BMW Cars 1999-06

Overhaul

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The crankcase ventilation system is essentially maintenance free. There are no mechanical components that need to be adjusted, nor are there any parts that need to be replaced on a scheduled basis.

The only checks that can be made to the system is for plugged or cracked hoses and faulty connections.

  1. Remove the hoses from the connections and check for restrictions. If restricted or damaged, replace the valve
  2.  
  3. Inspect the hoses for cracking and replace as necessary.
  4.  

To install:

  1. Install in reverse order of removal making sure that the hoses are fully seated.
  2.  

 
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