MG4 Loud bang when charger connected

[Goldie007]

Just asking a question regarding charging. Yesterday I plugged into a BP pulse ccs charger and it displayed a waring to disconnect the cable as there was an issue with the connection to the car. So thought it was a charger issue and left it at that. This morning I took it to a charger I normally use a Lidl and it did the same but after taking it out and back in again it started to charge.
So... I decided to try a AC charge lead at the same Lidl charger this afternoon to see if it was something to do with the CCS. After plugging in both ends I started the charge on the app then I heard a loud bang from the car and the charger showed on screen it had stopped the charge due to something gone wrong.

What could be wrong with it now. Think this is a Friday car or is it just MG

Any ideas?

 

[Robf]

Straight back to the dealer I am afraid, definately not one to muck about with

 

[Cocijo]

Wow. Loud bang doesn’t sound good! That needs to be checked out. If you were AC charging in could be inverter related.

 

[Goldie007]

Does not show any errors on either screen. Just waiting for the dealer to call back. Was dues to go in on Monday but they will have to look today or tomorrow

 

[Cocijo]

You’re not having much luck

 

[Goldie007]

Its teething problems but just frustrating that dealers or MG cant be arsed to deal with it.

 

[Deleted member 10041]

I think it's more than teething problems to be fair as Cocijo said you're not having much luck

 

[Goldie007]

Been into dealer and they supposed to have checked it. Said it was OK and go try it again. On their head be it if this goes bang.

 

[sdjmchattie]

Do you mean bang or clunk? The clunk sound when the car begins or ends a charge, if you notice it, is the solenoids making or breaking the connection to the battery for charging as far as I know.

 

[Eber]

Been into dealer and they supposed to have checked it. Said it was OK and go try it again. On their head be it if this goes bang.

Does it charge correctly now?

 

[Goldie007]

Tried it on the CCS and it works fine. The charger I used for AC has gone out of action. Think I might have blown it up when it went bang.
Trying to find a AC charger to try it on

 

[Ian Key]

Tried it on the CCS and it works fine. The charger I used for AC has gone out of action. Think I might have blown it up when it went bang.
Trying to find a AC charger to try it on

You could try charging it at home with the granny charger if you haven't got a wall charger.

 

[Goldie007]

Just tried it ona pod points 7kw and it's tripped the charger and now that won't see the car. Looks like it's going back

 

[Deleted member 10041]

Just tried it ona pod points 7kw and it's tripped the charger and now that won't see the car. Looks like it's going back

Goldie you've not had a lot of luck, you would think it would be an easy one for them to check they just need to do what you did

 

[the briggie]

It honestly sound like a faulty inbuilt AC/DC charger or wiring/contact fault to the charger..DC works fine eliminating bms and battery...did they actually test it on an AC charger or does the dealership have DC charging capability and they used that to test? Did they test it with your cable?

I honestly with some dealerships or technicians...but I have to balance that with most technicians probably just wanted to fix mechanical bits when they started in the trade so all this EV stuff might not be for them...but it is the customers who feel the brunt of any potential shortcomings unfortunately. Just my view being a mechanical engineer who moved to digital technologies then computing and some colleagues could not cope.

P.s inverter is dc to ac from batteries to motor...charger is input

 

[Goldie007]

To be honest I think they did not test anything. A comment they made was 'oh our charger is broken' but there was some one using it when I looked

 

[the briggie]

Be good to eliminate the cable for starters...do you have an alternative type 2 granny or otherwise?

 

[Goldie007]

Yes tried two cables on three chargers. I don't want to risk the granny charger going bang as well

 

[Eber]

Well, it's not rocket science after all. If it charges DC but not AC, the AC charger module will be faulty.

 

[the briggie]

Or the socket....or the wiring given DC doesn’t use L1 and N but AC does...or the ac charger hence diagnostics are a good idea but either way if it requires parts it could be a long wait