Oil Pressure Switch

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 Switch

- Bring the lock carrier into the service position. Radiator Support

- Remove the sealing plug - item 1 - in => [ Oil Filter Housing Assembly Overview ] Service and Repair, from the oil filter housing. Collect any leaking engine oil.

- Seal the oil pressure switch test hole on the (VAG 1342 ) with the sealing plug.

- Install the (VAG 1342) with the (VAG 1342/14 ) into the oil filter bracket in place of the sealing plug.

• Note the installed position of the adapter: The conical connecting neck of the adapter is installed to the pressure hose of the tester.

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

- Connect the (VAG 1527B) to the battery positive and the oil pressure switch (connection in the engine compartment - arrow -) using adapter cables from the (VAG 1594C).





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

If the LED lights up:

- Replace the oil pressure switch - item 2 - in => [ Oil Filter Housing Assembly Overview ] Service and Repair.

If the LED does not light up:

• While starting the engine, watch the (VAG 1342) and LED as he switch point of the oil pressure switch may already be exceeded during start.

- Start the engine and run at idle speed.

• The LED must light up at 0.7 to 1.1 bar pressure, otherwise replace the oil pressure switch - item 2 - in => [ Oil Filter Housing Assembly Overview ] Service and Repair.