Genuine OEM Audi Negative Battery Cable, part number 8R0915181E. This critical component connects the vehicle's battery to the electrical system ground, facilitating power distribution and often incorporating a battery monitoring sensor. It is typically located in the engine bay, connecting directly to the battery's negative terminal. Weighing approximately 0.37 kg, this cable measures 0.27m in length, 0.27m in width, and 0.08m in height. Using a genuine OEM battery cable ensures correct electrical resistance, reliable current flow, and accurate battery management system integration for vehicle electronics.