I was getting hard cold start issues and DPF & Engine warning lights coming sending the car into limp mode. I tried cleaning the EGR etc but In the end I got blanked and deleted from software, also gutted the DPF and deleted the software, cam timing readjusted as it was 3 degrees out and a remap at the same time.
Dramatic Change! 1 year and 6,000 miles later, car starts perfectly and goes like stink. Pulls well from right down at 1400rpm. Crazy fast mid range overtaking power. Will spin up in 4th if you boot it on a wet road.
Fuel economy wise I find it’s definitely better if I drive economically, but worse If I drive with a heavy foot!