1.9 TDI AFN: Can ECU be remapped?

"Hi, can anyone from the TDI tuning community tell me if the engine control units (ECUs) in a 3rd generation Golf TDI (AFN) can be reprogrammed (e.g., from manual to automatic transmission)? VW naturally says no, it's not possible. I'm from Seelze, near Hanover. Is there a specialist here, perhaps with the necessary technical equipment? Where is the ECU located, and can you see a part number on it, or do you only see it when you connect a diagnostic tool?"
Reason: The well-known warm start problem persists, despite a new battery, temperature sensors, and a functioning starter.

Sure, here is the translation of the text from German to English:

"Hello"

thomas

Not all ECUs (Engine Control Units) from this generation can be reflashed. For example, my AFN BJ98 cannot be reflashed.
Therefore, here's the even better solution (thanks to Ulf).
/viewtopic.php?t=11189&postdays=0&postorder=asc&highlight=warmstart%20afn&start=0

/viewtopic.php?t=3094

greetings