Genuine OEM Audi Lower Engine Oil Sump, part number 057103602AM. This vital component is designed to securely hold the engine's lubricating oil at the very bottom of the engine, serving as a reservoir for the oil pump and allowing contaminants to settle. It is positioned directly beneath the engine block. Constructed from durable metal, it measures approximately 0.415 meters in length and weighs 1.696 kg. Choosing a genuine OEM oil sump ensures precise dimensions for a perfect, leak-free seal with the engine block and proper baffling to prevent oil starvation during dynamic driving conditions.