Checking engine oil pressure (B36 engine) (Cooper base)

Special tools required: 

• 2289 603
• 114310

Preliminary work needed: 

• Remove UNDERBODY PROTECTION
• Remove THRUST FIELD .

Removal: 

Undo oil drain plug (1) at hexagon head (2).

Drain the motor oil.

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Undo oil filter cover (1) at hexagon head (2).

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Checking engine oil pressure with diagnostic tester: 

Remount filter element (1) in the special tool 2 289 603.

Remount O-ring (2) if necessary.

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Screw special tool 2 289 603 with oil filter element into the oil filter housing (1).

Tightening torque: 11 42 1AZ .

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Connect special tools 2 289 603 and 11 4 310.

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Lightly oil O-ring at the pressure sensor (1), (100 bar, order number: 0 431 592  ).

Screw pressure sensor (1) hand-tight into special tool 11 4 310.

Connect connecting cable (2) of I (IMIB) to pressure sensor (1)  .

Run the corresponding test module.

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INSTALLATION: 

Stop engine.

Remove the special tools.

Check the freedom of movement of the return check valve (1).

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Replace oil filter (1).

Parts  : Oil filter (1).

Ensure that the oil filter (1) engages audibly.

Replace O-ring (2) and coat with motor oil.

Parts  : O-ring (2).

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Replace screw with O-ring (1)

Parts  : Screw with O-ring (1).

Wet the O-ring (1) with motor oil.

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The thread (1) must be cleaned before installation without fail with original BMW brake cleaner (part number: 83 19 2 365 214).

The thread must be completely free of motor oil!

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Oil drain plug (1).

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Install oil filter cover (1) and tighten at hexagon head (2).

Tightening torque: 11 42 1AZ .

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Tighten oil drain plug (1) at hexagon head (2).

Tightening torque 11 42 2AZ .

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Concluding tasks: 

• Install THRUST FIELD .
• Install UNDERBODY PROTECTION
• Vehicle horizontal
• Run engine for a brief period then switch off
• Check the oil level and correct, if required