brake AUDI A3 CABRIOLET 2016 Owner's Guide

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General information
Appl ies to: ve hicles with Audi adaptive cruise contro l an d Audi
p re se nse front
Fig. 88 Front of vehicle: sensor
The general information applies to adaptive
cruise control* and pre sense front*
i::;, page 97.
The radar sensor area
i::!:> fig. 88 must not be cov­
ered with stickers, deposits or any other obstruc­
tions as it may impair the function of the adap­
tive cruise control and the pre sense front. For in­
formation on cleaning, refer to
c> page 224. The
same applies for any modifications made in the
front area .
The function of the adaptive cruise control sys­
tem and pre sense front is limited in some condi­
tions :
- Objects can only be detected when they are
within the sensor range ¢
page 90, fig. 87.
-The system has a limited ability to detect ob­
jects that are a short distance ahead, off to the side of your vehicle or moving into your lane.
- Objects that are difficult to detect such as mo­
torcycles, vehicles with high ground clearance
or an overhanging load are detected late or not detected at all.
- When driving through curves'=>
page 92.
- With stationary objects ¢
page 92.
A WARNING
Always pay attention to traffic when adaptive
cruise control is switched on and the pre
sense front is active
'=> page 9 7. As the driv­
er, you are still responsible for starting and
for maintaining speed and distance to other objects. The pre sense front is used to assist
you. The driver must always take action to
Assist
avoid a collision. The driver is always responsi­
ble for braking at the correct time.
- Using adaptive cruise control incorrectly can
cause collisions, other accidents and serious
injuries.
- For safety reasons, do not use adaptive
cruise control when driving on roads with
many curves, when the road surface is in
poor condition and/or in bad weather (such
as ice, fog, gravel, heavy rain and hydroplan­
ing). Using the system under these condi­
tions could result in a collision.
- Switch adaptive cruise control off tempora­
rily when driving in turning lanes, on ex­
pressway exits or in construction zones. This
prevents the vehicle from accelerating to
the set speed when in these situations.
- The adaptive cruise control system will not
brake by itself if you put your foot on the ac­
celerator pedal. Doing so can override the
speed and distance regulation.
- When approaching stationary objects such
as stopped traffic, adaptive cruise control
will not respond and pre sense front will
have limited function.
- The adaptive cruise control system and pre
sense front do not react to people, animals,
objects crossing the road or oncoming ob­
jects.
- The function of the radar sensors can be af­
fected by reflective objects such as guard
rails, the entrance to a tunnel, heavy rain or
ice.
- Always maintain enough distance from
vehicles ahead so that you can still brake
your vehicle safely . The adaptive cruise con­
trol cannot safely slow your vehicle or brake it to a stop if you are driving too close be­
hind a vehicle. Please note that the auto­
matic braking function cannot brake sud­
denly or apply the brakes fully under these
conditions.
- To reduce the risk of unintended actions,
switch the ACC off when you a re not actively
using it.
~
91

Ass is t
(D Note
The sensor can be displaced by impacts or
damage to the bumper, whee l housing and
underbody. The adaptive cruise control and
pre sense front may become impa ired as a re­
sult . Have an authorized Audi dealer or au­
thorized Audi Service Fac il ity check their func­
tion.
In curves
Applies to: ve hicles w ith Aud i adapt ive cru ise co ntro l and Audi
pre se nse front
F ig . 89 Examp le: driv ing into a cu rve
When driving into a curve ¢ fig. 89 and out of a
curve, the adaptive cruise control may react to an
object in the neighboring lane and apply the
brakes . You can prevent that by pressing the ac­
celerator pedal briefly .
Stationary objects
Applies to: vehicles with Aud i adapt ive cruise co ntro l and Audi
p re se nse front
Fig . 90 Examp le : object changing lanes and stationary ob­
j ect
l ) Speed lim it s depend on t he country a nd the speedomete r.
