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Home >> BMW >> 1989 >> 735iL >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Overhaul - ZF 4HP22 & 4HP24 >> Component Disassembly & Reassembly >> Clutches "C1" & "D" >> Reassembly

Clutches "C1" & "D": Reassembly

  1. Coat all discs and plates with ATF. Ensure all plates and discs are installed in proper sequence and number as when removed. See PLATE & DISC USAGE chart.
  2. If discs or plates are replaced, soak new parts in ATF for 20 minutes before installing. When installing one-way clutch, bent over tabs or OBEN (top) must be seen. When inserting end plate, ensure that center tooth of group of 3 teeth engage in opening of cylinder.
PLATE & DISC USAGE

Application No. Of Plates
Clutch "A"
Spring Plate 2
Lined Plates 5
Steel Plates .07" (1.8 mm) 6
Clutch "B"
End Plate .177" (4.50 mm) 1
Lined Plates 4
Steel Plates .08" (2.1 mm) 4
Clutch "C"
Lined Plates 2
Steel Plates 2
End Plate .177" (4.50 mm) 1
Brake "D"
Lined Plates 2
Steel Plate .06" (1.5 mm) 1
Steel Plate .08" (2.1 mm) 1
Brake "E"
End Plate .047" (1.20 mm) 1
Lined Plates .07" (1.8 mm) 4
Steel Plates 4
Brake "C"
Lined Plates 4
Steel Plates .06" (1.5 mm) 4
End Plate 1
Brake "F"
Lined Plates 3
Steel Plates .08" (2.1 mm) 3
End Plates .177" (4.50 mm) 1
Fig 1: Disassembling "C" One-Way Clutch & Plates
G00049410Courtesy of BMW OF NORTH AMERICA, INC.
Fig 2: Reassembling Clutches "D" & "E"
G00049411Courtesy of BMW OF NORTH AMERICA, INC.
Fig 3: Exploded View Clutch "E" Assembly
G00049412Courtesy of BMW OF NORTH AMERICA, INC.
Fig 4: Exploded View Planetary Gear & Axial Bearing
G00049413Courtesy of BMW OF NORTH AMERICA, INC.
Fig 5: Exploded View Front Planetary Gear Set
G00049414Courtesy of BMW OF NORTH AMERICA, INC.
Fig 6: Exploded View Clutch "C" Assembly
G00049415Courtesy of BMW OF NORTH AMERICA, INC.
Fig 7: Exploded View Clutch "F" Assembly
G00049416Courtesy of BMW OF NORTH AMERICA, INC.