Audi A6 C7 A7 4G Petrol Fuel Pump Tank Sender Control Unit 4G0919051F

Audi A6 C7 A7 4G Petrol Fuel Pump Tank Sender Control Unit is an original component from the Fuel pumps and level sensors group, designed for precise fuel supply management in petrol engines. The module is responsible for controlling the operation of the in-tank pump and interacting with the fuel level sensor, which directly impacts the stability of the engine's operation and the reliability of the onboard computer readings.

Specifications and technical data

• SKU: 4G0919051C
• Mark: Audi
• Condition: Used
• OEM Part Number: 4G0919051C
• Substitutable numbers: 4G0919051C, 4G0 919 051 C, 4G0 919 051 K, 4G0919051K
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel system

The presented control unit is dedicated to petrol supply systems in Audi A6 C7 and Audi A7 4G models. As an electronic component working with the in-tank fuel pump, it is responsible for:

• regulating pump performance depending on engine load,
• stabilizing fuel pressure in the supply system,
• processing signals from the fuel level sensor for the instrument cluster and engine control unit,
• coordinating operation with other vehicle modules within the onboard network. Thanks to this, the fuel system operates in a predictable manner, and the petrol engine maintains proper performance characteristics across the entire RPM range.

Benefits of using an original Audi control unit

Using an original module from the Fuel pumps and level sensors group ensures proper fitment with the vehicle's electrical installation and software. In practice, this means:

• maintaining factory fuel system operating parameters,
• correct interaction with the dashboard and engine control unit,
• reduced risk of diagnostic errors and fault messages,
• appropriate fuel pump control characteristics in both city and highway driving modes. For the user, this translates into stable engine starting, predictable throttle response, and reliable fuel level readings, which is particularly important on longer trips.

Technical characteristics and compatibility

The module is designed for operation in systems powered by petrol, in accordance with the factory configuration of the Audi A6 C7 and A7 4G fuel system. As a control element mounted near the fuel tank, it works with the factory pump and fuel level sensor, maintaining the original control logic. Thanks to the presence of the OEM part number and interchangeable numbers, the module can be precisely matched to the specific vehicle equipment version using manufacturer catalogs or VIN verification. This allows for avoiding hardware and software compatibility issues.

Condition, installation, and practical application

The offered item is in used condition, which allows for an economical restoration of the fuel system's efficiency while maintaining the original specification. The module is designed for installation in place of the factory control unit, using the existing wiring harness and mounts, which facilitates service work. In practice, such a control unit is used, among other things, for:

• problems with starting or the engine stalling when warm,
• errors related to fuel pressure in the engine control unit memory,
• incorrect fuel level readings,
• damage to the original module due to moisture or electrical overload. For workshops and private users, this is a solution that allows for efficient and technically correct repair of the fuel system without the need for a costly replacement of the entire pump assembly.

Selection, technical knowledge, and additional materials

To correctly select the fuel pump and level sensor control unit for a specific Audi configuration, it is worth using the OEM part number, reference numbers, and data from manufacturer catalogs. A guide regarding used automotive electronics may also be helpful – detailed information on selection by VIN, hardware and software compatibility, and practical examples can be found in the article Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?. If you are planning a comprehensive repair or upgrade of the fuel system area in your Audi and need other components from the same group, such as controllers, regulation modules, or level sensors, check the available parts in the Audi fuel pumps and level sensors category.