The dealer sent me a new reman DPF and I replaced it. The one that was on there was supposedly installed in Nov and was under warranty.
Believe it or not the DPF is substantially cheaper than the exhaust/muffler system. Reman DPF from MB is ~$250. Exhaust system is four figures
. I'm going to get a good look but if I don't see anymore sensors after front muffler I may just gut em.
Car ran out real well between 80 and 100 mph during testing in a controlled area.