As the title suggests. The car is a diesel and only has 400 miles o the clock. It now starts from cold with a lumpy/irregular idle. This seems to vanish up on warm up. I had a TDi VW Golf many years ago that dis the same and they stated it needed new fuel injectors. Any ideas?

mine is very slightly lumpy when cold but then it goes after its warmed up. Asked the dealer to look atit when it was in for a service and they said that it was just the cold and nothing was being brought up on the diagnostics as being wrong with it. 9000 miles later and no problems!

Could be a tank of dirty fuel.

Were do you fill up?? reason i ask i used Asda (i was right on empty and its 2 secs away) few days ago normally its Shell, anyway my Caddy van is running like a bag of nails i tossed in some millers eco max additive to help but its not made a whole load of difference. So my guess is dirty fuel.