Audi adaptive cruise control and braking guard
Audi adaptive cruise
control
De script ion
Applies to veh icles: with Audi adaptive cruise co ntrol
F ig. 106 Detect ion range
What can Audi adaptive cruise control do?
The adaptive cruise control works in conjunction
with a radar sensor instal led in the front of the
vehicle
¢ page 90, fig. 103, which is subject to
designated system limits¢
page 92. Stationary
objects are disregarded.
On open roads w ith no traff ic, adaptive cruise
control works like a regula r cruise control system.
The stored speed is mainta ined . When approach
ing a moving vehicle detected up ahead, the
adaptive cruise control system automatically
slows down to match that vehicle's spe ed and
then maintains the distance that the d river previ
ously stored. A s soon as the system does not de
t ec t a vehicle up ahead, adap tive cruise control
accelerates back up to the stored speed .
Which functions can be controlled?
When you switch adaptive cruise control on, you
can set the current speed as the "control speed"
¢ page 92 , Swit ch ing on and off.
When driving, you can stop cruise control
¢
pag e 94 or change the speed ¢ page 93 at
any time.
You can a lso set the distance to the object ahead
and set the adaptive cr uise control driving pro
gram
¢ page 94.
92
Switch ing on and off
Applies to vehicles: with A udi adaptive cruise contro l
Fig. 107 Selector le ve r: switc hin g o n/off
Fig. 108 I ns trume nt cl ust er: Au di ada ptive cruise control
You can set any speed between 20 mph and 95
mph (30 and 150 km/h).
Indicator lamps and messages in the instrument cluster display inform you about the current sys
tem status and settings.
Switching Audi adaptive cruise control on
.. Pull the lever toward you into position (D
¢ fig. 107 . ACC standby appears in the instru
ment cluster display .
Setting the speed and activating regulation
.. To set the current speed, press the ISET I button
¢
page 11, fig. 4. The set speed is shown in the ..,.
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Audi adapt ive crui se cont rol and bra king gu ard
tachometer @and is also shown briefly in the
display @c:>
fig. 108.
Swit ching Audi adapti ve c ru is e contr ol off
~ Push the lever away from you into position @
unt il it clicks into place. The message
AC C off
appea rs .
@ Indicator lights
II -Adaptive cru ise control is switched on. No
vehicles are detected up ahead . The stored speed
i s 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 .
• -When automatic braking is not able to keep
enough d istance to a prev iously detected mov ing
vehicle up ahead, you must take control and
brake ¢
page 95, Request for driver interven
tion.
© Displa y
If adaptive cruise control is not shown in the d is
play, you can call it up with the !RESE TI button
¢page 23.
Based on the symbo ls in the d isplay, you can de
termine if the system is ma inta ining a distance to
the vehicle ahead and what that distance is .
N o v ehicl e -No vehicle ahead was detected.
Wh it e v ehi cle -A vehicle ahead was detected .
Red v ehicl e -Prompt for the d river to take action
¢page 95.
Both arrows on the scale © indicate the distance
to the veh icle ahead. No arrow appears when the
vehi cle 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 informa tion on chang ing the stored
d ista nce, refe r to¢
page 94 . If the distance se
l ected 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 se ri
ous personal injuries.
- Pressing the !SET ! button when driving at
speeds below 20 mph (30 km/h), w ill auto
matica lly accelerate the vehicle to 20 mph
(30 km/h), which is the mi nimum speed
that can be set.
a) Tips
- If you switch the ignit ion or the adaptive
cruise control off, the set speed is erased
from the system memo ry.
- The electronic stab ilizat ion cont rol (ESC)
and the anti-slip-reg ulat ion (ASR) are a uto
matically turned on when the adaptive
cruise contro l is turned on. Both systems
cannot be turned off if the adaptive c ruise
control is turned on .
Changing the speed
Applies to vehicles: wit h Aud i adapt ive cru ise control
0
f
•
0
Fig . 109 Selector lever: chang ing the speed
~ To increase o r reduce the speed in increments,
tap the lever up or down.
~ To increase o r reduce the speed q uickly, hold
the lever up or down until the red LED @ reach
es the des ired speed ¢
page 92, fig . 108.
Following any changes, the new stored speed wi ll
be displayed briefly in the display @¢
page 92,
fig . 108 .
93
Audi adaptive cruise control and braking guard
Interrupting cruise control
Applies to veh icles: w ith Audi adaptive cruise co ntrol
Fig. 110 Selector leve r
Requirement : adaptive cruise control must be
switched on
¢ fig . llO (i).
