Had an issue this morning.... Driving to work at a speed that can only be called illiegal, came off the motorway and got onto a side road... the car was running like it was only firing on 3 cylinders... got into the car park at work at it was idling so badly it was almost stalling.... had a quick look under the bonnet checked leads and wiggled the usual stuff but could not see anything obvious, anyone point me in a direction to look further at.... the car is A4 2.0t on an 06 plate...