BMW X3 2005

Transfer Case Removal & Installation

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  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:
    NOTE
    Automatic transmissions: Use special tools 00-2-030, 24-5-301, 24-5-305. Manual transmission: Support with hydraulic lifter.



    Negative battery cable
     
    Exhaust system
     
    Heat shield
     
    Front propeller shaft set aside and secure
     
    Propeller shaft nuts, bend shaft downward at center bearing
     
    Propeller shaft from transmission and tie aside
     

  4.  
  5. Support the transmission

    Crossmember
     
    Electrical connectors to servomotor
     

  6.  
  7. Support the transfer case. Remove the retaining bolts and remove the transfer case.
  8.  

To install:

  1. Check the condition of the dowel pins and replace if necessary.
  2.  
  3. Be sure the mating surfaces are clean.
  4.  
  5. Apply a thin coat of anti-seize grease to transfer case splines
  6.  
  7. Replace the sealing ring of the driveshaft of the transfer case.
  8.  
  9. Install the transfer case and torque the retaining bolts to 32 ft. lbs. (43 Nm).
  10.  
  11. Reposition the propeller shaft in the center support bearing and to the flange. Torque the center support bearing nuts to 15 ft. lbs. (21 Nm) and the flange nuts to 24 ft. lbs. (32 Nm).
  12.  
  13. Install or connect the following:

    Cable to transfer case
     

  14.  
  15. Install the transmission crossmember. Torque the bolts as follows:
    1. To rubber mounts: 55 ft. lbs. (74 Nm).
    2.  
    3. To body: 30 ft. lbs. (41 Nm).
    4.  

  16.  
  17. Install or connect the following:

    Electrical connectors to servomotor
     
    Propeller shaft and center bearing
     
    Reinforcement plate
     
    Heat shields
     
    Exhaust system
     

  18.  
  19. Refill the transfer case.
  20.  

 
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