Get Driving -> Brakes Guide for Audi RS6 4 Door Fourth Generation (2019-2025)

Driving

Information on switching off/starting the

engine

This message appears if certain conditions have

not been met during the stop phase and the

start/stop system cannot start the engine again

– Keep your foot on the brake pedal during a stop

phase to prevent the vehicle from moving.

START ENGINE STOP

automatically. The

button

must be used to start the engine.

– If you press the

button

during a stop phase, the ignition will be switch-

ed off.

Brakes

– If you briefly leave the vehicle during a stop

phase and then get back in, you will need to

close the driver's door and fasten your seat belt

for the engine to start again.

Introduction

You can use the brake pedal to slow the vehicle

down. The braking effect of the brake pedal may

be affected by the automatic recuperation if this

is switched on.

– You can control whether or not the engine is

switched off by varying the amount of pressure

on the brake pedal. For instance, if you brake

gently in stop-and-go traffic or before turning

off at a junction, the engine will remain on

while the vehicle is at a standstill. As soon as

you press the brake pedal harder, the engine

will be switched off.

Noises

Brake noise may develop in certain situations, de-

pending on the speed, braking force and ambient

conditions (such as temperature and relative hu-

midity).

The brake system performs system tests at regu-

lar intervals while the vehicle is stationary and

shortly after the vehicle starts moving. Noises

may occur temporarily and haptic feedback may

be felt on the brake pedal.

Information on automatic starting/

stopping of the engine

Before and during each stop phase, the system

checks that certain conditions have been met and

decides whether to switch off the engine and for

how long. For instance, the engine is not switch-

ed off if the power consumption is high. Whether

or not the engine is started/stopped automatical-

ly depends on factors such as the following:

Braking effect

To ensure an optimum braking effect, the brake

pads are applied to the brake discs briefly at high

speeds when the windscreen wipers are on.

If the brake system is wet, e.g. after driving in

heavy rain, the braking effect may be delayed.

Further causes of a temporary increase in brake

response time include:

– Ambient conditions (downhill/uphill gradient,

altitude and temperature)

– Battery (charge level, temperature and power

consumption)

– Air conditioner

– Wet conditions

– Engine temperature

– Low temperatures, ice and snow

– Salted roads

– Driver assist systems

– Driving style

– Dirty brake pads

Corrosion

Driver messages about the start/stop

system

Corrosion can form on the brake discs if the car is

used infrequently, or if you only drive low mile-

ages. In this case, you can clean the brake discs

by braking firmly a few times from a moderately

The following driver messages may appear, de-

pending on the equipment installed in your vehi-

cle:

high speed ð



Drive system: please start vehicle manually

106

Driving

Brake pads

CAUTION

New brake pads do not give full braking effect for

the first 400 km, they must first be “bedded in”.

However, you can compensate for the slightly re-

duced braking effect by applying more pressure

on the brake pedal. Avoid placing a heavy load on

the brakes during the running-in period.

– Never let the brakes “drag” by leaving your

foot on the pedal when you do not really in-

tend to brake. This can cause the brakes to

overheat, resulting in longer stopping dis-

tances and greater wear.

– Please observe the important safety warn-

ings on driving on gradients ðpage 110.

This is especially important when towing a

trailer or caravan.

The rate of wear on the brake pads depends a

great deal on how you drive and the conditions in

which the vehicle is operated. For example, the

rate of wear will increase if the vehicle is used

frequently in city traffic, for short distances, or

for hard driving with abrupt starts and stops.

Driver messages about the brake system

The following driver messages may appear, de-

pending on the equipment installed in your vehi-

cle:

Multicollision brake assist system

The multicollision brake assist system can help to

reduce the risk of skidding and further collisions

during an accident. If the airbag control unit de-

tects that a collision has taken place, the ESC sys-

tem applies the brakes.

 Brakes: fault. Safely stop vehicle

A malfunction has occurred in the brake system.

If  and  also light up, this means that the

ABS, ESC and brake force distribution systems

have failed. You need to apply much more force

to operate the brakes if the brake servo fails.

The vehicle will not be braked automatically if:

– you apply the accelerator, or

– the brake pressure applied by pressing the

brake pedal is higher than the brake pressure

initiated by the system, or

Do not drive on. Seek professional assistance.

