Never needed to try any of these firms, search the internet. But if there's an engine management fault, it's too far blocked or you drive in limp it will block again. I came across another firm that do it off the car which seemed the best way because they do full pressure drop tests, but I can't find the link. You cannot just change a dpf DIY like an exhaust. The car computer has to be reprogrammed using diagnostics tools.
DPFs are expensive and you can't drive the car legally in U.K without one.
carbon-cleaning.co.uk
DPFs are expensive and you can't drive the car legally in U.K without one.

DPF Cleaning Services - Avoid Expensive Bills | UKCC Auto Techs
Got a DPF fault? Is your DPF clogged? Want to avoid expensive replacement fees for your DPF? Mobile service available!
