Have you checked steering rack? lift car up and find the shaft connecting steering box with steering rack and try to move it , see if it sits tight or loose, if loose try to move it and se if it will reproduce noise you hear.
I had wondered if it might be the pads shaking in the calliper as the suspension moves
Anti rattle clips would prevent that, I lost a rear one and it was annoying but not that bad. Bought a new one and put it on wrong, now the left rear out board pad doesn't make full contact with the rotor. The clean part of the disc is about half as wide as it should be. No brake pull, just annoying to look at.
Cosmos schwartz metalic Sparco strut brace factory X-brace 55w 6000k HID w/LED angel eyes smoked Lamin-X blacked out sidemarkers,tails and brakelights. DDM smoked corners and pedals. 35% tint all around, Prosport water temp and oil pressure gauges, Home Depot lip, M3 rear diffuser ASC-T delete.
Well I finally got to the bottom of the strange noise.
I managed to narrow it down to the rear by listening very carefully to the sound when hanging out the passenger side window.
Two things, 1 the anti rattle spring was missing from the calliper. How did I not spot that ? 2 the inboard brake pad has three metal springs that locate it into the piston. One had sheared off and the pad was loose.
In five years of owner ship, I have had no cause to change the rear brakes. Fitted new discs and pads. No more rattle, job done.
Thanks to all who took the time too try help me out.
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