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Home >> BMW >> 2011 >> 740i >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Engine - Repair (N54, 2011-2012) >> Oil Supply >> 11 40 000 Checking engine oil pressure (N54)

11 40 000 Checking engine oil pressure (N54)

Special tools required: 

Necessary preliminary tasks: 

Disconnect plug connection (1) on oil pressure switch.

Installation note: 

Plug connection (1) must snap audibly into place!

Remove oil pressure switch (2). 

Tightening torque 12 61 1AZ .

Fig 1: Identifying Oil Pressure Sensor And Plug
G04751376Courtesy of BMW OF NORTH AMERICA, INC.

Screw in special tool 11 4 050 with sealing ring (1).

Fig 2: Identifying Special Tool (11 4 050) And Sealing Ring
G04740314Courtesy of BMW OF NORTH AMERICA, INC.

Checking engine oil pressure with BMW diagnosis system: 

Connect special tools 13 6 054 and 13 6 051 .

Checking engine oil pressure with pressure gauge: 

Connect special tools 13 3 063 and 13 3 061 .

Start engine and check engine oil pressure.

Compare actual values with prescribed SETPOINT VALUES .

Fig 3: Checking Engine Oil Pressure With Pressure Gauge
G04740315Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.