Audi Q7 4L 4.2 TDI Diesel Fuel Injection High Pressure Pump 057130755M

Audi Q7 4L 4.2 TDI Diesel Fuel Injection High Pressure Pump is a component from the High-pressure fuel pumps group, designed for diesel engine fuel supply systems. This genuine used Audi part ensures the correct operating parameters of the injection system, stable fuel pressure, and proper integration with diesel engine accessories.

Specifications and technical data

• SKU: 057130755M
• Mark: Audi
• Condition: Used
• OEM Part Number: 057130755M
• Substitutable numbers: 057130755M, 057 130 755 M
• Fuel type: Diesel
• Category: High Pressure Fuel Pumps

Purpose and role in the fuel system

The injection pump in a 4.2 TDI Diesel engine is responsible for generating the high fuel pressure necessary for the injectors to function correctly. In practice, this means:

• precise dosing of diesel fuel to the rail and injectors,
• maintaining stable pressure across the entire engine load range,
• cooperation with control electronics to optimize combustion.

By maintaining factory operating characteristics, this pump helps reduce power loss, rough engine operation, and starting issues typical of a faulty fuel supply system.

Benefits of using a genuine Audi pump

A genuine injection pump from the High-pressure fuel pumps group is designed for a specific type of engine, which translates into a perfect match for the diesel engine's parameters and control system. Compared to aftermarket replacements, this ensures:

• preservation of factory injection maps and engine operating characteristics,
• better integration with sensors and the engine control unit (ECU),
• lower risk of mechanical and hydraulic compatibility issues.

A used OEM part is a solution that allows for reduced repair costs while maintaining the design intended by the vehicle manufacturer, which is particularly important in advanced diesel engines.

Diesel fuel system – technical and operational aspects

In Diesel engines, maintaining proper fuel pressure and cleanliness is crucial. The injection pump works with the filter, lines, rail, and injectors to form a cohesive high-pressure system. Improper selection or wear of the pump can result in:

• loss of vehicle power and dynamics,
• increased fuel consumption,
• accelerated wear of the injectors.

To better understand the relationships between the pump, injectors, and fuel tank, and to learn about diagnostics and regeneration principles, it is worth checking out the expert material Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which discusses selecting components by OEM and VIN numbers as well as typical failure symptoms.

Selection, compatibility, and purchasing a used pump

When selecting this injection pump for an Audi Q7 4L 4.2 TDI, it is crucial to verify compatibility with the specific engine version and control system. Manufacturer markings, OEM part numbers, and interchangeable numbers are helpful, allowing for precise matching of the component to a given vehicle.

If you want to streamline the process of choosing parts from the secondary market and avoid incorrect purchases, use the practical guide how to professionally select used car parts considering OEM numbers, which describes step-by-step how to verify compatibility and the condition of components before installation.

Expansion and service of the Audi high-pressure system

If you are planning a comprehensive repair or upgrade of your Audi's engine fuel supply area and need other components from the same group, such as additional pumps, supply lines, or pressure control elements, check out the available parts in the Audi High-pressure fuel pumps category.

Such an approach – simultaneous inspection of the pump, injectors, lines, and accessories – reduces the risk of the fault returning and ensures the consistency of the entire fuel system's parameters, which has a direct impact on engine refinement and durability.