92
Adaptive cruise cont rol
The adaptive cru ise con trol system only reac ts to
ob jects that are moving or t hat the system has
already detected as moving . For example, it can
react when a vehicle that has already been de­
tected @turns or changes lanes, but adaptive
cruise contro l does not react to a stationary vehi­
cle @. Press the brake pedal to slow the vehicle
down .
Pre sense front
Pre sense front only reacts to stat ionary objects
at low speeds .
Switching on/off
Applies to : vehicles wit h Audi adapt ive cruise control
Fig . 91 Operat ing lever: switch ing on and off
Fig . 92 Instrument cluster: adaptive cru ise contro l
You can set any speed l) between 20 mph and 95
mph (30 and 150 km/h) .
Ind icator lights and messages in the inst rument
cluster disp lay inform yo u about the curre nt sit -
uat ion and settings. .,.

Switching adaptive crui se control on
"' Pull the lever toward you into position @
¢
fig. 91. A CC: s tandby appea rs in the instru­
ment cluster disp lay .
Saving the speed and activating regulati on
"'T o save the c urrent speed , press the ISETI
¢ fig. 91 button . The stored speed is shown in
t h e tachomete r LED line @and appears briefly
in the information line ®¢
fig. 92 .
"' To activate the regulation whi le stationary, you
must press the brake pedal.
Sw itching adaptiv e cruise control off
"' Push the lever away from you into position @
until it clicks i nto place ¢
fig. 91 . The message
AC C: off appears.
The stored speed in the LED line is e rased.
@ Indicato r lights
II -adaptive cruise control is switched on. No
objects are detected ahead. The stored speed is
maintained.
• -An object a head was detected . The adaptive
cruise control system regulates the speed and
d istance to the object ahead and brakes/acce ler ­
ates automatica lly.
fij -adaptive cru ise control is switched on. An
object ahead was detected. Your vehicle remains
stopped and w ill not start driving automatica lly.
• -T he automatic bra king is no t enough to
maintain a sufficient distance to a n object ahead.
You must intervene ¢
page 96, Request for
driver intervention.
© Instrument cluster display
I f adaptive cruise control is not shown in the in­
s trument cluster disp lay, yo u can call it up using
the mu ltifunction steering wheel b uttons
¢ page 24.
Based on the g raph ics in the d isp lay, you can de­
termine if the system is m ainta ining a distance to
;;!; a vehicle ahead and what that distance to this ve-....
~ hide is: N ....
R No vehi cle -No object ahead was detected.
> 00
Assist
White vehicl e -An object ahead was de tected .
Red vehicl e -Request for the dr iver to take action
¢page 96.
Both
arrows on t he scal e@ indicate the d istance
to the object ahead . No arrow appears when the
vehicle is on an open road and t here is no object
ahead. If an object is detec ted ahead, the a rrow
moves on the sca le.
T he green zone o n the scale indicates the store
distance. For informat ion on changing the dis­
t a nce, refer to ¢
page 95. If the dis tance se ­
l ected is exceeded or not reached, the arrow
moves into the red zone on the scale.
A WARNING
- Using adaptive cruise control incorrectly can
cause collisions, other accidents and ser ious
in ju ries.
- If you press the
!SET ! button w hen driving at
speeds be low 20 mph (30 km/h), the vehi­
cle acce lerates automatically up to 20 mph
(30 km/h), wh ich is the minimum speed
that can be set.
{!) Tips
- If you switch the ignit ion or the adaptive
cruise control system off, the set speed is
erased for safety reason.
- The Elect ronic Stabilization Control (ESC)
and Anti-S lip Regulat ion (ASR) both sw itch
on when the adaptive cruise control is
switched on . ESC and ASR ca nnot be switch­
ed off when adapt ive cruise control is
switched on.
- With the adaptive cruise control act ivated
t he ESC spo rt mode cannot be activated.
93

Ass is t
Changing the speed
Applies to: vehicles with Aud i adapt ive cruise contro l
0
f
•
0
Fig. 93 Operat ing lever: changing the speed
.,. To increase or reduce the speed in increments,
tap the lever up or down.
