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      03-20-2012, 11:49 AM   #64
AlanAZ
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Drives: E90 325i sport manual
Join Date: Aug 2009
Location: Scottsdale, AZ

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I did it as preventive maintenance, wanting the solenoids to last as long as possible, 150K mls? I do have 80K mls, and they are mechanical, so cleaning them now seemed to be a good idea.

Plus I changed to a 0 cold weight oil (M1 0w40), changing twice as frequently as the original owner, and that will help keep them clean going forward. Does seem a bit stronger mid-high rpm. All it cost was some time and MAF cleaner, and with this DIY it's dead easy to do.