A6 Quattro Sedan V6-2.7L Turbo (APB) (2000)
Oil Pressure Sender: Testing and Inspection
Oil pressure and oil pressure switch, checking
Note: Servicing and checking function of oil pressure warning lamp and buzzer:
Test procedure
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Remove oil pressure switch (F1) and screw oil pressure switch into tester.
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Screw tester into oil pan in place of oil pressure switch.
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Connect brown wire of tester to Ground (-).
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Using test leads from V.A.G 1594, connect diode test lamp V.A.G 1527 between positive battery terminal (+) and oil pressure switch.
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Start engine and gradually increase engine speed LED should light up at 1.2...1.6 bar, otherwise replace oil pressure switch.
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Increase engine speed further. At 2000 RPM and an oil temperature of 80°C oil pressure should be at least 2.0 bar.