Recovered to dealer - System fault.

[5teep]

Should but won't perhaps. One 50kW charger near me (Engie/Chargepoint) would never go above low 20s whatever the conditions or your SOC.

I'm driving a peugeot e2008 pos meantime and I use this charger all the time. It charges at top rate, 53kwh on that car so pretty confident the MG has an issue not the charger.

As I said some of the 50KW chargers actually cannot output that with a lot of the cars, what I'm suggesting is there's quite possibly nothing wrong with the car and you were running into a limitation of that particular charger.

I guess the only way to be sure would be to get a lowish SOC and go find a 150 or 350kw charger and see what you get on that*

*that said I've seen the 350kw gridserv ones get into a state where they won't supply more than 31kwh (usually cable cooling failure) so even that's not guaranteed.

Trust me, I know my car, I've driven it for over 55k miles and charged hundreds of times on CCS.