11 40 000 Checking engine oil pressure (N52, N52K)

WARNING: This page is about a different variant/trim than selected.

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.

Necessary preliminary tasks

Remove engine 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).

Fig 1: Releasing Screws

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Screw in special tool 11 4 050 with sealing ring. See Fig 2.

Fig 2: Identifying Special Tool (11 4 050) And Sealing Ring

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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.

See 41 OIL PUMP WITH FILTER AND DRIVE .

Fig 3: Checking Engine Oil Pressure

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Assemble engine.