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      12-27-2014, 07:14 PM   #6
saintex
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Canada
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Drives: Z4MC BSM E92 335xDrive BSM
Join Date: Nov 2008
Location: Canada

iTrader: (-1)

Yes there is a secondary air pump in the S54 but in the DTM Z4M the bulk of the corner space was taken up by the oil tank for the dry sump system...

like here page 4

http://resource.bmwusa.com/Pdf_07298...149c245b4.arox
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