2016 AUDI S4 change key battery

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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 261.
Removing the mechanical key
Fig. 19 Remote master key: removing t he m ec hani ca l key
.,. Press the release button@o fig. 19.
.,. 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 o
page 66.
-lock and unlock the lockable* rear bench seat
and pass-through* o
page 69.
-activate the child safety locks on the rear doors
o page 41.
-lock and unlock the vehicle manually
opage 36 if this should not be possible with
the master key.
- use the ign ition key emergency release
o page 34.
Open ing and closing
Check light and battery in the master key
Fig. 20 Remote master key: re moving the bat tery holder
Check light in the master key
The check light@o fig. 20 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 33 .
.,. Press the re lease button ® o fig. 20on 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 carefully 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.
33

Index
K
Key........... .................. ..... 32
Battery replacement . . . . . . . . . . . . . . . . . . 33
Check light . . . . . . . . . . . . . . . . . . . . . . . . . . 33
E mergency key . . . . . . . . . . . . . . . . . . . . 32, 82
Ignition/engine on/off . . . . . . . . . . . . . . . . 80
Key replacement . . . . . . . . . . . . . . . . . . . . . 32
Mechanical key . . . . . . . . . . . . . . . . . . . . 32, 33
removing . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
un locking/locking . . . . . . . . . . . . . . . . . 34, 36
Kick-down . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
L
Lane Change Assistant
refer to side assist . . . . . . . . . . . . . . . . . . . 10 7
LATCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Description . . . . . . . . . . . . . . . . . . . . . . . . . 172
Installing a child restraint......... .... 172
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Mounting and releasing the anchorage
hook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Launch Control Program . . . . . . . . . . . . . . . . 95
Leather care/cleaning . . . . . . . . . . . . . . . . . 196
Leaving home . . . . . . . . . . . . . . . . . . . . . . . . . 49
Left hand dr ive . . . . . . . . . . . . . . . . . . . . . . . . 50
Lifting jack . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Light adaptive light . . . . . . . . . . . . . . . . . . . . . . . . 48
Coming/Leaving home......... .. .. .... 49
Daytime running lights . . . . . . . . . . . . . 48, 49
Exterior lighting . . . . . . . . . . . . . . . . . . . . . . 49
Fog lights/rear fog light(s) . . . . . . . . . . . . . 48
Interior/reading lights . . . . . . . . . . . . . . . . 51
L ow beam .. .. .... ........... .. .. .. .. 48
Rear fog lights .. .. .. .. .. .. .. .. .. .. .. . 48
Side marker lights . . . . . . . . . . . . . . . . . . . . 48
Travel mode . . . . . . . . . . . . . . . . . . . . . . . . . 50
Light/rain sensor Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . 48
I ntermittent (w indshield wipers) . . . . . . . . 54
Sensor defective . . . . . . . . . . . . . . . . . . . . . . 21
Lighting Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
268
Lights
Emergency flashers . . . . . . . . . . . . . . . . . . . 50
High beam . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Turn signals . . . . . . . . . . . . . . . . . . . . . . . . . 49
Locking Rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Locking/unlocking at the lock cylinder . . . . . . . . . . . . . . . . . . . . 36
by remote control . . . . . . . . . . . . . . . . . . . . 34
with the central lock ing switch . . . . . . . . . . 35
with the convenience key. . . . . . . . . . . . . . . 34
Low beams . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Lower anchorage locator button 172
Luggage compartment Cargo net . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Cover........ ... .. .. ................ 69
Enlarging . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Floor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Partition net . . . . . . . . . . . . . . . . . . . . . . 70, 71
Pass-through . . . . . . . . . . . . . . . . . . . . . . . . 7 4
Reversible mat . . . . . . . . . . . . . . . . . . . . . . . 73
Securing attachments . . . . . . . . . . . . . . . . . 73
Ski sack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Storing cargo correctly . . . . . . . . . . . . . . . 126
Tie-downs . . . . . . . . . . . . . . . . . . . . . . . 72, 128
Valet parking . . . . . . . . . . . . . . . . . . . . . . . . 44
Lumbar support . . . . . . . . . . . . . . . . . . . . . . . 60
M
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 258
Malfunction Indicator Lamp (MIL) . . . . . 20, 29
Manua l transmiss ion . . . . . . . . . . . . . . . . . . . 90
Mechanical key . . . . . . . . . . . . . . . . . . . . . 32, 33
Memory function . . . . . . . . . . . . . . . . . . . . . . 63
Mileage Average . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Instantaneous . . . . . . . . . . . . . . . . . . . . . . . 24
Mirrors Compass ........ ... ............. .... 57
dimming .. .. .. .. .. .. ... .. ..... ... .. . 52
Exterior mirrors . . . . . . . . . . . . . . . . . . . . . . 51
Vanity mirrors . . . . . . . . . . . . . . . . . . . . . . . 53
Monitoring the Advanced Airbag System . . 148