Audi A3 8V 2.0 TDI CRLB CUNA Exhaust Gas Temperature Sensor EGT 04L906088AB

The Audi A3 8V 2.0 TDI CRLB CUNA Exhaust Gas Temperature Sensor EGT is a component from the Lambda Sensors and O2 Sensors category, designed for precise monitoring of exhaust gas temperature in the exhaust system. A properly selected EGT sensor supports the correct operation of the diesel engine, stable mixture regulation, and proper functioning of exhaust gas purification systems.

Specifications and technical data

• SKU: 04L906088AB
• Mark: Audi
• Condition: Used
• OEM Part Number: 04L906088AB
• Substitutable numbers: 04L906088AB, 04L 906 088 AB
• Category: Oxygen Sensors

Purpose and Function of the EGT Sensor in Audi A3 8V 2.0 TDI

The Exhaust Gas Temperature Sensor EGT in 2.0 TDI CRLB and CUNA units is responsible for the real-time measurement of gas temperature in the exhaust system. Data from the sensor is used by the engine control unit for:

• controlling the fuel injection process and protecting exhaust system components from overheating,
• ensuring the correct regeneration cycle of the DPF particulate filter,
• maintaining stable engine operating parameters under various load conditions.

A functional EGT sensor helps reduce the risk of control unit errors, power loss, and excessive fuel consumption, leading to more predictable vehicle operation.

Benefits of Using an Original Audi Sensor

The offered component comes from the Audi line, which means it retains factory operating parameters and compatibility with the exhaust system in the Audi A3 8V 2.0 TDI. In practice, this means:

• appropriate measurement characteristics tailored to the engine control unit used in CRLB and CUNA versions,
• the correct electrical connector and mounting geometry, facilitating installation in place of the worn-out component,
• stable cooperation with the existing wiring harness and ECU software.

By maintaining the original specification, replacing it with this sensor allows for the restoration of correct exhaust gas temperature readings without the need for installation modifications.

Performance Characteristics and Installation

The presented exhaust gas temperature sensor is a used component, allowing for an economical repair of the exhaust system while maintaining original manufacturing quality. This solution is particularly beneficial for vehicles used intensively, where a reasonable service cost is important while maintaining correct operating parameters.

Before installation, it is recommended to:

• verify compatibility by OEM number or vehicle VIN,
• check the condition of the thread at the mounting location in the exhaust system,
• inspect the wiring harness for any mechanical damage.

A correctly selected and installed EGT sensor helps avoid recurring errors related to exhaust gas temperature and incorrect DPF regeneration.

Audi Lambda Sensors and O2 Sensors – Selecting the Right Component

If you are looking for other components from the Lambda Sensors and O2 Sensors category dedicated to this brand, check out the Audi Lambda Sensors and O2 Sensors available in our store. This will allow you to easily compare different sensor variants and choose a component tailored to the specific engine version and year of your car.

Why Choose Used Electronics and Sensors?

For components such as exhaust gas temperature sensors, reliable used parts are a sensible alternative to new ones. They allow for reduced repair costs while maintaining proper functionality and compatibility with the factory engine control unit. If you want to learn more about selecting used modules and sensors, check out the guide Used Automotive Electronics Onboard – Why Choose Second-Hand ECU Modules and Sensors?, where you will find practical tips on compatibility verification and installation.

Summary

The Audi A3 8V 2.0 TDI CRLB CUNA Exhaust Gas Temperature Sensor EGT is a functional choice for users who want to restore the correct operation of the exhaust system and emission control systems in their car. Its original origin, compatibility with 2.0 TDI units, and the possibility of economical repair make it a practical solution for workshops and individual users looking for a reliable EGT sensor.