Get Speed assist systems -> Adaptive cruise control Guide for Audi RS6 4 Door Fourth Generation (2019-2025)

Speed assist systems

►

To reactivate the preset speed, pull the control

lever towards you to position 2 .

Driver messages about the cruise control

systems

The stored preset speed or the speed limit cur-

rently detected will be reactivated automatically

as soon as the road speed drops below the preset

speed.



If  or /

is displayed in the event of a

fault, the corresponding cruise control systems

are unavailable or restricted.

A driver message indicating the cause and possi-

ble remedy may appear for some of the displays.

To display the driver messages again, open the

notification 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

systems later or after the vehicle is next switched

on.

Interrupting the regulating function

temporarily

Important: The system must be switched on and

the stored preset speed must be activated.

►

Push the control lever to position 3 (click stop

not engaged).

►

Applies to vehicles with cruise control system:

Press the brake pedal while the vehicle is mov-

ing.

If a fault persists, drive to a qualified workshop

soon and have it rectified.

If you deactivate the system briefly, the preset

speed will remain stored.

The following driver messages may appear, de-

pending on the equipment installed in your vehi-

cle:

WARNING



Speed limiter: function to use speed limit

– Please note the safety precautions and sys-

tem limits of the supporting systems, sen-

sors and cameras ðpage 130 to

ðpage 132.

currently unavailable. See owner's manual

The predictive speed limiter function is tempora-

rily unavailable. This is the case, for example, if

the speed limit is below the minimum speed

which can be set or if the function is not available

in the country where you are currently driving.

The speed will be limited to the speed which you

have set manually.

– Applies to vehicles with cruise control sys-

SET

tem: If you press the

button 1 at a

speed of less than 20 km/h, the vehicle will

automatically apply the minimum speed

setting. The vehicle will accelerate to this

speed.

– The speed regulation systems may be

switched off automatically if a fault occurs

in the brake system (e.g. if the brakes over-

heat) while they are activated.

Adaptive cruise control

Introduction

The adaptive cruise control assists you while

driving by controlling the vehicle’s speed within

certain limits imposed by the system. If a vehicle

is detected in front, the adaptive cruise control

can brake and accelerate the vehicle and main-

tain the set distance to the vehicle in front as

consistently as possible within certain limits im-

posed by the system.

– Only accelerate quickly or use the kick-down

feature when the visibility and weather con-

ditions are suitable, and when the road and

traffic conditions allow you do so safely.

– Applies to vehicles with cruise control sys-

tem: Make sure you do not unintentionally

rest your foot on the accelerator, as this

could override the regulating function. The

system might not apply the brakes and

therefore not regulate the vehicle’s speed.

In congested traffic and traffic jams, the system

can brake down to a standstill and move off again

automatically under certain conditions.



150

Speed assist systems

On vehicles with adaptive cruise assist which are

fitted with certain equipment, the predictive

cruise control can adjust the cruising speed in re-

sponse to events ðpage 157.

you can easily steer to avoid the stationary vehi-

cle.

– The system cannot react to stationary obsta-

cles, such as the end of a traffic jam, particular-

ly at high speeds.

On vehicles with adaptive cruise assist which are

fitted with certain equipment, the lane guidance

function can provide assistance ðpage 144.

– The ability of the system to detect vehicles in

front is limited when they are too close, travel-

ling out of line, or moving into your lane.

– Objects that are not clearly discernible, e.g. a

motorcycle or cyclist travelling in front of you

and vehicles with high ground clearance or a

protruding load, are often identified late or are

not detected at all.

WARNING

Please note the safety precautions and system

limits of the supporting systems, sensors and

cameras ðpage 130 to ðpage 132.

– The system does not react to pedestrians, ani-

mals or crossing or oncoming traffic.

– The system is switched off/cannot be switched

on when the maximum possible road gradient

for safe operation has been exceeded.

– The regulating function of the adaptive cruise

control is only available when the ESC and trac-

tion control system have been switched on and

are fully functional. Switch the systems on be-

forehand if necessary.

System limits of the adaptive cruise control

WARNING

Fig. 95 Example: Driving into a bend

Please note the safety precautions and system

limits of the supporting systems, sensors and

cameras ðpage 130 to ðpage 132.

In some driving situations, the adaptive cruise

control functions are restricted and you may need

to intervene by, for example, braking the vehicle

yourself:

Overview of displays for the adaptive cruise

control

– When driving into a bend ðFig. 95 and driving

out of a bend, the system may react to a vehicle

travelling in the next lane and therefore brake

the vehicle. You can override this by accelerat-

ing briefly.

