2017 AUDI A7 brake

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Switching on/off
App lies to: vehicles with Audi adaptive cruise contro l
Fig. 9 4 Operat ing leve r: sw itching o n and off
Fig. 95 Inst rument cluste r: adaptive cruise contro l
You can set any speed between 20 mph (30 km/
h) and 95 mph (150 km/h) .
Indicator lights and messages in the instrument
cluster display inform you about the current sit­
uation and setting.
An addit ional indicator appears in the Head-up
d isplay* .
Switching adaptiv e cruise control on
.,. Pull the lever toward you into position @
¢
fig . 94. ACC: standb y appears in the display.
Saving the speed and activating regulation
.. To save the current speed, p ress the ISETI
¢ fig . 94 button . The stored speed is shown in
the speedometer in the L ED l ine @ and appears
briefly in t he information line @ ¢
fig. 95 .
.,. To activate the regu lation whi le stationary, also
press the brake peda l.
Switching adaptive cruis e control off
.,. Push the lever away from you in to posi tion @
u nt il it clicks i nto place. The message
ACC : off
appears.
A ss ist
@ Indic ato r light s
•-adaptive cruise control is switched on. No
objects are detected ahead . The stored speed is
maintained .
• - An object ahead was detected . The adaptive
c ruise contro l system regu lates the speed and
distance to the object ahead and accelerates/
brakes automatically .
f:i-adaptive cruise control is switched on. An
object ahead was detected. Your vehicle remains
stopped and will not sta rt driving automatically .
• -The automatic braking is not enough to
mai ntai n a sufficie nt dis tance to an obje ct ahead.
You must intervene ¢
page 94, Request for
driver intervention .
© Instrument cluster display
If adaptive cru ise control is not shown in the in­
strument cl uster d isplay, you can call it up using
t h e m ultif unction steer ing whee l butto ns
¢page 21.
Based on the graphics in the display , you can de­
te rm ine if the system is maintain ing a distance to
t h e object ahead and what that d ist ance is .
No vehicle -No object ahead was detected .
White veh icle -An object ahead was detected.
Red vehicle -Request for driver intervention
~page 94.
Both arrow s on the scale © indicate the distance
to the object ahead. No arrow appears w hen the
vehicle is on an open road and t here is no object
ahead . If an object is detected ahead, the arrow
moves on the sca le .
The green zone on the s cale i ndicates the store
distance . For information on changing the dis ­
tance, refer to ¢
page 93. If the distance se ­
lected is exceeded or not reached , the arrow
moves into the red zone on the scale .
A WARNING
~~ --
If you press the !SET ! button when driv ing at
speeds below 20 mph (30 km/h), the vehicle
accelerates automatically up to 20 mph (30
91

Ass is t
km/h), which is the minimum speed that can
be set.
(D Tips
- If you switc h the ignition or the adapt ive
cruise control system off, the set speed is
erased for safety reasons.
- The electronic stabilization control (ESC)
and the anti-slip -regulation (ASR) are auto­
matically sw itched on when the adaptive
cruise control is switched on.
Changing the speed
Applies to: vehicles with Aud i adapt ive cruise control
0
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F ig. 96 Operat ing lever: changing the speed
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.. To increase or red uce the speed in increments,
tap the lever up or down.
.. To increase or decrease the speed quickly,
hold
the lever up or down until the red LED@ reach­
es the desired speed
¢ page 91, fig . 95 .
After each change, the new stored speed appears
briefly in the information line ¢
page 91, fig. 95
@.
Driving in stop-and-go traffic
Applies to: veh icles with Aud i adapt ive cruise control
The adaptive cruise contro l system also assists
you in stop-and-go t raff ic.
Stopp ing automatically
If an object ahead stops, your veh icle w ill brake
and stay at a stop, w ith in the limits of the sys­
tem. The Start/Stop system* can be used as usu­
al.
92
Driving m anually
.. Tap the accelerator pedal, or
.. pull the lever toward you into pos ition @.
