Genuine OEM BMW Oil Return Pipe, part number 11429797647. This pipe is essential for the exhaust turbocharger system, allowing oil to return from the turbocharger. It is located in the engine assembly, connecting to the turbocharger. The part weighs 0.126 kg. Genuine OEM oil return pipes are constructed from materials that withstand high temperatures and pressures, ensuring reliable lubrication and preventing turbocharger damage.