2017 AUDI A4 ESP

also start driving again automatically under cer­
tain conditions
c!;> page 100.
In traffic jams or slow-moving traffic, congestion
assist can assist the driver¢
page 104 .
Which functions can be controlled?
When you switch adaptive cruise control on, you
can set the current speed as the "control speed "
c!;> page 98, Switching on/off.
When driving, you can stop cruise control
c!;> page 100 or change the speed ¢ page 99 at
any time .
You can also set the dist ance to the vehicle d riv­
ing ahead and set the driving mode of the adap ­
tive cruise control¢
page 101 .
General information
Appl ies to: ve hicles with Audi adaptive cruise co ntro l
Fig. 90 Fro nt o f th e ve hicle : sensor s and video c amer a
The areas wi th the radar and ul trasonic senso rs
and the video camera¢
fig. 90 must not be cov­
ered by stickers, deposits or any other objects ,
because this can interfere with the adaptive
cruise control function. For information on clean­ ing, refer to¢
page 337. The same applies for
any modifications made in the front area .
In some driving situations , the adaptive cruise
control function is restricted:
- Vehicle s can only be detected when they are
within the sensor detection zones
¢ page 96,
fig . 89 .
-The system has a limited ability to detect
vehicles that are a short distance ahead, off to
the side of your vehicle or moving into your lane .
Assist
-Objects that are difficult to detect such as mo­
torcycles, v ehicles with high ground clearance
or an overhanging load are detected late or not
detected at all.
- When driving through curv es
c!;> pag e 98.
- When the vehicle is stationary ¢ page 98.
A WARNING
Always pay attention to the traffic around you
when adaptive cruise control is switched on .
As the driver, you are still responsible for your
own speed and the distance to other vehicles.
The adaptive cruise control is used to assist
you . The driver must always take action to
avoid a collision . The driver is always responsi­
ble for braking at the correct time .
- For safety reasons, do not use adaptive
cruise control when the road surface is in poor condition and/or in bad weather condi ­
tions (such as ice, fog, gravel, heavy rain and
hydroplaning). Using the system under
these conditions increases the risk of an ac­ cident.
- Switch adaptive cruise control off tempora­ rily when driving in turning lanes, on ex­
pressway exits (except if predictive control
is switched on) or in construction zones.
This prevents the vehicle from accelerating
to the stored speed when in these situa ­
tions .
- 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 obstacles
such as stopped traffic, adaptive cruise con­
trol will respond with limited function .
-Adaptive cruise control does not respond to
people, animals, or crossing or oncoming
objects.
- 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.
~
97

.. To resume cruise control, release the lever or
take your foot off the acce lerator pedal.
Canceling cruise control while driving
.. Move the lever into posit ion @. The message
ACC: standby 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 @.
The message
ACC : standby 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 per­
m it this . This increases the risk of an acc ident.
Setting the distance
A ppl ies to: ve hicles with Audi adaptive cruise co ntro l
,
0
Fig . 98 Operating lever: sett ing the dista nce
.. Tap the rocker switch to display the current set
distance
c:> fig. 98.
.. To increase or reduce the distance in incre­
ments, tap the switch upward/downward
again . The distance between the two vehicles
will change in the instrument cluster display.
When approaching a veh icle driving ahead, the
adapt ive cruise control system brakes to match
that vehicle's speed and then adjusts to the set
d istance. If the vehicle driv ing ahead accelerates,
then the adaptive cruise cont rol w ill also acceler­
ate up to the speed that you have set.
Assist
The higher the speed, the greater the distance
c:> &. The Distance 3 setting is recommended.
That is equal to the general recommendation of "ha lf the speed shown on the speedometer" .
T he distances provided are specified values. De­
pending on the driving situation and how the ve­
hicle ahead is driving, the actual distance may be
more or less than these target distances.
If you change the time gaps, the newly set value
appears brief ly in the instrument cluster display
II for example for Distance 3. This only occurs if
Driver assist is current ly not shown in the display
c:> page 98, fig. 94 .
Distance 1: this setting corresponds to a distance
of 92 feet (28 meters) when traveling at 62 mph
(100 km/h), or a time distance of 1 second .
Distance 2: this setting corresponds to a distance
of 118 feet (36 meters) when traveling at 62
mph (100 km/h), or a time distance of 1.3 sec­
onds.
