Fiesta WT cutting out

[stehowardtlr]

Hi there, just wondering if anyone has this happen or can shine some light on my problem.
I've got a Fiesta WT 2012 1.6CL. Its got 70000 kms on it now. It cuts out now and then when sitting in traffic. It even cut out while I was changing gear the other day but never cuts out whilst actually driving. Had it back to Ford twice but they cant find anything wrong with it.
Its getting very annoying now, its going back in on Thursday but I already know they wont find anything wrong again.
Anyone else had similar problems?

Cheers Steve