2015 AUDI A6 battery replacement

32 Opening and clo sing
Remov ing the mechanical key
Fig. 18 Remote control master key: remo vin g the me­
ch ani cal key
> Press the release button @c::> fig. 18.
.. Pull the mecha nica l key @ out of the master
key.
Using the mechan ica l key, you can:
- lock and unlock the storage compartment
on the passenger's side
c::> page 60 .
-lock and unlock the vehicle manually
<=>page 36.
-lock the front and rear passenger doors me­
chanically
c::> page 37.
Master key battery replacement
Fig . 19 Remote mas ter key: Removing the batter y
ho lder
Ch eck light in the master ke y
The check light @in the master key provides
information about d ifferent cond itions .
.. The check light comes 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 bat­
tery is dead and has to be rep laced . In addi­
t ion, when the battery is dead the
II sym ­
bol appears in the instrument cluster dis- play as well as the message:
Plea
se ch ange
key b attery.
Ma ster key battery replacement
• Pull the mechanical key out of the master
key
c::> page 32 .
.. Press the release button @ on the battery
holder and at the same time pull the battery
holder out of the master key in the direction
of the arrow .
.. Install the new battery CR 2032 with the
"+" sign facing down.
• Push the battery holder carefully into the
maste r key .
• Insta ll the mechan ica l key.
@ For the sake of the environment
D ispose of dead batteries properly so as
not to poll ute the environment.
(D Tips
The replacement battery must be the
same specification as the original.
Electronic immobilizer
The immobilizer helps to prevent unauthor­
ized use of your vehicle .
A computer chip ins ide your key automatically
deactivates the electron ic immobilizer when
the key is inside the vehicle . When you remove
the key from the vehicle, the electron ic immo­
bilizer is automatically ac tivated once aga in .
_& WARNING
-
A lways take the key with you when you
l eave the vehicle . T he key can disarm the
e lectronic engine immobilize r and permi t
an unauthorized person to start the engine
and enable operation of the vehicle sys­
tems such as power window or power sun­
roof leadi ng to serious personal injury.
(D Tips
- The vehicle cannot be started if an una u­
thorized key is used . The vehicle may not
start if another radio device s uch as a key "'

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12-volt sockets
Applies to vehicles: with 12-volt sockets
Fig. 59 Section of the trim panel of the luggage com ·
partment: 12-volt socket
Fig . 60 Rear center console: 12-volt socket
~ To reach the 12-volt socket in the luggage
compartment, press the net down
<=> fig. 59.
There is an additional 12-volt socket in the front and rear center console
c:> fig. 60.
The 12-volt sockets can be used for electrical
accessories . T he power input must not exceed
120 watts.
Before you purchase any accessories, always
read and fo llow the information in
c:> page 294, Additional accessories and parts
replacement.
_& WARNING
The sockets and the electr ical accessories
connected to them operate on ly when the
ignition is switched on . Incorrect usage
can lead to serious injuries or burns. To re­
duce the risk of injuries, never leave chil·
dren unattended in the vehicle with the ve­
hicle key.
S ea ts a nd s to rage 59
(D Note
To avoid damaging the socket, only use
plugs that fit properly.
- Never connect equipment that generates
electrical current, such as a solar pane l
or battery charger, to the 12-vo lt socket.
This could damage the vehicle's electri­ cal system.
- The 12-vo lt socket should only be used
for a short period of ti me as a power
source for electrical equ ipment. Please
use the electr ical sockets in the vehicle
when con necting equ ipment for longer
periods.
- To avoid damaging the socket, only use
plugs that fit properly.
(D Tips
When the engine is off and accessories are
still plugged in and are on, the vehicle ba t­
tery can still be d rained.
Storage
(upholder
Fi g. 61 Ce nter console: cupholder
Fig. 62 Rear center armrest: cupholde r• extended

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Repair, care and disposal of the airbags
Parts of the airbag system are installed at
many different places on your Audi. Installing,
removing, servicing or repairing a part in an
area of the vehicle can damage a part of an
airbag system and prevent that system from
working properly in a collision.
There are some important things you have to know to make sure that the effectiveness of
the system will not be impaired and that dis­
carded components do not cause injury or pol­ lute the environment.
A WARNING
Improper care, servicing and repair proce­
dures can increase the risk of personal in­
jury and death by preventing an airbag from deploying when needed or deploying
an airbag unexpectedly:
- Never cover, obstruct, or change the
steering wheel horn pad or airbag cover
or the instrument panel or modify them
in any way.
