2011 AUDI A5 CABRIOLET battery replacement

(]] Tips
• The operation of the remote control key can be temporarily
d isrupted by interfe rence from transmitters in the v icinity of the
vehicle wo rking in the same frequency range (e.g. a cell phone, rad io
equipmen t) .
• If you open the dr ive r's doo r with the key left in the ignit ion lo ck,
a ch ime will sound . This is your reminder to remove the key and lock
the doo r.
• For security reasons, replacement keys are only available from
Audi dealers.
• For Declaration of Complia nce to United States FCC and Industry
Canada regulations=>
page 346 . •
Check Light in the master key
The check li ght in the master key provides inform ation
about different conditions.
!
lJl
Fig. 2 6 Che ck lig ht in
t h e maste r key
The check light comes on brief ly once when a button is p ressed, and
du ring an " inquiry" by the convenience key system.
Con tro ls a nd e quip ­
m en t Vehicle
OP-eration
Opening and closing
If the check light does not come o n, the batte ry is dead and has to be
rep laced. In addi tion , when the batte ry is dead the • sym bol appears
in the instrument cluster d isp lay as well as the message :
Please change ke y batte ry
Battery replacement => page 39. •
Master key battery replacement
..
Fig . 2 7 R em ote
m aste r ke y: Rem ovin g
th e m ech anic al ke y
Fig. 28 Remot e
m as ter k ey: Rem oving
t he batte ry hol der
We recommend having the battery changed by an authorized
Audi dealer . However , if you wish to rep lace the dead battery
yourse lf, proceed as follows :
- P ress the release button©=> fig. 27.
~
Vehicle care Do-it-yourselt service iTechnical data

Opening and closing
-Pull the mechanical key ® out of the master key.
- Press the release button©=>
page 39, fig. 28 on the
battery 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 th e environ­
ment.
(I] Tips
Th e replacement battery must be the same specification as the
original. •
Removing the mechanical key
-Press the release button©=> fig. 29.
Fig. 29 Remote
master key: Removing
the mechanical key
-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 45 if this should not
be possible 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. 30 Ignition
switch with ignition
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. 30 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 45.
-Have the electrical system inspected by an authorized Audi
dealership. •

-Airbag system ------=-~-----------------------------------
& WARNING (conti nued)
• Always make sure that the side a irbag can inflate without
interference :
- Never in stall seat covers or replacement uphol stery over the
front seatbacks that have not been specifically approved by
Audi .
- Never use addit ional se at cushions that cover the areas
where the side ai rbags inflate.
- Damage to the or iginal seat covers or to the seam in the area
of the side airbag module must always be repaired immedi­
ately by an author ized Audi dealer.
• The airbag system can be activated only on ce. After an airbag
has inflated, it must be replaced by an authorized Audi dealer or
qualified technician who has the techni cal information, t raining
and special equipment necessary.
• The airbag sy stem can be deploy ed only once. After an airbag
has been dep loyed , it must be replaced with new replacement
parts designed and approved e specially for your Audi model
version. Replacement of complete airbag systems or a irbag
components must be performed by qualified workshops onl y.
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 interrupte r.
- Work on the pyrotechnic circuit interrupter must only be
performed by a qualified dealer -risk of an accident!
- If the vehicle or the circuit interrupter is sc rapped , all appli ­
cable safety precautions must be followed.
W For the sake of the environment
Un deployed ai rbag modu les and p retensione rs might be class ified as
Perch lorate Materia l -special handling may ap ply, see
www.dts c.ca.gov/ha za rdouswas te/pe rchlorate. When the vehicle or
parts of the restraint system includ ing a irbag modu les safety belts
w it h pretensioners are s crapped, all appli cable laws and regula tions
must be observed. Your author ized Aud i dealer is familiar with these
req uiremen ts and we recommen d that you have your dealer perfo rm
this serv ice for you. •
Other things that can affect Advanced
Airbag performance
Chang ing the vehicle's suspension system can change the way that
t h e Advan ced Airbag System pe rforms in a cr ash . For e xamp le, usi ng
tire-rim combinations not app roved by Audi, lowering the vehicle,
c hang ing the stiffness o f th e suspension, incl uding the sp rings,
suspension struts, shock absorbers etc. can change the forces that
are meas ure d by the a irba g sensors and sent to the ele ct ronic contro l
unit . Some suspension changes can, fo r exam ple, increase the force
levels measured by the senso rs and make the airbag system deploy in
crashes in which i t would not deploy if the changes had no t been
ma de . Other kinds of changes may reduce the force levels meas ured
by the sensors and p revent the airbag from dep loying when it should.
T he sensors in the safety belt b uckle for the drive r and front
p as senge r se at tell the e lectroni c cont rol mo dule if the sa fe ty belt is
latched or not . If the safety belt is being used, t he front a irbag w ill
dep loy a t a s lightly h igher r ate o f vehicle decele ration t han if t he
safety belt is not be ing used . Therefo re, in a par ticular collis io n, it is
possible that an a irba g w ill not dep loy at a seating position where the
safety belt is being used but w ill inflate at the posit ion where the
safety belt is not be ing use d. It is im portant that nothing interfere
w it h t he safety belt bu ckles so that the sensors can se nd the co rrect
info rmation about safety be lt use to the electronic contro l unit.
~

