Changed both brake pads and emergency brakes. Changed both calipers as well.what else could it be?
SOURCE: 2000 chevy 1500 silverado- rear brakes overheating
Have someone push & release pedal while at wheel with problem. See if it takes a while or slow to release. If yes, have wrench ready on bleeder screw, and try again, if it sticks/holds, crack bleeder screw, if it releases, I'd replace hose.
SOURCE: rear electronic patking brake/ caliper looks SCARY.
Your A8 and new shape A6s with electric parking brakes require an electric input to the vehicle to tell it to wind back the pistons/pads. Main dealers have this on their diagnostic equipment. You can also purchase after market tools that just do this operation, heres an example
http://www.alpha-bid.com/product244.html
I have only ever used a main dealer machine so im not sure how good an after market one will be. Im not aware of anyway of doing the job without an electrical input to wind back the pads, the motors are very powerful so I wouldnt reccommend trying it manually. Hope this helps.
SOURCE: cant compress piston on rear brake calipers
Use a caliper wind back tool which rotates the piston at the same time as pushing it back. Release the bleed screw to assist the wind back. If you use a brake hose clamp on the brake hose this will reduce the need to bleed the system.
SOURCE: cant depress brake caliper to replace pads
disc brakes on the rear of a vehicle have a screw out mechanism that attaches to the ebrake . this means that you must turn the caliper piston to recess into the cylinder.
open the bleed screw to make it move eazier.
Testimonial: "thanks for "bleed valve" tip. I had to take the whole caliper off due to debris in the chamber,the brakes have not been maintained prior to me."
SOURCE: changed frt and rear brake
The piston must be rotated as it is pushed into the caliper. There is a special tool for this that is sold at just about all parts houses. The tool looks like a small square with various pins for various applications that goes on the end of your 3/8 drive ratchet.
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