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Message: <blockquote data-quote="wc9922" data-source="post: 406132" data-attributes="member: 6000">It ain't gonna matter much anymore if your cars had software updates or not. Been running for so many years without it.  There won't be much difference. Maybe very slight smoothness, maybe some electic modules will work a bit better (even when u can feel or see it), nothing ever so small a differrnce you can tell.  For Single Vanos Auto-Box Ecu software upgrades, if you can do it via Progman or GT1 let me know. So far  Only read parameters, states and ID only as far as I know, software update via ADS K line is not possible. something inside the box will not allow to do that.</blockquote>