Overriding cruise control
• To accelerate manually, press the acce lerator
pedal. The message
ACC override appears .
• To resume adaptive cruise control, remove your
foot from the gas pedal. The system returns
again to the speed that was saved before.
• You can save a new speed at any time by press·
ing the
ISETI button r:::;, page 11, fig. 4.
Canceling cruise control while driving
• Move the lever into position @. The message
ACC standby appears . Or
• press the brake pedal.
• To resume the stored speed, move the lever in
to position
@ .
,& WARNING
Never resume the stored speed if the speed is
too high for prevailing road, traffic or weather
conditions.
94
Setting the distance
App lies to vehicles: wit h Audi adapt ive cru ise contro l
Fig. 111 Selector lever: setting the d istance
• Tap the switch to display the current set dis
tance
¢ fig . 111 .
• To increase or reduce the distance by incre·
ments, tap the switch again to the left or right.
The distance between the two veh icles will
change in the instrument cluster display .
When approach ing a mov ing vehicle up ahead,
the adapt ive cruise control system brakes to
match that object's speed and then mainta ins
the stored distance. If the vehicle ahead acceler
ates, adaptive cruise contro l will also accelerate
up to the stored speed.
The higher the speed, the greater the distance in
yards (meters)
r:::;, A . The Distance 3 setting is
recommended.
The distances prov ided are specified va lues . De
pending on the driving situation and the how the
vehicle ahead is driving, the actua l dis tance may
be more or less than these target distances.
The var ious symbols for the time increments ap
pear briefly in the information line@r:::;,
page 92,
fig. 108 when you change the settings .
o;:'.'.:>_o;:'.'.:> ___ Distance 1: This setting corresponds
to a distance of 92 feet/28 meters when travel·
i ng at 62 mph (100 km/h), or a time i nterva l of 1
second.
o;:'.'.:> __ o;:'.'.:> __ Distance 2: This setting corresponds
to a distance of 118 feet/36 meters when travel
i ng at 62 mph (100 km/h), or a time i nterva l of
1.3 seconds.
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Audi adapt ive crui se cont rol and bra king gu ard
~ -- -~ -Di sta nce 3: This setting corresponds
to a distance of 164 feet/SO meters when trave l
ing at 62 mph (100 km/h), or a t ime interval of
1.8 seconds.
~ -- --~ Dista nc e 4: This setting corresponds
to a distance of 210 feet/64 meters when trave l
ing at 62 mph (100 km/h), or a t ime interval of
2 .3 seconds.
A WARNING
Following other vehicles too closely increases
the risk of collisions and ser ious personal in
jury.
- Setting short distances to the traffic ahead
reduces the time and distance available to
br ing your vehicle to a safe stop and makes
it even mo re necessary to pay close atten
tion to traffic.
- Always obey applicable traffic laws, use
good judgment, and select a safe following
distance for the traffic, road and weather
condit ions.
¢j) Tips
- Di stance
3 is set automatically each time
you switch t he ignition on.
- Your standa rd settings are automatically
stored and assigned to the remote contro l
k ey being used.
Setting the driving program
Applies to vehicles: with Audi adaptive cruise control
D epending on the se lected dr iv ing program and
distance, driving behavior when accelerating will
vary from dynamic to comfortab le .
Setting th e driving program for v ehicl es
without Audi d rive s elect*
~ In the radio/MMI*, select: !CAR !function but
ton >
Adapti ve c ru is e control > D riv ing prog. >
comfo rt, stand ard or d y namic . Or
~ Select : !CAR I function button> Ca r sy ste m s*
co ntrol button > D river ass ist > Adap tive cru ise
cont ro l
> Dr iving progr am * > Comfort, Stand
ard
or D ynamic . Setting the driving mode for vehicles w
ith
Audi dri ve select*
Refer to ¢ page 104.
(D Tips
Your settings are automatical ly stored and as
signed to the remote control key being used.
Request for driver intervention
Applies to vehicles: with Audi adaptive cruise control
Fig . 1 12 Instr ume nt cluster: reques t fo r dr ive r inte rven
t ion
In certa in situations, the system will prompt you
to ta ke act ion. This cou ld happen, fo r example , if
braking by the adaptive c ruise control system is
not enough to maintain enough distance to the
vehicle ahead.
