2014 AUDI S8 ECO mode

Warm and cold Climate controls
Description
Th e climate control sy stem warms, cools and
adds humidity to the a ir in the veh icle inter io r.
It is the most effect ive when the windows and
sunroof* a re closed. If the temperature inside
the parked vehicle becomes very warm, open­ ing the window briefly will speed up the cool­
ing process.
I n all heating mode f unctions except
defrost,
the blower on ly switches to a higher speed
once the engine coolant has r eached a certain
temperature.
Condensation from the cooling system can
drip and form a puddle of water under the ve­hicle. This is normal and does not mean there
is a leak.
Pollutant filter
The po llutant filte r removes po llutants s uch
as dust and pollen from the air.
The air pollutants filte r must be changed at
t he intervals spec ified in you r Wa rra nty
&
Main tenance book let, so tha t the air condi­
tioner can properly work.
I f you drive you r vehicle in an area with h igh
ai r po llution , the fi lter may need to be
changed more freq uent ly than specified in
your Aud i Warranty
& Ma intenance booklet. If
i n doubt, ask your authorized A udi Service Ad­
visor for advice .
Key coded settings
The clima te con trol settings are a utomat ically
stored and assigned to the remote contro l key
that is in use .
& WARNING
Reduced visibility is dangero us and can
cause accidents . -
Warm and cold 79
-For safe driving it is very important that
all windows be free of ice, snow and con­
densat ion.
- Comp letely fam iliarize yourse lf with the
proper use and funct ion of the heat ing
and ve nti lation system and especially
how to defog and defrost the w indows.
- Never use the windshield wiper/washer
system in freez ing weather unt il you
have warmed the w indshield first, using
the heating and ventilation system. The
washer sol ution may free ze o n the wind­
shie ld an d red uce visib ility.
(D Note
- If you suspect that the air conditioner has been damaged, switch the system
off to avoid furt her damage and have it
i n spected by a q ua lified dea lership.
- Repairs to the Audi air condition er re­
quire specia l techni cal know ledge and
speci al tools. Contact an autho rized Aud i
dealer fo r ass istance.
@ For the sake of the environment
B y reduci ng the amou nt of f uel you use,
you also re duce the amount of pollu tan ts
emitted in to the a ir .
(D Tips
- Keep the air intake s lo ts ( in fro nt of the
w indshield) free from ice, snow and de­
br is in order to maintai n the proper f unc ­
tion of the climate control system.
- T he energy m anagement system may
switch the seat heating* or rear window
defroster off temporar i Ly . These systems
are available again as soon as the energy
balance has been restored .
- Air escapes through vents under the rear
window. When placing items of clothing
on the luggage compartment cover, en­
sure that the openings are not covered.

80 Warm and cold
Operation
We recommend pressing the
IAUTOI button and setting the temperature to 72 °F (22 °C) .
Fig. 81 Cockp it co ntrols
Fig. 82 four zone automat ic climate co ntrol: rea r con ·
trols
Press the buttons to turn the functions on o r
off . Use the dials to adjust the temperature,
the blower speed and the air distribution. The
LED in a button will light up when the func­
tion is sw itched on. The settings are shown in
the climate control display and are also shown in the MMI display for a few seconds . The driv ­
e r and front passenger sett ings can be adjust­
ing separately.
You can also adjust the rear left and right
sides in the four zone automat ic climate con ­
trol*
~ fig . 82.
IOFF i Switching the climate control
system on/off
The I O FFI button switches the climate co ntrol
system on or off .
It also switches on when you
turn the dial or press any button. Airflow from outside is
blocked when the climate control
system is switched off .
You can activate the residual heat function
whe n the ignition is off by pressing and hold­
ing the ~ button. The residual heat from the
coolant is used to heat the vehicle interior .
The resid ua l heat function switches off a uto­
matically after about 30 minutes.
iAIC i Switching cooling mode on/off
The air is not coo led and humidity is not re­
moved when cooling mode is switched off.
