Get Systems for braking and taking evasive action -> Guide for Audi RS6 4 Door Fourth Generation (2019-2025)

Systems for braking and taking evasive action

– Seat belt jolt

Systems for braking and

taking evasive action

– Brake jolt

– Hazard warning lights are activated

– Protective measures of the proactive occupant

protection system are triggered

– The brakes are applied and the vehicle is

brought to a standstill

Emergency assist

Introduction

The emergency assist can detect if the driver is

inactive within certain system limits. In such ca-

ses, the system is activated automatically. The

driver is prompted to take control of the vehicle

by visual, acoustic and haptic measures. If the

driver does not take control, the system takes

over operation of the vehicle within the limits im-

posed by the system to bring it to a standstill in

the same lane.

– The vehicle’s horn sounds repeatedly

As soon as the vehicle is stationary, the parking

brake is applied, transmission position P is selec-

ted, the doors are unlocked and the interior

lights are switched on. A few seconds after the

1)

vehicle has stopped, an emergency call will be

placed if necessary.

Only some of the measures may be activated de-

pending on the hazard situation detected and the

vehicle equipment. Some measures may be modi-

fied or skipped.

WARNING

– Please note the safety precautions and sys-

tem limits of the supporting systems, sen-

sors and cameras ðpage 130 to

Availability of the emergency assist

ðpage 132.

The emergency assist is available automatically,

irrespective of speed, when it is switched on and

lane guidance is active. When lane guidance is

not active, the emergency assist is only available

at speeds above approx. 65 km/h.

– The emergency assist is a system which is

designed to help (in an emergency only) by

taking control of the vehicle and bringing it

to a stop. If the system is activated at an un-

desirable time, you can cancel the emergen-

cy assist.

If any of the requirements for the adaptive cruise

control, lane guidance or lane departure warning

are no longer met, the functionality of the sys-

tem may be restricted.

– The emergency assist is not designed to

avoid collisions with physical lane delinea-

tors, such as concrete barriers.

After the emergency assist is activated, you must

wait for a short period of time before it can be ac-

tivated again.

Measures and availability of the emergency

assist

Measures implemented by the emergency

assist

Display overview

If the system detects that the driver is inactive, it

issues a warning in the form of the

and a corresponding driver message.

The vehicle can intervene within the limits of the

system. The following measures may be imple-

mented in stages:



symbol



The

symbol shown by the emergency assist

– Visual and acoustic warnings

indicates that the distance regulation is active

and the system is intervening in the braking.

– Support with controlling the vehicle through

distance regulation and lane guidance

– Gradual reduction in vehicle speed

– Infotainment volume reduction



The

symbol shown by the emergency assist

indicates that the distance regulation and lane



1)

This function is not available on all models or in all coun-

tries.

160

Systems for braking and taking evasive action

guidance are active and the system is intervening

in the braking.

WARNING

Please note the safety precautions and system

limits of the supporting systems, sensors and

cameras ðpage 130 to ðpage 132.

WARNING

Please note the safety precautions and system

limits of the supporting systems, sensors and

cameras ðpage 130 to ðpage 132.

Driver messages about the emergency

assist



Using the emergency assist

Automatic activation

If

or

is displayed in the event of a fault,

the emergency assist functions are unavailable or

restricted.

Within certain limits imposed by the system, the

emergency assist is activated automatically if it

detects that the driver is inactive.

A driver message indicating the cause and possi-

ble remedy may appear for some of the displays.

To view further information, open the notifica-

tion centre on the centre display. The weather

conditions may not be good enough, or a sensor

may be obstructed. Clean the area in front of the

sensors ðpage 133. Check whether the issue

still occurs the next time you switch on the vehi-

cle.

If the vehicle is being driven manually without

any assist systems that intervene in the steering,

the time that passes before the driver is identi-

fied as inactive can be adjusted via the sensitivity

setting. The sensitivity can be adjusted in the

Driver assist menu  ðpage 134. Low sensitivi-

ty results in the emergency assist being activated

later if the vehicle is being driven manually with-

out any assist systems that intervene in the

steering.

If a fault persists, drive to a qualified workshop

soon and have it rectified.

