[fortythirtyfive]

Originally Posted by KAY-OS

So I brought the friction ring to the garage. They are certain the sound comes from between the outer brake disc and the wheel, instead of between the inner brake disc and wheel bearing flange. So they installed the friction plate between the outer brake disc and the wheel and the sound has dissappeared! Very strange but there's no more annoying ticking noise so I'm happy.

Mine is back after trying new pinch bolts, greased up pinch bolts and the metal friction rings - super loud as well

You say you applied the friction rings to the outer disc, are you talking about actually placing this in-between where the wheel actually touches the disc?! From the TSB BMW recommends placing them behind the discs where they touch the hub