T his can cause fog on the windows. Cooling
mode switches off automatically when the
outside temperature is be low zero .
1-1 Switching recirculation mode on/off
In recircu lation mode, the air inside the vehi­
cle is circulated and filtered . This prevents the
u nfiltered air outside the vehicle from enter ­
ing the vehicle interior . We recommend
switching recirculation mode on when driving
through a tunne l or when sitting in traffic
q .&. .
The !AUTO I button or~ button switches reci r­
cu lation mode off.
iAUTOi Switching automatic mode on
Automat ic mode maintains 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 °() and
84 °F (+28 °C) can be set. O uts ide of this
range,
lo or hi will appear in the climate con­
trol system disp lay. At both of these settings,
the climate control system runs continuously
at maximum coo ling or heating power. There
is no temperature regulation.
[!] Adjusting the airflow
You can ad just the airf low manually to suit
your needs . To have the airflow regulated au­
tomatically, press the
I AUTO I button.
~ Adjusting the air distribution
You can manually se lect the vents where the
air will flow. To have the air distribution regu­
l ated automatically, press the
IAUTOI button.
~ I lil* Adjusting Seat heating/
ventilation*
Pressing the button switches the seat heat­
ing/ventilation on at the highest setting ( level
3). The LEDs indicate the temperature leve l.
To reduce the temperature, 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/ventilation
automatically switches from level 3 to level 2.
I n vehicles without the four zone automat ic
climate contro l*, buttons in the rear center
console control the seat heating for both out­
er rear seats*.
~ Switch the defroster on/off
The windsh ield and sid e windows are defrost­
ed or cleared o f condensation as quickly as
possible. 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 72 °F (22 °C) or higher.
The temperature is controlled automatically .
The
IAU TOI button switches the defroster off.
Warm and cold 81
~ 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.
T o p revent the rear window heater from
switching off automatically, press and hold
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 set­
tings for the driver's side are applied to the
front passenger's side (except for seat heat­
i ng/venti lation*) . The rear seat is a lso
synchronized in vehicles with the 4-zone de ­
luxe automatic climate control system* . Syn­
chronization switches off if the sett ings are
adjusted on the front passenger's side or in
the rear* .
You can synchronize the settings in a row by
pressing and holding a knob. For example, to
apply the settings for the front passenger's s ide to the driver's side, press and ho ld the
knob on the front passenger's s ide.
Air vents
You can open or close the center and rear
vents in the cockpit and the vents in the rear
center console and door pillars us ing the
ridged thumbwheels. The levers adjust the di­
rection of the airflow from the vents.
,&. WARNING
-Do not use the recirc ulation mode for ex­
tended periods 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 imme­
diately to switch off the air recirculation
function or select defrost .
- Individuals w ith reduced sensitivity to
pa in or temperature could deve lop burns
when using the seat heating function . To
reduce the risk of injury, these indiv idu-
als shou ld not use seat heating. ..,.

Emergency brake function
An emergency brake ensures that the vehicle
can be slowed down even if the
normal brakes
fail
c::> page 88, Emergency broking.
Ind icator light s
-If the par king b rake is closed w ith the igni­
t ion
s wit ched on the indicator lights come
on - (USA models)/ . (Canada models)
in the instrument cluster and in the switch.
- If the par king brake is closed w ith the igni ­
tion
s witc hed off the indicator lights come
on - (USA models)/ . (Canada models)
in the instr ument cluster and in the switch
for about 20 seconds.
A WARNING
Do not press the accelerator peda l inadver­
tently if the vehicle is stat ionary but the
eng ine is running and a gear is selected.
Otherw ise the vehicle will start to move
immediately and cou ld result in a crash.
(D Note
If the symbol . in the display or the ind i­
cato r light
1111 (USA models) . (Cana­
da models) in the instrument cluster flash­
es, the re is a malfunction in the bra ke sys­
tem. Please refer to t he detai led descr ip­
t ion of the indicator lights¢
page 14.
