Audi A3 8V VW Golf Mk7 Fuel Temperature Sensor Sender 2.0 TDI 04L919565

Audi A3 8V VW Golf Mk7 Fuel Temperature Sensor 2.0 TDI is a component from the Engine Sensors & Switches group, responsible for precise fuel temperature measurement in the fuel system of diesel engines. A properly functioning sensor supports stable engine operation, optimizes injection quantity, and facilitates the diagnosis of potential fuel system irregularities.

Specifications and technical data

• SKU: 04L919565
• Mark: Audi
• Condition: Used
• OEM Part Number: 04L919565
• Substitutable numbers: 04L919565, 04L 919 565
• Category: Engine Sensors & Switches

Purpose and Function of the Fuel Temperature Sensor

The fuel temperature sensor used in Audi A3 8V and VW Golf Mk7 models with the 2.0 TDI engine works with the engine control unit, transmitting information about the current diesel fuel temperature. Based on this signal, the control unit can appropriately adjust:

• fuel injection quantity across various load ranges,
• cold and hot start strategies,
• the operation of the injection system under high fuel temperature conditions.

A functional component of this type helps maintain smooth engine operation, reduce the risk of smoke, and supports stable combustion parameters in TDI engines.

Benefits of Using an Original Audi Sensor

The offered sensor comes from the Audi line, meaning it adheres to factory manufacturing standards and ensures proper fitment for VAG group vehicles' fuel systems. Thanks to this:

• the fuel temperature signal is consistent with the engine control unit maps used in Audi A3 8V and VW Golf Mk7,
• compatibility with the wiring harness and connector used in these powertrains is maintained,
• the risk of control unit errors resulting from incorrect aftermarket part characteristics is reduced.

Choosing an original solution is particularly important in modern diesel engines, where accurate fuel temperature measurement impacts running smoothness, fuel consumption, and the correct operation of diagnostic systems.

Performance Characteristics and Component Condition

The presented sensor belongs to the group of wear-and-tear parts that can become worn or damaged during vehicle use, leading to engine control unit errors, starting problems, or rough running on warm fuel. Replacing it with a functional component restores correct temperature readings and facilitates further fuel system diagnostics.

The product is offered as a used part, providing a cost-effective solution while maintaining the original manufacturer's specifications. It's a practical option for both routine repairs and budget-conscious fuel system overhauls in vehicles with the 2.0 TDI engine.

Selection, Diagnostics, and Related Fuel System Components

When selecting a fuel temperature sensor for an Audi A3 8V or VW Golf Mk7, it's important to ensure compatibility with the specific 2.0 TDI engine version and injection system configuration. In workshop practice, replacing this component is often accompanied by:

• diagnostics of the injection system when fuel temperature-related errors occur,
• work on the fuel rail or fuel lines,
• comprehensive fuel system servicing in vehicles with higher mileage.

For a deeper understanding of diesel fuel system construction and servicing, including injectors, pumps, and the fuel tank, the article: Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Overhaul may be helpful. You will find practical tips on diagnostics and selecting parts by catalog numbers there.

Related Categories and Additional Technical Materials

If you are planning a comprehensive engine area repair or upgrade for your Audi and need other components from the same group, such as position sensors, pressure switches, or temperature measuring elements, check the available parts in the Audi Engine Sensors & Switches category.

For work on engine accessories in other vehicles, especially premium brands, it is also worth familiarizing yourself with the guide on servicing Mercedes-Benz powertrains, which discusses aspects like timing and injection systems: Reliability Under the Star – How to Care for Engine Accessories in Popular Mercedes-Benz C-Class and E-Class Models?. This will help you better understand the importance of properly functioning sensors and accessories in modern engines.