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I'm curious to know if anyone out there has throughly researched this issue? I researched the nhtsa site and service bulletins. It appears there was some discussion of putting a smaller pulley on the alt to increase the rate of charge on the battery. Has anyone done this and did it help? I'm not sure if this problem correlates to e32's driven mostly in town (i.e. stop and go) or those driven long distances. This seems to be a problem for some e32's and not others.
Thanks,
Victor
1988 e32 735i