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      12-20-2016, 04:15 AM   #5
M-terkait
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Drives: F30 335i 3/13
Join Date: Mar 2013
Location: Kuwait

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under intake manifold runner#1 the cloesest to front bumper, there is a vacuum pipe it could be loose and not fitted properly.
I had that problem when i removed my intake manifold and back. just a loose pipe i hope.

edit: not sure if Eseries are same as Fseries
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