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      01-24-2016, 06:49 PM   #6
Bossdog
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Drives: 2006 Z4MR Imola Red
Join Date: Jul 2015
Location: SE Michigan

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I've always been told to NEVER "power wash" your your engine! A garden hose spray is plenty of water power. Run your engine so its warm. Turn it off and cover anything electrical (and of course your filter as mentioned). Spray everything with Simple Green, let sit for a bit and rinse with a garden hose.
Yes, I get it, your just interested in hearing about possible supercharger issues.
But given the title of this thread, I thought I'd elaborate!

Best of Luck!
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