BMW X3 2005

Pinion Seal

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Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Remove or disconnect the following:

    The exhaust system
     
    The driveshaft
     

  4.  
  5. Remove the drive flange:
    1. Support rear axle carrier at front middle with workshop jack.
    2.  
    3. Remove nuts and remove compression strut.
    4.  

  6.  
  7. Before removing collar nut, mark drive flange (1) and collar nut (2) to driveshaft (3) with center punch or color marker pen.

    Click image to see an enlarged view

    Fig. Marking components before removal-drive flange (1), collar nut (2), driveshaft (3)

  8.  
  9. Brace drive flange with special tool 23 0 020 and release collar nut.

    Click image to see an enlarged view

    Fig. Using special tool 23 0 020 to brace drive flange

  10.  
  11. Remove drive flange with special tool 33 1 150.

    Click image to see an enlarged view

    Fig. Using special tool 33 1 150 to remove drive flange

  12.  
  13. Withdraw pinion seal with special tool 00 5 010.

    Click image to see an enlarged view

    Fig. Using special tool 00 5 010 to remove pinion seal

  14.  

To install:


NOTE
Check that no seal residue is left in the final drive.

  1. Drive in new pinion seal in as far as it will go using special tools: 00 5 500 and 33 3 390 or 33 3 470.

    Click image to see an enlarged view

    Fig. Driving new pinion seal into position

  2.  
  3. Clean end face of drive flange and apply a thin coating of grease.
  4.  
  5. Coat sealing lips of shaft seal and sealing surface of drive flange with differential oil.
  6.  
  7. Attach drive flange according to the markings made earlier.
  8.  
  9. Press on drive flange with special tools 23 1 300, 33 1 341 and 23 1 303, if necessary 23 1 302, until collar nut can be screwed on.
    NOTE
    Do not tighten down collar nut beyond marker points, made before removal, in order to avoid damaging the clamping sleeve.



    Click image to see an enlarged view

    Fig. Using press to install drive flange

  10.  
  11. Tighten down collar nut to point where marker points are aligned.
  12.  
  13. Drive in new retaining plate with special tools 00 5 500 and 33 3 480.

    Click image to see an enlarged view

    Fig. Driving in new retaining plate with tools 00 5 500 and 33 3 480

  14.  
  15. Install new self-locking nuts on compression strut. Tighten to 57 ft. lbs. (77 Nm).
  16.  
  17. Install the drive flange. Tighten to 47 ft. lbs. (64 Nm).
  18.  
  19. The driveshaft.
  20.  
  21. The exhaust system.
  22.  
  23. Refill the oil in the final drive.
  24.  
  25. Check for leaks.
  26.  

 
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