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      09-18-2012, 09:35 AM   #26
ajm8127
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Drives: '07 335i
Join Date: Aug 2012
Location: Pittsburgh

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Quote:
Originally Posted by N54_Fan View Post
The sensor kit I plan to buy has 2 sensors so I figured I would place one after the factory heat exchanger which is before the cooler and then one after the tranny cooler I'm going to install.
So now I'm confused. I thought the fluid would flow out of the transmission, to the auxiliary cooler, then on to the factor heat exchanger and then back to the transmission.

I thought this routing was optimal because it would cool the ATF before the radiator, preventing the heat from the transmission from being absorbed by the engine coolant, keeping both the ATF and engine coolant cooler.
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