2015 AUDI A6 stop start

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Starting the engine
"'Press the brake pedal c::> _&..
"'Pr ess the !START ENGINE STOPI button
c::> fig. 77. The engi ne will start.
"' It is possible that there will be a slight delay
when starting the engine for diesel vehicles
in colder temperatures. Therefore, you must
hold the brake pedal down until the engine
starts. The indicator lamp
Ii illuminates
when the engine is preheated.
If the engine should not start immedi ately,
the starting process is automatically stopped
after a short time . Repeat starting procedure.
Start-Stop-System*:
Note the information on c::> page 79, Start­
Stop-System.
A WARNING
- Never allow the engine to run in confined
spaces -danger of asphyxiation .
- Never turn off the engine until 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 usual­
ly would, this could lead to crashes and
serious injuries.
-Avoid high engine rpm, full throttle and
heavy engine loads until the engine has
reached operating temperature - other­
wise you risk engine damage.
- The engine cannot be started by pushing
or towing the vehicle.
(D Tips
-After a cold engine is started, there may
be a brief period of increased noise be­
cause oil pressure must first build up in
the hydraulic valve adjusters. This is nor­ mal and not a cause for concern.
- If you leave the vehicle with the ignition
switched on, the ignition will switch off
On the road 75
after a certain period of time. Please
note that electrical equipment such as
exterior lights will switch off as well
when that happens.
Stopping the engine
"'Bring your vehicle to a complete stop.
"' Move the selector lever to the P or N posi ­
tion .
"'Press the
I STAR T ENGINE ST OP I button
c::> page 7 4, fig. 77.
Steering lock
The steer ing locks when you turn the engine
off using the
I STAR T ENGINE STOP I button
and open the driver's door. The locked steer­ ing helps prevent vehicle theft.
Emergency off
If necessary, the engine can be switched off
with the selector lever in the R or D/S posi ­
tion. The engine stops if you press the
I START ENGINE STOPI button at speeds below
6 mph (10 km/h).
A WARNING
-Never turn off the engine until 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 usual­
ly would, this could lead to crashes and
serious injuries.
- For safety reasons, you should always
park your vehicle with the selector lever
in P. Otherwise, the vehicle could inad­
vertently roll away.
- After the engine has been switched off,
the radiator fan can continue to run for
up to 10 minutes -even with the ignition
switched off.
It can also switch on again
after some time if the coolant tempera­
ture rises as the result of a heat buildup
.
or if the engine is hot and the engine .,..

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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.. Press the !S TAR T ENGINE STOP I button. The
engine will start.
.. Drive to your author ized Audi dealer imme­
diately to have the malfunction corrected .
@ Tips
You can view the message again by press­ ing the
! START ENGINE STOPI button.
Electromechanical
parking brake
Operation
The electromechanical parking brake replaces
the hand brake.
Fig. 79 Center console: Park ing brake
.. Pull on the switch<®> c:;, fig . 79 to apply the
parking brake. The indicator lights in the
switch and. (USA models)/ . (Cana -
da models) in the instrument cluster illumi­
nate .
.. With the ignit ion sw itched on, step on the
brake pedal or the accelerator pedal and
press the sw itch<®> at the same time to re­
lease the parking brake. The indicator lights
in the switch and. (USA models) . (Can­
ada models) in the instrument cluster go
out .
Your vehicle is equipped with an electrome­
chanica l parking brake. The parking brake is
designed to prevent the vehicle from rolling unintentionally and replaces the hand brake .
In addition to the norma l functions of a tradi­
tional hand brake, the electromechanical parking brake provides various convenience
and safety functions.
On the road 77
When starting from rest
- The integral start ing assist helps you when
driving by automatically re leasing the park­
ing brake c>
page 78, Starting from rest.
-When start ing on inclines, the starting as­
sist p revents the vehicle from unintentiona l­
ly rolling back. The braking force of the
parking brake is not re leased until sufficient
driving force has been built up at the
wheels.
Emergency brake function
An emergency brake ensures that the vehicle
can be slowed down even if the
normal brakes
fail
c:;, page 78, Emergency braking.
A WARNING
Do not press the accelerator pedal inadver­
tently if the veh icle is stationary but the
engine is running and a gear is selected .
Otherwise th e vehicle w ill start to move
immediately and could result in a crash.
@ Tips
- If the parking brake is applied with the
ignition switched
off, the indicator lights
in the switch and. (USA models)/ •
(Canada models) in the instrument clus­
t er w ill go out after a certain period of
time.
- Occasional noises when the parking
brake is applied and released are normal
and are not a cause fo r concern.
- When the vehicle is pa rked, the parking
brake goes through a self-test cycle at
regu lar intervals. Any associated noises
are normal.
Parking
.. Press the brake pedal to stop the vehicle.
.. Pull the switch(®) to set the parking brake.
.. Move the selector lever to P .
.. Tu rn the engine offc>
.&.
.,. When on inclines or decl ines, turn the steer­
ing wheel so that your veh icle wi ll roll into
the curb if it begins to move. ""

