If You have problems with switching off DPF - car from time to time smokes with white smoke, and in dashboard illuminates DPF problems. We have found correct DPF switch that disables DPF functionality for Audi A8 4.2TDI with BOSCH EDC17CP44.
Car have 2 ECUs Master and Slave. Works best using bench mode for tuning - we used Autotuner tool in bench to read and write.
ECU: BOSCH EDC17CP44 SW: 4H0907409AE_0008 10SW093446
File service available also for good Stage1, Vmax, EGR off, DPF off, SCR / AdBlue, NOx off

