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





- Remove oil pressure switch (F1) and screw oil pressure switch into tester.
- Screw tester into oil pan in place of oil pressure switch.
- Connect brown wire of tester to Ground (-).
- Using test leads from V.A.G 1594, connect diode test lamp V.A.G 1527 between positive battery terminal (+) and oil pressure switch.
- Start engine and gradually increase engine speed LED should light up at 1.2...1.6 bar, otherwise replace oil pressure switch.
- Increase engine speed further. At 2000 RPM and an oil temperature of 80°C oil pressure should be at least 2.0 bar.