BMW X5 E53 M57N 3.0 d Fuel Feed Line Pipe 7788264 13537788264

The BMW X5 E53 3.0d M57 Fuel Sensor Hose Line is a fuel system component designed for the M57 diesel engine in the BMW X5 E53 model. It is responsible for the stable routing of fuel in the sensor area, which is crucial for proper injector operation and precise fuel dose control.

Specifications and technical data

• SKU: 7788264
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7788264
• Substitutable numbers: 13537788264, 7788264, 13537796793, 7796793
• Category: Fuel Injectors

Purpose and Function in the Injection System

The fuel sensor hose line operates in close proximity to the components responsible for diesel fuel metering in the M57 engine. Its task is to ensure a sealed, controlled fuel flow in the measurement area, which supports:

• stable operation of the injector nozzles across various engine load ranges,
• accurate fuel sensor readings and maintenance of proper working pressure,
• even mixture combustion, contributing to the smooth operation of the M57 unit.

Thanks to proper fuel routing in the sensor area, the engine control unit receives reliable data, reducing the risk of uneven running, power loss, or starting problems.

Benefits of Using an Original BMW Part

This part comes from the BMW OE line, meaning it retains the factory geometry, diameters, and connection method to other injection system components. In practice, this translates to:

• a secure fit for the M57 engine in the BMW X5 E53 without installation modifications,
• compatibility with factory injector nozzles and hardware mounted on the rail,
• maintaining the original fuel system operating characteristics, in line with the manufacturer's specifications.

Using an original hose line – instead of aftermarket alternatives with uncertain parameters – helps maintain stable fuel pressure and reduces the risk of leaks in a critical area, such as the measurement and dose control zone.

Condition, Installation, and Service Application

This part is used, allowing for an economical repair of the fuel system while retaining an OEM component. It is a practical solution in situations where the previous hose line has suffered mechanical damage, material wear, or signs of leakage around the fuel sensor.

The hose line is designed for installation in the BMW X5 E53 3.0d with the M57 engine. Thanks to its factory-made construction, it is possible to maintain the original fuel line routing, which facilitates servicing and subsequent diagnosis of the injection system.

Diagnostic Support and Knowledge of the Injection System

When replacing components in the injector nozzles category and associated hardware, it is advisable to pay attention to symptoms typical of diesel injection system wear. Detailed information on symptoms, consequences, and testing methods can be found in the article: Diesel Injector Failures – How to Recognize Them and What Neglecting Them Entails. This is a useful source of knowledge when planning comprehensive maintenance for the M57 engine.

Other BMW Injector Nozzles

If you are assembling a fuel system or planning a more extensive injector service for your X5, you can check the available BMW injector nozzles in our offer. View the full list of products in the BMW injector nozzles category to select components that match your specific engine configuration.