MG4 Reduction Gearbox Oil Leak

Sorry
AndyL61 said:
No I didn't get a build date. Picked the car up 4th Feb. No idea when it was built.
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Sorry AndyL61 ...
The Plant is only 1 digit
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What's the average turnaround from it having a build date to getting to our shores. If my build date was for example today, does that mean the build starts now or is it that it's been finished being built. Do we know how long it takes them to complete each car?
 
Macadoodle said:
You could fill any of these transmissions with 600ml of oil and it probably wouldn't leak, I'm not sure the absence of a leak proves that anything fundamental has changed in the internal design. :unsure:
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Yeah I must admit l was wondering how much oil is in mine , but I am not going to worry to much about it. If it fails , yes it will be a huge inconvenience but they will have to fix it. It's their shout.
 
Macadoodle said:
You could fill any of these transmissions with 600ml of oil and it probably wouldn't leak, I'm not sure the absence of a leak proves that anything fundamental has changed in the internal design. :unsure:
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It makes no sense to me to keep filling those gearboxes, designed for 0,9 l with 0,6 l. Its a short time solution and probably pretty soon those boxes will be damaged with wheels spinning around with 12.000 rpm, with less lubrication, less cooling and raising outdoor temperatures. That will be MG's problem, not the owner.
To minimize those huge warranty costs, it makes sense to me that MG has already changed the gearbox, starting with cars with sequential number X or model year 2023?
My guess is model year 2023. G48MG4 has one, build 13 nov, no leak. Of course to be sure you must drain the oil and see how much was in it. Is there a MG4 owner in this forum with model year 2023, with oil leak?
 
Hagen said:
It makes no sense to me to keep filling those gearboxes, designed for 0,9 l with 0,6 l. Its a short time solution and probably pretty soon those boxes will be damaged with wheels spinning around with 12.000 rpm, with less lubrication, less cooling and raising outdoor temperatures. That will be MG's problem, not the owner.
To minimize those huge warranty costs, it makes sense to me that MG has already changed the gearbox, starting with cars with sequential number X or model year 2023?
My guess is model year 2023. G48MG4 has one, build 13 nov, no leak. Of course to be sure you must drain the oil and see how much was in it. Is there a MG4 owner in this forum with model year 2023, with oil leak?
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That's the million dollar question. Have they actually fixed it properly on later cars or have they just reduced the oil level ? Place your bets .
 
AndyL61 said:
That's the million dollar question. Have they actually fixed it properly on later cars or have they just reduced the oil level ? Place your bets .
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It would need a couple of new owners, who after a fair bit of spirited driving, still have no oil leaks to be brave enough to drain the boxes and see how much comes out.
Big ask to be fair if you currently have no issues, would be very interesting results though.

On a separate note has anyone with the newest build dates been able to get under and have a look at the gearbox and see what, if any, type of modification they have on the breather.
 
I've also noticed (from the spreadsheet images) that "leak-free" versions are built in plant N0 whereas leaky ones are built in plant N1. What's the difference between these plants?
 
siteguru said:
I've also noticed (from the spreadsheet images) that "leak-free" versions are built in plant N0 whereas leaky ones are built in plant N1. What's the difference between these plants?
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I formed you wrong 😔
Digit 11 is the plant 'N'. Digit 12 - 17 is the sequential number. It looks strange to me however, that some of those numbers are starting with 0 and some with 1. 🤔
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