Got an engine problem with my car. It doesn't sound nice.

Booo

Oh no...

It sounds and feels the same as the issue two months ago where the exhaust collector (between engine and turbo) got loose.

maybe there was a rock or something?

or a piece of ice?

Not likely. Eihter a loose collector (from engine to turbo) like last time of a stuck valve. I suspect the collector.

Hmm. Well I hope you get an answer soon.