11 25 671 Replacing piston rings on all pistons (M62): Installation

WARNING: This page is about a different car, the 2003 BMW X5 and 2002 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Insert piston rings with the word "TOP" facing piston crown.

Fig 1: Identifying Piston Ring Installed Positions

Courtesy of BMW OF NORTH AMERICA, INC.

Arrange piston ring contact points with offset of approx. 120° to one another, but not over piston pin eye.

End float,

refer to PISTONS WITH RINGS AND PINS in Technical Data.

Fig 2: Measuring Ring End Float

Courtesy of BMW OF NORTH AMERICA, INC.

Gap in cylinder,

refer to PISTONS WITH RINGS AND PINS in Technical Data.

Fig 3: Measuring Ring End Gap In Cylinder

Courtesy of BMW OF NORTH AMERICA, INC.