Another few things I noticed after driving a little more. None of them are major, I just noticed them.
Data from "Daten Übers." (left display for AFB data) is transferred to ETCS, PZB/LZB data. IRL it is the other way around. Data entered for ETCS, PZB/LZB data is copied over to the "Daten Übers." screen.
The loco doesn't have "Wechselblinken" for PZB anymore. Instead just the 55/70/85 (depending on PZB mode) is blinking with a clear text below it ("V-Überwachung X km/h"), showing the speed PZB will check.
When entering the "Z/Br" Display on the left display to go back to the normal TDD, there is a button "G" to get back to it. Not the "TDD" button. (I am not sure about this one. I don't have much experience with the Software 9 for the Br 186)
When doing the LZB Test there shouldn't be a Zwangsbremsung. For most other locos that is the case, but in the Br 186 (and Br 187, too) the PZB/LZB is a STM (specific transmission module) for ETCS. In this case PZB/LZB doesn't have a dedicated Bremswirkgruppe. Zwangsbremsungen are done with the ETCS Bremswirkgruppe, which is already checked with the ETCS Bremstest.
Traktionssperre (traction lock) doesn't come in, when moving the brake lever out of the "5 Bar" position. The traction lock will only come in, when the brake pipe pressure is <5 Bar and the electric brake is not unlinked from the brake lever (with the button on the top of the lever).
The brake cylinder pressure shouldn't rise when braking with the brake lever (unless the electric brake is unlinked from the brake lever). As long as the electric brake is linked to the brake lever the loco will only use the electric brake for itself. Once the electric brake force reaches zero (close to V = 0 km/h), the brake cylinder pressure will rise