A3 Quattro L4-2.0L Turbo (CBFA) (2009)
Leak Detection Pump: Testing and Inspection
Leak Detection Test, Performing
Diagnostic leak test occurs in "Guided Fault Finding".
Checking fuel supply and tank ventilation systems for leaks
‹› The following describes individual areas in the fuel supply and ventilation systems where leaks are possible. After repairing a possible leak,
perform a leak test to ensure that leak was successfully repaired.
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Switch off ignition.
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Check whether the fuel filler cap of the fuel tank was completely sealed for the test.
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Check whether seal of fuel filler cap was damaged or crimped. Replace if necessary.
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Remove rear seat bench
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Unclip catches - arrows - of right connector flange cover.
Vehicles with all wheel drive:
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Unclip retainers - arrows - of cover for left sealing flange.
All Vehicles
‹› Observe installation notes for locking flanges => [ Installing ] See: Fuel Delivery and Air Induction/Fuel Pump/Service and Repair/Fuel Delivery
Unit and => [ Installing ] See: Fuel Delivery and Air Induction/Fuel Pump/Service and Repair/Fuel Delivery Unit.