Audi Q5 8R Q7 4L Fuel Injection Line Pipe Rail Injector Set 3.0 TDI 059130310AJ

Audi Q5 8R Q7 4L Fuel Injection Line Pipe Rail Injector Set is an original set of components from the Lines, hoses and pipes group, designed for the 3.0 TDI diesel engine fuel system. The set ensures precise fuel delivery to the fuel rail, which promotes stable engine operation and facilitates professional repair or replacement of damaged lines.

Specifications and technical data

• SKU: 059130310AJ-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 059130310AJ
• Substitutable numbers: 059130310AJ, 059 130 310 AJ, 059130312N, 059 130 312 N, 059130309AP, 059 130 309 AP, 059130241BT, 059 130 241 BT
• Part type: Hose
• Category: Hoses, Lines & Pipes

Application and function in the fuel system

The presented fuel rail line set is a component of the diesel engine fuel system, responsible for the safe and leak-proof routing of high-pressure fuel between the pump and the fuel rail. In Audi Q5 8R and Audi Q7 4L vehicles with a 3.0 TDI engine, the proper condition of these lines has a direct impact on uniform fuel dosing, engine smoothness, and reducing the risk of leaks.

By maintaining factory geometry and diameters, the set allows for proper fuel flow, which is essential both for standard engine parameters and after professional fuel system repairs.

Construction, fitment and compatibility

The set of lines has been designed by the manufacturer specifically for certain Audi models, which translates into precise fitment to the mounts and connectors in the engine bay. Properly profiled line sections facilitate routing according to the factory path, minimizing stress and the risk of rubbing against other engine components.

The original origin from the Audi group promotes consistency with other fuel system components and facilitates part identification via the OEM number and available interchangeable numbers, which are detailed in the product's technical specifications.

Condition, verification and benefits of choosing a used set

The item comes from dismantling and is offered as a used fuel rail line set. This type of part, provided it maintains proper tightness and is free of mechanical damage, can successfully continue to operate in a vehicle, representing an economical alternative to new components. Choosing an original used set allows you to maintain factory build quality at a lower service cost.

Purchasing a used item from the Lines, hoses and pipes group is also an environmentally friendly solution – it reduces the demand for the production of new parts and decreases waste. If you want to better understand the impact of such decisions on ecology, it is worth reading the article Sustainable automotive: How purchasing original used parts reduces the carbon footprint and protects the environment?.

Practical assembly and operational tips

When installing the fuel rail line set, it is recommended to work in workshop conditions, adhering to safety procedures for high-pressure systems. It is crucial to:

• thoroughly clean the seats and mating surfaces before installation,
• check the condition of seals and connectors,
• route the lines according to the factory path, without excessive twisting or bending,
• check the system for leaks after the first engine start.

This approach allows you to fully utilize the potential of the set and reduce the risk of subsequent leaks or line vibrations during engine operation.

Service expansion within the Audi fuel system

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other elements from the same group, such as additional lines, flexible fuel hoses, or metal supply pipes, check the available parts in the Audi lines, hoses and pipes category.