– The system operates on the basis of informa-

tion gathered from various sensors and cam-

eras. Vehicles cannot be detected until they are

within range and inside the sensors’ field of vi-

sion.

– In tight bends, a vehicle driving ahead which

has already been detected by the adaptive

cruise control may no longer be recognised, and

the system may accelerate unexpectedly as a

result.

Fig. 96 Instrument cluster: Overview of displays

The driving situation and the settings are dis-

played on the instrument cluster and the head-

up display. The displays depend on the country

and the vehicle’s equipment.

– The system will not react to stationary vehicles

in the same lane if the system assumes that



151

Speed assist systems

Overview of display with surroundings

shown

1

Display for active distance regulating func-

tion

2

A vehicle in front has been detected. The

green marking points towards the vehicle

based on which the system is currently regu-

lating.

3

Vehicle based on which system is regulating

(highlighted)

Fig. 98 Control lever: Setting a new speed

4

5

Own vehicle

0

1

2

3

If the control lever is engaged in this posi-

tion, the system is switched off.



– Display for adaptive cruise control

– The adaptive cruise control is switched

If the control lever is engaged in this posi-

tion, the system is switched on.

on but not active.



5

6

– You must intervene. The system alone is

SET

Set your current speed as the cruising

not able to brake the vehicle sufficiently

ðpage 154.

speed and activate the cruise control.

LIM

Switch between the speed limiter and

Set speed

the adaptive cruise control.

Switching on

WARNING

►

Please note the safety precautions and system

limits of the supporting systems, sensors and

cameras ðpage 130 to ðpage 132.

To switch the adaptive cruise control on, pull

the lever towards you to position

gages.

1

until it en-

Setting the speed and activating the

regulating function

Using the adaptive cruise control

When you switch on the system, you can set your

current speed as the cruising speed and activate

the regulating function:

SET

►

Press the

button 2 . The set speed will be

shown 6 ðpage 151, Fig. 96.

►

If the vehicle is stationary, you should also keep

the brake pedal depressed to store the speed.

If the system has detected a vehicle in front, it

will regulate your vehicle’s speed to maintain a

constant distance to the vehicle in front, and will

accelerate and brake the vehicle automatically

within the limits imposed by the system.

Fig. 97 Control lever: Operating the adaptive cruise con-

trol

If the system has not detected a vehicle in front,

the set speed will be maintained as consistently

as possible.

You can set any speed between 20 km/h and the

1)

maximum of the available speed range . If you



1)

Depends on country and engine type

152

Speed assist systems

store the current speed while travelling at a

speed which is below the minimum speed which

can actually be set, the minimum speed will be

set as the cruising speed. If no vehicles have been

detected in front, the vehicle will automatically

accelerate up to this speed.

Applies to vehicles with predictive cruise control:

The cruising speed can be adapted in anticipation

of events ðpage 157.

Pre-selecting a speed

You can pre-select the speed, even when the

adaptive cruise control is inactive, by briefly

pushing the lever in the appropriate direction + /

– . To activate the pre-selected speed, pull the

lever towards you in the direction of the arrow

.

Interrupting the regulating function

temporarily

The regulating function can be interrupted at any

time.

►

While driving or when stationary: Push the lev-

er away from you in the direction of the arrow

Switching off

You can switch off the adaptive cruise control if

you will not be using it for an extended period of

time.

, or

While driving: Press the brake pedal.

►



is displayed and the graphic  in front of

►

Push the lever away from you to position 0 un-

the vehicle 1 goes out ðpage 151, Fig. 96.

til it engages.

Temporarily overriding the preset speed



The symbol

will disappear.

►

To override the regulating function temporarily

Further information

in order to accelerate, press the accelerator.

If the speed limiter is selected after the vehicle is

switched on, the adaptive cruise control must



The distance regulating function is not active.

is displayed and the graphic  in front of the

vehicle 1 goes out ðpage 151, Fig. 96.

LIM

have been selected beforehand. Press the

button 3 to select the adaptive cruise control.

Resuming the regulating function

The speed setting is deleted for safety reasons

when you switch off the vehicle or the adaptive

cruise control.

Once a speed has been set, it can be called up

again after the regulating function has been

paused.

WARNING

►

To resume the regulating function, pull the lev-

– Please note the safety precautions and sys-

tem limits of the supporting systems, sen-

sors and cameras ðpage 130 to

er towards you in the direction of the arrow

.

