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Old 03-05-2011, 05:22 AM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
Join Date: Mar 2008
Posts: 25,236
Mein Auto: 02 BMW 525i M54 auto 130K
Originally Posted by rdl View Post
M52TU ... aluminum block with cast iron (ferrous) liners... M54... presumably has same
Thanks for that PDF (we should archive it somehow in an easily found way).

Because it's important to help others for this type of thread, I started trying to organize WHICH BMW engines have a non-ferrous cylinder liner and which have aluminum blocks or heads ... using that PDF plus wikipedia ... but it got so confusing ... that I just gave up at this point below ... Sigh.
  • 1997-1998 6-cyl M52 engine: block=iron, liners=iron, head=aluminum
  • 1999-2003 6-cyl M54 engine: block=aluminum, liners=aluminum, head=aluminum
  • 1998-2001 523i engine=M52TUB25 block=?, liners=?, head=?
  • 1998-2003 520i engine=M52TUB20 block=?, liners=?, head=?
  • 1995-1999 520i engine=M52B20 block=?, liners=?, head=?
  • 2001-2003 520i engine=M54B22 block=?, liners=?, head=?
  • 2001-2004 525i engine=M54B25 block=?, liners=?, head=?
  • 2003-2005 530i engine=M53B30 block=?, liners=?, head=?
  • 1994-2005 540i M62 engine, block=aluminum, liners=aluminum, head=aluminum
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