2011 E70 XDrive 30d Rattle

[Jusbok]

Hi all

Still having trouble diagnosing the intermittent rattle that the 30d is having.

I believe it has something to do with the power steering - could be pump?

When it starts to rattle, I have found I can turn my steering wheel (whilst idling at a stand still) and as long as I hold the steering wheel in position it stops?

anyone had an apparent rattle at idle that just drives you crazy and ended up being power steering issue?

I've had this at the mechanics and they have failed to diagnose...

No error codes, no play in any drive belts etc, doesn't sound like timing chain issue, no idea...

Cheers