Audi A4 B8 A5 8T Q5 8R 2.0 TDI Diesel Fuel Injector 03L130277

The Audi A4 B8 2.0 TDI Fuel Injector is a precise component of the diesel engine's fuel system, responsible for accurately dosing diesel fuel into the combustion chamber. A properly selected injector ensures stable operation of the 2.0 TDI unit, smooth running, and predictable performance in everyday use.

Specifications and technical data

• SKU: 03L130277
• Mark: Audi
• Condition: Used
• OEM Part Number: 03L130277
• Substitutable numbers: 03L130277, 03L 130 277
• Location on the vehicle: Front
• Fuel type: Diesel
• Category: Fuel Injectors

Technical Characteristics of the Audi 2.0 TDI Injector

The presented fuel injector for Audi A4 B8 2.0 TDI belongs to the category of injector nozzles designed for diesel engines. The component operates at the front of the engine unit, in close proximity to the cylinder head, where it is responsible for forming a precise high-pressure fuel stream. A correctly functioning injector nozzle influences:

• stable mixture combustion across the entire RPM range,
• maintaining the correct power and torque of the 2.0 TDI engine,
• reducing smoke and improving the smoothness of operation of the diesel unit.

Purpose and Compatibility with Diesel Systems

The injector is designed to work with a Diesel fuel system, where maintaining the correct pressure and injection timing is crucial. The design of the injector nozzle is adapted to the characteristics of the 2.0 TDI engine installed in the Audi A4 B8, which allows for maintaining the factory operating parameters of the engine unit after replacing the component.

Selecting parts according to manufacturer designations and reference numbers allows for matching the injector to a specific vehicle configuration, minimizing the risk of starting problems, uneven idling, or loss of dynamics.

Benefits of Using an Original Injector Nozzle

Using the correct Audi injector nozzle in the 2.0 TDI engine translates into a number of practical operational benefits:

• better fuel dose control – correct diesel dosing reduces the risk of overfilling and excessive fuel consumption,
• maintaining even cylinder operation – each cylinder receives a similar amount of fuel, which stabilizes the unit's operation,
• reducing load on other system components – proper injection relieves the turbocharger, particulate filter, and exhaust system,
• easier diagnostics and service – compliance with factory parameters facilitates the work of service centers using diagnostic testers.

Condition, Installation, and Service Application

The offered injector comes from the group of used parts, which allows for economical repair of the injection system while maintaining the appropriate quality of the component. This type of component is often used in professional workshops for:

• repairing individual cylinders, when only one injector has been damaged,
• comparative diagnostics, when it is necessary to rule out a fault in a specific nozzle,
• restoring the factory configuration after previous, unsuccessful fuel system modifications.

Before installation, the standard service procedure is recommended: leak testing, checking operating parameters on a diagnostic bench, and installation according to the vehicle manufacturer's recommendations, maintaining cleanliness around the fuel rail and injector seats in the cylinder head.

Diagnostics and Prevention of the Injection System

If you suspect problems with diesel injection in the 2.0 TDI engine, it is worth consulting an expert guide describing typical symptoms and consequences of neglect. Detailed information can be found in the article “Diesel Injector Faults – How to Recognize Them and What Their Neglect Threatens”, which discusses symptoms, possible engine consequences, and basic diagnostic methods.

Other Audi Injector Nozzles

If you are looking for other Audi injector nozzles for different engine versions or models of this brand, check the available assortment in the Audi injector nozzles category, where you will find a wide selection of components for diesel systems and the possibility to match parts according to manufacturer designations.