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11 12 503 Disassembling And Assembling Cylinder Head - Cylinder Head Removed (S54)

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Special Tools Required: 

Provide special tools for removing valve springs.

Secure special tool 11 1 065 to special tool 00 1 490.

Secure special tool 11 3 411 with special tool 11 1 045 in special tool 11 1 065.

Assemble special tools.

Fig 2: View Of Special Tools For Removing Valve Springs
G03117716Courtesy of BMW OF NORTH AMERICA, INC.

Secure cylinder head to special tool 11 1 065.

NOTE: Secure cylinder head from below through locating board with special tool 11 3 412 in spark plug threads.
Fig 3: Securing Cylinder Head To Special Tool
G03117717Courtesy of BMW OF NORTH AMERICA, INC.

Remove coolant pipe (1).

Installation: 

  1. Clean sealing surface.
  2. Replace O-rings.
    Fig 4: Removing Coolant Pipe
    G03117718Courtesy of BMW OF NORTH AMERICA, INC.

Release bearing pin (1) for tensioning rail (2).

Remove tensioning rail (2).

Installation: 

  1. Replace sealing ring.
  2. Tightening torque of bearing pin (1) 13 N.m.
    Fig 5: Removing Tensioning Rail
    G03117719Courtesy of BMW OF NORTH AMERICA, INC.

Remove exhaust and inlet rocker arm shafts. Refer to 11 33 545 REMOVING AND INSTALLING/REPLACING ROCKER ARM SHAFT (S54) .

Remove all valve springs. Refer to 11 34 715 REPLACING ALL VALVE SEALS - CYLINDER HEAD REMOVED (S54) .

Replace all stem seals. Refer to 11 34 560 REPLACING ALL VALVE STEM SEALS - CYLINDER HEAD REMOVED (S50 / S54) .

Remove all valves. Refer to 11 34 552 REMOVING AND INSTALLING OR REPLACING ALL VALVES - CYLINDER HEAD REMOVED (S54) .