- If the indicato r light - (USA mod-
els) . (Canada mode ls) or
IIJ t ur ns
on, there may be a malfunction in the
parking brake
r=> poge 15.
@ Tips
-You can apply the pa rking brake at any
time -even w ith the ignition swi tched
off. The ignition must be on and the
brake pedal must be pressed in order to
release the parking brake.
- Occasiona l noises when the parking
brake is applied and re leased are norma l
and are not a ca use for concern.
- When the vehicle is parked, the parking
brake goes through a se lf-test cycle at
On th e ro ad 87
regular inte rva ls. Any associated noises
are normal.
· Parking
.. Press the brake pedal to stop the veh icle.
.. Pull the switch(®) to set the parking brake.
.. Select the P selector lever posit io n
c::> poge 116.
.. Tu rn the engine off c::> .&_ .
.,. When on inclines o r declines, tur n the steer­
ing wheel so that your veh icle w ill ro ll into
t he c urb if it beg ins to move.
A 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 cou ld start the engine, re­
lease the parking brake or operate elec­
trical equipment (e.g. powe r wi ndows).
T here is the r is k of an accident.
- When the veh icle is locked, no one -par­
ticularly not children should rema in in
the vehicle. Locked doors ma ke i t mo re
diff icult for emergency wo rke rs to ge t in­
to the veh icle -putt ing lives at risk.
Starting from rest
The starting assist function ensures that the
parking broke is released automatically upon starting.
Stopping and applying park ing brake
.. Pull the sw itch(®) to apply the parking
brake .
Starting and automatic ally releasing the
parking brake
.. When you sta rt to dr ive as usual, the park­
ing brake is automatically released and your
veh icle begi ns to move.
When stopping at a traffic signal or stopping in city traff ic, the parking brake can be ap-
plied . The vehicle does not have to be he ld
IJ>-

88 On the road
with the footbrake . The parking brake elimi­
nates the tendency to creep with a drive range
engaged . As soon as you dr ive off as usual,
the park ing brake is released automatically
and the vehicle starts to move.
Starting on slop es
When starting on inclines, the starting assist
prevents the vehicle from unintentiona lly ro ll­
ing back. The braking force of the parking
brake is not released until sufficient driving
force has been bu ilt up at the wheels.
For safety reasons, the park ing brake is re­
leased automatically only when the dr iv­
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 switch(®) pulled and depress the
acce lerator. The parking brake stays applied
and prevents the vehicle from ro lling back­
ward.
.. You can release the switch (®) once you are
sure that you are develop ing enough for­
ward momentum at the wheels as you de­
press the accelerator.
Depending on the weight of the r ig (vehicle
and tra iler) and the severity of the incl ine, you
may roll bac kwards as you sta rt. You can pre­
vent roll ing backwards by holding the parking
b rake switch (®) p ulled out and acce lerat ing -
just as you would when starting on a hill with a conventional hand brake.
Emergency braking
In the event that the conventional brake sys ­
tem fails or locks .
.. In an emergency, pull the switch(®) and
contin ue to p ull it t o slow your vehicle down
with the parking brake.
.. As soon as you release the switch (®) or ac­
ce lerate, the braking process stops.
If you pull the switch(®) and hold it above a
speed of about 5 mph (8 km/h), the emergen­
cy bra king f unct ion is initiated. The vehicle is
braked at all four whee ls by activating the hy­
draulic brake system. The brake performance
is simila r to making an emergency stop
c> .&. .
In order not to act ivate the emergency brak­
ing by mistake, an audib le warning tone (buz­
zer) sounds when the switch(®) is pulled. As
soon as the sw itch (®) is re leased, or the accel­
erato r pedal is depressed, eme rgency braking
stops .
.&, WARNING
E mergency braking should only be used in
a n emergen cy, when t he norma l foot bra ke
has fa iled or the brake pedal is obstructed.
