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Home >> BMW >> 1997 >> 850Ci >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Diagnosis & Overhaul - ZF 5HP 30-E >> Component Disassembly & Reassembly >> Clutch "A", "B" & "C" >> Disassembly

Clutch "A", "B" & "C": Disassembly

  1. Remove needle bearing from sun gear shaft hub. Using Disassembly Tool (24 1 310), remove clutch "C" carrier from sun gear shaft. See Fig 1 and Fig 2 . Lift out sun gear shaft. Remove 2 square cut seals from sun gear shaft hub.
  2. Remove needle bearing from clutch "B" cylinder. Remove clutch "B" with intermediate shaft from clutch "C" carrier. Separate clutch "B" from intermediate shaft and remove bearing race and needle bearing. Remove snap ring from clutch "B" and remove clutch pack. Using appropriate compressor, press oil dam and spring plate, and remove snap ring. Remove oil dam and spring plate.
  3. Apply compressed air to oil hole in clutch "B" cylinder to force clutch "B" piston out of cylinder bore. Disassemble cylinder "A-C". Remove needle bearing and bearing race from cylinder "A-C". Remove snap ring and top clutch plate from clutch "A". Remove inner disc carrier "B" and inner disc carrier "C" from cylinder "A-C".
  4. Remove clutch pack from clutch "A". Remove snap ring from clutch "C". Remove both clutch packs. Press input shaft out of cylinder "A-C". Remove "O" ring and 2 square cut seals from input shaft. Using appropriate compressor, press oil dam and spring plate of clutch "A" and remove snap ring and oil dam from cylinder "A-C". Remove "O" ring from oil dam.
  5. While covering one oil supply hole, apply compressed air to other oil hole to force clutch "A" piston from cylinder "A-C". Remove "O" rings from clutch "A" piston. Using appropriate compressor, press clutch "C" retaining ring and remove snap ring from cylinder "A-C". Remove retaining ring and spring plate.
  6. While covering one oil supply hole, apply compressed air to other oil hole to force clutch "C" piston from cylinder "A-C". Remove "O" rings from clutch "C" piston. Remove snap ring and bushing from cylinder "A-C". Remove 2 "O" rings from bushing.
Fig 1: Cylinder "A-C" Components
G98C13153Courtesy of ZF GETRIEBE GMBH SAARBRUCKEN
Fig 2: Clutch "B" Components
G98D13154Courtesy of ZF GETRIEBE GMBH SAARBRUCKEN