BMW E60 E81 E87 E90 Engine Intake Manifold Flap Actuator Unit N47 7803789

BMW E60 E81 E87 E90 Intake Manifold Flap Actuator N47 is a component from the exhaust manifolds category, designed for use with the N47 engine in popular BMW 1, 3, and 5 Series models. A used intake manifold flap actuator is a good choice for those seeking a proven service solution that restores proper exhaust system operation and stable engine parameters. It's a practical option for drivers who want to maintain the factory performance characteristics of their engine without investing in new components.

Specifications and technical data

• SKU: 7803789-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7803789
• Substitutable numbers: 7803789, 7811300, 11618575534, 8575534, 11617804744, 7804744, 11617811300, 7811299
• Category: Manifolds & Headers

Purpose and Function in the Exhaust System

The intake manifold flap actuator in the N47 engine is responsible for controlling the flaps within the manifold, which affects exhaust flow and engine performance across different load ranges. In BMW E60, E81, E87, and E90 vehicles, a properly functioning component of this type helps maintain:

• stable engine operation at low and medium RPMs,
• proper throttle response,
• correct combustion parameters in conjunction with the exhaust system.

By preserving the original flap control concept, the actuator helps maintain the factory tuning of the N47 engine, which is important for both durability and subsequent diagnostics.

Benefits of Using an Original BMW Part

By using an intake manifold flap actuator dedicated to specific BMW models, you gain:

• compatibility with the factory exhaust manifold in the N47 engine,
• assurance of fit in terms of mounting and operating range,
• easier diagnostics for future service inspections.

Original BMW solutions are designed to work with other exhaust system components, reducing the risk of engine control unit errors or improper flap operation.

Condition, Origin, and Service Application

The offered actuator is a used part from a dismantled vehicle, making it a sensible alternative to new parts for budget repairs or for restoring older BMW models. This type of component is often chosen for:

• exhaust system repairs after intake manifold flap failure,
• service of N47 engines in E60, E81, E87, E90 models,
• restoring factory configuration after previous modifications.

A correctly selected intake manifold flap actuator helps reduce the need for additional modifications and allows focus on the standard installation and adaptation procedure in the vehicle.

Selection and Compatibility with Interchangeable Numbers

The component has an assigned OEM part number and associated interchangeable numbers, which facilitates verification of compatibility with a specific N47 engine version and car year. When selecting, it's advisable to consult BMW catalog data and reference numbers to ensure the actuator will work with the exhaust manifold installed in the vehicle.

If you need more in-depth knowledge about how manifolds and control elements work in performance and stock exhaust systems, the article on our blog may be helpful: Performance Exhaust System – Used Sports Manifolds and Catalytic Converters on the Road. You'll find practical tips on selecting used manifolds for various brands, including BMW.

Other BMW Exhaust Manifolds and Technical Knowledge

If you are also looking for other BMW exhaust manifolds for your car, check out our dedicated category: BMW exhaust manifolds. You'll find a wide selection of parts from dismantled vehicles that can be used for both standard repairs and more extensive service projects.

For owners of BMW 3 and 5 Series who are also working on their vehicle's electronics, information on using dismantled parts in control systems may also be useful – this is described in the article: How to Care for iDrive Systems and Electronic Modules in BMW 3 and 5 Series Using Dismantled Parts. This makes it easier to plan a comprehensive vehicle service, combining work on the exhaust system and electronics.