Clutch rattle...Help

[Prodigy1978]

My W204 c class has developed a rattle
when the clutch is engaged to
The biting point noticed this in neutral, never noticed the noise before although usually have the radio on so may of been there for quite a while. The noise sounds like a bunch of marbles rattling if that makes sense only when releasing near the end. I have a video but can not
Attach for some reason. Any ideas.....I am fearing the worse £££££

 

[grober]

If you have a dual mass flywheel it may be on its way out-do a search for DMF on the forum.