Audi Q7 4M Fuel Rail Injection Line 3.0 TDI Diesel Engine 057130764AB

The Audi Q7 4M 3.0 TDI Diesel Fuel Rail is a fuel system component designed for diesel engines, ensuring stable fuel supply at the correct pressure. This solution is dedicated to 3.0 TDI units, engineered to Audi manufacturer standards, making it ideal for service applications and professional fuel system repairs.

Specifications and technical data

• SKU: 057130764AS
• Mark: Audi
• Condition: Used
• OEM Part Number: 057130764AS
• Substitutable numbers: 057130764AS, 057 130 764 AS, 059130090FD, 059 130 090 FD
• Fuel type: Diesel
• Part type: Fuel Injector
• Category: Fuel Injectors

Purpose and Role in the Injection System

In a diesel engine, the fuel rail plays a crucial role in the common rail system – it is responsible for the uniform distribution of fuel to individual injectors and for stabilizing pressure throughout the entire system. For 3.0 TDI units, using the appropriate fuel rail is essential for maintaining proper injector operation, precise fuel metering, and correct combustion characteristics.

For the Audi Q7 4M model, a correctly selected fuel rail directly impacts:

• engine stability across the full range of loads and RPMs,
• maintaining adequate fuel pressure in the common rail system,
• diesel combustion efficiency and the smooth operation of the 3.0 TDI unit.

Compatibility and Technical Specifications

The presented fuel rail is designed for use in Diesel fuel supply systems, ensuring compliance with Audi diesel engine requirements. This product comes from the Audi parts line, which guarantees its original connection geometry and compatibility with the engine hardware in the Q7 4M model with a 3.0 TDI unit.

Key functional features include:

• dedicated application for Diesel engines on the Audi Q7 4M platform,
• maintaining original fuel flow characteristics within the common rail system,
• suitability for professional service and use in post-accident and routine repairs.

Category: Injector Nozzles and System Integration

Although this component belongs to the Injector Nozzles category, it is in practice an integral part of the entire fuel system, working in conjunction with injectors, the high-pressure pump, and the engine control unit. A correctly selected fuel rail:

• stabilizes injector operating parameters, leading to uniform fuel delivery,
• reduces the risk of pressure drops under dynamic driving conditions,
• supports the maintenance of proper performance for the 3.0 TDI unit while ensuring smooth operation.

Replacing the fuel rail is particularly recommended for issues with fuel pressure, uneven engine operation, fuel system errors, or after mechanical damage to fuel system components.

Condition, Origin, and Service Application

The fuel rail for the Audi Q7 4M 3.0 TDI is a used part from disassembly, allowing for an economical restoration of the fuel system's functionality while adhering to the original manufacturer's specifications. Used components of this type are often chosen by workshops specializing in diesel engine service, where both technical compatibility and cost-effectiveness are important.

Prior to installation, standard workshop procedures are recommended, including:

• verifying system tightness after installing the rail,
• checking fuel pressure parameters using computer diagnostics,
• confirming compatibility with existing injectors and engine accessories.

Why Choose an Audi Fuel Rail for the Q7 4M 3.0 TDI?

By using an original Audi fuel rail designed for the 3.0 TDI engine, you gain assurance of perfect fit with the factory fuel system and maintenance of the performance parameters intended by the manufacturer. This solution is particularly beneficial when you prioritize:

• maintaining stock performance and operating characteristics of the diesel engine,
• minimizing the risk of compatibility issues common with aftermarket parts of uncertain origin,
• a professional approach to fuel system repair in advanced diesel engine designs.

If you need other components from the injector nozzles category dedicated to this brand, check out the Audi injector nozzles available in our assortment to complete your fuel system component set.

For a comparative perspective on repair approaches using used parts in other brands, you can consult a practical guide on BMW electronics: how to care for iDrive systems and electronic modules of BMW 3 and 5 Series using used parts. This will help you better assess the benefits of using original used components for your Audi as well.