H3 2006

Hydraulic System

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Hydraulic System Bleeding




NOTE
DO NOT use fluid which has been bled from a hydraulic clutch system, in order to fill the clutch master cylinder reservoir, due to the possibility that the fluid may be aerated, have too much moisture content, or be contaminated and may cause system or vehicle damage.


NOTE
Perform the hydraulic clutch bleeding procedure with the aid of an assistant.

  1. Ensure the reservoir is filled to the fill line with new hydraulic fluid. Add fluid if required from a clean sealed container.
  2.  
  3. Stroke the clutch pedal from the up stop to the down stop position at least 15 times.
  4.  
  5. With the pedal in the down stop position. Open the bleeder valve to release the trapped air.

    Click image to see an enlarged view

    Fig. Open the bleeder valve (1) to release the trapped air; clutch hydraulic hose quick connect fitting (2)

  6.  
  7. Close the bleeder valve and slowly return the clutch pedal to the up stop position.
  8.  
  9. Open the bleeder valve and slowly depress the clutch pedal from the up stop to the down stop position until fluid escapes through the bleeder.
  10.  
  11. Close the bleeder valve.
  12.  
  13. Return the clutch pedal to the up stop position.
  14.  
  15. Depress the clutch pedal from the up stop to the down stop position.
  16.  
  17. Open the bleeder valve and allow fluid with air bubbles to escape through the bleeder valve.
  18.  
  19. Close the bleeder valve.
    NOTE
    Always make sure that the clutch fluid reservoir remains filled with new clean hydraulic fluid.

  20.  
  21. Repeat steps 7-10 until fluid without air bubbles escapes through the bleeder valve.
  22.  

 
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