brake AUDI S8 2013 User Guide
[x] Cancel search | Manufacturer: AUDI, Model Year: 2013, Model line: S8, Model: AUDI S8 2013Pages: 318, PDF Size: 79.34 MB
Page 85 of 318

the stored position as soon as you switch on
the ignition.
Starting and stopping
the engine
Starting the engine
This button switches on the ignition and
starts the engine.
Fig. 85 Center console: S TART ENGINE S TOP b utton
Switching the ignition on/off
• To switch the ignition on/off, press the
I START ENGINE STOPI button. Do not press
the brake pedal while doing this.
Starting the engine
• Press the brake pedal QA .
• Press the !START ENGINE STOPI button
Q fig . 85. The engine will start.
If the engine does not start immediately, the
starting process is automatically stopped afÂ
ter a short time. Repeat starting procedure.
Start-Stop-System*:
When you stop and the Start -Stop -System*
turns off the engine, the ignition still remains
switched on.
- If you press the !S TART ENGINE STOPI butÂ
ton now, the ignition will be switched off.
The engine will not start
¢page 89.
- Make sure that the ignit ion is switched off
before exiting the vehicle.
Switching the ignition/engine off
automatically*
The follow ing applies to vehicles with StartÂ
Stop-System*: to prevent the battery from
On the road 83
draining, the ignition and the engine will
switch off automatically under the following
cond itions:
- The vehicle has already been driven.
- 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 reÂ
placed by the side marker lights. The side
marker lights will switch off after a certain peÂ
riod of time or when you lock the vehicle .
A WARNING
-Never allow the engine to run in conf ined
spaces -danger of asphyx iation.
- Never turn off the engine until the vehiÂ
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 usualÂ
ly would, this could lead to crashes and
serio us injuries.
(D Note
- Avo id h igh engine rpm, full throttle and
heavy engine loads until the engine has
reached operating temperature - otherÂ
w ise you risk engine damage.
- The engine cannot be started by pushing
or towing the vehicle.
@ Tips
-After a co ld engine is started, there may
be a brief period of inc reased noise beÂ
cause oil pressure must first build up in
the hydraulic valve adjusters. This is norÂ
ma l and not a cause for concern.
-If you leave the vehicle with the ignition
switched on, the ignition w ill switch off
after a certain period of time. Please
note that electrical equipment such as
exterior lights will sw itch off as well
when that happens.
Page 86 of 318

84 On th e road
Stopping the engine
• Bring your vehicle to a complete stop.
• Move the selecto r lever to the P or N posiÂ
t ion .
• Pre ss the I START ENGINE STOP I button
¢ page 83, fig. 85.
When you s top and the Sta rt- Stop -Sys tem*
turns off the engine, the ignit ion remains on .
Press the
I STAR T ENGINE ST OP I button to
switch the ignition off during a stop phase.
Steering lock
The stee ring lo cks w hen you t urn the engine
off using the
I S TART ENGINE STOP I button
and open the dr iver's door . The locked steerÂ
ing helps prevent vehicle theft .
Emergency off
If necessary, the eng ine ca n be sw itched off
with the selector lever in the R, Dor S pos iÂ
tions . The eng ine stops if you press the
I START ENGINE STOP ! button at speeds be low
6 mph (10 km/h) .
A WARNING
-Never turn off the engine before the veÂ
hicle has come to a complete stop. The
full function of the brake booster and the power steering is not quara nteed. You
must use more force to turn or b rake if
necessary. Because you cannot stee r and
brake as you usua lly would, th is could
lead to c rashes and serious injur ies.
- For safety reasons, you shou ld always
par k your vehicle with the se lector lever
in P. Otherwise, the ve hicle co uld i nadÂ
vertent ly roll away .
- After the engine has been switched off,
the radia tor fan can continue to run fo r
up to 10 min utes -even with the ign it ion
switched off. It can a lso switch on again
after some time if the coolant temperaÂ
ture rises as the result of a heat buildup
or if the engine is hot and the engine
compartment is addit ionally heated by
the su n's rays.
(D Note
Do not stop the eng ine immediately after
hard or extended driving . Keep the eng ine
runn ing for approximate ly two minutes to
prevent excess ive heat bu ild-up.
Driver message in the instrument
cluster display
Ignition i s on
This message appears and a warning tone
sounds if you open the driver's door when the
ignition is sw itched on.
