Rattles in the engine of VW Touran 2 1.6TDI

Hello, my VW (Diesel) has recently had the problem that it is so funny and smells exhaust gas. Has happened in one stroke at speed 30. No error message in the display. I found this video in another forum. That’s how it sounds with me. Is a Touran 1.6 TDI Year 2019 Maybe someone knows the problem already malö alle eion nice weekend