.,. To increase or decrease the speed quickly,
hold
the leve r up or down until the red LED @ reach­
es the desired speed
¢ page 92, fig. 92.
After each change, the new stored speed appears briefly in the informat ion line ®¢
page 92,
fig. 92.
Driving in stop-and-go traffic
Applies to : vehicles with Aud i adapt ive cru ise control
The adaptive c ruise control system assists yo u in
stop-and-go traffic. If an object that is detected
ahead stops, your vehicle will brake and stay at a
stop, within the limits of the system.
Starting to drive with adaptive cruise
control!)
If your vehicle brakes to a stop because an object
is detected ahead,
AC C autom. go appears br iefly
in the instrument cluster display. Your vehicle is
in automatic start mode.
As long as the message
ACC au tom . go is dis­
p layed and the object detected ahead starts to
move, your vehicle will continue driving¢ ,&..
You can activate
AC C autom. go again for a short
time by pulling the lever to position @
¢ page 94, fig. 94.
The ACC autom . go start mode ends when the
b rake pedal is p ressed.
l ) Th is is not ava ilab le in some countr ies .
94
Criteria for switching off
The adaptive cru ise con trol switches off for s afe­
ty reasons when stationary:
- when the d river 's doo r is ope n,
- when the vehicle is stationary for more than 3
minutes,
- when the d river's safety belt is not fastened .
A WARNING
If the message ACC autom. go1> appears, the
vehicle continues driving, even if there is an
obstacle between your vehicle and the ob je ct
ahead. This increases the risk of an accident .
@ Tips
If adaptive cruise cont rol is act ive and your
vehicle does no t start driv ing even though the
message
AC C autom . go1> appears, you ca n
start by tapping the a cce le ra tor ped al.
- If an obstacle is detected when dr iving with
adaptive cruise cont rol, the system will re­
ques t you to beg in driving¢
page 96 . You
vehicle will begin dr iving more slowly. This
can also happen in situations where there is
no v is ible obstacle.
Interrupting cruise control
Applies to : vehicles with Audi adaptive cruise control
Fi g. 94 Operat ing lever
Requirement: adaptive cruise cont rol must be
switched on .

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Overriding cruise control
Ove rriding means ex ceeding the selected speed
when adaptive cruise control is active, for exam­
p le when pressing the accelerator peda l when
pass ing.
"'T o accelerate manua lly, p ull the lever toward
you into position @and ho ld it there . T he mes ­
sage
ACC : over ride appears . Or
"' press th e accelerator pedal.
"' To resume cruise control, release the lever or
take your foot off the acce lerator pedal.
Inte rrupting cruise contr ol w hil e driving
"'Move the lever into position @. The message
ACC: standb y appears. Or
"' press th e brake pedal.
"' To resume the stored speed, move the lever in­
to posit ion @.
Int errupting c rui se contr ol wh en stopped
"' Push the lever away from you into position @.
The message
ACC : stan dby appears.
"' To resume cruise control, press the brake pedal
and pull the lever toward you into position@.
A WARNING
It is dangerous to activate cruise control and
resume the stored speed when the current
road, traffic or weather conditions do not pe r­
m it this. This could result in a crash.
Setting the distance
App lies to: vehicles with Audi adaptive cruise control
F ig. 95 O perat ing leve r: sett ing the d ist an ce
"'Tap the switch to display the current set dis­
tance
c> fig . 95 .
Assist
"'To increase or reduce the d istance in incre­
ments, tap th e switch again to the right or left.
T he distance between the two veh icles will
change in the instrument cluster display.
When approaching an object detected ahead, the adaptive cruise contro l system brakes to match
that object's speed and then regul ates to the
stored distance. If the object detected ahead ac­ celerates, adaptive cruise contro l will also accel­
erate up to the stored speed .
The higher the speed, the greater the distance in meters
c> & . The Distance 3 setting is recom­
mended . That is equa l to the general recommen­
dation of "half t he speed shown on the speedom ­
eter ".
