I have a jerking/tugging when accelerating on my X5 40e - happens in both petrol and electric-only modes so I know it isn't a misfire/engine issue.
I thought it might be a gearbox issue but found out it could be the Transfer Case that needs a calibration (and possibly oil change).
Apart from that, I'm on 102,000 miles with no other issues - loving the X5 life!
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