If the vehicle is stationary, you should also keep

►

ðpage 132.

the brake pedal depressed to resume the regu-

lating function.

– The adaptive cruise control serves as a driver

assist system. However, the driver still

maintains full responsibility for the opera-

tion of the vehicle. This applies in particular

to braking, steering, driving off and control-

ling the vehicle’s speed and distance to oth-

er vehicles.

Changing the set speed

►

To change the set speed in small steps, briefly

push the lever one level upwards or downwards

towards + / – .

To change the set speed in larger steps, briefly

push the lever two levels upwards or down-

wards towards + / – .

To change the set speed continuously, push the

lever one or two levels upwards or downwards

towards + / – and hold the lever until the de-

sired speed is set.

– Only switch on the adaptive cruise control in

situations where it is safe to do so. Always

adjust your driving style to suit the visibility,

weather, road and traffic conditions.

– Make sure you do not unintentionally rest

your foot on the accelerator, as this could



153

Speed assist systems

limits imposed by the system. It then maintains a

constant set distance. If the vehicle in front ac-

celerates, the adaptive cruise control will also ac-

celerate up to the target speed you have speci-

fied.

override the regulating function. The system

might not apply the brakes and therefore

not regulate the vehicle’s speed.

– When you take a turn-off or drive along a

motorway exit lane, please temporarily

switch off the adaptive cruise control. This is

to ensure that the vehicle does not acceler-

ate to the cruising speed in such situations.

►

To display the current distance setting, briefly

press the rocker switch.

►

To change the set distance by one level, briefly

press the rocker switch towards + / – again.

Take over braking prompt

When setting the distance, the driver is responsi-

ble for adhering to the locally applicable laws

and regulations.

If the system’s braking performance is not suffi-

cient, a message will appear instructing you to



take over.

will also light up. Apply the brakes

Setting the distance changes the gap between

your vehicle and the one ahead. The newly set

distance will be displayed briefly. The higher the

speed, the higher the distance. The following dis-

tances can be set:

to maintain a sufficient distance to the vehicle in

front.

The take over prompt may be accompanied by

further acoustic and visual warning signals, de-

pending on the situation.

Sym- Time-based dis-

Distance at

100 km/h

bol

tance

WARNING

– Please note the safety precautions and sys-

tem limits of the supporting systems, sen-

sors and cameras ðpage 130 to

approx. 1 second

approx. 28 metres

approx. 36 metres



approx. 1.3 sec-

onds





ðpage 132.

– The adaptive cruise control serves as a driver

assist system. However, the driver still

maintains full responsibility for the opera-

tion of the vehicle. This applies in particular

to braking and maintaining the distance to

other vehicles.

approx. 1.8 sec-

onds (generally

recommended)

approx. 50 metres

approx. 67 metres

approx. 2.4 sec-

onds





approx. 3.6 sec-

onds

approx. 100 me-

tres

Setting the distance regulating function

The actual distance maintained by the adaptive

cruise control may be longer or shorter, depend-

ing on the traffic situation and the driving style

of the driver in front.

Deactivating/activating the distance

regulating function

Depending on the vehicle’s equipment, it may al-

so be possible to use the system without the dis-

tance regulating function. In this case, the sys-

tem functions in the same way as the regular

cruise control system.

Fig. 99 Control lever: Setting the distance

When you draw closer to a vehicle in front, the

adaptive cruise control matches your speed to

that vehicle by applying the brakes within the

– To deactivate the distance regulating function,

press and hold the rocker switch towards

–



154

Speed assist systems

until the distance regulating function is switch-

ed off and the  symbol lights up.

– To reactivate the distance regulating function,

press the rocker switch in either direction ( + /

– ).

If your vehicle has been stopped for too long, it

will no longer move off automatically for safety

reasons. A driver message will inform you that

the vehicle is no longer ready to drive off and the

 symbol in front of the vehicle 1 will go out

ðpage 151, Fig. 96.

Driving characteristics during assisted

driving

►

You can extend or re-activate the period in

which the vehicle is ready to drive off automati-

cally for a short time by pulling the lever to-

wards you briefly in the direction of the arrow

 ðpage 152, Fig. 97.

To set the vehicle in motion again immediately,

tap the accelerator with your foot.