@ Tips
If an obst acle is detected when you r vehicle
starts moving, the dr iver intervent ion reques t
appears¢
page 94 . Your vehicle will drive
more slowly when starting. T his may a lso
h appen in some situations when there is no
apparent obstacle.
Interrupting cruise control
Applies to: vehicles with Audi adaptive cruise control
F ig . 9 7 Se lector lever
Requirement: adaptive cruise control must be
switched on .
Overriding cruise control
.. To accelerate ma nually, pull the lever toward
you into posit ion @ and hold it there . The mes­
sage
ACC: override appears. Or
.. press the accelerator peda l.
.. To resume cruise control, release the lever or
take your foot off the accelerator pedal.
Cancelin g cruise control whil e dri ving
.. Move the lever into position @. The message
ACC: standb y appears . Or
.. press the brake pedal.
.. To resume the stored speed, move the lever in­
to position @.
Canceling cruise control when stopped
.. Push the lever away from you into position @.
T he message
ACC : standby appears. ..,.

Ass is t
@ Tips
Your settings are automatica lly stored and as­
signed to the remote control key be ing used .
Request for driver intervention
App lies to: ve hicles w ith Audi adaptive cruise co ntro l
Fig . 99 Instrum ent clus te r: r eq ues t fo r drive r interve ntio n
In certain situations, the system w ill request you
to take action :
- if t he braking from the adapt ive cr uise control
system is no t enough to maintai n enough dis­
tance to the object ahead.
The dange r is ind icated by the . indicator light
~ fig. 99. An audio s ignal will also sound.
- Press the brake pedal to slow your vehicle down .
Audi braking guard
Applies to: ve hicles w ith Audi adaptive cruise co ntro l
Fig . 100 In str um ent clus te r: appro ach warning
The braking guard uses radar sensors and a video
camera .
It also functions within the limits of the
l) This is no t a vail able in som e coun trie s.
94
system when adaptive cru ise control is switched
off.
What can the braking guard do ?
When detected in time, the system can assess
dange rous si tu at ions where an object ahead
brakes sudden ly or if yo ur own vehicle is trave ling
at a h igh speed and approach ing an ob ject that is
moving more slow ly. The braking guard does not
react if it cannot detect the situation.
The system advises you of var ious dange rous sit­
uations :
- The
di stan ce warning occu rs if you dr ive too
close ly to the object ahead fo r a long per iod of
time .
If the object ahead brakes strongly, you
would not be ab le to avoid a co llis ion. The .
indicator light appears as an indication for this .
- T he
appr oach w arning occurs when an object
ahead is trave ling more slowly or brakes
strongly. When this warning occurs, it may only
be possible to avoid a collis ion by swerving or
brak ing strongly . The danger is indicated by the
• indicator light
¢fig. 100 . An audio signal
w ill also so und .
If you do not react early enough or at all to a dan ­
gerous situation, the braking guard supports you
with a braking intervention .
- If a co llision is imminent, the system wi ll first
provide an
acute warning by braking sharply .
- If you do not react to th e acute warning, the
b raking guard can inc rease the braking force
w ith in the lim its of the system
1> . This reduces
the vehicle speed in the event of a coll is ion.
- T he system can in itiate complete dece leration
shortly before a collision
l) . Full deceleration at
high speeds occurs only in veh icles with adap­
tive cruise control and side assist (pre se nse
plus) .
- If the braking guard determ ines that you are
not braking s trongly enough when the re is a n
impending coll is ion, it can increas e the b raking
force.
- The p re sense funct io ns also engage w hen
there is an impending collision ~
page 138.

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\.J ' Which functions can be controlled?
You can switch the braking guard and the dis­
tance/approach warning on or off in the Infotain­
ment system
c::, page 95 , Settings in the Info­
tainment system.
A WARNING
Lack of attention can cause collisions, other
accidents and serious personal injuries. The
braking guard is an assist system and cannot
prevent a collision by itself. The driver must
always intervene . The driver is always respon­
sible for braking at the correct time.
