2015 AUDI A6 engine

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Instrument s and warning /indicator lights 29
Adjusting the height
The height of the display can be a djus ted to
t he individual driver .
.. Make sure you a re seated cor rect ly
<=>page 127.
.. Turn the knob~ to adjust the displ ay .
Settings in the MMI
.. Se lect: I CARI funct ion button > ( Car )* s ys­
tems
control button > D river Assist > Head­
up Display > Head-up Display content
or
Di splay brightne ss .
Display content
In the MMI, you ca n specify which information
should be displayed :
- Cruise contro l system*
- Navigatio n information*
- A udi adaptive cruise control *
- Audi a ct ive lane assist*
- Night vis ion assistant*
The speed display and some of the red indica­ tor lights cannot be hidden in the MMI.
Display brightness
You can ad just the display brightness in t he
MMI. The display brightness decreases auto­
mat ica lly as the amount of light decreases.
The basic leve l of brightness is adjusted with
the ins trumen t illum ina tion ¢
page 46 .
(D Note
To prevent sc ratches on t he g lass covering
the Head-up Disp lay, do not place any ob­
jects in the proj ection opening.
(D Tips
- Sung lasses w ith polar izat ion fi lters an d
unfavorable lighting condit ions can af­
fect the display.
- A specia l w indshield is needed for the
Head-up Display funct io n.
- Fo r information on cleaning, refer to
¢ table on page 211.
On-Board Diagnostic
system (OBD)
Malfunction Indicator Lamp (MIL )
The Ma lfunction Indicator Lamp ( MIL ) ¢'4 in
the instr ument cluster is part of the On-Board
Diagnostic (OBD II) system .
T he wa rni ng/indicator light ill uminates when
the ignit io n is switched on and goes out after
the engine sta rts and the id le has stab ilized.
This indicates that the MIL is working proper­
ly .
If the light does not go out afte r th e en gine
is started, or illuminates while you are dr iv­
ing, a mal function may exist in the engine sys ­
tem.
If the lig ht illum inates, the catalyt ic con­
verter could be damaged .
Contin ue driving
with reduced power (avoid­
ing s ustained high speeds and/or rapid accel­
erations) and have the cond ition corrected.
Contact your aut horized Audi dea ler.
If the light illuminates, the e lectronic speed
limiter may also be malfunct ioning . For more
information
c> page 30, Electronic speed
limiter.
An improperly closed fuel filler cap may also
cause the MIL light to illuminate
c> page 216.
On-Board Diagnostics
Fig. 1 6 Location o f Data Li nk Co nnector (D LC)
On-Board Diagnostics monitors the com po­
nents of your emission cont ro l system. Each
monitored component in your engine system
Iii>-

30 Instruments and warning /indicator lights
has been assigned a code. In case of a ma l­
function, the component will be identified
and the fault stored as a code in the contro l
module memory.
The MIL light may a lso illuminate if there is a
leak in the on-board fue l vapor recovery sys­
tem .
If the light illuminates after a refue lling,
stop the vehicle and make sure the fuel filler
cap is properly closed ¢
page 216.
In order to make an accurate diagnosis, the
stored data can only be displayed using spe­
cial diagnostic equipment (generic scan tool
for OBD) .
In order to connect the special diagnostic
equipment, push the plug into the Data L ink
Connector (DLC). The DLC is located to the
right of the hood release¢
fig. 16.
Your authorized Audi dealer or a qualified
service station can interpret the code and per­
form the necessary repair .
A WARNING
Do not use the diagnostic connector for
personal use . Incorrect usage can cause
malfunctions, which can increase the risk
of a coll ision!
Electronic speed limiter
-
Your veh icle may be factory equipped with
tires that are rated for a maximum speed of
130 mph (210 km/h). This is less than the
maximum speed of you r vehicle. To reduce the
risk of sudden tire failure and loss of control if
the vehicle is operated at excessive speeds,
your veh icle also has an electronic speed limit­
er. The electronic speed limiter prevents your
vehicle from go ing faster than the tire speed
rating. For more informat ion ¢
page 257 .
If the engine control unit receives faulty vehi­
cle road speed s ignals, the Malfunction Indi­
cator Lamp (MIU
¢'4 will illuminate. If this
occurs, contact the nearest authorized Aud i
dealer for assistance. S models
Your
vehicle's top speed is elect ron icall y limit­
ed to 155 mph (250 km/h).
If the engine control unit receives faulty veh i­
cle roadspeed signals, the Malfunction Indica­
tor Lam p (MIL)
¢'4 will illuminate . If this oc­
curs, contact the nearest authorized Audi
dealer for assistance.
_& WARNING
-= -
Always observe the posted speed limits
and adjust your speed to suit prevailing
road, traffic and weather cond itions. Never
drive your vehicle faster than the maxi­
mum speed rating of the tires installed .

