Genuine OEM Audi Battery Cover, part number 420863387D. This cover is designed to protect the vehicle's battery from dirt, moisture, and other environmental factors, contributing to its operational lifespan. It sits directly over the battery in the engine bay or trunk. Constructed from durable materials, it measures approximately 45.8 cm in length and 11.5 cm in width. Choosing a genuine OEM battery cover ensures a perfect fit, proper sealing, and resistance to engine bay temperatures and fluids, maintaining the original protective integrity.