The Genuine BMW Degassing Hose Battery - 61217601940 is a high-quality replacement part for BMW vehicles. This hose is responsible for removing excess gases from the battery and preventing buildup of pressure, which can cause damage to the battery and other components. It is made of durable materials to withstand the harsh conditions under the hood and ensure long-lasting performance. This degassing hose is an essential component for maintaining the health and functionality of the battery, ensuring reliable starting and powering of the vehicle. It is an authentic BMW part, designed to fit perfectly and function seamlessly with the rest of the vehicle's systems.