Renault Megane dymanique 2005 - Engine difficult to start when cold - skippythebushkangaroo

First thing in the morninig the engine engine coughs and splutters a few times before it fires up. The when you set off it tends judder a few times. Once running it is fine. All the pencil coils are ok and when i did a recent service one of the plugs was oiled up. This as been going on for a while now and have noticded that the same plug has been oiled up before. The engine has only done 39 thousand miles. There are no warning lights on and the car has passed its mot. Any clues? Chris

Edited by skippythebushkangaroo on 15/03/2012 at 20:24