Volkswagen Golf 6 Audi A3 Fuel Injector Rail Line 1.6 TDI Diesel 03L130089B

The Volkswagen Golf 6 Audi A3 1.6 TDI Fuel Rail is an original component of the diesel engine fuel system, designed for 1.6 TDI units in Volkswagen Golf 6 and Audi A3 models. This product comes from the Volkswagen Group, ensuring a factory fit for the common rail system and stable diesel engine operating parameters.

Specifications and technical data

• SKU: 03L130089B
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 03L130089B
• Substitutable numbers: 03L130089B, 03L 130 089 B
• Fuel type: Diesel
• Category: Fuel Injectors

Purpose and Function in the Injection System

In a 1.6 TDI engine, the fuel rail is responsible for storing and evenly distributing fuel at high pressure to individual injectors. In common rail systems, its proper operation is crucial for:

• stable fuel pressure across the entire range of diesel engine loads,
• precise diesel fuel metering by the injector nozzles,
• reducing engine vibrations and noise, especially at idle,
• decreasing fuel consumption and exhaust emissions while maintaining nominal factory parameters.

When combined with correctly functioning injector nozzles, the fuel rail forms a cohesive, efficient fuel supply system that contributes to the TDI engine's smooth operation and durability.

Construction and Advantages of an Original Fuel Rail

The offered fuel rail belongs to the Injector Nozzles category, but in practice, it is the central element for fuel distribution in the common rail system. Using an original component from the Volkswagen Group means:

• factory fit for the 1.6 TDI engine in Volkswagen Golf 6 and Audi A3,
• maintaining the manufacturer's designed pressure characteristics across the entire RPM range,
• compatibility with the factory control electronics and fuel pressure sensors,
• appropriate geometry of connection ports, which facilitates installation and minimizes the risk of leaks.

An original fuel rail is specifically designed for diesel engines, allowing for safe operation at the high pressures typical of modern diesel units.

Condition, Application, and Vehicle Selection

The fuel rail is a used part, which is a cost-effective solution for users seeking a technically sound component at a reasonable price. When selecting for a specific Volkswagen Golf 6 or Audi A3 1.6 TDI, it is important to consider:

• compatibility with the Diesel fuel type used in the vehicle,
• belonging to the Volkswagen Group, which facilitates integration with factory equipment,
• compatibility with existing injector nozzles and high-pressure lines.

A correctly selected fuel rail allows for the restoration of proper fuel system operating parameters, especially in cases of previous fuel pressure issues, rough engine running, or performance loss.

Operation, Diagnostics, and Prevention

For common rail systems in diesel engines, early detection of irregularities in injector and fuel rail operation is crucial. Symptoms such as starting difficulties, smoking, power loss, or fluctuating idle speed may indicate problems with the injector nozzles or the fuel rail itself. A detailed discussion of typical symptoms and diagnostic methods can be found in the article diesel injector faults – symptoms, consequences, and diagnostics, which helps assess when replacing fuel system components is justified.

Regular monitoring of fuel system operating parameters and using high-quality fuel helps reduce the risk of damage to the fuel rail and injector nozzles, thereby extending the lifespan of the entire 1.6 TDI engine.

Other Volkswagen Injector Nozzles

If you plan to replace other components during your common rail system service, it is worth considering selecting compatible Volkswagen injector nozzles. For users looking for alternative configurations, the Volkswagen injector nozzles category has been prepared, offering a wide selection of components for various models of this brand.