Audi A3 S3 8Y 2.0 TFSI Exhaust Gas Temperature Sensor 06Q919519R

Audi A3 S3 8Y 2.0 TFSI Exhaust Gas Temperature Sensor is a precision component of the petrol engine control system, responsible for the accurate measurement of exhaust gas temperature. This allows the ECU to optimally manage the air-fuel mixture, turbocharger operation, and component protection, which translates into stable power characteristics and safe engine load. This solution is designed to maintain the factory operating parameters of the modern TFSI engine.

Specifications and technical data

• SKU: 06Q919519R
• Mark: Audi
• Condition: Used
• OEM Part Number: 06Q919519R
• Substitutable numbers: 06Q919519R, 06Q 919 519 R
• Fuel type: Petrol
• Category: Temperature Sensors

The role of the exhaust gas temperature sensor in the 2.0 TFSI engine

The exhaust gas temperature sensor in the 2.0 TFSI unit plays a key role in monitoring operating conditions within the exhaust system. Based on the signal from this component, the engine control unit adjusts the fuel injection quantity, ignition timing, and thermal protection strategy, which helps maintain stable operation under variable loads and high temperatures characteristic of turbocharged engines.

In practice, a properly functioning sensor helps reduce the risk of overheating exhaust components and supports the maintenance of appropriate emission parameters. For the user, this means more consistent acceleration characteristics, predictable vehicle behavior, and better compatibility with the factory ECU software.

Benefits of using an original Audi sensor

Using a component from the Temperature sensors group dedicated to the Audi A3 / S3 8Y ensures proper geometric and electrical fitment to the vehicle's installation. The appropriate resistance characteristics and response to temperature changes are tuned to the maps in the ECU, which minimizes the risk of diagnostic errors and incorrect fuel mixture adjustments.

The main advantages of using an original solution include:

• Stable measurement signal – predictable response to temperature changes across a wide range of loads.
• Compatibility with factory ECU software – no need for adaptation or modification of the installation.
• Proper mechanical fitment – correct seating in the exhaust system and proper thermal contact.

Performance characteristics and application

The presented sensor is designed for a petrol engine, which is significant due to different operating temperature characteristics compared to diesel units. In the 2.0 TFSI engine, this component operates under high thermal load conditions, which is why its correct operation is essential for both the protection of the turbocharger and the downstream exhaust system components.

Replacing the exhaust gas temperature sensor is particularly recommended in situations where errors related to exhaust gas temperature occur, performance drops, the engine enters limp mode, or there are issues with maintaining stable operation at higher RPMs. Installing a correctly matched component allows for restoring proper communication between the ECU and the exhaust system and reduces the risk of secondary damage.

Condition, origin, and selection by part number

The offered Audi exhaust gas temperature sensor comes from disassembly and is a used part, which provides a cost-effective solution while maintaining compliance with factory specifications. In the case of electronics and engine accessories, selection by part number and compatibility with the specific engine version and vehicle model year is crucial for the proper operation of the entire system.

To better understand how to safely select used modules and sensors, including items from the Temperature sensors category, it is worth checking out our guide describing selection by OEM numbers, hardware and software compatibility, and practical installation tips: Used automotive electronics – a guide to selecting ECU modules and sensors.

Expanding the temperature measurement system in your Audi

If you are planning a comprehensive repair or upgrade of the engine thermal management area in your Audi and need other components from the same group, such as additional cooling system sensors, intake manifold sensors, or components monitoring temperature in other sections of the exhaust system, check out the available parts in the Audi temperature sensors category.