Please refer to the additional safety information

– the ESC, the brake system or the vehicle's elec-

trical system are not fully functional.

 Brakes: function restricted. You can drive on

carefully. Please contact workshop

WARNING

A malfunction has occurred in the brake system.

There is a risk that the braking effect may be de-

layed. Drive to a qualified workshop without de-

lay and have the fault rectified.

– When applying the brakes to clean off de-

posits on the pads and discs, select a clear,

dry road. Be sure not to endanger other road

users; do not risk an accident.

 Brake pads: wear limit reached. You can con-

– All brake repairs must be carried out by a

qualified workshop working to the specifica-

tions of the Audi factory – risk of injury! Im-

proper repairs can also impair the function

of the system.

tinue driving. Please contact workshop

The brake pads are worn. Drive to a qualified

workshop soon and have the brake pads checked.

 Brake servo: restricted. You can continue

– Never let the vehicle coast with the power

unit switched off (this can cause accidents).

– If you wish to equip the vehicle with accesso-

ries such as a front spoiler or wheel covers,

it is important that the flow of air to the

brakes is not obstructed; otherwise the

brakes can overheat – risk of accident!

driving. Please contact workshop

There is a malfunction in the brake servo. The

brake servo remains available with reduced ca-

pacity. The brakes may perform differently than

usual. Drive to a qualified workshop without de-

lay and have the fault rectified.



107

Driving

Brake servo will be deactivated shortly. See

owner's manual

for concern. Noises may also occur when the ve-

hicle is stationary due to automatic test cycles.

The brake servo remains active for a short time

after the vehicle is switched off. Secure the vehi-

cle so that it cannot roll away ðpage 99.

Applying the parking brake via the button

Press the  button. The parking brake will be

applied. Transmission position P (parking lock)

will be selected.

Brake cleaning function active

The recuperation function is blocked in certain

weather conditions or if parts of the brake sys-

tem have recently been replaced to ensure that

the full braking effect is provided.

When  appears, the parking brake is keeping

the vehicle stationary. You can now take your foot

off the brake pedal.

If the red warning lamp flashes, insufficient brak-

ing force has been applied. Take additional meas-

ures to secure the vehicle so that it cannot roll

away when parked ðpage 99.

 Brakes: hot. Please adapt driving style

The brakes have been used intensively. This may

be because you left your foot on the brake pedal

or adopted a dynamic driving style, for example.

You can continue driving. Adapt your driving style

to reduce the load on the brakes.

Applying/releasing the parking brake via the

MMI

You can apply and release the parking brake man-

ually, independently of transmission position P

(parking lock).

 Brakes: risk of overheating. Please select D

and use recuperation

►

The brakes have been used intensively while driv-

ing downhill for an extended period. Follow the

instructions in the driver message to use the re-

cuperation function and take the load off the

brakes.

Select:  > Car > More > Electromechanical

parking brake.

To avoid noises when driving off, do not release

the parking brake manually when the vehicle is

parked on a hill or is heavily loaded.

WARNING

Putting the vehicle in neutral (to allow it to

roll)

If the ABS, ESC and brake force distribution

systems fail, input from the functions that

stabilise the vehicle is no longer available.

This could cause the vehicle to skid sideways.

Do not drive on. Seek professional assistance.

To prevent the parking brake from being applied

automatically (e.g. in a tunnel car wash), proceed

as follows:

Important: The vehicle must be stationary and

must be switched on. Press the brake pedal and

select transmission position N.

Electromechanical

parking brake

►

Confirm the message on the MMI, or

►

Select:  > Car > More > Ability to roll > Make

Operating the parking brake

vehicle able to roll after exit.

When you leave the vehicle, it will still be able

to roll.

The  button is located in the centre console

above the selector lever ðpage 99, Fig. 71.

►

To prevent the vehicle from rolling away again,

press the  button.

To activate/deactivate the message display

The electromechanical parking brake is intended

to prevent the vehicle from rolling away acciden-

tally.

►

when neutral (N) is selected, select:  > Vehi-

cle > More > Ability to roll > Show pop-up in

position N.

Any noises heard when the parking brake is ap-

plied or released are quite normal and no cause



108

Driving -> Brakes for Your Audi RS6 4 Door Fourth Generation (2019-2025)

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