2012 AUDI A6 Engine heat

l The windshield and s ide windows are defrost­
ed or cleared of condensation as quickly as possib le. The maximum amount of air flows
mainly from th e vents be low the windshield.
Recirculation mode switches off .
The
IAU TO I button switches the defroster off.
ICi@ REAR I Switching rear window heate r
on /off
The rear w indow 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 w indow heater from
switching off automatically, press and hold
the ~ button for more than 2 seconds. This
remains stored unti l the ignition is switched
off.
[il A dj ustin g seat heat ing
Pressing the button swi tches the seat heating
on at the highest sett ing ( leve l 3) . The LEDs
indicate the temperature leve l. To reduce the
temp erature, press the button again. To
switch the seat heating off, press the button
repeatedly unt il the LED 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 sea ts* is
ad justed using the buttons in the cente r con­
sole.
Warm and c old 65
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 l evers adjust the dir ection of the airflow
from the vents.
T he air temperature in the rear can be adjust­
ed so that it is warmer or co lder by turning
the knob to the r ed or blue area.
A WARNING
- Do not use this setting for extended peri­
ods of time. The w indows could fog up
since no fresh air can enter the vehicle . If
the windows fog up, press the air rec ircu ­
lation button again immediate ly to
sw itch off the air reci rcu lation function
or select defrost .
- I ndividuals w ith reduced sensitivity to
pa in or tempera ture cou ld deve lop burns
when using the seat heating function . To
red uce the risk of i nju ry, these indiv idu­
a ls sho uld not use seat heating.
(D Note
To avoid damage to the heat ing e lements
i n the sea ts, do not kneel on the seats or
place heavy loads on a small area of the
seat.

IAUTO I Switching automatic mode on
Automatic mode mainta ins a constant tem­
perature inside the vehicle . Air temperature,
airflow and air distribution are controlled au­
tomatically.
Adjusting the temperature
Temperatu res between 60 °F (+16 °C) and
84 °F ( +28 °C) can be set. O uts ide 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 regulation.
~ Adjusting the airflow
You can adjust the airf low manually to suit
your needs . To have the airf low regulated au­
tomatically, press the
I AU TOj button.
li!J Adjusting the air distribution
You can manually se lect 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.
I@ FRONT I Switch the defroster on/off
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.
Recircula tion mode switches off.
The
IAU TOI button switches the defroster off.
Warm and cold 67
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
on the outside temperature.
To prevent the rear window heater from
switching off automatically, press and ho ld
the~ button for more than 2 seconds. This
remains stored until the ignition 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
o r r ear 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 this setting for extended peri-
ods of time . The windows could fog up
since no fresh air can enter the vehicle. If
the windows fog up, press the air recircu­
lation button again immediately to
sw itch off the air recircu lation function
or select defrost.
- Individuals w ith reduced sensitivity to
pa in or temperature cou ld 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 . ..,.

By pressing the I START ENGINE STOPI button
without depressing the brake peda l, the igni­
tion is on and switched
off by pressing it
again.
After a cold engine is started, the re may be a
brief period of increased noise because oil
pressure must first bui ld up in the hydraulic
va lve adjusters. This is normal and not a cause
for concern.
If the engine should not start immediately,
the starting process is automatically stopped
after a short time. Repeat starting procedure.
Driv er m essag e in th e in strument clu ste r
disp lay
Pr ess br ak e p ed al to start engin e
This message appears if you press the
I START ENGINE STOP ! button to start the en ­
g ine and do not depress the brake peda l. The
engine can on ly be started if the brake pedal
is depressed.
!!I C o nv enience ke y: I s ke y not in th e vehi­
cle ?
This message appea rs a long with the !!I sym­
bol if the maste r key is removed from the ve­
hicle with the engine r unning . It is intended
to remind you (e .g . when changing drivers)
not to continue the journey witho ut the mas­
ter key.
