Requires a tool that not only pushes in the caliper but also rotates it as it goes in.
Clockwise
Calipers can be rebuilt but if the pistons are scored caliper will require replacement
I just did mine. Use a screw driver to press the brake pads away from the rotor and compress the caliper pistons back some so you can remove the caliper off of hte rotor. Losen and remove the bolts to the brake caliper. DO NOT DISCONNECT the brake line from the caliper! Get you a c-clamp and a piece of 1/4 board about 4 inches long. Once you have removed the caliper from the mount and removed the brake pads support the caliper with one hand. Place the wood over the caliper pistons and using the c-clamp place it over the wood and center of both pistons and other side of caliper to compress the pistons back into the caliper. Make sure you DO NOT PINCH the rubber boots on the pistons. Once you have compressed the pistons back into the calipers install your new pads and calipers back on the mounting surface and tighten the bolts back to torque specs.
How do you get the brake piston to retreat back in caliper ?
a volkswagen? . . . . . bout 10 minutes
How do you compress the rear brake caliper pistons to install new pads on vw polo 08 model?Read more: How_do_you_compress_the_rear_brake_caliper_pistons_to_install_new_pads_on_vw_polo_08_model
Jack up and block the car remove wheel pry back the caliper pistons with out breaking the pistons then remove caliper and pads.Reverse to install and pump brake pedal until it gets hard.
Caliper pistons should retract if calipers are in working order. Calipers need to be removed and rebuilt or replaced. A brake fluid flush is highly recommended.
On the front calibers they should move in when compressed, the back ones have to be screwed in.
Remove the wheel from the car.With a big screw driver pry on the caliper placing the screw driver between the caliper pistons. This will collapse the pistons allowing you to remove the caliper.Remove the caliper pin retaining spring.Remove the caliper pins.Next remove the brake pad retaining clips, found in the middle of the caliper.Remove the brake pads.Remove the two bolts holding the brake caliper in place.Now you're able to remove the brake rotor.An instructional video has also been included below.
Unlike the front calipers, pistons in the rear usually have to be rotated to compress them.
Lift the vehicle, remove the tire, remove the brake shoe/caliper, and remove the old brake pad. Put in a new brake pad, replace the brake shoe/caliper, replace the tire, and lower the vehicle.