Engines / Diesel / 1.9/74kW TDI-PD AVQ / Bleeding of fuel system

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Mark	Model	Control unit	Diagnostic operation

Mark

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 3x.

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Conditions:
- fuel system - closed

connect with the control unit XX - engine

variant X

XX - Basic settings group XXX
activate default settings

wait - XXs

Start the engine

desired condition:
engine speed = idling

upon non--achievement of condition - repeate this test

variant X

XX - Actuators

select item: fuel pump

Start

wait XXs

check of error memory

Start the engine

desired condition:
engine speed = idling

upon non--achievement of condition - repeate this test

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