2015 AUDI A3 CABRIOLET battery capacity

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Always check with your authorized Audi
deale r to make s ure you are using the
correct brake f luid. The correct type of
b rake fluid is a lso indicated on the
b rake fluid reservoir .
- The brake f luid must be new. Heavy use
of the brakes can cause a vapor lock if
the brake fl uid is left in t he system too
long. This ca n ser ious ly aff ect th e effi­
ciency of the bra kes a s well as yo ur
safety. This could resul t in an accid ent.
(D Note
Brake fl uid will damage the paint of your
ve hicle .
@ For the sake of the environment
Because of the problem of proper d isposa l
of brake flu id as we ll as the special tools
req uired and the necessa ry expert ise, we
recom mend tha t you have t he b rake fluid
changed by your aut hor ized Audi de aler.
Battery
General information
The batte ry in you r Audi does not need any
maintenance unde r
normal operating condi­
tions . Aud i recommends having the elect ro­
l y te level check by a n author ized Audi dealer
or author ized A udi Se rv ice F acili ty when there
a re
high outside tempe ra tur es or when dr iv ing
all day. The e lec trolyte level sho uld also be
checked each time the battery is charged
¢ page 225.
Have the bat tery c hecked w hen you br ing yo ur
ve hicl e in for an inspec tion. I t is a good idea
to re place the battery if it is mo re than 5 years
old .
D uring certa in types of a irbag deploymen ts,
t he bat tery is disconnected from the vehi cle
e lectrical system fo r safety reasons ~ &.
in
Repair, care and disposal of the airbags on
page 162.
Checking and Fillin g 223
Disconnecting the battery terminals
Some vehi cle fu nctions (such as power w in ­
dows) a re not ava ilable when the batte ry is
disco nnected . These fu nctions must be p ro­
grammed afte r the battery is reconnected . To
avo id hav ing to do this, only disconnect the
battery from the vehicle electrical system
whe n that is necessary to perform repairs .
To reprogram the functions, proceed as fo l­
lows:
Function Reprogramming
Power window one -¢ page 40, Correcting
touch up/down power window ma/-
function functions
Remo te control key If the vehicle does no t
or r
eact to the key, i t
convenience key must be synchronized
¢ page33
Dig ita l cl ock ¢pag e 10
ESC indicator light The indicator light
goes out after driv ing
a few meters
Not running the vehicle for long period s
of time
If you do not drive your vehicle fo r several
days or weeks, elect rical componen ts are
gradua lly reduc ed o r switched off. This re­
duces e nergy consumption and maintai ns the
vehicle 's ability to star t ove r a long per iod of
t ime ~
page 193. Some co nvenience func­
tions, s uch as in terior lighting or power sea ts*
may not work . These convenience functions
will be ava ilab le again once you switc h the ig­
nit ion on and sta rt the engine.
Winter operation
D uring the winte r mon ths, i t is common for
the battery capacity to dec rease as the tem ­
peratures become lower . This is because more
power is needed to start the vehicle and com ­
ponents such as the head lights and the rear
window defogger are used more frequently . .,..
•
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•

