2015 AUDI A6 charging

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Instruments and warning/indicator lights 17
-The engine compartment of any vehicle
is a dangerous area. Before you perform
any work in the engine compartment,
turn of the eng ine and allow it to cool.
Follow the warning stickers¢
page 222.
(D Note
Do not continue driving if the. symbo l
illuminates. There is a malfunct ion in the
eng ine cooling system -you could damage
your eng ine.
0 Battery
This warning/indicator light detects a mal­
function in the generator or in the vehicle's
electrical system.
The. warning/ind icator light illuminates
when you switch on the ignit ion and must go
out after the engine has started.
• Alternator fault: Battery is not being
charged
If the indicator light turns on and the mes­
sage appears, there is a malfunction in the
generator or vehicle e lectr ica l system .
Dr ive to your au thorized Audi dealer or quali ­
fied workshop immediately . Because the vehi ­
cle battery is discharging, turn
off all unnec­
essary electrical equipment such as the radio.
Seek professional ass istance if the battery
charge level is too low .
(•) Low battery: battery will be charged
while driving
If the indicator light turns on and the mes ­
sage appears , there may be limited starting
abi lity .
If this message turns off after a litt le wh ile,
the battery charged enough wh ile driving.
If the message does not turn off, have your
authorized Audi dealer or qua lified workshop
correct the mal func tion.
~ Safet y belts
This warning/indicator light reminds you to
put on your safety belt.
The . warning/ indicator light illum inates
when the ignition is switched on to remind
the driver and any front passenger to put on
the safety belt. Add it ionally, an acoustic warn­
ing (gong) wi ll also sound.
For more Information¢
page 136, i Safety
belt warning light .
~ Engine oil pressure malfunction
The red engine oil pressure warning symbol
requires immediate service or repair . Driving
with a low-oil-pressure indication is likely to
inflict severe damage to the engine.
• Switch off engine and check oil level
If the indicator light turns on and the mes­
sage appears, the oi l pressure is too low.
.,. Pull
off the road.
.,. Stop the vehicle.
.,. Turn
off the engine .
.,. Check the engine oil level c> page 226 .
.,. If the eng ine o il level is too low, add eng ine
oil ¢
page 226. Make sure that the oil pres­
sure warning symbol. appears no longer
in the display before you start dr iv ing again .
.,. If the eng ine o il level is correct and the indi­
cator light still turns on, turn the engine
off
and do not continue driving. Seek professio­
na l assistance .
(D Tips
- The engine oil pressure symbol. is
not an indicator for a low engine oil lev­
el. Do not rely on it. Instead, check the
oil level in your engine at regular inter­
vals, preferably each time you refuel ,
and always before going on a long trip.
- The yellow oil level warning indication
II requires oil refill or workshop serv­
ice without delay. Do not wait until the
red oil pressure warning. starts to
flash before you respond to the low oil

76 On the road
compartment is additionally heated by
the sun's rays.
(D Note
Do not stop the engine immediate ly after
hard or extended driving. Keep the engine r un ning for approximately two minutes to
prevent excessive heat build -up.
Driver message in the instrument
cluster display
Turn off ignition before leaving car
This message appears and a warning tone
sounds if you open the dr iver 's door when the
i gnit ion is switched on .
Press brake pedal to start engine
This message appears if you press the
I START ENGINE STOP! button to start the en­
gine and do not depress the brake peda l. The
engine can on ly be started if the brake pedal
is depressed.
Ill Is key in the vehicle?
If the indicator light turns on and the mes­
sage appears, the remote control key was re­
moved from the vehicle while the engine was
running . If the ignition key is not in the vehi­
cle you will not be ab le to switch on the igni­
tion or restart the engine after it has been
switched off. You w ill also not be able to lock
the vehicle from the outside .
Shift to P, otherwise vehicle can roll away.
Doors do not lock if lever is not in P.
This message appears for sa fe ty reasons
a long with an audib le warning tone if the P
selector lever position is not engaged when
stopping the engine with the
I STAR T ENGIN E ST OP ! button . Select the P se­
lector lever position . Otherwise the vehicle
could roll and it can not be locked .
II Key is not recognized. Hold back of key
against marked area . See owner's manual.
If the indicator light turns on and this mes­
sage appears, there is a malfunction
¢ page 76.
Turn off ignition before leaving car. Battery
is discharging
T h is message appears if the driver's door is
opened while the ignition is switched on. Al­
ways switch off the ignit ion if you are leav ing
the vehicle . See also ¢
page 80.
Shift to P and turn off ignition before leav­
ing car, otherwise vehicle can roll away
This message appears if the driver's door is
opened wh ile the ignition is switched on and
the selec tor lever is not in the P position. Shift
the selec tor lever into the P position and
swi tch off the ignition when you exit the vehi­
cle. Otherwise the vehicle could roll . See also
¢ page 80.
Starting the engine if there is a
malfunction
It may not be possible to start the engine un­
der cer tain circums tances, for example if the
ba ttery in the vehicle key is drained, if in ter­
ference hos affected the key or if there is a
system malfunction .
Fig. 78 Center co nsol e/master key: star ting the eng ine
i f the re is a mal funct ion
Requirement: The message Key not recog­
nized. Hold back of key against marked area.
See owner's manual.
must appear and the in­
dicator light
II must sw itch on .
.,. Hold the master key vertically in the loca­
tion indicated
f >l) ¢ fig . 78 .
.,. Press the brake pedal ¢ A in Starting the
engine on page
75 .

