Genuine OEM Volkswagen Poly-V-Belt, part number 04E145933L. This serpentine belt is responsible for driving various engine accessories, including the alternator and air conditioning compressor. It is located on the front of the engine, wrapping around multiple pulleys. This part weighs 0.089 kg. Genuine OEM belts are constructed with high-quality materials to ensure consistent tension and long service life, preventing premature wear and slippage.