Active front assist

Cancelling the emergency assist

Introduction

Some of the possible ways to cancel the emer-

gency assist are:

Within certain limits imposed by the system, the

active front assist can identify if there is a danger

of collision and initiate appropriate safety meas-

ures to avoid a collision occurring. You will be

alerted on the instrument cluster display when

the active front assist intervenes.

– Moving the steering wheel, or

– Applying the brake pedal, or

– Pressing the accelerator firmly.

When the vehicle is stationary, the emergency

assist can be cancelled by moving out of trans-

mission position P or by releasing the parking

brake ðpage 108.

In certain situations, functions of the proactive

occupant protection system may also be trig-

gered.



If you cancel the intervention by the system,

will light up and a corresponding message will

appear.

WARNING

Please note the safety precautions and system

limits of the supporting systems, sensors and

cameras ðpage 130 to ðpage 132.

Switching on/off

You can switch the emergency assist on/off in the

Driver assist menu  ðpage 134.



If you switch the system off,

will light up and

a corresponding message will appear.

161

Systems for braking and taking evasive action

– Up to approx. 85 km/h: road users crossing

Functions of the active front assist

the road (e.g. pedestrians or cyclists).

3

You are driving towards an object in front of

you in your lane

The system may intervene when objects are

detected in your lane from speeds of approx.

5 km/h.

Depending on the speed of your vehicle

specified below, the system can detect and

react to the following objects:

– Up to approx. 85 km/h: stationary or mov-

ing pedestrians and oncoming cyclists or

vehicles.

– Up to approx. 120 km/h: stationary or mov-

ing cyclists.

– Up to approx. 250 km/h: stationary

vehicles and vehicles that are moving slow-

ly or braking heavily.

4

You must take evasive action to avoid an ob-

ject in your lane

Fig. 101 Functions of the active front assist (examples)

The assistance when avoiding a collision is ac-

tivated at speeds above approx. 30 km/h.

Depending on the speed of your vehicle

specified below, the system can detect and

assist you in avoiding the following objects:

Within certain limits imposed by the system, the

active front assist can initiate appropriate safety

measures to avoid a collision occurring in the fol-

lowing situations:

– Up to approx. 85 km/h: stationary or pe-

destrians/cyclists moving along the road.

– Up to approx. 150 km/h: stationary

vehicles and vehicles that are moving slow-

ly or braking heavily.

1

You are turning off and an object comes to-

wards you or crosses the road into which

you are turning

The system may intervene when turning off

as soon as the vehicle is moving.

If you are travelling at a speed of up to ap-

prox. 25 km/h, the system can detect and re-

act to the following objects:

WARNING

Please note the safety precautions and system

limits of the supporting systems, sensors and

cameras ðpage 130 to ðpage 132.

– Oncoming vehicles in the opposite lane.

– Road users crossing the road (e.g. pedes-

trians or cyclists).

System limits of the active front assist

2

An object crosses your vehicle’s path

The system may intervene when crossing ob-

jects are detected as soon as the vehicle is

moving.

The active front assist may be restricted or un-

available in situations such as the following:

– In tight corners or during dynamic manoeuvres.

– If the vehicle is in towing a trailer.

Depending on the speed of your vehicle

specified below, the system can detect and

react to the following objects:

– If the vehicle is reversing.

– If the brake lights are faulty.

– Up to approx. 65 km/h: vehicles crossing

the road.

– If there is a fault in the airbag control unit.

– If the sensors or the front camera are faulty.



162

Systems for braking and taking evasive action

– If there is a fault in the ESC or if the ESC is re-

stricted/deactivated.

rear cross-traffic assist has temporarily been de-

activated.

– If the vehicle towing another vehicle

Visual warnings

WARNING

Depending on the measure initiated and the haz-

ard situation, a symbol and a corresponding driv-

er messages may appear in the instrument clus-

ter.

– Please note the safety precautions and sys-

tem limits of the supporting systems, sen-

sors and cameras ðpage 130 to

ðpage 132.



The

symbol appears if one of the following

– The protection provided by the active front

assist is still subject to the prevailing physi-

cal limits. It is a driver assist function and

cannot prevent a collision in every situation.

The driver must always intervene personally.

