Checking whether the PD052 update has been installed.

[Jockster]

The same here, I wrote to MG EU but they refuse to acknowledge a problem just saying again that it’s the nature of the engine, which yesterday was revving at 5.5k up a shallowish hill!!

I am having the same nil return from MG. Revs calming down a bit.

 

[Hybrid Ann]

I've had no such update. I do get some over revving but it neither affects the drive generally or overtaking. I have never lost power and the car overtakes promptly and smoothly. Long may it continue.

 

[Noel]

Hi Ann. Much the same as mine, but as there are no long hills in the part of Sussex I live in, I never experienced the problems that have affected others. When mine went in to have the N/S door mirror light strip replaced, which didn’t happen due to `MG sending the wrong part, they did the PD052 update anyway, and the car is quite different now.
I thought it was worse, but after a few days I got used to the way the hybrid now operates, and hopefully, if I ever encounter long/steep hills, the car will not drain the battery, and cause the problems others have reported.

 

[Jockster]

Ca.me across this. It explains ( quite slowly) the hybrid +

 

[mcishere]

Letter to
MG UK Customer Service UK
FJ Chalke Dealership

I am writing to express my significant concern regarding a serious issue I have experienced with my new MG ZS Hybrid+, which I purchased from FJ Chalke on 6/5/25 and not being informed about this issue.

My vehicle registration number is WG25

I have owned the vehicle for only six days, and I have already encountered a worrying pattern of over-revving. 5000rpm in one instance when driving uphill. During these instances, the engine revs excessively, and alarmingly, the vehicle loses power. This loss of power, especially while ascending hills, feels unsafe and is causing me considerable concern about the vehicle's drivability and safety and with the deceleration from 60 mph to 30 mph and no why of over coming this could cause a head on collision.

This issue is persistent and occurs regularly when the car encounters an incline. The combination of high engine revs without corresponding power output is not only concerning from a performance perspective but also raises questions about the vehicle's mechanical operation. The feeling of the car losing power during these moments is particularly unsettling and makes me feel unsafe while driving.

I request an urgent investigation into this matter. I would appreciate it if both MG UK and FJ Chalke could take this complaint seriously and advise on the necessary steps to diagnose and rectify this fault. I would like to understand what might be causing this behaviour and what actions will be taken to ensure the safe and reliable operation of my vehicle.
If this cannot not be rectified.
Then I would have no other option but to request a full invoice refund. Wrote to dealer and MG awaiting reply’s

 

[Busman]

Did you not read this forum before you took collection of the car.The Much spoken about PD52 update to be precise.The car is a 3 speed automatic and takes time getting used to it's quirky operating system.Have the dealership checked to see if your car has the PD 52 update.

 

[Noel]

Did you not read this forum before you took collection of the car.The Much spoken about PD52 update to be precise.The car is a 3 speed automatic and takes time getting used to it's quirky operating system.Have the dealership checked to see if your car has the PD 52 update.

 

[Noel]

Hi Busman, whilst I think we agree on most matters, I don’t think it’s fair to ask if ‘mcishere’ had looked on this forum to discover, if this problem existed, or had been observed, and commented on by members.
I must admit that I didn’t look myself, prior to purchase, and I anticipate that most purchasers didn’t either, given that we were not even aware that the problem, or come to that, the forum existed.

 

[Busman]

Fair point, however as you have pointed out the Update has improved the performance of your car and we have seen slot of souls be buyers commenting on the forum.

 

[mcishere]

Did you not read this forum before you took collection of the car.The Much spoken about PD52 update to be precise.The car is a 3 speed automatic and takes time getting used to it's quirky operating system.Have the dealership checked to see if your car has the PD 52 update.

