I’ve put a post on here a few weeks ago about my CX 5 stalling could not find out what it was. They were no error code but after doing a lot of research i have realised that the 2.2 diesel needs to be warm and have lots of long runs which I don’t do , so my suspicions now are pointed toward the DPF filter would a clogged DPF filter cause a car to stall. , it’s mainly doing it when the engine is cold. And at junctions or when the car is travelling slowly at low revs. .?