Yes surely with a system like this they should have added a timer when it starts regenerating that counts down and says that's it finished. Otherwise I'm sure a lot of people will have failed regens.
Around town if going 40, would it be better for dpf to have it in 4th gear or is 5th fine for this speed?
whats the point in having a counter to let you know its carrying out a regen? new diesels are meant for motorway use and are no good round town. which driver wants to know when its carrying out a regen. on most cars there is an amber warning relating to a DPF wanting a regen and it goes out when its finished
a regen is difficult to achieve in town driving as you are in a stop/start situation. you need to be on a continuous run e.g. a motorway to keep your speed up.
haven't you noticed that some newer smaller cars are coming without a diesel engine option?!
all i can say is you have bought or been sold the wrong car for your driving style.