Distance 3: this setting corresponds to a distance
of 164 feet (SO meters) when traveling at 62
mph (100 km/h), or a time distance of 1.8 sec­
onds.
Distance 4: this setting corresponds to a distance
of 210 feet (64 meters) when traveling at 62
mph (100 km/h), or a time distance of 2 .4 sec­
onds.
Distance 5: this setting corresponds to a distance
of 328 feet (100 meters) when traveling at 62
mph (100 km/h), or a time distance of 3 .6 sec­
onds.
A WARNING
-When setting the distance, the driver is re-
sponsible for adheri ng to any applicable legal
regulations.
@ Tips
- Distance
3 is set automatically each time
you switch the ignition on. If you would like
to set another distance as the standard set­
ting, you can have the
Adaptive cruise con­
trol
menu enabled by an authorized Audi
dealer or authorized Audi Service Facility.
101

<( a, .... N ,....
N .... 0 0
3 a,
Indicator in the instrument cluster display
When the adaptive cruise control is switched on
for the first time, th e availability of predictive
control is displayed in the status line with the m essage
ACC: 1111 + B active.
The symbol appears when the system
is regulating the speed to match a speed limit. As
an example, the system is regulating a speed of
50 mph (80 km/h) in this scenario. The speed is
then taken over by the adaptive cruise control.
The speed in the speedometer LED line also ad­
justs to the speed to be maintained
c::> page 98,
fig .
94. The 111B c::> fig . 100 symbol appears
when there is an adaptation to the route ahead .
If you are in the
Driver assist display in the in­
strument cluster, then the following symbols will indicate which occurrence the system is currently
responding to .
Symbol Meaning
MPH
USA models:
Speed limit
km/h
Canada models:
Speed limit
Ir
Curve
_J!L
-1:r
Intersection
~
Traffic circle
A WARNING
- Read the warnings on c::> & in General infor ­
mation on page 97
and on c::> & in Descrip­
tion on page 24 .
- Pay attention to traffic and the area around
your vehicle when predictive control is switched on. The driver is always responsi­
ble for correctly assessing the traffic situa­
tion.
- There is an increase in the risk of an acci­
dent, because the system does not consider
"right of way" rules and also does not re­
spond to traffic lights .
- The system only considers traffic signs that
give a speed limit.
Assist
- The permitted speed can be exceeded if the
adaptation to a speed limit is incorrect. The
driver is responsible for adhering to the per­
mitted speed.
- The speed at which a curve is driven through
does not necessarily match your own driving
style . Brake the vehicle yourself when need ­
ed to reduce the risk of an accident.
(D Tips
-If a speed limit is detected, the stored
speed is also adjusted in the speedometer
LED line when the adaptive cruise control is
not active.
- The adaptation by the system depends on
the driving mode set in drive select* .
- Switching off predictive control, for exam­
ple when driving in low traffic zones, does
not cause the adaptive cruise control to
switch off .
-After switching on the ignition, the system
initially adjusts to a speed of 80 mph
(130 km/h) when driving onto highways
without a speed limit. Then the system ad­
justs to the last speed stored by the driver.
- There is no adaptation to speed limits when
driving through highway interchanges and
when driving on or off the expressway.
- There is no predictive control at speed limits
under 20 mph (30 km/h).
- If a speed limit is only detected by the cam­
era and the actual speed is significantly
higher, then the speed limit will blink in the
display until you have reached the required
speed
c::> page 25.
- Incorrect values from the camera-based traffic sign recognition* or outdated naviga­
tion system map data can lead to incorrect
or implausible control.
- When route guidance is switched on, the
system adapts to the route provided by the
navigation system. Driving without route
guidance or leaving a route can result in im­
plausible control.
- The system switches
off when outside of a
road system that is recorded in the naviga­
tion system map data.
103

using the multifunction steering wheel buttons
¢
page 12. To activate congestion assist, you
must press the¢
fig. 101 button and switch on
the adaptive cruise control¢
page 98.
Indicator lights
11'1 and•-congestion assist is switched on .
Veh icles driving ahead were detected. Your vehi­
cle adapts while driving
¢ fig. 102 .
•-Congestion ass ist switches off if the dr iver
does not take ove r stee ring after multip le driver
intervention requests . The system brakes the ve ­
hicle until it is stationary .
