2016 AUDI A4 ESP

Audi adaptive cruise control and braking guard
Audi adaptive cruise
control and braking
guard
Introduction
Applies to vehicles: with Audi adaptive cruise contro l
The adaptive cruise control system assists the
driver by regulating vehicle speed and helping to
maintain a set distance to the veh icle ahead ,
within the limits of the system. If the system de­
tects a moving vehicle up ahead, adaptive cruise
control can brake and then accelerate your vehi­
cle. This helps to make driving more comfortable
on long highway stretches.
The braking guard system can warn you about an
impending collision and initiate braking maneu­
vers
c::> page 104.
Adaptive cruise control and braking guard have
technical limitations that you must know, so
please read th is section carefully, understand
how the system works and use them properly at
all times.
General information
General information
Applies to veh icles: with Audi adaptive cruise control
Fig. 112 Front of t he veh icle: Posit ion of radar sensor
The area that contains the radar sensor
c::> fig . 112 must never be covered by st ickers or
other objects or obstructed with dirt, insects,
snow or ice that w ill interfere w ith the adaptive
cruise control system and braking guard. For in­
formation on cleaning, refer to
c::> page 193. The
same appl ies for any modifications made in the
front area .
98
The function of the adaptive cruise control sys ­
tem and braking guard is limited under some
condit ions:
- Objects can only be detected when they are
within sensor range
<:!) page 100, fig . 115.
-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.
- Some k inds of veh icles are hard to detect; for
example motorcycles, veh icles 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
c:::> page 99.
- Stationary objects
i::!) page 99 .
& WARNING
-Always pay attention to traffic when adaptive
cruise control is switched on and braking
guard is active. As the driver, you are still re­
sponsible for starting and for maintaining
speed and distance to other objects . Braking
guard is used to assist you . The driver must
always take act ion to avoid a collision . The
driver is always responsible for braking at the
cor rect time.
- Improper use of adaptive cruise contro l can
cause collisions, other accidents and serious
personal injury.
- Never let the comfort and convenience that
adapt ive cr uise control and braking guard
offe r distract you from the need to be alert
to traffic conditions and the need to remain
in full control of your ve hicle at all times,
- Always remember that the adaptive cruise
control and braking guard have limits -they
will not slow the vehicle down or maintain
the set distance when you dr ive towards an
obstacle or something on or near the road
that is not moving, such as vehicles stopped
in a traff ic jam, a stalled or disabled veh icle.
If registered by the radar sensor, veh icles o r
obstacles that are not moving can trigger a
coll ision warning and if confirmed by the
video camera, an acute collision warning. ..,

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Audi ada pti ve c ruise contr ol and br akin g gu ard
-For safety reasons, do not use adapt ive
cruise contro l when driv ing 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) . Us ing the system under these condi­
t ions could result in a collision .
- Switch adaptive cruise contro l off tempora­
rily when driving in turn ing lanes, on ex­
pressway exits or in const ruc tion zones. This
preven ts the vehicle from accelerating to
the set speed when in these situat ions .
- T he adapt ive cr uise con trol system will no t
br ake by i tself if you pu t your foot on the ac­
celerator peda l. Doing so can override the
speed and distance regulation.
- Whe n approaching stat ionary obje cts such
as stopped traffic, adapt ive cruise control
will not respo nd and braking guard will have
limited function .
- The adaptive cruise control system and
brak ing guard do not react to peop le, ani­
ma ls, objects crossing the road or oncom ing
objects.
- The function of the radar sensor can be af­
fected by reflective objects such as guard
rai ls, t he entrance to a tunnel, heavy rain or
ice.
- Never follow a veh icle so closely that you
cannot stop your vehicle safely . The adap­
t ive cr uise control cannot slow or brake the
vehicle safely when you follow another veh i­
cle too close ly. Always remember th at the
au tom atic b raking function ca nnot br ing the
vehicle to a sudden or emergency stop un­
der these conditions .
- T o preven t unintended operation, always
switch AC C off when i t is not be ing used.
(D Note
The sensor can be disp laced by impacts o r
damage to the bumper, whee l housing and
underbody. That co uld affect the adaptive
cru ise con trol sys tem and braking guard.
Have your a uthorized Audi dea ler or author­
ized Aud i Service Facility check their function.
In curves
Applies to vehicles: with Audi adaptive cruise control
Fig. 113 Ex amp le : d ri ving int o a c urve
When driving into a curve¢ fig. 113 and out of a
curve, the adapt ive cruise control may react to a
vehicle in the next lane and apply the brakes . Yo u
can override or prevent the b raking by press ing
the accelerator pedal b riefly.
Stationary objects
Applies to vehicles: with Audi adaptive cruise control
Fig. 1 14 Example: object c hang ing lanes a nd st ationary
ob ject
The adaptive cruise control system only reacts to
objects that are moving or that the system has
already detected as moving. For example, if ave­
hicle @, which has already been detected by the
adaptive cruise control, turns or changes lanes
and another stat ionary vehicle @ is located in
front of that vehicle, the system will not react to
t h e stationary veh icle.
Vehicles with manual transmission
Applies to vehicles: with Audi adaptive cruise control
The ad aptive cr uise con trol is avai lab le from the
2nd gear through the 6th gear in the customary
RPM. ....
99

