Guys, my car is shaking yet again when cold... I posted this video as the engine also makes a funny noise when shaking...

Give me your thoughts please.

That sounds like the clutch on the alternator pulley. You might as well change the tensioner, belt and pulley. The bits are cheap, but you need a special tool which costs as much as the parts. Some places tell you to get a new alternator, but it isn't necessary.

A failing clutch would also account for vibrations as its job is to smooth out the alternator/engine snatches.

Just read your other posting - sounds like you've replaced the tensioner and pulley already, but not (I think) the alternator pulley. Best of luck.

Locking post as it posted twice for some reason...