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

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2010 BMW X5, 2010 BMW X3, 2009 BMW X5, 2009 BMW X3, and 2008 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

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

G04751248

Courtesy of BMW OF NORTH AMERICA, INC.

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

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

G04740314

Courtesy of BMW OF NORTH AMERICA, INC.

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

G04740315

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.