Here is a crazy thing since talking about cooling strategy: when wife's car overheated due to loss of coolant, the aux fan didn't come on even at 210-220. I wasn't there when the needle was pegged at 260!

The car set an SES code for shorted coolant temp sensor it thought the reading was erroneous it seems. Maybe because the ect was so much hotter than the oil temp or something?

Anyhow I was concerned the aux fan was broken but I was able to turn it on manually with the foxwell. Just was very confused that the aux fan wasn't running. Maybe the clue is above that the computer uses outlet temp to decide when to kick in the aux fan.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)