[///Mik3]

So I've been experiencing this for a couple months now and haven't been able to diagnose it. It does not happen all the time, in fact it's really inconsistent which is what makes it difficult to diagnose.

It sounds like a metal on metal *tap* Kinda high pitched and noticeably loud. It's just a single click right at the start of applying the brakes. It doesn't seem to have any affect on braking performance that I can tell. Also it seems to happen more often when switching in to reverse and then hitting the brakes but it does happen when moving forward as well. Not sure if connected at all but it seems like it happens more when the brakes are warmed up from city driving, but it doesn't happen much during the first few cold minutes of driving.

I just finished removing & reinstalling the caliper clips and confirming that the caliper bolts and caliper carrier bolts are all tight. Still happens.

Anyone have any ideas?