Just as I thought I would be one the lucky ones and have no problems with my coil pack, my engine starts to fire on only 3 cylinders. I started up my engine and it was idling very rough and when I started to pull away it sounded like a bag of shyt. Afer a quick few checks i noticed that 1 of the coils had died on me. I was surprised that there were no fault light flagged up on the dash. Does anybody no how much a coil costs? or if it can be done for free under warranty?