JackMS wrote:
What they probably(hopefully) did at cat dealer was a regeneration. The engine runs at high rpm and an extra injector in the exhaust, after the turbo, sprays fuel to make the exhaust very hot and burn the soot out of the DPF. The filter may need to be removed and cleaned to get it right. You may have a button on your dash that let's you do the regen. Check your manual to see if it talks about this.
Yes thats what they did...no regen button...my question is why is this happening at such low miles...the people that owened it originally had same problem so under 20k miles...my thinking this is some kind of malfunction with the system