Genuine OEM Audi Rear Brake Hose Retainer, part number 1EA611793. This small but crucial component is designed to securely hold the brake hose in its intended position, preventing it from chafing, vibrating, or becoming dislodged during vehicle operation. It is specifically located on the left side of the rear brake assembly. The retainer weighs approximately 0.04 kg and measures 0.05 m in length, 0.048 m in width, and 0.025 m in height. Using a genuine OEM retainer ensures the correct mounting points and material strength, which is vital for maintaining the integrity and safety of the brake fluid lines.