Genuine OEM Mercedes-Benz Washer System Pump, part number A0008604826. This electric pump is responsible for drawing washer fluid from the reservoir and delivering it under pressure to the windshield washer nozzles. It is typically located within or near the washer fluid reservoir. A functioning pump is essential for maintaining clear visibility by allowing the driver to clean the windshield. Genuine OEM parts guarantee the correct flow rate and electrical specifications for reliable operation.