- Always pay close attention to traffic , even
when the braking guard is switched on . Be
ready to intervene and be ready to take
complete control whenever necessary. Al­
ways keep the safe and legal distance be­
tween your vehicle and vehicles up ahead.
- Braking guard works within limits and will
not respond outside the system limits, for
example when approaching a stopped vehi­
cle or stationary obstacle (end of a traffic
jam or vehicle that has broken down in traf­
fic).
- Always remember that the radar sensor for
the braking guard works only within defined
detection and range limits that may prevent
the proper detection of other vehicles .
- The radar sensor's function and range can
be reduced by rain, snow and heavy spray.
Moving vehicles up ahead may not be
promptly detected or may not be detected
at all.
- Reflective surfaces including crash barriers
or tunnel entrances may impair the function
of the radar sensor.
{!) Tips
- You can cancel the braking with increasing
force that is initiated by the system by brak­
ing yourself, by accelerating noticeably or
by swerving.
- Keep in mind that braking guard can brake
unexpectedly. Always secure any cargo or
objects that you are transporting to reduce
the risk of damage or injury .
Assist
Settings in the Infotainment system
Applies to: vehicles with Audi adaptive cruise control
.,. Select: the I CAR! function button > (Car)*Sys·
terns
control button > Driver assistance > Audi
braking guard.
System -
Switch the braking guard On/Off. When
you switch the ignition on, the message
Braking
guard: Off
appears if the system is switched off.
Early warning -The distance and approach warn­
ings in the display can be switched
On/Off.
(D Tips
- Your settings are automatically stored and
assigned to the remote control key being
used.
- If you restrict or switch off the ESC, the
braking guard also switches itself off
¢ page 121 .
-Switch braking guard off when you are load­
ing the vehicle onto a vehicle carrier, train,
ship or other type of transportation. This
can prevent undesired warnings from the
braking guard system.
Messages
Applies to : vehicles with Aud i adapt ive c ru ise control
Braking guard: Off
This message appears if the system is switched
off through the Infotainment system. Otherwise,
if the system is turned off, the information ap­
pears every time shortly after the start of the
trip .
The message also appears if the system is not
available due to a malfunction or if the ESC is
switched
off ¢page 121. If this is the case, the
system will not provide warnings about a possi­
ble collision.
Braking guard: engaged
This message appears if a sharp brake pressure
was applied due to an acute warning .
ACC: unavailable
ACC and Audi braking guard: Unavailable
95

Ass is t
The system cannot guarantee that it will detect
objects correctly and is switched off. The sensors
have been moved or are faulty. The pre sense
functions may also be affected. Dr ive to an au­
thor ized Audi dealer or authorized Audi Service
Facility immediately to have the malfunction cor ­
rected .
ACC: Currentl y unav ailabl e. No senso r vis ion
ACC and Audi braking guard : Curre ntly un avail­
a ble . No se nsor v ision
This message appea rs if the sensor view is ob­
s truc ted, for example by leaves, snow, heavy
spray or d irt. C lean the sensors ¢
page 89,
fig. 91.
ACC: Curre ntly unavailable. Gradient too steep
The road exceeds the max imum possible angle
for safe adapt ive cruise control operation . Adap­
tive c ruise contro l is switched off.
AC C: onl y availab le in D, S or M
Select the 0/5 or M selector lever position .
ACC: Currentl y unavailable . Parking brake ap •
pl ied
The adaptive c ruise contro l system switches off
automatically if the park ing bra ke is set.
ACC: Curre ntly unavail abl e. Stab ility control
( ESC) input .
This message appears if the Electronic Stabiliza­
tion Control (ESC) is tak ing action to stabilize the
ve hicle . In this case, adapt ive cruise control
sw itches off automatically.
AC C off: Manual control!
This message appears when adaptive cr uise con­
trol cannot set the parking brake . Press the brake
pedal to prevent the vehicle from rolling.
•••
Three white dots appear if a sett ing cannot be se­
lected wi th the ope rating lever. For example, this
h a ppens if adaptive c ruise cont ro l canno t start
driving automatically in stop -and-go traffic be­
cause the driver has not fastened their safety
be lt.
