Engines / Petrol / MED 9.1.2 general / Test of filling pressure

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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

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connect with the control unit XX - engine

XX - Measured values group XXX
observe values:
field X = required value (filling pressure)
field X = actual value (filling pressure)

desired condition:
field X = field X ± XX mbar

upon non--achievement of condition - check component:
- turbo blower
- filling pressure control valve
- Intake air mass sensor
- negative pressure system - tightness of line
- intake system - tightness of line

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