We English speakers call it the "Ultimate Driving Machine," but in its native country, people say it makes for "Freuden am Fähren" - literally, "Joy In Driving." You can keep that joy going by regularly inspecting the individual components and systems periodically, making adjustments and replacing items as needed. Despite the fact that the BMW represents the apex of quality automotive engineering, it is a mechanical device. Like any mechanical device, certain components will eventually wear out in the course of normal use.

When it comes to your BMW 525I, you will likely wind up installing a new alternator, starter and a water pump once every 100,000 miles. The BMW 525I Water Pump is important to keep your engine from overheating - which could have dire consequences.

Because metal is an excellent conductor, intense heat is generated inside the cylinders as fuel is burned (actually releasing ancient solar energy stored by plants millions of years ago, if you can believe it). The BMW 525I Water Pump circulates water through passages in the engine, called "water jackets," where this water absorbs most of this heat and dissipates it via the hundreds of tiny cooling fins in your radiator. If some component of the cooling system - the cooling fan, the radiator, the connecting hoses or the water pump - should fail, your engine block may crack, your heads may warp, or the engine could seize up altogether.If there is water dripping from the BMW 525I Water Pump, it may need a new gasket - but if the pulley feels loose, you'll want to get a new one from us, where you'll pay the lowest prices on a wide selection of parts for all your BMW needs.