Oil Pressure

Oil Pressure and Switch, Checking

Special tools, testers and auxiliary items required

• Oil pressure gauge (VAG 1342)

• Adapter (VAG 1342/14)

• Voltage tester (VAG 1527B)

• Connector test set (VAG 1594C)

• For the functional check and servicing of the optical and acoustic oil pressure warning.

Test Conditions

• Engine oil level OK

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

Oil Pressure

Procedure

- Install the (VAG 1342) with the (VAG 1342/14 ) to the oil filter bracket in place of the sealing plug. Refer to => [ Oil Pressure Switch ].

- Check the oil pressure at different speeds:

• 1500 RPM: at least 1.7 bar

• 2000 RPM: 3.0 to 5.5 bar

• above 2000 RPM: maximum 7.0 bar

If the specified values are not reached:

- Examine the filter intake for contamination.

- Examine the pressure pipe between the oil pump and cylinder block for tightness.

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

If a malfunction is found despite insufficient oil pressure:

- Replace the oil pump. Refer to => [ Oil Pump Assembly Overview ] Service and Repair.

The oil pressure must not exceed 7.0 bar.

If 7.0 bar is exceeded:

- Check the oil passages.

Possibly the oil pressure relief valve in the oil pump is plugged.

- Replace the oil pump. Refer to => [ Oil Pump Assembly Overview ] Service and Repair.