Oil Pressure Sender: Testing and Inspection

Oil Pressure and Switch, Checking

Special tools, testers and auxiliary items required

• Oil pressure gauge (VAG 1342)

• Voltage tester (VAG 1527B)

• Connector test set (VAG 1594C)

• Vehicle diagnostic tester

• Engine oil level OK.

• Engine oil temperature at least 80° C (176° F) (radiator fan must start up once)

- Bring the lock carrier into service position. Radiator Support

- Support the lock carrier using a sleeve - B -, 80 millimeters (mm) in length, for example, from (VW 540/1A) and a M8 x 100 bolt - A -.





- Remove the oil pressure switch (F1) and install it into the (VAG 1342).





- Install the (VAG 1342) into the oil filter bracket in place of the oil pressure switch.

- Connect the brown wire of the (VAG 1342) to ground (GND).

- Connect the (VAG 1527B) using adapter cables from (VAG 1594C) to B+ and the oil pressure switch.

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

- If LED lights up, replace the oil pressure switch (1.4 bar).

If the LED does not light up:

- Start the engine and increase the engine speed.

• The LED must illuminate at 1.2 to 1.6 bar. Replace the oil pressure switch if it does not.

- Increase engine speed further.

• At higher engine speeds the oil pressure must not exceed 7.0 bar

• At 2000 RPM and an oil temperature of 80 °C (176 °F), the oil pressure must be 2.7 to 4.5 bar.



If the specification is not obtained:

- Check the screen in the oil intake pipe for contamination.

• Also, mechanical damage, for example, bearing damage can also be the cause of too low oil pressure.

If no malfunction can be found:

- Replace the oil pump. Refer to one of the following:

• => [ Oil Pump, through MY 2007 ] Oil Pump, Through MY 2007.

• => [ Oil Pump, from MY 2008 ] Oil Pump, From MY 2008.

If the specification is exceeded:

- Check the oil passages.

- Replace the oil filter bracket if necessary.