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Checking oil pressure

Checking oil pressure


1. Raise the car.

2. Remove the lower engine cover.


3. Place a receptacle under the oil pressure switch.

4. Lower the car to the floor.

5. Remove the upper engine cover and insulation.

6. Unplug the oil pressure switch connector.


7. Remove Engine oil pressure switch (44) .

8. Fit 87 92 301 Adapter, oil pressure kit and 87 91 600 Pressure measuring equipment .


9. Attach the coolant hose to the oil cooler and fill coolant.


10. Connect an exhaust hose and start the engine.

Note

Do not allow the engine to run longer than necessary to check the specified oil pressure values.


11. Measure oil pressure:

• Idling speed >1 bar

• Engine at operating temperature >4 bar at 4000 rpm.

12. Switch off the engine.

13. Remove 87 92 301 Adapter, oil pressure kit and 87 91 600 Pressure measuring equipment .

14. Place a receptacle under the radiator and drain the cooling system.

15. Detach the coolant hose from the oil cooler and move it aside.

16. Fit Engine oil pressure switch (44) .


17. Plug in the connector.

18. Fit the lower engine cover.

19. Lower the car to the floor.

20. Check the engine oil level. Fill to the prescribed quantity as necessary. See Lubricating system .