I have a problem when on starting from cold ie the car has been left overnight to cool right down and ONLY when the outside temperature is around 5 degs C or lower.

On starting the vehicle from cold, within a few seconds the warning "Engine fault, arrange repair" orange light comes on accompanied by an audiable warning together with the service light on the left hand side of the display. As soon as the warning buzzer has finished its 3 buzzes the warning light goes out leaving only the "service" light on. This happens on tick-over, as soon as I touch the accelerator the service light goes out. The whole cycle repeats itself after a few seconds. As I drive away this occurs again as soon as I take my foot off the acceleator only to disapear as soon as I accelerate again.

After about 10 minutes the problem disapears and does not reappear while the engine is warm infact even if the outside temperature remains low even if restarting the vehicle after a few hours the fault does not reappear, only when it is left to fully cool down say overnight.

I have had the car from new, it has covered 63k easy miles, is fully dealer serviced. The driving in mainly in 70 or 100 mile runs mainly dual carriageway or motorway with no stop start journeys, and averages 54 to 58 mpg.

The dealer has replaced the fuel filter , then the fuel pump with neither curing the problem. I must add that the dealer has had the vehicle over night when it has been cold so that they cold put it on the diagnostic check when the fault was occuring.

I am currently waiting to hear from them to see whaere we go from here!

Has anyone experienced this problem or have any possible idea what the problem is, any help would be appreciated.

Many thanks