Audi A4 B9 Q7 4M Fuel Injection Rail Line Pipe Left N/S 3.0 TDI 059130089ED

Audi A4 B9 Q7 4M Fuel Rail Hose Left 3.0 TDI is a specialized component of the diesel engine fuel system, designed for precise fuel distribution to the injectors on the left side of the engine. This product, from the injector nozzles category, has been engineered to maintain stable operating parameters of modern diesel engines.

Specifications and technical data

• SKU: 059130089ED
• Mark: Audi
• Condition: Used
• OEM Part Number: 059130089ED
• Substitutable numbers: 059130089ED, 059 130 089 ED
• Location on the vehicle: Left
• Fuel type: Diesel
• Category: Fuel Injectors

Purpose and Function in the Injection System

The left-side fuel rail hose is responsible for uniformly supplying fuel to the respective injectors in the 3.0 TDI engine. In modern diesel units, stable pressure and proper fuel distribution are crucial for:

• maintaining proper engine operation across the full range of loads,
• optimal mixture combustion with low fuel consumption,
• reducing vibrations and noise characteristic of diesel engines,
• preserving the efficiency of the injection system over the long term.

A correctly selected component in this part of the injection system directly impacts vehicle dynamics, throttle response, and the stable operation of the power unit in Audi A4 B9 and Audi Q7 4M.

Compatibility with 3.0 TDI Diesel Engine

The rail has been designed to work with Diesel engines requiring precise fuel pressure parameter maintenance. The hose's construction is adapted to the architecture of the 3.0 TDI unit, allowing for:

• correct integration with the factory fuel system without the need for installation modifications,
• preservation of the original hose routing geometry on the left side of the engine,
• consistency with Audi's factory solutions regarding fuel system safety and reliability.

As a result, the fuel rail hose serves as a functional replacement for the factory-fitted component in vehicles of this brand.

Product Characteristics and Application Benefits

This component comes from the Audi brand, meaning its geometry, mounting points, and connection method to the injection system are consistent with the solutions used in the manufacturer's vehicles. In practice, this translates to:

• secure fitment with the existing installation in the engine bay,
• stable fuel delivery to the injectors on the left side of the unit,
• maintenance of factory system operating parameters with proper installation.

The product is offered as a used part, allowing for economical repair or restoration of the injection system's functionality while maintaining the original design used in Audi vehicles.

Installation and Service Application

The placement of the hose on the left side of the vehicle requires attention to correct orientation during installation. In service applications, this type of component is primarily used for:

• injection system repairs after mechanical damage or leaks,
• restoring the factory fuel supply configuration in 3.0 TDI engines,
• diagnosing and eliminating problems with fuel delivery to injectors on one side of the unit.

It is recommended that installation be performed by a service center experienced with diesel injection systems to fully utilize the parameters offered by this component.

Related Products and Technical Materials

If you are looking for other Audi injector nozzles for your vehicle, check out the Audi injector nozzles available in our store to select a complete solution for the entire fuel system.

When planning an upgrade or repair of the fuel system using parts from the secondary market, it is worth consulting the guide tuning with used parts – how to gain performance without losing a fortune, which discusses the practical aspects of safely using used components in passenger cars.