This Audi A6 was inspected with an aftermarket DPF already fitted. Once removed, cracks were visible, and the technician noted that the assembly sat too low. In that position, it could strike road obstacles and place additional stress on the exhaust system.

Why cleaning may not solve the issue

Cleaning cannot repair cracks in the filter substrate. The technician explains that a blockage may return if the damaged element remains in service. The video also shows a metal insert, but its exact function is not established.

Possible next steps

The narration mentions removing the filter and software work involving the EDC16CP34 ECU. Repair or replacement of the exhaust assembly and its mounting is also discussed. The final repair choice and any follow-up checks are not shown in the video.