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11 40 000 Checking engine oil pressure (N55)

WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

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.
Diagnosis path:
  • DME Digital Motor Electronics
  • Complete vehicle
  • Power train
  • Engine electronics
  • Engine oil
  • Oil-pressure control

Special tool 11 9 250 must be converted for N55

Necessary preliminary tasks: 

Secure special tool 11 9 250 at hexagon head in a vice.

Release insert (2) using a slotted screwdriver (1) in direction of arrow.

Fig 1: Releasing Insert Using Slotted Screwdriver
G09953860Courtesy of BMW OF NORTH AMERICA, INC.

Release screw piece (1) on special tool 11 6 410 .

Fig 2: Releasing Screw Piece On Special Tool 11 6 410
G09953861Courtesy of BMW OF NORTH AMERICA, INC.

Install special tool 11 6 410 in special tool 11 9 250 .

Insert central bolt with a slotted screwdriver (1) hand-tight.

Fig 3: Inserting Central Screw With Slotted Screwdriver
G09953862Courtesy of BMW OF NORTH AMERICA, INC.

Insert screw piece (1) hand-tight in direction of arrow on special tool 11 6 410 .

Fig 4: Inserting Screw Piece On Special Tool 11 6 410
G09953863Courtesy of BMW OF NORTH AMERICA, INC.

Release oil filter cover with special tool 11 9 240 .

Tightening torque: 11 42 1 AZ .

Fig 5: Releasing Oil Filter Cover Using Special Tool 11 9 240
G09953864Courtesy of BMW OF NORTH AMERICA, INC.

Carefully detach filter element.

Installation note: 

Check all O-rings for damage, replace if necessary.

Fig 6: Checking O-Rings
G09953865Courtesy of BMW OF NORTH AMERICA, INC.

Install filter element (1) in special tool 11 9 250 .

Installation note: 

Coat O-ring with engine oil.

Fig 7: Installing Filter Element In Special Tool 11 9 250
G09953866Courtesy of BMW OF NORTH AMERICA, INC.

Order number for special tool: Bolt 2 212 823 with 11 4 310.

Screw the pressure sensor (1) hand tight.

Apply light coating of oil to sealing ring at pressure sensor (1) 100 bar.

Fig 8: Identifying Pressure Sensor And Special Tool
G09953867Courtesy of BMW OF NORTH AMERICA, INC.

Measure the engine oil pressure with diagnosis system. 

Order number for special tool: Screw 2 212 823 to oil filter housing.

Special tool 11 4 310 on special tool, order number: 2 212 823.

Screw in pressure sensor (1) 100 bar at special tool 11 4 310 (finger-tight).

Connect cable (2) of IMIB (Integrated Measurement Interface Box) to pressure sensor (1) 100 bar.

Graphic N20.

Fig 9: Measuring Engine Oil Pressure With Diagnosis System
G09953868Courtesy of BMW OF NORTH AMERICA, INC.

Start engine and check engine oil pressure by means of diagnosis.