2016 AUDI A4 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 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

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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 wo rk 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 c ushions 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 .
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0 ::..:: co ..... ..... ~ Open the engine hood¢ page 203.
~ Open the cover on the positive pole~ fig. 186 .
~ Connect the charger connectors accord ing to
the instructions to the
ju mp st a rt b olts . (Bolts
under the cover= "positive", Bo lts with hex
head = "negative") .
~ Only now plug the mains lead for the charging
equipment into the wall outlet and turn it on
~ & -
~ Ma ke s ure t he c harging rate i s not ov er
30 amp s/14 .8 Vo lt.
~ When the battery is fu lly charged: Turn the
charging equipment off and remove the mains
lead from the wall outlet.
~ Now remove the clamps for the charging equip-
ment.
~ Close the cover on the posit ive pole .
~ Close the hood ~ page 203.
A discharged battery can freez e at temperatures
of only 32 °F (0 °C) . Allow a frozen battery to
thaw completely before attempt ing to charge it
~ _& . However, we recommend not us ing a
thawed batte ry again because the battery casing
can be cracked due to ice format ion and can leak
battery acid.
Battery charg ing (Maximum charging rate of
30 amps /14.8 Volt )
When cha rging at low vo ltages (e .g . with a tric k­
l e char ger ),
the battery cables do not have to be
disconnected first. The battery caps should
not
be opened when charging a battery.
It is not necessary to remove the batte ry from
the luggage compartme nt.
F a st cha rging the battery (charg ing rate
above 14.8 Volt s)
For techn ical reasons do not use a battery charg­
e r that uses voltage greate r than 14 .8 Volts to
charge your vehicle 's battery.
A WARNING
Charging a battery can be dangerous .
- Always follow the operating instructions
provided by the battery charger manufactur­
er when charging your battery .
Check ing and Filling
-Never charge a frozen battery . It may ex­
plode because of gas trapped in the ice. Al­
low a frozen battery to thaw out first.
- Do not reuse batteries which were frozen.
The battery hous ing may have cracked and
weakened when the battery froze.
- Charge the battery in a well ventilated area. Keep away from open flame or electrical
spark. Do not smoke . Hydrogen gas generat­
ed by the battery is explos ive.
- To reduce the danger of explosion, never
connect or disconnect charger cables while
the charger is operating .
- Fast charg ing a battery is dangerous and
should only be attempted by a competent
technician w ith the proper equipment.
- Battery acid that may spill during charging should be washed off w ith a solution of
warm water and baking soda to neutralize
the acid .
@ Note
Never use a fast charger as a booster to start
the engine . This will seriously damage sensi­
tive electronic components, such as control units, re lays, radio, etc., as well as the battery
cha rge r.
Battery replacement
The new battery must have the same specifica­
tions and dimensions as the original equipment
battery.
Intelligent energy management in your vehicle is
r esponsib le for distr ibut ing the e lectrical energy
t hr oughou t your vehicle ~
page 182. The intelli­
gent energy management system will keep the
engine battery charged better then vehicles with ­
out this system. To make sure the additional
electrical energy is available once again after you
have changed the battery, we recommend that
you install batteries of the same type and manu­
facture only (the same as those installed at the
t ime your vehicle was delivered) . Specifications
are listed on the battery housing . Your author­
ized Audi dealer must code the battery in the en-
ergy managemen t system to enable you to use
ll>
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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