Well, it's been "escalated" AGAIN, but I keep getting the same not-answers to my questions from Skoda Technical.
Your questions:
Was the 23AX update intended in any way to change the behaviour of the DSG gearbox?
Did the 23AX update change software in the ECU alone, or the ECU and DSG?
Does the attached handbook picture, and my description above (Edit – see below) , accurately describe how the DSG should behave – i.e., Sport mode selecting and holding lower gears than Drive and Economy modes?
My pre and post-update ECU software version number and pre and post-update DSG software version number.
The response we received is below
The campaign was to: On the affected vehicles the software of the engine control unit must be updated and on vehicles with dual clutch also the gearbox control unit.must be updated.The software update reduces emissions The software update does not have any negative effects on fuel consumption, CO2 emission values, engine performance, maximum torque, noise emissions, the durability of the engine or exhaust gas after treatment system. The engine and gearbox ECUs were updated, there is no information other than the above.
The hand book does not give a detailed description as to how the gear box should behave . I would suggest the customer visits the local retailer for a like for like comparison with another vehicle"
This statement is junk as both the Skoda website here:
https://www.skoda-auto.com/world/range-driving-modes
And my handbook unambiguously states:
"In Mode S , the forward gears are shifted automatically up and down at higher engine speeds that mode D"
and
"In mode E , the forward gears are shifted automatically up and down at lower engine speeds than mode D"
I recently drove 3 similarly aged VW/Audi 2L DSG cars, and they have a Sport mode that actually does things...
I'm still gathering data, but it looks like my DPF regen frequency is now in the 200s rather then 300s of Km.
It's been theorised that the update makes it deliberately burn rich and cool to reduce nitrogen oxides, at the expense of more soot.
I'm so ****ed off...