Not sure if this has been covered already on here?
My 159 had its DPF removed / remap almost a year ago and I'm fairly sure the EGR was permanently closed... Fairly recently at pottering speeds... say pulling up at a junction and still moving then accelerating to set off it has started to do the odd hesitation every now and then??
Anyone else had this issue? will it get worse? anything to look out for to stop it? Mapping?