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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Child safety lock for
the rear doors
The power child safety lock locks the rear win­
dows and prevent the rear doors from being
opened from the inside .
Fig. 30 Sectio n fr om driv er' s door : child sa fety lock
b uttons
• To activate the child safety lock for the left/
right rear door, press the left/right button
[!l
in the driver's door¢ fig. 30. The light in the
button w ill turn on.
• To deactivate the child safety lock for the
left/right rear door , press the left/right but­
ton [!] in the driver's door. The light in the
button turns off.
The following features are switched off:
- The interior door handles in the rear doors,
- The power windows in the rear doors .
In order to activate the ch ild safety lock on
the left and the right side , press the two safe­
ty buttons
[!l in succession .
Power windows
Controls
The driver can control all power windows.
Fig . 31 Sectio n of t he dr iv er 's d oor: Control s
Opening and closing 39
All power window switches are prov ided with
a two-po sition function :
Opening the windows
• Press the switch to the first stop and hold it
until the window reaches the desired posi­
tion.
• Press the switch briefly to the
second stop
to automatically open the window.
Closing the windows
• Pull the switch to the first stop and hold it
until the window reaches the desired posi­
tion.
• Pull the switch briefly to the
second stop to
automatically close the window.
Power window switches
@ Driver's door
® Passenger's door
© Left rear door
@ Right rear door
& WARNING
-When you leave your vehicle -even if on ­
ly briefly -always take the ignition key
with you . This applies particularly when
children remain in the vehicle. Otherwise
the children could start the engine or op­
erate electrical equipment (e .g . power
windows). The power windows are func­
tional until the driver's door or passeng­
er's door has been opened.
- Be careful when clos ing the w indows .
Check to see that no one is in the way, or
serious injury could result!
- When locking the vehicle from outside,
the vehicle must be unoccupied since the
windows can no longer be opened in an
emergency.
(D Tips
After the ignition has been switched off,
the windows can still be opened or closed
for about 10 minu tes. The power windows
are not switched off until the driver's door
or passenger's door has been opened.

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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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Warm and cold Climate controls
Description
App lies to vehicles: with three -zone cl imate contro l or
four -zone a uto mat ic climate contro l
The climate control system warms, cools and
adds humidity to the air in the vehicle interior.
It is the most effective when the windows and
sunroof* are closed . If the temperature inside
the parked veh icle becomes very warm, open­
i ng the w indow br iefly will speed up the cool­
ing process.
In all heating mode functions except
defrost,
the blower on ly switches to a higher speed
once the engine coolant has reached a certain
temperature.
Condensat ion from the cooling system can
drip and form a puddle of wate r under the ve­
h icle. This is normal and does not mean there
is a leak .
Pollutant filt er
The pollutant filter removes pollutants such
as dust and po llen from the air.
The air pollutants filter must be changed at
the intervals specified in your Warranty
&
Maintenance booklet, so that the air condi­
tioner can properly work .
If you drive your vehicle in an area with high
a ir pollution, the filter may need to be
changed more frequently than specified in
your Aud i Warranty
& Ma intenance booklet. If
i n doubt, ask your authori zed Audi Service Ad­
visor for adv ice.
K ey coded settings
Three-zone climate control: T he b lower set­
ting and air d istribution are stored automati­
cally and ass igned to the remote control key
that is in use .
Four-zone automatic climate control: The cli­
mate contro l settings are automatica lly stor­
ed and assigned to the remote control key
that is in use .
Warm and c old 67
A WARNING
-
Reduced visibi lity is dangerous and can
cause acc idents .
- For safe driving it is very important that
all windows be free of ice, snow and con­
densat ion.
- Comp letely fam il iarize yourse lf with the
proper use and funct ion of the heat ing
a nd ventilation system and especially
how to defog and defrost the w indows.
- Never use the windshield wiper/washer system in freez ing weathe r unt il you
have wa rmed the windshie ld first, using
the heating and ventilation system. The
washer sol ution may freeze on the wind­
shie ld and red uce visibi lity.
CJ) Note
- If you s uspect that the air conditioner
has been damaged, switch the system
off to avoid furt her damage and have it
inspected by a qualified dea lership .
- Repairs to the Audi air conditioner re­
quire specia l technical know ledge and
special tools. Contact an authorized Audi
dealer fo r ass istance.
@ For the sake of the envi ronment
By reducing the amount of f uel you use,
you also red uce the amount of pollutants
emitted into the air.
(D Tips
- Keep the air intake s lo ts ( in front of the
w indshield) free from ice, snow and de­
bris in order to maintain the proper func­
tion of the climate control system.
- The energy ma nagement system may
switch the seat heating* or rear window defroster off temporar ily. These systems
are available again as soon as the energy
balance has been restored .
- Air escapes through vents under the rear window. When plac ing items of cloth ing
on the luggage compartment cover, en­
sure that the openings are not covered.

