MG ZS EV 2024 charging port door won't open (dead 12V)

What....So they need to sit and monitor the computer because otherwise it will time out ?
:)
I was told this when I asked about the Tesla fix. A tech has to monitor the process. They even wanted me to pay for a second tech if I had it done at the 2 year service. I think you can probably guess my reply.
 
What....So they need to sit and monitor the computer because otherwise it will time out ?

I would have imagines that it was like with a windows install, you start it and every 10 minutes you just press "Continue" and then it would do it, by itself and if you left it for 1 hour it would still happily continue after you pressed the button.

This method is so archaic, especially when other manufacturers have been able to update every bit of the car Over the air for longer than the ZS EV have been around. :)
You don't have to sit & monitor for the whole time. In fact MG are quite good from what my dealer tells me but all cars require monitoring with interaction at various stages during the process otherwise the car will stop & wait for the next instruction & will disconnect from the main central computer if not done within a fixed period of time.

I would not describe the current update service as archaic. It's one followed by every manufacturer. It's safe which is what manufacturers seek. I am not aware of any manufacturer who currently allows their cars to update critical systems over the air. Firstly it could take a long time due to bandwidth issues & secondly it's simply not reliable enough & can brick a car if anything goes wrong. Of course, our cars & others receive certain updates over the air but these are not critical updates. For example, my own car received new map updates over the air a few days ago. This occurred after doing a system hard re-set to try to cure the issues the car was having. Next day upon start up the map updates were waiting for me. It all worked rather well.

From my own experience in the trade it looks to me as though MG are much more advanced than many other motor manufacturer regarding EVs. And more advanced than many people give them credit for. Of course, they get issues like everyone & nothing is ever perfect. But by comparison to Peugeot & Citroen & particularly their EVs, MG are streets ahead. Much more reliable & largely trouble free by comparison.

UPDATE: my neighbour who has a Tesla tells me he thinks some critical updates are available for that car over the air as hmadsen indicates. He's a tech & like me was surprised by this.
 
Last edited:
Ok, just an update regarding the 12V battery & the ZS's ability to charge this battery.

I can now be completely clear on this. THE 12V BATTERY IS CHARGED on the later MG ZS EV's when the vehicle is parked & switched off. Not only has my dealer confirmed this, I have also checked the car owners manual which states very clearly (page 9) that the car will intelligently charge the 12V battery when the car is switched off.

I say to hmadsen, check your manual.

I have witnessed my car do this at least 4 times. My friend also with the same car has noticed his car do this too. There is no doubt about it. If someone's 12V battery hasn't been charged, you may have a fault which has caused the intelligent 12V charging to stop or fail to start, as per what the manual says.

I do not know if this applies to some earlier cars or if this is just the MK2 ZS LR TROPHY CONNECT EV's. Mine is a later 2024 model purchased January 2025. Although I'm running the very latest software for the BMS & every other module, my car still charged the 12V battery with its older software. So this isn't happening due to any upgrades the car has had. I do not know if there is an upgraded software to allow other cars to charge their 12V battery also. Hoping this helps others to be more certain about the situation.

FURTHER UPDATE: The MG EV forum Podcast covered this 12v battery charging issue last August where Miles from Chorley MG group stated that the most common cause of 12v batteries going flat is due to one or more of the cars 6 ECUs failing to go to sleep causing a considerable parasitic drain. This causes the cars intelligent 12v battery charging to fail/stop. This is to protect the main traction battery. Of course there are other things that can cause a parasitic drain too. If this happens more than once it's worth checking with your dealer for a software upgrade which will make sure the ECU's go to sleep.
 
Last edited:
We have a gen 1 MG ZS EV, there is a cable inside the bonnet to open the charging port if the electric lock fails.
It seems odd that MG would have deleted that cable.
Have a look on the right hand side of the engine bay for a cable.
Pete
 
You don't have to sit & monitor for the whole time. In fact MG are quite good from what my dealer tells me but all cars require monitoring with interaction at various stages during the process otherwise the car will stop & wait for the next instruction & will disconnect from the main central computer if not done within a fixed period of time.

I would not describe the current update service as archaic. It's one followed by every manufacturer. It's safe which is what manufacturers seek. I am not aware of any manufacturer who currently allows their cars to update critical systems over the air. Firstly it could take a long time due to bandwidth issues & secondly it's simply not reliable enough & can brick a car if anything goes wrong. Of course, our cars & others receive certain updates over the air but these are not critical updates. For example, my own car received new map updates over the air a few days ago. This occurred after doing a system hard re-set to try to cure the issues the car was having. Next day upon start up the map updates were waiting for me. It all worked rather well.

