Genuine OEM Audi Headlight Washer Hose, part number 4M8955663A. This corrugated plastic hose is designed to deliver washer fluid from the reservoir to the headlight cleaning nozzles, ensuring clear visibility. It is engineered to withstand exposure to washer fluid and varying temperatures. Choosing a genuine OEM hose guarantees correct routing geometry, proper fluid resistance, and secure, leak-free connections, which are vital for the effective operation of the headlight washing system.