High Voltage Battery failure?

Gaz64

Novice Member
Joined
Sep 19, 2025
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Location
preston
Driving
MG3 Hybrid+
I have 5 month old MG3 hybrid+ and i have to say up until this issue i was happy with it.
I moved to the Motability scheme and the MG from a remapped Mk5 Mondeo TDCI putting out 220 Bhp.
I was really pleased with the performance of the MG from the start and other than an issue i had with multiple systems going offline (software updated in June) i have had no issues until now.
I hadn’t realised that the power didtribution screen had disapeared off the menu on the display, linked i think to this is the High voltage battery not charging.
Luckily (or not) I started using the MG app and could follow the battery charge state.
Over the last week I have seen it go down from an already low 30% to 21, 17, 10 and now 8%. MG can get my car in on the 20th october by which time it would be in negative figure if that were at all possible.

Has anyone else had an issue like this?
 

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I have 5 month old MG3 hybrid+ and i have to say up until this issue i was happy with it.
I moved to the Motability scheme and the MG from a remapped Mk5 Mondeo TDCI putting out 220 Bhp.
I was really pleased with the performance of the MG from the start and other than an issue i had with multiple systems going offline (software updated in June) i have had no issues until now.
I hadn’t realised that the power didtribution screen had disapeared off the menu on the display, linked i think to this is the High voltage battery not charging.
Luckily (or not) I started using the MG app and could follow the battery charge state.
Over the last week I have seen it go down from an already low 30% to 21, 17, 10 and now 8%. MG can get my car in on the 20th october by which time it would be in negative figure if that were at all possible.

Has anyone else had an issue like this?
Where the 2 dots are is where the remaining fuel should be in 83 miles like in your attachment if you look directly above you can see MG3 if you press the icons next to MG3 it should refresh the screen and re show the mileage the 8% showing should be the percentage of fuel remaining that's how mine works on the i smart app
 
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