Roberto, I think you misinterpreted the tenor of my question. I was not asking sarcastically but seeking information. Take it as you will. I have just never seen codes for transmission problems that could be obtained by a typical owner, especially via the stomp test, of which you have instructed multiple people multiple times.
I'm sure that BMW dealers and/or higher level independent BMW mechanics have a computer system that can query the TCM for codes. I just thought you knew of a code check for the transmission that I was not aware of.
Calypso Red 1992 525i with 183K miles
1991 735i - Sold
1992 525i - Sold
1995 325is - Sold
2000 528i - Sold