Genuine OEM Volkswagen Windscreen Washer Reservoir Tank, part number 5C6955453S. This essential component holds the fluid required for cleaning the windscreen, ensuring clear visibility during driving. It is typically located in the engine bay. Constructed from durable, translucent plastic, it measures approximately 0.57m in length, 0.25m in width, and 0.3m in height, with a weight of 0.601 kg. Choosing a genuine OEM reservoir ensures a precise fit, correct fluid capacity, and resistance to common washer fluids, preventing leaks and maintaining system integrity.