VW Scirocco Mk3 Audi A3 8V A4 B8 High Pressure Fuel Pump 2.0 TFSI 06L127025N

VW Scirocco Mk3 Audi A3 8V A4 B8 High Pressure Fuel Pump 2.0 TFSI is an original, used high-pressure fuel pump from Volkswagen, designed for TFSI petrol engines. This component is responsible for the precise supply of the injection system, which is crucial for the stable operation of the engine, performance, and fuel consumption.

Specifications and technical data

• SKU: 06L127025N-2
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 06L127025N
• Substitutable numbers: 06L127025N, 06L 127 025 N, 5716031540143, 571 603 154 01
• Fuel type: Petrol
• Part type: High Pressure Pump
• Category: High Pressure Fuel Pumps

Purpose and function in the fuel system

The presented pump belongs to the High-pressure fuel pumps category and operates in a petrol fuel supply system, typical for 2.0 TFSI engines used in Volkswagen Scirocco Mk3, Audi A3 8V, and A4 B8 models. Its task is to increase the fuel pressure supplied from the low-pressure pump to the values required by direct injection, which enables proper mixture formation and efficient combustion.

A properly selected high-pressure pump ensures:

• stable pressure in the fuel rail under various engine loads,
• correct operation of petrol injectors,
• maintenance of factory power and torque parameters,
• reduction of the risk of misfires and uneven engine operation.

Original origin and mounting compatibility

The pump comes from the Volkswagen OE line, which means factory-fit compatibility with the fuel system of VAG group vehicles. Using an original component allows for maintaining compatibility with the factory engine control unit characteristics, injection maps, and cylinder head design, without the need for installation modifications.

Thanks to the presence of the OEM part number and interchangeable numbers (visible in the technical specification), precise compatibility verification is possible via VIN or markings on the old pump. This is particularly important for TFSI units, where design differences between variants can affect mounting methods and operating parameters.

Condition, application, and benefits of installation

The item is offered as a used high-pressure pump, which is a cost-effective solution while maintaining original manufacturing quality. Replacing a worn or damaged pump with a functional component of this type allows for restoring correct fuel pressure, reducing problems with hot starting, jerking during acceleration, or fuel injection system errors.

The main advantages of using an original high-pressure pump in a TFSI petrol engine include:

• maintaining the factory operating characteristics of the engine,
• better compatibility with stock engine control unit software,
• reducing the risk of leaks and pressure drops in the fuel system,
• the possibility of further diagnostics and service according to manufacturer procedures.

Selection, diagnostics, and operation of the fuel system

When selecting a high-pressure pump for a petrol engine, it is worth paying attention to the OEM number compatibility, fuel type, and engine generation. Diagnostic procedures and tips regarding the regeneration and operation of the entire fuel supply system can also be helpful. A detailed discussion of these issues can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, where, among other things, part selection by VIN/OEM, typical symptoms of wear, and service recommendations are described.

Modernization expansion – other Volkswagen high-pressure pumps

If you are planning a comprehensive repair or modernization of the engine area in your Volkswagen and need other components from the same group, such as additional pumps, supply lines, or mounting elements, check the available parts in the Volkswagen high-pressure fuel pumps category.