Audi A8 D4 3.0 TDI Diesel Fuel Injector Nozzle Jet 059130277CH

The Audi A8 D4 3.0 TDI Diesel Injector Fuel Injector Nozzle is a precise fuel system component designed for the diesel engine in the luxurious Audi A8 D4 generation limousine. It is responsible for accurate fuel metering, which is crucial for the engine's smooth operation, performance, and stable idling.

Specifications and technical data

• SKU: 059130277CH
• Mark: Audi
• Condition: Used
• OEM Part Number: 059130277CH
• Substitutable numbers: 059130277CH, 059 130 277 CH
• Location on the vehicle: Front
• Fuel type: Diesel
• Category: Fuel Injectors

Technical Characteristics of the Audi A8 D4 3.0 TDI Injector

The presented diesel engine injector nozzle operates at the front of the powertrain, in close proximity to the combustion chamber. A properly selected injector ensures:

• stable fuel atomization across the entire engine load range,
• precise diesel fuel metering during cold starts and at high temperatures,
• maintenance of correct combustion characteristics, which contributes to preserving power and torque.

A correctly selected fuel injection nozzle directly influences the even operation of all cylinders, vibration reduction, and proper interaction with the diesel engine control electronics.

Purpose and Compatibility with Diesel Systems

The injector is designed to operate within a Diesel fuel system, characteristic of the 3.0 TDI units in the Audi A8 D4. Using the appropriate injection component allows for maintaining:

• correct fuel rail pressure and proper injection timing,
• engine operating parameters consistent with the factory control unit maps,
• appropriate throttle response and smooth acceleration without jerking.

By maintaining compatibility with the 3.0 TDI unit's design, the fuel injection nozzle helps preserve factory performance and reduces the risk of incorrect mixture combustion.

Component Condition and Installation Aspects

The offered injector is a used injector nozzle, sourced from an original Audi fuel system. This type of component is often chosen as an economical solution for repairing 3.0 TDI units when a single injector needs replacement or when assembling a set.

During installation, it is recommended to:

• thoroughly clean the cylinder head seat and use new seals,
• monitor operating parameters on a diagnostic bench after starting the engine,
• check injector quantity corrections in the engine control unit to confirm proper system operation.

A correctly installed injector reduces the risk of blow-by, fuel leaks, and uneven engine operation.

Why is a Functional Diesel Injector So Important?

In the 3.0 TDI engine, each injector directly impacts exhaust emissions, fuel consumption, and driving dynamics. A worn or damaged nozzle can cause:

• difficulty starting a cold or warm engine,
• uneven idling and a loss of power,
• increased smoke and accelerated wear of auxiliary components.

If you want to better understand the symptoms and consequences of damage to such components, it is worth reading the article: Diesel Injector Failures – How to Recognize Them and What Neglecting Them Entails. This provides practical knowledge for planning fuel system repairs.

Audi Injector Nozzles – Selecting Parts for a Specific Model

When servicing the fuel system in an Audi A8 D4, it is advisable to consider replacing or selecting other components from the same group. If you are looking for other Audi injector nozzles, check the Audi injector nozzles available in our assortment to select components that match the specifics of your diesel engine.