Cannot get CarScanner app to work with my MG5 LR Exclusive

[SteveChelt]

Cannot get CarScanner app to work with my MG5 LR Exclusive

I've had my 2021 MG5 LR pre-facelift Exclusive for about 6 weeks now (bought from Cleevely) and cannot get CarScanner to work. This is what I've tried so far -
OBD dongle: Vgate iCar Pro
App: CarScanner Pro - connects to dongle but fails to connect to ECU after ages trying
Tried using these profiles in CarScanner -
MG5 2021-2022
MG5 EV / Marvel EV / MG ZS Facelift 2022
ZS EV

I've also tried the eZS app - this seems to work well and connects near instantly.

Can anyone shed any light on what I might be doing wrong? Thanks in advance!

 

[MickeySw]

.Can anyone shed any light on what I might be doing wrong? Thanks in advance!

There have been reports of some pre FL MG5s ‘refusing’ to work with CarScanner using a Vgate, looks like yours is one of them?

You could try the ‘tested’ OBDLink LX dongle but make sure you can return it if it doesn’t work.

 

[Jomarkh]

Is it worth removing the negative terminal on the 12v battery to see if that reset it?

 

[Gomev]

There have been reports of some pre FL MG5s ‘refusing’ to work with CarScanner using a Vgate, looks like yours is one of them?

You could try the ‘tested’ OBDLink LX dongle but make sure you can return it if it doesn’t work.

Indeed some just don't seem to want to work with an OBD, see this thread as well

C

Thread 'Nexlink ODB won't connect to ECU'

Feb 17, 2024

I've got a pre-facelift MG5 from the second half of 2021 and no OBD reader seems to connect to the ECU. I found a recommendation for a Nexas Nexlink BT5 device elsewhere on the forum, which that user said works with their car. However, it doesn't seem to work for mine.

I'm using an Android phone with Car Scanner Pro. I think I've tried all of the connection profiles now, but still no dice. The phone connects to the dongle fine, but the dongle can't access the ECU. I tried torque scanner pro in case it was something to do with the app, but that didn't fix it either.

Anyone had similar...

• CanyonReveller
• bt5 ecu mg5 nexlink odb reader
• Replies: 15
• Forum: MG5 EV Forum

or this one

Thread 'OBD II Again!'

Feb 4, 2022

So, after wanting to get more info from the car and to track trips, data, SOH, etc, and having used PHEV Watchdog from Daniel Santos for years.

I offered to have me MG5 LR as a test to gather data for him to put into an app for us, so I plugged in one of my OBD II readers to the car, but alas can't connect to the ECU.
So read a few forums and a few pages, found an adapter that 'should work', so I bought that and you guessed it. Not able to connect to the ECU.
I looked harder at posts than before to get one that would actually work, and got a refined type and model. Bought that!
Guess...

• escortcab
• mg5 obd
• Replies: 19
• Forum: MG5 EV Forum

 

[SteveChelt]

Is it worth removing the negative terminal on the 12v battery to see if that reset it?

I did do that a few days ago when I fitted a BM2 battery monitor, it didn't make any difference.

 

[SteveChelt]

I just tried the Roewe eRx5 profile and it did connect but only gave a very limited amount of data, most was missing. This is the best I've managed so far. The eZS app connects straight away but gives much less information, it would be nice to get CarScanner to work!

 

[Alb]

MG5EV profile has always worked for me using a Nexus OBD2 Scanner.

 

[SteveChelt]

MG5EV profile has always worked for me using a Nexus OBD2 Scanner.

I've ordered one of these from China, half the price compared to the usual big shopping site. I'll update whether it works or not after it arrives in a week or two!

 

[google1901]

I do use Vgate obdII with Car Scanner (Android) for our MG5 FL. All OK. Just one query; does the App + mobile phone type (iPhone/Android) impact behaviour?

 

[Gomev]

I do use Vgate obdII with Car Scanner (Android) for our MG5 FL. All OK. Just one query; does the App + mobile phone type (iPhone/Android) impact behaviour?

Impact what behaviour ?

 

[MickeySw]

Just one query; does the App + mobile phone type (iPhone/Android) impact behaviour?

Once you get a successful connection to the car, the data received should be identical.
Generally speaking, it’s harder to achieve stable communication using iOS devices.

 

[SteveChelt]

Well the Nexas NexLink arrived a few days ago and the results are exactly the same with it as with the Vgate iCar Pro, only the Roewe eRx5 profile connects and then gives very limited info.

Gomev - did you ever get CarScanner working on your car?

 

[Jomarkh]

Are your settings similar to these?

 

[Gomev]

Well the Nexas NexLink arrived a few days ago and the results are exactly the same with it as with the Vgate iCar Pro, only the Roewe eRx5 profile connects and then gives very limited info.

Gomev - did you ever get CarScanner working on your car?

No I never did. I gave up chasing more and more OBD connectors and the expense and just accepted that it was never going to work. They worked fine on my previous MG ZS EV and also on a Kona EV so there is/was never anything wrong with the connectors or Carscanner.

 

[emmrecs]

@SteveChelt

The settings which @Jomarkh shows are exactly the same as mine (apart from the Bluetooth code, which I suspect is Nexas unit specific) and it works.

 

[SteveChelt]

Here's my settings. The only differences I see are that mine is set to Bluetooth LE 4.0 as in the Nexas instructions, plus the Nexas serial number, mine being from Jan 2025. Just tried again and it does not connect. When I'm next at Cleevely I will ask them to try, bought the car from them and they're only a mile or two from me, which is handy.

 

[emmrecs]

mine is set to Bluetooth LE 4.0

Have you tried the "alternative" setting (under connection type), i.e., "Bluetooth"?