Charging Issue MG4
Has anyone experienced an intermittent AC charging fault on a 2023 MG4 Trophy Long Range?
About six weeks ago my car started repeatedly stopping during AC charging. It happens on my home Ohme charger and also happened on multiple public 7 kW AC chargers, so it doesn’t seem to be specific to my home setup.
What I’ve ruled out so far:
Tried two different Type 2 cables.
Same issue on home and public AC chargers.
DC rapid charging works perfectly every time.
The dealer had the car this week, applied a software update and told me they’d tested it on a 7 kW charger and the issue was fixed.
Unfortunately, it isn’t. The first overnight charge afterwards was plugged in for 9h 51m but only delivered 0.94 kWh (“There was a hiccup” in the Octopus app).
I then tried Ohme Boost/Max Charge. It charged normally for 1h 17m and delivered 8.4 kWh before stopping unexpectedly at around 22% SOC. It didn’t restart by itself, and I had to manually restart charging.
The fault is intermittent - sometimes it will charge for a few seconds, sometimes for over an hour, but it eventually stops before reaching the target charge.
Has anyone had similar symptoms? If so, what was the eventual fix? I’m particularly interested to know whether it turned out to be the onboard charger, charge port, software, or something else. The dealer is looking at it again, but I’d like to go back armed with any ideas from people who’ve experienced the same issue.
Thank you.