BMW Coupes and Sedans 1970-1988 Repair Guide

Front Wheel Drive Hub and Bearings

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REMOVAL & INSTALLATION



A number of special tools are required to perform this operation. Read through the procedure and procure these before attempting to start work. Factory part numbers for tools are given, but it is possible to shop for equivalent tools, using these part numbers, in the aftermarket.

  1. Raise the car and support it securely. Remove the output halfshaft as described in this section. Then, remount the control arm with nuts just finger-tight, to keep the spring strut in position.
  2.  
  3. Remove the upper and lower attaching bolts and the brake caliper, suspending it nearby with wire.
  4.  
  5. Remove the Allen bolt and remove the brake disc.
  6.  
  7. Bolt special tool 31 2 090 or equivalent to the knuckle with its 3 bolts. Then, mount 33 1 307 hooked around the tie rod arm and press the drive flange off. If it is scored, pull the bearing's inner race out of the drive flange with 33 1 307 and 00 7 500 or equivalent.
  8.  
  9. Compress the snapring with snapring pliers and remove it.
  10.  
  11. Remove 31 2 090 or the equivalent and replace 33 1 307 or its equivalent with a tool such as 31 2 070. Again install and use the combination, this time to press out the bearing.
  12.  
  13. Screw out the spindle of 31 2 090 and install 33 4 032 or equivalent so it is flush with the surface of 31 2 090. Use 33 4 034 and 33 4 038 to pull in the new bearing. Then, remove 31 2 090.
  14.  
  15. Install the circlip again, with snapring pliers, making sure the open end faces downward.
  16.  
  17. Pull the drive flange into place with 33 4 032 or equivalent, 33 4 038 or equivalent, 33 4 045 or equivalent, and 33 4 048 or equivalent.
  18.  
  19. Install the brake disc and caliper and the wheel in reverse order.
  20.  

 
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