I am doin the pads along with other maintainance things on my s5, i have the 4 piston calipers, i cant get the two pistons on the inside of the caliper to go back in. Used a clap wouldnt budge. Can anyone offer any help what should i do to get these these back into the caliper so i can fit the new pads in ?? thax

 

if i remember right but not sure mazda might be the put in type of piston, what u do is either a get 4inch c- clamp and push it down so that way you dont have to mess with the brake fluid, and represurize the system.

 

i left the old pad in there and put the clamp on that also i put a piece of scrap aluminum on the back of the caliper so i didnt mark it up and then used a clamp to push them back in worked like a charm

but i also had the caliper completly off the car cause i was puting in SS lines as well

 

i cant do it with a c-clamp ive tried they are too strong i guess you could say. i got the 2 pistons on the outside back in easy but the inside ones are too tough. any other suggestions

 

for some reason they are too stiff to use a clamp i have a set from my 88 that are off and i couldnt even push those back in with the clamp, Whats the deal here. Neone else with some help?

 

i do brakes with c clamps all the time.. work like a breeze.. it a little hard to push in but the clamp always does the trick

 

novastyle do u d o one piston at a time or 2 at once

 

try one piston at a time. should work. if they are honestly jammed, you are probobly looking at a caliper rebuild, but try doing them one at a time first.

 

If you cant get them to push back in you could try forcing them outward to loosen them. Are the callipers of the car ?

 

ya they are on the car

 

Put something between the pistons and brake disc to protect the disc then press the brake pedal to force them out. It might help loosen them.