Speed dependent noise from engine compartment

Hello, the MKL lights up at my Mini One Convertible, EZ 06/2015. 97,000 KM. I’ve been hearing a clacker from the engine compartment for some time now, when you’re gasting. Also while driving. Do I kick the clutch, it’s gone…. Does anyone have any idea? Chain tensioner? Steering chain? Have only been on 14.4. appointment in the workshop. Thank you!