Replace all connecting rod bearings (S63T2) (X5 M)

Special tools required: 

• 00 2 590
• 00 9 120

Necessary preliminary work 

• Remove all PISTONS .

Install new connecting rod bearing shells.

Install one brown bearing shell (1) and one green bearing shell (2) per connecting rod.

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Connecting rod bearing cap (1) is installed on the green bearing shell, the fastener on the bearing shell is struck on the left and right (see arrows).

Connecting rod bearing cap (2) is installed on the brown bearing shell, the fastener on the bearing shell is struck on one side (see arrows).

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Use a commercially available vacuum cleaner (2) to vacuum clean cracked areas (1).

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Check connecting-rod bearing play  .

Piston in BDC position.

Fit special tool 00 2 590 (Plastigage type PG 1) to oil-free crankshaft.

Fit bearing caps so that matching numbers match up.

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Use connecting rod bolts to check connecting-rod bearing play.

Connecting rod bolts with special tool 00 9 120.

Tightening torque 11 24 1AZ .

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Remove bearing cap and read off radial clearance at width of crushed plastigage with assistance of measuring scale.

CONNECTING ROD BEARING PLAY .

• Remove Plastigage.
• Lubricate crankshaft and bearing shells.
• Install new connecting rod bolts.

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Fasten the connecting rod bolts using special tool 00 9 120.

Tightening torque 11 24 1AZ .

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Assemble engine.