E46Fanatics - View Single Post - **kpeng's Guide To Proper E46 Maintenance**
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Old 10-14-2012, 10:21 AM   #647
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Join Date: Sep 2011
Location: New York
Posts: 9,481
My Ride: '04 330Ci
def clean out that ICV is you're on the cheap. your labor is free. mine was only slightly dirty after 88K miles. cleaning did not make a difference.

not that well versed in CVV test as I just replaced mine with all four hoses 'cause I like to run new parts.
can search youtube and plenty here to find what you need.
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