Dpf is coolant soaked

[Nilao]

you should test it before removing it. pull the outlet side and pressurize it to 20 psi. You might be able to tell just by pulling the outlet pipe off and seeing if there is coolant residue in it.

They're not hard to replace. Just take your time and have a few beers. Pictures before hand would be a good idea so you can remember how things were routed and secured.