Audi A5 8T 3.0 TDI Diesel Fuel Injector Nozzle Jet 059130277BE

The Audi A5 8T 3.0 TDI Diesel Injector Nozzle is a precise fuel system component designed for 3.0 TDI diesel engines in the Audi A5 8T model. It is responsible for the proper atomization of diesel fuel in the combustion chamber, which is crucial for the engine's running smoothness, performance, and stable fuel consumption.

Specifications and technical data

• SKU: 059130277BE
• Mark: Audi
• Condition: Used
• OEM Part Number: 059130277BE
• Substitutable numbers: 059130277BE, 059 130 277 BE, 059130277AR, 059 130 277 AR
• Fuel type: Diesel
• Category: Fuel Injectors

Purpose and Role in the Injection System

The injector nozzle in a 3.0 TDI Diesel engine is responsible for forming a precise high-pressure fuel stream. A correctly functioning nozzle ensures:

• stable combustion across the full engine load range,
• smooth engine operation without vibrations or misfires,
• maintenance of factory power and torque parameters,
• reduction of smoke and excessive exhaust emissions.

In Audi diesel engines, even minor deviations in nozzle operation can lead to a drop in performance, increased fuel consumption, and accelerated wear of other injection system components.

Technical Characteristics and Compatibility

The presented Audi injector nozzle belongs to the Injector Nozzles category and is a component of the diesel fuel supply system. It is designed to work with the factory Audi injection system, which allows for maintaining:

• correct injection pressure within the range specified by the manufacturer,
• appropriate fuel spray pattern tailored to the 3.0 TDI combustion chamber,
• consistency with the factory ECU control strategy (injection times, correction quantities),
• diagnosability using standard Audi service tools.

Proper nozzle matching to a specific engine is crucial to avoid starting problems, unstable idling, or excessive load on the turbocharger and particulate filter.

Component Condition and Service Application

The offered fuel injector nozzle for Audi A5 8T 3.0 TDI is from the aftermarket and is intended for users and workshops seeking an economical solution while maintaining compatibility with the original injection system design. It can be used as:

• a replacement for a damaged nozzle in a single injector,
• a component to restore correct cylinder operation in case of localized fuel delivery issues,
• a part for service applications during injector refurbishment in a specialized facility.

Before installation, it is recommended to perform a standard fuel system inspection and cleaning procedure to prevent the newly installed nozzle from being damaged by contaminants or debris from the high-pressure pump.

Impact on Engine Operation and Performance

A functional injector nozzle in a 3.0 TDI engine directly impacts the vehicle's key performance parameters. Replacing a worn component with a correctly matched part allows for:

• reduced fuel consumption through precise dosing,
• decreased risk of piston and valve damage resulting from improper combustion,
• improved engine smoothness – quieter operation, fewer vibrations, stable RPMs,
• maintenance of exhaust gas aftertreatment system efficiency, including the DPF filter and catalytic converter.

Regular inspection of injector and nozzle condition is particularly important for diesel engines used for short distances or under heavy load.

Diagnostics and Technical Knowledge

If you suspect problems with the injection system in your Audi diesel engine, it is worth familiarizing yourself with practical tips regarding symptoms and consequences of damage. Detailed information can be found in the article Diesel Injector Failures – How to Recognize Them and What Neglecting Them Entails, which discusses typical symptoms, possible consequences, and diagnostic methods.

Other Audi Injector Nozzles

If you are also looking for other Audi injector nozzles compatible with different models or engine versions, check out the Audi injector nozzles available in our assortment to select the right part for your specific engine number and vehicle configuration.