Thanks for the feedback,

I am not suspecting the motor mounts, because I changed them less than two years ago, when the vibrations that time were continous, wether the car was cold or hot, and they would dampen when the gear is in neutral.

But this aint the case now, were the vibrations are much stronger and neutral has a very minimal effect, and they only occur after the car has heated up.

But as walgamuth suggested, I will change the plugs since I havent changed them for the last 3 years. I will try cleaning the injectors and see what happens.

Is the valve walgamuth mentioned inside the engine itself? And is its remedy if burnt simple/cheap.

Thanks