does the turbo coolant circulate after turning engine off on 2012 bmw 640i
What is your question?
I see that the 2012 BMW 640i has an aux.water coolant pump for the turbo charger, I assume that is for keeping the turbo bearings cool, so does it continue to circulate the water after you turn off the engine. Also should I be concerned about the condition of the turbo if I purchase this 2012 BMW 6401 with 51,000 miles on it
Thanks
Geoff
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Hello,
I would not be concerned unless there is reason to be, and the coolant pump will pump coolant through the turbocharger.
It may not even run every time the vehicle is off.
