For everyone with Trans issues - tried cleaning the valve assembly?

[CharlieHustleX5]

Valve bodies are known to be the cause of many BMW transmissions faults, but dealerships cant diagnose that kind of stuff. If one were to DIY a valve body removal and cleaning, valve body gaskets and seals are not available through the dealer and almost exclusively found at transmission shops. Without the manual specific to the transmission being worked on, many key things could be left out when assembling or disassembling a valve body. Also, what would be used to clean out the passageways? Brake cleaner? Sometimes its not the greatest idea to use such a cleaner.

Its just a littlle bit more involved to service a valve body. I guess if some were interested, I could post a DIY on a valve body removal for the 5L40E transmission.