2020 AUDI A4 warning

Driver assistance

Distance warning
Applies to: vehicles with distance warning
S| iS 9] nN ‘|
ja

Applies to: vehicles with adaptive cruise control:
Fig. 122 Instrument cluster: display of the current dis-
tance
RAZ-0400

Applies to: vehicles with Audi adaptive cruise control
Fig. 123 Instrument cluster: distance warning
General information
At speeds above approximately 40 mph (65
km/h), this function measures the distance to the
vehicle ahead as time. If the distance falls below
the warning threshold and remains there, the
system will warn you of the hazard with the BB
indicator light.
Image in the Driver assistance display
Applies to: vehicles with Audi adaptive cruise control
The display only appears if the Driver assistance
display is selected in the on-board computer
= page 15 and the adaptive cruise control is not
actively controlling the vehicle.
@ Detected vehicle driving ahead
@ Use the markings to help you estimate the
distance to an obstacle. Each marking repre-
sents approximately one second.
@®) Set warning threshold. Depending on the set-
tings, the display will be colored in from the
bottom to the top.
136
@ The actual distance is smaller than the set
distance and you will be informed about the
danger.
Adjusting the distance warning
The system can be switched on or off in the MMI
and you can customize the distance warning
threshold. The settings depend on the vehicle
equipment.
— Applies to: MMI: Select on the home screen:
VEHICLE > Driver assistance > Distance warn-
ing.
Messages
ir °
tion, the distance warning functions may be un-
available or may be limited.

is displayed when there is a malfunc-
A message that indicates the cause and possible
solution may appear with some displays. The
weather conditions may be too poor or a sensor
may be covered. Clean the area in front of the
sensors > page 116 and try to turn on the sys-
tems again later.
If the malfunction remains, drive to an author-
ized Audi dealer or authorized Audi Service Facili-
ty immediately to have the malfunction correct-
ed.

ZA WARNING
Follow the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 114.

Gi) Tips
— The driver is always responsible for adhering
to the regulations applicable in the country
where the vehicle is being operated.
— You may fall below the warning threshold
briefly when passing or when quickly ap-
proaching a vehicle driving ahead. There is
no warning in this scenario. A warning is giv-
en only if you fall below the warning thresh-
old for an extended period of time.

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Driver assistance

Au d i a ctive la ne ass i st Applies to: vehicles with Audi adaptive cruise control
If the conditions are met, traffic jam assist
General information switches on at speeds under approximately

Applies to: vehicles with Audi active lane assist 40 mph (65 km/h) => page 134.
The active lane assist can detect lane marker A WARNING
lines within the limits of the system. If you are
approaching a detected lane marker and it ap- Follow the safety precautions and note the
pears likely that you will leave the lane, the sys- limits of the assist systems, sensors, and
tem can warn you with corrective steering and a cameras > page 114.
steering wheel vibration, if necessary.
The system functions in the speed range of ap-
proximately 40 mph - 155 mph (65 km/h -
250 km/h).
Display and warning
Applies to: vehicles with Audi active lane assist

The availability, readiness to provide warnings,
and the warnings are indicated with indicator
lights. Active lane assist is ready to provide warn-
ings if an object is detected on at least one side
of the lane where your vehicle is traveling.
RAZ-0768)
The displays depend on the vehicle equipment.

Fig. 124 Instrument cluster (multi-color display): driver
assistance display



Driver assistance display Indicator lights
Multi-color Monochrome Audi virtual | Instrument Meaning
display display cockpit cluster (ana-
log)
@ White Dark gray lines 7x 1% Active lane assist is activated, but is
lines not ready to provide warnings.
@ Green Light gray line eit 1X Active lane assist is activated and
lines ready to provide warnings.
@ Red Blinking line 7% ait Active lane assist will warn you be-
line fore the vehicle leaves a lane. The
steering wheel will also vibrate
lightly.
If the system is switched on but is not ready to — The speed is below the activation speed
provide warnings, one of the following could be —The lane is too narrow or too wide
the cause: — The curve is too narrow
— There is no lane marker line — The driver's hands are not on the steering
— The necessary lane marker lines have not been wheel
detected (for example, in a construction zone — Visibility is obstructed by a rise or dip.
or because the lines are obstructed by snow,
dirt, water, or lighting)
137

Driver assistance

Steering intervention request
If no steering activity is detected or the steering
power from the system is not sufficient, the driv-
er steering intervention request will alert the
driver using audio and visual signals. Take over
the steering and keep your hands on the steering
wheel so that you will be ready to steer at any
time. The system may no longer be ready to pro-
vide warnings after a short time, and it will only
become active again later.
If the driver takes over steering, active lane assist
will be switched off.
Behavior when a turn signal is active
Applies to: vehicles with side assist: The system
will not warn you if you activate a turn signal be-
fore crossing the lane marker line. In this case, it
assumes that you are changing lanes intentional-
ly.
Applies to: vehicles with side assist: If the side
assist system classifies a lane change as critical
due to other vehicles traveling with your vehicle
or approaching your vehicle when your turn sig-
nal is activated, there will be a noticeable steer-
ing correction shortly before your vehicle leaves
the lane. This will attempt to keep your vehicle in
the lane.

