The fix for a clicking noise from the area of the passenger front pillar/dash in a 2014 Mazda3 (when driving over small road bumps etc). As outlined in Mazda technical service bulletin (TSB 09-001).
I found a copy of the TSB at this link ..
The TSB shows additional places to attack with the hammer and screwdriver, but I just needed to do the ones in this video. I have since taken the car for a long drive and the clicking noise is GONE!
Note: I had first tried to just lubricate the area shown, but that didn’t help at all.
There is a related reddit discussion at..