Genuine OEM Audi Turbocharger Oil Return Line, part number 04E145735J. This critical component is responsible for efficiently returning hot oil from the turbocharger back to the engine's lubrication system, ensuring proper turbocharger cooling and engine oil circulation. It is approximately 0.21 meters long and weighs 0.068 kg. Choosing a genuine OEM oil return line guarantees the correct heat resistance, pressure integrity, and precise routing to prevent leaks and maintain the longevity of the turbocharger and engine.