Any updates on where the noise is coming from?
It might be the linkage on the wastegate actuator rod that's rattling, well it is on mine. Fiat are not being very helpful at all with the situation. Just trying to get as much money out of me as possible it feels like. I was wondering if an upgraded actuator would solve the problem but everyone I've spoken to seems to think only a new turbo will cure it. The rattling is really bad on mine though, verging on being embarrassing to drive so I am desperate for a fix aha!