Oil Temperature Sensor/Switch: Testing and Inspection

Oil Pressure and Oil Pressure Switch, Checking

Special tools, testers and auxiliary items required

• Oil pressure gauge (VAG 1342) with adapter (VAG 1342/14)

• Voltage tester (VAG 1527 B)

• Connector test set (VAG 1594 C)

Procedure

• Oil level OK

• Engine oil temperature approximately 80 °C.

- Remove the front engine cover in - direction of arrows - if applicable.





- Disconnect electrical harness connector from oil pressure switch (F1) - item 2 -.

- Remove oil pressure switch - 1 -.





- Connect oil pressure gauge (VAG 1342) with adapter (VAG 1342/14) into hole for oil pressure switch.

- Install oil pressure switch - 2 - into oil pressure gauge (VAG 1342).

- Place the brown wire of the oil pressure gauge (VAG 1342) on a known good ground -GND- ("-").





Oil Pressure Switch, Checking

- Connect voltage tester (VAG 1527 B) using adapter cables from connector test kit (VAG 1594 C) to oil pressure switch and battery positive ("+").

• Light Emitting Diode (LED) must not light up.

If LED lights up:

- Replace oil pressure switch (F1).

- Start engine.

• While starting engine, watch pressure tester and LED as oil pressure switch may open during start.

• At 1.2 to 1.6 bar pressure, the LED must light up.

If LED does not light up:

- Replace oil pressure switch (F1).

Oil Pressure, Checking

- Start engine.

• Oil pressure at idle: min. 1.2 bar.

• Oil pressure at 2000 RPM: min. 3.0 bar.

If the specifications are not obtained: Check valve or oil pump malfunctioning.

- Replace oil pump. Refer to --> [ Oil Pump ] Oil Pump.

Assembling

Assembly is performed in reverse order.

Tightening Specifications