Originally Posted by HPIA4v2

OK, I think I (or we) jump to conclusion too fast here and ignoring what Sunny5280 has been saying on post #4, how do we know your "stutering" issue is really transmisison problem?

The only known issue (that can be fixed w/o rebuild):
- low/incompatible fluid, we know this is not your case.
- temp sensor fail (replace harness 24341423719).
- speed sensor fails (replace harnes 24341423719 ).

Does problem persist regarding operating temp? if yes scratch theory #2
Does problem exist only at certain speed like downshift or going to sport at certain speed)? if not scratch theory #3

Can you go to open parking space and put the car in reverse and go 20-30MPH to see if stutering exist (reverse would bypass clutch A), if no stutering then maybe the snap ring that retain clutch A is slowly leaking and your only recourse would be rebuilding the trans. This is a known vulnerable point with the 5HP24.

Though contact Swissfrank, he is one of the experts on ZF 5HP24 here.

Just trying to help but looks like it's beyond my level of expertise, so GL.