Quote:
Originally Posted by fmugur
I also added an oil cooler on mine and I have the engine running at 96C.
If you don't have other transmission problems or don't want to get a reman transmission you can add a transmission oil cooler for $60 if the heat exchanger is ok and the hard downshift goes away.
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So true
I noticed my 02 X5 harsh down shift only happens when driving for a while which mean the transmission temp would have gone up.
Was thinking of adding a trans oil cooler as well but just thinking out loud, there should be one existed already right? The one that has engine coolant running around it?
Also can you explain/guide of how your was done? Did you use a thermal stat as well that only open once oil temp reach a certain level?
Thanks