Press brake pedal to start eng ine
This message appears if you press the
I START ENGINE STOPI button to start the enÂ
gine and do not depress the brake pedal. The
engine can only be started if the brake pedal
is depressed .
!!I Is key in the vehicle ?
If the indicator ligh t turns on and the mesÂ
sage appears, the remote control key was reÂ
moved from the vehicle whi le the engine was
runn ing . If the ignition key is not in the veh iÂ
cle you will not be able to switch on the igniÂ
tion or restart the engine after it has bee n
switched off . You will also not be able to lock
the ve hicle from the outs ide .
Shift to P , othe rwise v ehicle can roll away.
Doors do not lock if le ver is not in P .
This driver message appears for safety rea Â
sons if the transmission has not been shifted
to the P position when you switc h the ignition
off . Move the selector lever to the P position.
O therwise the vehicle is not p rotected from
r o ll ing a nd ca nnot be locked.
rJl Ke y i s not recognized . Hold back of ke y
aga inst marked area. See owner's manual.
If the indicator light turns on and this mesÂ
sage appears, there is a malfunct ion
¢ page 85.
Tu rn off ignition before leaving c ar
Page 87 of 318

This message appears if the driver's door is
opened while the ignition is switched on . AlÂ
ways sw itch
off the ignition if you are leaving
the vehicle . See also
<=:> page 83.
Shift to P and turn off ignition before leavÂ
ing car , otherwise vehicle can roll away
This message appears if the driver's door is
opened while the ignition is sw itched on and
the selector lever is not in the P position. Shift
the selector lever into the P position and
sw itch
off the ign ition when you ex it the vehiÂ
cle . Otherwise the vehicle could ro ll. See al so
¢page 83.
Starting the engine if there is a
malfunction
It may not be possible to start the engine un Â
der certain circumstances, for example if the
battery in the vehicle key is drained, if interÂ
ference has affected the key or if there is a
system malfunction .
I
----- ~
Fig . 86 Ce nter conso le /maste r key: starting th e en gine
if th ere is a malfunction
Requirement : The message Key not recogÂ
nized. Hold back of key against marked area.
See owner's manual.
must appear and the inÂ
d icato r
light m) must switch on.
• Hold the master key vert ical ly in the locaÂ
t ion indicated
y>l) c::> fig. 86.
• Press the brake pedal c::> &. in Starting the
engine on page 83.
... press the ""I s=-= T,,.,A -= R=-= T =- E= N ,-,..,= G=I '""' N -=E '""'s=-= T,,., O""' P""' I button .
The engine will start .
• Drive to your authorized Audi dealer immeÂ
diately to have the malfunction correc ted .
On the road 85
@ Tips
You can view the message again by pressÂ
i ng the
I START ENGINE STOP! button.
Electromechanical
parking brake
Operation
The electromechanical parking brake replaces
the hand brake.
Fig. 87 Center co nsole: Parking b rake
• Pull on the switch C®l ¢ fig. 87 ® to apply
the parking brake. The indicator light in the
switch illuminates.
• Step on the brake pedal or the accelerator
pedal and press the switch ©lat the same
time to release the park ing brake. The indiÂ
cator light in the switch goes out.
Your vehicle is equipped with an electrome chanical parking brake . The parking brake is
designed to prevent the veh icle from rolling
unintentionally and replaces the hand brake .
In add ition to the normal functions of a tradiÂ
tional hand brake, the electromechanical
parking brake provides various convenience
and safety functions.
When starting from rest
-The integral starting a ss ist helps you when
dr iving by automatically releasing the parkÂ
ing brake
¢ page 86, Starting from rest .
-When starting on inclines, the starting as -
sist prevents the vehicle from unintentional-
ly rolling back. The braking force of the
park ing brake is not re leased until sufficient
1111-
Page 88 of 318

86 On the road
driving force has been built up at the
wheels.
E mergency brake function
An emergency brake ensures t hat the vehicle
can be slowed down even if the
normal brakes
fail
c::> page 87, Emergency braking .
Indicator lights
-If the parking b rake is closed w ith the igniÂ
t ion
sw itch ed on the indicator lights come
on - (USA models)/ . (Canada models)
i n the i nstr ument cluster and in the switch .
