So far it has been the early 2000's 323i and 325i. The one with the failed electric water pump was the 2006 330i. I've got a 545i in that I'l be changing these items on tomorrow as a preventive measure (120k miles). I'll let you know what I can tell in regards to the clearance in the brgs on these pulleys after I remove them. I suspect it is accross the board for the manufacturer though.

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Jim