Audi A1 8X 2.0 TFSI CWZA Fuel Tank Bottle Pump Sender Unit 6R0919051K

Audi A1 8X 2.0 TFSI CWZA Fuel Tank Bottle Pump Sender Unit is an original fuel system component designed for precise operation in the TFSI engine. The integrated pump and sender unit module is responsible for both stable fuel delivery and accurate fuel level readings in the tank, which is crucial for trouble-free operation. This OEM solution ensures consistency with the vehicle's factory electrical and hydraulic systems.

Specifications and technical data

• SKU: 6R0919051K
• Mark: Audi
• Condition: Used
• OEM Part Number: 6R0919051K
• Substitutable numbers: 6R0919051K, 6R0 919 051 K
• Fuel type: Petrol
• Part type: Fuel Pump
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel system

The presented module belongs to the Fuel pumps and level sensors category, combining the functions of engine fuel supply and fuel level measurement in the tank within a single housing. In practice, this means:

• maintaining the correct fuel pressure for the TFSI unit,
• stable engine operation across the full load range,
• continuous fuel level measurement via the sender unit and signal transmission to the instrument cluster,
• consistency with the factory fuel system control.

As a result, replacing the complete module is an effective way to resolve issues such as hard starting, engine misfiring, or incorrect fuel level readings.

Benefits of using an original Audi module

The original Audi component ensures a perfect fit for the factory installation without the need for modifications. Key advantages of this solution include:

• maintaining the operating parameters specified by the vehicle manufacturer,
• compatibility with the electrical system and engine control unit,
• appropriate operating characteristics for the gasoline engine,
• reduced risk of adaptation issues or ECU errors.

Choosing an original fuel pump and sender unit module is particularly important in modern TFSI engines, where fuel supply precision impacts performance, engine smoothness, and fuel consumption.

Condition, installation, and part matching

The item is sourced from disassembly and is offered as a used OEM component, allowing you to combine factory-grade fitment with a more cost-effective purchase compared to a new part. Before installation, it is recommended to perform a standard check of the vehicle's fuel system (hose integrity, filter condition, electrical supply status) to fully utilize the module's potential.

Part selection for a specific vehicle should be based on the OEM number or vehicle data, which minimizes the risk of incompatibility. If in doubt, it is helpful to compare the design of the pump housing, electrical connectors, and mounting method in the tank.

Operation and diagnostics of the fuel system

To maximize the service life of the fuel pump and sender unit module, it is important to use high-quality gasoline and regularly check the condition of the fuel system. In the event of symptoms such as power loss, hesitation during acceleration, or unstable fuel level readings, it is advisable to perform fuel pressure diagnostics and check for engine control unit error codes.

For users who want to deepen their knowledge of the construction and maintenance of the fuel system, a guide describing the operation of injectors, pumps, and the tank, as well as part selection by number and regeneration principles, will be useful – details can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

Expanding your Audi fuel system upgrade

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 additional pump modules, fuel level sensors, or complete in-tank housing assemblies, check out the available parts in the Audi fuel pumps and level sensors category.