Audi A3 8P 1.6 BGU Petrol Engine Fuel Pump Sender Tank Unit 1K0919051AP

Audi A3 8P 1.6 BGU Petrol Engine Fuel Pump Sender Tank Unit is an original fuel system component designed for precise fuel delivery and accurate measurement of fuel levels in the tank. This tank unit, mounted directly inside the fuel tank, ensures a stable power supply to the engine and proper communication with the instrument cluster. As a result, the petrol engine runs smoothly, and the driver receives reliable information about the fuel level.

Specifications and technical data

• SKU: 1K0919051AP
• Mark: Audi
• Condition: Used
• OEM Part Number: 1K0919051AP
• Substitutable numbers: 1K0919051AP, 1K0 919 051 AP
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel system

The offered fuel pump with a float assembly is dedicated to the Audi A3 8P generation model with the 1.6 BGU petrol engine. The unit is responsible for generating the correct system pressure and continuously delivering fuel to the fuel rail, which is crucial for the proper operation of the engine across the full load range.

The built-in fuel level sensor sends a signal to the vehicle's electronics, allowing the dashboard gauge to display the current fuel level. A properly functioning tank module reduces the risk of air entering the system, starting issues, and uneven engine performance when fuel levels are low.

Construction of the fuel pump and level sensor assembly

The set forms an integrated tank module containing an electric fuel pump and a float mechanism with a sensor. This design:

• facilitates installation and removal from the fuel tank,
• ensures stable mounting of working components,
• reduces the number of connections and potential leaks in the system.

The factory-applied solution in Audi allows for maintaining proper fuel flow and pressure parameters, as well as consistent cooperation with the vehicle's electrical system. Thanks to this, the petrol supply system maintains its factory operating characteristics.

Benefits of using an original used module

Choosing an original fuel pump with a level sensor from a dismantler is a reasonable compromise between cost and quality. The OEM component is structurally matched to the specific engine and body version, which minimizes the risk of installation problems and electrical incompatibilities. The used module retains its factory geometry, mounting points, and operating characteristics, meaning it does not require any system modifications.

Compared to many aftermarket replacements, the original tank assembly usually works better with the vehicle's electronics, including the fuel level measurement system. This translates into stable readings on the gauges and a lower risk of diagnostic errors related to the fuel system.

Operation, diagnostics, and part selection

When selecting a fuel pump with a level sensor for the Audi A3 8P 1.6 BGU, it is worth paying attention to compatibility with the engine version and fuel type – in this case, it is a system designed for petrol. A correctly selected module facilitates plug-and-play installation without the need for mechanical or electrical adaptation.

Typical symptoms of wear or damage to this component include difficult starting, power drops under higher loads, intermittent engine operation at low fuel levels, and incorrect fuel gauge readings. In such situations, replacing the complete tank assembly is often the fastest and most predictable service solution.

If you are planning a comprehensive repair or upgrade of the fuel supply area in your Audi and need other components from the same group, such as pump modules, float assemblies, or complete tank inserts, check the available parts in the Audi fuel pumps and level sensors category.

Used OEM components and electronics – practical tips

In the case of modern cars, such as the Audi A3 8P, the fuel supply system works with advanced control electronics. When replacing the tank module, it is worth knowing the basic principles of selecting and diagnosing used electronic components and sensors to avoid compatibility issues and engine control unit errors. Practical advice on choosing and installing such elements can be found in the article "The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?".

If you are considering a wider use of original used parts in your car and want to better understand when they are a more favorable choice than replacements, the guide "5 reasons why a used OEM part is a better choice than a replacement", which discusses practical selection criteria using popular models as examples, will also be helpful.