From my own experience in the trade it looks to me as though MG are much more advanced than many other motor manufacturer regarding EVs. And more advanced than many people give them credit for. Of course, they get issues like everyone & nothing is ever perfect. But by comparison to Peugeot & Citroen & particularly their EVs, MG are streets ahead. Much more reliable & largely trouble free by comparison.

UPDATE: my neighbour who has a Tesla tells me he thinks some critical updates are available for that car over the air as hmadsen indicates. He's a tech & like me was surprised by this.
I have a Elon-car and i can assure you it has received every single update OTA and even though they have had a few recalls they have all been done via the OTA procedure, my car is just over 2 years and it has yet to have its first visit to an Elon repairshop (Incidentally it is going to them in a week, but that's only to have a few warranty related issues fixed because if has just about run out of warranty covered miles :) )

ChatGPT (could be wrong) says that Tesla, Rivian, Lucid, Polestar, Volvo, GM (Selected vehicles), Ford Mustang, all Nio and all Xpeng cars, all have the ability to update every onboard module via OTA.

It seems that even the new MG S5 only has OTA for infotainment and telematics and we all know what that means...Atleast in regards to the ZS EV, that has it, but even though there has been numerous updates to the infotainment software, they never did it via OTA.

So in my opinion MG is not "ahead", not even in the Chinese market, from which Polestar, Volvo, Nio and Xpeng all originate.

Just to clarify....When there is a software update on my Elon car, it will automatically download it when connected to wifi (In my driveway) and when it has downloaded the update, it will prompt me that there is an update, in the app and i can then apply it now or schedule a time to do it.

If i select to start "now" it will say " Car will be undrivable for XX minutes while the update is performed" and i have to acknowledge that before it starts.

It typically takes between 30 and 50 minutes and i get another notification in the app, when its ready again.

I only do updates in my driveway, but i have never had an update fail me and i have received over 20 updates over the course of these 2 years.

Notable mentions about functions is, a year ago, they updated the headlamps to do matrix lights and just recently they activated a radar (That no one knew were there) in the headliner just behind the roof light, this radar is now able to detect if someone was left in the car, even able to "see" through the seats into the backseat. If it detects someone in the car (Forgotten child f.ex) it will send a message to the app and if the temperature gets above a certain setpoint it will automatically run the AC (I presume the same if temperature gets too low).

I'm not trying to knock the ZS EV, its a great car at the price we paid, but it is lacking and the fact they sold it as "Can be updated OTA" and then sent exactly 0 updates IS a bit poor in my mind.
 
That's very interesting hmadsen. I base my opinions about MG on a lot more than whether they get OTA critical updates. ChatGPT isn't quite right but clearly OTA is how it's going. Unlike you, I have had OTA updates. You clearly haven't needed them yet as yours was updated at the dealer before purchase. Mine car was not. Updates are not required that often. It's not a windows computer!! It's usual for dealers to check at service times for any updates for the car & automatically install them if available. My dealer does this. And do check your MG owners manual, it will charge your 12v battery when it's turned off!
 
Last edited:
That's very interesting hmadsen. I base my opinions about MG on a lot more than whether they get OTA critical updates. ChatGPT isn't quite right but clearly OTA is how it's going. Unlike you, I have had OTA updates. You clearly haven't needed them yet as yours was updated at the dealer before purchase. Mine car was not. Updates are not required that often. It's not a windows computer!! It's usual for dealers to check at service times for any updates for the car & automatically install them if available. My dealer does this. And do check your MG owners manual, it will charge your 12v battery when it's turned off!
Hi Data, I'm really interested to hear more about your OTA updates. I have a ZS LR (Portuguese), bought 3/24 and have received no OTA updates, despite trying.
 
Hi Data, I'm really interested to hear more about your OTA updates. I have a ZS LR (Portuguese), bought 3/24 and have received no OTA updates, despite trying.
Chris, it's not unusual to not get any updates. Your dealer should have updated your car before you took delivery. Most dealers do this as part of the pre-delivery inspection before you take delivery of your car. That means you are unlikely to get any further updates just yet. In fact it may be at your next service before you get any at your dealers. Always ask for an update check when it's in for service. All good dealers will do this anyway but ask also!

In my case my car somehow missed getting it's updates at pre-delivery inspection. My car had really quite old software. So I did get new maps software updates OTA. However, due to some warranty work that my car needed my car ended up getting completely new software. So I won't be expecting any further updates for quite some while. Probably not untill next service. Remember, these cars don't need updates like your Windows computer!
 
Support us by becoming a Premium Member

Latest MG EVs video

MG ZS EV Retrospective & First Look at the MGS5 EV | Live Q&A with Owners & MGEVs Panel
Subscribe to our YouTube channel
Back
Top Bottom