auxiliary heating/cooling deactivated

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Curious if others have seen this warning. It's come up a few times for me in the past ~year with no explanation. Haven't noticed any ill effects.

It seems like it has something to do with preconditioning, but I've never used preconditioning. I have the charging window set to be 100% at 2am.

This warning came up yesterday morning, the car was not plugged in.

IMG_3085 Large.webp
 
I’ve seen a similar message when I pull into a DC charger at a low low state of charge and try to activate “comfort climate” while charging. When this happens there is no AC function. It disappears and the AC works normal once I unplug the car and drive off.
 
I have had the Mini refuse to fire up the cabin cooling when at low a state of charge at a fast charger.
Essentially the cooling system struggles to cope with the task of cooling the battery doing charging AND the cabin. In essence it seems undersized.
 
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