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cebrailbakan cebrailbakan is offline
Posts: 1,072
Join Date: May 2013
Car: BMW E90 335XI
Default 01-08-2019, 11:49 AM

Originally Posted by seroga1986
If you live in a colder climate then an external thermostat is a must. I have had the trans cooler for 3+ yrs now. If its freezing outside then trans temps take a long time to reach even 130. It needs to be at least 150-160 to beat on the trans. Anything below that is not good. I have a 160 thermostat and its working out great. Over 50 on track hours with temps staying under 175. On street it stay 160-165 dont matter how hot it is outside. I recommend a thermostat if you are going to bypass the stock heat exchanger.
Hi , I located my transmission cooler in front of the grills. This induces the trans temperature always below 40 Celsius in winter. It hardly reaches to 60 in summer despite hard drive. No issues so far. Will it be a issue in long term ?
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Bmw E90 2007 AT 335xi MSD80,Jb4 G5 ISO,
Full Bolt Ons, Ps2 turbos, TFT inlet system,xHP Stage 3

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