Recovered to dealer - System fault.

5teep

5teep

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I've been seeing slower charging on Rapid chargers this last few weeks. I put it down to the freezing weather (and it possibly is partly) but today I had a rapid charger error out on me, one that normally works fine. I put it down to a fault on the charger and went on my way, I was localish and on about 60% so no urgent need.

I got to my next job and while I was working on the laptop the car died, I had the car on full for some heat and to run the computer. When I looked up I had the dreaded HV battery disconnect with low power on the 12v batt.
Did the usual stuff but nothing worked so called AA out and their guy tried everything he knew includiing charging the 12v, clearing invisible errors, but the fault remains. So breakdown truck to the dealer and I have to cross my fingers they can sort it. It's a lease so luckily the leasing co. include a hire car.

Advice, take warm clothes with you, it's darned cold out there just now and was no fun waiting for pickup.
 
Dealer phoned today to say it will be weeks before they even look at the car. They had 5 recoveries in last night and 20 total in the last week (not all MG5s). I guess the weather has been playing havoc.
 
5teep said:
Dealer phoned today to say it will be weeks before they even look at the car. They had 5 recoveries in last night and 20 total in the last week (not all MG5s). I guess the weather has been playing havoc.
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Can your lease people get it in elsewhere, they may have a vested interest in keeping hire car costs down. 🤷‍♂️
 
Maybe they can, it's not my problem thankfully. I pick up an ICE car rental (after much delay) shortly and will have it until mine is fixed or swapped.
What's the big stick in the middle for again?
 
5teep said:
Maybe they can, it's not my problem thankfully. I pick up an ICE car rental (after much delay) shortly and will have it until mine is fixed or swapped.
What's the big stick in the middle for again?
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My biggest problem when I had to drive a ICE car again was I forgot I had to brake :eek:
 
Gomev said:
My biggest problem when I had to drive a ICE car again was I forgot I had to brake :eek:
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I think I forgot the clutch once on the MG3 I was lent when my 5 was in for a VCU swap (which didn't fix the check HV battery problems as that turned out to need new software)
 
I've ended up with a Golf R automatic for now with 'all wheel drive', it's a nice drive but very thirsty. The person who drove it before me was getting 27mpg but I'm doing better with 36 lol.

And yes to forgetting to brake...
 
Got my car back 14 days ago and it just died again as I was leaving the house (
When the dealer fixed it they said it had needed a power distribution module, the gizmo that feeds power to the electric motor to make it go. This feels like the same thing again and I'm lucky I was going slowly as the car simply died and the steering locked up.
 
5teep said:
Got my car back 14 days ago and it just died again as I was leaving the house (
When the dealer fixed it they said it had needed a power distribution module, the gizmo that feeds power to the electric motor to make it go. This feels like the same thing again and I'm lucky I was going slowly as the car simply died and the steering locked up.
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I would suggest this is a notifiable report to the DVLA, can't imagine what could happen at speed!! Vehicle recalls and faults
 
5teep said:
Got my car back 14 days ago and it just died again as I was leaving the house (
When the dealer fixed it they said it had needed a power distribution module, the gizmo that feeds power to the electric motor to make it go. This feels like the same thing again and I'm lucky I was going slowly as the car simply died and the steering locked up.
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Actually engaged the steering wheel locking rather than just being really heavy due to the lack of power assist?

If that the case then yeh might be worth contacting the DVSA
 
That was the first thing that occurred to me too.
No assistance or actually locked?
 
Hmm that reminded me of years ago coming to the end of a fast motorway drive in my company Sierra Sapphire on the outskirts of Amsterdam, which I didn't know at all, only to find the steering fluid had leaked out somewhere en route. Luckily it was a connection at the bottom of the bottle (or something like that) so easily fixed.
 
No assistance then lock, sorry guys. The car behaved as if I'd switched it off, instant full stop and the wheel took a jerk to the left and locked, managed to free it after by selecting neutral. It's been recovered to the dealer now and hopefully will not be another 6 week wait to get it looked at.
 
Update on this, still don't have my car back yet but it's looking good for next week. It's been over 18 weeks now with the dealer going back and forth with MG tech support trying this and that until last week when they finally thought to test the charge socket!
They 'think' that corrosion on the charge port connections lead to raised resistance which fooled the battery into thinking there was a major problem. A new port fitted and I was able to test charge it today for them (dealer would not pay to charge it lol) and they are keeping the car for a few more days to run some tests.
It charged ok except that it still will not go faster than 39kwh, technician thinks this might be a firmware issue as he can find no physical reason why it should be happening. Anyway he's passing the info on to MG to see if they can come up with a solution to that.
Fingers crossed I'll be back in my MG5 next week and away from this awful E2008 I've had to drive recently.
 
5teep said:
Yep, but at 22c and on a 50kw charger with 55% battery it should charge at the full 50kwh
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depends on the charger and the current rating, on some of them they can’t actually deliver 50kw to most cars perticullarly at the lower voltages.
 
5teep said:
Yep, but at 22c and on a 50kw charger with 55% battery it should charge at the full 50kwh
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Should but won't perhaps. One 50kW charger near me (Engie/Chargepoint) would never go above low 20s whatever the conditions or your SOC.
 
As I said some of the 50KW chargers actually cannot output that with a lot of the cars, what I'm suggesting is there's quite possibly nothing wrong with the car and you were running into a limitation of that particular charger.

I guess the only way to be sure would be to get a lowish SOC and go find a 150 or 350kw charger and see what you get on that*

*that said I've seen the 350kw gridserv ones get into a state where they won't supply more than 31kwh (usually cable cooling failure) so even that's not guaranteed.
 
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