Software Updates ZS EV

[hmadsen]

When i bought ours i made a service contract with them, i pay a monthly fee and this then covers the yearly service including all the materials needed to do, what is mentioned in the service book.

They also said it would include updating the software, i of course assumed that would mean, they hook it up to their computer every time and make sure all modules were fully updated, but to be honest, reading these threads i am beginning to wonder if it does not just mean "we will update whatever MG says is "critical" and not every other module, where updates are marked as not that critical". Especially if some updates only become available of other updates have been made.

I think i am going to stick my OBD dongle on the car before giving it to them to do service and do a readout of all software versions currently there, this way i can see what they updated.

Not that it will do me any good as i don't really know what software versions are available, but at least it would give an indication on whether they did any software updates, if i got it back and every software version were the same as before i gave it to them.

 

[Lovemyev]

When i bought ours i made a service contract with them, i pay a monthly fee and this then covers the yearly service including all the materials needed to do, what is mentioned in the service book.

They also said it would include updating the software, i offcourse assumed that would mean, they hook it up to their computer every time and make sure all modules were fully updated, but to be honest, reading these threads i am beginning to wonder if it does not just mean "we will update whatever MG says is "critical" and not every other module, where updates are marked as not that critical". Especially if some updates only become available of other updates have been made.

I think i am going to stick my OBD dongle on the car before giving it to them to do service and do a readout of all software versions currently there, this way i can see what they updated.

Not that it will do me any good as i dont really know what software versions are available, but atleast it would give an indication on whether they did any software updates, if i got it back and every software version were the same as before i gave it to them.

The dealer will tend to use the VIN number of the car, to check on the system to see if any updates are available for your vehicle,
If not, then I believe they do not find it necessary to connect to the car via the diagnostic computer.
If you requested a traction battery SOH and a screen shot of that result, then of course they need to integrate the battery to find this out, if you get my meaning here.

 

[Jef4man4]

I have taken my 72 plate ZS EV Trophy Long Range to an MG Dealership today due to a charging error, but I asked them to do the Tesla update while its there, they have come back and said that my car is missing some kind of hardware to do the update and I need to contact MG customer services about it. I have not seen anywhere about any hardware differences does anyone know what this is?

 

[Gadget Geek]

Hi Jef4man4 and welcome to the forum.

I think what this is, is a fob off by rhe dealer who doesn't know what he's talking about. Are there any other dealers nearby? You'd be surprised at the variation of service supplied by different franchises.

 

[Jef4man4]

Hi Jef4man4 and welcome to the forum.

I think what this is, is a fob off by rhe dealer who VCC doesn't know what he's talking about. Are there any other dealers nearby? You'd be surprised at the variation of service supplied by different franchises.

Hi Gadget Geek thanks for the reply, I do have another dealer near-ish this one was mainly vauxhall with MG added, I have just got the paperwork rather than just the phone call, and it says I need a new EVCC (I have a MK2 ZS), but the paperwork has the matching model number for the EVCC, just different operating software? (Image attached) I will be going back to a different, full MG, dealer to discuss with them.

 

[Gadget Geek]

Was the Vauxhall dealer Drive by any chance?

 

[Jef4man4]

No it was a Vertu one

 

[Susanna]

@Jef4man4 - I had my 72 reg ZS SR Trophy serviced last Thursday, and on each previous occasion I have requested it to be updated to facilitate Tesla charging. This time it was done! I have just been to my nearest Tesla open charging station to test it, and squandered just over £1 there This clearly indicates that only a software update is required.

I don’t do many long drives, so usually only need to charge at home. However, I do like the fact that should I need it, Tesla charging is now available to me.

 

[Lovemyev]

It would be wise to try and find a dealer who has had experience of applying the Tesla Supercharger update, on previous cars successfully.
Why - because this update is not purely a one button press update on a single module, as you might think.
Each module has to be visited individually, scanned and then update applied, in a set sequence, which can take time and does require a strong link to the MG server of course.
If the update is not applied correctly, then the Tesla chargers will not work of course.
It’s vital you get a dealer who has done this before !.
If they have not, then be very cautious.

 

[Susanna]

@Lovemyev
My dealership said it was just the CCU that needed to be updated.

 

[Data]

@Lovemyev
My dealership said it was just the CCU that needed to be updated.

Susanna, yes from what my dealer said it's just the 'Combined Charger Unit' that has the update applied. Tesla has supplied the software update to MG who then integrates it into the CCU. It's not that hard to do & is mostly automated but might require several steps to do. But then I've only worked on petrol & diesel cars, not MG EV's, but it won't be hard. Congrats on getting it done.

