Brakes are the standout big-ticket wear item. The P30/P31 development-package cars use two-piece compound rotors that owners describe as expensive, with a full P31 brake job quoted around \$4,500-6,000 with labor; many owners switch to cheaper single-piece hats. …
Brake costs, especially P31 two-piece rotors
Mercedes-Benz C63 AMG (W204) · ownership