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      01-06-2013, 05:56 AM   #94
CPV
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Australia
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Drives: BMW 335is
Join Date: Oct 2011
Location: Brisbane AUS

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Garage List
2007 BMW 335i  [0.00]
I had a 30FF underboost code as well on my 07 N54. 1 of the vacuum lines behind the oil filter was the culpit. I changed them all over myself. Cost $10 and 1 hour. Easy job...