224 Check ing and F illin g
Avoid using power unnecessarily, especially in
city driving or on short trips. Have your au­
thor ized Audi dealer or authorized Audi Serv ­
ice Facility check the battery capacity before
the start of winter
c;,page 225. A well-charg­
ed battery will not only reduce starting prob ­
lems in cold weather, but it w ill also last lon­
ger .
A WARNING
-
-Wor k on the battery requires expert
knowledge. Contact your authorized Audi
dealer qualified repair facility for infor­
mation regarding the vehicle battery .
There is a risk for chemical burns or ex­
plosions.
- Never open the vehicle battery. Do not
t ry to change the battery e lectrolyte lev­
el. Otherwise exp losive gas will escape
from the battery and increase the risk of
an exp losion .
(D Tips
If your vehicle is not driven for severa l
weeks in very cold temperat ures, remove
the battery and store it in a place where it
w ill not freeze. This prevents the battery
from being damaged and need ing to be re ­
placed .
Working on the battery
Be especially careful when working on or near
the battery .
The battery is located in the luggage comp art­
ment under the floor . Before you check any­
thing in the luggage compartment,
re ad and
heed all WARNINGS
¢ ,& .
Always heed the s afet y warnings , when work­
ing on the vehicle battery or the vehicle elec ­
tr ica l system to preve nt injury .
The following WARNINGS are very
i mp ortan t wh en wo rking on th e battery :
Alw ay s hee d the followin g WARNING SYM ·
BOL S and safety pr ecaution s when w orking
on the battery.
®
Alwa ys wear eye prote ction .
&
Battery acid contain s sulfuri c acid.
Always wear glov es and e ye protec-
tion.
@
No
· spark s
· flames
· smoking .
~
When a battery is charged, it produ-
ces hyd rogen gas which is ex plosi ve
and could caus e personal injury.
®
Alwa ys keep th e batt ery well out of
rea ch of children .
A WARNING
Whenever working on the battery or on
the electrical system, there is the risk of
i njury, accident and even fire. Read and
heed the following WARNINGS:
- Always wear eye protection. Do not let
battery ac id or any lead particles get on
your skin or clothing. Shield your eyes.
Exp losive gases can cause blindness or
other inju ry.
- Battery acid conta ins sulfuric acid. Sulfu­
ric acid can cause blindness and severe
burns .
- Always wear g loves and eye protection.
Do not tilt the battery because acid
could leak out of the ventilat ion open­
ings.
- If you get battery ac id in your eyes or
on your skin, immediately rinse with
cold water for several minutes and get
med ica l attent ion.
- If you shou ld ingest any battery acid,
seek medical attention immediately .
- Do not expose the battery to an open
f lame, e lectr ic sparks or an open light.
- Do not smoke .
-

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The new battery must have the same capacity,
voltage (12-vo lts), amperage, construction
and p lug sealing .
When insta lli ng the bat tery, make sure the ig­
nition and all e lectr ica l consumers are switch­
ed off .
CD Note
Ma ke sure the vent ilat ion hose on the s ide
of the battery is connected, otherwise
fumes or battery acid can leak out.
@) For the sake of the environment
Because of the problem of proper disposal
of a battery, we recommend your author ­
ized Audi dealer change the battery for
you. Batter ies contain su lfuric ac id and
lead and must always be disposed of prop­
erly in compliance with all environmental
regulations. D isposing of vehicle batteries
improperly is very dangerous to t he envi­
ronment.
Windshield washer container
F ig. 171 Engine co mpa rtment: cover on the windsh ield
an d headligh t* washer fluid reservo ir
The washer flu id containe r is marked with the
symbol~ on its cap ¢
fig. 171, q page 216,
fig. 165 .
.,. Before you check anything in the engine
compartment,
always read and heed all
WARNINGS q page 214 .
.,. Lift the filler cap tongue to add washer flu­
id. You can fill the container to the top.
.,. Press the cap back onto the filler neck after
filling the container.
Che cking and Fillin g 22 7
You can find the reservoir capacity in the table
in ¢
page 280 .
Clean water should be used when filling up. If
poss ible, use soft wa ter to prevent scaling on
washe r jets. Always add a g lass cleaner solu ­
tion (with frost protection in the winter).
CD Note
- Do not mix eng ine coolant antifreeze or
any other additives to fill up the wind­
shield washer reservoir.
- Do not use a glass cleaner that contains
pai nt so lvents, there is a risk of damag­
ing the paint.