96
Door open
The adaptive cru ise cont rol system cannot switc h
o n when a door is open.
Stationary obj ect ah ead
This message appears if you wo uld like to switch
adaptive cruise control on and there is a station­
ary object or obstacle direct ly ahead of your vehi­
cle .
Audi active lane assist
Description
Appl ies to: vehicles with Audi act ive lane assist
Active lane assist detects lane marker lines with­
i n the lim its of the system using a camera in the
windshield. If you are approach ing a detected
lane marker line and it appears like ly that you
will leave the lane, the system w ill warn you with
corrective steering. You can override this steering
at any time. If you pass over a line, the steering
whee l w ill vibrate lightly. In orde r fo r thi s warn­
i ng vibration to occ ur, it must first be switched
on in the Infotainment system. Active lane ass ist
is ready for operation when the lane marker line
is detected on at least one side of the vehicle.
The system is des igned for driving on express­
ways and highways and therefore on ly activates
at speeds above approximately 40 mph (65 km/
h) .
Applies to: vehicles with side assist
If you activate a turn s ignal when act ive lane as­
s ist is ready and it classifies a lane change as crit ­
ica l because of vehicles traveling a longside you or
approach ing you, there wi ll be noticeable correc­
tive steer ing shortly before you leave the lane.
This will attempt to keep your veh icle in the lane.
Applies to: vehicles without side assist
The system will not wa rn you befo re c ross ing a
l ane marke r line if you have act ivated the t urn
s ignal. In this case, it assumes that you are
changing lanes intentionally.
Applies to: vehicles with adaptive cru ise control
The corrective steer ing is targeted based on the
driv ing situation . In add it ion to the lane marke r .,.

Intelligent Technology
Intelligent Technology
Electronic Stabilization
Control (ESC)
Description
Elect ronic Stabilization Control (ESC) suppo rts
driver safety.
It red uces the risk of slipping and
improves dr iving stability. ESC detects crit ica l sit­
uations such as the veh icle oversteering and un­
dersteering or the wheels are sp inning. The vehi­
cle is stabilized by app lying the brakes or reduc ­
ing engine torque. As soon as the ESC is active ly
regulat ing, the
D.1 indicato r light blin ks in the in­
s trumen t clus ter.
The fo llow ing systems are integrated in the ESC :
Ant i-lock braking system (ABS)
ABS p revents the whee ls from locking whe n brak­
ing. The vehicle can sti ll be steered even during
hard brak ing. Apply steady press ure to the brake
pedal. Do not pump the pedal. A puls ing in t he
b rake pedal indicates that the system is acting to
s tabilize the vehicle .
Br ake assist system
The brake assist system can decrease brak ing dis­
tance . It increases brak ing power when the driver
presses the brake pedal q uick ly in emergency sit­
uations . You must press and hold t he b rake pedal
until the dangerous sit uat io n is over . In veh icles
with adapt ive c ruise control*, the bra ke as sist
sy stem is more sensitive if t he di sta nce detec ted
t o the vehicle dr iv ing ahead is too small. On
ve hicl es with act ivated and f unct io ni ng night vi ­
sion assist*, the brake assist system can respond mo re sensit ively if there is a warning .
Anti-slip regulation (ASR)
ASR red uces eng ine power when the drive w heels
be gin sp inning an d adapts the force to the road
conditions. This makes it easie r to sta rt, acceler ­
ate and dr ive up h ills.
Electronic differential lock (EDL)
E DL a ppl ies the bra kes to a wheel tha t st art s
sp inning and tra nsfe rs t he dr ive powe r to t he
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other driving whee ls. This func tion is no t ava ila ­
ble at hig her speeds.
I n extreme cases , EDL automat ic al ly swi tches off
to keep t he b rake o n the br aked wheel from ove r­
heating. The ve hicle is still working correct ly. ED L
will switc h on again automatically when condi­
tions have returned to normal.
