For those of you with a new diesel car, how often are you finding the DPF goes through it's recycle program? You may notice the fan going full whack when you stop, a very warm engine, the stop/stop disabled, the odd smell of hot fluids etc. I know this is a normal thing for the car to be doing, but how often should it be doing it? Does it depend on the weather, the number of miles driven, or how you drive and how much right foot you use etc? Also, do you notice any pattern to when the car does it? Driving in traffic, driving with very low revs taking it easy etc, or does it do it after so many hours of running? I've noticed mine has done it a couple of times recently. The first thing I notice is the start/stop suddenly stops working. Then when I get out, the fan is usually going hell for leather for a few minutes! The car has only done 550 miles. It has been driven very carefully so far, to try and get as much economy out of the car as possible. Maybe that's related?