hi newbie to forum with a w212 dpf issue any advice

[milesbetterRoy]

hi , I'm a newbie but aMerc fanatic I've a 2011 e220 w212 7matic displaying dtc code saying dog full of soot I sprayed in Dpf Doctor threw first tempeature sensor yesterday filled up with wynns to lower temp which engine Regens in haven' had a proper chance to run it through but there is a bit of a difference it' put my mil light back on its booked into Merc Tommorow and don't want it to beat me any help ideas appreciated thanks Roy