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Old 02-04-2013, 07:41 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
Based on careful reading of the Turner Motorsports advertisements above, it seems they're implying that only the "early M50 & M52" engines 'may' have had plastic impellers - after which BMW quickly switched to composite impellers (note: the aftermarket has always had the metal impellers).

Assuming this statement by Turner Motorsports is true, then the only remaining question to answer the OP's question is the following:
QUESTION: What E39 models used the "early M50 and M52" engines? (i.e., these would have had plastic impellers originally, but which would have quickly switched to original composite impellers.)
Please read the suggested threads and add value, either by pictures or by descriptions, so the next person stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need

Last edited by bluebee; 02-04-2013 at 07:48 AM.
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