Mechanical Coolant Pump

The BMW Genuine Parts 11517509985 is a direct replacement mechanical coolant pump, also referred to as a water pump assembly. Engineered and manufactured by BMW, this part is built to tolerate years of heavy use and deliver long-lasting performance. It is designed as an exact fit for numerous BMW vehicles, replacing previous part numbers 11-51-7-527-910 and 11-51-7-503-884. This water pump is crucial for maintaining proper engine temperature. Water pumps on BMW M54 engines are known for potential failures on higher mileage vehicles, making timely replacement essential for optimal engine health. The part is shipped as new and comes with BMW's factory warranty, ensuring reliability and peace of mind. Installation involves draining the cooling system, removing the air intake duct, cooling fan, and fan shroud. The engine drive belt must be removed by releasing tension, followed by removing the coolant pump pulley. The pump itself is secured by four mounting nuts. Discharging the pump may require screwing M6 screws into tapped bores to loosen it from the timing chain cover. It is important to replace the sealing O-ring and gaskets before reinstallation, and the O-ring should be lubricated during the process. Specific installation and repair tips can be found by selecting your vehicle. This genuine BMW water pump is compatible with a range of models, including 1997-2006 BMW 320i, 323Ci, 323i, 325Ci, 325i, 325xi, 328Ci, 328i, 330Ci, 330i, as well as 2001-2006 X5, and 2004-2006 X3 models. It is specifically noted for fitting M52 and M54 engines in E46, E39, E53, and Z3 chassis.