Audi / A8 D4 (4H) / 03 - Brake electronics [EV_ESPPremi 005025] / Bleeding of the system

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Select a vehicle make or a common group such as Service Intervals, Engines, Transmissions, Immobilizers and Independent Heaters.

Model

Control unit Select the desired control unit as accurately as possible. The UDS identifier EV_xyz can be found in the VCDS after connecting to the control unit and then in the Extended Identification.

Select the desired control unit as accurately as possible. The UDS identifier EV_xyz can be found in the VCDS after connecting to the control unit and then in the Extended Identification.

Diagnostic operation Select the desired diagnostic procedure.

Diagnostic procedure

This operation was considered useful 4x.

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Conditions:
- do preliminary deaeration in a standard manner
- Connect the bleeding jig VASXXXX
- connect battery charger

connect with the control unit XX - Brake electronics

Deaeration jig -> OFF

XX - Basic settings

select item in drop-down menu: IDEXXXXX Bleeding of the brakes

In the parameter menu, select: X. Flushing cycle

Start

X x fully depress - brake pedal
release - brake pedal
open LF deaeration bolt
Deaeration jig -> ON

Stop

XX - Basic settings

select item in drop-down menu: IDEXXXXX Bleeding of the brakes

In the parameter menu, select: Bleeding of the brakes - front axle

Start

X x fully depress - brake pedal
release - brake pedal
fully close - LF deaeration bolt
open RF deaeration bolt

Stop

XX - Basic settings

select item in drop-down menu: IDEXXXXX Bleeding of the brakes

In the parameter menu, select: Bleeding of the brakes - rear axle

Start

X x fully depress - brake pedal
release - brake pedal
fully close - RF deaeration bolt
Deaeration jig > OFF

Stop

XX - Basic settings

select item in drop-down menu: IDEXXXXX Bleeding of the brakes

In the parameter menu, select: X. Flushing cycle

Start

X x fully depress - brake pedal
release - brake pedal
open - RR deaeration bolt
Deaeration jig > ON

Stop

XX - Basic settings

select item in drop-down menu: IDEXXXXX Bleeding of the brakes

In the parameter menu, select: Bleeding of the brakes - front axle

Start

X x fully depress - brake pedal
release - brake pedal
fully close - RR deaeration bolt
open - LR deaeration bolt

Stop

XX - Basic settings

select item in drop-down menu: IDEXXXXX Bleeding of the brakes

In the parameter menu, select: Bleeding of the brakes - rear axle

Start

X x fully depress - brake pedal
release - brake pedal
fully close - LR deaeration bolt
Deaeration jig > OFF

Stop

XX - Basic settings

select item in drop-down menu: IDEXXXXX Bleeding of the brakes

In the parameter menu, select: Bleeding of the brakes - X. Flushing cycle

Start

X x fully depress - brake pedal

Stop

open - RR deaeration bolt
Deaeration jig > ON
fully depress - brake pedal
continue as soon as clean air-bubble free brake fluid starts flowing
fully close - RR deaeration bolt

open - LR deaeration bolt
fully depress - brake pedal
continue as soon as clean air-bubble free brake fluid starts flowing
fully close - LR deaeration bolt
Deaeration jig > OFF

further, do:

- Bleed the system in a conventional manner

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