2016 AUDI A8 warning light

Starting and stopping
the engine
Starting the engine
The I S TAR T ENGIN E ST OP ! button switches the
ignition on and starts the engine.
Fig. 88 Cente r co nsole: S TART ENG IN E STOP b utton
Switching the ignition on /off
.,. To switch the ign ition on/off, press the
I START E NGIN E STOP ! button. Do not press the
brake pedal while do ing th is . Diesel vehicles a re
preheated while the ignition is sw itched on .
Starting the engine
~ Press the brake peda l c:> _&.
.,. Press the I START E NG IN E ST OPI button
c:> fig . 88 . The engi ne w ill s tart.
.,. It is possible that there will be a slight delay
when starting the eng ine in d iesel veh icles in
colder temperatures . There fore, you mus t hold
t h e brake pedal down un til the eng ine starts .
The ind icator light turns o n while the engine is
preh eating
m.
If the engine sho uld not start immed iate ly, the
starting process is automatica lly stopped after a
short time. Repeat the start ing process .
Start/Stop system*
Note the infor mation in c:> page 85, Start/Stop
system.
_& WARNING
- Never allow the engine to run in confine d
spaces - danger of asphyxiation.
- Never t urn off the engine before the ve hicle
has come to a comp lete stop .
Drivi ng
-The brake booster and power steer ing only
work when the engine is runn ing . If the en­
g ine is off, yo u have to use more force when
steer ing o r braking . Because you cannot
steer a nd b rake as you usu ally would, this
could lead to crashes and serious injuries .
(D Note
Avoid h igh engine speed, full th rottle, and
heavy engine load as long as the eng ine has
not reached ope rating temperature yet . You
could damage the e ng ine .
© Tips
-Some noise after start ing the engine is nor­
ma l and is no cause for co nce rn .
- If you leave the ve hicle w ith the ignition
switched on, the ig nit ion w ill switch off af ­
t er a ce rtain amount of time. Ma ke sure that
el ec trical equipment such as the exte rior
ligh ts a re swi tched off .
Stopping the engine
.,. Bring you r vehi cle to a complete stop.
.,. Move the selector lever to the P o r N posit ion .
.,. Press the I ST AR T EN GINE ST OP ! button.
Steering lock
The steer ing locks when yo u tur n the eng ine off
u sing the
I S TART ENG INE S TOPI bu tton and
o pen t he d river 's doo r. T he locked steering help s
prevent vehicle theft.
Emergency off
If necessary , the eng ine ca n be switched off w ith
t h e selec tor lever in the R, Do r S posit io ns. Th e
engine s tops if you press and hold the
!S TAR T EN GINE ST OP ! button a t speed s below 6
mph ( 10 km/h) and press the bra ke peda l.
_& WARNING
-Never turn off the engine be fore the vehicle
has come to a complete stop . The full func­
tion of the brake booster and the power
steer ing is not guara nteed. You must use ..,.
81

Driving
E m erg ency b ra ke function
An emergency b rake ensures that the veh icle can
be slowed down even if the
normal brakes fai l
¢ page 85, Emergency broking.
.&_ WARNING
-
Do not press the accelerator pedal inadver­
tently if the vehicle is stationary but the en­
gine is runn ing and a gear is selected. Other­
w ise the vehicle will start to move immediate­
ly and could result in a crash.
(D Tips
- If the parking brake is app lied with the igni­
tion switched off, the indicator lights in the
switch and -(USA models)/ . (Cana-
da models) in the instrument cluster will go
out after a ce rtain per iod of t ime.
- Occasional noises when the parking brake is applied and released are normal and are not
a cause for conce rn.
- When the vehicle is parked, the park ing
brake goes thro ugh a self-test cycle at regu­
l a r i ntervals. Any associa ted noises a re nor­
mal.
Parking
" Press the brake ped al to stop the vehicle.
" Pull the switch
«el} to set the parking brake .
" Se lect the P selector lever position
c:> poge 112.
"Turn the eng ine off c> &_ .
"When on incl ines or declines, turn the steering
wheel so that your vehicle will roll into the c urb
if it beg ins to move .
