Will this update benefit any year of the e65? I have a 2006 and don't have any harsh shift while slowing , 2-1. Occasionally if I step on it while doing 10-15mph the 2-1 downshift while under load feels harsh. I have everything in place to do the trans software update but want to know if this is good for all years or is it possible I will be rolling back my newer software.
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