Worked out the communication protocol issues with VAG DPF. I'll post the pics on the weekend as the light is not much good now for photos.
The ELM327 connector is a $25 Amazon sourced Konnwei Bluetooth 3 network bridge (Dongle). Supports all OBD2 protocols. Posted from Brisbane and arrived in 2 days.
Bluetooth password is 1234.
Set your engine type by trial and error. Default is let ecu select. Didn't work. For the V6TDI, it's class 0. First on the list.
The bluetooth connector is small enough to leave permanently in situ.