<h3>I have 03 S500 BENZ Car shakes when in drive idling when you put in neutral runs smooth. Mind you RPMs never change what the hell is this</h3>
So you car shakes even when Idel? and the RPM's never change.
Can I ask you when you had your spark plugs changed last time? I will not go as far as to say that it's an Engine problem, cause it's not. But I think it might be an issue with a few components.
So yea, can you give me some information?