Recent content by MickeySw

Every Lithium battery degrades with usage, that’s why car manufacturers fit packs with (for example) 105% capacity but cap the usage to 100%. If you see a SoH of 99% it actually lost 6%. It’s quite telling that only a few PFL SR models show ‘no degradation’ for years, therefore supporting the...

Looks like one of the HV battery cells has lost capacity, unfortunately it’s the weakest cell that determines the performance of the whole pack. Usually a faulty cell’s degradation will accelerate with use but I doubt it will go below the 70% mark in the next two years..

That’s seems certainly on the low side, did you ever do a battery calibration charge (discharge to below 10%, let it settle for a bit, then AC charge to 100% in one go and then let it balance)? Might be no harm to do a hard reset (12V disconnect) before you start the process. Once fully...

Not much you can do wrong?? A kettle

Did a quick test, started the car, plugged in V2L adapter and started discharge function. Turned off the car and locked it, then unlocked it and opened the driver door multiple times, locked it again … V2L stayed active all the times?

Yes

CarScanner and the workshop diagnostic tool access the same information (the values on ours matched when it came back from the service) Unless yours is one of the few suspected SR models equipped with a ‘reject’ LR pack..

If yours is a SR model than this excellent result may be due to a therory that some were fitted with a ‘reject’ LR battery?

If V2L is active, the DC/DC (14V) is also operational even when the car is switched off, therefore a 12V extension into the boot seems the easiest solution? Just bear in mind that if the V2L stops for any reason in the middle of the night, you may end up with a flat 12V aux in the morning...

I would do a hard reset first, I.e. disconnect the minus terminal of the 12V aux battery. Reconnect it after few minutes, start the car and turn the steering wheel to both extremes to clear the errors.

If it specifically mentioned ‘only one service’ then MG will claim that ‘one should have known’ that this 2.5 year old car is no longer covered by MG warranty. I doubt that MG UK or any MG dealer will be capable (or willing) to re-instate the warranty given their after sale service’s...

When you say “MG” sold it, do you mean a MG dealer or MG UK? Was this ‘no warranty’ mentioned pre-auction?

That’s the odd thing, the LR’s motor is less powerful (on paper) despite the car being 40lbs heavier?

Turns out the motors are different between SR (Type 1) & LR (Type 2), interesting though, that the higher spec seems more efficient?

Note: there are many compatible dongles that work with the car scanner app but not all of them connect to a MG5, eZS is another option for Android devices. As already mentioned by @5teep, modern EV’s battery degradation rates are nowhere near their first generation predecessors and therefore...