heating AUDI A6 2011 Owners Manual

Instruments and controls
General illustration
(D Power window switches . . . . . . . . . . . . . . . . . . . . . . . . . 50
@ Door handle
@ Memory buttons (driver's seat) . . . . . . . . . . . . . . . . . . . 79
© Power locking switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
® Adjuster control for outside mirrors . . . . . . . . . . . . . . . 71
© Air outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
0 Light switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
@ Control lever for:
- Turn signal and high beam . . . . . . . . . . . . . . . . . . . . . 62
- Lane assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
® Control lever for:
- Cruise control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
- Adaptive Cruise Control . . . . . . . . . . . . . . . . . . . . . . . 119
@ Multifunction steering wheel with:
- Horn
- Driver 's airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
- Shift buttons ...... .. .. .... ........ .......... 151, 158
- Button for steering wheel heating . . . . . . . . . . . . . . . 104
@ Instrument cluster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
@ Switches for
- Windshield wiper/washer . . . . . . . . . . . . . . . . . . . . . . 66
- Trip computer ............... .. .. .. .. ....... .
@ Steering lock/ignition/starter switch ... .. ......... .
@ Buttons for
- resetting the trip odometer .......... .. .. .. ... .
- !CHECK] .... .... .. .... .. .... ............... .
-Instrument lighting . ....... .... .. .. .... .. .. . .
Controls and equip ­
ment Safety first
34
108
10
11
11
Instruments and controls
@ MMI Display, see separate manua l
@ Depending on equipment, switches for:
- Electronic Stabili zation Program (ESP)
- Side assist .. ... . .... .. .. .. .. .. .... .. .. .. ... .
- Emergency flashers .. .... .. .. .. ............. .
- Power sunshade . ... ... .. .. .. .. .... .. .. ... .. .
- Valet key function .. .. .. .. .... ....... ...... .. .
@ Buttons for
- Switching MMI display on/off
- Unlocking glove compartment
@ Glove compartment ...... .. .. .. .... .. ......... .
@ Front passenger 's airbag ............... ... .. .. . .
@ Climate controls ... .. .. .. .. .. .... .......... ... .
@ Ashtray .............. .. .... .. .. .. .. .... ..... .
@ Shift lever for automatic transmission
- 6-speed automatic transmission ....... .. ... ... .
- multitronic ® ....................... .. .... .. .
@ MMI contro l console, see separate manua l
@ Storage with cupholder ... .. ... .............. .. .
@) Electromechanical parking brake .............. .. . .
@ ISTAR T]-/ISTOP] button ........ .. ... .......... .
@ Adjustable steering wheel, depending on equipment :
- mechanical ............. .. .. .. ............. .
- electrical . ... ... .. .. .. .. .. .. .. .. .. ....... .. .
@ Data Link Connector for On Board Diagnostics (OBD II)
@ Hood release .......... .. .... .. .. .. .. ......... .
@ Switch for
unlocking the fuel fi ller door .............. .... .
- unlocking the trunk lid . .. ........ .. ... .. .. .. . .
Vehicle care
242
137
61
65
40
94
94
201
98
91
146
154
89
113
110
106
106 23
278
275
46 •
Technical data

Warm and cold
Warm and cold
Climate control
Description
The air conditioner is fully automatic and is designed to
maintain a comfortable and uniform climate inside the
vehicle.
We recommend the following settings:
- Set the temperature to 75 °F (+23 °C).
- Press the [AUTO] button.
With this setting, you attain maximum comfort in the least amount
of time. Change this setting , as desired, to meet your personal needs.
The climate controls are a combination of heating, ventilation and cooling systems, which automatically reduce humidity and cool the
air inside your vehicle.
The air temperature, air flow and air distribution are automatically regulated to achieve and maintain the desired passenger compart­
ment temperature as quickly as possible .
The system automatically compensates for changes in outside
temperature and for the intensity of the sunlight entering the
vehicle. We recommend you use the
Automatic mode=> page 99 for
year-round comfort .
Please note the following:
Turn on the air conditioner to reduce humidity in the vehicle. This also
prevents the windows from fogging up .
When the outside temperature is high and the air is very humid,
condensation from the evaporator may drip under the vehicle. This is
normal and does not indicate a leak. If the outside temperature
is low, the fan normally only switches to a
higher speed once the engine coolant has warmed up sufficiently .
The air conditioner temporarily switches off when you drive off from
a standstill using full throttle to save engine power.
The compressor also switches off if the coolant temperature is too
high, so that the engine can be adequately cooled under extreme
loads.
Air pollutants filter
The air pollutants filter (a combined particle filter and activated char­
coal filter) reduces or prevents outside air pollution (dust, or pollen)
from entering the vehicle. The air is also filtered in air recirculation
mode.
The air pollutants filter must be changed at the intervals specified in
your Warranty
& Maintenance booklet, so that the air conditioner can
properly work .
If you drive your vehicle in an area with high air pollution, the filter
may need to be changed more frequently than specified in your Audi
Warranty
& Maintenance booklet. If in doubt, ask your authorized
Audi Service Advisor for advice .
Key coded settings
The air conditioner settings selected are automatically stored and
assigned to the key being used. When the vehicle is started, the air
conditioner automatically selects the settings assigned to that key.
This way every driver will maintain his/her own personal settings and
does not have to reset them manually.
If a different driver uses your key and changes the air conditioner
settings, the latest adjustments will erase and replace the settings
you have stored . _.,