ZX WARNING
— Follow the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 114.
— The system warns the driver that the vehicle
is leaving the lane using corrective steering.
The driver is always responsible for keeping
the vehicle within the lane.
— Corrective steering may not occur at all in
certain situations, such as during heavy
braking. Always be ready to intervene.

G) Tips
— Always keep your hands on the steering
wheel so you can be ready to steer at any
time. The driver is always responsible for

YD In certain countries
138
adhering to the regulations applicable in
the country where the vehicle is being oper-
ated.
— The system does not provide any corrective
steering or steering wheel vibrations if it de-
tects that you are passing another vehicle.
— The image in the Driver assistance display
only appears if it was opened in the on-
board computer = page 15.
Scare Le melal
Applies to: vehicles with Audi active lane assist

B8V-0692


Fig. 125 Turn signal lever: switching Audi active lane assist
on and off
Active lane assist switches on automatically as
soon as the ignition is switched on )).
> To switch the system on or off, press the button
=> fig. 125. The respective indicator light in the
instrument cluster will turn off or on.

ZA\ WARNING
Follow the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 114.
Adjusting Audi active lane assist
Applies to: vehicles with Audi active lane assist


You can adjust active lane assist individually. The
settings depend on the vehicle equipment.
> Applies to: MMI: Select on the home screen:
VEHICLE > Driver assistance > Audi active lane
assist
Possible settings:

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Driver assistance

— Steering correction - With the Early setting,
steering correction occurs continuously in order
to help the driver keep the vehicle in the center
of the lane. In the Late setting, the steering
correction will only occur shortly before a wheel
crosses a detected lane marker line.
— Vibration warning - You can select if you would
also like to be warned using a vibration in the
steering wheel.
@ Tips
Certain settings are automatically stored and
assigned to the remote control key being
used.
Applies to: vehicles with Audi active lane assist
ri or is displayed when there is a malfunc-
tion, the active lane assist functions may be un-
available or limited.
A message that indicates the cause and possible
solution may appear with some displays. The
weather conditions may be too poor or the cam-
era may be covered. Clean the area in front of the
camera > page 116 and try to turn on the sys-
tems again later.
If the malfunction remains, drive to an author-
ized Audi dealer or authorized Audi Service Facili-
ty immediately to have the malfunction correct-
ed.
Audi pre sense
Introduction
Applies to: vehicles with Audi pre sense
Within the limits of the system, the Audi pre
sense functions can initiate measures in certain
driving situations to protect the vehicle occu-
pants and other road users. Depending on the ve-
hicle equipment, various Audi pre sense systems
may be installed:
— Audi pre sense basic can react during emergen-
cy and dangerous braking maneuvers and un-
stable driving situations (such as oversteering
or understeering).
— Audi pre sense front can detect an impending
frontal collision with vehicles ahead and react
with warnings, braking interventions, and pre-
emptive safety measures for the vehicle occu-
pants.
— Audi pre sense city can detect an impending
collision with vehicles and pedestrians and re-
act with warnings, braking interventions, and
preemptive safety measures for the vehicle oc-
cupants.
— Audi pre sense rear monitors the rear traffic
behind your vehicle and can react to an impend-
ing rear impact.
— The swerve assist can help you to steer the ve-
hicle around an obstacle during an evasive ma-
neuver that is detected as critical.
— The turn assist can detect vehicles in the oppo-
site lane and react with braking maneuvers.
Peele ea ey
Applies to: vehicles with Audi pre sense
Depending on the vehicle speed and the vehicle
equipment, the following functions may be initi-
ated in certain situations:
— Visual and audio warnings
— Reversible tensioning of safety belts
— Closing the windows and panoramic glass roof
— Adjusting the seats

Z\ WARNING
Follow the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 114.
G) Tips
— Depending on the dangerous situation that
is detected and the selected Audi drive se-
lect* mode, all preemptive safety measures
may not be initiated under certain circum-
stances. Certain functions can be adjusted
or skipped if necessary.
— Audi pre sense may be restricted or unavail-
able under certain circumstances, for exam-
ple if:

— There are passengers with unfastened
safety belts
139

Driver assistance

— It has only been several seconds since the
ignition was switched on Th indicator
light turns on.
— When driving in reverse
— The front passenger's airbag is switched
off
— There is an airbag control module mal-
function

— System functions may not be available if
the ESC is limited or switched off, or if
there is a malfunction.
PN eye
Applies to: vehicles with Audi pre sense basic
Audi pre sense basic is automatically active at
speeds of approximately 20 mph (30 km/h) and
higher. The system can trigger the Audi pre sense
preemptive safety measures during emergency
braking and dangerous braking maneuvers as
well as in unstable driving situations, such as
oversteering or understeering.

