11 40 000 Checking engine oil pressure without hydraulic valve (N52, N52K)

WARNING: This page is about a different car, the 2011 BMW Z4, 2010 BMW Z4, and 2009 BMW Z4. 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.
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).

Fig 1: Disconnecting Plug Connection On Oil Pressure Switch

G04751248

Courtesy of BMW OF NORTH AMERICA, INC.

Screw in special tool 11 4 050 with sealing ring.

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

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.

Specified values See OIL PUMP WITH STRAINER AND DRIVE N52K/B25 .

Fig 3: Checking Engine Oil Pressure With Pressure Gauge

G04740315

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.