Genuine OEM Audi Engine Oil Filler Pipe, part number 4M0115301M. This pipe is an essential component that provides a clean and secure passage for adding engine oil to the lubrication system. It is typically located on the top of the engine, beneath the engine cover. Measuring approximately 0.33 meters in length, this pipe is designed for durability and resistance to engine fluids and temperatures. Choosing a genuine OEM oil filler pipe ensures precise fitment, proper sealing with the oil cap, and material integrity to prevent leaks and contamination.