Genuine OEM Audi Rear Left Brake Caliper, part number 4F0615403F. This critical component is responsible for applying hydraulic pressure to the brake pads, clamping them against the rotor to slow or stop the vehicle. It is specifically designed for the rear left wheel position and includes an integrated electronic parking brake motor. Weighing approximately 3.11 kg, this caliper is constructed for durability and precise operation. Choosing a genuine OEM brake caliper ensures exact fitment, proper hydraulic function, and the correct electronic parking brake integration for safe and consistent braking performance.