It is always the driver's responsibility to

brake in good time. Do not let the extra

safety provided tempt you into taking any

risks when driving – risk of accident!

– Among other things, the active front assist

does not react to animals and objects such

as walls, poles, fences, railbound vehicles

and waste containers.

measures is initiated:

– Collision warning

– Brake jolt

– Automatic brake pressure increase

– Automatic braking

The  symbol appears if the swerve support

function is active.

Cross-traffic information

If road users crossing the vehicle’s path are de-



tected, the

symbol appears on the instrument

cluster and (if fitted) on the head-up display. If

the parking aid is activated, the symbol also ap-

pears on the centre display.

– Loose objects can be flung around in the

passenger compartment in the event of sud-

den driving or braking manoeuvres – risk of

accident! Stow objects away safely while the

vehicle is moving.

Collision warning

If a potential collision risk is detected, you will be

informed of this risk by a visual and acoustic

warning.

– If the system intervenes, there is a risk of in-

jury, especially if occupants are not sitting in

the correct position or not wearing a seat

belt. Ensure that all occupants have their

seat belts fastened correctly and are seated

properly as described in this manual

ðpage 63.

Brake jolt

In the event of an impending collision, an acute

warning may also be given in the form of a brake

jolt. You may need to take evasive action or brake

hard to avoid a collision.

– If the brakes are applied automatically when

towing a trailer, the behaviour of the trailer

under braking may be different than usual.

The reaction of the active front assist may

be restricted or the system may be unavaila-

ble if the vehicle is towing a heavy load.

Automatic brake pressure increase

If you do not brake hard enough in the event of

an impending collision, the brake pressure may

be increased automatically in certain situations.

Automatic braking

Overview of measures to avoid a collision

The system can, subject to general system limits,

apply the brakes heavily in order to avoid a colli-

sion or reduce the impact of a potential collision.

If the system brakes the vehicle to a stop, the ve-

hicle will then be held at a standstill. If the vehi-

cle cannot be held at a standstill, a driver

Only some of the measures may be activated de-

pending on the hazard situation detected. Some

functions may be modified or skipped.

The active front assist functions are unavailable if

 is displayed on the centre display, e.g. if the



163

Systems for braking and taking evasive action

message will appear and you must take control

of the vehicle.

– If the system is triggered at an undesirable

time on several occasions.

Swerve support

WARNING

If you take action to avoid an obstacle following

an acute warning, the swerve support will assist

you when you are steering the vehicle. As long as

you are steering actively, the function brakes in-

dividual wheels and applies a small steering im-

pulse to stabilise and, if necessary, correct the

evasive manoeuvre. The driver is responsible for

steering for the entire duration of the evasive

manoeuvre.

Undesired system interventions may result in

an accident. Do not use the system in situa-

tions where undesired system interventions

may occur.

Driver messages about the active front

assist



When the vehicle is started, the

indicator

lamp lights up to indicate that the system is only

available with restrictions. The indicator lamp

will go out as soon as the system is available

without restrictions.

Using the active front assist

Overriding the active front assist

You can cancel collision avoidance measures initi-

ated by the system by pressing the accelerator

firmly or steering.



If

is displayed in the event of a fault, the ac-

tive front assist and the distance warning are un-

available or restricted.

Adjusting the active front assist settings

A driver message indicating the cause and possi-

ble remedy may appear for some of the displays.

To view further information, open the notifica-

tion centre on the centre display. The weather

conditions may not be good enough, or a sensor

may be obstructed. Clean the area in front of the

sensors ðpage 133.

You can switch the active front assist and some of

the measures for avoiding a collision on/off and

adjust the settings in the Driver assist menu

ðpage 134.

If the system is switched off, it will be automati-

cally activated again the next time you switch the

vehicle on.

If the message is still displayed when you switch

the vehicle back on, drive to a qualified workshop

soon and have the fault rectified.

Dealing with undesired system

interventions

Rear turn assist

Undesired system interventions may occur in par-

ticular situations.

Using the rear turn assist

Audi recommends switching off the active front

assist in the following situations:

– If you are using the vehicle away from public

roads.

– If the vehicle is being towed away or loaded on-

to a transporter or similar.

– After an impact on components around the ra-

dar sensors, e.g. if the front of the vehicle has

been damaged in an accident.