78 On the road
& WARNING
-When you leave your vehi cle -even if on­
ly brief ly -always take the ignition key
with yo u. This applies par ticu larly when
children remain in the veh icle. Otherw ise
the ch ildren could start the engine, re­
lease the parking brake or operate elec­
trical equipment (e.g. power windows) .
There is the risk of an accident.
- When the vehicle is locked, no one -par­
t icularly not children should remain in
the vehicle. Loc ked doors make it more
difficult for emergency wor kers to get in­
to the vehicle - putt ing lives at risk.
Starting from rest
The starting assist function ensures that the
parking brake is released automatically upon starting.
Stopping and applying parking brake
" Pull the switch ID to apply the park ing
brake.
St arting and automa tically relea sing the
parking brake
.. When you start to drive as usua l, the park­
ing brake is automatically released and you r
vehicle begins to move.
When stopp ing at a traff ic signa l or stopp ing
in city traffic, the parking brake can be ap­
plied . The veh icle does not have to be held
with the footbrake. The par king brake elimi­
nates the tendency to c reep with a drive range
engaged. As soon as you dr ive
off as usua l,
the park ing brake is released automatically
and the vehicle starts to move.
Starting on slopes
When sta rt ing on in cl ines, the starting ass ist
p revents the veh icle from uninten tionally ro ll­
ing bac k. The braking force o f the parking
brake is not released un til sufficient dr iving
force has been b uilt up at the whee ls.
(D Tips
For safety reasons, the parking bra ke is re­
l eased automatically only when the driv­
er's safety belt is engaged in the buckle.
Starting off with a trailer
To prevent rolling back unintentionally on an
incline, do the following:
.. Keep the sw itch(®) pulled and depress the
accelerator. The pa rking bra ke stays applied
and prevents the vehicle from roll ing back­
ward.
" You can release the switch© once you are
sure that you are developing enough for­
wa rd momentum at the wheels as you de­
press the acce lerator.
Depend ing on the we ight of the rig (vehicle
and trailer) and the severity of the incline, you
may roll backwards as you start. You can p re­
vent rolling backwa rds by holdi ng the par king
brake switch (®) pulled o ut and ac celera ting -
j u st as you wou ld w hen s tarti ng on a hill wi th
a conventiona l hand brake.
Emergency braking
In the event that the conven tional brake sys­
tem fails or locks.
"I n an emergency, pull the switch(®) and
cont inue to pull it to slow your ve hicl e down
w ith the par king b rake.
" As soon as you re lease the swi tch (®) or ac -
celerate, the braking process stops.
If you p ull the swi tc h (®) a nd hold it above a
speed of about 5 mph (8 km/h), the emergen­
cy braking f unction is initiated. The ve hicle is
braked at all four whee ls by activating the hy­
draulic brake system. The brake performance
is similar to making an emergency stop¢&..
In order not to activate the emergency brak-
ing by mistake, an audib le warning tone (buz ­
zer) sounds when the switch(®) is pulled. As ..,.

