I've had my TDCi 2.0 Ghia for just over a month now (1300 miles), and on-the-whole have been very happy with it. However, recently, it's developed a couple of problems. Has anyone else experienced this, and if so, what was done about it? The problems are: - At cold start the engine is lumpy (definite vibration in the cabin), and the ref counter fluctuates ~100rpm - but suddenly - not a kind of "hunting" increase/decrease. - As I pull away, and even when cruising at a steady speed of say 25mph in 3rd, I can feel the car kind of "mis-fire" as it were, and occasionally feel that when I app