Genuine OEM Audi Headlight Vent Hose, part number 4G8941717A. This small but crucial hose is designed to allow proper air circulation and ventilation within the headlight assembly, preventing moisture buildup and condensation that can impair light performance and damage internal components. It is located on the left side of the vehicle's front headlight. Made from durable, flexible rubber or plastic, this hose weighs 0.025 kg and measures 0.21 m in length. Using a genuine OEM vent hose ensures the correct diameter, flexibility, and resistance to environmental factors for effective headlight ventilation and long-term clarity.