BMW Cars 1999-06

Hydraulic Unit

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Removal & Installation



  1. Disconnect the negative battery cable.
  2.  
  3. Disconnect and plug the hydraulic brake lines at the unit. Do not mix up the brake lines. The lines are marked as follows:
    1. VL-LF Brake Caliper
    2.  
    3. VR-RF Brake Caliper
    4.  
    5. HL-LR Brake Caliper
    6.  
    7. HR-RR Brake Caliper
    8.  

  4.  
  5. Remove the cover mounting bolts and lift off the cover.
  6.  
  7. Disconnect the electrical connections and plugs.
  8.  
  9. Loosen the mounting nuts, pull up and remove the hydraulic control unit.
  10.  

To install:

  1. Position the hydraulic control unit in place, then install the mounting nuts.
  2.  
  3. Attach the electrical connections and plugs to the control unit.
  4.  
  5. Install the cover.
  6.  
  7. Attach the hydraulic lines to the hydraulic control unit. Make sure attach the proper line to its terminal on the control unit.
  8.  
  9. Connect the negative battery cable, then bleed the brake system.
  10.  

 
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