ZA WARNING
Follow the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 114.
Audi pre sense front
Applies to: vehicles with Audi pre sense front

The Audi pre sense front system uses the data
from the radar sensors and calculates the proba-
bility of a rear-end collision. Within the limits of
the system, an impending collision with the front
of the vehicle can be detected in both urban and
rural speed ranges.
Early warning/acute warning
The system can recognize various dangerous sit-
uations. The early warning occurs if:
— Avehicle driving ahead brakes suddenly
— Your own vehicle approaches a significantly
slower vehicle or stationary vehicle in the direc-
tion of travel
The message Audi pre sense [@) or Audi pre
sense wa and a warning tone will warn you about
the danger.
140
If there is an impending collision with vehicles,
there may also be an acute warning in the form
of sharp braking. You will also be warned by an
indicator in the instrument cluster display. When
this warning occurs, it may only be possible to
avoid a collision by swerving or braking strongly.
Automatic deceleration
If you do not react to the acute warning, Audi pre
sense can brake the vehicle to a full stop within
the limits of the system if the vehicle is traveling
at low speeds. This reduces the vehicle speed in
the event of a collision.
Automatic braking force increase
If Audi pre sense determines that you are not
braking strongly enough when a collision is immi-
nent, it can increase the braking force based on
the situation.

Z\ WARNING
— Follow the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 114.
— Audi pre sense front cannot overcome natu-
ral physical laws. It is a system designed to
assist and it cannot prevent a collision in ev-
ery circumstance. The driver must always in-
tervene. 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.
— Audi pre sense front does not react to cer-
tain objects, such as people/cyclists, ani-
mals, crossing or oncoming vehicles, bars,
railings, or railcars.
— Audi pre sense front may be limited or un-
available when driving in curves.
— Loose objects can be thrown around the ve-
hicle interior during sudden driving or brak-
ing maneuvers, which increases the risk of
an accident. Store objects securely while
driving.

G) Tips
Certain pre sense front functions will switch
off when the ESC is restricted or switched off >

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Driver assistance

= page 110, when there is a malfunction, or
when the hill hold assist* is switched on
= page 105.
Ne Cea ial
Applies to: vehicles with Audi pre sense city
Audi pre sense city uses data from the camera
and calculates within the limits of the system the
probability of a collision with vehicles and pedes-
trians.
Audi pre sense city is active at speeds of approxi-
mately 6 mph (10 km/h) and higher.
It can warn about pedestrians at speeds up to ap-
proximately 50 mph (85 km/h) and vehicles at
speeds up to approximately 155 mph (250
km/h).
Automatic deceleration is possible at speeds up
to 50 mph (85 km/h).
Early warning/acute warning
The system can recognize various dangerous sit-
uations. The early warning occurs if:
— Avehicle driving ahead brakes suddenly
— Your own vehicle approaches a vehicle in front
of you that is traveling at a significantly slower
speed or that is stationary
— A pedestrian is standing in the lane or is mov-
ing into the lane
A warning tone and the message Audi pre
sense Bo or Audi pre sense wB (depending on ve-
hicle equipment) will warn you about the danger.
If there is an impending collision with vehicles,
there may also be an acute warning in the form
of sharp braking. You will also be warned by an
indicator in the instrument cluster display. When
this warning occurs, it may only be possible to
avoid a collision by swerving or braking strongly.
Automatic deceleration
If you do not react to the acute warning, Audi pre
sense can brake the vehicle to a full stop within
the limits of the system if the vehicle is traveling
at low speeds. This reduces the vehicle speed in
the event of a collision.
Automatic braking force increase
If Audi pre sense determines that you are not
braking strongly enough when a collision is immi-
nent, it can increase the braking force based on
the
situation.

Z\ WARNING
— Follow the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 114.
— Audi pre sense city cannot overcome natural
physical laws. It is a system designed to as-
sist and it cannot prevent a collision in every
circumstance. The driver must always inter-
vene. 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.
— Audi pre sense city does not react to certain
objects, such as animals, crossing or oncom-
ing vehicles, bars, railings, or railcars.
— Audi pre sense city may be limited or un-
available in curves or when it is dark.
— Loose objects can be thrown around the ve-
hicle interior during sudden driving or brak-
ing maneuvers, which increases the risk of
an accident. Store objects securely while
driving.

