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      01-13-2014, 01:57 AM   #1899
swamp2
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Drives: E92 M3
Join Date: Sep 2006
Location: San Diego, CA USA

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For completness sake here is some reference material on the European Union ELV (End-of-Life Vehicles) Directive and how it relates to the S65 rod bearing change.

This is relevant as the initial (088/089) S65 rod bearings used a lead based compound whereas the newer (702/703) are a lead free design. The initial directive, way back in 2000, was simply to reduce the quantity of waste and hazardous waste that occurs when motor vehicles are junked or totaled. The reason the part changes at BMW occurred in 2011 is because many exemptions were included where the use of certain hazardous materials were industry critical and without viable alternatives. Lead bearings fell in this category.

According to this summary information here bearing shells in engines were exempt until July 1, 2011. On a loosely related point lead in valve seats were only exempted until July 1, 2003.

Thus E9X M3s with a production date after July 1, 2011 almost certainly do not have 088/089 rod bearings but instead have the 702/703.
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