Soot from exhaust
 

Hi all, My 2010 s60 d3 163 with 58k on clock and i do 350+ miles each week mainly upon motorways, is emitting soot from the exhaust upon cold start up.There is a hint when you rev up high at a stand still but nothing I've noticed in the headlights in cars behind me when i hard accelerate. I have a volvo vida dice and am getting no error codes. It's been into the local Volvo dealership and had a full service and the T map sensor replaced under warranty but this runs out in febuary so i need help getting it sorted. The soot content today in the DPF was 7.34g and Adapted Differential Pressure was 3hPa. I've done two forced regens one last sunday and the sunday before, before doing the forced regens i noticed that the Adapted Diff was reading a minus number but now is a plus. Any ideas as to what the Adapted Diff pressure should be ???

Has it had the dpf gutted and internals removed? How long have you had the car? Any smoke at night in tear view mirror?

As far as i know it's not been gutted and there no smoke as i can see when i boot it at night. I've owned the car since febuary this year

Look to see if the intercooler is leaking or any inlet air pipes,
Dave

As far as I can see there is none and I’m getting full boost