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BMW water pumps are designed to circulate coolant throughout the engine to keep it operating at the ideal temperature. The water pump is driven by a belt that is connected to the crankshaft, and as the belt turns, the impeller inside the pump begins to spin. This action creates suction that pulls coolant from the radiator and into the pump.
From there, the coolant is pushed through the engine block and back into the radiator, where it can be cooled. BMW water pumps are built to last, but they can eventually fail due to wear and tear. When this happens, it’s important to have the pump replaced as soon as possible to avoid engine damage. BMW recommends that the water pump be replaced every 50,000 miles or when needed to ensure optimal engine cooling performance.
Coolant Leaks, Low Coolant Levels, and Engine Overheating
One of the most common BMW water pump failure signs is coolant leaks. Look for wet spots on the ground under your BMW, as well as for low coolant levels in your BMW’s radiator or overflow tank. check the door, hood, and trunk seals for leaks as well.
Another sign of a failing water pump is engine overheating, especially during city driving when the BMW is idling in traffic. The BMW’s water pump circulates coolant through the engine to keep it at operating temperature, so if it fails, the engine will eventually overheat.
Also, listen for abnormal noises coming from your BMW’s engine compartment. A failing water pump may make a grinding or whining noise. If you notice any of these BMW water pump failure signs, have the BMW towed to a nearby service station for repair.
Why did my BMW’s water pump fail?
BMW is known for their luxury sports cars, but you have to have a professional mechanic on call if one of the parts fails. Since the water pump is an essential component in BMW’s cooling system, a failure can cause major engine damage. There are several causes of water pump failure, but the most common are listed below:
Impact with a foreign object: A foreign object such as dirt or debris can get caught in the water pump and cause it to fail. BMW recommends flushing the cooling system regularly to prevent this from happening.
Poor quality coolant: BMW recommends using only BMW-approved coolant in their vehicles. Using other types of coolant can cause the water pump to fail.
Over taxing the engine: BMW engines have a tendency to overheat, which can cause the water pump to fail. BMW recommends keeping an eye on the temperature gauge and taking breaks frequently when pushing the engine hard or when in hot weather.
Leaks: A coolant leak can cause the water pump to fail. BMW recommends checking the coolant level frequently and adding coolant as needed.
With added traffic in our driving areas, BMW owners can see their car suffer fast wear and tear. In the broad Louisville area, drivers
often choose BMW models for their style, reliability, and comfort standards. To keep your BMW running in top condition, our team at Mike Johns Imports provides complete services and repairs that you can trust.
At MJI we’re proud to have a team of experienced technicians with decades of experience in BMW, Mercedes and MINI repair services. Our staff helps thousands of car owners in the Louisville area with a commitment to quality. Not only do we fix current issues with your car, but also guarantee to find any developing issues that may become problems later on. This way your car leaves every appointment in “like-new” condition. If you live in or around Crestwood, Hurstbourne, Jeffersontown, Louisville, St. Matthews, and Jeffersonville, IN, give us a call today to set up a convenient appointment. By servicing your BMW when you suspect it has a water pump failure, or any other matter that could hinder its performance, you can keep your car in top condition!