Genuine OEM Audi Brake Servo Vacuum Pipe, part number 8W0611931CK. This essential component is responsible for transmitting vacuum pressure from the engine to the brake servo, providing power assistance for the braking system. It connects directly to the brake booster, ensuring efficient and responsive brake pedal operation. The pipe measures approximately 0.59 meters in length and weighs 0.107 kg. Using a genuine OEM vacuum pipe guarantees the correct routing geometry, material integrity, and pressure retention, which are critical for consistent and safe braking performance.