T he instrument cluster w ill warn you abou t the
dange r
~fig. 112:
-A red vehicle is p ictured in the display .
- The text
DISTANCE! appears in the status bar .
- The red indicator light . blinks .
- In addition, a warning tone sounds .
95
Audi adaptive cruise control and braking guard
Audi braking guard
Description
Applies to veh icles: w ith Audi adaptive cruise co ntrol
Fig. 113 Instrument cluster : approach warn ing
Braking guard uses a radar sensor. It also func
tions within the limits of the system when adap
tive cruise control is switched off.
What can Audi braking guard do?
When detected in time, the system can assess
situations when a vehicle ahead brakes suddenly
or if your own vehicle is traveling at a high speed
and approaching a vehicle up ahead that is mov
ing more slowly . Braking guard does not react if it
cannot detect the situation .
The system advises you of various situations:
- The
distance warning is given if you are too
close to the vehicle ahead for a long time. If the
vehicle ahead brakes sharply, you will not be
able to avoid a collision. The indicator light.
in the display comes on .
- The
approach warning is given when a detected
vehicle up ahead in your lane is moving much
more slowly than you are or if it brakes sharply .
When this warning is given, it may only be pos
s ib le to avoid a collision by swerving or braking
sharply. The indicator light . and indicato r in
the display will wa rn you about the danger
¢ fig. 113 . You will also hear an acoustic signa l.
If you do not react fast enough or do not react at
all to the situation, Braking guard will intervene
by braking and the message
braking guard inter
vention
will appear.
ll Thi s is not available in so me c oun tries.
96
- If a co llision is imminent, the system wi ll first
provide an
acute warning by br iefly and sharply
app ly in g the brakes.
- If you do not react to the acute warning, brak
ing guard can brake within the limits of the sys
tem. This reduces the vehicle speed in the event
of a collision.
- At speeds under 20 mph (30 km/h), the system
can initiate a complete deceleration shortly be
fore a collisionl l_
-If the braking guard senses that you are not
braking hard enough when a collision is immi
nent, it can increase the braking force.
Which functions can be controlled?
You can switch braking guard and the distance/
approach warning on or off in the radio or MMI
¢page
97, Settings in the radio/MM!.
A WARNING
Lack of attent ion can cause collisions, other
accidents and ser ious personal injuries. The
braking guard is an assist system and cannot
prevent a coll is ion by itself. The dr iver must
always intervene. The driver is always respon
sib le for braking at the correct time.
- Always pay close attent ion to traffic, even
when the braking guard is switched on. Be
ready to intervene and be ready to take com
plete control whenever necessary. Always
keep the safe and legal distance between
your vehicle and vehicles up ahead.
- Braking guard works within limits and will
not respond outside the system limits, for
examp le 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 w ith in 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
-
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Audi adaptive cruise control and braking guard
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.
(D Tips
- You can cancel the braking that is initiated by the system by braking yourself, by accel
erating noticeably or by swerving.
- Braking guard error messages
Q page 97.
- 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.
Settings in the radio /MMI
App lies to vehicles: with Audi adaptive cruise co ntrol
... Select : I CARI function button > Car systems*
control button > Driver assist> Audi braking
guard .
Or
... Select :
~I C-A-R~I function button > Audi braking
guard.
System -
Switch Audi braking guard On and Off.
When you switch the ignition on, the message
Audi 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 at the times the settings are made.
- If you restrict or switch off the ESC, the
braking guard also switches itself off
¢ page 171.
- 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: wi th Aud i adap tive c ruise control
Braking guard: Off
This driver message appears if the system is
turned off via the radio/MMI*. Otherwise, if the
system is turned off, the information appears ev
ery time shortly after the start of the trip.
The driver message also appears if the system is
not available due to a malfunction or if the ESC is
not switched on
¢ page 171. If this is the case,
the system will not provide warnings about a possible collision.
Braking guard: Activated
This driver message appears if sharp brake pres
sure was applied due to an acute warning .
•••
Three white dots appear if a setting cannot be se
lected with the operating lever. For example, this
happens if you want to raise/lower the speed
even though there was no previously saved
speed .
ACC: Sensor blocked
This message appears if the sensor view is ob
structed, for example by leaves, snow, heavy
spray or dirt. Clean the sensor~
page 90,
fig. 103.
ACC: not available
The driver message appears if there is a malfunc
tion. The adaptive cruise control turns off. A
chime sounds as a reminder. Have the system
checked by an authorized Audi dealer or author
ized Audi Service Facility.
