Genuine OEM Audi Rear Quarter Panel Vent Grille, part number 4M0819181B. This grille is designed to be installed in the rear quarter panel, facilitating essential air circulation within the vehicle while simultaneously protecting the vent opening from debris and foreign objects. It plays a role in maintaining cabin air quality and pressure equalization. Made from durable black plastic, it weighs approximately 0.0956 kg. Using a genuine OEM vent grille ensures precise fitment, proper airflow characteristics, and a factory-matched appearance, crucial for both functionality and aesthetic integration with the vehicle's bodywork.