We did this test...
we put the car in idle, and then try to pull out the coil from cylinder no 1 and the engine seemed about to die. Now, coil 2 and 4 all have same symptoms. Now cyl no 3, no after effect at all.[/QUOTE]

For all out there,
Just had similar thing on my Euro.
My no. 2 coil pack had failed.
What is described above is the same thing.....if you disconnect something and it has no effect, then that component is faulty and the cause of the problem.
On the K24 above, I guarantee no. 3 coil pack had failed......