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Old 12-05-2012, 07:44 AM   #719
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Join Date: Sep 2012
Location: Old Greg's Cavern
Posts: 12,606
My Ride: '13 128i, '04 330Ci
Originally Posted by Troichka View Post
Has anyone vacuum filled their cooling system? Any problems issues with doing that?
I would not do it. The ET is designed for positive pressure and so is the rest of the system. I'm sure a slight vacuum wouldn't hurt it, but why risk it. The regular bleeding method works perfectly.
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