Engines / Petrol / MED 9.1 general / Test - aeration of fuel tank - tightness

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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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Conditions:
- engine speed = idling
- intake air temperature > XX°C (XX - Measured values group XXX field X)
- appliances = OFF

XX - Basic settings group XXX
activate default settings

required values
field X = Syst: OK

if values are not achieved, check part:
- diagnostic pump of fuel system
- fuel tank
- tightness of line
- aeration of fuel tank
- check of error memory

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