Why does my Audi A1 engine make a rattling noise when idle?

I recently noticed that my Audi A1 engine makes a strange rattling noise when it's idling. It's a 2015 model and has only done around 50,000 kilometers. Can anyone explain the cause of this and if it's normal for this car?

This rattling noise could be a sign of worn engine bearings or a failing water pump. I recommend taking it to a mechanic for a diagnosis as soon as possible to avoid any further damage.

I had the same issue with my A1 and it turned out to be a loose heat shield on the exhaust. Easy fix with a little bit of welding. Hope this helps!