Thank you
Yes the Emissions Fix will cause an increase in the amount of soot the engine generates, I am a bit unsure if it will affect the amount of ash as well, I don't think it should. I will mostly be driving on the motorway so extra regenerations are fine, but ash isn't gasified during regeneration so that will pile up in the filter. So it really depends on the ash generation and how big the filter is how often it needs changing. I've read in two places that it should generally last for about 100k miles as long as you use the right oils, but they didn't mention anything specifically about the Fabia of course so hopefully someone here will know.
Cheers.
