Engine Oil Pressure: Testing and Inspection

11 40 000 Checking Engine Oil Pressure (N52, N52K)

Special tools required:






Important!
The regulated oil pump can only be checked and measured with the diagnosis system.
Vehicles with a regulated oil pump have a hydraulic valve fitted
If a hydraulic valve is fitted, proceed in accordance with Checking engine oil pressure.






Necessary preliminary tasks:
- Remove acoustic cover
- Protect drive belt against dirt
- Have a cleaning cloth ready to catch escaping oil






Disconnect plug connection on oil pressure switch (3)
Remove oil pressure switch (3).






Screw in special tool 11 4 050 with sealing ring.






Check engine oil pressure with diagnosis system.
Connect special tools 13 6 054 and 13 6 051.
Check engine oil pressure with pressure gauge.
Connect special tools 13 3 063 and 13 3 061.
Start engine and check engine oil pressure.
Specified values.






Assemble engine.