hi every one i brought a brand new rear passenger caliper for my 07 fabia vrs its been on the car  for 2 months now its clicking when I brake to slow down. any ideas cheers mike

Are the shims in place on the carrier?

Check all the bolts are tight for a start!

If they are I would remove it and refit checking that the springs on the pads are in the correct position being compressed by the caliper as it's bolted down.