Audi A4 B7 2.7 TDI BPP Diesel Engine Fuel Injector Rail 059130089AA

Audi A4 B7 2.7 TDI BPP Fuel Rail is a component of the diesel fuel supply system, designed for Audi diesel engines. It is responsible for the stable distribution of fuel to the injectors, which directly impacts the engine's running smoothness, performance, and fuel consumption. This is a solution for users looking for a proven, factory-spec fuel rail for their diesel engine.

Specifications and technical data

• SKU: 059130089P
• Mark: Audi
• Condition: Used
• OEM Part Number: 059130089P
• Substitutable numbers: 059130089P, 059 130 089 P
• Fuel type: Diesel
• Category: Fuel Injectors

Purpose and Role of the Fuel Rail in Audi A4 B7 2.7 TDI

The Fuel Rail for Audi A4 B7 2.7 TDI BPP operates within the common rail system, where maintaining the correct fuel pressure for all cylinders is crucial. A properly selected fuel rail allows for:

• stable injector supply under varying engine load,
• maintaining smooth engine operation across the entire RPM range,
• limiting fuel pressure fluctuations, which promotes precise diesel fuel metering.

This component is essential for both injector durability and the proper functioning of the engine control unit, which determines the fuel dose based on the pressure in the fuel rail.

Category: Injector Nozzles and their Relation to the Fuel System

The product belongs to the Injector Nozzles category, highlighting its close connection to precise fuel delivery in diesel engines. In practice, the fuel rail works in conjunction with the injectors, a pressure sensor, and a high-pressure pump, forming a cohesive fuel supply system. A correctly selected component helps to:

• maintain appropriate combustion parameters in a diesel engine,
• reduce the risk of uneven running at idle and under load,
• preserve correct cold and hot start characteristics.

Due to the specific nature of Diesel fuel, the sealing and proper flow within the fuel rail are important for protecting the injectors from hydraulic overload.

Product Characteristics and Condition

The offered fuel rail is a part originating from an Audi vehicle. The use of original geometry and connector port layout facilitates installation in the engine bay without the need for modifications to the fuel system or mounting points. The product is in used condition, allowing for an economical restoration of the fuel system's functionality while maintaining the factory design.

Choosing such a solution is beneficial in situations where:

• the existing fuel rail has suffered mechanical damage or external corrosion,
• replacement is necessary as part of injector system diagnostics,
• you are looking for a part that matches the factory design for a specific Audi A4 B7 2.7 TDI BPP engine variant.

Benefits of Using the Correct Fuel Rail in a Diesel Engine

A properly selected fuel rail in a diesel engine translates into a range of practical operational benefits:

• more predictable throttle response due to stable pressure in the common rail system,
• reduced risk of fuel overflow or under-delivery to individual cylinders,
• better cooperation with the control electronics, which rely on signals from the fuel rail pressure sensors,
• support for even mixture combustion, which can contribute to maintaining correct exhaust emissions.

For Audi diesel engine owners, this is a key component for comprehensive injector system maintenance, especially when injectors or the high-pressure pump are also being replaced.

Injector System Diagnostics and Technical Knowledge

When experiencing issues with diesel engine operation, it is worth examining the entire fuel system, not just a single component. Specialized material describing typical symptoms and procedures for checking common rail components can be helpful. Detailed information can be found in the article Diesel Injector Failures – How to Recognize Them and What Neglecting Them Entails, which discusses the symptoms, consequences, and diagnostics of fuel injection problems.

Other Audi Injector Nozzles

If you are also looking for other Audi injector nozzles for your car, check out our dedicated offer for this brand. You can find a full list of products here: Audi injector nozzles, where you can select components for a specific model and engine version.