BMW F20 F21 F30 F31 LCI Injection System Set Injector Fuel Pump 118d 318d B47

The BMW F20 F21 F30 F31 LCI Injector System Kit 118d 318d B47 is a complete, used set of components from the injector nozzles category, designed for B47 diesel engines in facelifted BMW 1 Series and 3 Series models. This solution is for users who want to restore the proper functioning of the diesel fuel system while maintaining the original performance characteristics of the engine.

Specifications and technical data

• SKU: 8514146-5
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8514146
• Substitutable numbers: 8514146, 13538514146, 8514154, 13538514154, 0445214315, 0 445 214 315, 8511626, 0445010764, 0 445 010 764, 0445110613, 0 445 110 613, 0281002949, 0 281 002 949
• Fuel type: Diesel
• Category: Fuel Injectors

Intended Use and Compatibility

The injector system kit for BMW 118d and 318d B47 is designed for BMW F20, F21, F30, and F31 LCI vehicles equipped with a diesel engine. By using OEM-class components, compatibility with the engine's factory operating parameters is maintained, ensuring stable running and predictable response under load.

The components included in the kit are configured for a specific fuel type, ensuring correct operating pressures, appropriate spray pattern, and precise fuel delivery across the entire RPM range. This is particularly important in modern diesel engines, where the injection system plays a crucial role in performance, fuel consumption, and emissions.

Technical Characteristics of the Injector System

The presented injector nozzle kit for BMW operates in a high-pressure system typical for modern diesel engines. The design of the components allows for:

• precise fuel metering in multiple injection phases, which improves running smoothness at idle and under load,
• stable common rail pressure, promoting even operation of all cylinders,
• efficient mixture combustion, which helps reduce smoke and power loss.

The system has been developed to work with the control electronics used in the B47 engine, ensuring proper communication with sensors and the engine control unit. Appropriately selected operating parameters help avoid problems with cold starts, fluctuating RPMs, or uneven operation under light load.

Benefits of Using the Injector Kit

Replacing worn fuel system components with a complete injector kit dedicated to BMW F20/F21/F30/F31 LCI offers a range of practical benefits:

• restoration of proper dynamics – the engine responds better to throttle input, and acceleration becomes smoother,
• reduction of diesel engine malfunctions – less jerking, misfires, and excessive smoke,
• stabilization of fuel consumption – correct fuel atomization helps maintain factory fuel consumption values,
• reduced risk of secondary damage – a properly functioning injector system reduces strain on the turbocharger, particulate filter, and exhaust system.

For users who primarily drive in urban or mixed cycles, correctly functioning injector nozzles are crucial for maintaining a balance between performance and operating costs.

Condition, Origin, and Selection by Part Numbers

The offered BMW injector system kit is a used part from a dismantled vehicle. This solution significantly reduces repair costs compared to purchasing new components, while maintaining the original manufacturer's specifications. The product has an assigned OEM part number and a set of interchangeable numbers, which facilitates verification of compatibility with a specific vehicle configuration.

Before purchasing, it is advisable to compare the markings with service documentation or use part number selection. This minimizes the risk of installing a component with different operating parameters than those intended for the specific engine variant.

Technical Support and Educational Materials

If you want to better understand how diesel engine injection problems manifest and what the consequences of ignoring them are, read the article: Diesel Injector Failures – How to Recognize Them and What Neglecting Them Entails. This is a practical source of knowledge that will help you assess when replacing the injector kit is justified.

If you need other components from the BMW injector nozzles category for your car, check the available products in the dedicated section: BMW injector nozzles. This will allow you to easily compare different solutions and select components suitable for your specific model and engine version.