AdBlue Injector BMW F30 F32 LCI Diesel N57N SCR Injection Nozzle Pipes 8579894

BMW F20 F30 B37 B47 SCR AdBlue Injector is a specialized component of the exhaust emission reduction system in BMW diesel engines, working with the AdBlue dosing system. This component, belonging to the group Hoses, tubes and pipes, is responsible for the precise delivery of urea solution to the exhaust system, which effectively reduces nitrogen oxide levels. Thanks to its design compliant with BMW requirements, the injector ensures stable operation of the SCR system and helps the vehicle comply with current emission standards.

Specifications and technical data

• SKU: 8579894
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8579894
• Substitutable numbers: 8579894, 11788579894, 17128583521, 8583521, 17128583522, 8583522
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Application and Function in the SCR System

The SCR AdBlue injector in BMW F20 and F30 models with B37 and B47 units operates in a high exhaust gas temperature environment, therefore its construction is adapted to the demanding operating conditions typical for Diesel engines. This component is responsible for:

• precise atomization of the AdBlue solution in the exhaust gas stream,
• stable dosing of the nitrogen oxide reducing agent,
• cooperation with SCR system sensors and controller,
• maintaining the correct operation of the selective catalytic reduction converter.

A properly functioning injector reduces the risk of exhaust system clogging, emission system errors, and the engine entering limp mode.

Construction and Integration with the Piping System

As a component from the Hoses, tubes and pipes group, this injector is integrated into the system supplying AdBlue from the tank to the exhaust system. Appropriately shaped connectors and matched pipe diameters ensure leak-free connections and reduce the risk of urea solution leaks.

The solution used by BMW allows for:

• secure mounting of the injector in the exhaust system,
• easier disassembly and assembly during service,
• maintaining the required AdBlue flow geometry in the pipes,
• reduction of mechanical stresses acting on the connectors.

Benefits of Using an Original BMW Solution

Using an SCR AdBlue injector designed for B37/B47 engines in BMW F20 and F30 allows for maintaining the factory parameters of the exhaust gas purification system. The main advantages include:

• Compatibility with factory control – the component works with the engine control unit and SCR system software, which reduces the risk of diagnostic errors.
• Stable dosing parameters – proper AdBlue atomization affects the efficiency of nitrogen oxide reduction and the correct operation of the catalytic converter.
• Proper fit with the piping system – the design compliant with BMW requirements facilitates installation and minimizes the risk of leaks.

For users, this means a lower risk of costly exhaust system repairs and greater predictability of vehicle behavior in the long term.

Condition, Selection, and Installation

The offered SCR AdBlue injector is a used part, which allows for optimizing repair costs while maintaining a design consistent with BMW solutions. Before installation, it is recommended to verify compatibility with the specific engine version and exhaust system configuration of the particular vehicle.

When selecting parts, it is worth paying attention to:

• compatibility with the engine type (B37 or B47),
• the type of SCR system used in the specific model year,
• the condition of the AdBlue supply pipes and the mounting socket in the exhaust system.

Properly performed installation, ensuring leak-free pipes and correct injector seating, is crucial for the trouble-free operation of the emission reduction system.

System Expansion and Related Parts

If you are planning a comprehensive repair or upgrade of the exhaust system and emission reduction system area in your BMW and need other components from the same group, such as AdBlue supply pipes, flexible hoses, or return pipes, check the available parts in the BMW Hoses, tubes and pipes category.

If you are considering a broader upgrade of the diesel unit in your BMW and want to better understand the differences between popular engines of this brand in terms of performance, durability, and service costs, the article: BMW N47 vs M57 / M57N / M57N2 – ranking of legendary diesels, which discusses key aspects of operation and selection of used market components, may be helpful.