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Old 02-13-2019, 10:24 AM
sgrice sgrice is offline
Join Date: Oct 2010
Location: Atlanta
Posts: 120
sgrice is on a distinguished road
So to confirm - the car runs fine if you fill up the fuel tank, but runs out of gas while showing approx 1/4 tank?

Assuming the above is true, do a google search for posts by andrew wynn on the anatomy of the e53 gas tank system, and the usual trouble spots. I don't remember off the top of my head, but there are frequent failure points that disrupt the capability of siphoning fuel from one side of the tank to the other. I seem to recall replacement of an o-ring usually solving the problem?

Good luck.
2010 e70 35d- now driven by son #2
2005 e53 3.0 - now driven by son #1
2018 G01 M40i - now driven by me
2008 ML320 CDI - driven by wife
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