2017 AUDI A5 CABRIOLET battery replacement

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-Do not remove the key from the ignition
lock until the vehicle has come to a com­
plete stop . Otherwise the steer ing column
lock could suddenly engage -causing the
risk of an accident .
(D Tips
-The operation of the remote control key can
be temporarily d isrupted by interference
from transmitters in the vicinity of the vehi­
cle work ing in the same frequency range
(e .g. a cell phone, radio equipment).
- For security reasons, replacement keys are
only available from authorized Aud i dea ler .
- For Declaration of Compliance to Un ited
States FCC and Industry Canada regulations
<::;> page 2 49.
Removing the mechanical key
Fig. 17 Remote master key: removing t he m ec hani ca l key
.,. Press the release button @o fig. 17.
.,. Pull the mechan ical key ® out of the master
key.
Using the mechan ical key, you can :
- lock and unlock* the glove compartment on the
passenger's side
c> page 63 .
-lock and unlock the vehicle manually
opage 32 if this should not be poss ible with
the master key.
- use the ignition key emergency release
opage 30.
Open ing and closing
Check light and battery in the master key
Fig. 18 Remote master key: re moving the bat tery holder
Check light in the master key
The check light@o fig. 18 in the master key
provides information about d ifferent conditions .
.,. The check light turns 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
Ill indicator light
appears in the instr ument cluster display as
well as the message
Please change key bat­
tery .
Master key battery replacement
.,. Remove the mechanical key o page 29 .
.,. Press the re lease button ® o fig. 18on the bat­
t ery holder and at the same time pull the ba t­
tery holder out of the master key in the d irec ­
tion of the arrow .
.,. Insta ll the new battery CR 2032 with the"+"
sign facing down .
.,. Push the battery holder carefu lly into the mas­
ter key .
.,. Install the mechanical key.
@) For the sake of the environment
Dispose of dead batteries properly so as not
to pollute the environment.
@ Tips
The replacement battery must be the same
specificat ion as the original.
29

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(D Tips
If the weight-sensing mat in the front passen­
ger seat detects an empty seat, the front air­
bag on the passenger side will be turned off,
and
P ASS ENGER AIR B AG OFF will stay on.
Repair , care and disposal of the airbags
Parts of the a irbag system are installed at many
d ifferent p laces on your Aud i. Installing, remov­
ing, servicing o r repa iring a part in an area of the
vehicle can damage a pa rt of an airbag system
and prevent that system from working properly in a co llision.
There are some importa nt things you have to
know to make sure that the effectiveness of the
system w ill not be impaired and that discarded
components do not cause injury or pollute the
environment.
A WARNING
Improper care, serv icing and repair proce­
dures can increase the r isk of personal injury
and death by preventing an airbag from de­
ploying when needed or deploying an airbag
unexpectedly :
-
-Never cover, obstruct, or change the steer­
ing wheel horn pad or a irbag cover or the in ­
strument panel or mod ify them in any way .
- Never attach any objects such as cupholders
or telephone mountings to the surfaces cov­
er ing the airbag units .
- For cleaning the horn pad or instrument panel, use only a soft, dry cloth or one mois­
tened with plain water. Solvents or cleaners
cou ld damage the a irbag cover or change
the stiffness or strength of the mater ial so
that the airbag cannot dep loy and protect
properly.
- Never repair, adjust, or change any parts of
the airbag system.
- All work on the stee ring wheel, instr ument
pane l, front seats or electrical system (in­
cluding the installation of audio equipment,
cellu lar telephones and CB radios, etc .)
must be performed by a qualified technician
Airb ag sys tem
who has the training and special equ ipment
necessary.
- For any wo rk on the airbag system, we
strong ly recommend that you see your au­
thorized Audi dealer or qualified workshop .
- Never modify the front bumper or parts of
the vehicle body.
- Always make sure that the side a irbag can
inflate without interference:
- Never install seat covers or replacement
upholstery ove r the front seatbacks that
have not been specifica lly approved by
Audi .
- Never use addi tional seat cushions that
cove r the areas where the side airbags in­
flate.
- Damage to the orig inal seat cove rs or to
the seam in the area of the s ide airbag
module must a lways be repaired immedi­
ate ly by an authorized Aud i dealer.