- Never attach any objects such as cup
holders or telephone mountings to the
surfaces covering the airbag units.
- For cleaning the horn pad or instrument
panel, use only a soft, dry cloth or one
moistened with plain water. Solvents or
cleaners could damage the airbag cover
or change the stiffness or strength of the
material so that the airbag cannot de­
ploy and protect properly.
- Never repair, adjust, or change any parts
of the airbag system.
- All work on the steering wheel, instru­
ment panel, front seats or electrical sys­
tem (including the installation of audio
equipment, cellular telephones and CB
radios, etc.) must be performed by a
qualified technician who has the training
and special equipment necessary.
- For any work on the airbag system, we
strongly recommend that you see your
authorized Audi dealer or qualified work­
shop.
Airbag system 161
-Never modify the front bumper or parts
of the vehicle body.
- Always make sure that the side airbag
can inflate without interference:
- Never install seat covers or replace­
ment upholstery over the front seat­
backs that have not been specifically
approved by Audi.
- Never use additional seat cushions that
cover the areas where the side airbags inflate.
- Damage to the original seat covers or
to the seam in the area of the side air­
bag module must always be repaired
immediately by an authorized Audi
dealer.
- The airbag system can deploy only once. After an airbag has been deployed, it must be replaced with new replacement
parts designed and approved especially
for your Audi model version. Replace­
ment of complete airbag systems or air­
bag components must be performed by
qualified workshops only . Make sure that
any airbag service action is entered in
your Audi Warranty
& Maintenance book­
let under
AIRBAG REPLACEMENT RE­
CORD.
- For safety reasons in severe accidents,
the alternator and starter are separated
from the vehicle battery with a pyrotech­
nic circuit interrupter.
- Work on the pyrotechnic circuit inter­
rupter must only be performed by a
qualified technicians who have the ex­
perience, information and special tools
necessary to perform the work safely.
- If the vehicle or the circuit interrupter
is scrapped, all applicable safety pre­
cautions must be followed.
@) For the sake of the environment
Undeployed airbag modules and preten­
sioners might be classified as Perchlorate
Material - special handling may apply, see
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-Charge the battery in a well ventilated
area. Keep away from open flame or elec­
trical spark. Do not smoke. Hydrogen gas generated by the battery is explosive.
- To reduce the danger of explosion, never
connect or disconnect charger cables
while the charger is operating.
- Fast charging a battery is dangerous and
should only be attempted by a compe­
tent technician with the proper equip­
ment.
- Battery acid that may spill during charg­
ing should be washed
off with a solution
of warm water and baking soda to neu­
tralize the acid.
(D Note
Never use a fast charger as a booster to
start the engine. This will seriously dam­
age sensitive electronic components, such
as control units, relays, radio, etc., as well
as the battery charger.
Battery replacement
The new battery must have the same specifi­
cations and dimensions as the original equip­
ment battery.
Intelligent energy management in your vehi­
cle is responsible for distributing the electri­
cal energy throughout your vehicle
qpage 198. The intelligent energy manage­
ment system will keep the engine battery
charged better than vehicles without this sys­
tem. To make sure the additional electrical en­
ergy 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 time your vehicle was delivered). Specifi­
cations are listed on the battery housing. Your
authorized dealer must code the battery in
the energy management system to enable you
to use the energy management functions cor­
rectly after replacing the battery.
Checking and filling 235
The new battery must have the same capacity,
voltage (12-volts), amperage, construction and plug sealing.
When installing the battery, make sure the ig­ nition and all electrical consumers are switch­
ed off.
(D Note
Make sure the ventilation hose on the side
of the battery is connected, otherwise
fumes or battery acid can leak out.
- Vehicles with the Start-Stop-System* are
equipped with a special cycle-proof AGM
battery. Installing a different type of
battery can cause problems in the vehi­
cle electrical system. When replacing the
vehicle battery, always install one with
the same specifications as the original
battery.
@ 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. Batteries contain sulfuric acid and
lead and must always be disposed of prop­
erly in compliance with all environmental
regulations. Disposing of vehicle batteries
improperly is very dangerous to the envi­
ronment.
