Front and Rear Height Level Sensor Kit for Land Rover Discovery III L319 and Range Rover Sport LR020155 LR020157 LR020161 Replacement Function: The ride height sensor provides height position data to the vehicle ECU to control the air suspension and maintain proper ride height and stability. Why you need it: Replaces a damaged or worn height sensor to restore accurate height information to the ECU, improving suspension performance. Compatibility: Suitable for Land Rover Discovery III (L319) and Range Rover Sport models that use part numbers LR020155 LR020157 LR020161. Installation: Easy to install and designed as a direct replacement for worn or damaged suspension sensors. Performance: Reinstates correct height sensing, aiding proper suspension adjustment and vehicle handling. Use scenarios: After a sensor fault warning or improper ride height readings, to restore correct suspension operation. Following maintenance or replacement of air suspension components to ensure accurate height data to the ECU. Replacing worn sensors to prevent incorrect height adjustments and improve ride quality.