23-04-2014, 12:05 PM
Yup, its gonna be the sliders... 306 brakes are all single piston.
Remove the bolts (counterhold slide pin to stop it spinning), pull the sliders right out and re-grease them, re-assemble and should be fine.
Remove the bolts (counterhold slide pin to stop it spinning), pull the sliders right out and re-grease them, re-assemble and should be fine.