And when your driving with the window halfway down,the window kinda rattles a bit....its you window regulator.
I have had mines replaced once already, and it did sort it. But the replacement just started doing the same thing. It is covered under warranty. So i'm taking it back to get replaced again at a different garage.
I find it strange, that it only happens on the drivers side.
The fiat tech at arnold clark said its common on puntos but first time he had seen it on a stilo and that fiat had moved the goal posts, they used to be screwed on but now they are riveted so they had to drill out the rivets to fit the new one. No doubt they botched it.
Put the window half way and the put a bit of downwards pressure on it, if you feel it creak and see it move a bit your regulator is gone.