The perform service just came up on the computer at 110k. I service it regulary and when I took it to dodge they said that it was a filter down by the engine. What could this be? Could it be dpf?
Probably. Due to the new emissions requirements, they have lowered the temps in the engine which doesn't allow for sufficient burn-off of the residual carbon. They have added diesel particulate filter downstream on the exhaust side to catch these particles. They then use a DPF sensor to measure when it starts to get filled which will then trigger the system to burn-off the carbon from the filter, essentially cleaning it off for re-use.
It has probably reached the end of its usable service.
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