Audi adaptive cruise control and braking guard
• To increase or reduce the speed in increments,
tap the lever up or down.
• To increase or reduce the speed quickly,
hold
the lever up or down until the red LED @ reach­
es the desired speed
Q page 100, fig . 117.
Following any changes, the new stored speed will
be displayed briefly in the display@Qpage
100,
fig . 117.
Interrupting cruise control
App lies to vehicles: with Audi adaptive cruise control
Fig. 119 Selector leve r
Requirement: adaptive cruise control must be
switched on Q
fig. 119 (J).
Overriding cruise control
• To accelerate manually, press the accelerator
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 Q 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
@ .
A WARNING
Never resume the stored speed if the speed is
too high for prevailing road, traffic or weather
conditions.
102
Setting the distance
Applies to vehicles: with Audi adaptive cruise control
Fig. 120 Selector lever: setting the distance
.,. Tap the switch to display the current set dis­
tance Q
fig. 120 .
.,. To increase or reduce the distance by incre­
ments, tap the sw itch again to the left or right.
The distance between the two veh icles will
change in the instrument cluster display .
When approaching a moving vehicle up ahead,
the adapt ive cruise control system b rakes to
match that object's speed and then mainta ins
the s tored distance.
If the vehicle ahead acceler­
ates, adaptive cruise control will also accelerate up to the stored speed .
The higher the speed, the greater the distance in
yards (meters) Q
&.. The Distance 3 setting is
recommended .
The distances provided are spec ified values . De­
pending on the driving situation and the how the
vehicle ahead is driving, the actua l distance may
be more or less than these target distances .
The var ious symbo ls for the time increments ap­
pear briefly in the information line @
Q
page 100, fig. 117 when yo u change the set­
tings.
c::::,_ c::::, __ _ Distance 1 : This setting cor responds
to a distance of 92 feet/28 meters when travel­
in g at 62 mph (100 km/h), or a time interval of 1
second .
c::::, __ c::::, __ Distanc e 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 interval of
1.3 seconds .