Windshield/headlight*
washer container
Fig. 194 E ng in e compart ment : cov er on th e w in ds hield
and headl ig ht* washer f luid reservoir
II-
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-----------------------------~I~ n~d~ e~x 303
K
Key ... .... .. .. .... .. .... ... .. .. .... 31
Battery rep lacement master key ... .. .. 32
Emergency key . . . . . . . . . . . . . . . . . . . . . 31
Key not recognized . . . . . . . . . . . . . . . . . . 76
Key replacement . . . . . . . . . . . . . . . . . . . 31
Master key . . . . . . . . . . . . . . . . . . . . . . . . 31
Mechanical key . . . . . . . . . . . . . . . . . . . . . 32
Kick-down tiptronic
K . b nee air ags . ............. .. .. .. .. .
D escr ipt ion .... .. ..... ... .. .. .. .. .
How they work . ... .... ... .. .. .. .. . 111
16 2
162 163
Important safety instructions ... .. .. . 164
L
Lane assist . . . . . . . . . . . . . . . . . . . . . . . . . 93
L ane Change Ass istant
refer to side assist . . . . . . . . . . . . . . . . . . 96
LATCH
.... .. ............. .... .. ... 185
Descr ipt ion . .... ......... .... .. .. . 186
Instal ling a child restraint .. .. .. .. .. . 187
L ocat ion . ............ ...... .... .. 186
M ounting and releasing the ancho rage
hook .. .. .. .... ......... .... .. .. . 187
Launch Contro l Program .... .. .. .. .. . 112
L eather clean ing/protection ... .. .. ... 2 12
L eaving home .. ..... ...... .. .. .. .. .. 45
Lifting jack ........................ 275
L ift ing vehicle
Light 287
Ambie nce lighting ........... .. .... . 46
Com ing/Leavi ng home ......... ... ... 45
D aytime running lig hts .... .. .. .. .. .. 43
E mergency flashers ....... .. .. .. .. .. 44
E xte rio r lighting ... .... ... .. .. .. .. .. 43
Headlig ht range contro l ... .. .. .. .. .. 4 3
High beam ... ... ..... ... .. .. .. .... 45
Low beam .. ............. .... .. .... 43
Rear fog lights ........... .. .. .. .. .. 43
Side marker lights ........ .. .. .. .. .. 43
Turn signa ls .. ..... ...... .. .. .. .. .. 45
Light/rain sensor Headlights . ............. .... .. .. .. 43
Intermittent (windshield wipers) .. .. .. 48
Sensor defective . . . . . . . . . . . . . . . . . . . . 23 Load
ing the roof rack .. .. .. ... ... .. .. . 62
Locking Power loc king switc h ............... . 36
Remote con trol . . . . . . . . . . . . . . . . . . . . 34
U sing the key .. .. ................. . 36
Low beams
. .. .. .... .......... ...... 43
Lower universal anchorages (Canada) 185
Luggage compartment Cargo ne t . . . . . . . . . . . . . . . . . . . . . . . . . 6S
E nlarging . . . . . . . . . . . . . . . . . . . . . . . . . 64
Loading ... .. .... .. . .. .. ..... ... .. . 63
Movement-activated ope ning . ... .. .. . 38
Ski sack ... .. .. .. .. . .............. . 65
Stow ing luggage ..... ............. 132
Tie-downs . . . . . . . . . . . . . . . . . . . . . . . . . 6S
Lumbar support Front seats . . . . . . . . . . . . . . . . . . . . . . . . 54
M
Maintenance . ....... . .. .. ..... ... .. 292
Malfunction Ind icator Lamp (MIL) . . 21, 29
Manua l shift program ... ............. 111
Massage func tio n
F ron t se ats . . . . . . . . . . . . . . . . . . . . . . . . 54
Matte f inish paint clean ing .......... . 209
Mechanica l key .. .. .. . ... ...... ... .. . 32
Mir ro rs
Adjus ting t he ex ter ior mirrors . . . . . . . . . SO
d' . 1mming .. .. .... .. . .. .. ..... ... .. . 51
Vanity mirrors ... .. . ... ...... ... .. . 47
Monito ring the Advanced Airbag System 157
Mult ifunct ion steer ing whee l .......... . 25
mult itron ic (automatic t ransm ission) . .. 107
N
Natu ra l leather
Cleaning
New tires and wheels
NH TSA
Contacting 212
2S7
134
N igh t vision assistant ............ .. .. 103
Cleaning came ra lenses ......... .. .. 210
N itrogen oxide (NOx) catalyt ic converte r
refer to Ad Blue .......... ......... . 218
Number of seats . .. .... ......... .. .. 136
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