BMW 11517527799 Engine Water Pump

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Water pumps can fail due to various reasons, including low coolant level or a leaking radiator cap. If the engine is operated under these conditions, it can lead to premature water pump failure and potential damage to the cylinder head gasket, cylinder head, and engine block deck surfaces. Warping of the cylinder head can render it useless if it affects the alignment of the camshaft journals. It is important to exercise caution when working with the cooling system, as opening or draining it when hot can cause serious burns. Additionally, ethylene glycol antifreeze should be kept away from cats and dogs as it can be fatal if ingested. When performing repairs on the cooling system, it is recommended to apply an anti-seizing compound to cooling system O-rings, rubber seals, and threaded fasteners installed into the engine block or cylinder head. The removal and installation process for different engine models is outlined, including steps such as disconnecting the negative battery cable, draining the cooling system, removing the fan, belt, and pulley, disconnecting hoses, cleaning gasket surfaces, installing the water pump with proper torque, connecting hoses, and adding coolant while bleeding the system. It is important to inspect and replace any necessary components, such as hose clamps, radiator cap, coolant hoses, thermostat, and accessory drive belts. The installation process should be done in reverse order of removal, and the cooling system should be filled with a 50/50 mixture of approved coolant and distilled water, while ensuring not to exceed a coolant to water ratio of 60%. The system should be bled as necessary, and after the engine reaches operating temperature, the coolant level should be checked and topped off as needed.