Touareg V6-3.2L (BMX) (2005)
If specified value is achieved:
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Switch off ignition.
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Check for leaks and residual pressure. Observe pressure drop on pressure gauge. After 10 minutes there must be a residual pressure of at least 3.0
bar.
If the residual pressure drops below 3 bar:
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Check pressure gauge for leaks.
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Check fuel pump non-return valve --> [ Fuel Pumps, Checking ] See: Computers and Control Systems/Testing and Inspection/Component Tests
and General Diagnostics/Fuel Pumps, Checking.
When removing the pressure gauge after completing the test:
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Switch off ignition.
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Open cut-off valve of pressure tester to release fuel pressure.
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Remove pressure gauge with adapters.
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In addition, wrap a cloth the around connection to catch fuel which runs out.