2011 AUDI A5 COUPE battery replacement

(]] Tips
• The operation of the remote control key can be temporarily
disrupted by interference from transmitters in the vicinity of the
vehicle wo rking in the same frequency range (e.g. a cell phone, rad io
equipment) .
• 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 343 . •
Check Light in the master key
The check li ght in the master key provides inform ation
about different conditions.
!
lJl
Fig. 2 8 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
during 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 43. •
Master key battery replacement
..
Fig . 2 9 R em ote
m aste r ke y: Rem ovin g
th e m ech anic al ke y
Fig. 30 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. 29.
~
Vehicle care Do-it-yourselt service iTechnical data

Open ing and closing
- Pull the mechanical key ® out of the master key.
- Press the release button©=>
page 43, fig. 30 on the
battery holder and at the same time pull the battery
holder out of the master key in the di rec tion of the arrow.
- Install the new battery CR 2032 w ith 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 t he environ ­
me nt.
(I] Tips
T he replacement battery must be the same specification as the
orig inal. •
Removing the mechanical key
-Press the release button©=> fig. 31.
Fig. 31 Re mote
m aster key: Removi ng
t he mecha nica l 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 93.
• Lock and unlock the lockable rear seatback* ~ page 86.
• Lock and unlock the vehicle manually~ page 49 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. 3 2 I gnit ion
s wit ch with ignitio n
k ey
If you are unable to remove the ignitio n key , for examp le
because the vehicle batt ery is discharged, proceed as fo llows :
- Press the release button©=> fig. 32 for example with a
ba ll point pen and pull the mec hanica l key @ out of the
maste r key.
- Lock the vehicle using the mechanical key=>
page 49.
-Have the elect rical sys tem inspected by an authorized Audi
dealersh ip .•

______________________________________________ ___:.A:::::.:.: ir:....: b~ a~g !....= s:ly '..: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

___________________________________________ C_ h_e _c _k_ i_n ~g_ a_n_ d_ f_ i_ll _i_n _g __ _
Fast charging the battery (charging rate above 14 .8
Volts)
For technical reasons do not use a battery charge r that uses voltage
greater than 14.8 Volts to charge yo ur vehicle's battery.
& WARNING
Charging a battery can be dangerous.
• Always follow the ope rat ing instructions provided by the
battery charger manufacturer when charging your battery .
• Never charge a frozen battery. It ma y explode because of gas
trapped in the i ce . Allow a frozen battery to thaw out first .
• Do not reuse batteries which were frozen . The battery housing
may hav e cra cked and weakened when th e batter y froze.
• Charge the battery in a well ventilated area . Keep away from
open flame or electr ical spark . Do not smoke . Hydrogen gas gen er­
ated by the battery i s explosive.
• To reduce the danger of explo sion, n ever conne ct or dis connect
c harger cables while the charger is operating.
• Fast charging a battery is dangerous and should only be
attempted by a competent te chnician 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 fast charger as a booster to start the eng ine. This w ill seri­
ous ly damage sens itive elect ronic components, such as control units,
re lays, rad io, etc., as well as the battery charger. •
Safety first
Battery replacement
The ne w ba ttery must have the same spe cific ations and
dimensions as the original equi pment battery.
Inte lligent energy management in your veh icle is responsible for
dist ributing the ele ct ric a l ene rgy t hroughout yo ur veh icle
~ page 243. The intelligent energy management system will keep
t he eng ine ba ttery c ha rged better then vehicles wi thou t this system.
To make sure the additional e lectrical energy is available once again
after you h ave changed the ba tte ry, we re commend t hat yo u inst all
batter ies of the same type and ma nufacture only (the same as t hose
installe d at the time your ve hicle was delivere d). Specifications a re
listed on the battery housing . Your authorized Aud i dealer must code
the batte ry in the energy management system to enable you to use
the energy management f unctions co rrectly after rep laci ng the
battery.
If it is no t poss ibl e to use a batte ry of thi s ty pe, the new ba tte ry mus t
have the same capac ity , voltage (12 volts) , amperage , construction
and plug sea ling .
Whe n ins tal ling the ba ttery, make sure the ign it io n and a ll electr ica l
cons umers are turned off.
0 Note
Make s ure t he venti lation hose on the s ide of the battery is
co nnected, o the rwise fumes or battery acid can lea k out.
W For the sake of the environment
B ecau se of the p roblem of proper di sposal of a ba tte ry, we recom ­
mend your authorized Audi dealer change the battery for you.
B atteries con tain sulfuri c acid and lead and m ust always be dispose d
of properly in comp liance w it h all environmental regulations.
Dis pos ing o f vehi cle b atter ies im proper ly is ve ry dange ro u s to the
environment .•
Vehicle care Technical data

