I've been reading about this new technology BMW are using in their dealerships, re-training their technicians regarding their e-mini,i3,i4,i8 BEV's.
Blimey! mechanicing has changed a lot from repairing a car with a oily haynes manual in one hand & a spanner in the other
https://www.forbes.com/sites/charlie...t#7e2ec6136da3