The distances provided are example values. De­ pending on the driv ing s ituation, the current
speed and the way the object detected ahead is
driv ing, the actual d ista nce may be more or less
t h an these target d istances .
o::::::::,_o::::::::, ___ Distance 1: th is sett ing corresponds
to a distance of 92 feet/ 28 meters when at a speed of 62 mph ( 100 km/h), for example (time
betwee n: 1 second).
o::::::::, __ o::::::::, __ Distanc e 2: this setting corresponds
to a distance of 118 feet/ 36 meters when at a speed of 62 mph ( 100 km/h), for example (time
betwee n: 1.3 seconds) .
o::::::::, ___ o::::::::,_ Distance 3: this setting corresponds
to a distance of 164 feet
I SO meters when at a
speed of 62 mph ( 100 km/h), for example (time
betwee n: 1.8 seconds) .
o::::::::, ____ o::::::::, Distance 4: this setting corresponds
to a distance of 219 feet
I 67 meters when at a
speed of 62 mph ( 100 km/h), for example (time
betwee n: 2.4 seconds) .
A WARNING
-Driving too close to other vehicles increa ses
the risk of collis ions an d serio us inju ries .
- Sett ing sho rt d istances to vehicles ahead re­
duces the dis tance an d time th at you have
to stop your vehicle safe ly . Th is increases
the need for you to pay attention to traffic . ..,.
95

Ass is t
- Always follow applicable traffic laws, use
common sense and select a distance to
vehicles ahead that takes the current traffic,
road and weather conditions into account .
(D Tips
Distan ce 3
is set automatically each time you
switch the ignition on. If you would like to set
another d istance as the standard setting, you
can have the
Ad apti ve cruis e control menu
added/ enabled by an authorized Aud i dealer
or authorized Audi Service Fac ility.
Setting the driving program
Applies to: vehicles with Audi adaptive cruise control
A ad aptive cru ise cont rol d riving program is ad­
justable on veh icles w ithout A udi drive selec t*.
• In the MMI, se lect: the
I MENU I b utton > C ar >
Sy stem s*
cont rol button > Drive r assi st >
Adaptiv e crui se c ontrol > Driving program >
Comfort /Standard /Dynamic .
Selecting the driving mode
Applies to: vehicles with Audi adaptive cruise control
The adaptive cruise contro l dr iving program is ad ­
justable for vehicles with Audi drive select usi ng
the driving mode.
• Se lect the des ired dr iving mode
C o mfort , Auto ,
Dynamic or Indi vidual *
with the knob
~page 106 .
Request for driver intervention
Applies to: vehicles with Audi adaptive cruise control
Fig. 96 Instrument d uster : req uest for d river intervention
96
In some sit uations, the braking from the adap­
tive cruise control system is not enough to main­
ta in enough d istance to the object ahead. In
these situations, the system will request you to
take action.
The danger is indicated by the. indicator light
~fig. 96 . You will also hear an aud io signa l.
Press the brake pedal to slow your vehicle down.
Driver messages
Applies to : vehicles with Audi adaptive cruise control
m'J ACC: unava ilable
The system cannot guarantee that it will detect
objects correctly and is switched off. The sensor
was moved or is faulty. Drive to an author ized
Audi dealer or authorized Audi Service Fac ility im­
med iate ly to have the malfunction corrected.
ilJ A CC: Cur rentl y una vailable. No sensor vision
ilJ ACC and Audi pre sense: currently unavaila­
ble. No sensor vi sion
This message appears if the sensor v iew is ob ­
struc ted, for examp le by leaves, snow, heavy
spray or dirt. Clean the se nsor
r=.> page 91, fig. 88.
