Apparently the fix boils down to a software fix, but it is apparently serious enough to issue a stop order:
https://www.carscoops.com/2018/06/bmws-recalls-new-m5s-faulty-fuel-pumps-issues-stop-sale-order/
https://www.carscoops.com/2018/06/bmws-recalls-new-m5s-faulty-fuel-pumps-issues-stop-sale-order/