BMW G20 320d G30 520d X3 G01 20dX B47D Fuel Pump Injector Injection System Set

The BMW G20 320d G30 520d X3 G01 20dX B47D Injection System Kit is a complete set of components from the injector nozzles category, designed for BMW B47D diesel engines. This solution allows for professional repair or restoration of the original fuel system parameters in modern BMW diesel units.

Specifications and technical data

• SKU: 8579236-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8579236
• Substitutable numbers: 8579236, 13538579236, 8579231, 13518579231, 8579240, 13538579240, 8579230, 0445010775, 0 445 010 775, 0445214371, 0 445 214 371, 0445111009, 0 445 111 009, 0281006886, 0 281 006 886, 8595120, 13538595120, 8587546, 13538587546
• Fuel type: Diesel
• Category: Fuel Injectors

Intended Use and Application in BMW Diesel Engines

The presented injection system kit is designed to work with BMW B47D Diesel engines, used in models such as the 3 Series G20 320d, 5 Series G30 520d, and X3 G01 20dX. The system's design is adapted to high operating pressures and precise fuel delivery, which is crucial for the performance, smooth operation, and fuel consumption of modern diesel engines.

A properly selected injector kit helps maintain:

• stable common rail pressure across the full load range,
• accurate fuel delivery in each cylinder's operating cycle,
• correct cold start characteristics and performance at high temperatures,
• controlled exhaust emission levels in line with the B47D unit's factory specifications.

Technical Characteristics of the Injection System Kit

The injection system in BMW B47D engines is an advanced high-pressure system where injector nozzles and components responsible for generating and controlling fuel pressure play a key role. The technology used enables multi-phase injection within a single operating cycle, resulting in:

• improved diesel atomization in the combustion chamber,
• reduced combustion noise characteristic of modern diesels,
• more uniform thermal load on pistons and cylinder heads,
• more efficient utilization of fuel's chemical energy while maintaining moderate consumption.

The precise interaction of the kit's components directly impacts the vehicle's dynamics, acceleration smoothness, and throttle response, especially at low and medium RPMs typical for daily driving.

Benefits of Using an Original BMW Injection System

Choosing a kit like the BMW G20 320d G30 520d X3 G01 20dX B47D Injection System Kit allows you to maintain the engine's original operating characteristics and avoid problems typical of unverified aftermarket parts. Key advantages include:

• maintaining compatibility with engine control unit maps developed for the B47D unit,
• proper integration with emission control systems (e.g., particulate filter, exhaust gas recirculation system),
• reducing the risk of rough idling and hesitation during acceleration,
• decreasing the likelihood of secondary damage (e.g., excessive load on the turbocharger or DPF filter).

Using components from the same design family as those factory-fitted in BMWs is particularly important for diesel engines, where injection system tolerances are very narrow, and deviations can lead to costly failures.

Condition, Verification, and Preparation for Installation

The offered kit comes from the group of used BMW OEM parts, meaning it is based on original components from dismantled vehicles. Each set is verified for its intended purpose and the consistency of components within a single system, which facilitates installation and subsequent diagnostics.

Before installation, it is recommended to:

• perform professional computer diagnostics of the vehicle to confirm that the injection system is the source of the problems,
• check the cleanliness of the fuel system (tank, lines, fuel filter),
• adapt the injection parameters in the engine control unit according to BMW service procedures,
• install in a specialized workshop with experience in B47D units.

Technical Support and Educational Materials

When working with high-pressure diesel systems, proper diagnostics are crucial. If you want to better understand the symptoms of wear and the potential consequences of neglect, read the article: Diesel Injector Failures – How to Recognize Them and What Are the Risks of Neglecting Them. This is a practical source of knowledge about typical symptoms, consequences, and methods for checking injectors.

If you are looking for other BMW injector nozzles compatible with other models of this brand, check out our dedicated category: BMW injector nozzles. This will allow you to easily compare available solutions and select components for a specific engine version.