I f the master key is no longer in the vehicle,
you cannot sw itch on the ignition after stop­
ping the engine and yo u also cannot start the
engine again. Moreover, you cannot lock the
veh icle from the outside with the key.
Shift to P , other wis e vehicle c an roll away.
Doo rs do not lock if le ver i s not in P.
This message appears for sa fety reasons
a long with an audib le warning tone if the
P
selector lever position is not engaged when
stopping the eng ine with the
I STAR T ENGINE STOP ! button. Select the P se­
lector lever posit ion. Otherwise the veh icle
could roll and it can not be locked .
On th e ro ad 71
Ke y not r ecogni sed . Hold bac k of ke y again st
ma rked area. See owne r's manual.
If the indica tor l ight turns on and this mes­
sage appears, there is a malf unct ion
¢ page 72.
Steering lock
The steering locks when you turn the engine
off using the I START ENGINE STOP ! button
and open the d river's doo r. T he locked steer ­
i ng helps p revent vehicle theft.
& WARNING ~
- Never allow the engine to run in confined
spaces -danger of asphyxiation .
- Never turn
off the engine un til the vehi­
cle has come to a complete stop .
- The brake booster and power steering
only work when the eng ine is r unning . If
the engine is
off, you have to use more
force when steering or braking. Because
you cannot steer and brake as you usual­ ly would, this cou ld lead to crashes and
serious injuries.
(CT) Note
- Avo id h igh engine rpm, full thrott le and
heavy engine loads until the engine has
reached operating temperature -other­
w ise you risk engine damage .
- The engine cannot be started by pushing
or towing the vehicle.
- If the engine has been under heavy load
for an extended per iod, heat builds up in
the engine compa rtment afte r the e n­
gine is switched
off -there is a risk of
damaging the engine. Allow the engine
to run at idle fo r about 2 minutes before
switching it
off.
(D Tips
- If you open the d river 's doo r with the ig­
nition on, a buz ze r sounds and the mes­
sage
Ignition i s on appears in the instr u­
ment cl uste r display . Sw itch the ignition
off . Ill-

7 2 On the road
-If yo u leave the vehicle wi th the ignition
switched on, the ignition will switch off
after a certa in period of time . Please
note that e lectrica l equipment such as
exter ior lights w ill switch off as well
when that happens .
Stopping the engine
.,. Bring your vehicle to a complete stop .
.,. Move the selector lever to the
P o r N posi­
t ion.
.,. Press the
!S TAR T ENGINE S TOPI button
9 page 70, fig. 72 .
Emergency off
If necessary, the eng ine can be sw itched off
with the selector leve r in the
R or D /S posi­
tion . The engine stops if you press the
I START ENGINE STOP! button at speeds below
6 mph (10 km/h) and press the brake pedal.
A WARNING
- Never turn off the engine unti l the vehi ­
cle has come to a complete stop.
- The brake booster and power steering
only work when the engine is running. If
the engine is off, you have to use more
force when steering or braking. Because
you cannot steer and brake as you usua l­
ly wou ld, this could lead to crashes and
serious injur ies.
- For safety reasons, you should always
park your vehicle with the selector lever
in P. Othe rwise, the veh icle could inad­
vertent ly roll away.
- After the engi ne has been switched off,
the radiator fan can continue to run fo r
up to 10 m in utes - even with the ig nitio n
swit ched off.
It can a lso switch on ag ain
afte r some time if the coolant tempera"
t u re rises as the result of a heat buildup
or if the engine is hot and the engine compartment is addit ionally heated by
the sun's rays.
(D Note
Do not stop the eng ine immediately after
hard or extended driving . Keep the engine
running for approximate ly two minutes to
prevent excessive heat bu ild-up .
Starting the engine if there is a
malfunction
It may not be possible to start the engine un ­
der certain circumstances, for example if the battery in the vehicle key is drained, if inter­
ference is affe cted the key or if there is a sys­
tem malfunction.
