Bonnet rattle

[johnp68]

I think I've managed to track down the source of a rattle that I can hear sometimes when I drive over bumps. It seems to be caused by the bonnet catch being slightly loose, so that it rattles when I press the bonnet (and when I bounce the front suspension manually).

Does anyone know if it's easy to tighten, or should I take it to a dealer?

Thanks
John