This is a big discussion on the BMW e90post forum. This fix specifically handles the blow back that TT 335i and M models have. The problem is that at some point within 30K to 40K miles, the valves need to be blasted to remove the oil/carbon buildup (I had this done twice by BMW). This mainly occurs when you drive aggressively and increase boost to the upper range.
Unless you running a TT...Don't think we have the same issues. Would like to hear from any other members as I am thinking about installing the Oil Catch Can by BMS on my 335i .
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Last edited by SalA; 10-23-2012 at 02:31 PM.
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