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Audi adaptive cruise control and braking guard
~--- ~-Di stance 3: This setting corresponds
to a distance of 164 feet/SO meters when travel­
ing at 62 mph (100 km/h), or a time interval of
1.8 seconds.
~ ---- ~ Distance 4: This setting corresponds
to a distance of 210 feet/64 meters when travel­
ing at 62 mph (100 km/h), or a time 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 more 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
conditions.
¢j) Tips
- Distance 3
is set automatically each time
you switch the ignition on.
- Your standard sett ings are automat ically
stored and assigned to the remot e control
k ey be ing used.
Setting the driving program
Applies to vehicles: with Audi adaptive cruise control
Depending on the selected dr iv in g program and
d istance, driving behav ior when accelerating w ill
vary from dynamic to comfortable.
Setting the driving program for vehicles
without Audi drive select*
~ In the radio/MM!*, select: !CARI function but­
ton >
Adaptive cruise control > Driving prog. >
comfort, standard or dynamic . Or
~ Select: ICARI function button> Car systems*
contro l button > Driver ass ist > Adaptive cruise
control > Driving program* > Comfort, Stand­
ard or Dynamic . Setting the driving mode for vehicles with
Audi drive select*
Refer to c!:>poge 112 .
(D Tips
Your settings are automatically stored and as­
s ig ned to the remote control key being used.
Request for driver intervention
Applies to vehicles: with Audi adapt ive cruise control
Fig. 121 Ins trumen t cluster: request for driver interve n­
tio n
In certain situa tions, the system will prompt yo u
to take action . This could happen, for example, if
braking by the adaptive cruise control system is
not enoug h to maintain enough dis tance to the
vehicle ahead.
T he instrument cluster will warn you about the
danger
c!:> fig. 121:
-A red vehicle is pictured in the display.
- The text
DISTANCE ! appears in the status bar.
- The red indicator light. blinks.
- In addition, a warning tone sounds.
103

Audi adaptive cruise control and braking guard
Audi braking guard
Description
Applies to vehicles: with Audi adaptive cruise contro l
Fig. 122 In strument cluste r: appro ach warning
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
si tuation s when a veh icle 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 situat ion.
The system advises you of variou s 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 avo id a collision by swerving or braking
sharply. The indicator light . and indicator in
the d isplay will warn you about the danger
¢fig. 122. You will also hear an acoustic signal.
If you do not react fast enough or do not react at
a ll to the situation, Braking guard will intervene
by braking and the message
braking guard inter­
vention
will appear.
l) This is no t a vail able in som e coun trie s.
104
- If a collision is imminent , the system will first
provid e an
acute warning by briefly and sharply
app lying the b rakes.
- 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 collision ll.
- If the braking gua rd 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 105, 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 collision by itself . The driver must
always inte rvene. 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 approach ing 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
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Audi side assist Side assist
Description
App lies to vehicles: with Audi side assist
Fig. 123 Sensor dete ction rang e
Fig. 124 Display o n the exterio r mirror
Side assist helps you monitor your blind spot and
traffic behind your vehicle . Within the limits of
the system , it warns you about vehicles that are
coming closer or that are traveling with you with­
in sensor range ©
r=;, fig. 123: if a lane change is
classified as critical, the display @ in the exter ior
mirror
r:¢> fig . 124 turns on .
The display in the left exterior mirror provides as­
sistance when making a lane change to the left,
while the d isp lay in the right exterior mirror pro ­
vides assistance when making a lane change to
the right .
Information stage
As long as you do not activate the turn signal,
side assist
informs you about vehicles that are
detected and class ified as critica l. The disp lay in
the respective mirro r turns on , but is dim .
Aud i side assist
The display remains dim intentionally in the in­
formation stage so that your view toward the
front is not disturbed.
Warning stage
If you activate the turn signal , side assist warns
you about vehicles that are detected and classi­
fied as critical. The display in the respect ive mir­
ror blinks bright ly. If this happens, check traffic
by glancing in the rearview mirror and ove r you r
shoulder
c::, .&. in General informa tion on
page 108.
{!) Tips
- You can adjust the brightness of the display
@ c::, page 109.
-Please refer to the instructions for towing a
trailer located in
c::, page 108.
107

