Genuine OEM Volkswagen washer water reservoir, part number 5Q0955453BG. This reservoir stores the fluid for the windshield washer system. It is typically located at the front of the vehicle, often near the radiator or headlight assembly. This part is crucial for maintaining visibility by allowing the driver to clean the windshield. Genuine OEM reservoirs are designed for precise fitment and durability, ensuring a leak-free seal and proper function of the washer pump.