- The airbag system can be activated only
once . A fter an airbag has inflated, it must
be replaced by an authorized Audi dealer or
qualified technic ian who has the technical
information, t raining and spec ial equ ipment
necessary.
- The airbag system can be deployed only
once . After an airbag has been deployed, it
must be replaced with new rep lacement
parts des igned and approved especially for
your Aud i model version. Replacement of
comp lete airbag systems or airbag compo­
nents must be performed by qualified work­
shops only. Ma ke sure that any airbag serv­
ice act ion is en tered in your Aud i Wa rranty
& Maintenance booklet under AIRBAG RE ­
PLACEMENT RECORD.
- In accidents when an airbag is dep loyed, the
vehicle battery separates the alternator and
the starter from the veh icle electrical sys­
tem for safety reasons w ith a pyrotechnic
circu it interrupter.
- Wo rk on the pyrotechnic c ircuit inte rrupt­
er must on ly be performed by a qu alified
dealer -risk of an acc ident!
- If the vehicle or the circuit interr upter is
scrapped, all applicable safe ty p recautions
must be followed .
143

Check ing and F illing
CJ) Note
Never use a fast charger as a booster to start
the engine . This will serio us ly damage sensi­
tive electronic components, such as control
un its, relays, radio, etc., as well as the battery
charger .
Battery replacement
The new ba ttery mu st have the same specifica­
tions and dimensions as the original equipmen t
battery .
Intelligent energy management in your vehicle is
responsible for dist ributing the electrical energy
throughout your vehicle¢
page 173. The inte lli­
gent ene rgy ma nagement system wi ll keep the
eng ine batte ry charged better the n ve hicles w ith­
ou t th is system . To make su re the addit io nal
e lec trica l energy is avail ab le on ce again after you
h a ve changed the battery, we recommend t hat
you insta ll batteries o f the same type an d manu­
facture on ly (t he same as those insta lled at the
time your veh icle was delive red). Spec ificat ions
are listed on the battery housing. Your author­
ized Audi dealer must code the battery in the en­
ergy management system to enab le you to use
the energy manageme nt functions correctly after
replacing the battery .
If it is not possible to use a battery of th is type,
the new battery must have the same capacity ,
voltage (12-volts) , ampe rage, construct ion and
p lug sealing.
When insta lling the battery, make sure the igni­
tion and all electrical consumers are tur ned off .
@ Note
Make sure the ventilation hose on the side of
the batte ry is connected, othe rw ise fumes or
battery acid can lea k out.
@ For the sake of the environment
Because of the prob lem of proper disposal of
a battery, we recommend your author ized
Audi dea le r change the battery fo r you. Bat­
t er ies con ta in su lf ur ic ac id a nd lead a nd must
always be disposed of prop erly i n comp lianc e
206
with a ll environmenta l re gu lations . Disposing
of veh icle batteries im properly is very danger­
ous to t he environment.
Windshield/headlight*
washer container
Fig. 177 En gin e compar tment: Cove r on the w inds hield
a n d head lig ht* was he r flu id conta iner
The washer fluid co nta iner is marked with the
symbol
Q on its cap ~ fig. 177, ¢ page 195,
fig. 1 71.
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.. Before you check anythi ng i n the engine com ­
partment,
always read and heed all WARN­
INGS ¢ .& in Working in the engine compart­
ment on page 193.
.. Lift the fi ller cap to ngue to add w ashe r fl uid .
You c an f ill the containe r to t he top .
.. Press the ca p back on to the filler neck a fte r fill -
ing the contai ner.
Yo u c an find the reservo ir
capacity in t he table in
~page 244.
Clean water should be used when filling up . If
possible, use soft wate r to preve nt scaling on the
w ashe r jets. Alw ays add a glass cleane r solu tion
(wi th fros t protection in the win ter) .
@ Note
Do n ot mix engi ne coolan t antifree ze or any
o the r ad ditive s t o fill u p the wi ndshi eld wash­
er reservo ir.