No I did not presumed if there was problems the dealer would have said

 

[Noel]

Hi mcishere. I assume you’ve already discussed this with your dealership, if so did they say they have knowledge of the software update PD052, and if they did whether it had been installed, it is supposed to be installed prior to delivery.
MG and the Dealerships appear to have a problem communicating, and we end up having to apply pressure to overcome this. Which you have already implemented.
As you’re aware there are seven pagers of discussion regarding the problem, and if you’ve read the posts you will be are aware that you are not alone.
MG will say it’s a characteristic of the model, and to be honest hybrids, all exhibited something like this, due to them relying on a mixture of engines, motors, batteries, and complicated software to provide an acceptable driving experience, and good performance/mpg. It’s a sort of trade off.
If push comes to shove, you have a month to reject the car due to it not preforming safely. The sale of goods act 2015/Ombudsman provide some help, but aren’t a panacea.
Good luck…..

 

[mcishere]

Hi mcishere. I assume you’ve already discussed this with your dealership, if so did they say they have knowledge of the software update PD052, and if they did whether it had been installed, it is supposed to be installed prior to delivery.
MG and the Dealerships appear to have a problem communicating, and we end up having to apply pressure to overcome this. Which you have already implemented.
As you’re aware there are seven pagers of discussion regarding the problem, and if you’ve read the posts you will be are aware that you are not alone.
MG will say it’s a characteristic of the model, and to be honest hybrids, all exhibited something like this, due to them relying on a mixture of engines, motors, batteries, and complicated software to provide an acceptable driving experience, and good performance/mpg. It’s a sort of trade off.
If push comes to shove, you have a month to reject the car due to it not preforming safely. The sale of goods act 2015/Ombudsman provide some help, but aren’t a panacea.
Good luck…..

Hi Noal
Yes I went to Dealership and asked about this update but they had no knowledge of update on till I referred them to this forum they then contacted MG UK which confirm there is indeed a update but will check to see if my car needs it. lol
email from MG uk
Thank you for contacting MG Motors UK.
I’m sorry for the experience you have had with the vehicle.
Please note that this concern has been highlighted to MG and is currently under review with the factory.The transmission operation of this model when travelling uphill is determined at this stage to be a characteristic of the vehicle that does not pose a safety or mechanical drivability issue, therefore, the vehicle can continue to be used. We are aware that customers have expressed concern over the annoyance of the transmission operation and therefore await feedback from the factory on whether a solution can be produced to improve driver enjoyment. MG will communicate with our dealership network should a driver improvement solution become available.
If you have any form of concerns with the vehicle, then I can only recommend contacting your local MG dealership so they can inspect your vehicle and provide confirmation on its drivability if required.

2nd email from MG uk after telling them it's unsafe losing power like this
Good afternoon,
Thank you for contacting MG Motors UK.
I’m sorry for the experience you have had with the vehicle.
If you believe the vehicle is unsafe to drive or is undrivable, I recommend contacting MG assist, The AA or your third-party breakdown provide.
They will be able to assist with getting your vehicle to a drivable standard or if they are unable to get the vehicle drivable, they will recover your vehicle to your local MG dealership.
If you are looking to return the vehicle, I recommend contacting the MG dealership you had purchased the vehicle from as they can confirm the options available for you.
if you have any form of concerns with the vehicle, then I can only recommend contacting your local MG dealership so they can inspect your vehicle and provide confirmation on its drivability if required.
I’m sorry this may not be the answer you had hoped for

 

[Noel]

Hi. I find it incredible that MG UK appear to be unable to grasp the dangerous situations, that you, and others are exposed to. Quite what they expect the AA et all to do beggars belief. There is no doubt the vehicle is drivable, however under certain circumstances it exposes the occupants to danger.
Regarding “then I can only recommend contacting your local MG dealership so they can inspect your vehicle and provide confirmation on its drivability if required.”
I suspect that MG UK have no idea what to do, and therefore are resorting to denying that there is a problem, and that the Dealership will inspect, and then confirm it is drivable, because this is what MG UK have instructed them to do.
There is a disconnect between MG UK and the Dealerships, due to them expecting the Dealerships to be able to rectify all problems, without any support. I am aware this to be the case.
I have not experienced the problem mainly due to the fact that where I live in Sussex it’s not that hilly. Update PD052 has been applied to my car, and it has altered the way it drives. The engine revs a bit more, but the battery is prevented from being depleted to the point that the power loss is experienced.
It’s a fact that hybrids take a bit of getting used to, but they do have the advantages, that I alluded to previously.
Cheers Noel.