VXOC Astra-J/GTC

Hi Everyone, 

My 2017 1.4T with just under 50k miles on it has started to make an engine noise, like a chudder.  This is at idle and increases with RPM.

Ive captured it on video. Wasn't sure best way to host the video so I've got a 

• https://imgur.com/a/brIhmnC
  
• https://drive.google.com/file/d/1yej6qT5...U3zNk/view
  

Any idea what this could be? 
Cheers

(19:th-Jun-2021, 00:10:42)Nathan191210 Wrote: [ -> ]Hi Everyone, 

My 2017 1.4T with just under 50k miles on it has started to make an engine noise, like a chudder.  This is at idle and increases with RPM.

Ive captured it on video. Wasn't sure best way to host the video so I've got a 

• https://imgur.com/a/brIhmnC
  
• https://drive.google.com/file/d/1yej6qT5...U3zNk/view
  

Any idea what this could be? 
Cheers

sounds serpentine belt related to me, is it coming from the left side of the engine? could be the belt or a pulley. if its never had it changed its probably the belt at 50k.