lffll __ C_ h_ e_c _k _i _ n _g ~ a_n _d_ f_il _l_in _ g _________________________________________ _
Battery charging (Maximum charging rate of 30
amps/14.8 Volt )
When charging at /ow voltages (e.g . w ith a trickle charger ), th e
battery cab les do not have to be disconnected first. The batte ry caps
should
not be opened when cha 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 te r t han 14 .8 Vol ts to ch arge yo ur vehicle's ba tte 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 be cause of g as
trapped in the ice . Allow a frozen battery to thaw out first.
• Do not reu se batteries which were frozen . The battery h ousing
may have cracked and weakened when the battery froze.
• Charge the battery in a well ventilated area. Keep away from
open flame o r elect rical spark. Do not smoke. Hydrogen gas gener ­
ated by the battery i s explosive.
• To reduce the danger of e xplosion , never connect or disconnect
c harger cable s while the charger is operating.
• Fast charg ing 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 wa shed
off with a so lution of warm water and baking soda to neutralize
the acid.
0 Note
N ever use a fast cha rger as a booster to s tart the eng ine. This w ill seri­
ously damage sensitive e lectronic components , such as control units,
re lays, ra dio, etc., as well as t he ba ttery cha rger. •
Battery replacement
The new battery must have the same specifications and
dim ensions as the original equipment b atte ry.
Inte lligent e nergy ma nagement in yo ur vehicle is responsib le for
distr ibuting the elect rical energy throughout your vehicle
~ page 24 7. The intelligent energy management sys tem will keep
the eng ine battery charged better then vehicles without this system.
T o m ake s ure the addi tional e lectr ic al energy is available o nce aga in
after you have changed the battery, we recommend that you install
b atter ies of the same type and manuf actur e only ( the same as t hose
installed at the t ime you r vehi cle was delive red) . Specifications are
listed on t he batte ry ho using. Yo ur authorized A udi dealer m ust code
the batte ry in the energy management system to enable yo u to use
the energy managemen t fu nct ions co rrectly after rep lacing the
battery .
If it is not poss ible to use a battery of this type, the new battery must
have the same capa city, volt age (1 2 volts), amperage, const ru ct ion
and plug sealing .
W hen installing t he ba ttery, ma ke s ure t he ign it ion and all electrica l
cons umers are turned off .
0 Note
Make sure the vent ilatio n hose o n the side of t he battery is
connected, otherwise fumes or battery acid can lea k out.

___________________________________________ A_ l::.. p _h _a_ b_ e_t _ic _a_ l_ in_ d _ e_x __ _
Auto Lock .. .. ... ..... ... ... ... .. .. .. 42 B
Auto Safety Hotline ... ... ... . .. ..... 185
Auto-Check Control .. ..... ... .... ... .. 27
Automatic belt retractor .......... ... 194
Automatic car wash
See Washing ......... .... .. .... . 261
Automatic climate control . . . . . . . . . 88, 9S
Automatic driving light control ......... 63
Automatic power top ..... .. .. .. .... .. 51
Automatic Shift Lock (ASL) ... .. .. 150, 157
Automatic transmission Automatic Shift Lock (ASL) .... 150, 157
automatic transmission ........ ... 148
Driving ...... ...... .. .. .. .. .. .. . 148
Dynamic shift program ... .... .. ... 151
Emergency release ............. .. . 154
Emergency release for selector lever
(mu ltitron ic®) ............... .. . 161
Fail-safe mode .............. 153, 160
Kick-down ...................... 151
Manual shift program ............. 152
multitronic ® ..................... 154
Selector lever ........... .. .. 149, 156
Shift buttons ....... .. .. .... 153, 160
Steering wheel with tiptronic ® . 153, 160
Automatic wipe/wash system .......... 69
Average speed .. ....... .... .. .. .. .. .. 21
Avoid damaging the vehicle .. .. .. .. .. . 251 Battery
... .. ... ... ................. 290
Charging . .. .. .. .... .. .. ... ... .. . 293
Important warnings when work ing on the
battery ..... ........... ...... .. 291
Jump starting . ........... ........ 333
Low ... .. .. .. .... .... .. ......... 247
Replacing the battery .. .. .. .... ... 294
State of charge ..... .. ... ...... .. 247
Winter operation ..... ..... ....... 290
Working on the battery .... .... .... 291
Battery voltage .. ........... ...... .. . 36
Before driving .. ... .... .. .. .. .. ..... 177
Belt positioner .. .. .... .. ... ... ..... 193
Blended gasoline ................ ... 27 4
Body cavity sealing . ................. 267
Booster seats ... .. ...... .. ......... 229
Brake assist ..................... ... 245
Brake booster . ........ ... .......... 244
Brake fluid
Changing the brake fluid ........... 290
Checking the brake fluid level ..... .. 289
Reservoir .. .. .. .... .... ......... 289
What is the correct brake fluid level? . 289
What should I do if the brake fluid warning light comes on? . ... ... .......... 289
Brake system .. .. .. ..... .... ........ 289
Anti-lock brake system . .. .......... 15
Brake fluid ... .... ............... 289
Brake fluid specifications for refill and
replacement ................... 290
Brake light defective ....... .... ... . 35 Brake pads
.. .. .... ..... .... .... . 251
Electromechanical parking brake .... 110
General information .............. 243
How does moisture or road salt affect the
brakes? ... .... .............. .. 243
Malfunction .............. .... .. .. 30
Warning/indicator lights ....... .. .. 17
Worn brake pads symbol ........... 35
Braking guard
See Audi braking guard ............ 129
Break-in period ... .. .. .............. 250
Brake pads .. ...... ........... .. . 251
Tir es ... .. .. ................. .. . 250
Bulbs ................ .. .... .... .. . 332
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
Controls and equip­
ment Safety first Vehicle operation
Vehicle care Do-it-yourself service Technical data

