Genuine OEM Volkswagen Battery Monitoring Control Unit, part number 5WA915181B. This control unit is essential for managing and monitoring the vehicle's battery performance, optimizing charging cycles and providing critical data on battery health. It integrates directly with the battery terminal. Weighing approximately 0.21 kg, this module ensures accurate power management. Using a genuine OEM control unit guarantees correct electrical specifications, precise sensor readings, and reliable communication with other vehicle systems.