II ACC: currentl y una vailable . Gradient too
steep
The road exceeds the maxim um poss ible angle
fo r safe adaptive cruise control operat ion. The
adaptive cruise contro l cannot be sw itched on.
rlJ ACC: onl y available in D, Sor M
Select the D/S or M selector lever position.
ii ACC: parking brake applied
The adaptive cru ise control system sw itches off
automat ica lly if the parking brake is set. The
adap tive cruise co ntro l is available again after re­
l eas ing the p arking brake.
ii ACC: curr ently unavailable . Stabilization
control input
This message appears if the Electronic Stab iliza­
tion Control (ESC) is taking action to stab ilize the
vehicle . In th is case, adaptive cruise co ntrol
switches off automatically .

<( co .... N r--­N .... 0 r--­> co
llJ ACC off: manual control!
This message appears if the vehicle rolls back
when starting on a slight incline, even though
ACC is active. Press the brake pedal to prevent
the vehicle from rolling or starting to move.
Ill ACC: engine speed
This message appears if the driver has not shift­
ed up or down in time when the adaptive cruise
control is braking or accelerating, causing the ve­
hicle to exceed or to not reach the permitted en­
gine speed . The adaptive cruise control turns off.
A chime sounds as a reminder.
•••
Three white dots appear if a setting cannot be se­
lected with the operating lever. For example, this
happens if adaptive cruise control cannot be acti­
vated when stopped because the driver has not fastened the safety belt.
Door open
Adaptive cruise control cannot be switched on
when the vehicle is stationary and the driver's
door is open.
Audi pre sense
Introduction
Applies to: vehicles with Audi pre sense basic or Audi pre
sense front
Within the limits of the system, pre sense basic
and pre sense front can initiate steps to protect
vehicle occupants in certain dangerous situa­
tions.
Critical driving situations can be recognized by
the pre sense front via a network of different ve­
hicle systems and can take steps to prepare the
vehicle occupants for a potential collision.
The pre sense front works with a radar sensor
and a video camera*. It also functions within the
limits of the system when adaptive cruise con­
trol* is switched off.
Assist
General information
General information
Applies to: vehicles with Audi pre sense front or Audi adaptive
cruise control
A WARNING
Also follow the general information found on
~ page 91, General information.
Audi pre sense basic
Description
Applies to: vehicles with Audi pre sense basic
The function of the pre sense basic is activated at
a speed of 20 mph (30 km/h) or higher.
The following functions can be triggered under
certain conditions within the limits of the sys­
tem:
- Tensioning of the safety belts (for examp le,
during heavy braking): the front safety belts have reversible belt tensioners. If a collision
does not occur, the safety belts loosen slightly
and are ready to trigger again.
- Closing the windows (for example when over­
or understeering): the windows close until
there is a small gap open.
Audi drive select: the deployment time is adapt­ ed in dynamic mode.
A WARNING
-The pre sense basic cannot overcome natural
physical laws. It is a system designed to assist
and it cannot prevent a collision. Do not let
the increased safety provided tempt you into
taking risks. This could increase your risk of a
collision.
- The system can dep loy incorrectly due to
system-specific limits.
@ Tips
-Certain pre sense basic functions switch off
when ESC is switched off (sport mode) or
when driving in reverse.
97

<( co .... N r--­N .... 0 r--­> co
-Please note that the sensor does not always
detect all objects . This increases the risk of
a collision.
- Pre sense front does not react to people or
animals or objects that are crossing the ve­
hicle's path or are difficult to detect
¢ page 91 .
-Reflective objects such as guard rails or the
entrance to a tunnel, heavy rain and ice can
affect the function of the radar sensor and
the system's ability to detect a collision risk.
- Lack of attention can lead to collisions, oth ­
er accidents and serious injuries. pre sense
front is an assistance system and cannot
prevent a collision by itself. The driver must
always intervene . The driver is always re­
sponsible for braking at the correct time.
- Always pay attention to traffic , even when
pre sense front is switched on. Always be
ready to intervene and take over complete
control of the vehicle whenever it is neces­
sary. Always follow traffic laws regarding
maintaining a safe distance between your
vehicle and vehicles ahead.
