So my annoying rattle turned out to be a broken spring (no surprise). Here's the piece...
And here's the damage (near-side rear)...
Is this where the break normally occurs? And do I need to fix this promptly or is it still safe to drive in the interim? And is there any chance explaining to BMW that it's an obvious fault - my car's no longer in warranty, although Sytner did replace the off-side rear whilst it was still under warranty last year.
Thanks all, I know this is a well-posted about subject so apologies for any repetition...
:thumbsdown: 
And here's the damage (near-side rear)...
Is this where the break normally occurs? And do I need to fix this promptly or is it still safe to drive in the interim? And is there any chance explaining to BMW that it's an obvious fault - my car's no longer in warranty, although Sytner did replace the off-side rear whilst it was still under warranty last year.
Thanks all, I know this is a well-posted about subject so apologies for any repetition...
:thumbsdown: 