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Home >> Mini >> 2010 >> Cooper S, 2D Hatchback, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 236 (Engine - Repair Instructions - X5 (4.4L)) >> Pistons with Rings and Pin >> 11 25 530 Removing and installing / replacing all pistons (M62) >> M62 B35 / B44 only:

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.

Fig 1: Pressing Piston With Piston Rings Using Special Tool 11 2 260
G03251699Courtesy of BMW OF NORTH AMERICA, INC.

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!).

Fig 2: Installing Piston To Camshaft Drive
G03251700Courtesy of BMW OF NORTH AMERICA, INC.

Attach crankpin to connecting rod.

Fig 3: Attaching Crankpin To Connecting Rod
G03251701Courtesy of BMW OF NORTH AMERICA, INC.

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

Fit bearing caps so that pair numbers match up.

Install new conrod bolts.

Fig 4: Identifying Bearing Caps Pair Numbers
G03251702Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 5: Tightening Conrod Bearing With Special Tool 00 9 120
G03251703Courtesy of BMW OF NORTH AMERICA, INC.

Install spray nozzle and tighten down screw.

Fig 6: Installing Spray Nozzle
G03251704Courtesy of BMW OF NORTH AMERICA, INC.