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Home >> BMW >> 2009 >> 650i 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 162 (REMOVAL & INSTALLATION - 545i & 645i (6HP26Z/N62)) >> Removal & Installation >> Automatic Transmission >> Removal

Automatic Transmission: Removal

WARNING: This page is about a different car, the 2005 BMW 645Ci, 2005 BMW 545i, 2004 BMW 645Ci, and 2004 BMW 545i. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Numbers in text refer to numbers in figures.
  1. Disconnect battery. See INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY.
  2. Remove underbody protection at front and rear.
  3. Remove reinforcement plate.
  4. Remove exhaust system after catalytic converter. See REMOVING AND INSTALLING COMPLETE EXHAUST SYSTEM (N62).
  5. Remove heat shields (1) and (2). See Fig 1 .
  6. Detach plug (1) from speed sensor. See Fig 2 . Release screw (2) and remove speed sensor.
  7. Detach plug (1) from oil level sensor and unclip cable from fixtures. See Fig 3 .
  8. Detach plug (1) and unclip cable duct (3) from transmission housing. See Fig 4 . Tie wiring harness to one side.
  9. Grip clamping sleeve (1). See Fig 5 . Slacken selector lever nut (2). Detach retainer (3) towards bottom using a screwdriver. Pull cable (4) out of holder.
  10. Support transmission. Support with Special Tools (24 5 306, 24 5 301) and (00 2 030). See Fig 6 . Set up Special Tool (24 5 306):
    • All supports to "B".
    • Supports 3 and 4 are at rear of transmission.
    • Support lettering points forwards.
  11. Release screws (1) and nuts (2) and remove transmission cross-member. See Fig 7 .
  12. Remove propeller shaft and tie to one side. See REMOVING AND INSTALLING COMPLETE PROPELLER SHAFT.
  13. Unlock and disconnect mechatronics control module plug (1) by turning. See Fig 8 . Release cable from retainers. Insert Special Tool (24 2 390) in sealing sleeve. Mechatronics can be destroyed by static discharges. Contacts inside plug must not be touched. Insert Special Tool (24 2 390) immediately in sealing sleeve (1). See Fig 9 .
  14. Unscrew bolt (1). See Fig 10 . Disconnect hydraulic lines (2) to transmission fluid cooler.
  15. Crank engine at vibration damper in direction of rotation until screw is visible in opening. See Fig 11 . Release all screws of torque converter with Special Tool (24 1 110). Crank engine further and release remaining 3 screws.
  16. Prepare Special Tool (24 4 161) (1) with shaped piece (24 4 164) (2). See Fig 12 . Shaped piece (24 4 163) (3) is not required.
  17. Insert Special Tool (24 4 1601) into opening of transmission housing and clamp gently with screw (1). See Fig 13 . Twist in screw (2) and clamp down. Then tighten down screw (1).
  18. Unfasten screws of transmission-to-engine. See Fig 14 .
Fig 1: Removing Heat Shields
G00374752Courtesy of BMW OF NORTH AMERICA, INC.
Fig 2: Detaching Speed Sensor Plug
G00374742Courtesy of BMW OF NORTH AMERICA, INC.
Fig 3: Detaching Oil Level Sensor Plug
G00374753Courtesy of BMW OF NORTH AMERICA, INC.
Fig 4: Detaching Transmission Housing Plug
G00374754Courtesy of BMW OF NORTH AMERICA, INC.
Fig 5: Detaching Selector Lever Cable
G00374746Courtesy of BMW OF NORTH AMERICA, INC.
Fig 6: Supporting Transmission
G00374749Courtesy of BMW OF NORTH AMERICA, INC.
Fig 7: Removing Transmission Cross-Member
G00374755Courtesy of BMW OF NORTH AMERICA, INC.
Fig 8: Unlocking Plug
G00374743Courtesy of BMW OF NORTH AMERICA, INC.
Fig 9: Inserting Special Tool In Seating Sleeve
G00374744Courtesy of BMW OF NORTH AMERICA, INC.
Fig 10: Disconnecting Transmission Fluid Cooler Lines
G00374748Courtesy of BMW OF NORTH AMERICA, INC.
Fig 11: Releasing Torque Converter Screws
G00374750Courtesy of BMW OF NORTH AMERICA, INC.
Fig 12: Preparing Special Tool (24 4 161)
G00374756Courtesy of BMW OF NORTH AMERICA, INC.
Fig 13: Inserting Special Tool (24 4 160)
G00374757Courtesy of BMW OF NORTH AMERICA, INC.
Fig 14: Locating Transmission-To-Engine Screws
G00367889Courtesy of BMW OF NORTH AMERICA, INC.
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