The intake manifold plays a crucial role in the internal combustion engine by directing the correct amount of air-fuel mixture to the cylinders. Over time, however, problems can arise with the intake manifold, especially in BMW’s N47 engine, which is known for its susceptibility in this area. This article discusses the most common issues with the N47 intake manifold, repair options, and associated costs.
Common N47 Intake Manifold Problems
The N47 engine, installed in many BMW models from 2007 to 2017, is known for intake manifold problems. Here are some of the most common issues:
Defective Swirl Flaps
The swirl flaps in the intake manifold regulate airflow to the cylinders, optimizing combustion. However, in some N47 engines, the swirl flaps are prone to wear and can even break off. This can lead to power loss, increased fuel consumption, and engine damage.
“A defective swirl flap can have serious consequences for the engine,” says experienced BMW mechanic Hans Müller. “In the worst case, a broken swirl flap can enter the cylinder and cause significant damage there.”
Leaks
Over time, cracks can form in the intake manifold due to deposits, heat, and vibrations. These cracks can lead to air leaks, disrupting the air-fuel mixture and causing issues such as rough idling, power loss, and increased fuel consumption.
Mechanic working on BMW N47 intake manifold
Repair Options
Repairing a defective intake manifold on the N47 engine typically requires replacing the entire unit. However, there is also the option of having the swirl flaps removed to prevent future problems.
It is important to note that intake manifold repair should be carried out by a professional who has the necessary experience and equipment.
Costs
The cost of repairing the intake manifold on an N47 engine can vary depending on the workshop and the extent of the repair. Generally, you should expect costs between 500 and 1,500 Euros.
Conclusion
Intake manifold problems can affect the performance and lifespan of your BMW N47 engine. If you notice any signs of an issue, you should have your vehicle checked by a professional as soon as possible. Timely repair can save you time, money, and hassle in the long run.
For more information on the N47 engine and its problems, we recommend visiting our website: n47d20d. Here you will find detailed information on various aspects of this engine.
Repair costs for BMW N47 intake manifold
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