Steering recommendation
The ESC he lps to s tabili ze th e vehicle by ch ang ing
t h e s teer ing torque.
I n veh icles with dynamic s teer ing*, ESC a lso
helps to stab ilize the s teeri ng in cr it ic al situ a­
tions.
Selective wheel torque control
Se lective wheel to rque control is used when d riv­
i ng on curves . The front whee l on the ins ide of
t h e curve or both whe els on the i nside of th e
cu rve are braked se lectively as needed. This al­
l ows mo re pre cise driving in curves .
Automatic post -collision braking system
The "a utomat ic post -coll is io n braking system"
can help to reduce the risk of sl iding and of addi­
tiona l co llisions after an acc iden t. If the a irbag
c on tro l modu le dete cts a collision above a cer tain
vehicle speed, the veh icle is braked by t he ESC.
The veh icle does not brake automatically if:
- the drive r presses the accelerator pedal, or
- the bra king force generate d by the pressed
brake pedal is greater than the b raking force
that would be in itiated by the system, or
- the ESC, the bra ke system or the vehicle elect ri­
cal system are not functioning.
A WARNING
- The ESC and its integ rated systems can not
overcome the lim its imposed by natura l
p hys ica l laws. Th is is es pec ially i mpo rtan t
on s lippery or we t roads. If the system s be­
g in a cting to s tabili ze yo ur vehicle, you
should immedi ately alte r your speed to
match the road and tra ffi c conditions. Do
not let the inc reased safety provided tempt

Intelligent Technology
ESC levels
Ap plies to : RS models
Sport mode on ESC/ASRoff Sport mode off or
ESC /ASRon
Beha vior
The ESC and ASR stabiliza-
The stabilization function is The fu
ll stabilization func-
tion funct ions are limited not available
¢ ,& . ESC and tion of the ESC and ASR is
¢ .&. . ASR are switched off. availab le aga in.
Op eration Press the I.$ OFF I button P ress and hold the j.$ OF FI Press the I.$ OFF I button
briefly. b
utton longer than 3 sec- aga in .
onds .
Indicator II turns on . II and Ill turn on. II turns off or II and Ill
light s turn off .
Me ssage s Stabilization control (ESC ): S tabilization control (ESC ): Stabilization control
Sport Warn ing ! Reduced Off . Warning! Reduced sta - (ESC): On
stab ility bility
A WARNING
-Yo u should only sw itch sport mode on or
switch ESC/ ASR off if your dr iving abili ties
and road condi tions permit.
- T he stabilization func tion is limited w hen
spo rt m ode is sw itche d on. The driving
wheels co uld spi n and the vehicle could
swerve, espec ially on s lick or slippery road
s u rfaces.
- T here is no vehicle sta bilizat ion when E SC/
ASR a re swi tched off.
(D Tips
- ES C/ASR can not be switc hed off or sport
mode cannot be switche d on if the cr uise
contro l system * or the adap tive c ruise con­
tro l* is switched on.
- If the re a r spoiler sys tem m alf unct ions,
sport mo de may not switch on or it may
switc h off aga in automatically.
Braking
New brake pads
New b rake pads do not ac hieve the ir full b raking
effe ct during the firs t 2S 0 mi (400 km). They
m ust be "broken in" fi rst .
The b rea k-in period ca n be considerably longe r
for ve hicles w it h cer amic b rake rotors*. However,
you can compensa te fo r the slightly reduced
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braking force by pressing firmly on the brake
pedal. Avo id heavy braking during the break-in
per iod.
Wear
Brake pad
wear depends large ly on the way the
vehicle is driven and on ope rating conditions .
This is espec ia ll y true if you a re driv ing frequent ly
i n the city and on curves or with a sporty driving
sty le .
Ope rating noi se
Noises may occur when braking depending on the
speed, braking force and outside conditions such
as temperature and humid ity.
Noises may become mo re apparent at lower
speeds due to the nature of the materials in the
ceram ic brake rotors* .
