The car had the "software update" appointment today. Service advisor brought it back in about 30-40 minutes and reported it had passed their road test too (i.e. no transmission/gearbox code). I asked if they were seeing a lot of these kind of cases/appointments , he said he has done about 10 of them so far and no issues had come up.
About 8 hours later and 148 km driven..., the dash beeped; "gearbox malfunction: you can continue driving in D until engine off"
Disappointing that it didn't happen at the dealer and i have to go back now.
I love my VCDS and thanks to it. i was able to retrieve the following. Looks like our "software update" enabled the gearbox controller with some sort of feedback from the auxiliary hydraulic pump. My theory is that the pump comes lose and won't spin at spec... and feedback is messed up (perhaps someone can better phrase this for us).
Car is at 31K miles and completely stock.
anyways, here is the aftermath Sigh!
VCDS Version: Release 22.10.0 (x64) Running on Windows 10 x64
www.Ross-Tech.com
Address 02: Auto Trans Labels: 0BH-927-711.clb
Control Module Part Number: 0GC 300 012 A HW: 0GC 927 711 G
Component and/or Version: GSG DQ381 H06 1630
Software Coding: 0014
Work Shop Code: WSC 00000 000 00000
ASAM Dataset: EV_TCMDQ381061 001 (AU37)
ROD: EV_TCMDQ381061.rod
VCID: A10A8957B05A68852D-80F4
1 Fault Found:
35494 - Control Circuit for Aux. Trans. Fluid Pump
P0C29 00 [047] - Implausible Signal
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 0
Fault Frequency: 5
Mileage: 50586 km
Date: 2023.01.26
Time: 20:35:18
Engine RPM: 1061.00 /min
Vehicle speed: 1 km/h
Coolant temperature: 104 °C
Clutch: primary stat: Creeping
selected gear: GANG_1
Driving position: d
Engine torque: 52 Nm
Control Module temperature: 44 °C
Accelerator pedal position: 14.9 %
DTC memory status: 296