Had the orange Electronic/Electrical fault light on (Box with wavy lines) and loss of power intermittently, Code reader shows P1453 Manufacturer Control. Been getting more and more frequently so did some googling and seems like its a common problem with 1.5 dci even on other cars like clio's etc. Buried down the back of the engine behind the exhaust manifold is the DPF diff pressure sensor and the rubber hoses from the DPF to the sensor perish and split. Took me about 2 hours to replace the hose job done. Just need to remove the air box to give some access but most of the job has to be done by feel alone as unable to see,
Thought I would post in case others come across this fault.