- pre sense front works within certain limits
and cannot react to situations that are out­
side of the system limits, such as when ap­
proaching a stationary vehicle or a station ­
ary obstacle (the end of a traffic jam or ave­
hicle that has broken down).
- Always keep in mind that the radar sensor
for pre sense front only works within de­
fined detection zones , which means other
vehicles may not always be detected cor­
rectly.
- The function and range of the radar sensor
can be impaired by rain, snow and heavy
mist. Vehicles ahead may not be detected
right away, or not detected at all.
(1) Note
The sensor can be displaced by impacts or
damage to the bumper, wheel housing and
underbody. Pre sense front can be impaired
by this. Have an authorized Audi dea ler or au­
thorized Audi Service Facility check their func­
tion .
Assist
{!) 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.
- For information on driver messages about
pre sense, refer to
¢ page 100.
- Keep in mind that pre sense front can brake
unexpectedly. Always secure any cargo or
objects that you are transporting to reduce
the risk of damage or injury.
- Certain pre sense front functions switch off
when ESC is switched off (sport mode) or
when driving in reverse.
- The pre sense front functions are not availa­
ble if there is a malfunction in the adaptive
cruise control* system
Q page 96 or
Q page 100 .
-Keep in mind that pre sense front can brake
abruptly . Always secure cargo or objects
that you transport to reduce the risk of
damage or injury.
Settings in the Infotainment system
Appl ies to: vehicles with Audi pre sense front or Audi adaptive
cruise contro l
.,. In the MMI, select: the I MENU I button >Ca r>
Systems*
control button > Driver assistance >
Audi pre sense.
Switching the system on and off
Audi pre sense (Syste m): if the system is switch­
ed off , it automatically switches on once the igni­
tion is switched on again .
System -Switch Audi pre sense On-Off. With
th is, you can switch the prewarning and the brak­
ing intervention from Audi pre sense on or off .
Early warning -The distance and approach warn­
ings can be switched
On/Off .
(D Tips
-If you restrict or switch off the ESC, the pre
sense also switches itse lf off ¢
page 117 .
-Switch the pre sense off when you a re load­
ing the vehicle onto a vehicle carrier, train,
ship or other type of transportation. This ..,.
99

Intelligent Technology
Intelligent Technology
Electronic stabilization
control (ESC)
Description
The Electronic Stabilization Control (ESC) rein for­
ces driver safety . It reduces the risk of slipping
and improves driving stability. ESC detects crit i­
cal s ituations such as the vehicle oversteering
and understeering or the wheels are spinning.
The vehicle is stabilized by applying the brakes or reducing eng ine torq ue. When the ESC engages,
the
D1 ind icator light blinks in the instrument
cluste r.
The fo llow ing systems are integrated in the ESC :
Ant i-loc k 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 .
Brake assist system
The brake assist system can decrease brak ing dis­
tance . It increases braking power when the d river
presses the brake pedal quick ly in emergency sit­
uations . You must press and hold t he b rake pedal
until the dangerous situat 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 ahea d is too sm all.
Anti-slip regulation (ASR)
ASR reduces eng ine power when the drive wheels
beg in sp inning a nd adapts the force to the road
conditions . This makes it easie r to start, acceler­
a te and dr ive u p in clines.
Electronic differential lock (EDL )
The EDL brakes w heels that a re spinning and
transfers the drive power to the other drive
wheel or whee ls if t he ve hicle is equipped with a ll
wheel drive*) . T his funct ion is not av ailable at
h igher speeds.
116 I
n extreme cases, ED L automat ically swi tches off
to keep the brake on the braked whee l from over­
heating. The veh icle 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 stabili ze the vehicle by cha nging
the steering torque.
Selective wheel torque control
Se lective w hee l to rque cont rol is used when d riv ­
i ng o n curves. The fron t whee l on the inside of
the curve or bo th whee ls on the inside of the
cu rve are braked se lective ly as needed. This al­
l ows mo re precise driving in cu rves.
