Oil Pressure Sender: Testing and Inspection

Oil Pressure and Oil Pressure Switch, Checking

Special tools, testers and auxiliary items required

• Oil Pressure Gauge (V.A.G 1342)

• Voltage Tester (V.A.G 1527 B)

• Connector Test Set (V.A.G 1594 C)

• Socket 24 mm and Jointed Extension (T40175)

Oil Pressure Switch, Checking

Conditions

• The engine oil level is OK. Checking, refer to => [ Engine Oil Level, Checking ] Testing and Inspection.

• The engine oil temperature is at least 80 °C (176 °F) coolant fan must start up once).

• Function test and servicing the optical and acoustic oil pressure indicator.

- Remove the oil pressure switch, brown insulation, using the socket 24 mm and jointed extension (T40175) and install it into the tester.






- Thread the oil pressure gauge into the oil filter adapter in place of the oil pressure switch.

- Connect the brown wire on the tester to ground (-).

- Connect the voltage tester (V.A.G 1527 B) using adapter cables from the connector test set (V.A.G 1594 C) to battery positive (+) and the oil pressure switch. The Light Emitting diode (LED) must not light up.

- Start the engine and slowly increase the engine speed. The LED must illuminate at 0.55 to 0.85 bar. Replace the oil pressure switch if it does not.

Oil Pressure, Checking

- Increase the engine speed further. At 2000 RPM's and with the oil temperature at 80 °C (176 °F), the oil pressure must be a minimum of 2.0 bar.

At higher engine speeds, the oil pressure must not exceed 7.0 bar. If necessary, replace the oil filter bracket.