I don't know the specs of what the did .but they had it in for over a week to sort it. There was at least 6 empty bottles of oil and lots of pizza like boxes in the boot when then returned the car to me . They told me that after the car has has a gearbox software update that the...
i have same car and same colour. i owned my car for approx 3 months before mine starting to do the same . it went back under warranty for a gearbox service and software upgrade . total cost was £2389 . hope this helps buddy . never mist a beat since then matey