Dyno testing also revealed an engine issue

This 2014 Audi A6 Allroad 3.0 TDI with a Bosch EDC17CP44 ECU was tested on a dynamometer. The video cites factory figures of 313 hp and 630 Nm, while the initial run recorded just under 300 hp and around 600 Nm. The AdBlue system had already been disabled by another workshop.

AutoChip read the software, checked the ECU on the bench and carried out a Stage 1 calibration. The post-tuning dyno run recorded 350 hp and 670 Nm.

The data logs also showed the mass airflow readings beginning to fall at around 2,800–3,000 rpm. This behaviour appeared with both the original and modified software. The video says the MAF sensor needs further attention, but does not show a repair or a follow-up dyno run.