F ig. 73 Center co nsole/master key: start ing the eng ine
i f there is a malfunct io n
Requ irement: The message Key not r ecog­
nized . H old back of key ag ainst marked are a.
See owner 's manual.
must appear and the in­
dicator light
m must swi tch on.
.,. Ho ld the mas ter key vertically in the loca­
tion indicated
y >l) 9 fig. 73.
.,. Press t he b rake pedal ~ .&. in Starting the
engine on page 71 .
... Press the ..., IS"'T :,-,A -,,R "'T ,.., E"" N...,..,,, G""IN ,-,-: E-,s"'T ,...,O ,.., P,..,I button .
The engine wi ll start.
.,. Dr ive to your authorized Audi dea ler imme­
diately to have the malfunction corrected.
(D Tips
You can v iew the message again by press ­
ing the
I STAR T ENGINE STOP ! button.

76 On the road
Cruise control
Switching on
Applies to vehicles: wit h crui se contro l
The cruise control system makes it possible to
drive at a constant speed starting at 20 mph
(30 km/h).
0
f
~
0
Fig. 75 Control lever with set b utto n
Fig. 76 Display: Selected speed
• Pull the lever to position @~ fig. 75 to
switch the system on.
• Drive at the speed you wish to set.
• Press button @to set that speed.
The stored speed and the indicator light
18;\0~1~ (US models)/ . (Canadian models) ap ­
pear in the instrument cluster display
~ fig. 76. The display may vary, depending on
the type of display in your vehicle . T he indica­
tor light
ll in the instrument cluster also illu­
minates.
This information is also shown briefly in the
Head-up Display* .
The speed is kept constant via an engine out­
put adjustment or active brake intervention.
A WARNING
-- Always pay attention to traffic even when
the cruise control is switched on. You are always responsible for your speed and
the distance between your vehicle and
other veh icles.
- For safety reasons, the cruise contro l
should not be used in the city, in stop­
and-go traffic , on twisting roads and
when road condit ions are poor (such as
ice, fog, gravel, heavy rain and hydro­
p laning) - risk of accident.
- Turn off the cruise control temporarily
when entering turn lanes, highway exit
lanes or in construction zones.
- Please note that inadvertently "resting"
your foot on the accelerator pedal causes the cruise control not to brake. This is
because the cruise control is overridden
by the driver's acceleration.
- If a brake system malfunction such as
overheating occurs when the cruise con­
trol system is switched on, the braking
function in the system may be switched
off. The other cruise control functions re­
main active as long as the indicator light
mmJI (US models)/ . (Canadian mod­
els) is on.
(D Tips
The brake lights illuminate as soon as the
brakes decelerate automatically .
Changing speed
Applies to vehicles: w ith cruise co ntrol
• Press lever in the 0 or 0 direct ion
~ page 76, fig. 75 to increase or decrease
your speed .
• Release the lever to save that speed.
Change speed in increments of 1 mph (1 km/
h) by lightly pressing the lever . If you keep the
lever pressed down, you will alter your speed
in 5 mph (10 km/h) increments.
You can also press the accelerator pedal down
to increase your speed, e.g . if you want to .,..

120 Homelink®
Homelink®
Universal remote
control
General information
Applies to vehicles: with Home link® universal remote
control
The Homelink universal remote control can
be programmed with hand-held transmitters
from existing equipment.
Using the Homelink universal remote control,
you can operate equipment such as garage
doors, property gates and house lights from
ins ide your vehicle .
Using the Homelink universal remote control,
you can replace up to three separate hand­
held transmitters for equipment on your
property with just one universal remote con­
trol. Most of these transmitters are used to
ope rate ga rage doo rs and property gates. The
individual transmitters are programmed at
the front bumper. That is where the control
module is located.
The transmitters must be programmed first in
order to operate systems using the Homelink
universal remote control.