.&_ WARNING
-When you leave your vehi cle -even if on ly
br iefly -always ta ke the ignition key with
yo u. This applies par ticularly when children
remain in the vehicle . Otherwise the chil ­
dren could start the engine, release the
parking b rake o r operate elect rical eq uip­
ment (e.g . power windows). There is the r isk
of an accident.
84
-
- When the veh icle is locked, no one -pa rtic u­
larly not chi ldren should rema in in the vehi­
cle. Locked doors make it more d ifficult for
emergency workers to get into the vehicle -
putting 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 switch
C®l to apply the parking brake .
Starting and automatically releasing the
park ing bra ke
" When you sta rt to drive as usua l, the par king
brake is automatically released and your vehicle
beg ins to move.
When stopping at a traffic signa l or stopping in
city traffic, the parking brake can be applied. The
vehicle does not have to be held with the foot­
brake . The parking brake eliminates the tendency
to creep w ith a dr ive range engaged. As soon as
you drive off as usual, the parking brake is re ­
leased a utomat ically and the vehicle starts to
move .
Starting on slopes
When starting on incl ines, the sta rting assist pre­
vents the vehicle from un intent iona lly rolling
back. The braking force of t he parking brake is
not released u nti l sufficient dr iv ing force has
been built up at t he wheels .
(D Tips
Fo r safety reasons, the park ing brake is re­
l eased automatically only when the driver's
safety be lt is e ngaged in the b uck le.

.... N
0 J:
'SI: .... .... Starting off with a trailer
To prevent rolling back unintentionally on an in­
cline, do the following:
11-Keep the sw itch<®) pulled and depress the ac­
celerator. The parking brake stays applied and
prevents the vehicle from rolling backward .
11-You can release the switch© once you are su re
that you a re deve loping enough forwa rd mo­
mentum at the whee ls as you depress the ac­
celerator .
Depending on the weight of the rig (vehicle and
trailer) and the seve rity of the incline, you may
roll backwards as you start. You can prevent roll­
ing backwards by holding the parking brake
switch C®> pulled out and accelerating -just as
you would when starting on a hill with a conven­
tional hand brake.
Emergency braking
In the event that the conventional brake system
fails or locks.
11-In an emergency, pull the sw itch<®) and contin­
ue to pull it to s low your vehicle down with the
parking brake.
11-As soon as you release the switch © or acceler-
ate, the brak ing process stops.
If you pull the switch<®> and hold it above a
speed of about 5 mph (8 km/h), the emergency
braking function is in itiated. The vehicle is braked
at all four wheels by activating the hydrau lic
brake system . The brake performance is sim ilar
to making an emergency stop¢,& .
In order not to activate the emergency brak ing by
mistake, an audib le warning tone (bu zzer)
sounds when the sw itch(®) is pu lled . As soon as
the switch(®) is released, or the accelerator pedal
i s depressed, emergency braking stops .
A WARNING
Emergency braking should only be used in an
emergency, when the normal foot brake has
fai led or the brake pedal is obstructed. Using
t he parking brake to perform emergency
braking will slow your vehicle down as if you
D riving
had made a full brake applicat ion . The laws of
physics cannot be suspended even with ESC
and its associated components (ABS, ASR,
EDL). In corners and when road or weather
conditions are bad, a full brake application
can cause the vehicle to skid or the rear end to
b reak away -risking an acc ident.
Start/Stop system
Description
Applies to: vehicles with 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 au­
tomatica lly when the vehicle is stopped, such as
at a traffic light . The ign ition remains switched
on during this stop phase. The eng ine will be au­
tomat ically restarted when needed.
The last Start-Stop-System setting (on/off using
the b utton
10 -I) will be restored when the igni­
t ion is turned on. The LED in the
10 ~1 button 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.
- The vehicle must have bee n driven faster than
2.5 mph (4 km/h) since the last stop.
- A trailer is not hitched to the vehicle .
A WARNING
-
-Never let the vehicle roll with the engine
switched off. You could lose contro l over the
veh icle. Th is can lead to a collision and seri­
ous injuries .