- If the par king brake is closed w ith the igniÂ
t ion
s wit ched off the indicato r lights come
on - (USA models)/ . (Canada models)
in the instrument cluster and in the switch
for about 20 seconds.
.&_ WARNING
Do not press the accelerator peda l inadverÂ
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
immed iate ly and could result in a crash .
@ Note
If the symbo l. in the display or the ind iÂ
cator light
1111 (USA models) . (CanaÂ
da models) in the instrument cluster flashÂ
es, there is a malfunction in the brake sysÂ
tem . Please refer to the detai led descripÂ
tion of the indicator lights
c::> page 14.
- If the indicato r light - (USA mod-
els) . (Canada mode ls) or
liJ turns
on, there may be a malfunction in the parking b rake
c::> poge 15.
(D Tips
- You can apply the pa rking brake at any
t ime - even w ith the ignition switched
off . T he ignit ion must be on in order to
r elease the parking brake.
- Occ asiona l noises when the par king
brake is applied and re leased are no rma l
and are not a ca use for concern .
- When the vehicle is par ked, the par king
brake goes through a se lf -test cycle at regu
lar interva ls. Any associated noises
are normal.
Parking
Parking
.,. Stop the vehicle with the foot brake .
.,. Pull the switch(®) to apply the parking
brake.
.,. Select the P selector lever position
c::>page 115.
.,. Turn the engine off c::> _&. .
In addit ion on inclin es and g rades
.,. Turn the steering whee l so that your vehicle
w ill roll aga inst the curb in ca se it should
start to move.
.&_ WARNING
- When you leave your vehicle - even if onÂ
ly br iefly - always take the ignit io n key
wit h you. This applies pa rticularly when
children remain in the vehicle. Otherwise
the children co uld s tart the engine, reÂ
lease the parking brake or operate elec Â
trica l equipment (e.g . power windows) .
There is the r isk o f an accident.
- When the vehicle is locked, no one - parÂ
ticularly not children should rema in in
the vehicle. Locked doors make it more
d ifficult for emergency workers to get inÂ
to the vehicle - putting lives at risk .
· Starting from rest
The starting assist function ensures that the
parking broke is released au tomatically upon
star ting.
Stopping a nd applying parking brak e
.,. Pull the switch(®) to apply the parking
brake.
St arting and automatically releasing the
parking brake
.,. When you start to drive as usual , the parkÂ
ing brake is a utomatically rel eased and your
vehicle beg ins to move. ..,..
Page 89 of 318

When stopping at a traffic signal or stopp ing
i n city traffic, the parking brake can be apÂ
p lied . The vehicle does not have to be held
with the footbrake. The park ing brake elimiÂ
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 slopes
When starting on inclines, the start ing ass ist
prevents the vehicle from unintentionally rollÂ
i ng back. The braking force of the parking
brake is not released until sufficient dr iv ing
force has been bu ilt up at the whee ls.
O') Tips
For safety reasons, the park ing brake is reÂ
leased automatically only when the dr ivÂ
er's safety belt is engaged in the buck le.
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 park ing brake stays applied
and prevents the vehicle from rolling backÂ
ward .
.. You can release t he sw itch C®l once you are
s u re that yo u are develop ing eno ugh f orÂ
wa rd momentum at the wheels as you deÂ
press the accelerator.
D epending on the weight of the r ig (veh icle
and trai le r) and the severi ty of the in cli ne, you
may roll backwards as you sta rt. Yo u can pre Â
ve nt roll ing backwards by holding the parking
brake switch C®) p ulled out and acce lerating -
just as you would when starting on a hill with
a conventional hand brake.
On th e ro ad 87
Emergency braking
In the event that the conventional brake sysÂ
tem fails or locks .
.. In an emergency, pull the sw itch(®) and
cont inue to pull it to s low your ve hicle down
w ith the park ing brake.
.. As soon as you release the switch C®> or ac-
celerate, the b ra ki ng process stops.
If you pu ll the switch C®> and hold it above a
speed of about 5 mph (8 km/h), the emergenÂ
cy brak ing f unction is initia ted . T he ve hicle is
braked at all fou r whee ls by activating the hyÂ
d raulic brake sys tem. The brake pe rform ance
is simila r to making an emergency stop~ .&..
