Audi Q3 8U VW Tiguan 5N Passat A3 Adblue Injector 2.0 TDI Diesel 04L131113Q

Audi Q3 8U VW Tiguan 5N Passat A3 Adblue Injector 2.0 TDI Diesel is a component from the Injector Nozzles group, designed for diesel engine fuel systems equipped with an AdBlue system. This offered sub-assembly comes from the Audi range and is a factory solution for the precise dosing of the agent in the exhaust gas treatment system of 2.0 TDI Diesel units.

Specifications and technical data

• SKU: 04L131113Q
• Mark: Audi
• Condition: Used
• OEM Part Number: 04L131113Q
• Substitutable numbers: 04L131113Q, 04L 131 113 Q
• Fuel type: Diesel
• Category: Fuel Injectors

Purpose and function in the AdBlue system

The presented AdBlue injector operates in the diesel engine supply system, where a stable, controlled dose of the agent reducing nitrogen oxide emissions is crucial. As an element of the Injector Nozzles category, it is responsible for atomizing the AdBlue solution into the exhaust stream, which enables the proper operation of the SCR catalytic converter and maintains compliance with emission standards.

This type of solution is used in popular models from the Audi and VW family, such as the Q3, Tiguan, Passat, or A3 with a 2.0 TDI Diesel engine, where dosing repeatability, thermal resistance, and proper cooperation with the engine control electronics are essential.

Construction and technical characteristics

The injector has been designed as a precise actuator for the exhaust gas treatment system in units powered by Diesel fuel. The nozzle design ensures proper atomization of the agent, which translates into uniform mixing with exhaust gases and effective emission reduction. The applied design solutions are adapted to work at high temperatures and in environments with increased chemical aggressiveness.

As an OEM part from the Audi brand, the injector is designed for compatibility with factory engine equipment, the wiring harness, and the controller software. This makes it possible to maintain the factory operating parameters of the SCR system without the need for installation modifications.

Condition, origin, and service application

The offered AdBlue injector is a used component, which allows for economical repair of the exhaust gas treatment system while maintaining the manufacturer's original specifications. This type of sub-assembly is particularly useful in situations where there are errors related to AdBlue dosing, a decrease in emission reduction efficiency, or messages about an SCR system failure.

Replacing the AdBlue injector nozzle is recommended, among other things, when incorrect atomization, contamination of the injection tip, problems with agent flow, or diagnostic errors indicating improper operation of the actuator are detected. Using an original solution from the Audi range allows for reducing the risk of compatibility problems and restoring the correct operating parameters of the system.

Benefits of using an original injector nozzle

Using a factory AdBlue injector in a 2.0 TDI Diesel engine ensures:

• consistent cooperation with the factory engine controller and SCR system,
• stable dosing of the AdBlue agent across the full load range,
• maintenance of exhaust emission parameters at the level intended by the manufacturer,
• reduction of the risk of errors and emergency mode related to the exhaust gas treatment system.

For users of vehicles with a Diesel engine, this is a practical service solution that allows for restoring the proper operation of the system without the need for costly modifications.

Comprehensive service of the injection and AdBlue system

If you are planning a comprehensive repair or upgrade of the injection and AdBlue system area in your Audi and need other elements from the same group, such as additional nozzles, supply elements, or dosing components, check the available parts in the Audi Injector Nozzles category.

To better understand the symptoms of wear and the potential consequences of neglecting elements responsible for dosing fuel and the agent in diesel engines, it is worth reading the guide "Diesel injector faults – how to recognize them and what are the risks of neglecting them", which discusses typical symptoms, diagnostic methods, and the consequences of delayed reaction.

If you are considering whether it is better to choose a new or used part when repairing the injection and AdBlue system, the article "Car parts – new or used? We compare costs, quality, and durability" may be helpful, as it discusses the differences in costs, durability, and cost-effectiveness of individual service solutions.