Brake Caliper Piston, Removing And Installing, Four-Piston Brake: Removing
- Brake caliper removed and separated from the hydraulic system. Refer to BRAKE CALIPER, REPLACING, STEEL BRAKES 1LC/1LD/1LE/1LF/1LG/1LH .
-- Tension the brake caliper in a vise with protective covers over the jaws.
TIP:
Make sure that the paint coat on the brake caliper is not damaged when removing the brake caliper pistons and the protective caps.
Leaking brake fluid increases the risk of injury.
Irritation and injury to skin and eyes possible.
- Wear protective eyewear.
- Wear safety gloves.
-- Place a cloth over the brake caliper chamber to catch any spraying brake fluid. Place another cloth tightly around the compressed air gun nozzle on the brake caliper.
Risk of injury due to sudden release of the brake caliper piston when pressing out.
- Never reach with the fingers into the brake caliper opening.
TIP:
Courtesy of AUDI OF AMERICA, LLCOnly one brake caliper piston can be pressed out at a time.
-- Hold the opposite brake caliper piston firmly in the brake caliper using the Piston Resetting Tool -T10145- -a-.
-- To prevent damage to the brake caliper paint coating, place a piece of rubber between the Piston Resetting Tool -T10145- and the brake caliper.
TIP:
If the same protective caps should be re-installed, use the Removal Tool :T40338 to remove them without damaging them.
-- Carefully pry the protective cap -1- and the seal out of the brake caliper with the Removal Tool -T40338- -2- using gentle lifting movements, and do not damage the groove for the protective cap in the brake caliper while doing so.
-- Block the other brake caliper pistons, for example, using wooden blocks -b-. In addition, place a wooden board -c- in front of the Piston Resetting Tool -T10145- -a- so that the brake caliper piston will not be damaged when pressed out.
Courtesy of AUDI OF AMERICA, LLC- The bleed screws are closed.
-- Position the compressed air gun nozzle on the hole for the brake hose and press the brake caliper piston out of the brake caliper.