Well Ford originally replaced the crankcase vent pipe and they said that it fixed the problem but as soon as i picked the car up i could tell the problem was still there. I paid 2 hours labour plus parts which came to around £200.
The car went back to them and they had it for a furthur 3 days and in the end the car needed a ECU software update. I didnt have to pay for this.
Problems now fixed and been fine for the last couple of months.