Hi everyone, first time poster I hope someone can help. I have a 2006 MKV 1.9 TDi VW golf. The car has developed an intermittent problem which I am having great difficulty diagnosing. When the car has been running for a while and is at normal temperature it intermittently cuts out when I stop at a junction or traffic lights. There is no noise and no lights come on it just cuts out and then when I try to restart it I might have to turn it over for a couple of minutes pumping the accelerator to get it to start. It will then run very roughly when it is idling and will generally cut out again the next time I stop. When this problem isn’t happening it starts perfectly every time and runs perfectly. As I said no warning lights come on, I have had a diagnostic run on it and there are no errors showing. The fuel system has been cleaned out and the pumps are fine. I am not sure if it is related but when I get onto the motorway in 5/6 gear and I accelerate hard the car jumps a lot, if I easy off the accelerator it runs fine again. I have done some research and I am aware it could be an electrical fault like a ground but I wondered if anyone had any experience of this.
Hope someone can help.