How to set up your own INPA diagnostics computer for Z3 use (will work for other cars as well): A. Items needed: Windows capable laptop. I generally recommend Windows 7, but it will work fine with Windows XP, 8, 10, and the 'in-betweens'. 32-bit and 64-bit work fine. BMW K+DCAN cable, ideally with a switch. (This will work with most BMWs). More @Wikipedia
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