Vehicle Control System Fault - caused by charger ?

MG update:

MG have responded that they have become aware of some rapid chargers causing issues with the new ZS EV. The UK engineers are in conversation with the Chinese engineers to overcome this situation. All they can advise is not to use the car on a rapid charge until a fix becomes available. They (like us) are confident the car will not experience any issues with any other output charger, it’s just rapid chargers causing the issue.



With information that you have shared with me, I know you need to use your car on a rapid charger and unfortunately you are amongst the first of the new ZS owners to highlight the rapid charging issue. At this moment I cannot advise when a fix will be available
 
Just had this vehicle system control fault from a grid serve @ north Strensham services. I have a 2022 ZS EV long range 2 months old: I just turned everything off and went and got some food when I returned it had gone away so I put the car back on a different charger and all seemed to be ok. I read elsewhere that this fault can occur from when the 12V battery is depleted and by leaving it for 5 mins with everything off and locked it fixes itself.
 
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Dominic said:
Just had this vehicle system control fault from a grid serve @ north Strensham services. I have 2022 zs ev long range 2 months old: I just turned everything off and went and got some food when I returned it had gone away so I put the car back on a different charger and all seemed to be ok. I read elsewhere that this fault can occur from when the 12v battery is depleted and by leaving it for 5 mins with everything off and locked it fixes itself.
Click to expand...
I had the same issue at the same charger yesterday, wish I’d read these posts first!
 
kiltox said:
Thanks for watching - I’ve never seen anyone else say that an AC charger has caused this issue so I’d be very interested to see how it goes for you.
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I had the same on my 2020 ZS when I didn't confirm the charge on a Tesco's Podpoint 7kW AC charger and the charger stopped the charge.
It seems the car doesn't like a sudden power cut.
I was wondering what the screen was showing when you disconnected the plug, i.e. was it still powered and did the sudden removal of the plug cause the issue ?
 
Kithmo said:
I had the same on my 2020 ZS when I didn't confirm the charge on a Tesco's Podpoint 7kW AC charger and the charger stopped the charge.
It seems the car doesn't like a sudden power cut.
I was wondering what the screen was showing when you disconnected the plug, i.e. was it still powered and did the sudden removal of the plug cause the issue ?
Click to expand...
Can you even remove a still powered plug?
 
I ran into this problem yesterday. Pulled into a charger and it kept starting for a second or two then stopped saying there was abnormal voltage or something. I put it down to a dodgy charger as it was the only one free when I arrived.

Moved to a charger next to it as the person that was charging fine was pulling out.

Plugged in, same thing the charger stopped after just getting started.

Only this time when I sat it all the lights on the dash were on. And the dreaded control system fault.

Had to call our recovery guy and he detached the 12V and reset it.

Very annoying if it is missing the software update. I bought it in July 22, and it was just in for it's first service with MG two weeks ago.

A car pulled into the first charger and charged no problem so it is definitely a car issue not a charger issue.
 
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Bubs said:
Very annoying if it is missing the software update. I bought it in July 22, and it was just in for it's first service with MG two weeks ago.
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Our Trophy LR was collected in mid March 22 and I know it missed the software update, because it was only released late March early June 22 I believe.
The car received its first service in late Feb early March 23 and then it received the update to the BCM module, which also now allows the car to be still unlocked and discharge via the V2L cable.
Prior to this, it would only allow discharge if the car was in ready mode.
 
I
Stuart74 said:
I had exactly the same errors appear a few weeks back.
Car was dead.
AA came and took it away on a flatbed back to dealer.
Many tests / checks were carried out in conjunction with MG UK.
All the checks came back fine and nothing could be found wrong on my vehicle.
MG UK called me after I got vehicle back and told me all they found was a tiny power spike from my home Wallbox charger.
The ZS had then cut off the control circuit via the 12v supply being made available to bring in high voltage system. This is to stop any damage to the HV. Batteries ( this is what MG told me ).
I was also told to reset this issue to remove negative cable on 12v battery and leave for 10 minutes then reconnect.
I have had no more issues and still have the same Wallbox charger.
I think it’s just one of these things
If it happens again I’ll just disconnect the battery.
MG UK told me that since the launch of the MG EV I was only the 6th car that had been reported with this fault.
I just carry a spanner now.
Click to expand...
I just experienced this issue, disconnected the 12V for about 3mins and reconnected. All back to normal.
Your post saved me and family hours of hassle and stress. Thank you!
 
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Had mine into MG, they did a bunch of updates. 5 or 6. They weren't sure if any of them would help as they were unsure what happened.

Bit annoying that it was in with MG for its service and they didn't do all the updates.

Note for anyone else putting it in for a service. Specifically ask them to check and update anything out of date.
 
Bubs said:
Had mine into MG, they did a bunch of updates. 5 or 6. They weren't sure if any of them would help as they were unsure what happened.

Bit annoying that it was in with MG for its service and they didn't do all the updates.

Note for anyone else putting it in for a service. Specifically ask them to check and update anything out of date.
Click to expand...
Good thing about this is that you have likely had the patching that fixes the issues on Tesla superchargers too
 
Happened to me at westbound Leigh Delamere Services at a Gridserve point. Called the RAC and went inside for a coffee and a Belgian Bun. Read some of the posts and decided to return to the vehicle and hold down the Start button. Got in all prepared to hold down the starter button but the vehicle started as normal with the brake pedal going down and not remaining rock hard and was able to move it from the charger. Cancelled the RAC and continued on my journey. No further problems.

I have taken note of all the solutions offered and will prepare myself for a repeat. Is there in fact an explanation for this beyond s**t happens?
 
Ian 2455 said:
Wasn't aware that I had that...
Click to expand...
If you service your car with MG garage, you get free cover for 1 year, there is a number to call to check whether you are covered. if not, ask your MG garage to update records and arrange it

UK Breakdown Assistance: 0800 072 3338 - it covers UK only

www.mg.co.uk

Roadside Assistance | My MG

In the unlikely event that something does, we provide a one-year roadside assistance package from the AA with all new MGs.
www.mg.co.uk www.mg.co.uk


Following on from your initial year's roadside assistance, when you take your car back to your MG dealer for every subsequent scheduled service, if you choose the option, you will receive a further 12 months’ MG Assistance free.
 
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fred12345 said:
If you service your car with MG garage, you get free cover for 1 year, there is a number to call to check whether you are covered. if not, ask your MG garage to update records and arrange it

UK Breakdown Assistance: 0800 072 3338 - it covers UK only

www.mg.co.uk

Roadside Assistance | My MG

In the unlikely event that something does, we provide a one-year roadside assistance package from the AA with all new MGs.
www.mg.co.uk www.mg.co.uk


Following on from your initial year's roadside assistance, when you take your car back to your MG dealer for every subsequent scheduled service, if you choose the option, you will receive a further 12 months’ MG Assistance free.
Click to expand...
Many thanks. I have not had the car for a year yet so I am still a way off from any service.
 
The MG service agents usually fail to re-register the car for a further year of AA cover.
However, when I spoke to AA (a couple of years ago) they said they responded to all calls from MG EV's.
 

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