Genuine OEM Audi Vacuum Pump, part number 05A145100A. This pump generates the necessary vacuum for various vehicle systems, often including the brake booster, ensuring consistent performance. It is typically mounted to the engine, integrating with the engine's operation. The unit weighs approximately 1.109 kg and measures 0.17m in length. Choosing a genuine OEM vacuum pump guarantees precise pressure regulation, reliable operation, and seamless integration with other vehicle systems, preventing potential performance issues.