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It is a bit more complicated as some need nothing, some need a software upgrade and some need new hardware and software. See here: Tesla Supercharger Issue MG5 LR Skip to the end ish for the latest position.

Looking more and more like a charger billing fault of some kind.

Absolutely right as at that point, the maths take into account the phasing etc. We don't know if the readings are for DC or AC. AC and you are correct. DC and the on screen calcs are correct. Either way it is not right as it doesn't agree with the car or the bill! Faulty EVSE is most likely...

Quick disconnect for MG5 battery Cost about 70p IIRC. I also fitted a loop to extend the manual plug release just in case.

That is true for calculating the overall 3 phase load but 3 phase in the EVSE is handled as 3 separate single phase supplies going into a 3 single phase chargers that then combine their outputs in a single supply. There is nothing to state that the supply must be equally shared. It may not be a...

One less theory to worry about then! Scrub that. The only thing I can think of is a fault with the charger unit in some way as it definitely not displaying what I would expect an AC charging session to be. It looks like you have been charged at the DC rate it was showing.

They might but that is not how they should work. To meet the standards the EVSE has a current sensor on each phase and that provides independent current values which they can add up to create the total. You can't have a single overall value as you don't know which phase is being naughty. I...

This looks like another issue. What isn't right is 400v for an AC charge? Normally on an AC charge the voltage is not quoted as it is basically 240v mains, even with a three phase connection. Three phase is normally 415v anyway. That data looks like a DC charge. It is as if the Genie was...

There might well be, trying to see if I can get the info through the OBD port at the moment. Not getting far at the moment. The EVCC gets data from all over the car to work out how the charging is negotiated and adjusted depending on if it is AC or DC. So variations may well play a part. As...

Excellent, you are now the holder of the earliest upgradeable build date award. I'll add it to my list and thanks for posting this. It is all adding to the knowledge.

Probably a good position to take. As you can probably gather, the members on here have been piecing what is reality from limited data and while some of the omens are good, we don't know if there are other factors involved. Thanks for the EVCC info - that is another piece of the jigsaw.

Just found my OBDWan CANobi star wars kit so will be having a look later. One is definitely the ECU supplier firmware revision and the other is a YAPN - (yet another part number) . Yes I think you are right as we have some cribs to use to find the data. I'll have a think on how we could...

Added to my list. That is the earliest (so far) to have been successfully upgraded! Current running total in the MG5 lottery: 11170476 11182835 11313393 have been upgraded successfully. Still no sign of the MG list numbers. The build dates for these range from 210606 to 220621 which does...

Is it only sites with 13 chargers? Very spooky if it is.... It may also be the type of supercharger. All work with a Tesla but type 2s are not open, type 3 are open with hardware and software upgrades and type 4 should be open to all. Haven't seen any sites with mixed charger types though. You...

To be honest no one really knows anything at the moment as there is so much confusion about what is and what isn't. It is a FL car so should be free.

I collated a list of numbers from here and other sources to get an understanding of what is going on. Those 3 numbers have not appeared on any of the units I and others have documented. On an MG5, the evcc is next to the battery but the label is facing the battery and it is hard to see what is...

I know a lot about these systems to know that suggestions that it is 100% one parties problem is a gross over simplification. I know how these systems are designed and built and I know that no ccs system is completely compliant and free from errors. I know how to build a complient system that...

Not a rant. I have calmed down. Bit of an explanation. I've had an EVSE suddenly change behaviour after an upgrade that broke a car's charging system. Was car specific. Customer blamed the car. Actually the customer used the other cars work but yours does not argument and it did get a bit...

No problem with point of view that it should be free. Major issue with people who state things that are clearly not true to try and justify it.

No the bottom line is none of them are true. No it caught out other manufacturers as well as MG. This option is not the case as it ignores the other manufacturers and cars that experienced similar problems. The dogmatic approach that only MG have had problems has no foundation. It can be...