ACC: unavailable
The driver message appears if, for example, the
brake temperature is too high. The adaptive
cruise control is temporarily unavailable . A chime
sounds as a reminder.
Shift lever position!
The driver message appears if the selector lever
is shifted to the N position. The adaptive cruise
control is not available while in this position. .,..
97
Audi adaptive cruise control and braking guard
Stabilization control (ESC)
T his message appea rs if the electroni c stabili za
t ion con trol ( ESC) is taki ng act io n to s tab iliz e th e
ve hicl e. The adap tive cruise cont ro l tur ns off. A
chime soun ds as a remin der.
Speed too low
This message appea rs if the current speed is too
low
to set or to maintain th e des ired s peed .
The speed being saved must be at least 20 mph (30 km/h). The cru ise cont ro l is turned off for
speeds lowe r th an 12 mph (20 km/h). The adap
tive c ruise co ntrol rema ins tur ned o n for speeds
above 95 mph (150 km/ h) (override). It w ill sta
b iliz e aga in at 9 5 mph ( 150 k m/h) whe n the dr iv
e r tak es his foo t off of the g as peda l.
Parking brake!
The drive r message appea rs when the park ing
b rake is activated. Adaptive cru ise cont ro l is
tur ned off . A chime sounds as a reminde r.
98
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Audi drive select Driving settings
Introduction
App lies to vehicles: with Audi drive select
Drive select provides the possibi lity to experience
d ifferent types of vehicle settings in one vehicle.
F or instance, using the three
Comfort, Auto and
Dynamic modes, the driver can switch from a
sporty to a comfortable driving mode with the
press of a button.
Addit ionally, in vehicles with
MM I*, the vehicle
setup for
Individual* mode can be customized by
you. This makes it possib le to combine settings
such as a sporty engine tuning with comfortab le
steering .
A WARNING
-
Improper use of the Audi drive select can
cause collisions, other acc idents and serious
personal injury.
Description
App lies to vehicles: with Audi drive select
The vehicle setup in each mode depends on the
veh icle's featu res . However, the engine, automat
ic transmission and steering are always involved.
Engine and automatic transmission
Depending on the mode, the engine and the au
tomatic transmission respond quicker or in a
more balanced manner to accelerator pedal
movements. In the sporty dynamic mode, the au
tomatic transmission shifts at higher RPMs .
Steering
The steering adapts in terms of steering effort
and steering ratios. Ind irect steer ing that moves
eas ily, like the steering in comfort mode, is best
suited to long drives on a highway. In contrast,
dynamic mode provides sporty, direct stee ring.
The follow ing applies to vehicles with dynam ic
steer ing*: the steering ratio changes based on ve
hicle speed in order to maintain optimum steer
ing effort for the dr iver at all times. This sets the
steer ing to be less sensitive at higher speeds in
Audi drive select
order to provide improved vehicle control. At re
duced speeds, however, steering is more direct in
order to keep the steering effort as m inima l as
possib le when the driver is maneuvering the vehi
cle. At low and average speeds, dynamic steering
additionally provides more responsive steering performance.
Adaptive dampers*
The adaptive dampers* use sensors to record in
formation regarding steering movements, braking and acceleration operations by the driver,
road surface, driving speed, and load. This makes
i t possible to adapt damping to the driving situa
t ion virtually in real t ime . Drive select also makes
it possible to sat isfy the desire for sporty suspen
s ion (Dynamic) and comfortab le suspension
(Comfort) without giving up ba lanced tuning (Au
to) .
Sport differential*
As a component of the all whee l dr ive system
(quattro)
~ page 174, the sport differential* dis
tributes the driving power to the rear axle de
pending on the situation. The dist ribution of
power varies depending on the mode selected.
The goal is a high level of agility and ability to ac
ce lerate on curves. The vehicle is very responsive
to steering.
Audi adaptive cruise control*
T he behavior when accelerating can be adjusted
from comfortable to sporty, depending on the
drive select mode. Adaptive cruise control also
responds to the driving behavior of the vehicle
ahead in a more conservative or sporty manner.
Engine sound*
The sound of the engine is adapted to the select
ed mode and ranges from subtle to sporty.
(D Tips
- In some models, the maximum vehicle
speed can only be reached in the
Auto and
Dynamic modes.
- For vehicles with an automatic transmis-
sion, selecting the
Dynamic mode results in ..,.
103