How do we fix our blocked DPF?

Our car's DPF is blocked. I've have tried regenerating it by running it down the motorway, but it's had no effect. Is there anything else I can do?

Asked on 13 April 2018 by Kenneth Craigie

Answered by Honest John
Might be possible to have it chemically cleaned out by Ceramex, but the fact it has been removed and put back will be spotted in the course of an MoT so the chemical cleaning of the DPF needs to be fully documented. Otherwise you need a new DPF and that also needs to be fully documented for future MoTs.
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