Originally Posted by BTM
Which is what circles many of us back to the notion that it is not faulty pumps, rather something is causing pumps to fail in some cars. Odds are against cars with repeated replacements getting faulty pump after faulty pump after faulty pump - to me this says something is causing the pumps to fail, not the pumps keep failing. Especially considering there are many early build original pumps still out there, some with 50, 60, 70k on them.
+1.... it is logical to think that It's gotta be something else somewhere in the system causing the failures... I have a mid 2007 build 335i with 41k miles and the original HPFP... not a single sympom to date (knock on wood).