A6 Sedan V6-2.8L (ATQ) (2000)
Oil Pressure Sender: Testing and Inspection
Note: For the functional check and servicing of the optical and acoustic oil pressure warning:
Refer to Powertrain Management.
Test sequence
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Remove oil pressure switch -F1- and install in tester.
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Install tester into oil pan in place of oil pressure switch.
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Connect brown wire of tester to Ground (GND).
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Using auxiliary cables from VW1594 connector test kit, connect VAG1527B voltage tester to Battery Positive Voltage (B+) and to oil pressure
switch.
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tart engine and increase engine speed (RPM) slowly.
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At 1.2 - 1.6 bar (17 - 23 psi) LED must light up
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If LED does not light up, replace oil pressure switch.
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Increase RPM further.
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At 2000 RPM and an oil temperature of at least 80°C (176°F) oil pressure should be at least 2.0 bar (29 psi).