Guys,

Thanks a lot, even I didn't understand any thing from what Steve said, but I can see that he is really brillint in MB technition.

Anyway, about the spark plugs they are new, and about the compression test, they did it, and they gave me a small sheet of paper which was graphed on it some arcs.
About the compression test arcs they are all above 11.5, one of them is 12.3,And they didn't say anything wrong in it.

Guys, Do you think, it's the spark plug wires who make those problems, and they need replacement please advise.