The driving characteristics of the adaptive cruise

control and the haptic feedback of the lane guid-

ance vary depending on the vehicle’s equipment

and depend on:

►

– The set distance

– The selected Audi drive select mode

– The individual settings related to the driving

characteristics in the Driver assist  menu

ðpage 134

Safe start monitor

The vehicle may start moving even if it detects

certain obstacles while doing so ð

. Various

feedback will draw your attention to the danger if

an obstacle is detected.

Store last distance

In the Driver assist  menu, you can set

ðpage 134 whether you require the most recent-

ly set distance to be stored. If the distance is not

stored, the distance  is automatically selected

as the default setting every time the vehicle is

switched on.

The  symbol will be shown in red in front of

the vehicle 1 ðpage 151, Fig. 96 and the driver

message Warning: obstacle! will appear. In addi-

tion, a tone will sound. Your vehicle will then set

off more slowly. This can happen in certain situa-

tions, even if there appears to be no obstacle.

WARNING

►

If necessary, press the brake pedal to slow

Please note the safety precautions and system

limits of the supporting systems, sensors and

cameras ðpage 130 to ðpage 132.

down.

Further information

For safety reasons, the adaptive cruise control is

activated only if

Driving in congested traffic

– the driver's seat belt is fastened,

Stopping with the adaptive cruise control

– all the doors and the bonnet are closed,

– the vehicle has not been stopped for too long.

The adaptive cruise control also helps you when

driving in congested traffic. If a vehicle in front

stops, the system applies the brakes (within the

limits imposed by the system) and holds the ve-

hicle at a standstill.

WARNING

– Please note the safety precautions and sys-

tem limits of the supporting systems, sen-

sors and cameras ðpage 130 to

1)

Driving off with the adaptive cruise control

ðpage 132.

When a message indicating that the vehicle is

ready to drive off is shown on the display and the

vehicle in front drives off, your vehicle will start

– When the message indicating that the vehi-

cle is ready to drive off is shown, your ve-

hicle will start moving even if there is an ob-

stacle between your vehicle and the vehicle

1)

moving ð

. The remaining time may be shown



by the  symbol.

1)

Not available on vehicles for some markets.

155

Speed assist systems

automatically if you are driving behind another

vehicle and activate the turn signal to overtake.

in front. Always make sure that there are no

obstacles between your vehicle and the vehi-

cle in front – risk of accident!

1)

Overtake prevention

The graphic 4 of a vehicle detected in the next

lane appears when the adaptive cruise control ad-

Additional functions of the adaptive cruise

control

justs the speed to prevent you from overtaking

1)

on the right/left

.

WARNING

– Please note the safety precautions and sys-

tem limits of the supporting systems, sen-

sors and cameras ðpage 130 to

ðpage 132.

– The additional functions are designed to as-

sist the driver. As the driver, when you use

the functions you still maintain full respon-

sibility for the operation of the vehicle. This

applies in particular to changing lane, brak-

ing, controlling the vehicle’s speed and

maintaining the distance to other vehicles.

Fig. 100 Instrument cluster: Overtake prevention

Important: The regulating function of the adap-

tive cruise control must be activated for all addi-

tional functions that depend on the vehicle’s

equipment.

Driver messages about the adaptive cruise

control

Overriding the cruise control or distance

regulating function

►

To briefly override the adaptive cruise control,



If

or

is displayed in the event of a fault,

pull and hold the lever ðpage 152, Fig. 97 to-

wards you in the direction of the arrow .

the adaptive cruise control functions are unavail-

able or restricted.

If a vehicle is detected in front: The distance is re-

duced to a closer distance than the one set for a

brief period within the limits imposed by the sys-

tem. This makes it easier to merge into another

lane due to your lane ending, for example.

A driver message indicating the cause and possi-

ble remedy may appear for some of the displays.

To display the driver messages again, open the

notification 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 there is no vehicle in front: The vehicle acceler-

ates faster and the cruising speed is overridden.

The current set speed may also be exceeded. The

distance regulating function remains active.

If a fault persists, drive to a qualified workshop

soon and have it rectified.

Response when turn signals are on (to

overtake)

If you operate the turn signal and the adaptive

cruise control concludes that you are intending to

perform an overtaking manoeuvre, the system

can accelerate before you change lane and reduce

the distance to the vehicle ahead. This happens

Predictive cruise control

Introduction

The predictive cruise control adapts the cruising

speed of the adaptive cruise control to



1)

Depending on country

156

Speed assist systems -> Adaptive cruise control for Your Audi RS6 4 Door Fourth Generation (2019-2025)

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