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      11-23-2012, 10:44 PM   #9
vasillalov
Mad Linux Guru On The Loose
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Drives: 2008 335i Sedan
Join Date: Aug 2009
Location: Chicago, IL

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2008 335i E90  [4.00]
Old news. Mr.5 did a DIY fix on this. There is a rubber grommet in that attaches the brake booster to one of it's vacuum lines. It is in a VERY tricky position. When the grommet stops sealing correctly around the vacuum line, you get a slow vacuum leak. Overnight, your brake pedal becomes hard. Ultimately, if this is left unchecked for a very long period of time, it will cause vacuum issues at idle and during deceleration.

The solution is very cheap: $5.00 for a new gromet and a case of beer for the guy with a set of midget hands to have it replaced. I sure as hell can't fit my hands in that spot.


EDIT: It was not Mr.5 after all:

http://www.e90post.com/forums/showthread.php?t=589753
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Last edited by vasillalov; 11-23-2012 at 10:49 PM.