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In this video I demonstrate how to retract the rear brake pistons on the calipers from a BL Mazda 3 (2009 to 2013).
Note that front and rear brake pistons operate differently. Front brake pistons only need compressional force to retract. Rear brake pistons need compressional AND rotational force to retract.
Through the video I show you how to achieve compressional and rotational force using a G-clamp and a set of vice grips. This method does work, but is a little fiddly, and you need to be careful not to damage the piston or the piston dust-boot.
Right at the end of the video I show a graphic of an example of the purpose-built tool, if you would prefer to use one.
Camera Goddess: Cazzie.
TAGS 2009 2010 2011 2012 2013 rear back brake break Vernier caliper calliper piston compression rotation vice grips G-clamp needle nose pliers.