MG4 SE SR pre and post MY24

fshuk1 · Monday at 1:15 PM

I have had both and I think an interesting idea for pre MY24 cars is building in my mind. I do nearly the same trip most days in winter and summer. We all know that cold has a major effect on Battery efficiency. The pre MY24 cars have open Grills at the front. Post MY24 have automatic grills added to the SR model. I have now seen that the MY24 has better efficiency than pre MY24 in cold mornings. I am assuming that it is because the grills are closed over night so the battery pack does not get as cold (open to other suggestion). So unless you do massive amount of Motorway driving at high speeds that make the batteries hot and need cooling, you should block the grills at winter and unblock for warmer times.

siteguru · Monday at 1:16 PM

Or ... block all bar one of the slots (on each side) and run that way permanently?

ReintjeWA · 2025-04-15T02:08:30+0100

I would think the grills being closed when no cooling is necessary helps with reducing drag, that would probably have the most impact.

fshuk1 · 2025-04-15T09:02:13+0100

I have not experienced any efficiency gains driving in motorways but you may be correct. It should be noted that MY24 has 49kwh battery as opposed to 50.8 but seems to deliver similar efficiency.

hojnikb · 2025-04-15T17:32:39+0100

I wonder if that could be retrofitted to pre MY24 models.. Anyone looked into that?

fshuk1 · 2025-04-15T18:32:12+0100

Might be more complicated than that.

Slipstream · 2025-04-16T10:38:54+0100

fshuk1 said:
I have had both and I think an interesting idea for pre MY24 cars is building in my mind. I do nearly the same trip most days in winter and summer. We all know that cold has a major effect on Battery efficiency. The pre MY24 cars have open Grills at the front. Post MY24 have automatic grills added to the SR model. I have now seen that the MY24 has better efficiency than pre MY24 in cold mornings. I am assuming that it is because the grills are closed over night so the battery pack does not get as cold (open to other suggestion). So unless you do massive amount of Motorway driving at high speeds that make the batteries hot and need cooling, you should block the grills at winter and unblock for warmer times.

Is that a good idea to block the vents ??

MG4 SE SR pre and post MY24

fshuk1

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siteguru

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ReintjeWA

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fshuk1

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hojnikb

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fshuk1

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Slipstream

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