- The brake booster and the steering support
do not work while the engine is switched
off . More force is required to stop and to
steer the vehicle.
- To reduce the risk of injur ies, ma ke sure that
the Sta rt-Stop-System is turned off when
working in the engine compartment
¢page 87.
85

-The windshield is being defrosted~ page 79.
-The brake pedal is pressed sever al t imes in a
row .
- T he battery charge level becomes too low .
- High power cons umption .
Switching the ignition off automa tic ally
To prevent the battery from dra ining, the ignition
will sw itch off
auto mati call y when all of the fol­
lowing cond itions have been met:
- The vehicle has already been driven.
- The eng ine has been turned
off by the Start-
Stop -System*.
- The driver's door is opened .
- The driver's seat bel t is removed.
- The brake pedal is not p ressed down.
- The veh icle is stationary.
In this case, the activated low beam will be re­
p laced by the s ide marker lights. The side marker
lights will switch
off after appro ximately 30 mi­
nutes or when you lock the veh icle.
If the Start-Stop System has
not turned off the
engine or if you have sw itched the Start-Stop sys­
tem
off manually , the ignition will not be auto­
mat ica lly switched
off and the engine w ill contin­
ue to run~& .
& WARNING
Never allow the engine to r un in confi ned
spaces - da nger o f as phyxia tio n.
(D Tips
-
If you shift in to the D, Nor S posit ions after
shifti ng into reve rse, the veh icle must be driv­
en faster th an 6 mph (10 km/h) in order for
t he eng ine to swi tc h
off aga in.
D rivi ng
Switching the Start-Stop-System on/off
manually
Applies to: vehicles with Start-Stop-System
If you do not wish to use th e system, you can
switch it off manually.
Fi g. 93 Center console: Start-Stop -System button
.. To switch the Start-Stop-System off/on man­
ually, press the
l(A) ~ I button. The LED in the but­
ton turns on when the system is switc hed
off.
(D Tips
If you sw itch the system off during a stop
phase, the engine will start aga in automati­
cally .
Messages in the instrument cluster display
Applies to: vehicles with Start-Stop -System
Start-Stop system deactiv ated: Plea se restart
engin e manually
This message appears when spec ific conditions
are not met during a stop phase and the Start­
Stop-System will
not be able to resta rt the en­
gine.
If the Dor R selector leve r pos itions we re
engaged, P w ill be sele cted automatically. The
engi ne m ust be st arted wi th t he
I START ENGINE STOP! button .
Start-Stop s yst em : S y stem fault! Function un­
available
There is a malfunction in the Start-Stop-System.
Drive the vehicle to an a uthorized repair facility
for serv icing as soo n as poss ible to cor rec t the
malfunction .
87

Driving
Speed warning system
Introduction
The speed warning system helps you to stay un­
der 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 ex ­
ceeds the stored value by approximately 3 mph
(3 km/h). An indicator light . (USA models) .
(Canada models) in the instrument cluster dis­
p lay also tur ns on at the same time. The indicator
light •• turns off when the speed decreases
be low the stored maximum speed.
Setting a threshold is recommended if you would
like to be reminded when you reach a certa in
maximum speed. Situations where you may want
to do so include driving in a country with a gener ­
al speed limit or if there is a specified maximum
speed for winter tires.
(D Tips
Even though your vehicle is equipped with a
speed warning system, you should still watch
the speedometer to make sure you are not
driving faster than the speed limit.
Setting the threshold
You con set, change and delete the threshold in
the MMI.
.,. Select:
ICARI function button > Car systems
contro l button > Driver assist > Speed warning.
You can set any threshold between 20 mph (30
km/h) and 150 mph (240 km/h). Settings can
each be adjusted in increments of S mph (10 km/
h).
88
Cruise control system
Switching on
The cruise control system makes it possible to
drive at a constant speed starting at 20 mph (30 km/h) .
0
f
®l
0
Fig. 94 Contro l lever wi th se t but ton
Fig. 95 D isp lay : Selected speed
g M 0 ±
~
.,. Pull the lever to position (D <::> fig . 94 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
Iij;\1)~14 (US models) !Bl (Canadian models) ap­
pear in the instrument cluster display
c> fig. 95.