@) Tips
Certain pre sense front functions will switch
off when the ESC is restricted or switched off
= page 110, when there is a malfunction, or
when the hill hold assist* is switched on
=>page 105.
ONC t Le
Applies to: vehicles with Audi pre sense rear
Within the limits of the system, Audi pre sense
rear uses data from radar sensors in the rear area
of the vehicle and calculates the probability of a
rear-end collision with the vehicle behind you.
Audi pre sense preemptive safety measures can
be initiated if the risk of a collision with the vehi-
cle behind you is detected.
141
>

Driver assistance


ZA WARNING
— Follow the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 114.
— Audi pre sense rear does not react to pedes-
trians, animals, crossing objects, and ob-
jects
not detected as vehicles.

G@) Tips
Audi pre sense rear functions may also switch
off if there is a malfunction in the side assist
system.
Saree cid
Applies to: vehicles with swerve assist
The swerve assist can help you to steer the vehi-
cle around an obstacle detected in a critical area.
If you avoid an obstacle after the acute warning,
then the swerve assist assists you by applying
slight steering adjustment to correct your steer-
ing wheel angle as long as you are actively steer-
ing. Swerve assist is available at speeds between
approximately 20 mph (30 km/h) and 90 mph
(150 km/h).

ZA WARNING
— Follow the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 114.
— Swerve assist does not react to pedestrians,
animals, crossing objects, and objects not
detected as vehicles.
@) Tips
— System functions may not be available if the
ESC is limited or switched off, or if there is a
malfunction.

— An indicator in the instrument cluster will
inform you when there is an intervention.

2) When making a right turn in countries with left-hand drive
vehicles.
2) Incertain countries
142
ae
Applies to: vehicles with turn assist
When your vehicle is turning
The turn assist can assist you with a braking in-
tervention when starting to drive or when driving
slowly, to reduce the risk of your vehicle colliding
with an oncoming vehicle when you are making a
left turn). The braking intervention causes your
vehicle to stay in its lane. The function is only
available when the turn signal is turned on and at
speeds up to maximum of 6 mph (10 km/h).

Z\ WARNING
— Follow the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 114.
— The turn assist does not react to pedes-
trians, animals, crossing objects, and ob-
jects not detected as vehicles.
@) Tips
— System functions may not be available if the
ESC is limited or switched off, or if there is a
malfunction.
— An indicator in the instrument cluster will
inform you when there is an intervention.
Adjusting Audi pre sense
Applies to: vehicles with Audi pre sense

You can adjust the Audi pre sense functions to
your preferences. The settings depend on the ve-
hicle equipment.
> Applies to MMI: Select on the home screen: VE-
HICLE > Driver assistance > Audi pre sense.
Possible settings:
The pre sense functions can be switched on and
off.
Prewarning” - The prewarning can be switched
off or the Audi pre sense warning time can be set
(Early/Medium/Late). >

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Driver assistance

Set the warning time for the early warning to
Early at first. If this causes undesired early warn-
ings to appear, then set the warning time to Me-
dium. The Late warning time should only be set
in special circumstances.

Tips
— If Audi pre sense is switched off, it switches
on again automatically once the ignition is
switched on again.)
— Switch Audi pre sense off when you are not
using public streets, when loading the vehi-
cle onto a vehicle carrier, train, ship, or oth-
er type of transportation, or when towing
the vehicle. This can help to prevent an un-
desired intervention from the Audi pre
sense system.
— Certain settings are automatically stored
and assigned to the remote control key be-
ing used.
Messages
Applies to: vehicles with Audi pre sense
re ° is displayed when there is a malfunc-
tion, the Audi pre sense functions may be un-
available or may be limited.

A message that indicates the cause and possible
solution may appear with some displays. The
weather conditions may be too poor or a sensor
may be covered. Clean the area in front of the
sensors © page 116 and try to turn on the sys-
tems again later.
If the malfunction remains, drive to an author-
ized Audi dealer or authorized Audi Service Facili-
ty immediately to have the malfunction correct-
ed.

D_Incertain countries
Side assist
Cette) aCoy a)
Applies to: vehicles with side assist
al 3 a z
e|


Fig. 126 Examples: driving situations and exterior mirror
display
General information
Side assist monitors the blind spot and traffic be-
hind your vehicle and provides assistance when
you are changing lanes. If the system detects an
object approaching and classifies it as critical, the
display @ in the exterior mirror on that side of
the vehicle will turn on,
Driving situations
The side assist warning is active at speeds above
approximately 9 mph (15 km/h) and can help in
situations such as the following:
@ Your vehicle is being passed. The faster an-
other vehicle approaches from behind, the
sooner the display in the outside mirror will
turn on.
@® There are vehicles traveling in the same direc-
tion as you ina lane adjacent to yours. The
display in the exterior mirror will turn on
143
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