OBD Data

MoDolph · Dec 14, 2022

Has anybody had any success reading anything but the most basic OBD data from the MG4?

I've tried Torque and Car Scanner but have yet been unable to get readings such as battery power, battery temperature and SOH. Without these I can't optimise how I use the car properly. Compared to the LEAF with LeafSpy I feel like I'm driving blind.

I have noticed that a Spanish chap has somehow managed to get at least the battery power and SOH data using Torque so it must be possible:

liberostelios · Dec 14, 2022

Have you tried any of the MG5/ZS profiles in Car Scanner?

MoDolph · Dec 14, 2022

liberostelios said:
Have you tried any of the MG5/ZS profiles in Car Scanner?

Yes, they connect but don't add any more sensors. I even tried the SAIC Roewe car but that wouldn't even connect.

liberostelios · Dec 15, 2022

MoDolph said:
Yes, they connect but don't add any more sensors. I even tried the SAIC Roewe car but that wouldn't even connect.

That's a bit weird. I could see how the sensors would be there but they would have faulty or no values, but it's a bit confusing that they aren't there at all.

MoDolph · Dec 15, 2022

liberostelios said:
That's a bit weird. I could see how the sensors would be there but they would have faulty or no values, but it's a bit confusing that they aren't there at all.

Your right, sorry I wasn't very clear. The sensors are listed but with no values.

liberostelios · Dec 15, 2022

Well, not sure if you are up for an adventure, but you can try to find the values yourself. Here is a tutorial about it:

I expect mine in a couple of months so I will try to do this myself, unless someone else has done it by then.

N2STY · Dec 17, 2022

I use a free app on my ZS gen2 but should work on mg4 as it thinks my car is a 4

eZS - Apps on Google Play

OBD2 Scantools For MG ZS EV/EP/HS PHEV

play.google.com

This is the OBD2 adapter

https://amzn.eu/d/7jRDfjO

Here is a screenshot

That's just one page it has lots of love data I will put up a video at some point when I have time but for the meantime here's a heater test

Retsiba · Dec 17, 2022

I wonder what the point is in buying a car and trying to "hack" it to get valuable information to help you increase the car's performance from a point of under performance to expected performance. Assuming that's the purpose of all this.

Again, what's the point, if its not doing the job simply bring it to attention of the seller and stop buying it.

MG have dropped the ball and other Chinese entrants will be here soon to give us equally cheap options.

liberostelios · Dec 17, 2022

Retsiba said:
I wonder what the point is in buying a car and trying to "hack" it to get valuable information to help you increase the car's performance from a point of under performance to expected performance. Assuming that's the purpose of all this.

Again, what's the point, if its not doing the job simply bring it to attention of the seller and stop buying it.

MG have dropped the ball and other Chinese entrants will be here soon to give us equally cheap options.

I don't think anyone mentioned anything about the car's performance here.

Not sure about others, but for me this is mostly due to personal interest and my intrinsic nature of hacking things

I use an OBD adapter in my current diesel car as well.

MoDolph · Dec 17, 2022

My interest is also mainly curiosity but it would be nice to try different heater settings to see if any are more efficient. I also want to see the battery temperature to know whether I need to activate battery heating and when the best time to do it is.

Cars should provide this information but often don't. Many don't even show the battery percentage.

Retsiba · Dec 17, 2022

I guess you all have a right to satisfy the curiosity within. As for me, I buy something and never get curious about what's inside or how it works enough to delve deep and maybe I should. But if I had such interest I'll be pursuing it further towards being a developer of such rather than buy and try to get inside.

Deleted member 9692 · Dec 17, 2022

Retsiba said:
I guess you all have a right to satisfy the curiosity within. As for me, I buy something and never get curious about what's inside or how it works enough to delve deep and maybe I should. But if I had such interest I'll be pursuing it further towards being a developer of such rather than buy and try to get inside.

Yup, this thread seems to be for those with the opposite view point.

Can anyone recommend an OBD reader for me that might work going forward but can also use on my other car (Volvo XC 60) perhaps?

liberostelios · Dec 17, 2022

Crawfyp said:
Can anyone recommend an OBD reader for me that might work going forward but can also use on my other car (Volvo XC 60) perhaps?

I have a very cheap ELM327 that I bought through Amazon and works fine (with an Opel Corsa D and an Android phone). I'd suggest that you look into every app's description where they might suggest specific.

On the high end, you can find things such as OBDLink devices. A friend of mine with a Tesla and an iPhone has the OBDLink MX+ and it works great. Just make sure that if you have an iPhone you buy an adapter that works with them.

Alb · Dec 17, 2022

Retsiba said:
I guess you all have a right to satisfy the curiosity within. As for me, I buy something and never get curious about what's inside or how it works enough to delve deep and maybe I should. But if I had such interest I'll be pursuing it further towards being a developer of such rather than buy and try to get inside.

I'm an engineer and I want to know how everything works. The more data the better as far as I'm concerned!

Sloucher · Dec 17, 2022

So far as I can see from the screenshots on Google PlayStore, it may be able to display all the module software versions - which could be really handy to know.

N2STY · Dec 17, 2022

Crawfyp said:
Can anyone recommend an OBD reader for me that might work going forward but can also use on my other car (Volvo XC 60) perhaps?

The one on post 7 is good and has worked on every car I have tried it on one was a v50

Sloucher said:
So far as I can see from the screenshots on Google PlayStore, it may be able to display all the module software versions - which could be really handy to know.

It can

AdamskiEM · Dec 17, 2022

Don’t suppose it can tell anything about other components? Specifically if the headlights are on?
I’m wanting to make my own HUD, to show the battery percentage, along with the current speed. I had a HUD in my old car, and I miss it

Oberoy · Dec 18, 2022

[

N2STY said:
I use a free app on my ZS gen2 but should work on mg4 as it thinks my car is a 4

eZS - Apps on Google Play

OBD2 Scantools For MG ZS EV/EP/HS PHEV

play.google.com

This is the OBD2 adapter

https://amzn.eu/d/7jRDfjO
Here is a screenshot
View attachment 13751
That's just one page it has lots of love data I will put up a video at some point when I have time but for the meantime here's a heater test

No good on a 4

N2STY · Dec 18, 2022

Oberoi said:
[
No good on a 4

Are you sure it's the app and not the OBD2 adaptor I have at least 6 of them an only one works

Oberoy · Dec 18, 2022

N2STY said:
Are you sure it's the app and not the OBD2 adaptor I have at least 6 of them an only one works

Maybe, though I have 2 obd2 adapters neither return anything much this app other than very few items, none of the module versions.
Got more basic info in a couple of other apps, nothing that isn't visible on the car screens though.
Have you got this working in a 4?

OBD Data

Established Member

Standard Member

Established Member

Standard Member

Established Member

Standard Member

Distinguished Member

Established Member

Standard Member

Established Member

Established Member

Deleted member 9692

Standard Member

Moderator

Distinguished Member

Established Member

Established Member

Distinguished Member

Established Member

Yes

I'm in the middle

No

Latest MG EVs video