Clattering noise from underneath over bumps?

[bazking69]

As per title really. Over bumps, there is a metallic clattering noise from underneath the car. My first suspect was the exhaust, but in situ I can't see any excessive movement or anywhere where it could be hitting something.

Any ideas?

[bazking69]

03 Cooper BTW.

[Defcon5]

Does it heppan when a particular axle goes over the bump? Checked the exhaust heatsheilds etc?

[Hughesie]

I dont get a clattering but i do get a scraping over speed humps and it seems to be an under engine plastic spoiler/lip.

[bazking69]

Definately a metallic clatter, and it does it randomly over bumps. Having had it up on the ramp there is nothing obvious.