11 25 530 Removing and installing / replacing all pistons (M62): Removal

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Removal of pistons is described separately from installation. The assembly sequence for removal and installation is different.

Remove both cylinder heads. See 11 12 107 Removing and installing both cylinder heads (M62)
Remove upper oil sump section.
Remove oil pump.

IMPORTANT: Re-install piston, conrod and bearing shells back in the same position and in the same installation location.
Conrod and conrod bearing cover are designated with same pair number: do not interchange / confuse.

IMPORTANT: When removing and installing pistons, there is a risk of the spray nozzles being damaged.
Unfasten screw and remove spray nozzle.

Fig 1: Unfastening Screw And Removing Spray Nozzle

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew conrod bearing cover.

Fig 2: Unscrewing Conrod Bearing Cover

Courtesy of BMW OF NORTH AMERICA, INC.

Insert special tool 11 2 470 in conrod.

Remove conrod with piston from cylinder head side.

Fig 3: Removing Conrod With Piston From Cylinder Head Side

Courtesy of BMW OF NORTH AMERICA, INC.

Lift out retaining ring and press out piston pin.

IMPORTANT: Piston and piston bolts are paired and must not be fitted individually.

Fig 4: Lifting Out Retaining Ring And Pressing Out Piston Pin

Courtesy of BMW OF NORTH AMERICA, INC.