BMW E81 E87 LCI 116d 118d E90 318d N47 Fuel Pump Injector Injection System Set

BMW E81 E87 LCI 116d 118d E90 318d N47 Injector System Kit 7798446 is a used, complete part from the Injector Nozzles category, designed for BMW diesel engines from the N47 family. The product provides a solid foundation for restoring the proper operation of the fuel system in popular 1 and 3 Series models.

Specifications and technical data

• SKU: 7798446-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7798446
• Substitutable numbers: 7798446, 13537798446, 7801656, 0445214134, 0 445 214 134, 7797874, 0445010506, 0 445 010 506
• Fuel type: Diesel
• Category: Fuel Injectors

Intended Use and Characteristics of the Injection System

The injection system kit is dedicated to BMW N47 engine units used in E81, E87 LCI, 116d, 118d, and E90 318d models. The construction is prepared to work with a Diesel engine, ensuring precise fuel delivery and stable engine operation under typical operating conditions.

The component comes from the original BMW production line, which means maintaining factory operating parameters, proper fit with engine accessories, and compatibility with factory control systems.

Benefits of Using Original Injector Nozzles

Choosing an original kit from the Injector Nozzles category for an N47 engine allows for:

• Maintaining the correct combustion process – proper atomization of diesel fuel in the combustion chamber promotes smooth engine operation.
• Reducing smoke and power loss – a functional injection system helps minimize typical symptoms of injector wear, such as jerking or loss of acceleration.
• Improved engine running culture – stable pressure and correct fuel doses translate to smoother idle and under load operation.
• Consistency with factory software – using a component compliant with the original specification facilitates diagnostics and adaptation in the service center.

Condition, Verification, and Service Application

The offered injection system kit is used, making it an attractive cost alternative to new components, while retaining the original BMW construction. Such elements are often chosen in professional workshops as a basis for further diagnostics, refurbishment, or installation after prior parameter checks on a test bench.

Before installation, it is recommended to:

• Verify the condition of injectors and pump on a specialized diagnostic stand,
• Check the fuel system for leaks and proper operation on both cold and warm engines,
• Perform injector adaptation in the engine control unit according to the BMW service procedure.

Operation and Diagnostics of Diesel Injection Systems

The injection system in BMW N47 diesel engines is sensitive to fuel quality and regular servicing. Neglecting the first signs of wear can lead to more serious engine failures. If you want to better understand the symptoms of wear and the potential consequences, check out the article: Diesel Injector Failures – How to Recognize Them and What Their Neglect Threatens. This is a practical addition to your knowledge when planning repairs or replacement of injection components.

Related BMW Injector Nozzles

If you are looking for other components from the BMW injector nozzles category for similar models or engine variants, check out the BMW injector nozzles available in our store. This will allow you to select components compatible with the specific engine version and year of your car, maintaining consistency with the factory specification.