 

[Lovemyev]

I think the number of modules requiring updates to allow Tesla Superchargers, will vary in number, from car to car.
Some cars may need 5 modules updating, while others only a single module update.
But the time is consumed by having to check each module.
This posted by @Susanna and was taken from information provided by Miles Roberts.
But in actual fact, when her car was checked, it only required the CCU module updating.

• Susanna
• Jan 6, 2024
• MG ZS EV FL (Software-Update)

Remove
The 5 modules that need to be updated are VCU EVCC CCU BMS and BCM. I don’t know which relates to the Tesla incompatibility issue. I haven’t had any opportunity to see if my car will connect to Tesla EVSEs - I don’t think there are any nearby, and I manage with charging at home.
The CCS refers to the ‘plug’ type - the MG has CCS 2, which will work with Tesla, provided the necessary update has been carried out.

 

[poldark]

All I can contribute is, following another Forum member posting here of a positive previous experience (and sensible price) at MG Beaconsfield.

I took the plunge a couple of weeks back and was pleasantly surprised that my "Tesla Enhancement" was correctly applied at a cost of £50 and I now have that rather useful option when travelling away from home.

 

[Data]

I think the number of modules requiring updates to allow Tesla Superchargers, will vary in number, from car to car.
Some cars may need 5 modules updating, while others only a single module update.
But the time is consumed by having to check each module.
This posted by @Susanna and was taken from information provided by Miles Roberts.
But in actual fact, when her car was checked, it only required the CCU module updating.

• Susanna
• Jan 6, 2024
• MG ZS EV FL (Software-Update)

Remove
The 5 modules that need to be updated are VCU EVCC CCU BMS and BCM. I don’t know which relates to the Tesla incompatibility issue. I haven’t had any opportunity to see if my car will connect to Tesla EVSEs - I don’t think there are any nearby, and I manage with charging at home.
The CCS refers to the ‘plug’ type - the MG has CCS 2, which will work with Tesla, provided the necessary update has been carried out.

Yes, you are quite right. It all depends on how well any given car has been previously updated. If the car is fully up to date then it's "simples" to add the Tesla software. If a car is missing certain other updates then those update will be required before the Tesla enhancement is installed. The cars don't necessarily need every available update to be installed to allow the Tesla one, just ones connected with charging.

Usually, the cars will tell the technician what updates it needs once hooked up to HQ. But not always. Not sure if this is the case with the MG.

 

[Chris Law]

Service due shortly. Can anyone advise if the update to R27 should be done free?

 

[Lovemyev]

Yes, you are quite right. It all depends on how well any given car has been previously updated. If the car is fully up to date then it's "simples" to add the Tesla software. If a car is missing certain other updates then those update will be required before the Tesla enhancement is installed. The cars don't necessarily need every available update to be installed to allow the Tesla one, just ones connected with charging.

Usually, the cars will tell the technician what updates it needs once hooked up to HQ. But not always. Not sure if this is the case with the MG.

Normally the service department can identify what ( if any software updates are available ) by simply searching on the MG system, via the VIN number of your car.
This became very apparent when I went along to my then local dealer and then to book my then ZS EV LR in for its second service.
At that time, the workshop manger had stepped into take enquiries because the service receptionist has suddenly taken ill and had to return home.
I gave him the registration number of the car, that then linked to the VIN number.
He had the MG system open on a lap top and said :-
“Arh ! - We can do your 2nd service with no problems, plus we can claim for carrying out a charging software update on your car, it’s FOC as the MG search has identified, linked by your VIN number, that it needs applying”.
Clearly showing that once the dealer is assured they will be getting paid by MG for their time, then they are only too happy to carry out the work!

 

[Susanna]

I do think much depends on your dealership, and what they disclose to you. My infotainment is still on R16 despite asking for it to be updated. I do sometimes have issues with it, but it works most of the time.

 

[Data]

I do think much depends on your dealership, and what they disclose to you. My infotainment is still on R16 despite asking for it to be updated. I do sometimes have issues with it, but it works most of the time.

I would be inclined to tell them you get issues periodically with it. You are entitled to updates & you will find extra features after that's been done. You could be running R27 which gives you a lot of extra features & a more glitch free ownership as your car will see many more updates once you have R27.

 

[Susanna]

As you have the ‘Connect’ version ZS it may be different. I asked for the infotainment to be updated, but it didn’t happen. However, they did do the Tesla update, so I can’t complain.

 

[Data]

Service due shortly. Can anyone advise if the update to R27 should be done free?

View attachment 41468View attachment 41468

Chris, mine was updated to R27 from R25 free of charge. However, this was done under warranty due to some software issues that arose after some paintwork warranty work was carried out. Additionally, R27 allows a raft of other updates that you can get that currently your car cannot see. These are aimed at making the cars systems more robust whilst refining some existing functions. Can't tell you what those are but that's what my garage has said.