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Old 02-06-2013, 11:30 PM   #15
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Join Date: Mar 2008
Location: Connecticut
Posts: 414
My Ride: 2002 330 CiC
Originally Posted by 3coupe View Post
the thermostat is completely open (at least from what I've read) when the heater is on.

Do you remember what your source was for that? Seems counter-intuitive to me. Heat is normally called for when the ambient temperature is low, which is when the radiator can take the most heat out of the coolant, also the heater is taking heat out of the coolant, so the coolant is likely to be cooler, hence the need for the thermostat to be partially closed. I'm sure that's a run-on sentence, but still, makes no sense to me.
I love my car as much today as the day I bought it
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