-Alphabetical inde x _ ___,_ ______ .::..:....=.:..:..__ __________________________ _
Ignition lock .. .. .. .. .. .. ... ........ 106
Malfunction .............. ... .. 32, 37
Immobilizer ... ................. . 11, 38
Important things to do before driving .. 177
Improperly worn safety belts ....... .. 196
Indicator lights ............. ...... ... 12
Airbag system ...... ..... .... 210,211
Dynamic steering .............. 13, 34
PASSENGER AIR BAG OFF .......... 211
Infant seats .... .... ...... ......... 227
Inside rear view mirror ................ 72
Insta lling child safety seats
Safety belts .................. ... 231
Instrument lighting .. .. .......... .... 66
Instruments and controls .............. 8 General illustration ............. .. .. 7
Interior lights ... .. .. .. ... ..... ...... 68
Rear .... .. .. .................... 69
Interval wip ing .. ............ ........ 69
Rain sensor ..... ....... ..... .. .. . 69
J
Jumper cables ...................... 334
Jump-starting .... .. .... .. .. .. .. .. .. 333
K
Key . ..................... .. .... .. . 38
Battery replacement ............... 39
Key replacement .... .. .. .. .. .. .. .. 38
Master key with remote control ...... 38
Mechanical key ..... ... ........... 40 Kick-down
multitronic ® ................ ... . 1S8
t.
t . ® rp ronic ................ ... .. . 151
Knee airbags ................ .. .... . 215
Description . .. ................. . 215
How they work ......... .. .. .. .. . 216
Important safety instructions ...... 217
L
Lane assist
Activating and deactivating ........ 132
Description . .................. .. 132
Indicator in the instrument cluster display
133
Instrument cluster indicator light ... 132
Notes on instrumen t cluster display . 132
steering wheel vibration . .......... 135
warning time .. ... ... ... .. .. .. ... 135
LATCH ............ .... ..... .. .... . 234
Description ... ................. . 236
Installing a child restraint .. .. .... . 237
Location ....... ...... .... .. ..... 235
Mounting and releasing the anchorage hook .............. .... ....... 237
Leather . .. .. .. .. ..... ...... .. ... .. 269
Cleaning . .......... ... .. ... ... . 270
Lifting jack ......... .... .... ....... 323
Lifting vehicle .... ........... .. .. .. . 338
Light sensor ............ .... .. ...... 63
Light senso r defective ............. ... 35
Lighting .. .. .. .... ....... .... .... .. 63 Lights
Com ing home .......... .... ...... 65
Daytime running lights ............. 65
Dr iving light control . .......... ... . 63
Emergency flashers .. .. .. .. .. .. .. . 67
Exterior lighting .. .. .... ......... . 65
H igh beam ... .. .. .. .............. 67
High beam warning/indicator light ... 15
Leaving home ........ ... .. .... ... 65
Switching on and off .............. . 63
Turn signals .. .. .... ............. . 67
Xenon headlights . .. ............. . 66
Loading the luggage compartment 183
Locking Power locking switch . . . . . . . . . . . . . . 46
Rear lid/trunk lid ................. 4 7
Remote control key . . . . . . . . . . . . . . . . 43
Us ing the mechanical key . .......... 45
Low beams . . . . . . . . . . . . . . . . . . . . . . . . . 63
Lower unive rsal ancho rage bars (Canada) ...
234
Lower universal anchorages (Canada) . .. 234
Luggage Stowing ............ .. .. .. .... .. 183
Luggage compartment ............... 83
Increasing the s ize .. .......... .... 84
Loading ........... .. . ... ... .. ... 83
Tie-downs . . . . . . . . . . . . . . . . . . . . . . . 84
See also Loading the luggage
compartment . .. .. ......... .... 183
See also Luggage compartment .... . 83
Luggage compartment lid
Emergency unlocking ....... .. .. .. . 48