soon as the switch(®) is released, or the accel ­
erator pedal is depressed, emergency braking
stops.
.&_ WARNING
Emergency braking should only be used in
an emergency, when the normal foot brake
has failed or the brake pedal is obstructed .
Using the parking brake to perform emer­
gency braking will slow your vehicle down
as if you had made a full brake applicat ion.
The laws of physics cannot be suspended
even with ESC and its associated compo­
nents (ABS, ASR, EDL). In corners and
when road or weather conditions are bad
'
a full brake application can cause the vehi-
cle to skid or the rear end to break away -
r isking an accident.
Start-Stop-System
Description
Appl ies to vehicles : wit h Start-Stop-System
The Start-Stop-System can help increase fuel
economy and reduce CO
2 emissions.
I n the Start-Stop-mode, the engine shuts off
automatically when the vehicle is stopped,
such as at a traffic light. The ignit io n remains
sw itched on dur ing th is stop phase. The en­
gine will be automatically restarted when
needed.
The last Start-Stop-System setting (on/off us­
ing the button
l ignition is turned on . The LED in the
l --1 but­
ton turns on when the Start-Stop-System is
switched off manually.
Basic requirements for the Start-Stop
mode
- The driver's door is closed .
- The driver' seat belt is latched.
- The hood is closed.
- T he veh icle must have been driven faster
~ than 2.5 mph (4 km/h) since the last stop.
~ -A tra iler is not hitched to the veh icle.
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On the road 79
.&_ WARNING
-Never let the vehicle roll with the engine
sw itched off . You could lose control over
the vehicle. This can lead to a collision
and serious injuries.
- The brake booster and the steering sup­
port do not work while the engine is
sw itched off. More force is required to
stop and to steer the vehicle.
- To reduce the risk of injuries, make sure
that the Start-Stop-System is turned off
when working in the eng ine compart­
ment ¢
page 81.
(D Note
Always switch off the Sta rt-Stop-System
when driving through water¢
page 81.
Starting/stopping the engine
Applies to vehicles: w ith Start -Stop-System
Fig. 80 Instrument cluste r: engine sw itched off (stop
p hase)
.,. Slow the vehicl e to a stop using the brake
and keep pressing the brake pedal. The en ­
gine will switch off. The
tlJ indicator light
appears in the information line in the instru­
ment cluster display.
.. When you take your foot off the brake ped­
al, the engine restarts. The indicator light
turns off.
Additional information
The eng ine will switch off in the P, D, N and S
positions as well as in manual mode. In the P
position, the engine will also remain off if you
take your foot off the brake pedal. The engine
starts aga in when you select another selector ..,_

80 On the road
lever position and take your foot off the brake
pedal.
If you select the R position during a Stop
phase, the engine will start again.
Shift from
D to P quickly to prevent the engine
from starting unintentionally when shifting
through
R.
You can determine for yourself if the engine
will stop or not by reducing or increasing the
amount of force you use to press the brake
pedal. For example, if you only lightly press
on the brake pedal in stop-and and-go traffic
or when turning, the engine will not switch off
when the vehicle is stationary. As soon as you
press the brake down harder, the engine will
switch off.
General information
App lies to vehicles: with Start-Stop-System
The standard Start-Stop-mode can be cancel­
led for different system-related reasons.
Fig . 81 Instrument cluster: engine -Stop tempo rarily
unava ilable
Engine will not switch off
Before each stop phase, the system checks if
certain conditions have been met. For exam·
ple, the engine will
not be switched off in the
following situations:
- The engine has not reached the minimum
required temperature for Start-Stop-mode.
- The interior temperature selected by the A/C
system has not been reached.
- The outside temperature is extremely high/
low .
- The windshield is being defrosted
¢ page 69, ¢ page 71.
-The parking system* is switched on.
- The battery charge level is too low.
- The steering wheel is sharply turned or
there is a steering movement.
- After engaging the reverse gear .
- On sharp inclines.
The
fjJ indicator light appears in the informa­
tion line in the instrument cluster display
¢fig . 81.
Engine automatically restarts
The stop phase is interrupted in the following
situations, for example. The engine restarts
without any action by the driver.
- The interior temperature varies from the
temperature selected in the A/C system.
- The windshield is being defrosted
c:!;> page 69, ¢ page 71.
-The brake pedal is pressed several times in a
row.
- The battery charge level becomes too low.
- High power consumption.
Switching the ignition off automatically
To prevent the battery from draining, the igni­
tion will switch off
automatically when all of
the following conditions have been met :
- The vehicle has already been driven.
- The engine has been turned off by the Start-
Stop-System*.
- The driver's door is opened.
- The driver's seat belt is removed .
- The brake pedal is not pressed down.
- The vehicle is stationary.
In this case, the activated low beam will be re­
placed by the side marker lights. The side
marker lights will switch off after approxi­
mately
30 minutes or when you lock the vehi­
cle.
If the Start-Stop System has
not turned off
the engine or if you have switched the Start­
Stop system off manually, the ignition will
not
be automatically switched off and the engine
will continue to run
c:!;> ,&. .,..

