Land Rover Discovery Sport L550 AdBlue Injector Fluid Nozzle FX23-189E3-AA

Land Rover Discovery Sport L550 AdBlue Injector Fluid Nozzle is a precision component of the exhaust gas purification system in diesel engines, designed specifically for Diesel units. It is responsible for the controlled delivery of AdBlue solution into the exhaust stream, which effectively reduces nitrogen oxide emissions and maintains the efficiency of the SCR system at a stable level. This technical solution supports the proper operation of the modern exhaust system and helps maintain compliance with emission requirements.

Specifications and technical data

• SKU: FX23-189E3-AA-1-1
• Mark: Land Rover
• Condition: Used
• OEM Part Number: FX23-189E3-AA-1
• Substitutable numbers: FX23-189E3-AA, FX23189E3AA, LR071703, FX23-189E3-AC, FX23189E3AC, FX23-189E3-AA-1, C2D28660, C2D60998, FX23189E3AA1
• Fuel type: Diesel
• Category: Fuel Injectors

Purpose and function of the AdBlue injector

The presented nozzle is a component of the AdBlue dosing system in the Discovery Sport L550 model, operating in diesel engine technology. Its task is to spray the urea solution at the appropriate point in the exhaust system so that the reaction in the SCR catalyst proceeds in a controlled and repeatable manner. A properly functioning injector reduces the risk of catalyst clogging, uneven dosing, and errors related to exhaust emissions.

Benefits of using an original injector nozzle

Using an original solution dedicated to the Discovery Sport L550 allows for maintaining the factory performance parameters of the exhaust gas purification system. A properly selected nozzle:

• supports the stable operation of the SCR system in a diesel engine,
• reduces the risk of emission error messages appearing on the instrument cluster,
• helps maintain uniform AdBlue dosing across a wide range of engine loads,
• reduces the probability of premature wear of exhaust system components. As a result, the emission reduction system remains more predictable, and the operating parameters of the power unit are closer to the manufacturer's original specifications.

Technical characteristics and fitment

The AdBlue injector belongs to the Injector Nozzles category, which means it is a precision component operating under demanding temperature and chemical conditions. The design is adapted to work with a Diesel-powered system, where the SCR system is an integral part of the emission reduction strategy. Proper fitment for the specific Land Rover model facilitates installation and allows for maintaining the correct spray geometry of the AdBlue solution. As a part originating from the Land Rover group, the nozzle is prepared to operate under the typical operating conditions for this manufacturer, including both city driving and longer trips. Proper mating with other exhaust system components reduces the risk of leaks and improper spraying.

Component condition and installation aspects

The offered AdBlue injector is a used component, which in practice means it comes from disassembly and may show signs of previous use, while maintaining the functionality required for further operation. This type of part is a good choice when you want to reduce repair costs while maintaining the original technical design. Before installation, it is recommended to perform a standard verification of the AdBlue dosing system, including checking hoses, connectors, and system tightness. A properly performed nozzle replacement allows for restoring correct solution dosing and minimizing the risk of recurring exhaust emission errors.

Diagnostics and operation of the injection system

Improper operation of the AdBlue injector may manifest itself, among other things, through emission error messages, a drop in power, or the power unit entering limp mode. It is then worth performing comprehensive diagnostics of the diesel engine injection system and the SCR system. A detailed discussion of typical symptoms and the consequences of neglect can be found in the article: diesel injector faults – symptoms, consequences, and diagnostics.

Complementing the offer and further system optimization

If you are planning broader maintenance of the fuel supply and exhaust purification system in your Land Rover, it is also worth considering other elements from the group of precision dosing components. Well-chosen components from the Injector nozzles and injection system – how to maintain efficiency in a diesel category allow for maintaining stable engine operation, reducing fuel consumption, and lowering the risk of costly failures in the future.