Car care .. .... .............. ...... . 260
Interior ............ .. .. .. .. .. .. . 268
Plastic and vinyl .... ............. . 264
Weatherstrips ............ .. .. .. . 266
Care of exterior ... .... .. . .. .. .. .. .. . 260
Cargo area
See Loading the luggage compartment ..
183
Catalytic converter .. ..... ........... 251
Certification ......... .............. 346
Changing a flat tire .. ................ 320
Changing a wheel ...... ...... .... .. . 320
Changing engine oil ... .. .. ......... . 285
Vehicle operation Vehicle care Do-it-yourself service Technical data