BMW F70 F74 X1 U11 X2 U10 High Pressure Fuel Injector B38 B48 Petrol 8744746

BMW F70 F74 X1 U11 X2 U10 High Pressure Fuel Injector B38 B48 Petrol is an original component from the Fuel Injector Nozzles group, designed for BMW petrol engines from the B38 and B48 family in X1 U11 and X2 U10 models. This used OEM injector ensures proper fuel dosing, stable engine operation, and the maintenance of factory combustion parameters.

Specifications and technical data

• SKU: 8744746
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8744746
• Substitutable numbers: 8744746, 13538744746
• Fuel type: Petrol
• Category: Fuel Injectors

Purpose and function of the injector

The presented fuel injector is a component of the petrol supply system in modern BMW B38 and B48 engines, used in X1 F70/F74 U11 and X2 U10 models. Its task is to precisely atomize fuel in the combustion chamber, which translates into:

• proper engine performance across the entire rev range,
• stable power delivery and predictable throttle response,
• maintaining the correct air-fuel mixture ratio.

By maintaining the factory injection characteristics, the engine control system can operate within the optimal range, which helps maintain proper dynamics and reduce fuel consumption.

Benefits of using an original injector nozzle

Using an original injector from the Fuel Injector Nozzles group in a BMW petrol engine allows for consistency with the factory engine control unit calibration. In practice, this means:

• better repeatability of fuel doses compared to low-quality replacements,
• lower risk of rough idling, hesitation, or misfires,
• reduced risk of excessive load on the catalytic converter and lambda sensors.

The injector designed for petrol engines is structurally adapted to the operating parameters of B38/B48 units, which promotes long-term and stable operation when using high-quality fuel.

Installation and operational characteristics

The component has been designed as part of the injection system in BMW petrol engines, making its installation in the relevant X1 and X2 versions predictable for an experienced mechanic. When replacing the injector, it is recommended to:

• use new seals in accordance with the manufacturer's technology,
• thoroughly clean the seat in the cylinder head before installation,
• perform adaptation or check injection parameters using a suitable diagnostic tester.

This approach helps reduce the risk of leaks, starting problems, and errors stored in the engine control unit after replacing the component.

Diagnostics and prevention of the injection system

Although the described component concerns a petrol engine, the principle of maintaining the injection system is similar to that of diesel units – regular diagnostics and a quick response to the first signs of irregularities allow for avoiding costly repairs. In the context of a broader look at injectors, it is worth reading the material discussing symptoms and consequences of neglect in the fuel system, available in the article about injector faults and the consequences of neglecting them.

Expansion of the BMW fuel system

If you are planning a comprehensive repair or upgrade of the fuel system area in your BMW and need other components from the same group, such as additional injectors, fuel rails, or assembly-related parts, check out the available parts in the BMW Fuel Injector Nozzles category.

Summary

BMW F70 F74 X1 U11 X2 U10 High Pressure Fuel Injector B38 B48 Petrol is a used, original injection system component designed for new-generation BMW petrol engines. Choosing such an injector nozzle allows you to maintain the factory operating parameters of the engine, reduce the risk of air-fuel mixture problems, and ensure stable vehicle operation in daily use.