having AW55-50SN ,AW55-51SN,,AF33-5 issues put a filter in cooler line, been fighting a transmission that works for 15 minutes and quits working no shift and growls, tried everything apart from rebuild, thought i would share the fix i cut cooler line put a metal fuel filter with hose clamp ends on it ran motor 10 minutes flushed filter and globy goo came out put filter back on my car works again, no growls, shifts fine wanted to share cause it was a royal pain, hope it helps someone else, with all the tranny problems ive read, 2 clamps g15 filter

 

Yes but could this not be a problem of radiator coolant mixing with ATF?
Means the radiator is leaking and it will eventually stuff the transmission completely if not resolved quickly.