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Manual Transmission: Removal

WARNING: This page does not describe the selected car, but rather 20 other vehicles, including the 2007 BMW Z4, 2006 BMW Z4, 2006 BMW 330Ci, 2006 BMW 325Ci, and 2005 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect battery. See INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY.
  2. Remove reinforcement plate. See REINFORCEMENT PLATE  .
  3. Remove engine underguard (1). See Fig 1 . Remove underbody protection.
  4. E46 only: remove heater bulkhead and intake hood.
  5. Remove heat shield (1). See Fig 2 .
  6. Remove heat shield (1). See Fig 3 .
  7. E46 only: release screws and remove exhaust bracket (1). See Fig 4 .
  8. Z4 only: release screws and remove exhaust bracket (1). See Fig 5 .
  9. Support transmission from underneath. Release screws and remove cross-member (1). See Fig 6 .
  10. Unfasten screws. See Fig 7 .
  11. Grip propeller shaft and release nuts. See Fig 8 . Bend propeller shaft downwards at center bearing. Detach propeller shaft from transmission output flange and tie back to side on vehicle underbody.
    12. CAUTION: Position special tool so that engine oil sump is securely resting on special tool.
  12. Lower transmission. E46 only: Lower transmission until cylinder head touches bulkhead. Suspend Special Tool (11 8 022) from left and right control arms. See Fig 9 . Tighten down knurled screws until special tool rests against engine oil sump.
    13. CAUTION: Relieve tension on clutch slave cylinder slowly when removing; otherwise air will be drawn in through sealing sleeve.
  13. Release nuts and remove clutch slave cylinder. Pressure pipe remains connected. See Fig 10 .
  14. Detach locking clamp. See Fig 11 .
  15. Pull shift rod (1) out of shift rod joint (2) and remove shims (3). See Fig 12 .
  16. Use a screwdriver to lift out spring (1) from lug (2) on the housing and swivel upwards. See Fig 13 .
  17. Remove bearing pin (1). See Fig 14 .
  18. Detach cable plug (1) from reverse gear switch. See Fig 15 . Detach cables from fixtures.
    19. CAUTION: DO NOT allow the transmission to hang from the transmission input shaft as this will deform the clutch plate.
  19. Support transmission with a workshop hoist. Unfasten screws. See Fig 16 . Pull out transmission towards rear as far as possible, rotate approximately. 10 degrees counterclockwise and remove.
  20. Subsequent work on transmission: Support transmission with Special Tool (23 0 170) on assembly stand (00 1 450). See Fig 17 .
Fig 1: Removing Engine Underguard
G00367849Courtesy of BMW OF NORTH AMERICA, INC.
Fig 2: Removing Second Heat Shield
G00374661Courtesy of BMW OF NORTH AMERICA, INC.
Fig 3: Removing First Heat Shield
G00367851Courtesy of BMW OF NORTH AMERICA, INC.
Fig 4: Removing Exhaust Bracket (E46)
G00374662Courtesy of BMW OF NORTH AMERICA, INC.
Fig 5: Removing Exhaust Bracket (Z4)
G00374672Courtesy of BMW OF NORTH AMERICA, INC.
Fig 6: Removing Cross-Member
G00374663Courtesy of BMW OF NORTH AMERICA, INC.
Fig 7: Locating Flexible Disk Screws
G00374664Courtesy of BMW OF NORTH AMERICA, INC.
Fig 8: Detaching Propeller Shaft From Transmission Output Flange
G00367858Courtesy of BMW OF NORTH AMERICA, INC.
Fig 9: Lowering Transmission
G00367859Courtesy of BMW OF NORTH AMERICA, INC.
Fig 10: Removing Clutch Slave Cylinder
G00374665Courtesy of BMW OF NORTH AMERICA, INC.
Fig 11: Detaching Locking Clamp
G00374666Courtesy of BMW OF NORTH AMERICA, INC.
Fig 12: Pulling Shift Rod Out
G00374667Courtesy of BMW OF NORTH AMERICA, INC.
Fig 13: Levering Out Spring
G00374668Courtesy of BMW OF NORTH AMERICA, INC.
Fig 14: Removing Bearing Pin
G00374669Courtesy of BMW OF NORTH AMERICA, INC.
Fig 15: Locating Cable Plug For Reverse Gear Switch
G00374673Courtesy of BMW OF NORTH AMERICA, INC.
Fig 16: Removing Transmission
G00374671Courtesy of BMW OF NORTH AMERICA, INC.
Fig 17: Supporting Transmission On Assembly Stand
G00374674Courtesy of BMW OF NORTH AMERICA, INC.
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