A4 Sedan V6-3.2L (BKH) (2007)
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Press the switch on the Hand held remote control (jumper) briefly to bleed the fuel system
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Close the pressure gauge shut-off valve. The lever is perpendicular to the direction of flow - arrow -.
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Press the switch on the Hand held remote control (jumper) until no more pressure increase is observed on the fuel pressure gauge.
‹› Specification: approx. 6 bar positive pressure
If the specification was not obtained:
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Check the delivery rate of the fuel pump. Refer to => [ Fuel Pump Delivery Quantity, Checking ] See: Computers and Control Systems/Testing
and Inspection/Component Tests and General Diagnostics/Component Tests (VAG Code Tests)/Fuel Pump Delivery Quantity, Checking.
Checking residual pressure
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Check for leaks and residual pressure by observing the pressure loss on the pressure gauge.
‹› After 10 minutes there must be a residual pressure of at least 3.75 bar.
The holding pressure drops below 3.75 bar:
‹› Check the connection between the fuel pressure gauge and the fuel line for leaks.
‹› Check the pressure gauge for leaks.
‹› Check the fuel lines and their connections for leaks.
‹› Replace the fuel filter with integrated fuel pressure regulator.
‹› Replace the fuel pump.
Assembly is performed in the reverse order of removal. Note the following:
‹› Before disconnecting the pressure gauge, release the fuel pressure by opening the shut-off valve. Hold a container under the connection.
Torque specifications
