Audi A3 8V VW Golf Mk7 Fuel Injector Injection Diesel Engine 2.0 TDI 04L130277AK

The Audi A3 8V VW Golf Mk7 Fuel Injector 2.0 TDI is a precision injector nozzle designed for diesel engines, engineered for the stable operation of the 2.0 TDI unit. This component is responsible for accurate diesel fuel dosing, which translates to smooth engine running, proper dynamics, and controlled fuel consumption.

Specifications and technical data

• SKU: 04L130277AK
• Mark: Audi
• Condition: Used
• OEM Part Number: 04L130277AK
• Substitutable numbers: 04L130277AK, 04L 130 277 AK, 0445110475, 0 445 110 475
• Fuel type: Diesel
• Part type: Fuel Injector
• Category: Fuel Injectors

Injector Technical Characteristics

The presented injector nozzle belongs to the Injector Nozzles category and is designed for Diesel fuel systems. The injector's design ensures precise fuel atomization in the combustion chamber, which is crucial for the correct combustion process in TDI engines.

The injector has been designed to work with a common rail system, where high dose repeatability and stable operating pressure are required. The appropriately selected opening and closing characteristics of the needle allow for:

• maintaining smooth engine operation across the entire RPM range,
• reducing smoke during acceleration and under load,
• more predictable throttle response in everyday use.

Application in Audi and VW Vehicles

The injector has been developed for 2.0 TDI units used in, among others, the Audi A3 8V and VW Golf Mk7. This ensures it is properly matched to the operating parameters of these engines, both in terms of performance and injection characteristics.

Original origin from the Audi group means adherence to factory manufacturing standards and compatibility with engine accessories. This is particularly important for modern diesel units, where the injection system directly influences:

• idle stability,
• cold start ease,
• exhaust emissions and cooperation with the exhaust gas aftertreatment system.

Condition and Service Purpose

The item is offered as a used injector nozzle, providing a cost-effective solution for users seeking a replacement part within a reasonable budget while maintaining original specifications. This type of component is often chosen for:

• single cylinder repairs, when only one injector has been damaged,
• comparative diagnostics – swapping injectors to confirm a fault,
• servicing high-mileage engines, where replacement of selected fuel system components is required.

Due to the nature of injector operation, professional assessment on a test bench and installation by a specialized service center are recommended before fitting, to ensure correct tightening, coding (if required by the specific ECU), and system bleeding.

Benefits of Using a Functional Diesel Injector

A correctly functioning injector nozzle in a 2.0 TDI engine translates to a range of practical benefits in everyday operation:

• smoother engine operation – reduced vibrations and jerking, especially at low RPMs,
• stable performance – predictable acceleration and better flexibility,
• fuel consumption control – proper diesel dosing helps maintain factory fuel economy,
• reduced risk of secondary damage – correct injection minimizes mechanical and thermal stress in the combustion chamber.

If you want to better understand how fuel system problems manifest and when it's worth considering such a component, check out the article: diesel injector faults – symptoms, consequences, and diagnostics. This provides practical knowledge for planning repairs.

Other Audi Injector Nozzles

If you are also looking for other Audi injector nozzles for similar service applications or to compare available variants, check out the Audi injector nozzles category, where you will find a wider selection of fuel system components from this brand.