Conclusion

I believe the data demonstrated on this page serves as proof that the DPF in my Land Rover Discovery Sport is not able to regenerate itself during normal driving conditions on UK roads. The car must continuously resort to active regeneration to burn off the accumulated soot, which is not ideal for the engine nor the environment. Unless, of course I drive the car at speeds above 80mph...

Car dealers should make people aware of the potential issues that can arise from the DPF, and warn prospective buyers that diesel vehicles are not suitable for people not commuting long distances on a regular basis.

It is also beyond me why Land Rover is not providing a DPF soot monitor on their dashboard. After all, they have all the data and the technology to do so. It would be a great feature to have, and would save a lot of people from unnecessary expenses. All it would need to do, is to warn drivers not to stop the engine while the DPF is regenerating. This alone would solve a lot of issues...

Perhaps, it is time for the government to step in and force car manufacturers to provide such features on their vehicles?

Until that happens, your best bet is to monitor the soot level yourself, and take the necessary actions to prevent the DPF from getting blocked.