Audi A3 8V 2014 1.6 TDI CRKB Exhaust Gas Temperature Sensor 04L906088K

The Audi A3 8V 2014 1.6 TDI CRKB Exhaust Gas Temperature Sensor is part of the Lambda Sensors & O2 Sensors group, designed for diesel systems in Volkswagen Group vehicles. It is responsible for precise exhaust gas temperature measurement in the diesel engine, which is crucial for the exhaust system's operation, component protection, and the correct functioning of emission control systems.

Specifications and technical data

• SKU: 04L906088K
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 04L906088K
• Substitutable numbers: 04L906088K, 04L 906 088 K
• Fuel type: Diesel
• Category: Oxygen Sensors

Function and Application of the Exhaust Gas Temperature Sensor

The exhaust gas temperature sensor in the 1.6 TDI CRKB unit monitors thermal conditions in the exhaust system, sending a signal to the engine control unit (ECU). Based on this data, the ECU can appropriately adjust fuel injection, filter regeneration strategies, and engine operating parameters to maintain stable performance and reduce thermal load on exhaust components.

Using a functional sensor is particularly important in diesel engines where exhaust gas temperatures fluctuate dynamically. Accurate readings help reduce the risk of component overheating while also supporting smooth engine operation.

Benefits of Using an Original Volkswagen Part

This sensor comes from the Volkswagen range, meaning it adheres to factory manufacturing standards and is designed for seamless integration into the Audi A3 8V with the 1.6 TDI CRKB engine. An original component ensures:

• electrical parameter consistency with engine control unit requirements,
• a stable measurement signal across the full operating temperature range,
• compatibility with the factory wiring harness and exhaust system mountings.

This leads to predictable installation and reduces the risk of communication issues between the sensor and the control unit.

Performance Characteristics in Diesel Engines

In diesel engines, the exhaust gas temperature sensor operates in a demanding environment, exposed to high temperatures and variable loads. The component's design, tailored for this application, provides:

• resistance to prolonged exposure to high exhaust gas temperatures,
• measurement repeatability under frequent engine load changes,
• compatibility with emission control systems typical of modern diesel engines.

This makes the sensor a vital part of the engine management system, contributing to thermal safety and stable operating parameters.

Component Condition and Installation Aspects

The offered sensor is a used part, allowing for an economical replacement of a damaged component while maintaining compliance with factory specifications. Before installation, it is recommended to inspect the electrical system and the exhaust system socket to ensure proper contact and a sealed connection.

Selecting the sensor based on manufacturer markings and vehicle technical specifications minimizes the risk of incompatibility. If in doubt, consult catalog data or reference numbers assigned to the specific engine configuration and model year.

Selecting a Used Sensor and Expert Knowledge

When choosing a used exhaust gas temperature sensor for the Audi A3 8V 1.6 TDI CRKB, it is crucial to match it to the specific engine version and exhaust system. It is helpful to use OEM markings and interchangeable numbers, as well as compare it with the removed part. Additional guidance on selecting used modules and sensors, including principles for selection based on manufacturer markings and compatibility issues, can be found in the guide Used Automotive Electronics Onboard – Why Choose Second-Hand ECUs and Sensors?.

If you are planning a comprehensive repair or upgrade of the exhaust system area in your Volkswagen and need other parts from the same group, such as additional temperature sensors, measurement probes, or control elements, check the available parts in the Volkswagen Lambda Sensors & O2 Sensors category.