Hi , hope someone can shed some light on a this . On an 2021 Octavia fault says. The regeneration frequency of Diesel Particulate Filter is not ok , says the fault is permanent . Car is due to go for software update , would this have something to do with it. Thanks

That means the dpf isn’t getting to regen frequently enough. What kind of driving does the car do?

I drive 30 miles a day on rural roads at 60 mph and a few long drives at the weekend.

Okay, should be long enough, but the rpm may be too low. the DPF system needs a sustained run over 40mph and rpm between 2000 - 2500rpm.

In my mk2 that means sitting about 55-60mph in 4th gear (5speed manual, your gearing may vary), and for about 15-20mins to complete the regen process