BMW X3 E83 X5 E70 E90 E91 M57N2 Diesel Injector Fuel 7808089

BMW X3 E83 X5 E70 E90 E91 M57N2 Diesel Injector Fuel Injector is an original injector nozzle designed for BMW diesel engines from the M57N2 family. This component ensures precise diesel fuel dosing, stable engine operation, and correct combustion parameters in popular BMW X Series and 3 Series models.

Specifications and technical data

• SKU: 7808089-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7808089
• Substitutable numbers: 13537808089, 7808089, 0445115077, 0 445 115 077
• Fuel type: Diesel
• Category: Fuel Injectors

Intended Use and Technical Characteristics

The presented diesel engine fuel injector belongs to the Injector Nozzles category and is factory-designed for the M57N2 unit requirements. The injector's design enables precise fuel atomization in the combustion chamber, which translates to smooth engine operation, improved running refinement, and reduced smoke.

As a component of a Diesel fuel supply system, the injector works with a high-pressure pump and common rail, responsible for:

• accurate fuel dosing across the full engine load range,
• stable injection pressure at various RPMs,
• optimal mixture formation to maintain engine power and flexibility.

Benefits of Using an Original Injector Nozzle

Using an original injector in an M57N2 engine allows for maintaining operating parameters in line with BMW's design intentions. In practice, this means:

• smoother idle operation and reduced engine vibrations,
• better throttle response due to the correct fuel spray pattern,
• reduced risk of piston overheating and excessive stress on the crankshaft and piston assembly,
• maintaining factory performance and correct torque values.

A properly selected injector nozzle also influences the operation of the diesel particulate filter and turbocharger, as correct combustion reduces soot and thermal loads in the exhaust system.

Application in BMW Models with M57N2 Engine

The BMW Diesel Fuel Injector is designed for M57N2 units installed in, among others, BMW X3 E83, X5 E70, and 3 Series E90 and E91 models. This makes it the right choice for replacing a single injector or for a complete overhaul of the injection system in these vehicles.

Selecting the component based on the OEM part number and interchangeable numbers allows for a safe fit of the injector to a specific engine version and car year. If in doubt, it is advisable to compare the markings with the existing component or the vehicle manufacturer's specifications.

Condition and Installation Aspects

The offered injector is a used part, allowing for an economical repair of the fuel system while maintaining the original BMW design. Before installation, it is recommended to verify its operating parameters on a test bench and use new seals according to the service procedure.

Professional installation of the injector in a diesel engine requires maintaining cleanliness of the injector seats, proper tightening torque, and subsequent adaptation in the engine control unit, if applicable for the specific unit version. A correctly performed replacement minimizes the risk of leaks, blow-by, and problems with starting the engine when warm or cold.

Diagnostics and Technical Knowledge

If you want to better understand the symptoms of injector wear in a diesel engine, it is worth reading the guide describing the symptoms and consequences of neglect. Detailed information can be found in the article Diesel Injector Failures – How to Recognize Them and What Their Neglect Entails, which discusses common problems, diagnostic methods, and recommended service actions.

Other BMW Injector Nozzles

If you are looking for other BMW injector nozzles for different models or engine variants, check out our dedicated category BMW Injector Nozzles, where you will find a wide selection of fuel system components tailored to various series and generations of this brand's vehicles.