Land Rover Discovery Sport L550 Exhaust Gas Temperature Sensor 2.0 G4D3-5J254-CB

Land Rover Discovery Sport L550 Exhaust Gas Temperature Sensor G4D3-5J254-CB is a specialized component from the Temperature Sensors group, designed for use with diesel engines. It is responsible for precise exhaust gas temperature measurement, which is crucial for the proper functioning of the exhaust system, exhaust gas aftertreatment systems, and diesel engine control strategies. Using a pre-owned OEM component helps maintain the original engine performance parameters while keeping service costs reasonable.

Specifications and technical data

• SKU: G4D3-5J254-CB
• Mark: Land Rover
• Condition: Used
• OEM Part Number: G4D3-5J254-CB
• Substitutable numbers: LR074128, LR110291, G4D35J254CB, G4D3-5J254-CB, G4D39D475BC, G4D3-9D475-BC
• Fuel type: Diesel
• Part type: Sensor
• Category: Temperature Sensors

Role of the Exhaust Gas Temperature Sensor in a Diesel Engine

The exhaust gas temperature sensor in the Discovery Sport L550 works in conjunction with the engine control system, providing it with accurate information about the thermal conditions within the exhaust system. Based on this data, the control unit can appropriately adjust fuel injection, turbocharger operation, or the regeneration strategy for exhaust gas aftertreatment components. A properly functioning sensor helps maintain stable power output, reduce fuel consumption, and lower pollutant emissions.

Benefits of Using an Original Sensor

Using an original exhaust gas temperature sensor in the Land Rover Discovery Sport L550 ensures:

• compliance with the original engine control unit software,
• stable engine operation across the full load range,
• proper handling of thermal protection procedures for exhaust system components,
• reduced risk of diagnostic errors related to exhaust gas temperature.

Therefore, replacing with an original, used part is a technically safe and economically justified solution, especially for modern Diesel engines, which are highly sensitive to the quality of sensor signals.

Selection and Compatibility

The sensor should be selected based on the OEM part number and available cross-reference numbers to guarantee full compatibility with the specific configuration of the Land Rover Discovery Sport L550. Proper selection is important not only for correct installation but also for matching the measurement characteristics with the maps stored in the engine control unit. A used part with this reference allows for maintaining the original system operating characteristics without the need for software modifications.

Component Condition and Service Application

The offered exhaust gas temperature sensor is a used component, intended for service applications in vehicles with diesel engines. This type of component is particularly useful for:

• clearing errors related to incorrect exhaust gas temperature readings,
• diagnosing problems with the exhaust system operation in diesel engines,
• restoring proper engine operation after a sensor failure.

Choosing an original, used sensor helps reduce repair costs while maintaining the correct operating parameters of the engine control system.

Expanding the Temperature Measurement System in Land Rover

If you are planning a comprehensive repair or upgrade of the exhaust system area in your Land Rover and need other parts from the same group, such as additional temperature sensors, probes, or exhaust condition monitoring components, check the available parts in the Land Rover Temperature Sensors category.

Technical Support and High-Temperature Operation

The operation of the exhaust gas temperature sensor is particularly demanding during driving in high ambient temperatures and under heavy load for a diesel engine. It is useful to understand how thermal conditions affect the entire powertrain and which components are most susceptible to wear. Practical tips on operating a car in hot weather and the impact of temperature on components can be found in the guide Summer Heat vs. Cooling System: Used Radiators and Fans Guarantee Savings, which will help you better plan the service maintenance of your car.