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N52/N51 Vaccume Line Replacement
I'm pretty confident I have a vacuum leak and it's causing some of my rough idle issues. Considering they are all original and my car it at 155,xxx miles, I might as well get it done. I can't seem to find a reliable DIY or guide for this. Does anyone have any links that would be of use? As well as what size I should purchase? Thank you.
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2011 E90 328i, 1995 E34 530i, 1992 E32 740i, 1991 E34 525i
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