___________________________________________ A_ l::.. p _h _a_ b_ e_t _ic _a_ l_ in_ d _ e_x __ fflll
Audi drive select .. .. .. ...... .. .. . .. . 147
Adaptive dampers ................ 147
Description ............. .. ....... 147
Dynamic steer ing ... ....... ..... .. 147
Sett ing the driv ing mode . .. .. .. .. . 148
Audi Serv ice Repai r Manuals and Litera ture .
340
Auto Lock .. .. ... ..... ... ... ... .. .. .. 46
Auto Safety Hotline ... ... ... . .. ..... 179
Auto-Check Control .... .. ... ...... .. .. 31
Automatic belt retractor .......... .. . 185
Automatic car wash
See Washing ....... .. .... .. .... . 257
Automatic climate control
A/C mode .......... .... .. .... .. .
100
Automatic climate control plus ..... .. . 101
A/C mode .... .......... ...... .. . 107
See also Deluxe automa tic clima te cont rol
plus ..........................
101
Automatic climate control system . ...... 95
See also Deluxe automat ic climate contro l
95
Automatic driving light control ......... 58
Automatic Shift Lo ck (ASL) ......... .. .
153
Automatic transmission .............. 150
Automatic Shift Lock (ASL) ..... .... 153
Driving ...... ...... .. .. .. .. .... . 151
Dynamic shift p rogram . .. .. ... . .. . 154
Eme rgency release ......... .... .. . 156
Fail-safe mode . .. ................ 156
Kick -down ........ .. .... ... .. .. . 154
Manual shift program ..... .... .... 155
Selector lever ............ ... ..... 152
Controls and equip­
ment Safety first
Shift buttons
... ...... .. .... ..... 156
Steering wheel with tiptronic ...... . 156
Automatic wipe/wash system .......... 65
Average speed ......... .. .. .......... 24
Avoid damaging the vehicle .... .... ... 247
B
Battery . .. .. .. .. .... ...... ......... 285
Bat tery location inside the luggage
compartment . ........ .... .....
286
Charging ........................ 288
Important warnings when working on the
battery ... .. .. ... ..... .... ... ..
286
Jump start ing . ........... ...... .. 328
Low ... .. .. .. .... .... ........... 243
Replacing the battery .. .. .. ....... 289
State of charge ..... .............
243
Winter operation ... ..... ......... 285
Work ing on the battery .... ... .. .. .
286
Battery voltage .. .... .... .. .. .... ... . 39
Befo re driving ..... .... .. .. .. .. .... .
171
Blended gasoline .. ......... ...... .. 269
Body cavity sealing ..... ....... ...... 262
Booster seats ... .. .... .. ........... 223
Brake assist ... .. ........... ........ 241
Brake booster ... .. ... ... .. ......... 240
Brake fluid
Changing the brake fluid ...........
285
Checking the brake fluid level ....... 284
Reservoir .. .. .. ...... .. .... ..... 284
What is the correct brake fluid level? . 284
What should I do if the brake fluid warning
light comes on? ... .. .. .. ........
284
Brake system . .... .. .. ... .... ... ... . 284
Anti-lock brake system .......... ... 17
Brake fluid .. ...... ............. . 284
Brake fluid specificat ions for refill and
replacement . .... ............. .
285
Brake light defective .... ... .. .. .. .. 39
Brake pads .. .. .... ..... .... .... .
246
Electromechanical parking brake . ... 116
General information ............ .. 239
How does moisture or road salt affect the
brakes? ... .... .. ............. . 239
Malfunction .............. ...... .. 33
Warning/indicator lights ... .. .. .. ..
18
Worn brake pads symbol ........... 38
Braking guard
See Audi braking guard .......... .. 135
Break-in period . .. .. .. .... .......... 246
Brake pads . ... ................ .. 246
Tir es ... ........................ 246
Bulbs . ................ ... .. .. .. ... 327
C
California Proposition 65 Warning .. ... 276
Battery specific .. .. .... ... .... ... 288
Capacities . ......... ... . .... .. .. .. . 339
Car care ... ................ ...... .. 256
Interior ............ .. .... .... .. .
263
Plastic and vinyl ................ .. 260
Weatherstrips ...... ...... .. .. .. . 261
Care of exterior ...... .. .. .. .. .. .. ... 256
Vehicle operation Vehicle care Do-it-yourself service Technical data

