11 21 500 Replacing crankshaft (S65)

WARNING: This page is about a different car, the 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

00 9 120
00 9 130
11 4 370
11 4 470
11 9 360

See MAINTENANCE AND GENERAL INFORMATION - SPECIAL TOOLS .

See ENGINE - SPECIAL TOOLS .

IMPORTANT: Unscrew all M9 fit bolts first before releasing the crankshaft lower section.
Altered settling behavior at the crankcase!
If the main bearing channel is opened after engine operation, all main bearing shells must be replaced with special repair bearing shells marked with an (R).
There are two different groups of main bearing shells.

Necessary preliminary tasks:

Remove engine.
Mount engine on assembly stand.
Remove flywheel .
Remove vibration damper .
Removing oil sump .
Remove engine oil pump .
Remove oil return pump .
Remove cylinder head on left and right .
Remove all piston s.
Remove both timing chains .

Release screws (1).

Remove holder for oil intake pipe.

Fig 1: Identifying Oil Intake Pipe Screws

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IMPORTANT: Unscrew all M9 fit bolts (2) first before releasing the crankshaft lower section - risk of damage!

Fig 2: Identifying Bearing Seat Bolts

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Bearing seat bolts (1) M11.

IMPORTANT: Release all M9 fit bolts and remove.

Release fit bolts (M9) in sequence 1-10 and remove.

Fig 3: Crankshaft Lower Section Bolts (M9) Tightening/Loosening Sequence

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Release M11 bearing seat bolts in sequence 1-10.

Fig 4: Crankshaft Lower Section Bolts (M11) Tightening/Loosening Sequence

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Release screws (3).

Unfasten screws (2).

Bolts (1) from inside outwards.

Remove bedplate upwards.

Fig 5: Identifying Bedplate Bolts And Screws

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Lever out crankshaft (1) with aid of a second person in direction of arrow.

NOTE: Weight of crankshaft approx. 22 kg.
Picture shows S85.

Fig 6: Removing Crankshaft

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IMPORTANT: If the bedplate is opened and closed again, fit special main bearing shells marked with (R) on the bearing backs.

Replace all bearing shells (2).

Replace guide bearing (3).

Installation:

Clean sealing face (1) with special tool 11 4 470.

Fig 7: Identifying Bearing Shells And Guide Bearing

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Remove sealing compound from joint (1).

Carefully clean threads and contact faces in upper and lower sections of crankcase.

Installation:

Replace nozzles (2).

Clean sealing face (1) with special tool 11 4 470.

Fig 8: Identifying Sealing Face And Nozzles

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Installation:

Replace main bearing shells.

Apply a light coating of engine oil to bearing shells.

Lay crankshaft (1) with a second person helping in direction of arrow into crankcase.

NOTE: Weight of crankshaft approx. 22 kg.
Picture shows S85.

Fig 9: Removing Crankshaft

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Insert seal (1).

IMPORTANT: Make sure oil bore is clean.

Fig 10: Identifying Seal

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IMPORTANT: Adhere without fail to the specified sequence of bedplate bolt connections.
Risk of damage to crankshaft.
Leaks at bedplate/crankcase.

IMPORTANT: There are no more dowel sleeves in the crankcase.
Do not use new bolts.
If new bolts are used, observe special tightening/torque specifications.

Position bedplate on crankcase.

Position lower section diagonally on bearing seats (1 and 5) using two fit bolts (1 and 2).

Join fit bolts (1 and 2) to 8 Nm.

Fig 11: Identifying Dowel Sleeves And Bolts

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Insert fit bolts (1-8).

Join fit bolts (1-8) to 8 Nm.

Fig 12: Crankshaft Bolts Tightening/Loosening Sequence

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Insert all M11 bolts (1).

Joint bearing seat bolts in sequence (1-10) to 30 Nm.

Fig 13: Crankshaft Bolts Tightening/Loosening Sequence

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Mark all M11 bearing seat bolts with a colored line (1).

Fig 14: Identifying M11 Bearing Seat Bolts With Colored Line

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Secure M11 bearing seat bolts with special tools 00 9 120 and 00 9 130 .

Fig 15: Identifying Special Tools (00 9 120)

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Tighten M11 bolts to 130° angle of rotation.

Tightening torque: 11 11 1AZ . See 11 11 ENGINE BLOCK .

IMPORTANT: Observe bolting sequence when using new bolts.

Fig 16: Crankshaft Bolts Tightening/Loosening Sequence

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Mark all fit bolts with a colored line (1).

Fig 17: Identifying Bolts With Colored Line

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Tighten fit bolts with special tools 00 9 120 and 00 9 130 .

Fig 18: Identifying Special Tools (00 9 120)

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Secure all fit bolts (1-10) to 130° angle of rotation.

Tightening torque: 11 11 2AZ . See 11 11 ENGINE BLOCK .

Fig 19: Crankshaft Bolts Tightening/Loosening Sequence

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Insert bolts (1).

Insert bolts (2).

Insert bolts (3).

Fig 20: Identifying Bedplate Bolts And Screws

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Secure bolts (1) M8x65 (22 x) with special tools 00 9 120 and 00 9 130 .

Tightening torque: 11 11 3AZ. See 11 11 ENGINE BLOCK .

Fig 21: Tightening Bolts Using Special Tool

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Secure bolts (1) M8x40 (4 x) with special tools 00 9 120 and 00 9 130 .

Tightening torque: 11 11 4AZ . See 11 11 ENGINE BLOCK .

Fig 22: Identifying Bolts M8x40 (4 X)

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Secure bolts (1) M6x30 (2 x).

Tightening torque: 11 11 5AZ. See 11 11 ENGINE BLOCK .

Fig 23: Identifying Bolts M6x30 (2 X)

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Drive in both nozzles with special tool 11 9 360 on left and right into crankcase.

Installation:

Always replace nozzles.

Fig 24: Driving Nozzles Special Tool (11 9 360)

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Installation:

Use primer 1.5 and liquid gasket 1.6 .

Prepare liquid gasket (2) in special tool 11 4 370 .

Screw on nozzle (1) for injecting liquid gasket.

Fig 25: Identifying Liquid Gasket And Nozzle

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Press sealing compound nozzle in direction of arrow onto nozzle at 90°.

Slowly and evenly insert liquid gasket (1) with special tool 11 4 370 in direction of arrow.

Fig 26: Pressing Sealing Compound Nozzle Onto Nozzle

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Stop (seal off) escaping liquid gasket with primer 1.5 at outlet bore (1).

Install radial shaft seal at front .

Install radial shaft seal at rear .

Fig 27: Applying Liquid Gasket With Primer At Outlet Bore

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Assemble engine.