TerraClean - If your Diesel Particulate Filter (DPF) is clogging, warning lights showing on your dash - talk your local #TerraClean service engineers first. There are those that will say to just
DPF light came on after a 1.5 hour drive, stayed on for another 1.5 hour drive home. Tried keeping the rpms up but it didn't go out. : r/tdi
What Does the Diesel Particulate Filter Warning Light Mean? | YourMechanic Advice