Transmission pan options...?

[ard]

I'd do a cooler.


The heat exchanger is a decent way to get the trans UP to temp as well. By tying the temp to the engine/oil system, it is easier to manage- engineering wise



Id also monitor your trans temps and EGT.


100% agree that temps kill trans. DOesnt take much to overheat, damage seals...then death begins. Not sure about that chart tho...

[josiahg52]

Yeah, that chart seems to have an agenda.

Personally, I don't think an additional cooler is necessary. Air moving across the radiator and the engine coolant thermostat working with the transmission fluid thermostat works pretty well to keep temperatures in check.

You tow. Maybe you need a separate cooler. What temperature does your transmission fluid run at when your towing?

[robnitro]

Originally Posted by ard

I'd do a cooler.


The heat exchanger is a decent way to get the trans UP to temp as well. By tying the temp to the engine/oil system, it is easier to manage- engineering wise

...

No, there's a thermostat on the transmission cooler that only opens when the temps get hot.

[ard]

Originally Posted by robnitro

No, there's a thermostat on the transmission cooler that only opens when the temps get hot.

Huh. Thx. Didn't realize that on the 50. Don't think that's the case on the D, but not sure.

[robnitro]

Originally Posted by ard

Huh. Thx. Didn't realize that on the 50. Don't think that's the case on the D, but not sure.

Oh I was talking about the D.
RealOEM.com - Online BMW Parts Catalog number 4.

I changed mine a while back. The coolant loop has the thermostat. It was closed at room temp.
The trans fluid flows through that thermostat which opens the coolant flow when hot.
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