Passat Wagon L4-2.0L Turbo (BPY) (2008)
loosening hose connections, place rags around the connection point. Then release pressure by carefully pulling on hose.
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Remove the fuel supply line - 2 - and catch leaking fuel using a rag.
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Install a High pressure fuel gauge in place of the fuel supply line.
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Open the shut-off valve of the High pressure fuel gauge.
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Switch the ignition on and off until the fuel pressure on no longer rises.
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Check the indicated fuel pressure on the High pressure fuel gauge.
Specified value: 3.5 to 5.0 bar.
If the fuel pressure is OK, check the residual pressure. Refer to => [ Residual Pressure, Checking ] See: Computers and Control Systems/Testing and
Inspection/Component Tests and General Diagnostics/Diagnostic Procedures/Residual Pressure, Checking.
If specified value is obtained:
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Check the return line between the fuel filter and the fuel pump for kinks and blockage.