N62 B36

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2005 BMW 745i, 2005 BMW 745Li, 2004 BMW 745i, 2004 BMW 745Li, and 2003 BMW 745i. 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 Over Piston

G03288856

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

G03288857

Courtesy of BMW OF NORTH AMERICA, INC.

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

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

Fig 3: Identifying Pairing Letters

G03288858

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.

Fig 4: Installing New Connecting-Rod Screws

G03288859

Courtesy of BMW OF NORTH AMERICA, INC.

Install new connecting-rod screws.

Secure conrod with special tool 00 9 120.

Fig 5: Securing Conrod

G03288860

Courtesy of BMW OF NORTH AMERICA, INC.

Tightening torque 11 24 1AZ. Refer to ENGINE - TIGHTENING TORQUES .