.&_ WARNING
Always keep your hands on the steering whee l
so you can be ready to steer at any time. The
driver is always responsib le for staying in a
lane and for assessing traffic situations cor­
rectly . Read and follow the warnings on¢.&
in General information on page 97 . Never use
conge stion assist in the following si tuations
or yo u will increase t he ris k of an a cci den t.
- Drivi ng offroad or on unpaved roads. Con-
gestio n assist is only designed for use on
paved roads.
- In city dr ivi ng or in co nst ru ct ion zones.
- On curving stretches of road .
- In narrow lanes.
- In unclear traffic situations s uch as at inter-
sections or toll stations.
@ Tips
You are not necessarily g uided to the center
of yo ur lane.
A ss ist
Distance indicator and
distance warning
Description
Applies to: vehicles with Audi adaptive cruise control
Fig . 1 03 Instrumen t cl uster: dist ance indicato r/warn ing
At speeds above 65 mph , this function measures
the time between the vehicle driving ahead and
shows th is in the instrument cluster display
¢ fig . 103 ..
You can set a wa rning thresho ld between 0 .6 and
3.0 seconds. The . indicator light appears if you
fall be low the set d istance.
Switching the distance indicator /warning on
and off
.. In the Infotainment system, select: I MENU I
button > Veh icle > left control button > Driver
ass ist> Distan ce warning .
.&_ WARNING
-
- Read and fo llow the warnings on¢.& in
General information on page
97.
-
- The drive r is always responsible fo r adhering
to the regulat ions app licab le in that coun­
try .
@ Tips
You may fall below he warning thresho ld
briefly when passing or when q uickly ap­
p roaching a slow vehicle. There is no war ning
i n this scenar io. A warning is g iven only if you
fall be low the warning thresho ld for a n ex­
tended per io d of t ime.
105

Ass is t
- Note that the reversible belt tensioner on
the front passenger's side deactivates when
the front passenger's a irbag is deactivated.
- Switch the pre sense off when you are not
using public streets or when loading the ve­
hicle onto a vehicle carrier, train, ship or
other type of transportation. This can pre­
vent an undes ired intervention from the pre
sense system .
Audi pre sense basic
Description
Applies to: vehicles with Aud i pre sense basic
The pre sense basic functions are activated at a
speed of approximately 20 mph (30 km/h) or
h igher.
The fo llowing functions can be triggered unde r
certain conditions within the limits of the sys­
tem:
- Tensioning of the safety belts (for example,
during heavy braking): the front sa fety belts
have reversible belt tensioners . If a collision
does not occur, the safety belts loosen slightly
and are ready to trigger again.
- The emergency flashers activate
1) , the win ­
dows and the sunroof* close (for example when
under- or oversteering) : the clos ing process for
the windows and the sunroof* in itiates.
The message
Audi pre sen se. ~ page 108,
fig. 104 will warn you abo ut the danger.
Aud i drive select*: the trigger times are adjusted
depending on the mode selected .
Audi pre sense front
Description
Applies to: vehicles with Audi adapt ive cruise control
W ith in the lim its of the system, pre sense front
can wa rn you of impending coll is ions and initiate
the co rresponding brak ing mane uvers o r the sup ­
port ing measures when avoiding a collision .
1> This is not ava ilab le in some co untri es.
108
If detected in time, the system can rank the dan ­
gerous situation as critical if a vehicle driving
ahead brakes suddenly, if your own veh icle is ap­
proaching a significant ly slower veh icle at h igh
speed or when there is an oncoming veh icle dur­
i ng a turning maneuver .
If detection is not possible, then pre sense front
does not react.
Warnings
Applies to: vehicles with Audi adapt ive cru ise control
F ig . 104 Instrument cl uster : approach warning
G eneral information
The system recognizes various dangerous situa ­
tions. The
early w arning occurs when:
- a vehicle d riving ahead bra kes sudde nly,
- your own veh icle approaches a sign ificant ly
slower ve hicle or stationa ry vehicle in the direc­
tion of trave l.
When this warn ing occurs, it may o nly be possi ­
ble to avo id a collision by swerving or braking
strongly. The message
Audi pre sen se.
~ fig. 104 and a wa rning tone will warn you
abo ut the dange r.
If you do not react enough or no t at all to a dan­
gerous s ituation that was detected by the sys­
tem, p re sense front provides assis tance by ap ­
ply ing the b rakes .
