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      08-24-2019, 07:42 PM   #2
overcoil
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Drives: M235i 6spd
Join Date: Dec 2013
Location: Mid-Atlantic

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This is really just guessing but I think the coolant system still circulates coolant after engine is turned off to extend turbo life.

I didn’t say how your coolant fill tank looks and at what level the coolant was at.
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