Genuine OEM Audi Door Window Regulator, part number 1K5837461B. This essential component controls the smooth and reliable movement of the door window glass, allowing it to be raised and lowered. This is the front left side window regulator. Weighing 2.788 kg, this assembly is built to factory specifications for precise fitment and operation. Choosing a genuine OEM window regulator ensures exact cable tension, motor calibration, and track alignment for quiet, consistent, and long-lasting window function.