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Generator Wa rni ng/indicator lig hts . . . . . . . . . . . . . . . 1 4
Glossa ry of tire and load ing term inology .. 209
Glove compartment . . . . . . . . . . . . . . . . . . . . 63
Valet parking . . . . . . . . . . . . . . . . . . . . . . . . 36
G PS controlled clock . . . . . . . . . . . . . . . . . . . . 1 0
Gross Vehicle Weight Rat ing (GVWR) . . . . . 24 3
H
Head lights
Clean ing . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Headlights Cleaning system . . . . . . . . . . . . . . . . . . . . . . 53
Defective . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
H eadlig ht range control . . . . . . . . . . . . . . . 19
L eft hand dr ive, right hand dr ive . . . . . . . . . 50
T rave l mode . . . . . . . . . . . . . . . . . . . . . . . . . 50
Headlight washe r reservoir . . . . . . . . . . . . . 206
H ea d restra ints . . . . . . . . . . . . . . . . . . . . . . . 114
Ad justing .. .. .. ... . .... ... .. .. .. 60, 1 14
H eated
exte rior m irro rs . . . . . . . . . . . . . . . . . . . . . . 5 1
rear w indow . . . . . . . . . . . . . . . . . . . . . . . . . 68
se ats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
windshie ld washer spray noz zles . . . . . . . . 53
H eating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Heavy clothing and safety belts . . . . . . . . . . 124
H igh be am . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
H igh voltage war ning label . . . . . . . . . . . . . 243
H ill descent contro l . . . . . . . . . . . . . . . . . . . . 84
H omelink (garage door ope ne r) . . . . . . . . . . 36
Hood Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Re lease lever . . . . . . . . . . . . . . . . . . . . . . . 193
H orn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
H ow are child res tra int sys tem anchors re lat -
ed to ch ild safety . . . . . . . . . . . . . . . . . . . . . 163
H ow many airbags does my vehicle have? . . 136
H ow safety belt pretensioners work
128
I
Ignition
switch ing on/off . . . . . . . . . . . . . . . . . . . . . 71
I gnition key
E me rgency un loc king. . . . . . . . . . . . . . . . . . 30
Index
Ig nition loc k . . . . . . . . . . . . . . . . . . . . . . . . . . 71
I n dicator light . . . . . . . . . . . . . . . . . . . . . . . 16
Malfunction . . . . . . . . . . . . . . . . . . . . . . . . . 20
Imbalance (whee ls) . . . . . . . . . . . . . . . . . . . 215
Immobilize r . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Importantth ingstodobefo redriv ing . ... 111
Imprope rly worn safety belts . . . . . . . . . . . 128
Ind icator lights . . . . . . . . . . . . . . . . . . . . . . . . 11
Airbag system . . . . . . . . . . . . . . . . . . . . . . 140
Dynam ic steeri ng . . . . . . . . . . . . . . . . . . . . 171
PASS ENG ER AIR BAG OFF . . . . . . . . . . . . . 140
also refer to War ning/ indicato r lights . . . . 11
Infant seats . . . . . . . . . . . . . . . . . . . . . . . . . 155
Inf lation press ure (t i res) . . . . . . . . . . . . . . . 217
Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Adjust ing the light ing . . . . . . . . . . . . . . . . . 51
Instruments and contro ls
Genera l illustration . . . . . . . . . . . . . . . . . . . . 6
Inte rior ligh ts
F ront ... .. .. .. .. ... .. .. ..... ... .. .. . 51
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Inte rmit ten t (windsh ie ld w ipers) 53
]
Jump-starting 238
Jumper cables . . . . . . . . . . . . . . . . . . . . . . . . 239
K
Key... ... .. .. .. .. .. ... .. ..... ... .. .. . 28
Battery replacement . . . . . . . . . . . . . . . . . . 29
Check lig ht . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Emergency key . . . . . . . . . . . . . . . . . . . . 28, 72
Ig nit ion/eng ine on/off . . . . . . . . . . . . . . . . 71
Key replacement . . . . . . . . . . . . . . . . . . . . . 28
Mecha nica l key . . . . . . . . . . . . . . . . . . . . 28, 29
r emov ing . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
u nlocking/lo cking . . . . . . . . . . . . . . . . . 3 0, 32
K ick-dow n . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Knee a irbags . . . . . . . . . . . . . . . . . . . . . . . . . 144
Desc ription . . . . . . . . . . . . . . . . . . . . . . . . . 144
How they work . . . . . . . . . . . . . . . . . . . . . . 145
Important safety instr uctions . . . . . . . . . . 146
255