BMW E81 E87 E90 E91 LCI N47 318d Intake Manifold Without Flap Control 7798885

The BMW E81 E87 E90 E91 LCI N47 318d Intake Manifold is an original part from the Intake Manifolds group, designed for N47 diesel engines in facelifted compact and mid-size BMW 1 and 3 Series models. Designed as an OEM part, it ensures proper air delivery to the cylinders, stable engine operation, and compliance with factory engine specifications.

Specifications and technical data

• SKU: 7798885
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7798885
• Substitutable numbers: 11617798885, 7798885, 11618507240, 8507240, 7810741, 11617811215, 7811215, 7810742, 7810179, 7810178
• Category: Intake Manifolds

Intended Use and Compatibility with N47 318d Engine

The intake manifold has been specifically developed for N47 units in the 318d version, used in E81, E87, E90, and E91 facelifted (LCI) body styles. Thanks to its factory intake channel geometry and appropriately selected cross-sections, it ensures even air supply to the cylinders, which translates to predictable throttle response and correct injector system operation.

The original manifold design allows for maintaining engine performance parameters in line with the manufacturer's intentions, which is particularly important when servicing N47 units, which are sensitive to the quality of components used. Using an OEM part minimizes the risk of ECU adaptation issues, leaks, or incorrect airflow.

Construction and Function in the Intake System

As part of the intake system, the manifold is responsible for distributing air from the intake duct to individual cylinders. Appropriately shaped channels support correct combustion chamber filling, which affects running smoothness, fuel consumption, and exhaust emissions. The manifold's design is optimized for cooperation with the turbocharger and exhaust gas recirculation system in the N47 engine.

The factory solution ensures correct positioning of spigots, mounting points, and interfaces with other engine accessory components. This allows for an organized installation process, and connections to the cylinder head, hoses, and sensors maintain their seal and stability during long-term operation.

Benefits of Using an Original Intake Manifold

Using an original intake manifold in the N47 318d engine helps maintain the consistency of the entire intake system with BMW's factory specifications. This solution is particularly recommended for:

• repairs after a failure or leak in the intake area,
• restoring the factory configuration after unsuccessful modifications,
• comprehensive servicing of the N47 unit in E81, E87, E90, E91 LCI models.

Original fitment means proper alignment with the cylinder head, accessories, and factory mountings, which reduces installation time and minimizes the risk of additional modifications. For users expecting predictable vehicle behavior and stable engine performance, this is a technically safe and proven solution.

Condition, Verification, and Service Application

This part is a used item intended for reinstallation in BMW vehicles with the N47 318d engine. This type of used part offers a reasonable compromise between repair cost and maintaining factory quality. The manifold can be used for standard replacement of a worn-out part as well as for major service work in the engine area.

As an OEM component, it maintains compatibility with original part numbers and interchangeable numbers, which facilitates selection for specific engine variants and vehicle model years. Consistency with BMW service documentation allows mechanics and users to precisely match the part to the specific vehicle configuration.

Expanding the Intake System in BMW – Intake Manifolds

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other parts from the same group, such as additional manifolds, intake components, or components that work with the air supply system, check out the available parts in the BMW Intake Manifolds category.

More About Selecting Used Exhaust and Air Flow System Components

When working with the intake and exhaust systems, it is useful to understand the relationships between the manifold, turbocharger, catalytic converter, and other exhaust flow components. If you want to better understand how to select used components for premium brands, including BMW, check out the article: Performance Exhaust System: Used Sport Manifolds and Catalytic Converters on the Road. This is a practical addition to your knowledge when planning engine repairs and modifications.