Audi A4 B9 Diesel Engine 2.0 TDI Quattro Fuel Injector 04L130277P

The Audi A4 B9 2.0 TDI Quattro Fuel Injector is an original part of the diesel fuel system, designed for 2.0 TDI diesel engines with Quattro all-wheel drive. The precise design of the injector ensures stable fuel delivery, which translates to smooth engine operation, proper running characteristics, and predictable performance.

Specifications and technical data

• SKU: 04L130277P
• Mark: Audi
• Condition: Used
• OEM Part Number: 04L130277P
• Substitutable numbers: 04L130277P, 04L 130 277 P
• Fuel type: Diesel
• Category: Fuel Injectors

Purpose and Role of the Injector in the Audi A4 B9 2.0 TDI Quattro

The presented fuel injector for the 2.0 TDI Quattro Diesel engine operates in a high-pressure system, responsible for precisely atomizing diesel fuel in the combustion chamber. A correctly functioning injector nozzle is crucial for:

• maintaining the correct fuel pressure and dosage across the entire RPM range,
• stable engine operation at idle and under load,
• reducing smoke and exhaust emissions while maintaining adequate power,
• optimal diesel fuel consumption in daily use.

Thanks to its compatibility with the specific 2.0 TDI engine configuration with Quattro drive, the injector works seamlessly with the factory engine control unit and injection system, maintaining the parameters specified by the manufacturer.

Category: Audi Injector Nozzles – Precision and Compatibility

This component belongs to the Injector Nozzles category, which are sub-assemblies responsible for the final stage of fuel delivery to the cylinder. In Audi vehicles with diesel engines, a correctly selected nozzle directly influences:

• uniform fuel atomization in the combustion chamber,
• reduction of knocking combustion and unwanted vibrations,
• easier cold engine starting while maintaining the correct starting fuel dose.

If you are looking for other parts in this group, check the available Audi injector nozzles to find a complete solution for your fuel system.

Technical Characteristics of the Diesel Injector

The injector is designed to work with Diesel fuel, meaning it is resistant to high operating pressures and demanding thermal conditions in a diesel engine. The nozzle design is adapted to the specific combustion characteristics of diesel fuel, ensuring:

• precise fuel spray formation in the combustion chamber,
• correct spray pattern and angle consistent with the geometry of the piston and cylinder head,
• stable operating parameters across a wide range of loads and temperatures.

An injector configured in this way allows for the maintenance of the original operating characteristics of the 2.0 TDI unit, which is important for both the dynamics and durability of the engine.

Condition, Selection, and Diagnostics of the Injection System

The offered part comes from the group of used injector nozzles, allowing for an economical repair of the fuel system while maintaining original specifications. Before installation, it is recommended to verify the other components of the fuel system (high-pressure pump, lines, fuel filter) to avoid re-damaging the injector.

If you want to better understand the symptoms of wear and malfunction of injectors, the guide will be helpful: Diesel Injector Faults – How to Recognize Them and What Neglecting Them Entails. You will find practical tips on diagnostics and the consequences of driving with a faulty injection system.

Benefits of Using an Original Injector in the Audi A4 B9

Using a dedicated fuel injector for the Audi A4 B9 2.0 TDI Quattro maintains the consistency of the entire powertrain. The most important benefits include:

• maintaining factory engine operating parameters without the need for software modifications,
• improved engine smoothness compared to aftermarket alternatives with uncertain specifications,
• compatibility with other injection system components designed for the Quattro version,
• possibility of further computer diagnostics based on manufacturer reference values.

When selecting a part, it is advisable to use the OEM part number and interchangeable numbers visible in the product's technical specifications to ensure full compatibility with your vehicle's specific configuration.