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Refuelling procedure
"'Insert the fuel nozz le from the gasoline
pump into the fue l filler neck as far as it will
go.
"' Se lect a medium refuelling rate so that the
noz zle switches off automatically when the
tank is full.
Putting the fuel cap back on
"'After filling your tank, twist the fuel fi ller
cap clockwise as far as it will go.
"' Close the fuel filler flap .
To avoid fuel spi lling or evaporating from the
fuel tank always close fuel fi ller cap properly
and comp letely. An improperly closed fuel fill­
er cap may also cause the MIL lamp¢
page 29
to come on.
A WARNING
Improper refueling or handling of fuel can
cause fire, explosion and severe burns .
- Fuel is highly flammable and can cause
severe burns and other injuries .
- Failure to shut the eng ine off while refu­
eling and/or to insert the pump nozzle
fully into the fuel f iller neck could cause
fuel to spray out of filler neck or to over­
flow. Fuel spray and ove rflow ing fuel can
cause a fire.
- Never use a cellular telephone while re­
fueling. The elect romagnetic radiation
can cause sparks that can ignite fue l va­
pors and cause a fire.
- Never get back into you r vehicle while re­
fueling. If in exceptiona l circumstances
yo u must get back in your vehicle wh ile
refueling, make certain that you close
the door and touch metal to discharge
static electricity before touching the fill­
er nozzle again. Static electricity can
cause sparks that can ignite fuel vapors
released during refueling.
- Never smoke or have an open flame any­
where in or near you r vehicle when refu­
eling or filling a portable fuel container .
- For your safety, we strongly recommend
that you do not travel w ith a portable
Fuel supply and filling your fuel tank 217
fuel container in your vehicle. The con­
tainer, full or empty may leak and could
cause a fire, especially in a crash.
- If, under exceptional circumstances, you
must transport a portable fuel container,
please observe the following:
- Never fill a portable fuel container
while it is anywhere in or on the vehicle
(for example, in the luggage compart­
ment, or on the trunk) . Static electrici­
ty can build up while filling and can ig­
nite fuel vapors causing a fire.
- Always place a portab le fue l conta iner
on the ground before fi lling.
- Always keep the filler nozzle complete­
l y inside the portable container before
and during filling.
- If filling a portab le container made of
metal, the fi ller nozzle must always be
i n contact with the conta iner. This will
help prevent static electric ity from dis­
charging and cause a fire .
- Never spill fuel inside the vehicle or
luggage compartment. Fuel vapors are
highly flammable .
- Always observe local and state/provin­
cial laws regarding the use, storage
and transportation of fuel containers .
- Make certain the fuel container meets
industry standards (ANSI/ ASTM
F8S2 -86) .
(D Note
If any fuel has spilled onto the car, it
should be removed immediately to prevent
damage to the paint .
@) For the sake of the environment
As soon as the correctly operated nozzle
switches off automatically for the first
time, the tank is full. Do not try to add
more fuel because fuel may spill out . In
addition , the expansion space in the fuel
tank will be filled -causing the fuel to
overflow when it becomes warm and pol­
l ute the environment . •
•