Automatic post-collision braking system
The "A utomat ic pos t-coll is io n braking sy stem"
c a n hel p to reduce t he risk of sliding and o f othe r
collisions after an accident . If the a irbag cont rol
module detects a collision a bove a certain vehicle
speed, the vehicle is bra ked by the ESC.
The vehicle does not bra ke automatically if:
- the dr ive r presses the acce lerator pedal, or
- the braking force generated by the pressed
brake pedal is grea ter than the braking force
that wo uld be i nitiated by the system, or
- the ESC, the brake system o r the ve hicle elect ri­
cal system are not func tioning .
A WARNING
- The ESC and its integ rated syste ms can not
o vercome the lim its posed by natural physi ­
c a l la ws. Thi s is espe cial ly import ant on sli p­
pe ry o r we t roads. If the systems beg in act ­
ing to stabilize your ve hicle, yo u should im­
mediately a lter your speed to matc h the
road and traffic condit ions. Do not let the
increased safety pr ovided tempt you into
taking risks . This cou ld increase your risk of
a co llision .
- Please note the r isk of a collis ion increases
when dr iv ing fast, especia lly t hrough c urves
and on slippery or wet roads, and when dr iv­
ing too close to objects ahead. The ESC and
i t s in tegr ated systems cannot always .,..

Intelligent Technology
(D Tips
-ESC/ASR cannot be switched off or sport
mode cannot be switched on if the cruise
control system* or the adaptive cruise con­
trol* is switched on.
- Malfunctions in the Audi magnetic ride may make it impossible to switch the ESC/ASR
off or to switch sport mode on.
Brakes
New brake pads
New brake pads do not achieve their full braking
effect during the first 250 mi (400 km). They must be "broken in" first. However, you can com­
pensate for the slightly reduced braking force by
pressing firmly on the brake pedal. Avoid heavy
braking during the break-in period .
Wear
Brake pad
wear depends largely on the way the
vehicle is driven and on operating conditions .
This is especially true if you are driving frequently
in the city and on curves or with a sporty driving
style .
Operating noise
Noises may occur when braking depending on the
speed, braking force and outside conditions such
as temperature and humidity .
Effect of water and road salt
In certain situations, for example after driving
through water, in heavy rain, after overnight con­ densation or after washing your car, the braking
effect can be reduced by moisture or ice on the
brake rotors and brake pads. The brakes must be
"dried" first with a few careful brake applica­
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
which is not felt by the driver happens at regular
intervals and facilitates a better reaction time for
the brakes in wet weather .
The braking effect can also be reduced if you are
driving on salted roads and you do not apply the
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brakes for long periods of time. The layer of salt
on the brake rotors and pads must be worn off
first when the brakes are applied.
Corrosion
Leaving the vehicle parked for long periods of
time , low mileage and avoiding heavy braking
can contribute to corrosion on the brake rotors
and dirty brake pads.
If you usually avoid heavy braking or if there is
corrosion present, occasional heavy braking at
high speeds is recommended to clean the brake
rotors and pads¢.&. .
Brake system malfunction
if you notice that the brake pedal travel has sud­
denly gotten larger, then a brake circuit may have
failed. Drive to an authorized Audi dealer or au­
thorized Audi Service Facility immediately to have
the problem corrected. On the way there, drive
with reduced speed and keep in mind that a long
braking distance and increased pressure on the
brake pedal will be necessary.
Low brake fluid level
When the brake fluid level is low, malfunctions in
the brake system may occur. The brake fluid level
is electronically monitored.
Brake booster
The brake booster amplifies the pressure you ap­
ply to the brake pedal.
It only works when the en­
gine is running.
A WARNING
- New brake pads do not achieve their full
braking effect during the first 250 mi
(400 km). They must be "broken in" first.
However, you can compensate for the
slightly reduced braking force by pressing
firmly on the brake pedal. Avoid heavy brak­
ing during the break-in period.
- Only apply the brakes for the purpose of
cleaning the brake system when road and
traffic conditions permit. You must not en­
danger other road users. This increases the
risk of an accident.