Fig. 102 Driving situation and warning signal on exterior

mirror

– If the radar sensors or the camera are faulty or

the windscreen is damaged in the area around

the camera’s field of vision.



164

Systems for braking and taking evasive action

Introduction

Switching the rear turn assist on/off

The rear turn assist monitors the blind spot and

the traffic behind your vehicle in the neighbour-

ing lanes and helps you when turning off. If the

system detects an approaching object which it

judges to be critical, the warning signal 1 lights

up on the exterior mirror on the corresponding

side of the vehicle.

You can switch the rear turn assist on/off in the

Driver assist menu ðpage 134.

System limits

The rear turn assist is active at speeds of up to

approx. 60 km/h when a turn signal is on. The

system is not available at very low speeds.

The system uses the data from the radar sensors

at the corners of the vehicle ðpage 133, Fig. 80,

ðpage 133, Fig. 81. The sensors are designed

for normal lane widths and monitor the lanes im-

mediately to the left and right of your vehicle. In

certain situations it is possible that the system

may react to vehicles in your own lane or two

lanes away, or to objects at the edge of the lane.

The warning signal then lights up even though

there are no vehicles in the critical area. Such sit-

uations may include:

Driving situations

– Your vehicle is being overtaken by another vehi-

cle. The faster this vehicle approaches from be-

hind, the earlier the warning signal will appear

on the exterior mirror.

– There are vehicles travelling at a similar speed

in the next lane. The warning signal will appear

on the exterior mirror by the time the detected

object is in your blind spot.

– You are overtaking another vehicle slowly. If the

speed differential between the two vehicles is

not greater than approx. 15 km/h, the warning

signal will appear on the exterior mirror.

– When driving at the edge of your own lane

– When driving in narrow lanes

– When driving through a corner

Information mode

– If there are high barriers next to the lane

– When driving through roadworks

When you switch a turn signal on, the system in-

forms you of objects which it judges to be critical

by activating the warning signal 1 on the corre-

sponding exterior mirror.

Information on the rear turn assist

– The warning signals on the exterior mirrors

may not be properly visible if tinted foil is af-

fixed to the side windows on the driver's or pas-

senger's side.

The intensity of the warning signal in this infor-

mation mode is kept relatively low, so that it

does not distract you while you are looking at the

road in front.

– The systems are not available in towing mode.

If the towing bracket is not factory-fitted the

systems may not be switched off automatically.

The functions must not be used when towing a

trailer.

Warning mode

As soon as you activate a turn signal, the system

warns you of objects which it judges to be critical

and with which the collision risk is increasing by

flashing the warning signal on the corresponding

exterior mirror. A warning tone will sound if the

situation becomes more critical. The system may

also jolt the brakes as an additional warning.

– The area covered by the sensors ðpage 136,

Fig. 85 is an example and does not represent

the range of the sensors to scale.

WARNING

– Please note the safety precautions and sys-

tem limits of the supporting systems, sen-

sors and cameras ðpage 130 to

Instrument cluster display

In addition to the warning signal on the exterior

mirror, a graphic for the rear turn assist (infor-

mation and warning level) is shown in the instru-

ment cluster. The symbol is shown in grey at the

information level and red at the warning level.

ðpage 132.

– The warning signal may not light up in time

or may not light up at all if other vehicles



165

Systems for braking and taking evasive action

are approaching very quickly, or if you are

overtaking other vehicles quickly.

– The rear turn assist does not react to peo-

ple. Always monitor the road and the area

around the vehicle; do not rely on the sen-

sors alone.

Driver messages about the rear turn assist



If

or

is displayed in the event of a fault,

the rear turn assist functions are unavailable or

restricted.

A driver message indicating the cause and possi-

ble remedy may appear for some of the displays.

To view further information, open the notifica-

tion centre on the centre display. The weather

conditions may not be good enough, or a sensor

may be obstructed. Clean the area in front of the

sensors ðpage 133. Try switching on the system

later or after the vehicle is next switched on.

If a fault persists, drive to a qualified workshop

soon and have it rectified.

166

Systems for braking and taking evasive action -> for Your Audi RS6 4 Door Fourth Generation (2019-2025)

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