Lexus 47750-0E010 Front Left Disc Brake Cylinder Assembly

Loosen the wheel lug nuts. Raise the vehicle and support it securely on jackstands. Remove the wheels. Remove the brake hose banjo bolt and disconnect the hose from the caliper. Be sure to plug the hose to prevent contaminants from entering the brake system and to minimize brake fluid loss. If you're only removing the caliper for access to other components, you don't need to detach the hose. Remove the caliper mounting bolts. Remove the caliper. If necessary, remove the caliper bracket from the steering knuckle or rear knuckle.

Using a scan tool is necessary to rotate the nut inside the rear caliper piston, allowing the piston to be compressed for installing new brake pads or discs.