Should the Brake Pads Be Retracted or Released When Replacing Them?
2 Answers
When replacing brake pads, retraction should be performed first. Method for replacing brake pads: Remove the tire to expose the brake caliper and brake disc. Apply lubricant to the screws or nut gaps that need to be loosened or removed. Hang the brake caliper with a rope, then remove the old brake pads. Lift the hood and unscrew the cap of the brake fluid reservoir. Align and insert the new brake pads, ensuring the inner pad with the wear warning indicator is installed on the inner side. Precautions for replacing brake pads: Check whether the replacement brake pads are genuine parts (i.e., matching products). Verify the integrity of the product packaging, the presence of anti-counterfeiting marks, and whether the packaging labels match those on the brake pads. Also, confirm that the product model matches the content on the certificate of compliance.
When replacing brake pads, you retract the piston in the caliper rather than releasing it. The piston gradually extends as the brake pads wear down. Since new brake pads are thicker, you need to push the piston back in, otherwise they won't fit into the caliper. I often do this myself, usually using a C-clamp to hold the piston and gently tightening the clamp to press it back. Be careful not to damage the piston during the operation, as it's connected to the brake system, and forcing it might damage the caliper. By the way, it's best to open the brake fluid reservoir cap before pressing the piston back, otherwise the fluid might be forced out and make a mess in the car. The whole process is quite simple. After finishing, don't forget to pump the brakes a few times to adjust the position. Remember, regularly checking the thickness of your brake pads is important to prevent sudden problems.