.&_ WARNING
-
-Never use the Homelink ® transmitter
with any garage door opener that does have not the safety stop and reverse fea­
ture as requ ired by federal safety stand­
ards. This includes any garage door open­
er model manufactured before April 1, 1982.
- A garage door opener which cannot de­
tect an object, signa ling the door to stop
and reverse does not meet current feder­
al safety standards . Using a garage door
opener witho ut these features increases
risk of serious injury or death.
- For safety reasons never release the
parking brake or start the engine while
anyone is standing in front of the vehicle .
- A garage door or an estate gate may
sometimes be set in motion when the Homelink
® remote control is being pro­
grammed. If the device is repeatedly ac­
tivated, this can overstrain motor and
damage its electr ical components - an
overheated motor is a fire hazard!
- To avoid possible injuries or property
damage, please always make absolutely
certain that no persons or objects are lo­
cated in the range of motion of any
equ ipment being operated.
(D Tips
- If you would like additional information
on the Homelink ® Universal Transceiver,
Homelink compatible products, or to
purchase other accessories such as the
Homelink® Light ing Package, please
contact Homelink at 1-800 -355-3515 o r
on the Internet at www.homelink .com.
- For Declaration of Comp liance to United
States FCC and Industry Canada regula­
tions¢
page 281.

190 Intelligent technology
ESP includes and/or works together with the
anti-lock brake system (ABS), brake assist sys ­
tem, anti-slip regulation (ASR) , e lectronic dif­
f erential lock ( ED L) and e lectronic interax le
d ifferential lock* . ESP is switched on all the
time . In certain situat ions when you need less
traction , you can switch off ASR by pressing
the button
I!] c:;, page 191 , fig. 164 . Be sure
to switch ASR on again whe n you no longe r
need less tra ct ion.
Anti-lock braking system (ABS )
ABS prevents the wheels from locking up
when braking. The vehicle can still be steered
even du ring hard b rak ing . Apply steady p res­
sure to the brake pedal. Do no t pu mp the ped­
a l. A puls ing in the b ra ke ped al ind icates that
the system is he lp ing you to b rake the vehicle .
Brake assist system
The brake assist system can decrease brak ing
d ista nce. It increases braking power w hen the
d river p resses the brake pedal quic kly in eme r­
gen cy situa tions. You mus t press and hold the
b rake peda l until the si tuation is over. In veh i­
cles with adaptive cruise control*, the brake
assist system is more sensitive if the distance
detected to the vehicle ahead is too smal l.
Anti-slip r egulation (ASR)
ASR reduces engine power when the d rive
wheels begin to spin and adapts the fo rce to
the road conditions. This makes it easier to
start, accelerat e and drive up hills .
Electronic differential lock (EDL )
The ED L brakes wheels that are spinn ing and
transfers the drive power to the o ther d rive
wheel or whee ls i f th e vehi cle is equipped with
a ll-whee l drive *. This function is available up
to about 7S mph (120 km/h).
I n extreme cases, EDL automat ica lly switches
off to help keep the brake on the braked whee l
from overheating . EDL wi ll switch on again au­
tomatically when conditions have returned to
normal.
Electronic interaxle differential lock */
selective wheel torque control*
The electronic interaxle differential lock (front
whee l drive) or the se lective whee l torque
control (all-wheel dr ive) operates when d riv­
ing t hrough curves . The front wheel on the in­
s ide of the curve or both whee ls on the inside
of the curve a re b raked select ively as needed .
T his m inimizes sliding in th e front wheels and
allows for mo re p reci se d rivi ng throug h
c ur ves . The appl icable system may not acti­
vate when dr iving in we t or snowy conditions.
_& WARNING ~
- ESP , ABS, AS R, E DL and the e lectronic in­
terax le d iffe rential lock function* cannot
overcome the laws of physics . This is es­
pecially important on slippery or wet
roads. If the systems begin acti ng to sta­
b ili ze your ve hicle , you s hould immed i­
ately c hange yo ur speed to match the
road and traffic cond itions. Do not let
t he incre ased safety provide d by the se
systems tempt you to take risks. Do ing
so will increase the r is k of a loss of vehi­
cle control, collision and serious persona l
in jur ies.
