Genuine OEM Audi oil pipe, part number 07L145140G. This pipe is responsible for the pressurized delivery of oil to the turbocharger assembly. It is located in the intake and turbo assembly as shown in the diagram. Genuine OEM oil pipes are manufactured with precise internal diameters and high-pressure fittings to ensure consistent flow rates and prevent leaks, which is critical for the longevity of the turbocharger bearings.