Originally Posted by Titch101
I was under the impression the dpf wouldnt be blocked if im getting exhaust soot through and the regens are occurring as per normal. I'll have to pull the muffler and have a look at whats inside
Partially blocked and caking up then parts of that caking which can get quite hard vibrating off and rating in your exhaust but a good amount remaining in the dpf and preventing the catalyst from working.
Your car is not as smart as your giving it credit for. Just because it's telling you regens are happening it does not mean they are happening the way they are supposed to, in fact your car will only go into active regeneration when it senses the dpf is not able to cope. How often is your vehicle trying to actively regen? and how much short distance driving do you do?