234 Checking and filling
(D Note
-Do not disconnect the vehicle battery
when the ignition is on or when the en­
gine is running, otherwise, you will dam­
age electronic components in the electri­
cal system.
- If your vehicle is going to stand for a
long period of time without being driven,
protect the battery from "freezing", oth­
erwise it w ill be damaged and w ill then
have to be replaced.
Battery charging
Starting the engine requires a well charged
battery.
Fi g. 19 3 Engine compartment : connectors for a charg ·
er and jump sta rt cables
Alway s re ad and h eed all WARNINGS below
c:> & and c:> & in Working on the battery on
page 233 .
• Switch off the ignitio n and all electrical con­
sumers.
• Make sure the area is well vent ilated when
yo u charge the battery .
• Open the engine hood
i=!.> page 222.
• Open the red cover o n the pos itive pole
e!.>fig. 193.
• Connect the charger connectors according to
the instructions to the
jump start bolt s.
(Bolts under the red cover= "positive", Bolts
with hex head= "negative").
• Only now plug the mains lead for the charg­
ing equipment into the wall outlet and turn
it on
c::> .&,. .
• Mak e sure th e charging rate is not over
30 amp s/14 .8 Volt .
• When the battery is fully charged: Turn the
charging equipment off and remove the
mains lead from the wall out let.
• Now remove the clamps for the charging
equ ipment.
• Close the red cover on the positive pole.
• Close the hood
c::> page 223 .
A discharged battery can freeze at tempera­
tures of only 32 F
0 (0 °C). Allow a frozen bat­
tery to thaw completely before attempting to charge it
c::> ,&. . However, we recommend not
u sing a thawed batte ry aga in because the bat­
tery casing can be c racked due to ice fo rm a­
t io n an d can leak battery a cid.
Battery charging (Maximum charging rate
of
30 amps/14.8 Volt )
When charg ing at low vo lt a ges (e.g. wi th a
trickle charger ), the battery cables do not
have to be disconnected firs t. T he battery
caps should
not be opened when charg ing a
battery .
It is no t necessa ry to remove the battery from
the luggage compartment, and it is a lso not
necessary to d isconnect the cab les .
Fast charging the battery (charging rate
above 14.8 Volts )
For technica l reasons do not use a battery
c h arger that uses voltage greater than
14.8
Volts to charge yo ur vehicle's battery.
Ln._ WARNING
--
Charging a battery can be dangerous.
- Always follow t he operati ng instructions
provided by the battery charger manu­
facturer when charg ing your battery.
- Never cha rge a frozen battery . It may ex­
p lode because of gas trapped in the ice.
Allow a frozen batte ry to thaw out f irst.
- Do not reuse batteries wh ich were fro­
zen. The battery housing may have
cracked and weakened when the battery
froze.

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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-
•
•

284 Emergency situations
@ Tips
The discharged battery must be properly
connected to the vehicle's electrical sys­
tem. When jump starting or charging the
battery, never connect the negative
ground cable to the battery negative post
because the batte ry manager system must
be able to detect the battery 's state of
charge. Always connect the negative
ground cab le to the negative ground post
of the battery manager control unit.
Use of jumper cables
Make sure to connect the jumper cable
clamps in exactly the order described below!
Fig. 218 Engine compartment: connecto rs for jump
start cables and charger
Fig. 219 Jump start ing with the battery of another ve·
hide: @-booster battery, @-discharged ve hicle bat­
tery
The procedure described below fo r connecting
jumper cables is intended to provide a jump
start for your vehicle.
Vehicle with discharged battery:
.,. Turn off lights and accessories, move lever
of automatic transmission to N (Neutral) or
P (Park) and set parking brake.
Connect POSITIVE(+) to POSITIVE(+)
(red)
.,. Open the red cover on the positive terminal
¢fig. 218 .
1. Connect one end of the red positive cable
on the
jump start bolt c::;, fig. 219 @ (bolt
under the red cover = "positive") of the ve­
hicle to be started @.
2. Connect the other end to the positive ter-
mina l@ of the booster battery@.
Connect NEGATIVE (-) to NEGATIVE (-)
(black)
3. Connect one end of the black negative ca­
ble to the negat ive terminal @ of the
booster battery @.
4. Connect the other end to the
jump start
pin © (bolts with hex head bolt= "nega­
tive") of the vehicle to be started @.
Starting the engine
.,. Start the engine of the veh icle w ith the
booster battery@. Run the engine at a
moderate speed .
.,. Start engine with discharged vehicle battery
@ in the usual manner.
.,. If the engine fails to start, do not keep the
starter cranking for longer than 10 seconds.
Wait for about 30 seconds and then try aga in .
.,. With engine running, remove jumper cables
from both vehicles in the exact
reverse o r­
de r .
.,. Close the red cover on the positive term inal.
T he battery is vented to the outside to prevent
gases from entering the veh icle inter ior. Make
sure that the jumper clamps are well connect­
ed with their metal parts in full contact with
the battery terminals.
_& WARNING
To avoid serious personal injury and dam­
age to the vehicle, heed all warnings and
instructions of the jumper cable manufac­
turer. If in doubt, call for road service .
- Jumper cables must be long enough so
that the veh icles do not touch.
-