En ergy management
To prevent the ba ttery from be ing discharged and to resto re the
balance of energy, compone nts which req uire la rge amou nts of
ene rgy are temporari ly c ut back or switched off~
page 249. Heating
systems in part icu lar requ ire a g reat dea l of energy . If you not ice, fo r
example, that the seat * or rear w indow heating is not heating, they
have been temporari ly cut back or switch ed off by
energy manage·
ment .
These systems are available again as soon as the energy
balance has been res tored.
& WARNING
Reduced vi sibil ity i s dangerous and can cause accidents .
• For safe driving it i s very important that all window s be free of
ice, snow and condensation.
• Completely familiarize yourself with the proper use and func­
tion of the heating and ventilation system and especially how to
defog and defrost the windows.
• Never use the windshield w iper/washer system in freezing
weather until you ha ve warmed the wind shield first , using the
heating and ventilation system . The washer solut ion may freeze
on the wind shield and reduce vi sibility.
0 Note
• If you s uspe ct tha t the clima te cont ro l system has been damaged,
switch the system off to avoid furthe r damages, and have i t in sp ected
by a q ua lified dealersh ip.
• Repa irs to the A ud i a ir cond it ioner require special tec hnical knowl­
edge an d special tools. Cont act an au thor ized A udi dealer for assis ­
t ance .
Controls and equip ­
ment Safety first
Warm and cold
(I] Tips
•
Keep the air inta ke s lots (in front of the w indshield) free from ice,
snow and debris in orde r to maintai n the proper function of the
cl ima te contro l system.
• Th e air flowing out of the vents and throughout the vehicle's
e n tire in ter ior is discharged a t th e rea r of t he vehicle. Make sure that
the o utlet s lots are not covered by cloth ing, etc .
• Climate cont rol works most effectively i f the w indows and the
sunroof * are closed . However, if the interior of a par ke d vehicle is
extremely hot from t he sun's rays, briefly opening the wi ndows can
speed up t he cooling process .•
Vehicle care Technical data

Automatic mod e [AUTO j
The automatic mode is the standard setting for all
seasons .
- Select temperature between 60 °F (+16 °C) and 84 °F
(+28 °().
- Press the [AUTO] button.
Automatic operation ensures constant temperatures in the interior
and dehumidifies the air inside the vehicle. Air temperature, vol ume
and distribution are controlled automatically to reach or maintain the
desired interior temperature as quickly as possib le . Fl uctuations in
exterior temperature and the effects of temperature from the pos i­
tion of the sun are compensated for automatically.
T his operating mode works only in the adjustable temperature range,
from 60
°F ( + 16 °() to 84 °F (+28 °(). If a temperature below 60 °F
(+ 16 °() is selected , LO appea rs in the display. At tempe rat ures above
84
°F (+28 °(), H I is displayed. A t both extreme set tings, climate
control runs continuously at max imum cool ing or heat ing power.
There is no temperature regulation .•
Turning on and off [ ON/OFF]
Turning the air conditioning on
Press the [ON/OFF] button, or
- Press the
[AUTO] button.
Turning the air conditioning off
- Press the [ ON/OFF] button to switch the air conditioning
off and to block the air supply from the outside.
The air conditioner turns back on when you press the t e m pe rat ure
re gulat or
or one of the buttons.
Controls and equip ­
ment Safety first
W
arm and cold
(I] Tip s
With the ignition turned off, you can activate the residua l heat func­
tion by pressing the [ ON/OFF) button. The residual heat from the
coo lant can be used to heat the vehicle interio r. •
Swi tching air cooling on /off [AC]
Switching off the compressor which operates the air
cooling system saves fuel.
- To switch the air cooling system on/off, press the [AC]
button.
When the air cooling system is switched on, the diode in the button
is lit and the heating and ventilation are regulated automat ically .
Please note that the interior temperature cannot be lower than the
outs ide temperature when the air cooling system is switched off. The
blower does not cool or dehumidify the air in the interior. It is there­
fore possible that the windows mist up. •
Setting the temperature
Separate temperatures can be selected for the driver's
and front passenger's side.
Rotate the regulator to the left to reduce the tempera­
ture, or to the right to increase the temperature .
The selected temperature appears on the climate control disp lay. The
temperature setting will also appear for a few seconds in the MMI
display. •
Vehicle care Technical data