Using the par king brake to perform emer ­
gency b raking will s low your vehicle down
as if you had made a full brake application.
The laws of physics cannot be suspended
even with ESC and its associated compo­ nents (ABS, ASR, EDL). In corners and
when road o r weathe r cond itions are bad,
a full brake application can cause the v ehi­
cle to s kid or the rear end to break away -
r isking an a cci den t.
Start-Stop-System
Description
Appl ies to vehicles : wit h Start-Stop-System
The Start-Stop-System can help increase fuel
economy and reduce CO2 emissions .
In the Start -Stop -mode, the engine shuts off
automat ica lly when the veh icle is stopped,
such as at a traffic light. The ignition remains
switched on during this stop phase. The en­
gine wi ll be automat ica lly restarted when
needed .
The last Start-Stop-System setting (on/off us­
ing the button
l 0a• I) will be restored when the
ignition is turned on. The LED in the !09 ~1 but­
ton turns on when the Start-Stop-System is swit ched off manually.
IJ,,

90 On the road
Engine will not swit ch off
Before each stop phase, the system checks i f
certain cond itions have been met. For exam ­
p le, the engine will
n ot be switched off in the
following situations:
- T he eng ine has not reached the minimum
required temperature for Start -Stop-mode .
- The inter io r temperature selec ted by the A/C
system has not been reached .
- T he outs ide temperature is extremely h igh/
low .
- T he w indshield is being defrosted
¢page 82.
-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
tiij indica to r light appears in the informa­
tion line in the ins trument cluster disp lay
<=:>fig . 89 .
Engine automatically restarts
The stop phase is interrupted in the following
situations, for examp le. The engine restar ts
witho ut any act ion by the driver.
- T he interio r temperature varies from the
temperature selected in the A/C system .
- The w indshield is being defrosted
<=:> page 82.
- The brake pedal is pressed several times i n a
row .
- The battery charge level becomes too low .
- High power consumption.
Sw itching the ignition automatically
To prevent the battery from d raining, the igni­
tion will switc h off
automat ically when a ll of
the following conditions have been met:
- T he veh icle has already been driven.
- T he eng ine has been tu rned off by the Star t-
Stop-System*.
- The driver's door is opened.
- The driver's seat belt is removed.
- The brake pedal is not pressed dow n. -
The vehicle is stationa ry .
In this case, the activated low beam will be re­
placed by the side ma rke r lights. The s ide
marker lights w ill switch off after approxi­
mately 30 minutes or when you lock the vehi ­
cle .
If the Star t-Stop System h as n ot turned off
the engine or if you have sw itched the Start­
Stop system off man ua lly, the ignition will
not
be automatica lly switched off and the engine
will continue to ru n ¢ ,& .
A WARNING
=
Never allow the engine to run in confined
spaces -danger of asphyxiation.
(D Tips
If you shift into the D, Nor S posit ions af­
ter sh ifting into reverse, the vehicle must
be driven faster tha n 6 mph (10 km/h) in
order for the engine to sw itch off again.
Switching the Start-Stop -System on/off
manually
App lies to vehicles: wi th Start-Stop -System
If you do not wish to use the system, you con
switch it off manually.
F ig . 90 Ce nter console: Start-Stop -System button
.,. To swi tch the Start-Stop-Sys tem off/on
manually, p ress the
l(A) ~·I button. The L ED in
the button turns on when the system is
switched off .

(D 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
App lies 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 dur ing a stop phase and the
Start-Stop-System will
not be able to restart
the engine.
If the Dor R selector lever posi ­
tions were engaged, P will be selected auto­
matica lly. The engine must be sta rted with
the
! S TAR T ENGINE ST OPI button.