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Emergency situations
General
This chapter is intended for trained emer­
gency crews and working personnel who have the necessary tools and equipment to
perform these operations.
Starting by pushing or
towing
(D Note
Vehicles with an automatic transmission
cannot be started by pushing or towing.
Starting with jumper
cables
If necessary, the engine can be started by
connecting it to the battery of another vehi­
cle.
If the engine should fail to start because of a
discharged or weak battery, the battery can be
connected to the battery of
another vehicle,
using a
pair of jumper cables to start the en­
gine.
Jumper cables
Use only jumper cables of sufficiently large
cross section to carry the starter current safe­
ly. Refer to the manufacturer's specifications.
Use only jumper cables with
insulated termi­
nal clamps which are distinctly marked :
plus(+) cable in most cases colored red
minus(-) cable
in most cases colored black.
A 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 lean­
ing over the battery whenever possible.
- A discharged battery can freeze at tem­
peratures just below 32 °F (0 °C). Before
Emergency situations 273
connecting a jumper cable, you must
thaw the frozen battery completely, oth­
erwise 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 explosive gas­
es. Keep sparks, flame and lighted ciga­
rettes 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
(Ah) of the booster battery should not be
lower than that of the discharged bat­
tery . Use of batteries of different voltage
or substantially different "Ah" rating
may cause an explosion and personal in­
JU ry.
- Never charge a frozen battery. Gas trap­
ped in the ice may cause 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) rat­
ing may cause an explosion and injury.
The capacity (Ah) of the booster battery
should not be lower than that of the dis­
charged battery.
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS ¢
page 214.
(D Note
-Applying a higher voltage booster bat­
tery will cause expensive damage to sen­
sitive electronic components, such as
control units, relays, radio, etc.
- There must be no electrical contact be­
tween the vehicles as otherwise current
could already start to flow as soon as the
positive(+) terminals are connected. ..,. •
•
•

298 Index
What should I do after replacing wheels? 242
Wheel bo lts
Torque . .. .... ........... ........ . 256
Wheels . .. ................. .. .... . 228
All wheel drive .............. ... .. .
192
Check ing tire pressure .......... .... 240
C leaning . .. ................ ... ... 205
Cold t ire in flat ion pressu re ... .. .. .. . 235
General notes . ............... .... . 228
Glossary of t ire and load ing te rm ino lo-
gy .. .... .. ............ ... .. .... . 230
New tires and wheels .... .. .. .... .. . 248
Tires and vehicle load limits . ....... . 243
Wheel wrench ........... .. .. .. .. .. .
261
When must a safety belt be replaced? .. 141
When must the airbag system be inspect-
ed? ... .. .... .. .. ...... ... ... ..... . 158
When should I ad just the tire p ressu res? 242
When should I check the tire pressures? . 242
Where are lower anchorages located? . ..
184
Where can I find the tire pressures for my
car? ...... ....... ........... ... .. . 240
Why safety belts? ...................
139
Wind deflector .. ... .... ... .. .. .... .. 44
W indows
C leaning/remov ing ice ...... ... .. ... 206
W indshield
cleaning ... ............. .. .. .. ... . 53
defrost ing (automatic climate control
system) .. ................. ...... .. 73
defrost ing (manual climate cont ro l sys-
tem) .. .. .. .. ... ........ .. .. .. .. .. 7 1
also refer to Windshie ld ... .. .. .. .. . . 53
W indshield washer system ............ 53
Reservoir capacity ............ .. ...
280
Washer rese rvoir .......... .... .... 227
Windshield wipers Cleaning wiper blades ..... .... ...... 54
Folding up ............... ..... .. .. 54
Ind icator light . . . . . . . . . . . . . . . . . . . . .
24
Replacing w indshield w iper blades ... . . 54
Sw itching on and off ................ 53
W inter operation
Battery .... ...................... 223
Cooling system ................ .... 220
Winter tires .. ... .. ..... ... .. .. .... . 255
A ll-wheel drive .................... 255 Winter use
Car washes . ..... .. ... ..... ... .. .. 204
defrosting the windsh ie ld (automatic cli­
mate control system) . . . . . . . . . . . . . . . . 73
Removing ice from windows ..... .... 206
Seat heating ..... ................ .. 74
X
Xenon-Lights .... ............... .... 272
Xenon headlig hts . . . . . . . . . . . . . . . .
49 , 52