Fuel Hose BMW F01 F10 F11 N57 Diesel Fuel Injection Feed Line Pipe 7799998

BMW F01 F10 F11 N57 Fuel Line Injector Line is a component of the diesel fuel system, designed for N57 engines in BMW F-series models. It ensures precise delivery of diesel fuel to the injectors, which is crucial for stable operation of the diesel unit and correct pressure in the common rail system.

Specifications and technical data

• SKU: 7799998
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7799998
• Substitutable numbers: 7799998, 13537799998
• Fuel type: Diesel
• Category: Fuel Injectors

Application in N57 Engine and Role in the Injection System

The BMW injector line for N57 engine operates under high pressure conditions characteristic of modern diesel units. Its task is to stably, leak-free, and repeatedly deliver fuel to the injector nozzles, which affects:

• maintaining proper pressure in the common rail manifold and at the injector inlet,
• precise dosing of diesel fuel in each cylinder working cycle,
• reducing vibrations and pressure pulsations in the fuel system,
• stable diesel engine operation across the full load range.

In N57 engines, the proper condition of injector lines is important not only for performance but also for protecting the injectors and the entire high-pressure system.

Fuel Line Construction and Diesel Operation Safety

The line belongs to the category of injector nozzles, i.e., components directly cooperating with fuel injection. In practice, this means it must meet the requirements regarding:

• resistance to high operating pressure typical for modern diesel engines,
• tightness of connections with the common rail manifold and the injector,
• dimensional stability ensuring proper routing and absence of stress during engine operation,
• temperature resistance in the engine bay and contact with diesel fuel.

Thanks to this, the line can operate in the demanding environment of a diesel engine bay, maintaining appropriate flow and sealing parameters.

Benefits of Using an Original BMW Line

Choosing a fuel injector line dedicated to BMW F01, F10, and F11 with an N57 engine allows for maintaining the factory operating characteristics of the injection system. Key advantages include:

• factory fit to N57 engine geometry – proper line routing and alignment with accessories,
• maintaining diesel system operating parameters according to manufacturer's specifications,
• reducing the risk of leaks and pressure drops in the high-pressure system,
• support for proper injector nozzle operation, which translates to smooth engine operation and correct fuel atomization.

This solution is particularly beneficial for servicing diesel engines where the accuracy and repeatability of injection system parameters directly impact the durability of the powertrain.

Injection System Diagnostics and Prevention

In case of problems with diesel engine operation – such as uneven idling, power loss, or increased fuel consumption – it is worth comprehensively assessing the condition of the injector lines and the injectors themselves. A useful supplement to service knowledge can be an article describing typical symptoms and consequences of neglect in this area: diesel injector faults – symptoms, consequences, and diagnostics. This allows for better planning of the scope of work and avoiding secondary damage to the fuel system.

Other BMW Injector Nozzles

If you are looking for other BMW injector nozzles for different models or engine configurations, check out our dedicated category: BMW injector nozzles. This will allow you to easily select injection system components compatible with your specific vehicle version.