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l The windshield and side windows are defrost­
ed or cleared of condensation as quickly as
possib le. The maximum amount of air flows
mainly from the vents be low the windshield.
Recirculation mode switches off. The tempera­
ture should be set to approximately 72 °F (22
°() .
The IAUTOI button switches the defroster off.
IQil REAR I Switching rear window heater
on/off
The rear window heater only operates when
the engine is running.
It switches off auto­
matica lly after a few minutes, depending on
the outside temperature.
To prevent the rear window heater from
switch ing off automatica lly, press and hold
the
!llill REARI button for more than 2 seconds.
This remains stored until the ignition is
sw itched off.
QJ Adjusting seat heating
Pressing the button switches the seat heating
on at the highest setting ( leve l 3) . The LEDs
indicate the temperature level. To reduce the
temperature, press the button again. To
switch the seat heating off, press the button repeatedly until the LE D turns off .
After 10 minutes, the seat heating automati­
cally switches from leve l 3 to level 2.
The seat heating for both outer rear seats * is
adj usted using the buttons in the center con­
sole.
Warm and cold 69
Air vents
You can open or close the center and outer
vents in the cockpit and the vents in the rear
center console using the ridged thumbwheels.
The levers adjust the direction of the airflow
from the vents.
The air temperature in the rear can be adjust­
ed so that it is warmer or co lder by turning
the knob to the red or blue area.
A WARNING
- Do not use the recirc ulation for extended
periods of time. The windows could fog
up since no fresh a ir can enter the vehi­
cle. If the windows fog up, press the air
recirc ulat ion button again immed iately
to switch off the air recirculation func­
tion or select defrost.
- Individuals with reduced sensitivity to
pa in or temperature could develop burns
when using the seat heating function . To
red uce the risk of injury, these individu­
a ls shou ld not use seat heating.
(D Note
To avoid damage to the heating elements
in the seats, do not kneel on the seats or
place heavy loads on a small area of the
seat.

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IAUTO I Switching automatic mode on
Automatic mode maintains a constant tem­
perature inside the vehicl e. Air temperature,
airflow and air distribution are controlled au­
tomatically.
Adjusting the temperature
Temperatures between 60 °F (+16 °C) and
84 °F ( +28 °C) can be set. Outsid e of this
range,
lo or hi wi ll appear in the climate con ­
trol system disp lay. At both of these settings,
the climate control system runs continuously
at maximum cooling or heating power. There
is no temperature regu lation.
~ Adjusting the airflow
You can adjust the airf low manually to suit
your needs . To have the airf low regulated au­
tomatically, press the
IAUTO j button.
li!J Adjusting the air distribution
You can manually select the vents where the
air will flow. To have the air distribution regu­
lated automatically, press the
IAUTOI button .
~I~* Adjusting seat heating/
ventilation*
Pressing the button switches the seat heat­
ing/ventilation on at the highest setting ( level
3). The LEDs indicate the heating/ventilation
level. To reduce the heating/venti lation, press
the button again. To switch the seat heating/
ventilation off, press the button repeatedly
until the LED turns off.
After 10 minutes, the seat heating automati­
cally switches from level 3 to level 2.
l The windshield and side windows are defrost­
ed or cleared of condensation as quickly as
possible. The maximum amount of air flows
mainly from the vents below the windshield.
Recirculation mode switches off. The tempera­
ture should be set to approximately 72 °F (22
°() .
The IAUTO I button switches the defroster off.
Warm and cold 71
liiii REAR! Switching rear window heater
on/off
The rear window heater only operates when
the engine is running. It switches off auto­ matically after 10 to 20 minutes, depending
o n th e outside temperature.
To prevent the rear window heater from
switching off automatically, press and ho ld
the
l liiil REARI button for more than 2 seconds.
This remains stored until the ign ition is
switched off .
I SYNC I Synchronization*
When synchronization is switched on, the
same settings are applied to both the driver
and front passenger, except for the seat heat­
ing/ventilation*. The rear zone is also
synchronized. Synchronization switches off
when the settings for the front passenger s ide
or rear are adjusted.
You can also switch synchronization on by pressing and holding a dial. For example, if
you press and hold the dial on the front pas­
senger side, the settings for that side are
transferred to the driver side. The same ap­
plies to the rear.
Air vents
You can open or close the center and outer
vents in the cockpit and the vents in the rear
cente r console and door pillars using the
ridged thumbwheels. The levers adjust the di­
rection of the airflow from the vents.
&_ WARNING
-=
-Do not use the recirc ulation for extended
periods of time . The windows could fog
up since no fresh air can enter the vehi­
cle. If the windows fog up, press the air recirculation butto n aga in immediately
to switch off the air recirculation func­
tion or se lect defrost.
- Individuals w ith reduced sensitivity to
pa in or temperature could deve lop burns
when using the seat heating function . To
red uce the risk of injur y, these individu-
als should not use seat heating. ..,.