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      04-13-2026, 12:24 AM   #2
drwankel
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Drives: E92 M3, G20 M340i
Join Date: Feb 2016
Location: Bothell, WA

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Maybe. Those temperatures do indeed seem too low even for 37F.

Have you driven the car since this incident? I'd be wondering what temps it hits during normal warmup on the next start.

If the thermostat has indeed failed open, it should be very apparent during warmup on the next drive. The car will take quite a lot longer to warm up, and possibly never hit temp. Your previous startup description seems like normal operation.
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