Effect of water and road salt
In certain situa tions, for e xamp le after d riving
thro ugh water, in heavy rain, a fter over nigh t con­
densation or after washing your car, the brak ing
effect can be reduced by moisture or ice on the bra ke rotors and brake pads. The brakes must be
"dried" f irst with a few ca refu l brake app lica­
tions.
At higher speeds and with the windshield wipers
turned on, the brake pads press against the brake rotors for a short amount of time. This action,
wh ich is not felt by the dr iver, happens at regu lar .,..

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\.J ' intervals and ensures a better reaction time fo r
the brakes in wet weather.
The braki ng effect can also be red uced if you are
driving on salted roads and you do not apply the b rakes for long periods of time . The layer of salt
on the brake rotors and pads must be worn off
f irst when the brakes are app lied.
Due to its surface, the ceramic bra ke rotor* ab­
sorbs moisture in certa in situations. There fore,
there will temporarily be less braking force than
when the brakes are dry . You can compensate for
this by pressing the brake pedal harder.
Cor rosion
L eaving the vehicle parked fo r long periods of
time, low mi leage and avoiding heavy braking
can contribute to corrosion on the brake rotors
and to dirty brake pads.
I f you usually avo id heavy braking or if there is
corrosion present , occasional heavy braking at
high speeds is recommended to clean the brake
rotors and pads
q ,& .
Brak e system malfunct ion
if you notice that the brake pedal travel has sud­
denly increased, then a brake c ircui t in the dual­
circuit brake system may have malfunctioned. Drive to an authorized Audi dea ler or a uthorized
Aud i Service Facility immediately to have the
problem corrected. On the way there, drive with
reduced speed and keep in mind that you w ill
need a longer distance to stop and you w ill need
to p ress the b rake pedal harde r.
L ow brake fluid level
When the brake fl uid level is low, malfunct ions in
the brake system may occur . The brake f lu id level
is electronically monitored.
Br ak e boost er
The brake booster amplifies the pressure you ap­
p ly to the brake peda l. It only works when the en­
g ine is running.
A WARNING
- Only apply the brakes for the purpose of
cleaning the brake system whe n road and
-
Intellig ent Technology
traffic conditions permit. You must not en­
danger other road users. This increases the
risk of an accident.
- Never let the vehicle roll while the engine is
stopped because this increases the risk of an
accident.
- New brake pads do not ach ieve the ir full
braking effect during the first 250 m i
(400 km). They m ust be "broken in" first.
The break-in per iod ca n be cons iderably lon­
ge r fo r vehicles with ceram ic brake rotors* .
H owever, you can compensate fo r the
slightly reduced braking force by pressi ng
fi rm ly on the brake pedal. Avo id heavy b rak­
ing du ring the break -in pe riod.
- Ce rtain weathe r and ope rating condi tions
such as driving through water, dr iv ing in
heavy rain o r driv ing after was hing your ve­
hicle can impa ir the effect iveness of the
brakes. In the winter, ice may build up on
the brake pads, rotors and drums . Check
these components by braking carefully. Ap­
p lyi ng the brakes carefully several times
d ries the b rakes and removes ice build-up .
- The efficiency of the brakes can also be im­
pa ired by dr iv ing for long stretches on roads
covered with sa lt without using the bra kes .
You can remove salt deposits from the
b rake rotors and pads by carefully applying
t he brakes several times .
- I f the fron t spoiler is damaged o r yo u install
another spoi ler, make su re the front wheel
b rakes are ven tilated properly . Othe rw ise,
the brake system co uld overheat, which re­
duces their effectiveness .
- Fa ilure of a brake circuit impairs brak ing
pe rformance, which increases b raking dis­
tance. Avo id driving the vehicle and have it
towed it to the nearest a uthorized Audi
deale r or authorized Aud i Serv ice Facility.
- I f the brake booster is not working, yo u w ill
have to p ress much harder on the brake
pedal to compensate fo r the lack of the
booster.
Q) Note
- Never let the brakes "rub" by pressing the
peda l lightly when braking is not actually
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