Fuel Rail BMW E90 LCI F20 F30 Petrol M135i 335i N55 Injector System 7576779

BMW E90 LCI F20 F30 Petrol M135i 335i N55 Fuel Rail is a fuel delivery system component designed for BMW petrol engines with the N55 unit, used in models such as the M135i and 335i. This product from the Injector Nozzles category ensures stable fuel rail supply and correct injector operation under demanding conditions.

Specifications and technical data

• SKU: 7576779-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7576779
• Substitutable numbers: 13537576779, 7576779
• Fuel type: Petrol
• Category: Fuel Injectors

Purpose and Application in the N55 Engine

The fuel rail is dedicated to modern, turbocharged BMW N55 petrol engines installed in the E90 LCI, F20, and F30 series, including high-performance versions like the M135i and 335i. It is responsible for the uniform distribution of fuel to the injectors, which is crucial for:

• stable engine operation across the full load range,
• precise fuel metering during dynamic acceleration,
• maintaining proper combustion parameters in the petrol engine.

Technical Characteristics and Compatibility

This component comes from the BMW range, meaning it adheres to factory manufacturing standards and ensures a perfect fit for the fuel system in specific E90 LCI, F20, and F30 body variants. The rail's construction is adapted for petrol fuel, taking into account the high operating pressures typical of modern injection systems.

The fuel rail works in conjunction with injectors from the Injector Nozzles category, providing them with adequate fuel supply and enabling the retention of factory injection maps. This allows the injection system to operate predictably, facilitating diagnostics and subsequent engine control unit calibration.

Benefits of Using an Original Fuel Rail

Using a fuel rail from BMW helps maintain the integrity of the entire fuel delivery system. The most significant advantages include:

• factory fit for the N55 engine – no need for fuel system modifications,
• maintaining manufacturer-specified operating parameters – important for stock and lightly modified units,
• stable fuel pressure at the injectors – promotes even operation of all cylinders,
• easier injection system diagnostics – mechanics can rely on factory service procedures.

Component Condition and Installation Aspects

The fuel rail is a used component, which means it offers an economical repair option for the fuel system while maintaining original specifications. Before installation, a standard check of the fuel system's tightness and verification of the condition of the cooperating injector nozzles are recommended to fully utilize the component's potential.

Installation of the fuel rail should be performed by an individual experienced with BMW N55 engines, adhering to the correct torque specifications and fuel system bleeding procedures. A correctly installed fuel rail supports uniform cylinder fueling and reduces the risk of starting problems or rough idling.

Related BMW Injector Nozzles and Technical Knowledge

If you are looking for other items in the BMW injector nozzles category, check out the BMW injector nozzles available in our store to complete the fuel delivery system for your vehicle of this brand.

When working on the injection system, it is beneficial to be aware of common symptoms of wear and failure. Although the described component is for a petrol engine, many diagnostic principles for injection systems are shared. We encourage you to read the article discussing symptoms and consequences of neglect in injection systems: diesel injector faults – symptoms, consequences, and diagnostics. This will help you better understand the importance of regular checks of injector and fuel rail condition.