N62 B44

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.

Compress piston rings with special tool 11 9 500.

Fig 1: Compressing Piston Rings

Courtesy of BMW OF NORTH AMERICA, INC.

Keep piston rings compressed with special tool 11 9 500. 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!

Fig 1: Installing Piston Rings

Courtesy of BMW OF NORTH AMERICA, INC.