-Always adapt your speed to road, traffic and weather conditions . The risk of los­
ing control of the vehicle increases when
driving too fast, espec ially through
curves and o n slippery or wet roads, and
when dr iv ing too close to vehicles up
ahead . ESP, ABS, the brake ass ist system,
E DL, ASR and the e lectronic interax le dif­
fe ren tial lo ck fu nction * can not prevent
coll is ions.
- Always ac celerate with spe cial care on
even, smooth s urfaces such as tho se th at
ar e we t or covered with i ce and snow.
The drive wheels can spin eve n with
these assistance systems t hat cannot al­
ways he lp to red uce the risk of loss of ve -
hicle control. ..,.

192 Intelligent technology
freezing conditions ice) on the brake pads. A
few careful brake applications should dry off
the brake pads or remove any ice coatings.
The effectiveness of the brakes can be reduced
when the vehicle is driven on a salt-covered
road and the brakes are not used . Here too
,
you should clean off accumulated salt coating
from brake discs and pads with a few careful
applications of the brake
Q & .
Corrosion
There may be a tendency for dirt to build up
on the brake pads and corrosion to form on
the discs if the car is not driven regularly or
only for short trips with little use of the brakes.
If the brakes are not used frequently, or if cor­
rosion has formed on the discs, it is advisable
to clean off the pads and discs by braking
f irmly a few times from a moderately high
speed
Q & .
Faults in the brake system
If you should notice a sudden increase in
brake pedal travel, then one of the two brake
circuits may have failed
Q & .
Low brake fluid level
Malfunctions can occur in the brake system if
the brake fluid level is too low. The brake fluid
level is monitored electronically.
Brake booster
The brake booster works with vacuum pres­
sure which is created only when the engine is
running
Q & .
Brake lining wear status
Brake lining wear may be checked by visual in­
spection of the condition of the brake pads
through the openings in the wheel. If neces­
sary, the wheel may be removed for this in­
spection
Q page 258, Changing a wheel.
WARNING
- You should perform braking maneuvers
for the purpose of cleaning the brake system only if road conditions permit.
Other road users must not be put at risk -
you may cause an accident!
- Before descending a steep grade, reduce
speed and shift transmission into a lower
gear or lower driving range. Do not ride
the brakes or hold the pedal down too
long or too often . This could cause the
brakes to get hot and diminish braking
efficiency.
- Do not "ride the brakes" by resting your
foot on the pedal when you do not intend
to brake. This may cause the brakes to
overheat, premature wear and increased
stopping distance.
- Under certain climatic and operating
conditions such as passing through wa­
ter, driving in heavy rain or after washing
the vehicle, the effectiveness of the brakes can be reduced. In winter, ice can
accumulate on the brake pads, linings,
discs and drums. Carefully apply brakes
for a test. Brakes will dry and ice coat­
ings will be cleaned off after a few care­
ful brake applications.
- Driving for an extended period of time on
salt-covered roads without using your brakes can also affect braking efficiency.
Clean off accumulated salt coating from
brake discs and pads with a few careful
brake applications.
- If you damage the front spoiler, or if you
install a different spoiler, be sure the air
flow to the front brakes is not obstruct­
ed. Otherwise the brake system could
overheat reducing the effectiveness of
the entire brake system.
- Failure of one brake circuit will impair
the braking capability resulting in an in­
creased stopping distance. Avoid driving
the vehicle and have it towed to the near­
est Audi dealer or qualified workshop.
- Never let the vehicle roll to a stop with
the engine shut off.
- If the brake booster is not working, for
example when towing your vehicle, or
because the brake booster has somehow
been damaged, the brake pedal must be
~