N62 B36

WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.

Lightly coat pistons and piston rings with oil. Offset the contact points of the piston rings by approx. 120° to each other but do not position above the piston pin boss.

Slide special tool 11 8 141 over piston (1).

Fig 1: Sliding Special Tool 11 8 141 Over Piston (1)

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Courtesy of BMW OF NORTH AMERICA, INC.

Install piston so that arrow points to camshaft drive.

CAUTION: Danger of piston ring failure.

Only press pistons into place with finger force - do not knock in!

Attach crankpin to connecting rod.

Remove special tools 11 8 151 and 11 8 152.

Fig 2: Removing Special Tools 11 8 151 And 11 8 152

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Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: For purposes of clarity, the pairing letters (1) are shown on the removed conrod.

CAUTION: Conrods and conrod bearing caps are denoted with the same pairing letters (1), do not mix them up.

Fig 3: Identifying Pairing Letters On Conrod

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Courtesy of BMW OF NORTH AMERICA, INC.

Apply light coat of oil to connecting-rod bearing shells.

Fit bearing cap so that pairing letters match up.

Install new connecting-rod screws.

Fig 4: Installing Connecting-Rod Screws

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Courtesy of BMW OF NORTH AMERICA, INC.

Secure conrod with special tool 00 9 120.

Tightening torque, refer to 11 24 1AZ in ENGINE - TIGHTENING TORQUES .

Fig 5: Securing Conrod With Special Tool 00 9 120

G03286244

Courtesy of BMW OF NORTH AMERICA, INC.