I just thought I would add a couple of videos, and just wondered if anyone would have a suggestion as to what this sound is ?

This one is from within the car, and the video audio doesn't do it any justice, as it's truly very loud


The second video is from the engine bay, and it's not the belt squeal, although that is also new, it's that low rumble/ticking sound, it's like a chugging ?


Thanks