298 Index
AUTO automatic climat e control . ... ... ... ..
71
Automatic headlights ....... .. .... .. 43
climate control . . . . . . . . . . . . . . . . . . . . . 68
Auto Lock . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3
Automatic belt retractor .. ... ..... .. .
139
Automatic climate control
Air vents . .... ........... .... .... ..
7 1
Automatic recirculation . . . . . . . . . . . . . . 72
Opera tion . . . . . . . . . . . . . . . . . . . . . . . . . 70
Setup . .. .. ................ ... .. .. 72
synchron izing .... ......... ... .. .. .. 71
Automatic Shift Lock (ASL) . . . . . . . . . . . 108
Automatic transmission ..... .. .. .. .. . 107
Automatic Shift Lock (ASL) .......... 108
Driving .................... ..... . 109
Emergency mode .......... ... .... . 112
Emergency release .......... .. .... . 113
Kick-down . . . . . . . . . . . . . . . . . . . . . . . . 111
Manual shift program ..... .... .... . 111
Selector lever . . . . . . . . . . . . . . . . . . . . . 107
Automatic wipers .................. .. 48
Auto Safety Hotline ........ .. .. .. .. . 134
Ave rage consumption ....... .. .. .. .. . . 25
Average speed . . . . . . . . . . . . . . . . . . . . . . .
25
Avoid damaging the vehicle .. .. .. .. .. . 201
B
Ba ttery . .. .. ... .. ..... ... .... .. .. . 232
Charging . .. ................ ... ... 234
Important warnings .. .... .. .. .. .. . 232
Jump starting . ........... .. .. .. .. . 283
Locat ion . .. ............. .. .. .... . 232
low ... .. .. .. . ... ....... .. .. .. .. . 198
Replacing the battery ......... .. .. . 235
State of charge ............ ... .... . 198
Winter operation .......... ... .... . 232
Working on the battery ...... .. .... . 232
Before driving ............. .. .. .... . 126
Blended gasoline ........... ... .. .. . 214
Blower (automatic climate control) . . . . . . 71
Blower (climate control) . . . . . . . . . . . . . . . 68
Booster seats ............. .. .. .... .
180
Brake fluid
Changing the brake fluid ............
231
Checking the brake fluid lev el ... .. .. . 231
What is the correct brake fluid level? . . 231
What should I do if the brake fluid warn-
ing light comes on? ................
231
Brake system
Anti- lock braking system ............ .
19
Brake assist system ................ 193
Brake booster .... ............. .... 196
Brake fluid . ..... ................ . 231
Brake fluid specifications for refill and re-
placement .... ... .............. ..
231
Brake pads .. .. .. .......... ...... . 200
Electromechanical parking brake ... .. . 77
Fluid reservoir ... ................ . 231
How does moisture or road salt affect the
brakes? . .. .. .. .. ............. .. ..
195
Warning/indicator lights ............. 15
Worn brake pads symbol . . . . . . . . . . . . . 20
braking guard
Settings .. .. .. .. .. ........... .. .. .
91
Braking guard . .. .. ............. .. .. . 84
Messages . .. .. .. .. ..... ... ... .... . 91
Break-in period .... ................ . 200
Brake pads .... .. ................ . 200
Tires ..... .... ................... 200
Bulbs ...... .. .. .. .. ... .... .... .... 282
C
Californ ia Proposition 65 Warning . .. .. 223
Battery specific ... .......... .... .. 233
Capacities .. .... ............. ...... 290
Engine oil ..... .. .......... ...... . 224
Carbon parts
Cleaning . . . . . . . . . . . . . . . . . . . .
211, 212
Car carrier
Transpo rting your vehicle ...........
287
Care ...... .... ... .. .............. . 209
Cargo area ...... .. .. .............. . 132
Cargo net . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Catalytic converter . ............. .... 201
Center armrest
Cockpit ...........................
55
Central locking .... ............. .... . 33
Emergency locking ............. .... .
37
Certification .. .. .. ..... ........... . 295
Changing a wheel .. ................ . 272
Changing engine oil ... .. ... ..... .. .. 227