BMW 318/325/M3/525/535/M5 1989-1993 Repair Information

Brake Force Regulator Valve

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See Figure 1



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Fig. Fig. 1: Brake force regulator valve

REMOVAL & INSTALLATION



  1. Disconnect the negative battery cable. Draw off hydraulic fluid from the master cylinder with a syringe or hose used only with clean brake fluid.
  2.  
  3. Disconnect the brake lines at the top and bottom of the proportioning valve.
  4.  
  5. Remove the clamp from the valve and disconnect the pressure connection at the union.
  6.  
  7. Check day/year codes, reduction factor, and switch-over pressure to make sure the new valve is identical.
  8.  
  9. Install in reverse order. Bleed the system.
  10.  

 
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