-Alphabetical inde x lffi'f ___,__ ______________ _
Heating
Deluxe automatic climate control plus
101
Heavy clothing and safety belts . ... ... . 184
High beam ................ ...... .. . 62
Warning/indicator lights . .......... 17
H igh vo ltage warning labe l ......... .. 336
HomeL ink® un iversal remote control . .. 166
Hood
Opening ................ ...... ..
274
Release lever ............ .. .... .. 2 7 4
Horn ................. .. .. .. .. .... .. 9
How are child restraint system anchors related to chi ld safety ..... .............
229
How many a irbags does my vehicle have? .. ..
197
How often should I check my tire pressures? .
298
How safety belt pretensioners work ... . 188
Indicator lights ... .......... ..... .. .. 14
Airbag system .......... .. ... 201, 202
PASSENGER AIR BAG OFF .......... 202
Infant seats ....... ... .. .... ....... 221
Ins ide rear view mirror ........ .. .. .. .. 68
Installing child safety seats
Safety belts ............... ... .. .
225
Installing the upper tether strap on the
anchorage ... .... ... ..... .... ..
233
Instrument lighting .......... .. .. .. .. 61
Instruments and controls ..... .. .... .. 10
General illustration .............. ... 9
Interior lights Dimming . .... ... .. .. .. .. .. .. .. ..
63
Front .. ................. .. .. .. .. 63
Rear ... ................. .. .. .. .. 64
Interval wiping . .. .. ............... .. 65
Rain sensor ......................
65
Hydroplaning . .. ............ ....... 302 J
I Jumper cables .. .. .................. 329
Jump-sta rting ................ .... .. 328
Ignition key ........ ............. ... 112
Emergency unlocking .. ....... ..... 44 K
Ignition lock .. .... .. .. .... ......... 112
Malfunction ............. ...... 36, 40 Key ........ ...... ... .. .... ........ 42
Immobilizer . ... ..... ............... 42 Battery replacement ............... 43
Important things to do before driving .. 171
Improperly worn safety belts ......... 188
Indicato r light
Dynamic steer ing .......... ....
15, 37
Key replacement ..... ............. 42
Master key with remote control .. .. .. 42
Mechanica l key ................. .. 44
Kick-down tiptronic ....... .............. ...
154
Knee airbags .. .... .... ...... ... .. .. 206
Description .. .. .. ............... 206
How they work .............. ... . 207
Important safety instructions ...... 208
L
LATCH 229
Description .. ...... ............. 230
Insta lling a child restraint ....... .. 231
Location . ........... .. .... .... .. 230
Mounting and releasing the anchorage
hook .. ...... .. .. ..... .. .. .. ..
231
Leather .................... ... .. .. 264
Cleaning ........... .. .... .... .. 265
Lifting jack .......... ... . .. .... .. .. 319
Lifting vehicle ...................... 333
Light
Coming home ............ ... ... ..
60
Daytime running lights ............. 60
Driving light control ............... 58
Exterior lighting .. .. .... ......... . 60
Leaving home ....... .. .. .. .... .. . 60
Switching on and off ....... ... .. .. . 58
Light sensor ................ ... .. .. . 58
Light sensor defective ...... .. .. ... ... 38
Lighting ..... .. .. .... .............. 58
Lights
Emergency flashers . . . . . . . . . . . . . . .
62
High beam ...... . .. .............. 62
High beam warning/indicator light ... 17
Turn signals .................... .. 62
Xenon headlights . .. .... .......... 61