Well Ontario is not any colder than Michigan.
It was parked inside to repair the disa flap so nothing would've been frozen. Drove it over the weekend and didn't notice any more whistling noises when shifting.
But, disa has been repaired, performance is normal, cel is still on. I was hoping that after 5-6 cycles the cel should reset by itself. Am I wrong to assume that?

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2004 X5 3.0