This is the difference between us and other specialist. Single fault for dpf being blocked. Knowing these systems and these engines we new it was not that simple the low pressure egr cooler was blocked with adblue and also coolant meaning the cooler had failed . Causing pressure on the dpf which then triggers a code. To remove the dpf and cooler the front of the car needs to be removed and cleaned along with fitting a new low pressure egr cooler . This is a £2000 job no on car cleaning would of