The display may vary, depending on the type of
display in your vehicle.
This information is also shown briefly in the
Head-up Display*.
The speed is kept constant via an engine output
adjustment or active brake intervention. ..,_

...,
A WARNING ,~ -
- Always pay attention to traffic even when
the cruise control is sw itched on. You are al­
ways respons ible for your speed and the dis­
tance between your vehicle and other
vehicles.
- For safety reasons, the cruise control should
not be used in the city, in stop-and-go traf­
fic, on twisting roads and when road condi­
tions are poor (such as ice, fog, gravel,
heavy ra in and hydroplaning) -risk of acci­
dent.
- T urn off the cruise control temporar ily 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 be­
cause the cruise control is overridden by the
driver's acceleration.
- If a brake system ma lfunction such as over­
heating occurs when the cruise control sys­
tem is switched on, the braking function in
the system may be switched off. The other
cruise control functions remain active as
long as the indicator light
mI!Jm (US mod­
els)
;ii (Canadian models) is on.
The brake lights illum inate as soon as the
brakes decelerate automatically.
Changing speed
.,. To increase/decrease the speed in increments,
tap the lever in the
010 direction Q page 88,
fig. 94.
.,. To increase/decrease the speed quickly, hold
the lever in the
010 direction until the de­
sired speed is displayed.
You can a lso press the accelerator pedal down to
increase your speed, e.g. if you want to pass
someone . The speed you saved earlier will re-
"' sume as soon as you release the accelerator ped-
o
~ al. .... oJ) Lil
.... oJ) ....
Driving
If, however, you exceed your saved speed by
6 mph (10 km/h) for longer than S minutes, the
cruise control w ill turn off temporarily. The green
symbol
AiW~1~ (US models) ! l'I in the display is
rep laced with a white symbol. The saved speed
remains the same .
Presetting your speed
You can preset your desired speed while the vehi­
cle is not moving.
... Switch on the ignition.
.,. Pull lever into position
(D q page 88, fig. 94.
.,. Press the lever in the 0 or 0 direction to in-
crease or decrease your speed .
.,. Release the lever to save that speed.
This function makes it possible, for example, to
save the speed you want before driving on the highway . Once on the highway, activate the
cruise control by pulling the lever toward
(D.
Switching the system off
Temporary deactivation
.,. Press the brake pedal, or
.,. Press the lever into position@ (not clicked into
place)
q page 88, fig. 94, or
.,. Dr ive for longer than S min utes a t more than
S mph (10 km/h) above the stored speed.
Switching off completely
.,. Press lever into pos it ion @ (clicked into p lace),
or
.,. Switch the ignition off .
The system retains the saved speed if you deacti­
vate the cruise control temporarily. To resume
the saved speed, release the b rake pedal and pull
the leve r to position (!).
Switching the ignition off erases the saved speed.
A WARNING
You should only return to the saved speed ifit
i s not too fast for the current traffic condi­
tions - risk of an accident!
89

Audi adaptive cruise control and braking guard
.. You must also press the brake pedal when the
vehicle is stopped .
Switching adaptive cruise control off
.. Push the lever away from you into position @
until it clicks into place. The message
ACC off
appea rs.
@ Indicator lights
II-Adapt ive cru ise control is switched on . No
vehicles are detected up ahead. The stored speed
is ma inta ined .
• -A moving vehicle is detected up ahead . The
adapt ive cruise control system regulates the
speed and distance to the moving vehicle ahead
and accelerates/brakes automatically.
(-) -Adaptive cru ise control is switched on . A
mov ing vehicle up ahead was detected . Your veh i­
cle remains stopped .
• -When automatic braking is not able to keep
enough d istance to a previously detected moving
veh icle up ahead, you must take control and
brake
c::> page 95, Prompt for driver interven­
tion.
© Display
If adaptive cruise control is not shown in the dis­
play, you can call it up with the multifunction
steer ing wheel buttons c::>
page 23.