_________________________________________________ W_ a_ r_m _ a_ n_d_ c_ o_ ld _ ___.lfll
A pp lies to vehicl es: wi th ele ctr ically heated s eats
Heated front seats Q)
The seat cushion and the seat back of the front seats can
be heated electrically.
- Press the~ button.
- Rotate the regulator to the desired setting.
In position O the heating for the seats is turned off. The range of
adjustment is between
1 and 6.
The setting will appear for a few seconds in the MMI display.
(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 .•
Ap plies to vehicl es: with he ated r ea r se ats
Heated rear seats
The seat cushions and seat backs of the two outer rear
seats can be heated electrically .
Contro ls a nd e quip ­
m en t
Fig . 96 Center console
rear: Heated seats
Vehicle OP-eration
-Rotate the thumb wheel @to turn on and adjust the
heating for the left rear seat .
- Rotate the thumb wheel@ to turn on and adjust the
heating for the right rear seat.
In position O the heating for the seats is turned off . The range of
adjustment is between
1 and 6 .
Th e rear seat heating opera tes only when the seats are occupied. If
the rear seat is not occupied, you should turn the heating for the
seats off to prevent unintended heating of the seating surfaces .
(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 .
[I) Tips
Please note that the weight of objects placed on the seat will also be
detected. This weight may be enough to cause the seat h eater to turn
on .•
Vehicle care Do-it-yourselt service iTechnical data

llll..__w __ a _r _m __ a_n _ d_ c_ o_ ld ________________________________________________ _
Applie s to veh icles : wi th s teering w heel he atin g
Steering wheel heating~
The steering wheel can be heated electrically.
Fig. 97 Stee ring
wheel : button for
st eeri ng wheel heat ing
- Press the(~] button to turn the steering wheel heating on
and off =>fig. 97. The message
Steering whee l heat ing on ! or
S teer ing whee l heat ing off! appears in the instrument
cluster display .
A nearly constant temperature is maintained when the steer ing
wheel heating is switched on.
T he last setting selected for the steering wheel heating (on or off) is
automatically saved when the vehicle is shut off and is assigned to the
remote key.•
Basic settings
General
The basic climate control settings can be adjusted in the
MMI.
- Select: Function button (CAR]> Control button AC.
The following functions can be selected:
• Auto recirculat .
~ page 104
• Synchronizat ion~ page 105
• Center vents~ page 105 •
Automatic recirculation mode
An air quality sensor detects increased concentrations of
pollutants in the outside air and automatically switches
to recirculation mode.
We recommend that you always keep automatic air recirculation ON
to prevent polluted outside air from entering the vehicle interior.
If the air qu alit y sen sor located in the air conditioning system detects
polluted outside air, the sensor decides whether the air pollution can
be reduced by the factory -installed pollutant filter or whethe r it is
necessary to switch to air recirculation. With heavy concentrations of
poll utants, the a ir condit ion ing system is switched automatically to
recirculation mode and the supply of outside air is blocked . As soon
as the concen tration of pollutants in the o utside air drops, fresh air is
supplied to the vehicle in terior again .
In the event that the windows fog up during automatic air recircula­
tion, you must press the® button immed iately.
Under certain operating conditions, automatic a ir recirculation is
switched off automatically. With o utside temperatures below about
SO °F ( +10 °(), automatic air recirculation is limited to 30 seconds .
With outside temperatures below about 30 °F (-1 °C) and the cooling
system is switched off, the automatic air recirculation is limited to 15
seconds. •