In order not to act ivate the emergency brakÂ
ing by mis take, an audib le wa rn ing tone (buzÂ
z er) so unds whe n the switch(®) is pulled . As
soon as the sw itch<®> is re leased, or the accelÂ
erator peda l is depressed, emergency braking
stops.
_& WARNING
Emergency braking should only be used in
an emergency, when the normal foot bra ke
has fa iled or the brake pedal is obstructed.
Using the parking brake to pe rform emerÂ
gency b rak ing will slow your vehicle down
as if you had made a full bra ke application .
T he laws of physics cannot be su spended
even wi th ESC and i ts asso ciated compoÂ
nents (ABS, ASR , ED L) . In corners and
when road or weather con ditions are bad,
a full brake application can ca use the vehiÂ
cle to sk id or the rear end to break away -
risking an accident.
Start-Stop-System
Description
Applies to veh icles: w ith Start -Stop-System
The Sta rt -Stop -Sys tem can help incre ase fuel
e conomy and redu ce CO2 emissions.
In the Start-S top-mode, the engine shuts off
a utomat ically when the veh icle is stopped,
s u ch a s at a t raff ic lig ht. The igni tion rem ains
lill-
Page 90 of 318

88 On the road
switched on during this stop phase. The en Â
gine will be automatically restarted when
needed.
The last Sta rt-Stop -System setti ng (on/off usÂ
ing the button
l(A) ,.,I) wi ll be restored when the
ignition is turned on. The LED in the
l(A) "'I butÂ
ton turns on when the Start-Stop -System is
switched off manua lly.
Basic requirements for the Start-Stop
mode
- The driver's door is closed .
- The driver' seat be lt is latc hed.
- T he hood is closed.
- T he veh icle must have been driven faster
than 2.5 mph (4 km/h) since the last stop.
- A trai ler is not hitched to the vehicle.
A WARNING
-Never let the vehicle roll with the engine
switched off. You could lose cont rol over
the vehicle . This can lead to a coll ision
and serious injuries .
- Th e brake booster and the steer ing supÂ
port do not work while the eng ine is
switched 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 engine compartÂ
ment¢
page 89.
(D Note
Always switch off the Start-Stop -System
when driv ing th rough water~
page 89.
Starting/stopping the engine
Applies to vehicles: w ith Start -Stop -System
Fig. 88 Instrument clus ter: engine sw itche d off (s top
phase)
.. Slow the veh icle to a stop using the brake
and keep pressing the brake pedal. The enÂ
g in e will sw itch off. The
D] indicator light
appears in the information line in the instruÂ
ment cluster display.
.. When you take your foot off the brake ped Â
al, the engine restarts. The indicator light
turns off.
Additional information
The engine will switch off in the P, D, N and S
positions as well as in manual mode . In the P
pos ition, the engine wi ll also remain off if you
take yo ur foot off the brake pedal. The engine
starts again when you select another selector 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 un intentionally when sh ifting
through R.
You can determine for yourself if the engine
will stop or not by reducing or increasin g 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 veh icle is stationary. As soon as you
press the brake down ha rder, the engine wi ll
swit ch off. ..,
Page 91 of 318

@ Tips
When you stop and the start-stop-system
turns the engine off, the ignition remains on. Make sure that the ign ition is switched
off before exiting the vehicle.
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. 89 Instrument cluster : eng ine-Stop temporar ily
u navailable
Engine will not switch off
Before each stop phase, the system checks if
certain cond itions have been met . For examÂ
p le, 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 interio r temperature selected by the A/C
system has not been reached.
- Th e outside temperature is extremely h igh/
low.
- The windshield is being defrosted
9page 81.
- The parking system* is switched on.
- The battery charge level is too low .
- The steering wheel is sharply turned or there is a steer ing movement.
- After engaging the reverse gear.
- On sharp inclines .
The
(jj indicator light appears in the informaÂ
tion line in the instrument cluster display
9fig. 89.
On the road 89
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 windsh ield is being defrosted
9page 81.
-The brake pedal is pressed severa l times in a
row.
- The battery charge level becomes too low .
- High power consumpt ion.
@ Tips
If you shift into the D, Nor S positions afÂ
ter sh ifting into
reverse, the vehicle must
be driven faster than 6 mph (10 km/h) in
order for the engine to sw itch off aga in.
