CeeSeven; Yours is the first track overheating post I have seen. Are you sure that your tranny cooling fan is running? What sort of ambient air temps. were you running in? From the noise you describe perhaps that sound might be related to the E-Diff rather than the tranny? If the CEL came on, there should be a fault code for your service dept. to check out. Please keep us posted and good luck.
Edit: I double checked my first sentence and did find others with this same complaint.
Edit: I double checked my first sentence and did find others with this same complaint.