Audi S8 D3 Fuel Tank Pump Sensor Sender Unit Gauge Left N/S 3D0919673L

Audi S8 D3 Fuel Tank Pump Sensor Sender Unit Gauge Left N/S is an original fuel system component designed for precise fuel level measurement and stable fuel system operation. This component from the Fuel pumps and level sensors group ensures proper integration with the electrical system and the instrument cluster, resulting in accurate information for the driver and correct vehicle performance.

Specifications and technical data

• SKU: 3D0919673L
• Mark: Audi
• Condition: Used
• OEM Part Number: 3D0919673L
• Substitutable numbers: 3D0919673L, 3D0 919 673 L
• Location on the vehicle: Left
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel system

The described element combines the function of a fuel level sensor and an in-tank pump assembly, mounted on the left side of the vehicle. In cars with gasoline engines, it is responsible for:

• continuous monitoring of the fuel level in the tank and transmitting the signal to the instrument cluster,
• stable fuel supply to the engine at the appropriate operating pressure,
• cooperation with the engine control system, which uses fuel level information for diagnostics and operating strategies.

Thanks to its precise fit for the Audi S8 D3 design, the sensor and pump maintain the correct float geometry and electrical characteristics, which reduces the risk of incorrect readings and starting issues.

Compatibility and fitment for Audi S8 D3

The element has been designed specifically for the Audi S8 D3 generation model with a gasoline engine, taking into account the specific construction of the fuel tank and the layout of the equipment. The correct placement on the left side of the vehicle guarantees:

• proper positioning of the float in the tank chamber,
• secure mounting at factory attachment points,
• compatibility with the original wiring harness and connectors.

Such fitment reduces the need for installation modifications, facilitates service, and allows for maintaining the factory operating parameters of the fuel system.

Benefits of using an original used component

Choosing an original, used fuel level sensor with a pump for the Audi S8 D3 is a solution that allows you to balance cost control with the preservation of proper technical parameters. The most important advantages include:

• factory geometry and electrical characteristics matched to the instrument cluster and engine controller,
• preservation of the original build quality typical of the Audi brand,
• the ability to restore correct fuel level readings without interfering with the installation.

This is particularly important in the case of symptoms such as incorrect fuel gauge readings, starting problems at low fuel levels, or sporadic engine stalling during dynamic driving.

Professional application and installation tips

Due to the nature of the element – a combination of a pump and a fuel level sensor – installation by a workshop experienced in working with Audi fuel systems is recommended. During replacement, it is worth paying attention to:

• the condition of the seals and retaining rings in the tank,
• the cleanliness of the inside of the fuel tank before installation,
• correct positioning of the float to avoid jamming and false readings.

A correctly installed element allows for restoring stable operation of the fuel supply system as well as clear, repeatable fuel level readings on the dashboard.

More solutions for the Audi fuel system

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 pump modules, level sensors, or fuel basket components, check out the available parts in the Audi fuel pumps and level sensors category.

Used components vs. electronics and diagnostics

When replacing fuel system components, the question often arises about the validity of using used parts, especially in the context of cooperation with vehicle electronics. To better understand when it is worth choosing used components and how to safely select them in terms of diagnostics and compatibility, see the article: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?