E46Fanatics - View Single Post - 323Ci (M52tuB25) to M54B30 Complete Conversion, with MS43.0 DME and Drive By Wire
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Old 02-14-2018, 11:40 AM   #68
shm21284
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Join Date: Mar 2009
Location: Charlotte, NC
Posts: 259
My Ride: 323Ci M54B30 / MS43
Quote:
Originally Posted by jwads View Post
Question on the fuel system. I'm preparing an M54B30 o swap into an M52TUB25 wagon. I see the fuel filter is different w pressure regulator integrated. What line needs to be run that i don't already have? Is it PN 16126752186


This writeup is super helpful too so thanks for putting in the effort OP.

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OP here. I did convert to the MS43 fuel system. Regarding the fuel lines, I was able to reuse and adapt all my MS42 fuel lines. A little flexing and some new rubber lines and it was good to go. No need to replace the plastic hard lines. On the MS42, there are two rubber lines that run to the engine (feed and return). You can reuse one of these for the MS43 system, which has only a feed line to the fuel rail.
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