If a collision is imminent, the system will fi rst
provide an
a cute warning by b raking sharply. You
will a lso warned by an indica to r in the instrument
cl us ter disp lay ~
fig. 104. If yo u do not react to
the acute warning, pre sense front can brake with
IJ>-

<( a, .... N ,....
N .... 0 0
3 a,
increasing force within the limits of the
system
l)_ This reduces the vehicle speed in the
event of a collision. At low vehicle speeds, pre
sense front can initiate a complete deceleration
shortly before a collision with a vehicle driving
ahead
1>. If pre sense front determines that you
are not braking strongly enough when a collision
is imminent, it can increase the braking force .
The following functions trigger in conjunction
with pre sense basic/rear at corresponding vehi ­
cle speeds :
- Reversible tensioning of the front safety belts.
- Closing the windows and sunroof*.
- Inflating the side bolsters* in the seat backrest
and seat surface.
Audi drive select*: the reversible belt tensioner,
the closing of the windows and sunroof* as well
as the inflating of the side bolste rs* on the seat
backrest and seat surface are not active depend­
ing on the mode selected .
Collision avoidance assist
Collision avoidance assist helps you to steer the
vehicle around an obstacle in a critical situation.
If you avoid an obstacle after the acute warning,
then the collision avoidance supports you by ap­ plying slight steering adjustment to correct your
steering wheel angle as long as you are actively
steering. Collision avoidance assist is available at
speeds between approximately 20 mph (30 km/
h) and 90 mph (150 km/h).
Turn assist
When starting to drive and up to speeds of maxi­
mum 6 mph (10 km/h), the turn assist uses a
braking intervention to prevent your vehicle from
colliding with an oncoming vehicle when turning left or right (available in certain countries) . The
braking intervention causes your vehicle to stay
in its lane.
.8, WARNING
-Pre sense front cannot overcome the laws of
physics.
It is a system designed to assist and
1) This is not availa ble in some co untries.
Assist
it cannot prevent a collision in every circum­
stance. The driver must always intervene.
The driver is always responsible for braking
at the correct time. Do not let the increased
safety provided tempt you into taking risks .
This could increase your risk of a collis ion.
- The system can deploy incorrectly due to
system-specific limits.
- Please note that the sensors and the camera
do not always detect all objects or lane
markings . This increases the risk of an acci­
dent.
- Pre sense front does not react to people, an­
imals or objects that are crossing the vehi­
cle 's path or that are difficult to detect
c> &..
in General information on page 97.
-Reflective objects such as guard rails or the
entrance to a tunnel, heavy rain and ice can
affect the function of the radar sensors and
the system's ability to detect a collision risk.
(D Note
The sensors 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 dealer or au­
thorized Audi Service Facility check their func­
tion.
(D 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 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 are switch­
ed off when the ESC is limited or switched
off
c> page 135 .
109

Assist
Audi pre sense rear
Description
App lies to: ve hicles w ith Audi side assist
If the risk of a collision is detected, the following
functions can trigger:
- Reversible tensioning of the front safety belts
at the corresponding speeds .
- Closing the windows and sunroof*.
- Inflating the side bolsters* in the seat backrest
and seat surface.
- Switching on the emergency flashers with in-
creased frequency
l ).
The message Audi pre sense. ~ page 108,
fig. 104 will warn you about the danger.
Aud i drive select*: the function is not active de­
pending on the mode selected.
A WARNING
- To reduce the risk of an accident, please
note that the side assist* radar sensors do
not always detect every object.
- Pre sense rear does not react to people, ani­
mals or objects that are crossing the vehi­
cle's path or that are difficult to detect.
- Reflective objects such as guard rails, heavy
rain and ice can impair the function of the
radar sensors and the ability to detect a col­
lision risk .
(D Note
The radar sensors can be displaced by impacts
or damage to the bumper, wheel housing and
underbody. Pre sense rear can be impaired by
this . Have an authorized Audi dealer or au­
thorized Audi Service Facil ity check their func­
tion.
(0 Tips
- The pre sense rear functions switch off
when towing a trailer.
- The pre sense rear functions may also
switch off if there is a malfunction in the
side assist* system.
1> This is not ava ilab le in some co untri es.
