Thread: X3 3.0D MSport Auto Fuel Economy
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      04-25-2012, 06:19 AM   #9
deafwish
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Drives: 2006 X3 3.0d
Join Date: Aug 2011
Location: Melbourne, Australia

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Have you had your PCV valve inspected/ replaced?
They are renouned for causing excessive smoking/ over fuelling.
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