Well, just recovered this in from another garage for diagnosis, gearbox is a 7 speed auto. Banging, clanking, going backwards in drive, missing gears, no fault codes, customer told it needs a new gearbox, ran through everything and checked live data, proceeded to do a clutch pack calibration and bingo we have cured the issues and she drives perfect again. If you get an Auto don’t be scared, have a go I’ve just saved this old lady her car and 8k