DPF Problem SS II

Hi,

I own a 2014 Skoda Superb II Facelift (CFGB engine) with 230,000 km on the odometer.

I’m having an issue with the DPF.

When driving in the city, the DPF regenerates every 70–100 km.

During highway/extra-urban driving, I’ve managed to reach 270 km between regenerations.

Regenerations in the city are very frequent; the threshold is reached almost immediately.

I use a Vgate iCar Pro2S with the VAGDPF app, which shows an "OIL ASH RESIDUE" value of 107 grams—or 153%. As far as I understand, this is not a good figure.

I’ve done some research online and learned that the Volkswagen Group installed hidden software on all EA189 engines (known as "Dieselgate"), which reportedly impairs the functionality of the DPF and EGR systems.

The VAGDPF app indicates that my car has this software (SW: 03L906018RQ / 9980); this specific version (9980) includes the "Dieselgate" software.

One potential solution would be to "roll back" the software to an earlier version (7xxx or 8xxx)—from before the VW scandal—which should extend the interval between regenerations to 200–400 km.

My plan is as follows: perform a software rollback, carry out a chemical cleaning of the DPF, and replace the pressure sensor.

Is there a good chance this will resolve the issue?

For those who have encountered this problem, how did you fix it?

I’d appreciate hearing as many opinions as possible.

Thank you!!