Audi A3 8V 1.6 TDI 2.0 TDI Diesel Fuel Pump Tank Fuel Sender Unit 5Q0919050AQ

Visual condition of the part

The product shows signs of use visible in the photos.

Audi A3 8V 1.6 TDI 2.0 TDI Diesel Fuel Pump Tank Fuel Sender Unit is an original component from the Fuel pumps and level sensors group, designed for diesel fuel supply systems. It ensures precise delivery of diesel fuel to the injection system and reliable fuel level readings, which translates into stable engine operation and correct gauge readings on the instrument cluster.

Specifications and technical data

• SKU: 5Q0919050AQ
• Mark: Audi
• Condition: Used
• OEM Part Number: 5Q0919050AQ
• Fuel type: Diesel
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel system

The described Audi A3 8V 1.6 TDI 2.0 TDI Diesel Fuel Pump Tank Fuel Sender Unit with an integrated float and level sensor has been designed specifically for Audi A3 8V generation models with diesel engines. The component is responsible for pumping diesel fuel from the tank to the rest of the system and for continuous fuel level measurement, which is transmitted to the vehicle's electronics.

Thanks to a design adapted for Diesel fuel, the component ensures appropriate efficiency and stable supply pressure under typical operating conditions, both in city driving and on longer routes. The integrated level sensor works with the factory instrument cluster, allowing for full cockpit functionality after replacing the part.

Construction and key technical features

The fuel pump mounted in the Audi tank is constructed as a complete unit with a basket, pumping module, and level sensor. This solution:

• simplifies the installation and removal process within the fuel tank,
• ensures proper fuel flow inside the basket,
• enables precise fuel level readings throughout the entire operating range of the tank.

As an item from the Fuel pumps and level sensors category, the product is optimized for operation in a diesel environment, taking into account appropriate material resistance and the requirements of injection systems used in modern TDI units.

Benefits of using an original Audi pump

Using an original Audi A3 8V 1.6 TDI 2.0 TDI Diesel Fuel Pump Tank Fuel Sender Unit brings a number of practical operational benefits:

• Proper cooperation with vehicle electronics – correct fuel level indications and no errors related to readings in the control units.
• Stable fuel injection system supply – reducing the risk of airlocks and performance drops at low fuel levels.
• Fit to tank geometry – the design of the basket and float is adapted to the shape of the Audi A3 8V tank.
• Consistency with the factory fuel system – no need for installation modifications or additional adapters.

The used OEM part allows for cost-effective repair of the fuel system while maintaining factory performance characteristics, which is particularly important in the case of modern diesel units.

Condition, verification, and part selection

The Audi A3 8V 1.6 TDI 2.0 TDI Diesel Fuel Pump Tank Fuel Sender Unit is offered as a used part, which allows for reduced service costs while maintaining the manufacturer's original specifications. Before installation, it is recommended to verify compatibility with the specific engine version and model year of the Audi A3 8V, as well as to compare the module's construction with the removed part.

To increase the durability of the system after replacement, it is worth ensuring the cleanliness of the fuel tank interior and the condition of the supply and return lines. A correctly selected and installed fuel pump with a level sensor minimizes the risk of starting problems, engine stalling at low fuel levels, and incorrect readings on the dashboard gauge.

Fuel system expansion and technical knowledge

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 pumping modules, level sensors, or complete basket assemblies in the tank, check out the available parts in the Audi fuel pumps and level sensors category.

When working with fuel components and elements that interact with vehicle electronics, it is worth knowing the best practices for selecting and installing used modules. Additional tips on choosing and integrating electronic components in a car can be found in the article: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?