change key battery AUDI S3 2015 Owners Manual

LED and batteries in the remote control
key
Fig. 2 1 Remote master key: LED
Fig. 22 Remote master key: opening the cove r
LED in the remote control key
The LED¢ fig. 21 can tell you about the func­
tion of the remote control key .
.. If you press a button quickly, the LED blinks
once .
.. If you press a button longer (convenience
opening*) , the LED blinks several times .
.. If the LED does not blink , the remote con ­
trol key battery is dead. The message
Ill
Plea se change key battery can also appear
in the instr ument cluster display. Replace
the battery.
Replacing the remote control key battery
.. Pry off the cover w ith a coin ¢ fig . 22 .
.. Insert the new battery with the"+" fac ing
up.
.. Press the cover back onto the key until it
clicks into place .
We recommend having the battery replaced
~ by an authorized Audi dealer.
0 > co
rl I.O
"' M
"' rl
Opening and closing 3 7
@) For the sake of the environment
Dead batteries must be disposed of using
methods that will not harm the environ­
ment. Do not dispose of them in house­
hold trash .
{!) Tips
The rep lacement battery must meet the
same specifications as the origina l battery.
Remote control key synchronization
The remote control key must be synchronized
if the veh icle does not lock and unlock w ith
the remote control.
.. Press the remote control key button
Im .
.. Insert the key in the driver door lock w ith in
30 seconds .
"' Press the
l@J button or~ button .
Unlocking/locking by remote control
Fig. 23 Remote control key or conve nien ce key buttons
@ffi Open
@ 6".i Close
© c:s Close rear lid
@I PANIC I Trigger the alarm
.. To unlock the vehicle, press the button@lm
¢fig.23 .
"'To lock the veh icle, bring the selector lever
into the P posit ion and press the~ button
®·
"'To unlock the luggage compartment lid,
press the~ button
© briefly.

228 Check ing and F illin g
8_ WARNING
-Brake fluid is poiso nous. It must be sto r­
ed only in th e closed original container
out o f the reach of children!
- Brake fa ilure can result from old or inap­
propriate brake fluid. Observe these pre­
caut ions:
- Use only brake fluid that meets SAE specification
J 1703 and conforms to
Federal Motor Vehicle Standard 116.
Always check with your authorized Audi
dealer to make sure you are using the
correct brake flu id. The correct type of
brake fluid is also indicated on the
b rake fluid reservoir.
- The brake fluid must be new. Heavy use
of the brakes can cause a vapor lock if
the brake fluid is left in the system too
l ong. This can serious ly affect the effi­
ciency of the bra kes as well as yo ur
safety . This could result in an acc ident.
@ Note
Brake flu id will damage the paint of your
veh icle.
@i 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
requ ired and the ne cessary expert ise, we
recommend that you have the brake fluid
changed by your author ized Audi dealer .
Battery
General information
The battery in your Audi does not need any
maintena nce under
normal operating condi­
tions. Aud i recommends having the elect ro­
l yte level check by a n author ized Audi dealer
or author ized Audi Se rv ice Facili ty when there
are
high outside temperat ures or when driving
all day. The e lectrolyte level shou ld a lso be
checked each time the battery is charged
¢ page 230.
Have the batte ry checked when yo u bring your
vehicle in for an inspection . It is a good idea
to replace the battery if it is more than 5 years
o ld.
D uring certain types of airbag deployments,
the battery is disconnected from the vehicle electrical system for safety reasons¢
& in
Repair, care and disposal of the airbags on
page 160.
Di sconnecting the battery te rminals
Some vehicle functions (such as power win ­
dows) are not avai lable when the battery is
disconnected. These functions must be pro­
grammed after the battery is reconnected. To
avo id hav ing to do this, only disconnect the
battery from the vehicle electrical system
when that is necessary to perform repairs .
To reprogram the functions, proceed as fol­
lows:
Function Reprogramming
Power window one-¢ page 44, Correcting
touch up/down power window ma/-
function functions
Remote control key
If the vehicle does not
or r
eact to the key, it
convenience key must be synchronized
¢ page37
Dig ita l cl ock ¢page 10
ESC indicator light The indicator light
goes out after driving
a few meters
Not running the vehicle for long periods
of time
If you do not drive your vehicle fo r several
days or weeks, electrical components are
gradua lly reduced or switched off. This re­
duces e nergy consumption and maintains the
vehicle's ability to start over a long per iod of
time
¢ page 194. Some convenie nce func­
tions, such as interior lig hting or power seats *
may not work. These convenience functions
will be ava ilable again once you switch the ig-
nition on and start the engine. .,.