110
Audi pre sense city
' Description
App lies to : vehicles wit h Audi pre sense city
Within the limits of the system, pre sense city
can warn you of impending collisions with
vehicles and pedestrians and initiate the applica­
ble braking maneuver if needed. Pre sense city is
active at a speed of 6 mph (9 km/h) and higher.
A pedestrian warning can occur at speeds up to 50 mph (85 km/h), and vehicle warnings can oc­
cur at speeds up to 155 mph (250 km/h). A pre
sense city braking maneuver is possible at speeds
up to 50 mph (85 km/h).
Warnings
App lies to: vehicles wit h Aud i pre sense city
The system recognizes various dangerous situa­
tions. The
early warning occurs when:
- a vehicle driving ahead brakes sudden ly,
- your own vehicle approaches a sign ificantly
slower vehicle or stationary vehicle in the direc­
tion of travel.
- a pedestrian is standing in the lane or is moving
into the lane.
When this warning occurs, it may only be possi­
ble to avo id a collision by swerving or braking
strongly. The message
Audi pre sense.
~ page 108, fig. 104 and a warning tone will
warn you about the danger.
Additionally, a jerk on the brakes may occur as an
acute warning when there is an impend ing colli­
sion . If you do not react to the acute warning, pre
sense city can brake to the point of complete de­
ce leration within the limits of the system. This
reduces the vehicle speed in the event of a colli­
sion. The message
Audi pre sense. also ap­
pears.
The following functions are triggered in conjunc­
tion with pre sense basic/rear:
- Reversible tensioning of the front safety belts .
- Closing the windows and sunroof*. ..,

<( a, .... N ,....
N .... 0 0
3 a,
-Inflating the side bolsters* in the seat backrest
and s eat surfac e.
Aud i drive select*: the function is not active de ­
pending on the mode selected.
A WARNING -,..___
-Pre sense city cannot overcome the laws of
physics. It is a system designed to assist and
it cannot prevent a collision in every circum­
stance. The driver must always intervene.
The driver is always responsible for braking at the correct time . Do not let the increased
safety provided tempt you into taking risks.
This could increase your risk of a collision .
- The system can deploy incorrectly due to
system-specific limits.
- To reduce the risk of an accident, please
note that the camera does not always detect
every object .
- Pre sense city does not react to animals,
crossing or oncoming vehicles, objects such
as bars, railings or railcars, and objects that
are difficult to detect~&.
in General infor­
mation on page 97.
A WARNING
Pre sense city may be restricted or not availa­
ble in the following example situations:
- in heavy fog, rain, spray or snow.
- when there are visual obstructions, such as
glare, reflections or var iations in light.
- when it is dark .
- if the camera window or the windshield is
dirty, iced over, damaged or covered .
- when driving on snow, ice or loose ground .
- on sharp curves.
- if the ESC was restricted or switched off .
- when towing a trailer.
- when the driver's seat belt is unfastened.
- up to ten seconds after sw itching on the ig-
nition.
1 ) Thi s is no t avail able in some c oun tries.
Assist
(D Note
Impacts or damage to the camera mount on
the windshield can displace the sensor . Pre
sense city can be impaired by this. Have an au­
thorized Audi dealer or authorized Audi Serv­
ice Facility check their function .
(i) Tips
-You can cancel the system braking interven­
tion if you accelerate considerably or swerve
away .
- Keep in mind that pre sense city can brake
unexpectedly. Always secure any cargo or
objects that you are transporting to reduce
the risk of damage or injury.
- When there is a malfunction in the camera,
the pre sense city functions also switch off.
Settings in the
Infotainment system
Applies to: vehicles with Aud i pre sense
.,. Select in the Infotainment system: I MEN U! but­
ton
> Vehicle > left control button > Driver as­
s ist > Audi pre sense.
Audi pre sense-
switch On/Off. You can switch
the pre sense functions on and off with th is.
If the system is switched off, it switches on again
automatically once the ignition is switched on
again
l ).
Early warning1
) -the early warning can be
switched off or the pre sense city/front warning
point
( Early /Mediu m/La te) can be set .
Driver messages
Applies to: vehicles with Aud i pre sense
fll Audi pre sense currently restricted. Restrict­
ed sensor vision due to surroundings. See own­
er's manual
This message appears if the radar sensor and
camera view is obstructed, for example by leaves,
snow, heavy spray or dirt . If necessary , clean the .,..
111