Genuine OEM Audi Oil Cooler Return Line, part number 8E0117316. This line is responsible for returning cooled oil from the oil cooler back into the engine system, maintaining optimal engine oil temperature and lubrication. It is positioned at the front of the vehicle. Constructed with a combination of flexible hose and rigid pipe, including a braided metal section for durability, it measures approximately 0.97 meters in length and weighs 0.701 kg. Choosing a genuine OEM oil line ensures precise fitment, correct fluid resistance, and long-term reliability for critical engine cooling.