Always replace calipers in pairs (front/front, rear/rear) - never replace just one of them. To remove, loosen the wheel lug nuts, raise the vehicle, and support it securely on jackstands before removing the wheels. Detach the brake hose bracket from the steering knuckle, remove the banjo bolt for the brake hose fitting (or line fitting on front S-type calipers), and disconnect it from the caliper, plugging the openings immediately to keep contaminants out of the brake system and minimize brake fluid loss. If only accessing other components, do not disconnect the hose. Next, remove the caliper mounting bolts and then the caliper itself, removing the caliper bracket from the steering knuckle or rear knuckle if necessary. For S-type models, there is no caliper mounting bracket for the front brakes, so remove the front caliper directly from the steering knuckle. For installation, reverse the removal procedure, tightening the caliper mounting bolts (and bracket bolts, if removed) to the specified torque values. Install new sealing washers on both sides of the brake hose banjo fitting and tighten the banjo bolt to the specified torque. On S-type fixed calipers, ensure the line fitting is tightened securely. Reattach the brake hoses to the brackets and tighten the bolts securely. Finally, bleed the brake system, install the wheels and lug nuts, lower the vehicle, and tighten the lug nuts to the specified torque.