_________________________________________________ w __ a _r _m __ a_n _d_ c_ o_ ld __ _
Synchronization
One climate control setting for the passenger's and
driver's seats .
After Synchronization is set to on, all of the subsequent climate
control settings (except for seat heating*) for the driver are trans­
ferred to the front passenger.
Synchronization is cance led when settings are adjusted on the front
passenger's side .•
Center vents
The temperature of the air leaving the center vents can be
changed to differ from the temperature setting .
-Select: Function button !CAR]> Control button AC >
Cente r ve nts .
T he air flow com ing from the center vents can be adjusted to be
colder or warmer than the selected set temperature.
In this way you have the opportunity to have the air flow from the
center vents a little warmer or cooler, depending on the time of year .
A little cooler in the summer and a litt le warmer in the winter. •
Controls and equip­
ment Safety first
Vehicle care Technical data

Intelligent technology
'-----------------------------------------------
Driv ing off
When driving off, always be sure to keep road conditions in mind as
you acce lerate. If one d rive w heel spins because it is on a surface with
less grip, gradua lly inc rease the press ure on the accelerator pedal
un til the car sta rts to move .
Overheating of brakes
To prevent the disc brake of the braked wheel from overheating if
subjected to excessive loads o n this whee l, t he EDL cuts out tem po­
ra rily. The vehicle rema ins operat iona l a nd be haves in the same way
as a ve hicle wit hout EDL.
As soon as the bra ke has coo le d down , ED L swit ches on again au to­
matically.
& WARNING
• When accelerating on slippery surfaces , such as on i ce or snow ,
alway s be careful when depre ssing the accelerator pedal. Even
with the EDL work ing , the drive wheels can spin and reduce your
ability to control your car. Risk of crash!
• The increased safety afforded by EDL does not mean that you
can take safety ri sks . Always adapt your driving style to the road
conditions and traffic situation.
(I) Tips
If a fa ult occurs i n the ABS, the EDL is also not f unct io ni ng . This is
indic ated by t he A BS war ning ligh t=>
page 17.
Anti-Slip Regulation System (ASR)
The Anti- S lip Re gula tio n Sy stem preven ts the dr iven
w heels from spin ning w hen t he car is accelerating .
General notes
The Anti-S lip Reg ulation Sys tem (AS R) is in tegr ate d in the ele ctroni c
stabilization program (ESP) . When the ve hicle starts up and acceler­
at es, the whee ls are p reven ted from sp inning by adjust ing t he engine
power to match the amount of grip avai lable from the road surface.
How the system works
ASR performs automatically, i.e. witho ut the driver 's intervent ion.
W ith the a id of t he ABS sensors=>
page 246, ASR moni to rs the speed
of the dr iven wheels. If the wheels start to spin , th e engine torque is
redu ced a utomatically unti l the t ires find enou gh gr ip to lock onto
the road surface. T he system is active across the entire speed range .
Th e ASR works in conjunction with the ABS. If a malfunction sho uld
occ ur in th e ABS, th e AS R w ill also be out of action.
Activating
The ESP is automatically activated whe n the engine is started and it
performs a se lf-test. You can act ivate a deact ivate d ASR if required by
press ing the=>
pag e 242, fig. 201 button. Whe n it is act ivated, t he
message
ESP/ASR on appears briefly in t he disp lay. Vehicles with
front-wheel d rive a dea ct iva te d ASR a uto mat icall y re-ac tiva tes i tself
at a speed of 40 mp h (70 km/h) .
Deactivating
You can deact ivate t he ASR if required by pressing t he button (for less
t han 3 se conds) =>
page 242, fig . 2 0 1. Wi th the ASR dea ct ivated, the
ESP check light comes on, see=>
page 14. The message ASR off
appe ars i n the di sp la y as wel l. On vehicles wi th fro nt-whee l dr ive:
deactivation is possible only up to 30 mph (SO km/h) for safety
reas ons. Vehi cles w ith all -wheel drive: the AS R can be deac tivated at
any speed. ..

