M62 B35 / B44 only:
WARNING: This page is about a different car, the 2003 BMW X5, 2002 BMW X5, 2001 BMW X5, and 2000 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
Lightly coat pistons and piston rings with oil.
Align contact points of piston rings (offset at approx. 120°, but not over piston pin lug).
Press together piston rings using special tool 11 2 260.
Install piston so that arrow points to camshaft drive.
Entire circumference of tightening strap must rest firmly on engine block.
IMPORTANT:
Danger of piston ring failure.
Press in piston only with finger force (do not knock in!).
Attach crankpin to connecting rod.
Apply light coat of oil to connecting-rod bearing shells.
Fit bearing caps so that pair numbers match up.
Install new conrod bolts.
Tighten down conrod bearing with special tool 00 9 120 or with special tool 11 2 110.
Tightening torque, see 11 24 1AZ in ENGINE - TIGHTENING TORQUES
Install spray nozzle and tighten down screw.