Alphabetical index -________________ fNi'II
M
Maintenance ................... .... 343
Malfunction Indicator Lamp (MIL) ... 15, 25
Master key ........ .... .. .. .. ... ... .. 39
Battery replacement .. .. .. .. ....... 39
Check light ............... .. .. .. .. 39
Mechanical key ........... ... ... .... . 40
Memory for driver's seat ............... 80
Recalling settings .. ........... .. .. 81
Storing settings ............... .... 81
Mileage Average .... ........... ...... .... 21
Instantaneous .................... 21
Mirrors Act ivat ing the dig ita l compass ... .. .. 75
Adjusting the anti-glare .... .... .. .. 72
Au tomatic dimming for the outside
mirrors ........... .... .. .. .. .. .. 74
Automatically dimming inside mirror . 72
Ins ide rearview mirror .............. 72
Interior mirror ......... .. .... .... . 72
Manual glare d imm ing .. ....... .. .. 72
Outside mirrors .. .. .... ........... 73
Monitoring the Advanced Airbag System 210
mu ltitronic ® ................ .. .. .. . 154
Automatic Shift Lock (ASL) ......... 157
Driving the mu ltitronic ® .......... . 155
Dynamic shift program ... .. .. .. .. . 158
Fail-safe mode ... ................ 160
Kick-down ......... ...... .. .... . 158
Manual shift program ..... .... .... 159
Selector lever .... ... ..... ... .. .. . 156
Controls and equip­
ment Safety first
Steering wheel with tiptronic
® .... .. 160 p
tiptron ic . .................. ..... 159
N
Natural leather .................. ... 269
New tires and whee ls ................ 307
NHTSA Contact ing ... .. .... .. .. ......... 185
Number of seats . ............ ..... .. 189
0
Occupant seating posi tions . .... .. .. .. 178
Octane rating .... ... .. .... ......... 274
Odometer .. .. ................ ... ... 11
Oil
See Engine oil ........... .. . 282, 284
Oil consumption . .. ................. 284
On-Board Diagnostic System (OBD) Data Link Connector (DLC) ......... . 2S
Electronic speed limiter ........... . 26
Malfunction Indicator Lamp (MIL) .... 25
Open door or rear lid warning ..... .. .. . 20
Operate your veh icle economically and mini-
mize pollution ............ ...... 2S2
Optional equipment Marked with an asterisk ......... .... 5
Other equipment (effic iency program) ... 24
Ou tside mirrors ............. .. .. .. .. . 73
Outside temperature display ........... 19
Owner 's manual
How the Owner's Manual is organized .. 5 Paint
Touch-up . .. .. .. .. ..... ..... ... . 265
Paint No .............. ...... .... ... 340
Park assist ............ .... .. .. .. .. . 162
Adjusting the chimes .. ..... .... .. . 163
rear ... ......................... 162
rear, with rear-view camera ........ 164
Parking . .. .. .. ................. .. . 111
Automatic transmission ........... 148
multitron ic® . ............ .. .. .. . 155
Parking brake .. .. .. .. ..... ..... ... . 110
See also Electromechanical park ing brake
110
Parking system
rear, with rear-view camera ..... .. . 164
Parking system (rear, with rear-view camera) 164
Acoustic parking system tips ..... .. 170
Parking mode 1 . ... ............ .. 167
Parking mode 2 . ... ............ .. 168
Safety precautions ................ 16S
Switching on/off ... ............. . 166
Switching rear-view came ra on/off . . 169
Parts replacement .. .. .... .......... 345
PASSENGER AIR BAG OFF light . .. .. ... 211
Passive safety system ..... .... .. .. ... 176
Pedals .. .. .... ................... . 182
Physical principles of a frontal collision . 190
Polishing .................. ..... ... 264
Pollen filter . . . . . . . . . . . . . . . . . . . . . 88, 9S
Pollutant fi lter . . . . . . . . . . . . . . . . . . 88, 9S
Vehicle operation Vehicle care Do-it-yourself service Technical data