Intelligent technology
'-------------------------------------------------
It is in precisely these situations that you will notice energy manage­
ment actively regulating the distribution of energy.
Vehicle stands for an extended period
If you do not drive your vehicle over a period of several days or weeks,
electrical components are gradually cut back or switched off. This
red uces energy consumption and maintains starting capability over a
longer period.
Take into consideration that when you unlock your vehicle, some
convenience functions, such as the remote key or power seat adjust­
ment, may not be avai lab le. The convenience functions wi ll be ava il­
able again when you turn on the ignition and start the engine.
With the engine turned off
If you listen to the radio, for example, with the engine turned off o r
use other MMI functions, the battery is being discharged.
If starting capability is jeopard ized due to energy consumption, the
following warning appears in the MMI display:
Please start engine, otherwise system will switch off in
3 minutes .
The warning indicates that the system will be turned off automati­
cally after 3 minutes. If you wis h to continue using the funct ions, you
have to start the engine.
With the engine running
Although electrica l energy is generated when the vehicle is being
dr iven, the battery can become discharged. This happens mostly
when little energy is being generated and a great deal consumed and
the battery's state of charge is not optimal.
To bring the energy balance back into equilibrium, consumers which
req uire especially large amounts of energy are temporarily cut back
or switched off . H eating systems in particular require a great deal of
energy. If you notice, for example, that the heated seats* or the
heated rear window are not heating, they have been temporarily cut
back or switched off. These systems will be ava ilable again as soon as
the energy ba lance has been restored. You will also
notice that engine idle speed has been increased
slightly. This is normal and not a cause for concern. By increasing
engine idle speed the addit ional energy required is generated and the
battery is charged. •
Driver notification in the instrument
cluster display
If battery powe r drops into the range where it can limit the ability of
the engine to start, this is shown in the instrument cluster display
w ith the following driver message:
1 Low battery charge: battery will be charged while driving
This notification reminds you that the starting capability of the
eng ine may be limited. As soon as you start driving again, the battery
will be recharged and the notification will go out.
Driver notification appears and goes out again
If this driver notification appears after the ignition is turned on or
wh ile driving and it goes out again after a while, the battery has been
adequately recharged.
Driver notification appears and does not go out
again
If this dr iver not ificat ion appears after the ign it ion is turned on or
whi le driving and does not go out again, the battery's state of charge
is not in the optimal range. Starting ability is restricted . Have the
battery checked as soon as possible at a dealership.

lffll __ C_h_ e_c _k _i_n -=g ,.,__ a_n_ d_ f_ i_ l _li _n _,g:,_ __________________________________________ _
Engine cooling system
Coolant
The engine coolant performs two functions: it keeps the
engine from o ve rheat ing and it prote cts the engine from
free zing in the winter .
The cooling system is sealed and genera lly requ ires little attention .
Th e cooling system has been fi lled a t the factory w it h a permanent
coo lant which does not need to be changed. The coolant consists of a
mixture of water and the man ufacturer's glycol-basedcoo lant add i­
tive Gl2++ a ntifreeze with ant i corrosion additives (50% for USA
mode ls; 60% for Canadian mode ls). This mixture bot h assures the
necessary frost protec tion and p rotects metal components i n the
engine's cooling system from corrosion and scaling . It a lso ra ises the
boiling point of the coolant.
Do not reduce the concentration of the coolant in the summer by
adding p lai n water . The proport ion of coolant additive must be at
least 50 % but not more than 60 % to maintain ant ifreeze protection
and coo ling efficiency. If the coolant frost protect ion is too low, the
coo lant co uld freeze and damage the veh icle heating and eng ine
cooling system .
For year-ro und d riving, antifreeze is added at t he factory for temper­
atures down to:
• - 31°F( -35°C)USA
• - 40 °F ( -40 °C) Canada .
You can mix the G12 ++ coo lant additive with other add it ives (G12 + or
G 12) . Always check with yo ur a utho rized Aud i dea ler .
& WARNING
Before you check anything in the engine compartment, always
read and heed all WARNINGS=>
& in "Working in the engine
compartment " on
page 279.
0 Note
• Before winter sets in, have the coolant checked to see if the
coo lant additive in you r vehicle is s ufficient to meet the climate
condi tions. This is especially important if you live in a region where
the winter is extreme ly cold. If necessary, increase the proport ion of
c oo lan t add it ive to 60%.
• When adding coolant additive to your cooling system, remember:
- We recommend using only coo lant add it ive G 12++ (check the
label) for your vehicle . This coolant additive is available at autho­
r ized A ud i deale rs. Othe r ty pes of antifreeze can s ignifica ntly
reduce corrosion protection. The resulting corrosion can cause a
loss o f coolant and serious engine damage .
• Do not add any type of radiator leak sealant to you r vehicle's
eng ine coolant. Adding rad iator repair fl uid may adversely affect the
function and performa nce of your coo ling system and could resu lt in
d a mage not covered by your New Vehicle Limi ted W arranty. •
Checking the engine coolant level
The engine coolant level can be checked with a quick
glance .
Fig. 211 En gine
compa rtm ent : C oolant
ex pa nsio n tank ..