Audi A5 8T Diesel Fuel Pump Tank Sender Control Unit 8K0919050Q

Audi A5 8T Diesel Fuel Pump Tank Sender Control Unit is an original component from the Fuel pumps and level sensors group, designed for the fuel supply system of diesel engines in Audi models. This used OEM part ensures proper diesel fuel supply to the engine, stable engine operation, and correct integration with the vehicle's factory electronics.

Specifications and technical data

• SKU: 8K0919050Q
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0919050Q
• Substitutable numbers: 8K0919050Q, 8K0 919 050 Q
• Fuel type: Diesel
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel system

The fuel pump in the Audi A5 8T is responsible for transporting diesel fuel from the tank to the other components of the fuel supply system, maintaining the appropriate operating pressure and flow continuity. A correctly selected pump for a Diesel engine is crucial for:

• stable engine start-up under various operating conditions,
• smooth engine operation across the full load range,
• correct fuel dosing by the injection system,
• protecting other fuel system components from low pressure or cavitation.

The original pump from this series is designed specifically for the operating parameters of Audi diesel engines, which translates into predictable vehicle behavior and compliance with factory ECU maps.

Advantages of using an original Audi fuel pump

Using a factory fuel pump in the Audi A5 8T allows for maintaining the consistency of the entire fuel supply system according to the manufacturer's specifications. The most important benefits include:

• Full compatibility with the electrical and fuel system – connectors, hose diameters, and mounting points are matched to the factory tank and wiring harness.
• Stable fuel system operating parameters – the pump maintains flow and pressure characteristics consistent with the requirements of the diesel engine.
• Reduced risk of engine control unit errors – proper cooperation with sensors and the control module reduces the likelihood of fuel supply-related errors.
• Possibility of using existing service points – mechanics are familiar with the system design, which facilitates diagnostics and potential future repairs.

Component condition and installation aspects

The offered fuel pump is a used component, which allows for cost-effective repair of the fuel supply system while maintaining the original manufacturer's specifications. This type of part is particularly attractive for vehicles in intensive use, where reasonable service costs are important while maintaining appropriate quality.

During installation, it is recommended to:

• thoroughly clean the mounting seat in the fuel tank,
• verify the condition of seals and fuel lines,
• check the electrical installation powering the pump,
• bleed the fuel system after installation in accordance with the service procedure.

This approach minimizes the risk of leaks and start-up problems after replacement.

Selection by part numbers and fuel system diagnostics

The fuel pump from this series belongs to the group of OEM components that are selected based on manufacturer markings, reference numbers, and vehicle data. Proper selection is essential for maintaining compliance with factory parameters, so before purchasing, it is worth verifying the part's compatibility with the specific engine version and model year of the car.

To better understand the relationships between the fuel pump, injectors, and tank, as well as to learn the principles of diagnostics and regeneration, it is worth reading our guide: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration. The article discusses, among other things, selecting parts by OEM numbers and typical symptoms of fuel system component wear.

Economics and the ecological aspect of a used pump

Choosing a used fuel pump is a cost-effective solution that also supports reducing waste in the automotive industry. Reusing functional components allows for a reduction in the demand for new parts and aligns with the trend of responsible vehicle operation. If you want to learn more about the benefits of this approach, check out the article: Eco-driving: discover the benefits of used car parts.

Related Audi fuel system components

If you are planning a comprehensive repair or upgrade of the fuel system area in your Audi and need other elements from the same group, such as additional pumps, power modules, or fuel level sensors, check the available parts in the Audi fuel pumps and level sensors category.