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WARNING
Never allow the engine to run in confined
spaces - danger of asphyxiation.
@ Tips
If you shift into the 0, N or S positions af­
ter shift ing into reverse, the vehicle must
be driven faster than 6 mph (10 km/h) in
order for the engine to switch off again .
Switching the Start-Stop-System on/off
manually
Applies to vehicles: with Start-Stop-System
If you do not wish to use the system, you can
switch it off manually .
Fig. 82 Cente r console : Sta rt-Stop -System button
.., To sw itch the Start-Stop-System off/on
manua lly, press the
16'> .. I button. The LED in
the button turns on when the system is
switched off.
{t) Tips
If you switch the system off during a stop
phase, the engine will start again auto­
mat ically.
Messages in the instrument cluster
display
Applies to vehicles: with Start-Stop -System
Start-Stop system deactivated: Please re­
start engine manually
This message appears when specific condi ­
tions are not met during a stop phase and the Start-Stop-System will
not be able to restart
the eng ine. If the D or R selector lever posi­
tions were engaged, P will be selected auto-
On the road 81
matically. The engine must be started with
the
I START ENGINE STOP! button.
Start-Stop system: System fault! Function
unavailable
There is a malfunction in the Start-Stop-Sys­
tem. Drive the vehicle to an author ized repa ir
facility for servicing as soon as possible to cor­
rect the malfunction .
Speed warning system
Introduction
The speed warning system helps you to stay
under a specified maximum speed .
The speed warning system warns you if you
are exceeding the maximum speed that you have set. You will hear a warning tone when
your speed exceeds the stored value by ap­ proximately 3 mph (3 km/h) . An indicator
light. (USA models)/ . (Canada models) in
the instrument cluster disp lay also turns on at
the same time. The indicator light./.
turns off when the speed decreases be low the
stored maxim um speed.
Setting a threshold is recommended if you
would like to be reminded when you reach a
certain maximum speed . Situations where you
may want to do so incl ude driving in a country
with a general speed limit or if there is a
specified maximum speed for winter tires .
@ Tips
Even though your vehicle is eq uipp ed w ith
a speed warning system, you sho uld still
watch the speedometer to make sure you
are not driving faster than the speed limit.
Setting the threshold
You can set, change and delete the threshold
in the MMI.
.., Select: !CAR ! function button> (Car)* sys­
tems
control button > Driver assist > Speed
warning.
~

82 On the road
You can s et any t hreshol d between 20 mph
(30 km/h) and 150 mph (240 km/h). Settings
can each be adjusted in increments of 6 mph
(10 km/h) .
Cruise control
Switching on
Applies to vehicles: with cruise control
The cruise control system makes it possible to
drive at a constant speed starting at 20 mph
(30 km/h).
0
f
~
0
Fig . 83 Con trol lev er w it h s et bu tton
Fi g. 84 Dis pla y: Sele cte d s pee d
• Pull the lever to position (D c::, fig. 83 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
II (US models) ;ii (Canadian models) ap­
pear in the instrument cluster d isp lay
cc> fig. 84. The display may vary, depending on
t he type of d isp lay in your vehicle .
Th is information is also shown briefly in the
Head-up Display *.
The speed is kept constant v ia an engine out­
put adjustment or act ive b rake intervention .
A WARNING
--Always pay attent ion to traffic even when
the cruise co ntrol is switched on . You are
always responsib le for your speed and
the distance between your veh icle and
other veh icles .
- For safety reasons, the cruise cont ro l
should not be used in t he city, in stop­
a nd -go traffi c, on twisting roads and
when road con ditions are poor (such as
ice, fog, gravel, heavy rain and hydro ­
p la ni ng) -risk of accident .
- Tu rn off the cruise co ntro l temporarily
when entering turn la nes , highway exit
lanes or in constr uction zones .
- Please note that inadve rtently "res ting"
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 s uch as
overheating occurs when the cruise con­
trol system is switched on, the braking
function in the system may be sw itched
off . The other c ruise control functions re­
main act ive as long as the indicato r light
II (US model s)/ ... (Canadian mo dels)
is o n.
(D Tips
The brake lights illum inate as soon as the
brakes decele rate automatically .
Changing speed
Applies to vehicles: with cruise control
• To increase/de crease the s peed in inc re­
ments, tap the lever in the
0 10 direc tion
c::> page 82 , fig . 83
• To increase/decrease the s peed quick ly, hold
the lev er in the
0 10 d irect ion until the de­
sired speed is displayed .
You can also press the accelerator pedal down
to increase your speed, e .g . if you want to
pass someone. The speed you saved earlie r
will res ume as soon as you release the acceler-
ator pedal. ..,.