BMW G20 X3 G01 X4 G02 G22 G30 LCI Diesel Exhaust Gas Temperature Sensor 8490146

BMW G20 X3 G01 X4 G02 G22 G30 LCI Diesel Exhaust Gas Temperature Sensor is an original part from the Lambda Sensors and O2 Sensors group, designed for BMW diesel systems. Precise exhaust gas temperature measurement supports the proper functioning of the exhaust gas purification system, stable diesel engine characteristics, and emission reduction.

Specifications and technical data

• SKU: 8490146
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8490146
• Substitutable numbers: 8490146, 13628490146
• Fuel type: Diesel
• Category: Oxygen Sensors

Application and Function in the Exhaust System

The exhaust gas temperature sensor in BMW diesel models is responsible for continuously monitoring operating conditions in the exhaust system, including the particulate filter area and emission reduction components. Accurate temperature readings allow the engine control unit to optimize fuel injection and properly manage regeneration processes, resulting in stable engine operation and reduced risk of component overheating.

Using an original sensor in BMW G20, X3 G01, X4 G02, G22, and G30 LCI models with diesel engines ensures consistency with factory control unit calibration and predictable powertrain behavior under various load conditions.

Benefits of Using an Original BMW Sensor

Using an original exhaust gas temperature sensor in a BMW diesel engine offers a range of practical operational benefits:

• maintaining proper operation of the exhaust gas purification system and particulate filter,
• stable engine operating parameters under low and high loads,
• reduced risk of diagnostic errors related to incorrect temperature readings,
• better compatibility with the factory engine control unit software.

For users who consciously choose parts from the Lambda Sensors and O2 Sensors group, an original exhaust gas temperature sensor is a technically consistent solution with the vehicle's design, facilitating future diagnostics and servicing.

Product Characteristics and Installation

The offered sensor is from a BMW vehicle and is intended for diesel-powered engines. As a used part, it retains its original geometry, connector, and mounting method, which facilitates installation in place of a worn or damaged component without the need for system modifications.

Before installation, the standard service procedure is recommended: check the electrical harness, the connection socket, and verify any fault codes stored in the engine control unit. A correctly selected and installed exhaust gas temperature sensor supports uniform exhaust system operation and facilitates subsequent computer diagnostics.

Selection by Part Numbers and Technical Support

The selection of an exhaust gas temperature sensor for a specific BMW diesel version should be based on part numbers and vehicle data, such as the VIN and engine configuration. This helps avoid hardware and software compatibility issues and minimizes the risk of re-removing the part after installation.

If you want to deepen your knowledge on consciously choosing used electronic and measurement components in a car, including sensors that work with the engine control unit, it is worth reading the guide: Used Automotive Electronics – How to Safely Choose Used ECUs and Sensors. The article discusses selection by OEM numbers, hardware compatibility, and practical aspects of installation.

Expanding Service within the Same Group

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