Switching the Start-Stop-System on/off
manually
App lies to vehicles: wi th Start-Stop-Sys te m
If you do not wish to use the system, you can
switch it off manually.
Fig. 90 Center console: Start-Stop-System button
.,. To switch the Start-Stop-System off/on
manually, press the
l "'I button. The LED in
the button turns on when the system is
sw itched off.
@ Tips
If you switch the system off during a stop
phase, the engine will start again autoÂ
matically.
Page 93 of 318

The stored speed and the indicator light
A;(l)~i4 (US mode ls) 8 (Canad ian mode ls) apÂ
pear in the instrument cluster d isp lay
¢ fig. 92. The display may vary, depending on
t he type of d isplay in your vehicle.
The speed is k ept constant via an engine outÂ
put adjustment or act ive 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 vehicles.
- For safety reasons, the cruise control
should not be used in the city, in stopÂ
and-go traff ic, on twisting roads and
when road conditions are poor (such as
ice, fog, grave l, heavy rain and hydro Â
planing) -risk of accident .
- Turn off the cruise control temporari ly
when entering turn lanes, highway exit lanes or in construction zones.
- Please note that inadvertently "rest ing "
yo ur foot on the accelerator peda l causes
the cruise control not to brake. This is
because the cruise control is overridden
by the driver's acce leration.
- If a brake system malfunction such as
overheating occurs when the cruise conÂ
trol system is sw itched on, the braking
function in the system may be switched
off. The other cruise control functions reÂ
main active as long as the indicator light
[~jlQ~i4 (US models) I ii (Canad ian modÂ
els) is on.
The brake lights illuminate as soon as the brakes decelerate automat ically .
Changing speed
" To increase/dec rease the speed in increÂ
ments , tap the lever in the
0 10 d irection
¢ page 90, fig. 91 .
On the ro ad 91
" To increase/decrease the speed quick ly,
hold the lever in the
0 10 direction until
the desired 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 earlier
will resume as soon as you release the accele rÂ
ator pedal.
If, however, you exceed your saved speed by
6 mph (10 km/h) for longer than S minutes,
the cruise contro l wi ll turn off temporari ly.
The green symbol
A;(l )~i4 (US models) 8 i n
the d isplay is replaced with a white symbol.
The saved speed remains the same .
Presetting your speed
You can preset your desired speed while the
vehicle is not moving .
" Switch on the ignition.
" Pull lever into posit ion
(D ¢ page 90,
fig . 91 .
" Press the lever in the 0 or 0 direction to
increase 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 dr iving on
the h ighway. Once on the highway, act ivate
the cru ise con trol by pulling the lever toward
(D .
Switching the system off
T e mpor ary dea ctivat ion
" Press the brake pedal , or
" Press the lever into position @(not clicked
into place)
¢ page 90, fig. 91 , or
" Drive for longer than 5 minutes at more
than 5 mph (10 km/h) above the stored
speed.
S w itching off complet ely
" Press lever into position @(clicked into
place), or
" Switch the ignition off .
Page 95 of 318

Audi adapt ive crui se c ontrol an d bra kin g guard 9 3
Audi adaptive cruise
control and braking
guard
Introduction
App lies to vehicles: with Audi adaptive cruise control
The adaptive cruise control system assists the
driver by regu lating vehicle speed and helping
to maintain a set distance to the vehicle
ahead, within the limits of the system . If the
system detects a moving vehicle up ahead,
adaptive cruise control can brake and then acÂ
celerate your vehicle. This helps to make drivÂ
ing more comfortable both on long highway
stretches and in stop-and-go traffic.
The braking guard system can warn you about
an impending collision and initiate braking
maneuvers ¢
page 99.
Adaptive cruise control and braking guard
have technical limitations that you must
know, so please read this section carefully, unÂ
derstand how the system works and use them
properly at all times.
General information
General information
Applies to vehicles: with Audi adaptive cruise control
Fig. 93 Front of the vehicle: sensors and video came ra
The areas that contain the radar and ultrason Â
ic sensors and the v ideo camera ¢
fig. 93
must neve r be covered by stickers or other obÂ
jects or obstructed with dirt, insects, snow or
ice that will interfere with the adaptive cruise
control system and braking guard. For inforÂ
mation on cleaning, refer to ¢
page 218. The same applies for any modifications made in
the front area.
