Genuine OEM Audi Negative Battery Cable with Sensor, part number 8R0915181B. This essential cable connects the negative terminal of the vehicle's battery to the chassis ground, completing the electrical circuit. It features an integrated sensor or control unit, which is crucial for monitoring battery health, charge status, and overall power management. This component is installed directly at the battery's negative post. Weighing approximately 0.37 kg, this cable and sensor assembly is built for robust electrical performance. Choosing a genuine OEM battery cable with an integrated sensor ensures precise electrical conductivity, accurate battery data reporting, and seamless integration with the vehicle's complex power management system.