Any Focus guru's on here know what might be wrong with my mates 2009 Focus 1.6 Diesel GTEC.
When he starts it up from cold in the morning it smokes and the tick over is lumpy. When it warms up it cleares up.
Been to local Ford dealer, they had the car for 8 weeks, yes 8 weeks and cant find the problem.
should say they have acknowledged there is a problem but cant find it.

Anyone had this problem.
Thanks in advance.