T he function of the adaptive cru ise contro l
system and braking guard is limited under
some conditions:
- Objects can on ly be detected when they are
w ith in sensor range
¢page 95, fig. 96 .
-The system has a limited ability to detect
objects that are a shor t distance ahead,
off
t o the side of your vehicle or moving into
your lane.
- Some kinds of ve hicles are hard to detect;
for examp le motorcycles, vehicles with high
ground clearance or overhanging loads may
be detected when it is too late or they may
not be detected at all.
- When driving through curves
¢page 94 .
- Stationary objects¢ page 94.
& WARNING
Always pay attent ion to traffic when adap Â
tive cruise control is switched on and brak ing g uard is active. As the driver, you are
still respons ible for starting and for ma inÂ
taining speed and distance to other obÂ
jects . Braking guard is used to assist you .
The driver must always take action to avo id
a collision. The driver is always responsible
for braking at the co rrect time.
- Improper use of adaptive cru ise control
can cause collisions, other acc idents and
serious pe rsonal in jury.
- Never let the comfort and conven ience
that adaptive cruise control and braking
guard offer d istract you from the need to
be alert to traffic condit ions and the
need to rema in in full control of your veÂ
hicle at all times,
- Always remember that the adaptive
cruise control and braking guard have
limits -they will not s low the vehicle
down or maintain the set distance when
you drive towards an obstacle or someÂ
thing on or near the road that is not
mov ing, such as vehicles stopped in a
traffic jam, a stalled or disabled vehicle .
I f registered by the radar sensors,
Page 96 of 318

94 Audi adapti ve cruise control and bra king gu ard
vehicles or obstacles that are not moving
can trigger a collision warning and if conÂ
firmed by the v ideo camera, an acute colÂ
lis ion warn ing .
- For safety reasons, do not use adaptive
cruise co ntrol when driving on roads with
many curves, when the road surface is in
poor condit ion and/or in bad weather
(such as ice, fog, gravel, heavy rain and
hydroplan ing) . Using the system under
these cond it ions cou ld result in a co lli Â
sion .
- Swi tch adap tive c ruise control off tempoÂ
rar ily when driv ing in turning lanes, on
expressway exits or in construction
zones . This prevents the vehicle from acÂ
celerat ing to the set speed when in these
situations.
- The adapt ive cruise control system wi ll
not brake by itse lf if you put your foot on
the accelerator pedal. Doing so can overÂ
ride the speed and d istance regulation .
- When approaching stationary objects such as stopped traff ic, adaptive cruise
co ntrol will not respond and braking
guard w ill have limited function.
- The adapt ive cruise control system and
braking guard do not react to people, anÂ
imals, objects c rossing the road or onÂ
coming objects .
- The function of the radar senso rs can be
affected by reflective objects such as
guard rai ls , the entrance to a tunnel,
heavy rain or ice.
- Never follow a ve hicle so closely that you
cannot stop your vehicle safe ly. The
adaptive cruise contro l canno t slow or
brake the vehicle safely when you follow
another vehicle too closely. Always reÂ
member that the automatic braking
function cannot br ing the vehicle to a
sudden or emergency stop under these condit ions.
- To prevent unintended operation, always switch ACC off when it is not being used. (D Note
The sensors can be displaced by impacts or
damage to the bumper, wheel housing and
underbody. That cou ld affect the adaptive
cruise control system and brak ing guard.
Have your authorized Aud i dea ler or au Â
thorized Audi Service Facility check their
funct ion .
In curves
Applies to vehicles: with Audi adaptive cru ise contro l
I
Fig. 9 4 Exampl e: dri ving in to a curve
When d riving into a curve c> fig. 94 and out of
a curve, the ad aptive cruise control may react
to a vehicle in the next lane and apply the
brakes. You can override or prevent the brakÂ
i ng by pressing the acce lerator pedal b riefly .
' Stationary objects
Applies to vehicles: with Audi adaptive cruise control
Fig. 95 Exampl e: objec t ch anging l anes and sta tio nar y
object
T he adaptive cru ise control system only reacts
to objects that a re mov ing o r that the system
has already detected as moving . For examp le,
if a vehicle @, which has already been detect-
ed by the adaptive c ruise contro l, tu rns or
ch anges lanes and another stationary vehicle .,.