Fuel Rail BMW F90 M5 F91 M8 G11 G15 G30 1-4 Cyl Petrol High Pressure 7852402

The BMW F90 M5 G11 G15 G30 Fuel Rail is a component of the gasoline fuel system designed for modern BMW powertrains, ensuring stable fuel delivery to the injector nozzles. This OEM solution allows for the preservation of factory engine operating parameters and predictable vehicle behavior across a wide range of loads.

Specifications and technical data

• SKU: 7852402
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7852402
• Substitutable numbers: 7852402, 13537852402
• Fuel type: Petrol
• Category: Fuel Injectors

Purpose and Role in the Fuel System

The BMW Fuel Rail operates within the gasoline engine fuel system, distributing fuel to individual injector nozzles. It is responsible for:

• uniform cylinder fueling under varying loads and engine speeds,
• fuel pressure stabilization within the rail, facilitating precise dosing by the injectors,
• maintaining repeatable combustion parameters, crucial for the performance and refinement of the powertrain.

In BMW M5 F90 and G11, G15, G30 series vehicles, a properly functioning fuel rail directly impacts dynamics, throttle response, and engine stability under high loads.

Construction and Technical Characteristics

The rail is designed as a component of the gasoline engine fuel system, considering high requirements for sealing and resistance to operating pressure. The OEM construction ensures:

• factory mounting points matched to the units used in BMW F90 M5, G11, G15, G30,
• precise injector nozzle seats, guaranteeing proper sealing and positioning,
• appropriate fuel channel geometry, supporting even pressure distribution throughout the rail.

By maintaining original geometry and manufacturing standards, the rail works with factory control electronics and engine ancillaries without requiring modifications.

Practical Application and Benefits of Installation

Installing the fuel rail in place of a worn or damaged component allows for the restoration of:

• stable injector system operation during startup and across the full RPM range,
• correct fuel delivery, contributing to the maintenance of factory performance,
• consistent injector nozzle operation, reducing the risk of uneven cylinder performance.

The original fuel rail from the Injector Nozzles category is particularly important in high-power engines, where fuel delivery precision is critical for powertrain durability.

Used Product Characteristics

The component is offered as a used part, providing a cost-effective solution for users seeking original components at a reasonable price. For a fuel rail, this means:

• retention of factory specifications and compatibility with the BMW fuel injection system,
• possibility of economical fuel system repair without compromising on OEM parts,
• easier integration with the existing fuel system and engine ancillaries.

Prior to installation, standard checks for leaks and the condition of injector seats are recommended, in accordance with the manufacturer's service procedures.

Technical Support and Additional Materials

If you are also interested in other BMW injector nozzles for modern gasoline engines, check out our dedicated category: BMW injector nozzles. This will help you easily select compatible fuel system components for your model.

Although the described component pertains to gasoline engines, many principles of diagnostics and symptoms of fuel system problems are similar to those in diesel engines. It is worth familiarizing yourself with material discussing typical symptoms and consequences of neglect – you can find it in the article: diesel injector faults – symptoms, consequences, and diagnostics. This will help you better understand the importance of a functioning fuel injection system in every engine type.