Based on the symbols in the display, you can de­
termine if the system is ma inta ining a distance to
the vehicle ahead and what that distance is.
No vehicle -No vehicle ahead was detected.
White vehicle -A vehicle ahead was detected.
Red vehicle -Prompt for the driver to take action
c::>page 95.
Both arrows on the scale © indicate the distance
to the vehicle ahead. No arrow appears when the
vehicle is on an open road and there is no object
ahead . If an object is detected ahead, the arrow
moves on the scale .
The green zone on the scale shows the stored dis­
tance . For information on chang ing the stored
distance, refer to
c::> page 94. If the distance se-lected is too
close or may soon become too close,
the arrows move into the red zone on the scale .
A WARNING
Improper use of the adaptive cruise control
can cause collisions, other accidents and seri­
ous personal injuries.
- Pressing the
ISETI button when driving at
speeds below 20 mph (30 km/h), will auto­ matically accelerate the ve hicle to 20 mph
(30 km/h), which is the minimum speed
that can be set.
(D Tips
-If you switch the ignit ion or the adaptive
cruise control off, the set speed is erased
from the system memory .
- You cannot switch the Electronic Stabiliza­
tion Control (ESC) to the SPORT mode when
adaptive cruise control is switched on .
Changing the speed
Applies to: vehicles with Aud i adapt ive cru ise control
0
f
•
0
Fig. 102 Selector lever: chan gin g t he speed
.. To increase or reduce the speed in increments,
tap the lever up or down .
.,. To increase or reduce the speed quickly,
hold
the lever up or down until the red LED@reach­
es the desired speed c::>
page 92, fig. 101.
Following any changes, the new stored speed will
be displayed br iefly in the display @c::>
page 92,
fig. 101 .
93

Audi adaptive cruise control and braking guard
The distances provided are specified values . De­
pending on the driving situation and the how the
vehicle ahead is driving, the actual distance may
be more or less than these target distances.
The various symbols for the time increments ap­
pear briefly in the information line@~
page 92,
fig. 101 when you change the settings.
~-~ --- Distance 1: This setting corresponds
to a distance of 92 feet/28 meters when travel­
ing at 62 mph (100 km/h), or a time interval of 1
second.
~ -- ~-- Distance 2: This setting corresponds
to a distance of 118 feet/36 meters when travel­
ing at 62 mph (100 km/h), or a time interval of
1.3 seconds .
~--- ~-Distance 3: This setting corresponds
to a distance of 164 feet/SO meters when travel­
ing at 62 mph (100 km/h), or a time interval of
1.8 seconds.
~ ---- ~ Distance 4: This setting corresponds
to a distance of 210 feet/64 mete rs when travel­
ing at 62 mph (100 km/h), or a time interval of
2 .3 seconds.
.&_ WARNING
Following other vehicles too closely increases
the risk of col lisions and ser ious personal in­
jury.
- Setting short distances to the traffic ahead
reduces the t ime and distance available to
bring your vehicle to a safe stop and makes
it even more necessary to pay close atten­
tion to traffic.
- Always obey applicable traffic laws, use
good judgment, and select a safe following
distance fo r the traffic, road and weather
con ditions.
(0 Tips
-Distance 3 is set automatically each time
you switch the ignition on.
- Your standard sett ings are automatically
stored a nd assigned to the remote control
key being used.
Selecting the driving mode
Applies to: vehicles with Audi adaptive cruise control
• Select the desired driving mode in drive select
~page 106.
(D Tips
Your settings are automatically stored and as­
signed to the remote control key being used.
Prompt for driver intervention
Applies to: vehicles with Audi adaptive cruise control
Fig . 105 Instrument cluste r: request for driver interve n­
tio n
In certain situations, the system will prompt you
to take action. This could happen, for example, if
braking by the adaptive cruise control system is
not enough to maintain enough distance to the
vehicle ahead.
T he ind icator light . and the symbol in the dis ­
play will warn you about the situation~
fig. 105.
You will also hear an acoustic signal.
- Press the brake pedal to slow your vehicle
down .
95