Start-Stop system: System fault! Function
unavailable
There is a malfunct ion in the Start-Stop-Sys­
tem . Dr ive the veh icle to an authorized repair
fac ility for servicing as soon as possible to cor­
r ect 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 prox imately 3 mph (3 km/h) . An indicator
light . (USA models)/ . (Canada models) in
the instrument cluster display also turns on at
the same time . The indicator light ••
turns off when the speed decreases below the
stored maximum speed.
Sett ing a thresho ld is recommended if you
wou ld like to be reminded when you reach a
cer tain maximum speed. Situations where you
may want to do so include driving in a country
On the road 91
with a general speed limit or if there is a
specified max imum speed for winter tires .
@ Tips
Even though your vehicle is eq uipp ed w ith
a speed warning system, you should still
watch the speedometer to make sure you
are not dr iv ing faster than the speed limit.
Setting the threshold
You can set, change and delete the threshold
in the MMI.
.. Select: !CAR I function button> Car systems
cont rol button > Driver assist > Speed warn·
ing .
You can set any threshold between 20 mph
(30 km/h) and 150 mph (240 km/h) . Sett ings
can each be ad justed in increments of 5 mph
(10 km/h).
Cruise control
Switching on
The cruise control system makes it possible to
drive at a constant speed starting at 20 mph (30 km/h) .
0
f
~
0
Fig. 91 Contro l le ver with s et bu tto n
Fig. 92 Disp lay: Se lecte d speed

Audi adaptive cruise control and braking guard 99
then maintains the stored distance. If the ve­
hicle ahead accelerates, adaptive cr uise con­
trol will also accelerate up to the stored
speed.
The higher the speed, the greater the distance
in yards (meters) ¢.&. . The
Distance 3 setting
is recommended .
The distances prov ided are spec ified values.
Depending on the driving situation and the
how the vehicle ahead is driving, the actual
d istance may be more or less than these tar­
get distances.
The various symbols for the time increments
appear briefly in the information line @
¢ page 96, fig. 98 when you change the set­
tings.
~ -~ --- Distance 1: This setting corre­
sponds to a distance of 92 feet/28 meters
when traveling at 62 mph (100 km/h), or a
time interva l of
l second.
~ -- ~-- Distance 2: This setting corre­
sponds to a distance of 118 feet/36 meters
when traveling at 62 mph (100 km/h), or a
time interva l of 1.3 seconds .
~--- ~-Distance 3: This setting corre ­
sponds to a distance of 164 feet/SO meters
when traveling at 62 mph (100 km/h), or a
time interva l of 1.8 seconds .
~---- ~ Distance 4: This setting corre ­
sponds to a distance of 210 feet/64 meters
when traveling at 62 mph (100 km/h), or a
time interva l of 2.3 seconds .
A WARNING
Following other vehicles too closely in­
creases the risk of collisions and serious
personal injury.
- Setting short distances to the traffic
ahead reduces the time and distance
available to br ing your vehicle to a safe
stop and makes it even more necessary
to pay close attention to traffic.
- Always obey applicable traffic laws, use
good judgment, and select a safe follow- ing distance
for the traffic, road and
weather conditions.
@ Tips
- Distance 3 is set automatically each time
you switch the ignition on.
- Your standard settings are automatically
stored and assigned to the remote con­
tro l key being used.
Selecting the driving mode
Applies to vehicles: with Aud i adapt ive c ruise contro l
.,. Select the desired driving mode in drive se­
lect¢
page 110.
(0 Tips
Your settings are automat ica lly stored and
assigned to the remote control key being
used.
Prompt for driver intervention
Applies to vehicles: with Audi adapt ive cru ise contro l
Fig. 102 Instrument cluster: request fo r drive r in ter­
vent ion
In certa in situations, the system will prompt
you to take action . Th is could happen, for ex­
amp le, if braking by the adaptive cruise con­
trol system is not enough to maintain enough
distance to the vehicle ahead.
The indicator light
I and the symbol in the
display will warn you about the situation
¢ fig. 102. You will also hea r an acoustic sig­
nal.
- Press the brake pedal to slow your vehicle
down.