Audi side assist
General information
Applies to veh icles: w ith Aud i s ide ass ist
®
@
©
F ig . 125 Driving s ituations
I AU DI
•
Fig. 126 Rear of the veh icle: pos it ion of the sensors
Side assist functions at speeds above approxi­
mately 19 mph (30 km/h).
@ Vehicles that are approaching
In certain cases, a vehicle will be classified as
critical for a lane change even if it is still some­
what far away. The faster a veh icle approaches,
the sooner the display in the exterior mirror w il l
turn on.
@ Vehicles traveling with you
Vehicles traveling with you are indicated in the
exterior mirror if they are classified as critical for
a lane change. All vehicles detected by side assist
108
are indicated by the time they enter your "blind
spot", at the latest .
© Vehicles left behind
If you slow ly pass a vehicle that side assist has
de tected (the diffe rence in speed between the
vehicle and your vehicle is less than 9 mph
(15 km/h)), the display in the exterior mirror
turns on as soon as the vehicle enters your blind
spot .
The display wi ll not turn on if you quickly pass a
vehicle that side assist has detected (the differ­ ence in speed between the vehicle and your vehi­
cle is greater than 9 mph (15 km/h)) .
Functional limitations
The radar sensors are designed to detect the left
and right adjacent lanes when the road lanes are
the normal width . In certain situations, the dis­
play in the exterior mirror may turn on even
though there is no vehicle located in the area
that is crit ical for a lane change. For example:
- if the lanes are narrow or if your are driving on
the edge of your lane. If this is the case, the
system may have detected the vehicle in anoth­
er lane that is
not adjacent to your current lane.
- if you are driv ing through a curve. Side assist
may react to a vehicle that is one lane over
from the adjacent lane .
- if side assist reacts to other objects (such as
high or displaced guard rails) .
- In poor weather conditions. The side ass ist
functions are limited.
Do not cover the radar sensors
c:> fig. 126 with
stickers, deposits, bicycle wheels or other ob­
j ects, because this w ill affect the function . Do not
use side assist when towing a trailer. For infor­
mation on cleaning, refer to
c:> page 193.
A WARNING
- Always pay attention to traff ic and to the
area around your vehicle. Side assist cannot
replace a driver's attention . The driver alone
is always responsible for lane changes and
-
similar driving maneuvers . IJ>-

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0 ::..:: co ..... ..... Audi drive select Driving settings
Introduction
Applies to vehicles: with Audi drive select
Drive select provides the possibility to experience
d iff erent types of vehicle settings in one veh icle.
F or instance, using the three
Comfort, Auto and
Dynamic modes, the driver can switch from a
sporty to a comfortab le 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 possible to combine settings
such as a sporty engine tuning with comfortable
steering.
A WARNING
-
Improper use of the Audi drive select can
cause collisions, other accidents and serious
personal injury .
Description
Applies to vehicles: with Audi drive select
The vehicle setup in each mode depends on the
veh icle's features . However, the engine, auto­
matic transmission* and steering are always in ­
volved.
Engine and automatic transmission*
Depending on the mode, the engine and the au ­
tomatic transm ission 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. Indirect 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 steering.
The follow ing applies to vehicles with dynam ic
steer ing*: the steering rat io changes based on
vehicle speed in order to maintain optimum
steer ing effort for the driver at all times. This
Audi drive select
sets the steering to be less sensitive at higher
speeds in order to provide improved vehicle con­
trol. At reduced speeds, however, steering is
more direct in order to keep the steering effort as
minimal as possible when the driver is maneuver­
ing the vehicle. At low and average speeds, dy ­
nam ic steering additionally prov ides more re­
spons ive steering performance .
Adaptive dampers*
The adaptive dampers* use sensors to record in­
formation regarding steering movements, brak­
ing and acceleration operations by the driver,
road surface, driving speed, and load . This makes
it possible to adapt damping to the driving situa­
tion virtua lly in real time. Drive select also makes
it possible to sat isfy the desire for sporty suspen­
sion (Dynamic) and comfortable suspension
(Comfort) without giving up balanced tuning (Au­
to).
Sport differential*
As a component of the all whee l dr ive system
(quattro)
c::> page 182, the sport different ial* dis­
tributes the driving power to the rear axle de­
pending on the situation. The distribution of
power varies depending on the mode selected.
The goal is a high level of ag ility and ability to ac­
celerate on curves. The vehicle is very responsive
to steering.
Audi adaptive cruise control*
The 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, se lecting the
Dynamic mode resu lts in ...,
111